DE2440000B2 - oil tank for hydrostatic steering systems of motor vehicles - Google Patents
oil tank for hydrostatic steering systems of motor vehiclesInfo
- Publication number
- DE2440000B2 DE2440000B2 DE2440000A DE2440000A DE2440000B2 DE 2440000 B2 DE2440000 B2 DE 2440000B2 DE 2440000 A DE2440000 A DE 2440000A DE 2440000 A DE2440000 A DE 2440000A DE 2440000 B2 DE2440000 B2 DE 2440000B2
- Authority
- DE
- Germany
- Prior art keywords
- pot
- interior
- container
- valve
- filter insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002706 hydrostatic effect Effects 0.000 title claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 6
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/147—Bypass or safety valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/153—Anti-leakage or anti-return valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Power Steering Mechanism (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
Die Erfindung betrifft einen ölbehälter nach dem Oberbegriff des Patentanspruches 1.The invention relates to an oil container according to the preamble of claim 1.
Derartige ölbehälter sind aus der Deutschen Offenlegungsschrift 16 11169 bekannt. Bei diesen mündet ein Einlaufstutzen am Boden des Behälters innerhalb des Filtereinsatzes, während ein Auslaßstutzen in der außerhalb des Filtereinsatzes liegenden Behälterwand angeordnet ist. Dieser ölbehälter ist insbesondere für ölhydraulische Lenksysteme vorgesehen. Such oil containers are known from German Offenlegungsschrift 16 11169. With these an inlet port opens at the bottom of the container inside the filter insert, while an outlet port is arranged in the container wall located outside the filter insert. This oil container is intended especially for hydraulic steering systems.
Bei hydrostatischen Lenkanlagen von Kraftfahrzeu- b0 gen ist gesetzlich vorgeschrieben, daß die Lenkbarkeit des Fahrzeuges auch bei einem Ölverlust der Lenkanlage sicher gewährleistet bleiben muß. Dies erfordert, daß eine bestimmte ölmenge über einen bestimmten Zeitraum hinweg aus dem ölbehälter durch die &5 Zulaufleitung rückgesaugt werden kann. Bei dem bekannten ölbehälter kann jedoch nur die ölmenge luftfrei angesaugt werden, die sich innerhalb des Filtereinsatzes befindet Dies erklärt sich aus der Tatsache, daß Luft leichter durch den Filtereinsatz dringt als Öl. Wenn nun öl aus dem Inneren des Filtereinsatzes rückgesaugt wird und der Ölspiegel im ölbehälter bis unter die Oberkante des ölfilters gesunken ist so wird Luft angesaugt Die im Innern des Filtereinsatzes befindliche ölmenge ist aber für ein sicheres Lenken nicht ausreichend.Gen with hydrostatic steering equipment for motor vehicles b0 is required by law that the steerability of the vehicle must remain reliably ensured even at an oil loss of steering control. This requires that a certain amount of oil can be sucked back from the oil container through the & 5 supply line over a certain period of time. In the known oil container, however, only the amount of oil that is located inside the filter insert can be sucked in without air. This is explained by the fact that air penetrates through the filter insert more easily than oil. If oil is now sucked back from the inside of the filter insert and the oil level in the oil container has sunk to below the upper edge of the oil filter, air is sucked in. However, the amount of oil inside the filter insert is not sufficient for safe steering.
Der Erfindung liegt deshalb die Aufgabe zugrunde, einen Ölbehälter zu schaffen, mit dem bei einem Ölverlust einer hydrostatischen Lenkanlage eine für die sichere Lenkbarkeit des Fahrzeugs erforderliche ölmenge zur Verfügung gestellt werden kann.The invention is therefore based on the object to provide an oil container with which in a Loss of oil in a hydrostatic steering system is an amount of oil required for safe steerability of the vehicle can be made available.
Diese Aufgabe wird durch die im kennzeichnenden Teil des Patentanspruches 1 angeführten Merkmale gelöst Weitere zweckmäßige Merkmale sind in den Unteransprüchen angegeben.This object is achieved by the features listed in the characterizing part of claim 1 solved Further useful features are given in the subclaims.
Nachstehend wird die Erfindung anhand eines in einer Zeichnung dargestellten Ausführungsbeispiels näher erläutertThe invention is described in greater detail below with the aid of an exemplary embodiment shown in a drawing explained
Ein ölbehälter besteht im wesentlichen aus einem Behältertopf 1 mit einem Deckel 2. Der Behältertopf 1 weist an seinem Boden einen Zulaufanschluß 3 für eine Zulaufleitung 4 und einen Ablaufanschluß S für eine Ablaufleitung 6 auf. In dem Behältertopf 1 ist in einem gewissen Abstand über dem Boden des Behältertopfes 1 ein ringzylinderförmiger auswechselbarer Filtereinsatz 7 angeordnet. Der Filtereinsatz 7 ist von zwei Abdeckungen verschlossen, von denen die untere — mit der Ziffer 8 versehen — dargestellt ist.An oil container essentially consists of a container pot 1 with a lid 2. The container pot 1 has at its bottom an inlet connection 3 for an inlet line 4 and an outlet connection S for a Drain line 6 on. In the container pot 1 is at a certain distance above the bottom of the container pot 1 an annular cylinder-shaped replaceable filter element 7 is arranged. The filter element 7 is of two Covers closed, of which the lower - provided with the number 8 - is shown.
Die Zulaufleitung 4 mündet in einen Innenraum 9 des Filtereinsatzes 7. An der Mündung der Zulaufleitung 4 ist eine Rücksaugeinrichtung 10 angeordnet die als ringförmiges Plattenventil die Zulaufleitung 4 umgibt Das Plattenventil besteht aus einem Ventiltopf 11 und einer diesen abdeckenden ersten ringförmigen Ventilplatte 12. Die erste Ventilplatte 12 bildet mit dem Ventiltopf 11 zusammen ein in Richtung zum Behälterinneren öffnendes Überdruckventil. Die erste Ventilplatte 12 weist Bohrungen 13 auf, die durch eine zweite ringförmige Ventilplatte 14 unter der Kraft einer Druckfeder 15 verschlossen sind. Die Druckfeder 15 übt eine derart geringe Kraft auf die zweite Ventilplatte 14 aus, daß diese bