DE2040982A1 - Programmable hydraulic control device - Google Patents

Description

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"ENiAM RUSCHKg Ι ', κ :. HA NS Z ΛGULAft .-. ι Z- HcIN 33 U ".U \ JH

International Basic Economy Corporation, SewYork / Hew York (USA)

Programmable hydraulic control device

The invention relates to a hydraulic control device, which consists of a large number of standardized and multiple functions exercising units, which can be selected according to can be put together in a program and perform essentially any desired hydraulic control function. the Device according to the invention is characterized by several functions exercising valve units, which together with the , management units carry out control and monitoring tasks "

The invention relates generally to hydraulic devices and, in particular, to control systems for hydraulic power devices, which control systems can be composed of standardized components that perform multiple punctures _{or the like}

-Z-

In the manufacture of hydraulic control systems for Power plants, pumps, motors, etc. as well as for mobile equipment, ' military purposes and for other purposes for which tax and controllable hydraulic power plants are required, it has been customary to use the control and regulation devices composed of various control valves and other components that are connected to one another by external pipelines became.

In other cases, such valves and components were attached to each other adjacent by connecting the housings of the individual components with screws, avoiding external pipelines put together so that the passages of one housing with the passages of the adjacent housing of the system in connection be set. This manufacturing process enabled certain external pipelines to be ported, however the housing and structural units are only developed and designed accordingly for a specific purpose, without standardization of interchangeable and different punctures Units to be provided. Such conventional hydraulic control systems, which are used to carry out several control and Regulatory functions requiring multiple individual valves were more normal and common with different valves special design equipped with the pole that the Individual valves were built into the entire system as special units that were only set up for a special purpose was.

In contrast to this, the invention provides a system according to which hydraulic control and conical control systems are assembled can be that perform both simple and complicated control and regulating functions of all kinds essentially can, and which are composed of a number of standardized components that perform several punctures, without the need for connecting main pipelines.

The structural units to be included in a flow circuit according to dex invention are with two channels and four passages equipped and standardized so that they can be according to a program

100816/1 * 14

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optionally to hydraulic series, parallel and series parallel flow circuits can be put together.

The invention also provides for standardized control and regulating valve units with a valve cage performing several functions, which can be optionally and programmed into a flow circuit and can be put together in such a way that that practically every simple and complicated tax and regulation functional function can be exercised »

From the standardized components and valve units described above can essentially any hydraulic control and regulation system in a simple manner from just a few designs. j can be assembled according to standardized multipurpose units. ™

The invention also provides novel means of attachment of the structural units in front of each other, which enable the structural units to be assembled in different arrangements. These Littel consist of an arrangement of several rods with of a specific and standardized length with standardized mounting holes cooperate on the components, so that they are put together in numerous different arrangements can"

The structural units according to the invention are provided with internal sealing means which enable the production of a two-channel series parallel arrangement. Recesses are provided on the components which _interact with elastic sealing elements ™ and which are effective in all two-channel connection points between the various components in all different arrangements.

The invention also provides a standardized central block, which cooperates with parallel side blocks in a wide variety of arrangements such that a mounting means for the selected valve unit can perform multiple punctures. Because of Such an arrangement can have numerous different controlling options and flow-circle-forming punctures with the help of the outward projecting side arm assemblies are provided, wherein the Diverting the flow between the side arias from the

1098 1 B / 131 A « ORIGINAL INSPECTED

Above middle block and the associated valve unit is carried out, so any desired interconnection can be made. In addition, all of the named side arm arrangements can be connected to further middle blocks so that a flow can be diverted to a subsequent valve unit on the additional middle block for the purpose of increasing or changing the flow. J3s int is therefore possible to subdivide the various control eruptions z ~ i , v ^ y ^{; i} i ~ uig-ii, and-liar.m, reinforce and treat in different ways, for which purposes only the described flow circuit units and the valve units are needed v /earth"

i <ach of the invention are in the above-mentioned flow circuit units also standardized connection blocks with the already called two channels and four passages. These connection blocks allow connections to be made with pumps and storage containers, so that together with the other units, a compact structure of the entire control system is possible »

The same standardized fasteners, passages and seals are used in the connection blocks mentioned as with the middle block and side block entries. Of the required inventory of structural units is therefore limited to a few Limited versions.

Perner, all components described so far as well as the abotandsblocks to be used together with them are standardized to such an extent that their final three-dimensional arrangement of a complete system can be represented schematically by means of a two-dimensional plan or by a flow plan in such a way that even complicated flow paths as well as the valve functions can be displayed easily understood .hin technician with ordinary skill can thus without difficulty in a specific control system using a two-dimensional flow chart "o program that without v eiteres required for the specific purpose of standardized building blocks can be selected /. It is pointed out that this is only possible through the shaping of the individual components.

¹ ° ^{9 8 1 B n Ί 1} 'ORIGINAL, NSPECTED

a preferred embodiment of the invention hereinafter described _o In the accompanying drawings, the

₀ I a diagrammatic representation of a hydraulic ■■ control and regulation device according to the invention,

! 'ig.2 a flow diagram of the device according to the

Figo 3 is a more detailed flow chart has been, however, transposes the hydraulic 'control device according to the Figd which is substantially similar to the flow diagram of the I ¹ Ig.ü in the form of a Stromungsstreifens to represent the two-channel arrangement of the various units and components, which in the ~ Fig _o i with | are provided with a dashed border,

I ¹ Ig.4 a diagrammatic representation of the entire arrangement of the flow circuit units with the two-channel flow paths of the typical hydraulic control system according to I ¹ Xg.!, Whereby the valve units, the control units and the fastening rods have been omitted,

5 shows a diagrammatic representation of the individual Components disassembled first, which is part of the forms the control system shown in Figo 1,

Fig. 6 shows a partially sectioned representation of part of the first branch arrangement according to Mg ₀ 5,

PigoY a diagrammatic representation of one in the individual parts' disassembled second branch arrangement, which forms a further part of the hydraulic control system shown in Figure 1,

8 shows a diagrammatic representation of a broken down into the individual parts disassembled connection arrangement, which is a further part of the system according to Figo 1,

Mg.9, 10 a plan view and a side view of a connecting block in the control system according to FIG. ₀ 1,

ii, 12, 13 are a plan view, a front and a side view of a connecting block adapter which another structural unit of the system according to the FigoT forms,

10981 β / 111 M: -.ORIGINAL INSPECTED '

FigoH, HA j ..? Ine side and bottom view of a parallel side block P1 - P2, which represents another unit of the device according to Figure 1,

Jj ¹ Ig ₀ 15, 15A each a side and bottom view of a second parallel side block P1 - P3, which represents a further different unit of the device according to FIG.

15, 16 are a plan view and a side view of a normal One-third spacer block, which forms a further unit in the device according to Figure 1,

18, 18A each have a side and bottom view of a parallel side block P2 - P3, which is another separate unit in the device according to Figure 1 forms,

Mg.19, 19A a side or bottom view of a parallel side block (three paths P1 - P2 - P3), which forms a special unit in the device according to Fig. 1,

Pig.20, 21 a plan view and a side view of a series side block, which forms a special unit in the device according to Figure 1,

Figo 22, 23 respectively a plan view. a side view of a four-way valve adapter block, which forms a special unit in the establishment according to Fi ^ oI,

Figo24, 25 a plan view _and a side view of a filter adaptation bio eke a, which forms a special sin in the device according to FIG.

26-28 a front, a side and a rear view a central block unit in the device according to FIG. 1,

FIG »291 30 is a plan view BEZW" is a side view of a normal Abstandablockes which forms a particular unit in the apparatus of FIG _o 1,

Fig. 31, 32 respectively a plan view. a side view of a modified normal one-third spacer block which forms a unit in the device of FIG.

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Fig. 33 is a section along the line 33-33 in Fig. 38, the a universal flow valve assembly transformed into a safety valve shows according to the invention,

Pig, 34-37 each have a different view of the safety valve the Pig. 33,. ■ ■ '

FIG. 38 a section along the line 38-38 in FIG. 34 through the Safety valve shown in Figures 33-37,

38A is a detail from a sectional drawing showing a valve piston spacer shows with which the valve unit can be modified according to Figures 33-33,

Fig.38B one of Figo3öA similar Barstellung showing the arrangement \ without the valve piston spacer, ™

Fig ο 39-42 each a representation of one under direct spring action standing cross relief valve which is a modification of the valve unit of the device according to the invention represents

Figo43 is a section through that shown in Figures 39-42 Cross relief valve according to the line 43-43 in Fig. 39,

i'ig.44-47 each a view of a pressure-compensated flow control valve, this is a further modification of the flow veins represents valve unit according to the invention,

Figo48 a sectional drawing which ren the internal arrangement of the pressure compensated flow control valve according to the Figu- \ displays 44-47 and which is executed in Figo44 along line 48 _O 48.

Fig. 49, 50 each a section through a shut-off valve plate unit, which is used together with certain valve units according to the previous figures,

51 a schematic representation of the flow circuit for the safety valve according to Figures 33 - 38A,

Figo5iA an overlooks the plug and opening symbols, which are used in the various overviews,

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Fig. 5 ^ a schematic representation of a typical four-way valve, which is used in the system according to Fig. 1,

Pig. 53 an overview of the control program of a compensating valve unit, which is used in the device according to FIG. 1,

Pig. 54 an overview of the control program for the pressure compensated Flow control valve according to Figures 44-48,

55 shows an overview of the control program of the cross relief valve according to Figures 3y-43,

Fig. 56 is a schematic representation of the four-way valve which forms part of the system according to Figure 1, and the

57 shows a schematic representation of a return line filter unit, which forms part of the system according to FIG.

FIG. _A 1 shows a hydraulic control system, designated as a whole by 20, which is composed of line and valve units which are equipped with common seals, rods, passages. The individual units or blocks are divided into specific functional categories, as will be described later. As can be seen from Figures 1, 3 and b, the blocks are that of a typical flow-thru arrangement, thereby creating dual conduits for pressure and flow from a source of pressurized liquid, such as a pump 66 shown in Figure Z. with variable displacement as well as for a flow back to a reservoir 74 are created. Such a double line arrangement consists of a pressure channel 110 connected to the pump b6 and a discharge channel 112 connected to the container 74.

Li it the passage arrangement 4 ^ and the channels 110 and 112 can therefore inlet and outlet connections with the two branch arrangements of two-channel units, with a first branch as a whole with 130 and a second in FIG Branch as a whole is designated by 13 ^. Each of the_of the Branches 110 and 112 outgoing branches provides a complete

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ORlGlMAL INSFECTED

permanent manifold assembly for performing motor Arbeite- · functions represents ₀ in the i ¹ ig _e is 2 at 108 a typical rotary engine Bela ^ tung for the branch 130 and represented a force applying cylinder for d en branch 132 at 106 - -.

The first branch 130 is connected to the continuous or manifold assembly 42 by means of an adaptation block 34 ,, the one parallel side block 26 directly with a central block 30 is connected is ₀ At the top of the center block 30 is mounted, which in turn serves for supporting a second parallel side block 22nd The entire branch assembly 130 is attached to the manifold block 42 by mounting screws 146 that pass through the holes 151 on the base flanges on the adapter block 34 and screw into threaded bores 153 on the top of the block 36 »

It should be noted that interface seals are provided for the branch and manifold units are, as shown in FIGS. 5 and 6 at 120. The one in the 1, channels 134 and 136 of the first branch 130 shown lead to the liquid motor 108, as in FIGS. 2 and 3 shown «. From these figures it can be seen that the outlets these channels 134 and 136 are located on the upper interface of the parallel side block 22 are, as at 134-A and 136-A shown ο

The second branch arrangement shown in FIGS. 1, 4 and 7 132 is attached to the manifold assembly 42 by means of an adapter block 78. One with the underside at the Mating block 78 attached center block 80 carries on the top a one-third spacing block 96 and a parallel side block 98, as can best be seen from Mg «, 7, An der On the side 149 of the middle block 80, two one-third spacer blocks 84 and 86 and a parallel side block 88 are also attached.

Both branch assemblies 130 and 132 are on the manifold assembly 42 fastened by means of viewing screws I46, which are drilled through 151 look at the base of the adjustment blocks 34 and 78 are carried out.

^: ■. : ■. ■ ORIiSiNALiNSPECTED

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// ie in the χ; ^ uren 1-4, is attached to the HO channel the working cylinder 106 is connected to its outlet 140-A. The channels or passages 138 and 142 are plugs 91 and 93 provided after assembly, as these passages are not used in the present control system.

'can never be seen from Figures 1, 4 and 8, the Manifold assembly 42 from standardized units, namely from the manifold block 36, the parallel side block 44, the normal spacing blocks 50 and 52, the manifold block 54, the normal spacing block 5b and from the series side block 58, which units are held together by standardized threaded rods 122 with the required length. As shown at 114, are the connecting rods for attaching the units of the Branches used on each other. The connecting rods 122 extend through all of the collection units that are connected to the Connecting rods screwed nuts 118 held together It can be seen from this that, with the help of the standardized connecting rods, each selected branch of the manifold units can be put together and held together, with the seals 120 are used at the transition points between the units. The shape of these interface seals 120 can also be seen from FIG. 5, in which the individual parts of branch 130 are shown which seals are provided at each interface between the conduit blocks will"

Pig.8 shows the individual in a graphical representation Components of the manifold arrangement 42, in which the standardized seals 120 are also used.

The threaded rods used to hold the units together 122 are of the same diameter and thread as the rods 114 that hold the various rods together Units and center blocks 30 and 80 in branch assemblies 130 and 132 are used, the only difference being consists in the stair-en 114 in threaded bores 155 are screwed into the center blocks and hold the side blocks and the other units to the center blocks,

1 Ö 9 8 1 _{5/1 3 U 0R; GiNAL} , _NSPECTED

2Ö4Ü98 2

while the rods holding the Samniel line units together 122 extend through the entire assembly and carry the nuts 118 at the ends. Me fastening rods 114 and 122 are near the sewn ends provided with flattened areas, not shown, to which a Wrench can be used when the rods are in Threaded holes are to be screwed in,

It is further pointed out that the line units in the direction of the Dappel canals, such as the canals 110 and the following lengths, are related to an arbitrarily selected length unit _{or the like}

Unit relative length ύ

1-O manifold block 56-54 2. Adaptation block 34-78

5 ο parallel side block P1-P2 22-36-44-88

4o parallel side block P1-P3, 98 5o parallel side block P2-P3

(Ji'igo18)

6e parallel side block P1-P2-P3

2 Units of length 1 It 1 Il 1 Il

1 11 1/3 It 1/3 Il 1 Il 2 Il every suitable length

7 1/3 spacer block 86

8ο One-third spacer block 84 (1 channel blocked)

9o normal spacing block 50-52-56

10. Series side block 58

11. Middle block 80-30 and end block for rod ends

The lengths of the standardized fastening rods 114 and 122 are all related to the arbitrarily selected unit of length and are whole multiples of the unit of length, so that they hold together of the units of a system with threaded rods only few different lengths are required.,

Of course, a certain spatial orientation and, in the case of the double channel arrangement, a certain diameter is maintained within the entire system. Z "B _O is the distance between the outlets, the size and the sealing

1Ö9815 / 13U

Arrangement in branches 130 and 132 exactly the same as in the manifold arrangement »

All of the blocks attached to the middle blocks, e.g. to blocks 30 and 80 according to FIG. 1, point to the intermediate surfaces have the same characteristics, so that the individual blocks are largely interchangeable with one another.

Another important feature of the system according to the invention can be seen in the fact that the double channels in the branch arrangements, such as 130 and 132, are set up in such a way that normal flow valve units which are attached to the standardized central block units 30 and 80 can be attached to them. This arrangement enables the flow from the main channels to be diverted to any desired side of the central blocks. The flow from a central block unit to other units in the branch arrangement is determined by the diversion features of the special valve attached to the central block, the flow is diverted to the sides of the central block, t> ο the flow is always returned to the double channels of the line units, so that the flow can be diverted to either direction by means of appropriate valves, the te ic required for a particular hydraulic control system

Figo3 represents a two-dimensional drawn in a plane Flow diagram for the three-dimensional arrangement of the hydraulic control system according to J? Ig »1. In Fig.3 can be the flow of liquid from which is the source of pressure hydraulic pump 66 can be tracked from across the entire integrated distribution arrangement showing the typical loads in the form of a hydraulic motor 108 and a working cylinder 106 supplies a regulated flow. A high pressure channel 110 connects the pump 66 at inlet 110-A to the hydraulic control system 20, while a J \ liederdruckkanal 11L The flow is returned to the storage container 74 via the outlet 112-A. The liquid therefore flows through the manifold block arrangement 42 in standardized two channels and from there out to the two branch arrangements 130 and 1.52, as already described.

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As can be seen from Pig.3, the liquid entering through the 'high pressure channel'110 via the inlet 110-A flows through the series side bloom unit 58, through the' normal .. * spacer block 56 and then to a first manifold block An this In place, the flow in the high-pressure channel 1.38 from an adapter block 78 to a smock block 80 of the branch arrangement 13k; diverted. At the central block ÖO, the flow is diverted by a four-way valve 82, which is attached to one side of the central block 80 according to the illustration 138 of a one-third spacer block 96, which is located in a side arm of branch 132. From the spacer unit y6, the flow continues in a tarallel side block 9-8, which carries a pressure-compensated flow control valve 100 and a non-return valve plate unit Azo- Me flow then prevails valve unit 100 into branch duct 140 and through passage 140-A leading to working cylinder 106. The liquid flowing through the pressure-compensated flow control valve 100 to the channel 100 is blocked in the channel 140 at the point 158 which is provided in one of the channel-forming parts of the one-third spacer block 96 «

This shows that the original AtrÖmung in two channels in branch 132 from barrier 158 into a single one Flow to the working cylinder 106 is converted. Will If the pressure fluid is passed through the channel 1.40 into the piston end of the working cylinder 106, the fluid flows out the working cylinder 106 at the other end via the passage 144-A and is redirected to a branch at center block 80, which side arm from the one-third spacer blocks 84 and 86 and the parallel side block 88, as from Figures 1, 3 and 4 can be seen.

The side block 88 carries a normal flow valve, which is set up as a compensation valve 90, and that on the power cylinder 106 maintains a back pressure as a function of a control device 92 and a shut-off valve 94,

that the flow from the working cylinder 1o6 to the jiiittelblock 80 locks. The flow out of line 144 and out of the sidearm channel 161 (ü'ig.3) passes through the compensation valve 90 to the other side arm channel 142. It is pointed out at this point that in the one-third spacing block 84 a Lock point 160 for the channel 144 is provided. This blocking point prevents the flow from the line 144 over through passage 156 flows back to the center block. The reflux must therefore return through passage 142 to passage 154 of the four-way valve 82 on the smock block 80. It should also be mentioned that when establishing a connection between the Passage 150 with passage 152 of four-way valve 82 ™ by adjusting the valve accordingly, also the passage 154 communicating with passage 156. The reflux therefore takes place from the passage 154 to passage 156 and Via the branch channel 140 to the low pressure collecting channel 112 «on this Place the return flow through a return filter 62 or passed through a return line bypass pressure valve 64 and through a line 112 to the reservoir 74. A blocking point 166 in series side block 58 prevents direct flow to the reservoir around filter 62 and bypass pressure relief valve 64.

From the flow diagram shown in Figures 2 and 3 for the branch arrangement 132 it can be seen that after the J) diversion of the pressure fluid directed to the line 150 of the four-way valve 82 to the outlet 154, and after the passage of the valve 82 from the four-way valve 82 with the passage 156 has been connected, there is a reverse flow to the working cylinder 106 via the passage 142 and the shut-off valve 94 in the compensation valve 88 in a two-channel arrangement, the working cylinder 106 being operated in the opposite direction with the

■ Consequence that the flow through the branch channel HO in the parallel side block 193 to the pressure compensated flow control valve and through, the check valve unit 102 returns to the branch passage 138 and to the passage 152 of the four-way valve 82. The valve connects the passage 152 with the passage

• 156 so that the liquid flows through channels HO and 112 to the

10 * 815/1314

ORIGINAL INSPECTED

■ _: 2U4UG32

. . -.15 - ■■ .- ■ ^"■:;.

Return line filter 62, to bypass relief valve 64 in Series side block 58 and back to reservoir 74 flows

The entire branch arrangement 132 therefore exercises a control and Regulation function, with the four-way valve 82 attached to the central block 80 providing a bypass for the pressure and the Backflows from the manifold assembly 42 to the working cylinder 106 caused and in this cylinder and its load over the pressure and the flow in a precisely defined manner regulates the entire line unit arrangement of branch 132 »

With reference to the Mg «3, the inflow and outflow in the first branch arrangement 130 will now be described. The pressure duct 110 supplying branch 132 just described continues through the normal spacing inlets 52 and 50 and through the parallel side block 44 to the manifold block 36. A parallel flow is normally maintained in the two manifold ducts 110 and 112 of the parallel side block. However, a safety valve 46 is attached to the parallel side block 44 (ü'ig.i), and if for any reason the pressure in the pressure channel 110 rises above the value to which the spring in the pressure relief valve 46 is set, then there is an outflow from the Pressure channel 110 to return line 112 and to the reservoir, the pressure being reduced. In normal Jöbetrieb, however, the liquid becomes with increasing pressure via the ^{adapter block 34 to the} branch arrangement 130 and then to Λ

a second central block 30, on which a four-way directional valve 32 is attached, which is a diversion of the pressure fluid to opposite sides of a typical load in the form of a hydraulic motor 108. Will if the motor is operated in particular in the forward direction of rotation, then the pressurized fluid in passage 172 is directed to passage 174 of four-way valve 32 while the return flow from the engine 108 is passed from the passage 176 to the passage 178, which is connected to the branch channel 136 and this with the discharge channel 112 in There is a connection that leads back to the reservoir 74.

As can be seen from Figures 2 and 3, the flows Pressurized fluid from valve passage 172 to passage 174

10 9815/1314 -. "■: ■■ - - -ORIGINAL I

to idotor branch passage 134 and via passage 134-A to hydraulic motor 108, the motor being driven in the forward direction of rotation. The liquid flowing out of the lotor 108 is then taken up via the passage 136-A on the branch channel 136 and returned to the valve passages 176 and 178 and then passed via the Zegig channel 136 and the fluid conduit channel 112 to the storage container. Under certain operating conditions of the motor 108, Z ₀ B ₀ during stopping or braking of the solder, the pressure in the line 134 rises to a higher value, that of the cross relief valve 28 attached to the larallelseitenblock 26 from the branch passage 134 to the branch passage 136 due to the setting If the motor is operated in the opposite direction of rotation, a cross relief valve 24 attached to the upper parallel side block 22 diverts the pressure fluid from the branch channel to the branch channel 134 when the pressure in the line 36 exceeds that of the control device 38 exceeds the set value.

From this it can be seen that the cross relief valves pressure regulation functions in parallel with the hydraulic plunger exercise on the side arm channels 13b and 134.

can never be seen from FIG. 3 are in the middle block 30 the channel blocking points 170 and 168 are provided, which block the flow in the double channels, whose flow around the four-way valve 32 should be prevented.

Likewise, the locking points 126 and 164 in the Littelblock 80 in the branch arrangement 132 prevent the four-way valve 82 from bypassing Flow of liquid,

Reference is now made to FIGS. 9-32, in which the various standardized line units according to the invention shown are those used to program the various busses, branches and side arms of certain control systems can be used in the same way as the control system 20 according to FIG. "1"

, / ie shown in Figures 9 and 10, has a as The whole of the standardized collecting line unit labeled 36 “54 a base flange 13 with the bores 14, with the help of which the manifold block can be attached to a base.

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ORIGINAL iWSFECTED

2U4U932

In general, any number of manifold blocks can be used along with other units such as parallel side blocks 46 and Ivornial spacer blocks 50 for assembling an array of Units are used, the manifolds and 112 can be put together with the required length, as shown in Figures 1-7.

As can be seen from Figures 9 and 10, the channel-forming Passages 55 and 57 in all manifold blocks to 54 provided with standardized threaded holes 15, which receive the sealing pieces 120 (, Fig.5 and 6), the ones Seal places where the busbar blocks 36 - 54 with other line units are assembled, such as shown in Fig.1, the connection of the busbar block 36 with a parallel side block 44 shows.

Standardized screw plugs are also screwed into the threaded bores 15, as shown at 91 in FIG. The threaded bores 15 also serve to receive a standardized, non-illustrated matching pieces, which connect to an outer pipe can be manufactured, which leads to remote loads, such as _e B _o by the pump 66 shown, or to a hydraulic motor 108 or a Working cylinder 106, as shown in FIGS.

The Saiiimelle itungsblock shown in Figures 9 and 10 36 - 54 is still with the channel-forming vertical passages 55 and 57, the parts of standardized branch channels form any number of branch arrangements, such as the branch channels 134 and 136 in the branch arrangement 130 of the control system according to FIGS Passages 55 and 57 are provided with standardized threaded holes 15, in which the sealing pieces 120 or, if necessary, the Very dust plugs 91 are dusted.

In the figures 11-13 there is a further standardized unit in the form of an adaptation block designated as a whole with 34-78 shown, the one at the bottom 181 with the top 183 put together one of the already designated busbar blocks © can be. The adaptation block 34 »78 has di®

. '■.'. ■■■ ■ 1 ÖS 8 1 S / 13 14 .ORlOlNAl.'iNSFEGTEp

Base flanges': ~ 1 with the unthreaded holes 151 through which the bolts 146 (jJ'ig.1) and passed into the threaded holes 155 (FIG _o 9 and 10) on the other top surface 185 of the manifold block are screwed 36-54.

As can also be seen from FIGS. 11-13, the Adaptation block 34-78 with two vertical passages 59 and 61 standardized width and with standardized spacing from each other, the Channel parts of the branch channels form, as shown at 134 and 136 in Figures 1-8, which passages also with the standardized threaded holes 15 are provided.

The manifold block shown in Figures 9 and 10 is also provided with four horizontal through bores 16, through which the standardized fastening rods 122 are passed are, as shown in the two different arrangements of Figures 1-8. Furthermore, the one shown in FIGS. 11-13 The adapter block shown is also provided with four through-holes 16 at a standardized distance and with a standardized width, through which the standardized branch distribution rods 116 are passed, as in the various arrangements in the figures 1 -8.

It should be noted that the bores 16 receiving the rods are provided with recesses 17 for the nuts 118 which consist of the embodiment shown in Figures 1-8,

In FIGS. 14 and 14 ~ A , a parallel side block P1-P2, 22-36-88-44 is shown, with which certain parallel flow paths can be established, as can be seen from the diagram according to FIG. 3, and as at 22, 26 , 88 and 44 shown »

14 and 14-A, the parallel side block P1-P2 is provided with the parallel passages 67 and 69 with a standardized width and standardized spacing from one another, which form parts of the various collecting and branch ducts. The passages 67 and 69 are provided with the standardized threaded bores 15 and with the already mentioned deflections 17

1 0 d 8 1 β / 1 3 U ^{0RIGlNAL! NSPECTED}

blockes Pi _ P2 is used to accommodate the standardized flow valve units 222, which perform several functions, such as those later Relief valves 24 and, which are still to be described in detail, can be seen from FIGS. 14 and 14-A that the parallel side block is also provided with passages P1 and P2, which are connected to certain passages of the universal valve units can be.

Figures 15 and T5-A show another parallel side block P1 - P3, which is the same as the parallel side block P1 - P2 according to FIGS. 14 and 14-A with the exception that the passages Pt and P3 are arranged differently, which are the channel-forming passages 71 and 73 connected to a valve mounting surface 189. J This particular arrangement allows the exercise of various Control and ßegulierungs functions of the universal valve in relation on the two-channel arrangement.

FIGS. 16 and 17 show a standardized one-third spacing unit 86 which is free of locking points and which is used to determine the spacing of further line units from one another, as shown in FIGS. 1-8. As can be seen from FIGS. 16 and 17, this spacer unit has the continuous passages 63 and 65 with a standardized width and with a standardized spacing from one another, which form parts of the main channels of the control system. The distance unit is further provided with the holes 16 and the openings 15 for receiving the standardized interfacial _Λ seals serve 145 and 249 -125, provided the passages ^ for preparing compounds either with the passage 251 or passage 253 of a normal center block 80-30 by Figures 26 and 28 «

Figures 31 and 32 show a modified one-third spacing unit 84 - 96 with a blocked passage. This unit serves as a spacer for further line units, as can be seen from FIGS. 1-8, however, differs from that above-described one-third spacing unit 86 thereby, that a passage 53 is blocked. There is another one One-third spacing unit (not shown) is available, in which both passages 51 and 53 are blocked.

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FIGS. 29 and 30 show a further standardized line unit in the form of an ijormal distance unit 50-52-56, which is shown in FIG the typical control system as shown in Figures 1-8 is installed. This unit has the channel-forming passages 75 and 77 with the threaded holes 15 and the Ivionta & e channels 16, which are ready have been described. It should be noted that the Thickness of the normal spacer block 50-52-56 between surfaces 245 and 247 three times the thickness of the one-third spacer units 84-96 and 86, which have already been described.

Ss it is pointed out at this point that all line units between the end faces of their thickness are provided with channels, and that the thickness is either a whole quadruple or a fraction of the thickness of a li'ormalabütandseinlieit 50-52-56 according to Figures 29 and 30 is »This measure enables a standardization of the mounting bars 122 and the branch mounting bars 114, so that only a small number of standardized Lengths need to be provided which correspond to whole multiples or a fraction of the normal block lengths.

FIGS. 18 and 18A show a further modified parallel-side block P2-P3, which is similar to the parallel-side blocks already described is the same with the exception that the passages P2 and P3 are arranged differently on the side 191, which Lurci-leaves with the normal ones running lengthways channel-forming passages 09 and 67 are in communication, the Form parts of the main channels of the line units. This parallel page block enables the programming of other special ones Control functions in a hydraulic control system.

Figures 19 and 19A show a further modified (three-way) parallel side block P1-P2-P3, with the further special Connections can be made as will be described later. In this parallel side block, the channel-forming passages 71 straight through the block while the other channel-forming passages 7 "> and 93 as a result of one Blocking point in the block have no direct connection with each other but with the inner arids of the passages P1 and P2, which are connected to a programmed Ve.util unit at the curses 1 ^ 3 can be connected.

1 0 9 8 1 5/1 3 1 h

GRiGiNAL INSPECTED

. ■ - 21 -

With all the described versions of the parallel side blocks There are threaded holes 187 on the valve mounting surfaces into which screws are used to mount the various valves' can be screwed in. In this case, too, are the distance and the thread of the threaded holes 187 standardized so that they match the corresponding mounting holes on the other Units fit together »

In the figures 20 and 21, a series side block 58 is shown which, in the installation according to Figure _4, 1 - 8 can be used "" üiin such series side block is generally used to .Herstellen of through-connections between the dual channels ZOB ₀ for attaching the filter adaptation unit 60, which is shown in the control system.

As can be seen from Figures 20 and 21, the Series side block 58 has a normal channel-forming passage 195 that extends completely through the block, as well as two channel-forming passages closed at the ends 141 and 197, those with the perpendicular channel-forming ! Passages 43 and 45 are in communication. In this case too are all kijnal-forming passages with threaded holes provided that with the relevant holes on the other Units fit together, as well as with the connecting rods receiving through bores 16 and the recesses 17ο

Figures 22 and 23 show a four-way valve adapter block 45 which is provided with a number of through-bores for the various four-way valves, such as Z ₀ B _{0 shown} at 32 in Figures 1 and 8, a smaller four-way valve 32 being used, the adapter block 45 is attached to a normal middle block, like ζ _o B _a at 30 in the Figo! shown, which middle block will be described later

The four-way valve adjustment block 45 has a number of Connecting passages 117, 119, 121 and 131 as well as the Passage © 125 »127, 129 and.131, which are threaded are »in which the fastening screws for four-way valves screwed in as shown at 32®

From Figures 22 and 23 it can also be seen ^ that the

^{10981B / 13U} ■■■■■ '■

OBlGMAu

2UAi; vi

Four-way valve adapter: -: solution block 45 is not drilled on the side ! Passages 109, 111, 113, 115, 105 and 107 provided with openings 261, 253, 265 and 267 on the rear of the adapter block 45 communicating, in turn, with the four normal openings 29, 31, "33 and 35 on the normal gown block units 30 fit together, as can be seen from Fig. 27 is"

The four-way even adjustment block 45 also has the normal Mounting holes 116 by means of which the unit can be attached to a gown block, as shown at 30. The side passages 109, 111, 113, 115, 105 and 107 are usually provided with small sealing plugs on the Outside of the block.

The filter adjustment block shown in Pig. 24 is In FIG. 1, shown installed at 60 in the control system. The filter adapter block 60 is intended to accommodate a special Filters on the side 199 of a series side block 58 according to FIGS. 20 and 21 enable. To this end, will the filter adaptation block with the side 215 applied to the side 199 of a series side block 58. The blocks are from Screws held together by the holes 16 on the adaptation block passed through and screwed into the threaded holes 217 on the serial side block 58 »

, / ie can be seen from FIGS. 24 and 25, the Passages 219 and 221 which open on the side 223 of the filter adaptation block 60 are connected to a normal filter 62 can be set as shown in Figures 1-3.

Referring to Figures 26-28, a normal center block assembly 80-30 is shown as a flow diverting and valve mounting assembly can be used. The channel-forming passage 133 stands with the passage 33 on the valve mounting surface 2 55 in connection. Furthermore, the passage 185 is in communication with the passage 19, while the passages 85 and 37 with the passage 31 and the passage 29 with the passage 35 communicates. It can be a winning one Passage 275 can be provided, which is either connected to the passage

1 0 9 8 1 5/1 3 U ORIGINAL INSPECTED

let 33 and 39 connected or with a not shown Stopper is provided, which separates the passages from each other * _

The center block assembly 80-30 is on sides 259, 257 and 277 provided with threaded holes into which the threads of the fastening rods 114 screwed in, as on. "Best from the 7 can be seen. Furthermore, the threaded holes 15 are provided, with the help of which connections are established to other units can be. ·

The gown block unit 80-30 shown in FIGS. 26-28 has the valve attachment surface 255, which either fits together with a larger four-way valve 82, as shown in the M Figol in branch 132, or with the already described four-way valve adapter unit 45 according to FIGS. 23, which can be used for smaller four-way valves such as valve 32 in branch 130.

When using the adapter unit, the passages are open 261, 263, 265 and 267 opposite the openings 29, 31, 33 and 35 and are connected to these. For fastening the four-way valves and the adapter pieces for diase are threaded holes 233 provided.

As can be seen from FIGS. 26-38, bores 223 and 229 are provided, into which pins for aligning the four-way valves and their adapter blocks are inserted, such as ύ ζ. Bο on the valve adapter block 45 and on the valve mounting surface 255

The passage 221 is in connection with the passage 251 from the side 259 for a signal flow or for the discharge <, for the same purposes the passage 231 is in connection with the passage 253 on the side 257. Both passages 251 and 153 are tapped and adapted to receive sealing rings so that either external signal flow lines (not shown) can be connected or, in other cases, normal units can be attached to sides 257, 277 and 159 of the center block 80-30 so that these passages 251 and 253 are sealed or with

V098V5 / 1 31 Ϊ

■ ORIGINAL INSPECTED /,

2U4Ü ■■■■ '-Vl - 24 -

other passages e.g. with the passage 249 on the one-third abs Stand unit 85 in which i'igures 16 and 17 are connected can.

It should be noted that in Figures 4, 5 and 7 on valve mounting surface 2 55 of milblock 80-30 certain passages of lesser importance and the holes for the alignment pins have been omitted, which are described in the Pig. 27 are shown.

It is further pointed out that in all line units the interface openings 15 are offset from the cement in relation to the bores 16 for the connecting rods so that the protruding seals 120 act as alignment pins and seals. This prevents the different units from being reassembled in reverse. At the same time it is possible to assemble the units so that the main channels such as 110 and 112 or 134 and 136, normally connected to a, d _o h _o, it Wirden "polarized" composite, or the main channels are inversely connected to one another, that there is a "reverse polarization". For example, the parallel side blocks 22 and 26 in the branch arrangement 130 (ü'ig.1 - 8) can be put together in such a way that the unit 26 brings about a reversed polarization with respect to the unit 22 and the middle block 30 descriptive function of the cross relief valve is performed.

The flow diagram in Pig. 3 shows an arbitrary one selected "reference starting point" on the manifold unit 54 " At this point normal polarity exists in the main manifolds 110 and 112. For other units that have the above reversed polarity, this is indicated by a "R" marked in the Pig <> 3.

Each normal line unit is provided with arrows 291, of which e nige arrows on one side of the unit are located at the Zwischenflächln the flow path _o A normal composition (polarized) of the Iviahei tei: is when all the arrows on the same side of each unit are located.

1 0 9 8 1 5/1 3 U ORIGINAL! NSPECTED

When inserting a unit in reverse (reverse polarization) are the arrows on the opposite side of the arrangement '· A "polarized arrangement" "begins with arrows at the" output unit ", e.g. at a" middle block "- or at a "manifold block" etc.. which units act as reference points »(The reverse polarision is used at an IMG flow strip station indicated by an (R) in the upper center of the station.)

Hereinafter, the safety valve unit 46 will be described, the Indians control device according to the S ¹ ₀ 1 Ig, in the .figuren 33 - 38 is shown in detail and in Fig 51 _e schematically. The unit 46 represents a typical universal valve unit which can act as a safety valve between the pressure and drainage channels 110 and 112 of the collecting line arrangement 42 Sainmelleiteranordmmg 42.

"/ Ie from the]? Igo5T can be seen, the pressure channel 110 is in the busbar assembly 42 with the inlet 244 of the safety valve 46 in connection, while the drainage channel 112 of the Arrangement 42 with the passage 238 of the safety valve 46 in FIG Connection.

It should be noted that the safety valve 46 in FIG. ¹ Ig ₀ Si represents a programmed combination of a universal flow valve unit 222 with a universal signal flow valve unit 228.

The schematic representation of the flow valve unit 222. in Pig.51 shows the selected programming of the various valve piston springs, passages etc. in the universal flow valve unit according to the invention.

The valve unit shown in section in Ilg®38 has a housing 180 with a valve bushing 182p which contains a valve piston 184. This piston and the associated valve elements together represent the universal flow valve unit, which can be programmed accordingly for all flow and diversion conditions in a hydraulic control and control system. On the valve seat stored in the bushing 182

109815/1314

- ■ ■ ■■ "ORIÖSNAL INSPECTED

1 \} U {\ .; Vl

piston 184 acts a spring 194 via a spring adapter 196 which is slidably mounted on a piston boss 198 and is arranged between a shoulder 197 on the socket and a shoulder 201 on the spring housing 192. ..seen from Fig.38 is, the spring 194 pushes the piston 184 in the socket 182 inward until the spring adapter 196 engages the top iind of the socket. Aa opposite end of the piston a return spring adjustment member 226 is arranged, the rests on the left end 295 of the piston 184. A spring 230 acts on the adapter member 226 and presses the piston against it the assembly comprising a spring and a spacer at the opposite end. The spring 230 is supported on an im Housing arranged from plug 232, wherein the piston 184 is held in a normal position, in which all the passages are closed with respect to the socket, as can be seen from Fig.38.

The spring adapter 196 slidably receives the piston boss 198 such that when fluid pressure is exerted in the chamber 348, the piston 184 moves to the left against the force of the opposing return spring 230, the piston boss 198 acting as a guide for the spring. The spring and the adapter 196 do not move to the left but remain in their position (ib'ig.38) when the piston 184 moves to the left and are guided by the piston attachment 198 and centered. Due to this arrangement, the piston 184 can be moved from the normal division to the left only under the action of hydraulic pressure and not as a result of the mechanical action of the spring 194.

Conversely, if hydraulic pressure acts on the opposite left end 295 of the piston 184 via the chamber 346 and the passages 2 ^ 4 in the spring adapter 226, the regulating spring 194 and the adapter 196 are compressed to the right , bia the adapter 196 against a shoulder 201 abuts the spring housing 192.

It can be seen from this that the piston 184 is mounted displaceably between two springs, the regulating spring 194 being stronger than the return spring 230, which two

10981 5 / 13U

ZU4U: Vl

spring the cones 184 centered in the socket 182 in the normal Holding position "" does not, however, involve hydraulic pressure on one of the two ends of the piston 134, the piston is pressed against the relevant spring, while the piston returned to the initial position when the pressure is released will ο

As can be seen from FIGS. 38 and 51, the signal flow valve elements for the safety valve 46 are arranged in a special valve section 228 and comprise a signal piston 276 in a socket 278 which is arranged in a housing 203. The arrangement comprising the piston and the bushing is held in the housing by a spring housing 280 g (j! ¹ igo38) which rests against the bushing 278 at the end 205. The signal piston 276 is provided with an adapter member 207 which is attached to a spring bearing member 270 mounted ball 272 is applied. A signal flow regulating spring 266 rests with the upper end on a second spring bearing member 268, which in turn rests on a ball 2b4 on which the shaft 260 acts. This shaft 260 is provided with a thread 209 and with an adjusting knob 256 which is held at the point of use by an adjusting screw 258. A locking nut 262 is also provided.

The signal piston 276 is subject to the action at the left end 352 of the liquid in chamber 350, and an increased pressure in this chamber acts to regulate the signal flow. spring 266 at the right end of the piston. If the pressure rises above the pressure to which conveyor 266 is set the piston is moved to the right, where different passages to be described can be connected to one another.

Fig. 51 shows the safety valve in a schematic representation 46, which perform multiple functions and for different Tasks can be set up and programmed. For this purpose, passage elements and plugs can be installed or removed. The symbols used are explained in Fig. 51 ~ A.

Fig. 51 shows the special programming of the units

O. INSPECTED

/ IMU - · ■■: '; ■ / _

as a safety valve 46 and the special arrangement and the flow paths using the symbols according to Fig. 51 ~ A. The flow enters the passage 244 via the main channel and is via the line 368 to the recess 218 of the socket and piston assembly, pressurizes annular piston channel 216 and further becomes end 295 of the piston 184 via the passage 376, the passage opening 320 and the check valve 226 bypassed, which is under the action of the return spring 230.

The pressurized fluid also goes to chamber 348 on the opposite side End of the piston 184 via the recess 218, the lines 382 and ^ 80, via the openings 328, 302 and 308 and passed through the socket recess 372, as later is described, the piston is therefore subject to the action of the static pressures acting at both ends as long as certain control flows are not present, and the piston remains in the normal closed position, which is determined by the spring 194 is determined o

can be seen from Fig.51, the hydraulic fluid also passed through opening 318 and passage 296 to end 352 of signal piston 276 on chamber 350 »The opposite The end of the signal piston 276 is controlled via the recess 364, the passage 2 52 with the opening 312 via the opening 324 in the passage 252, via the valve outlet 238 and the main drain channel 112, which leads to the storage container 74 »

As can be seen further from FIG _o 51, the spring on the signal piston 276 acts against the pressure acting on the piston end 352 hydraulic pressure. With the pressure acting on the piston end 352, the signal piston is moved against the force of the spring 266, whereby certain passages are opened and a signal flow for the control effect of the piston 184 is initiated in the unit 222 to be described.

In FIG. 51, in particular the two pistons 184 and 276 shows in the normal closed position, the effect of the safety valve when the pressure in the Samtuelkanal increases 110 to be prosecuted. The increasing pressure acts on that

1 0 9 8 1 5/1 3 1 / * CHiCiMAL INSPECTED

■ .. ■■ ;; ■■ - 29 - ■ · ■. ■■ -. ■ .. ■■■ ■■■■■■■■. " ^:

End 352 of the signal piston 276, and if this pressure is above ■ the value increases beyond that of the selected setting of the Corresponds to spring 266, the signal piston begins to move in a ' The direction in which the spring is compressed. Shortly before reaching the pressure at which the piston begins to move, the passage 296 via the chamber 350 with the annular piston channel 356 connected to the front piston throttle web, which channel with the passage 294 and therefore with the passage opening 316, the opening 306, the recess and with chamber 348 at the end of piston 184 in communication stands. There is therefore a dual flow path leading to chamber 384 at the end of piston 184, thereby ensuring that the static pressure is equal to the pressure at the beginning of the control effect is. When the signal piston 276 moves down due to the increase in pressure, the communication of the chamber becomes 350 to passage 294 via annular channel 276 on the piston closed so that the piston is disabled for further work. The from line 380 through the openings 328 and 302 to the passage 314 directed fluid pressure also through the recess 360 and the annular piston channel 362 to the throttle web 213, which is in the normal Closed position with respect to passage 364 and the low pressure discharge line 252 is shown, which leads to the reservoir 74 "

If the signal piston 276 continues its downward movement with the increase in pressure, the throttle web 213 begins to open the passage 364, so that a control flow begins to flow through the passage 162 and through the opening 314, so that at the openings 302 and 328 A pressure drop is created across passage 380. This pressure drop is essentially at the opposite ends of piston 184, end 295 being essentially line pressure and the other end 248 being acted upon by a reduced pressure that is different from that in line 314 The prevailing pressure is determined when a flow occurs at the control orifices mentioned. "Under the action of this pressure drop, the piston 184 begins to move against the force of the spring 194."

108815 / 13U cmaHAL inspected

21MÜ982

- 50 -

The passage 216 having the highest pressure is then connected to the recess 208 opened by the throttle web 215 when the " Piston continues its opening movement, so that the liquid from the main channel 110 via the passages 368 and 216 to the recess 208 to the passage 252, to the opening 238, to the main return channel 112 and thus to the storage container 74 flows.

The signal piston 276 should therefore move the working piston 184 into one as a function of the pressure in the collecting line duct 110 move modulating open position. If the pressure continues to rise significantly, the piston effects lead to a further one Opening movement of the working piston 184, so that, if necessary, the entire flow into the .Low pressure passage 252 and so that it is directed to the storage tank at the operating pressure that is determined by the signal piston 276. It is therefore the entire Flow is removed from the system and the pressure in the channel is limited. Conversely, if the pressure starts in the manifold 110 to drop below a predetermined value determined by the setting of the signal spring 266, then the signal piston begins to move in a modulating direction towards the normal closed position, so that the control flow at the opening 302 shrinks. This has the consequence that the pressure drop acting on the working piston 184 is lower so that the spring 194 returns the working piston 184 to the closed position in a modulating manner then decreased from the recess 218 to the recess 208 on the throttle web 215, so that the valve begins to close and returned the system to its original pressure and flow condition

A further decrease in the pressure, which is determined by the signal spring 266, ultimately leads to an opening movement of the throttle web 211 of the signal piston 276, so that the chamber 350 is connected again to the annular piston channel 354 is set so that the pressure fluid via the passage opening 316 and the opening 306 quickly to the lower end of the Working piston 184 is directed as it was before the pressure increase. A rapid pressure equalization takes place on the Working piston so that the springs move the piston quickly into the

ORIGINAL INSPECTED

10981 5 / 13U

normal closed position can move,

Never shown in Mg.51, different openings and passages serve the purpose of dampening and improving the speed of response of the various elements in the universal arrangement of the passages in the housings of the units. 322 Z ₀ B. influences the opening, the flow from the end 395 of the working piston 184 from when this is returned to the normal closed position, ·, since the flow can not return from the end 295 of the piston via the check valve 226 to which the spring 230 acts so this flow is forced to flow back through port 322 to the main pressure line. This slows the return of the piston and stabilizes the flow in the flow unit. A also causes the opening 318 in communication with the chamber 350 at the end of the signal piston 276 to slow down the flow, since it acts on this piston.

Furthermore, certain vibrations or pulsations occurring in the pressure line are reduced or prevented by the opening 318, so that they cannot act directly on the end 352 of the signal piston 276. This creates a stabilization and prevents chatter and unstable operating conditions during control operations. Likewise, the opening continues 306 of the outgoing flow from the end of the working piston 184 opposes a high resistance when the working piston has to move quickly into the open pitch through the opening 306 outflowing fluid would normally press the ™ A flow are combined at the opening 302 and through the Signal piston 276 on throttle web 213 have an effect if this is in the open position. If the flow is too strong, the working piston 184 would be moved too quickly into the open position and cause excessive vibrations; however, the orifice 308 limits the speed at which the power piston 184 can be moved into the open position as a function of the signal piston 276.

The opening 306 is essentially a similar damping opening represents, which together with the opening 318 the speed ■ determines the speed with which the liquid enters the chamber 348

109815/131 Λ

SMSPlCTED -

21MU982

can flow in at the end of the working piston 184 _o However, in this case the direct pulsation level at the end of the signal piston 276 is not influenced as in the case of the opening 518.

After the symbol 4 in Fig. 51-A, the one in Pig »51 shown opening 328 provided with a wire insert and has the feature of a larger opening with the wire insert intended to filter out some particulate matter. This opening represents an annular opening with which there is less risk of being struck by a single dirt particle becomes clogged. A passage with a round or a single hole would be sensitive to a single foreign matter particle. This opening 328 filters out individual chips to a certain extent.

As can be seen from FIGS. 38 and 51, the chamber 188 has an unusually large volume at the end of the working piston 184, which is exerted on the piston in the event of rapid pressure changes acts capacitively or resiliently.

When the throttle web 211 from the action of the pressure on the signal piston 276 has been moved into the closed position, there is a flow path with a high Y / resistance for the Pressurized fluid from line 368 to recess 372 and the chamber 348 at the end of the piston 184. The liquid cannot pass through such a flow path with a high resistance reach the recess 372 very quickly, so that the one acting on the working piston 184 at the opposite end 2y5 Pressure seeks to move the piston downward against the capacitive chamber 188, removing the liquid contained in the chamber is pressed together. In this case, the working piston 184 moves more rapidly into the open position than normally would be possible without such a capacitive and resilient chamber 188. This is done at a relatively high frequency and is limited by the openings already mentioned. The effect achieved is intended to improve the quality of the control because, due to the speed of the determination of the pressure in the system, the piston quickly moves into the open position is movable.

ORiGIMAL INSPECTED

109815 / 13U

2U4i! I: 82 - 33 -

With reference to FIGS. 1-3, 44-49, 50 and 54, the mode of operation of the pressure-compensated control valve unit 100 and the shut-off valve unit 434 will now be described, which two valve units are shown in FIGS. 3 at 100 and 434. This arrangement with the two valves regulates the flow to the cylinder 106 from the branch duct 138 of the branch arrangement 132 from ο The check valve unit 434 shown in FIGS. 49-50 and 54 is arranged between the side block 98 and the pressure-compensated control valve unit 100, as shown in FIG. 1 can be seen, and the flow is directed from the pressure channel 138 to the inlet 474 of the check valve 434 and from there to an inlet 244 of the valve unit 100. ä A check valve 101 and a plug 454 prevent the liquid from flowing through the opening 450 (o'ig _o 50 and 54). The liquid flowing to passage 220 is further directed to the upper end of piston 184 via line 376, passage 320 and through check valve 226 so that the pressure acts on side 295 of working piston 184. The liquid also flows through the opening 416 and through the opening 414 to the socket recess 210 through the annular channel 204, the opening 202 and the line 242 and thus to the passage 478, which is in communication with the run-up channel 140 of the branch arrangement 132, so that the Liquid is passed to the piston rod side of the working cylinder 106 (Fig _o 3). The pressure fluid is also conducted from the other side of the passage 416 (FIG. 54) to the passage 410 and through the opening 412 to the end 348 of the working piston 184 greater pressure drop seeks to move the piston against the spring 194 which has held the piston in the normal open position in which the passages 210 and 210 are in communication with one another. The fluid flowing through the passage and working piston 184 is throttled at passage 210 as a result of the pressure drop across passage 416 against the force of springs 194 and 230, which try to keep the piston in the normal open position Reason, e.g. as a result of a

1ÖÖ81S / 1314 '' original, nspected

^ U 4 I j ΐ 2 - 34 -

pressure drop occurring at the passage, the piston throttles the back pressure at passage 416 and maintains a reduced pressure at the passage relatively constant flow upright, so that the arrangement represents a pressure compensating flow control device.

The check valve unit 434 shown in FIG provided with passages blocked at plugs 454 and 456, thereby forming a backflow path which from passage 478 to passage 474 when the flow reverses. The flow is from the working cylinder The branch channel 140 leading to the passage 178 is passed through the opening and the shut-off valve 102, so that the liquid is directed to the Line 474 is conducted, the spring 442 acting on the shut-off valve 102 opposing only a very slight resistance. A reverse flow is therefore directed in such a way that the pressure-compensated control valve 100 is unimpeded by it is bypassed.

As can be seen from Fig. 54, the pressure-compensated Flow control valve 100 has an opening 322 which acts as a damping opening and the speed of movement of the piston 184 is regulated for reasons of stabilization.

It should be noted that the two valve units described above and shown in FIGS. 33 and 48 represent examples of different programming of the universal valve unit, and that certain main valve elements are identical and standardized so that different valve units can be programmed optionally. The following components are the same: the piston 184 _t, the bushing 182, the spring adapter 196, the spring 194 »daa spring housing 192, the non-return or shut-off valve 226, the return spring 230, which components can all perform several functions in the universal flow valve unit so that a variety of modulation and flow redirection functions can be programmed "the various openings and passages, springs, spacers and other normal valve components are used on a scheduled basis, so that the system chosen different valve functions can practice. It should be noted that beige in the figures

1 0 Ö Ö 1 6/1 3 U ORIGINAL INSPECTED

48 and 54 pressure compensated flow control valve shown 100 of the working piston 184 from a spacer 404 into a normal open position is offset, so that normally there is a connection between the passages 210 and 202 via the annular channel 204 on the piston, while a pressure moves the piston against the force of each 194 and 230 into the closed position »

As shown in Figures 3B-A and can be seen 48, the "spacer was 406 is inserted so that the piston is set 184 to the left, in contrast to its position of Fig * 38-B _T in which the first-mentioned position of the piston The spring * 230 is compressed, the piston 184 but can still execute ä further movement to the left, wherein the IHihrungsteil 198 still remains in the spring adjustment member 196, the spring 194 to the right against the FedeTanpassungsglied 196: pressing end of the sleeve 182nd If a pressure is exerted on the piston 184 which seeks to move the piston to the right, the pressure is transmitted to the spacer 406, which in turn displaces the spring adapter 196 to the right, whereby the spring 194 is compressed »The spacer % 9 € initiates a movement of the. piston back to the inside 201 in the spring housing 102 before the movement of the piston is terminated. It can be seen from this that the described arrangement enables the working piston 184 to be programmed for a normal open position only by inserting a simple spacer element 406 while the control pressures acting on the end of the piston move the piston in the socket 182 into the closed position, in which the corresponding passages are closed. The arrangement is such that the spring 194 at the right end of the piston 184 (jrigo48) is stronger than the return spring 230 at the left end of the piston, which return spring 230 transmits the force to the piston 184 via the spring adapter 226 and the piston stop 226. The pressure acting on the right end of the piston 184 does not compress the return spring 230 until the movement of the piston is terminated by the spring adapter member 226 when the latter rests against an inner shoulder 97 on the housing 180-A.

1098 15 / 13H ^ _£

1 \} U \\ ■, 1 - 36 -

The movement of the piston in the opposite direction is terminated when the spring adapter 196 rests against the inside or shoulder 201 on the spring housing 192. The piston 184 can therefore be displaced in either direction by the compressive forces acting on the opposite ends of the piston; however, this movement is terminated when the spring adapter 226 abuts the valve housing 180-A or when the spring adapter 196 abuts the spring housing 192. At the beginning of the control function, a selected flow is initiated by the action of the two springs 194 and 230 and their adapters. D _o h., The normal position of the piston can be accurately determined. The springs acting on the working piston 174 do not exert an uncontrolled effect but are under the influence of the elements described above, which limit the effect of the springs on the movement of the piston, and the effect of each spring is limited to the relevant piston end, which spring effect if necessary, can be isolated from the opposite end of the piston.

In FIG _o 4S an arrangement 104 is shown a! Passage 416 for adjusting the Veite which is trömurigsregulierungsdurchlass the Haupts, as already described. By turning the adjusting knob 256, the adjusting shaft 209 can be moved axially, whereby a spacer 432, an extension pin 420 and a valve cone 418 are moved at the same time and thus the annular opening of the passage 416 is widened or narrowed so that the strength of the flow can be determined « . By actuating the setting arrangement 104 accordingly, the width of the passage 416 can be changed and the flow can be regulated in the desired manner, the action of the pressure drop occurring at the passage 416 on the working piston causing a pressure compensation such that a constant pressure drop at the passage 416 and a relatively constant flow is maintained.

As shown in Fig. 48, is between the outer end of the spring 194 and a shoulder 394 on the spring housing 192, a spacer 400 is arranged, which provides an additional preload the spring 194 causes the spring to act on the piston

10 9 8 15/131 /, ORIGINAL INSPECTED

ZU4Ü98Z

exerts a greater pressure for the purpose at which the passage and thus the pressure drop required at the working piston 184 raise. With the aid of the spacer 400 above the spring 194, a higher pressure drop can be established at which the Valve unit becomes effective, and also the accuracy and the capacity of the valve unit can be influenced. this represents part of the programming options that are available with the adjustment springs described above, the spacer, the piston stops and the passages can be reached «,

It should also be mentioned that when programming the 38 and 38-B, the spacer 400 has been omitted so that the regulating spring 194 rests directly on the shoulder 394 of the spring housing 192 exerts a relatively weak pressure on the piston. This measure was made for the sake of accuracy and Stability met, as different requirements are placed on a pressure relief valve can be placed on a flow control valve.

In the following, the equalizing valve will now be described together with the check valve, which is shown schematically in FIGS. 1 and 3 at 90 and in FIG. 53. This valve combination 90 consists of the normal flow valve unit 222, the signal flow valve unit 228 and from the check valve unit 434-A _o With the license plate 434-A is a different from the programming of the valve unit 434 programming are displayed.

The flow regulating valve unit 222 shown in FIG. 53 acts essentially in the same way as described for the relevant part of the safety valve 46 (FIGS. 38 and 51) when the flow through the balancing valve 90 from the passage 474 to the passage 476 in FIG Forward direction is directed through the Vasitil. Furthermore, the signal flow valve unit 228 works with the signal piston 276 in the same way as the signal flow valve unit of the safety valve 4-6 _f, whereby a pressure drop is generated at the passage 302, in which the working piston is moved into the open position, ao that the liquid from the passage 474 to to the

109 8 15/1314

Piston end leading passage 376 can flow.

The check valve 434-A (rig.53) is with the flow regulating valve 222 are combined so that the locking effect can be programmed in the reverse direction, as later will be described.

In the above-described operation in the forward direction, the check valve 94 is ineffective because a Plug 450 is inserted so that no flow is possible in the direction of inlet 474. The flow through the working piston 184 is exactly the same as already with respect to the Piston that is controlled by the signal flow unit 228 is described. From Fig. 53 it can be seen that the signal flow unit 228 has a passage 252, which via the discharge channel 476, the side arm channel 142, the branch channel 140 and the collecting channel 112 a connection back to the reservoir manufactures (.cig.3) «This shows that the ball check valve 94 is ineffective when the counterbalance valve 90 is operating in the forward direction.

When working backwards, where the flow is in the passage 476 occurs and is to be continued to passage 474, the valve 90 acts in a different way » The working piston 184 is normally in the closed position, and the chamber at the end 207 of the signal piston 276 is under the effect of the pressure over the passage 252, so that the other end 352 under the effect of the pressure from the Passage 474 is available. The inlet pressure at passage 476 holds the signal piston 276 in the closed position, so that in this Operating state no signal flow occurs. The reflux from the passage 476 is led to the recess 208 on the bushing of the working piston 184 and blocked, since this piston is in the closed position. The flow is, however, through the passage part 456 in the not blocked by a plug Check valve unit 434-A and through the ball check valve 94 as well as through a passage part 454 to the Passage 366, which is in communication with the chamber 348 at the end 295 of the working piston 184. The flow to the

1 0 9 8 ₁ 5/1 3 UO 1 RiGiMAL INSPECTED

2040382

■■■■■ '■'. ■■. - "■■" ■ - ⁵⁹ - Λ ■■ ' ^: ^ - ^:

Passage 376 is blocked by the check valve 220 in the chamber 348 and can then only continue through the opening 322 via the passages 320, 376 and finally "to the housing recess 218, the piston recess 216 and the passage 368, which is connected to the passage 474 of FIG Shut-off valve unit is connected * Here, the bypass path for the signal flow is closed. Bs it is pointed out that a very weak signal flow is maintained, since the passage. 322 is small according to the program The resistance to the flow to the chamber 348 at the end of the working piston 184 (i'lge55) is relatively small, so that the pressure in this chamber and at the piston end 295 increases relatively high, with the working piston 184 in the opposite direction in the position opening the passage 208 to the passage 218 is moved, so that the flow is vigorous In this way, the ball check valve 94 directs the signal flow into the passage 322, whereby a back pressure is exerted on the working piston 184, in which the piston is moved against the leather 194 into the fully open position, in which through passages 208 and 218 via the piston recess 21.6 are connected with each other. Is the hereby achieved main advantage is to be seen '"that actuates the working piston so a small non-return valve, that this is moved in the reverse direction into the open position, for which purpose a weak signal flow loading uses * to a large opening movement of the piston to effect what would normally not be possible since the piston is in the normal closed position. This measure eliminates the need to provide a very large check valve to handle the full flow around the elements of the working piston, in a sense therefore, the working piston is used as a reverse blocking valve with a large capacity when the piston is operated from the small signal valve 94 in the manner described. During the .backward flow in this equalizing valve unit 90 ^, the signal piston 276 is always held in the closed position by the return acting on the piston at the spring end 207.

109815/131 I.

pressure, whereby the opening movement of the piston is not counteracted willo

The end 348 of the working piston 184 under the action of the spring 194 is overflowed during this backward flow the housing recess 372 with the openings 308, 302, 328, the Passages 380, 382 and connected to the passage 218 via the open passage part 326, so that the pressure drop across the working piston 184 in the reverse direction as a result of the action of the Check valve 94 occurs. There is therefore a natural pressure drop at the passage at which opening in that direction takes place, in which the passage 476 is connected to the passage 474 without further processes taking place in the valve.

The following are those shown in FIGS. 1, 3, 43 and 55 Cross pressure relief valve assemblies 24-28 are described. These valves are provided in the left branch arrangement 130 (Figol and 3), control the hydraulic motor 108 and relieve the kotor of excessively high pressure while the motor is stopped or while the direction of rotation is reversed of the motor. The description relates to both pressure relief valve units 24 and 28, have the same universal piston and associated elements. These valves are arranged in a housing unit 180-ü, which essentially resembles the housing unit 180-A, which together with the other valve units already described is used. The housing 180-B does not have signal passages on the upper side which are connected to a signal flow valve unit, but only a few connection holes are provided, which are required for the basic valve functions. That Housing 180_ü is essentially the same with regard to the intermediate surfaces y9 and the passages, so that it consists of one standardized universal body can be produced, which is already used for the pressure relief valve 46 and the compensating valve 90 “Complicated signal passage arrangements therefore only need to be provided if special programming requires this.

As can be seen from Figures 43 and 55, the

1 0 9 8 1 5/1 3 U

Dam 186-Α compared to the Dom 186 of the valves described above units are designed differently than on the top a through-hole for attaching each adjustment device 38 - 40 is provided, in which the normal 3-edged housing 280 is used. In the present case, too, the described adjusting knob 256 and the shaft 209 is used, 3but a new set of parts is used, namely the spring. ' adapter 490 to accommodate the end of a sturdy spring 492 ", which is mounted at the other end in a spring bearing member 494, as well as a ball 496 on which the normal adapter member 196 is mounted for the working piston 184, which carries out the stopping functions to be described.

At the inlet 244 of the illustrated in FIGS. 1 and 3 at 28 Cross pressure relief valve is connected to one side of the hydraulic motor 108 via the branch passage 134, so that the motor in a sense of rotation from the via the socket recess 220 supplied hydraulic fluid is driven. This flow is blocked by a plug 416 in passage 177 and through the free passage part 320 as well as through the Check valve 226 passed to end 296 of working piston 184. This pressure of the liquid in the branch channel 134 then acts the piston 184 against the pressure of the spring 492, whose force is set with the aid of the setting device 40. In front of a When actuated, the piston 184 is normally in the closed position. so that the passage 220 with the passage 214 does not while passage 240 is connected to passage 238 is locked. This programming is described by Omission of the piston spacer 406 (Jj'ig.38-A) achieved, which spacer when programming the flow control valve unit 100 'was used and that was omitted when programming the safety valve unit 46 and the equalizing valve unit 90.

If the pressure in the branch channel 134 increases during operation, then plants this pressure continues via the passage 244 to the end 295 of the working piston 184 and counteracts the pressure of the spring 492 and causes the piston to start moving. Increases the pressure continues to exceed the limit of the setting of the setting

109815/1 3U

OPJGINALINSPECTED

device 40 a certain value, so the passages 220 and 214 with one another via the piston recess 216 connected, whereby the passages 238 and 244 are also placed in communication with one another. Is the pressure on motor 108 the same as high as the pressure determined by the setting of the valve, the flow in branch duct 134 past the motor is to the Diverted branch passage 136, whereby the existing pressure on the engine is limited.

In the chamber 498 (üig _o 43 and 55), in which the spring 492 is arranged, the lower pressure of the drainage passage 238 is maintained via the passage 410 and the socket recess 214, which passages connect the chamber 498 with the drainage opening 238. As a result, the pressure at inlet 244 is measured against the force of spring 492 without back pressure occurring in fire chamber 498. If the pressure at the inlet 244 in communication with the branch channel 134 drops, the piston 184 is returned to the normal closed position by the spring 492 into the normal closed position, which counteracts the pressure in the line 244, the flow from the inlet 244 is blocked off to the drain 238 »

If the hydraulic motor 108 is operated in the opposite direction of rotation, and there is a higher pressure and at the passage 238 If there is a low pressure at the passage 244, the piston 184, which is in the normal closed position, causes a complete Blocking the flow.

The other cross pressure relief valve shown in Figures 1 and 3 24 operates in the same way as the pressure relief valve 28, but in the reverse direction. in the Branch channel 136 is therefore the pressure to which the setting device 38 of the pressure relief valve 24 is set, and the flow becomes from branch passage 136 to the other branch passage 134 under the action of the cross-pressure relief valve 24 passed in the same way as for the pressure relief valve 26, but in the opposite direction, so that once the piston 184 is in the normal Closed position, the two relief valves * »* parallel

1 0 9 8 1 5/1 3 U

ORlGiNAL INSPECTED

2 U 4 ι J: 1 ^ 2

; .. ■■ ■. - 43 - '■.'. '. ■

to one another at the branch channels 136 and 134 counteract one another, with one valve in one lease and the other other valve is effective in the opposite direction, so that by an independent adjustment of the "two valves, an effective pressure relief of the hydraulic motor 108 by a double flow is feasible.

Pressure relief valves 24 and 28 are generally simplified pressure regulating valves and should be used under certain conditions for economy and simplicity. The universal flow valve assembly can be programmed to perform various control functions as required by the particular control system.

As shown in Figures 43 and 38-A, a spacer 406 can be inserted over the piston 184 so that the valve is normally open, with the piston recess 204 connecting the passages 214 and 202 together. As the pressure increases at passage 244, the normally open. Passages 2G2 and 214 closed and not opened as in the valve of FIG _c 43s which is programmed in the manner described above. , The piston spacer 406, a change of the programmed puncture of the plunger of the puncture change that was in respect g on the pressure compensated flow control valve according to the figures 44 _ 47 and 54 described have the passages 220 and 214 are opened as a result of a pressure increase effected so similar.

With reference to FIGS. 1, 3 and 57 a filter and pressure relief valve assembly 62 attached to a serial side block 58. This combined unit 62 performs both a filter function and a function Divert pressure relief function off.

As can be seen from the schematic representation of the filter and valve unit in FIG. 57, an inlet 566 is connected to the main _{return channel 112 (üig o} 3), into which channel all of the liquid flowing back from the control system is directed flows into the

1098 15/131 ^

■■■ ORIGINAL · INSPECTED

568 through the filter element 179, in which impurities are filtered out, and then to the inner chamber 570, from which the liquid flows via the passage 572 and the line 580 to the storage container 74 (jrig _e 3). if for some reason the filter element 179 becomes clogged so that an extremely high pressure drop occurs in the direction of flow from the chamber 568 to the chamber 570, the flow from the chamber 568 is through a check valve 64 to the passage 572 and via a passage 580 derived to the reservoir 74

As can be seen from FIG. 57, the check valve 64 held closed by the spring 578, the passage 574 via the passage 574 to the chamber 568 and the other Side of the shut-off valve is connected to the passage 572 via the passage 576. The spring 578 holds the check valve 64 so long closed until there is a predetermined pressure at the shut-off valve at which the liquid from the chamber 568 to the passage 572 can flow.

FIG _o 56 shows in a schematic representation a of a spring, directly operated four-way valve illustrated in Figures 1-3 as a valve 32nd The valve 32 is attached to a branch arrangement from which the flow from the pressure channel 110 and from the pointing channel 134 (.rig.3) is directed through the blocks to the pressure inlet of the four-way valve 32 at the passage 172 of the unit, which is connected to the pressure inlet 526 the Fig.56 is in connection. The flow is then directed to a socket recess 514, the flow being blocked when the piston 502 is in the closed position.

In operation, the flow is directed from the main channel 110 to the inlet of the 3 four-way valve 32 and from the inlet 514 either to the passage 516 or to the passage 512 depending on the direction in which the piston 502 is displaced by the electromagnets 498 or 500 »Receives the electromagnet 498 current so are the ports connected by the displacement of the piston 514 and 512 with each other (jj'ig.3) so that the liquid from the passage 172 to passage 176 and through the Z _e igkanal 136 to the hydraulic motor 108. If the streamed Port 514 connected to port 512, yo becomes :: u _o "easily the port

10 9 8 15/131 /,

ORSGiNAL INSPECTED

516 connected to passage 518, the flow from the Passage 174 is directed to passage 178.

If the other electromagnet 500 receives current, the ,, Displacement of the piston 502 puts the passage 514 in communication with the passage 516, and further the passage becomes 512 connected to passage 510. This is where the engine 108 is supplied with hydraulic fluid via the other branch 134 un operated in the opposite direction of rotation.

"From the above it can be seen that the four-way valve directs the flow to one passage of the hydraulic motor and at the same time the liquid from the other passage of the motor to the reservoir 74 via the drainage channels 136 and 122 in the line units", with the help of the electromagnets and of the four-way valve, the operating fluid can therefore be fed to the motor 108 in two directions and discharged from the motor _{or the like}

The other four-way valve 82 shown in Figures 1, 3 and 52, which is provided in the branch arrangement 132, serves to divert the flow to the working cylinder 106. In FIG. 52 there is a four-way valve actuated by a control valve shown, whose working section contains a main piston 560, which is shown in Figure 52 on the left. On the right-hand side of FIG. 52 there is a signal section with a signal piston 502-A is shown, which is essentially the shown in FIG. 56 and under the direct action of a spring standing four-way valve.

The signal piston 502-A operated by electromagnets is used for actuating a two-stage four-way valve that supplies the working fluid leads in a certain direction. The four-way valve according to Fig. 52 is used instead of the four-way valve according to Fig. 56 used for stronger currents, namely off the same (Minden, from which the already described modulating Valves are used «In these cases controls a Signal piston actuated by electromagnets in the signal section a very weak signal flow, which causes a displacement of a larger power piston, which in turn is the main

109815/1314 Λ - ORIGINAL INSPECTED.

^ U4 Ii: .2

Affects the flow without the need for more powerful electromagnets will"

In the four-way valve operated by a control valve according to FIG. 52, the main channel 110 leads according to FIG Hydraulic fluid to the four-way valve via the branch channel 138 in the Central block 80 closes, and this liquid is directed to passage 150 (j) 'ig.3). The passage 150 stands with the valve inlet 534 (jrigo52) in connection so that the pressure fluid to housing passage 548 which is closed by power piston 560 when the piston is in normal Closed position · The flow path of the four-way valve has a branch in the form of a line 58k: which connects the Directs pressure fluid to inlet 526 of the signal section, so that a control pressure is available at the housing passage 514, which passage is kept closed by the signal piston 502-A as already described. If the electromagnet 498 receives current during normal operation, the pressure fluid is discharged from the inlet 534 passed out through lines 582 and 514, where the latter line is connected to the housing passage 512, so that the pressure fluid flows through the passages 528, and 554 is directed to end 558 of working piston 560. Here the working piston is moved in one direction wherein the pressurized passage 548 is connected to the passage 550, the liquid through the passage 532 is derived. According to FIG. 3, the liquid is in this case through the passages 150 and 154 on the units and then passed through the equalizing valve 88 via the line 144 to the working cylinder 106.

At the same time, the main piston 560 is displaced in such a way that the passage 548 is connected to the passage 550, the Passage 546 is also connected to passage 544, which is the opposite side of working cylinder 106 (Ji'ig.3) from the pressurized branch passage 138 to the passage 152 of the unit concerned, which passage connects the Opening 156 of the unit and passages 140 and 112 to the Storage tank connects.

1098 15/1314 '. _{M <sprrTE0}

ORiClMAL (NSPECTLU

■ - 4-7 -

It should be noted that the signal piston 502-A shown in FIG 522 and 538 are connected to the reservoir 74. In this regard, which piston 5G2-A differs from the signal piston 502 after the Mg «, 56. The springs 556 and 564 can therefore center the working piston. According to the schematic illustration in FIG. 52, the passage 512 is connected to the passage 510 and the passage 518 to the passage 520 when the piston is centered, the webs on the piston being arranged so that they form the recesses 510 and 518 do not cover it completely at the socket. The piston M can therefore be returned to the central position. It should be noted that the springs directly actuated four-way valve is configured as shown in FIG _e 56 so that the webs on the piston, the recesses 510 and 518 cover on the bush, so that the two passages 510 and 518 from the reservoir to operate the hydraulic motor are isolated, so that the piston is in the middle position. From this it can be seen that there is necessarily a slight difference in the design of the webs on piston 502-A of the signal section according to FIG. 52, but that on the other hand this piston acts in the same way as the piston of the four-way valve according to FIG. 56 "In In one case, the piston 502-A actuates a main working piston 560, which in turn controls the hydraulic ((motor 108, while in the other case the piston 502 controls the hydraulic motor 108 directly.

Claims

109815 / 13U '■ OBlGiNAL INSPECTED

Claims (1)

^ U 4 U j ^c ä 2 - 48 claims Hydraulic control device, consisting of a number of standardized functions that perform several functions Units that form a two-channel system, characterized by a standardized line unit with a first and a second standardized intermediate surfaces, through passages which form two main channels and which run between said intermediate surfaces and lead the working flow of the system, through a third interface, through working flow openings, those forming in the line unit with the two main channels Passages can be connected, and through a working flow valve unit with a standardized Fastening and with intermediate surfaces, the openings of which are in communication with the openings on the third intermediate surface of the line unit. Hydraulic control device, consisting of a number of standardized units that perform several functions, which form a two-channel system, characterized by a standardized line unit with a first and a second standardized intermediate surface formed by two main channels running between said intermediate surfaces Passages for the working flow of the system, and with a third interface, through working flow openings, the passages forming in the line unit with said two main channels are connected can be, and by a working flow valve unit with standardized fasteners and with a Intermediate surface, the openings of which are connected to the openings on the third intermediate surface of the line unit indicate which working flow valve unit has a piston performing multiple functions and is optionally set up so can be that the piston is normally either in an open position or in a closed position ^8teht · 10981 5 / 13U ORIGINAL INSPECTE.?, - 49 - '■ Hydraulic control device, consisting of a number of standardized units which perform multiple punctures and which form a two-channel system, characterized by a standardized line unit with a first and. second intermediate surface, between which two main ducts forming passages for the working flow of the system .laufen, and with a third intermediate surface, through working flow openings that can be connected in the line unit with the two main ducts forming passages, and by a working flow valve unit with standardized fasteners and with intermediate surfaces, the openings of which are in communication with the openings on said third intermediate surface of the line unit, which working flow valve unit has a valve housing, a bushing element, the first end of which forms a first spring bearing and the second end of which forms a second spring bearing, a bushing guide for a spring adapter member , a three-way piston which is slidably mounted in the socket and is provided at a first end with an elongated guide for a spring adapter and with a removable spacer _? a first spring adapter on said guide having a shoulder whose movement in one direction is stopped by said first spring bearing and in the other direction by said housing, a first regulating spring with a stronger force interposed between the first spring adapter and said housing is, a second spring adapter which is slidably mounted in the bushing guide and is arranged between the second piston end and the housing, the second spring adapter has a shoulder, the movement of which is limited in one direction by the second spring bearing and in the other direction by the housing, and a second, weaker regulation spring disposed between the second spring adapter and the housing. 109815/1314 original inspectsd 2 U 4 1) ■ J: Ί 2 - 50 - 4 · Control device according to claim 3, characterized in that the housing is provided with passages which are in communication with said piston ends and lead control flows to actuate the piston. 5. Control device according to claim 3, characterized in that the second end of the piston has a control flow passage having, which connects the second piston with a recess on said piston, and that the second Spring adapter forms a flow control valve for said control flow passage. 6. Control device according to claim 3, characterized in that the second end of said piston is a control flow passage which connects the second piston with a recess on said piston that the second spring adapter forms a flow control valve for the control flow passage, and that the second Spring adapter with a flow rose passage is provided with the control flow passage on said Piston is in communication. 7. Hydraulic control device, consisting of a number of standardized units that perform several functions, which form a two-channel system, characterized by a standardized line unit with standardized first and second intermediate surfaces, between which two passages forming main channels run for the working flow of the system, and with a third interface, by working Roman openings in the conduit unit with the two Passages forming main channels can be connected through a working flow valve assembly with standardized fastening means and with an intermediate surface, the openings of which with said openings on the third Intermediate surface of the line unit are in communication, and by means with which one of the channel-forming can be selected Passages can be blocked or opened, so that between the valve unit and the said channels 109815/1 3H ORIGINAL INSPECTED optionally parallel, series and series-parallel working flow connections can be produced according to the program. 8. Hydraulic control device, consisting of a number of standardized and multi-function inputs. hexes, which form a two-channel system ", characterized by a standardized line unit with standardized first and second intermediate surfaces, between which two passages forming main channels run for the working flow of the system, and with a third intermediate surface, through working flow openings that are in the line unit with the two main channels forming passages can be placed in communication, through a Arbeitsströmungsventil- a unit with standardized Befestigungsmittein and an intermediate surface, the openings are provided with said openings in the third interface of the line unit in connection, which valve unit comprises a plurality of functions-applying piston, and can be arranged so that the piston is normally either in an open position or in a closed position, and by means by which one of the channel-forming passages can either be blocked or opened, so that after a Parallel, series or series-parallel connections can be established in a program between the valve unit and the named channels. 9. Hydraulic control device, consisting of a number of standardized units that perform several functions, which form a two-channel system, marked through a standardized line unit with standardized first and second interface »between which two main channels forming passages for the working flow of the system run, and with a third intermediate surface, through working flow openings, those in the line unit with the both channel-forming passages are connected can, and by a working flow valve unit • with standardized fastening means and with an intermediate surface, the openings of which with the openings mentioned on the 1098 15/13U L SWSPEGTED third interface of the line unit in connection stand, which working flow valve unit comprises a valve housing, a socket element, the first end of which is a first spring bearing member and the second end of which forms a second spring bearing member, a bushing guide for a Spring adapter, a three-way piston slidably mounted in the socket and having a first end an elongated guide for a spring adapter and a removable spacer member is provided, a first Spring adapter on said guide with a shoulder whose movement in one direction from the first Spring bearing member and limited in the other. Direction of the housing becomes, a first stronger ragulation spring between the first spring adapter and the housing, a second spring adapter, which is in the socket guide between the second piston end and the housing is slidably mounted, which second spring adapter has a shoulder, whose movement is limited in one direction by the second spring bearing member and in the other direction by the housing, a second weaker regulation spring between the second spring adapter and the housing, and means having which optionally one of the channel-forming passages can either be blocked or opened, so that according to a program optionally between the valve unit and the named channels parallel, series and series parallel connections can be produced. 10. Control device according to claim 9, characterized in that said housing has passages, which with the piston ends are in communication and lead control flows to actuate said piston. 11. Control device according to claim 9, characterized in that the second end of said piston has a control flow passage which connects said second piston to a recess on said piston, and that the second spring adapter forms a control flow valve for said passage. 1 0 9 8 1 5/1 3 U ORIGINAL INSPECTED ' . 2UA098 2 12. Control device according to claim 9 »characterized gekennzeiGh- 'net that the second end of said piston has a control flow passage that the second piston with. a recess on said piston connects that the second lower adapter forms a control flow valve for said passage, and that the second 3? eder adapter is provided with a flow throttle passage which is connected to the control flow passage on said piston " _β 13ο Control device according to claim "t, characterized by a standardized parallel connection side block unit, which at the aforementioned standardized line unit to standardized opposite Intermediate surfaces is attached. 14 · Control device according to claim 7, characterized by a standardized parallel connection side block unit which is connected to the aforementioned standardized line unit to standardized opposite Interfaces is attached. 15 «Hydraulic control device, consisting of a number of line units, which are an arrangement of channels with a pressurized main channel, which is connected to a Pressurized fluid source is in communication, and with "a main drainage channel communicating with a reservoir form, and from a second number of line units, which form a branch arrangement with first and second branch channels, which with said main channels are connected, characterized in that said branch arrangement has a standardized line unit, their first and second intermediate surfaces with intermediate surfaces are combined at adjacent line units in said branch that said line unit has a third Having valve mounting interface on which valve means is attached, and that the line unit a first "passage" leading from the channels to the valve and one leading from the valve back to the channels has second passage, 109815/1314 2U4Ü9B2 16 »Control device according to claim. 15 _f characterized in that the valve performs a diversion function between certain branch channels on one side of the line unit and certain other branch channels on the other side of the line unit. 17. Control device according to claim 15, characterized in that that the valve has a flow modulation function the channels of the branch arrangement. 18. Control device according to claim 15 »characterized in that that said valve consists of a standardized working flow valve unit with a multiple punctures Piston and with a socket, which valve can be set up to open or normally normally closed. 19 «Control device according to claim 15 _f, characterized in that said valve consists of a standardized working flow valve unit, which has a valve housing, a bushing element, the first end of which forms a first spring bearing, and the second end of which forms a second spring bearing, a bushing guide for a spring adapter , a three-way piston which is slidably supported in the socket and the first end of which is provided with an elongated guide for a spring adapter and a removable spacer, a first spring adapter on said guide with a shoulder whose movement in one direction from the first peder bearing and is limited in the other direction by said housing, a first stronger ragulation spring between the first spring adapter and the housing, a second spring adapter which is slidably mounted in the bushing guide between the second piston end and the housing, and the a shoulder, the movement of which is limited in one direction by the second spring bearing and in the other direction by the housing , and a second, weaker regulating spring between the second spring adapter and the housing. 1 0 9 8 1 5/1 3 U ORIGINAL INSPECTED HO * control device according to claim 15, characterized in that the channel-forming passages of certain line units Barrier agents contain / which the flow in the Channels from series flows in parallel flows and vice versa convert. 21. Hydraulic control device, which consists of a number of standardized components and components that perform multiple punctures is composed, characterized by a central block with a first number of parallel, channel-forming passages, which run in one direction to a first number of openings on a first intermediate duct, and having a second number of channel-forming passages extending in a second direction to second openings on one second line interface run, which mentioned first and second conduit interfaces with rod fasteners and provided with seals for said openings, said central block being a Having valve mounting surface provided with a number of valve passages communicating with said channel-forming passages through a A valve block having a flow diverting element attached to the valve mounting surface through a first Series of side blocks that form branch channels and form a first branch with interfaces and openings, and the openings, seals and rod fasteners which mate with corresponding elements on the interface of the first central block, and through a second series of side blocks defining branch flow passages and having interfaces with apertures, seals, and rod fasteners connected to corresponding elements at the interface of the second Match the middle block. 22e Hydraulic control device, characterized by . a number of standardized components attached to intermediate surfaces are united with one another, each ^ component being a number of passages with openings, -the ones with openings 109815/1 3 U ■ ·. ■ -. ": 2 Ü 4 Ii fs 3 2 ^v and aligned passages of an adjacent component fit together where "certain components have a lateral interface for attaching a branch arrangement of the standardized components, which intermediate surface has transverse passages and has openings which mate with the former openings. 23ο Procedure for assembling a hydraulic control system, characterized in that the hydraulic flow circuit is recorded in the form of a two-dimensional flow diagram of structural units that are attached to each other adjacent to form a two-channel flow system that standardized structural units set up for a three-dimensional arrangement are selected in such a way that the predetermined Flow circuit is established according to the two-dimensional diagram, and that the structural units for the mentioned Plant can be assembled in a three-dimensional arrangement. 24 · The method according to claim 23, characterized in that between adjacent structural units a central block unit is arranged, and that a valve unit is attached to the central block, which the flow between channels influenced in the adjacent building units. 25ο method according to claim 23, characterized in that that in the case of the structural units mentioned, standardized distances between the openings are provided at their intermediate surfaces are. 26ο Method according to Claim 23, characterized in that that the structural units are put together in such a way that standardized interfacial seals face recesses, which are provided at the connection openings. 1 0 9 8 1 B / 1 3 U ORIGINAL INSPECTED 2Ü40982 2.7 V hydraulic control device according to claim 22, characterized in that characterized in that said structural units are fastened to one another by means of spaced rods, and that said passages are arranged offset from the center with respect to the fastening rods and Have interface seals, which extend from the interface from in the openings to opposite Directions extend into it, causing the culverts to open "be aligned with each other. 28o hydraulic control device according to claim 1, characterized marked that the line units with mounting holes standardized width and with standardized spacing from each other, which accommodate a number of standardized fastening rods in predetermined lengths, and that the length of the line units between the two-channel interfaces and the lengths of the mounting rods like this are dimensioned so that they are whole multiples or fractions of an arbitrarily chosen unit of length » 29ο Hydraulic control system according to claim 1, characterized in that that the working flow valve unit has a second interface on which a signal flow valve unit is attached that controls the working flow unit. 30 »Hydraulic control system according to claim 29, characterized in that · indicates that the signal flow valve unit has control ports that are connected to other units of the system © 10 9 8 1 5/1 3 1 4 originally inspected Le first page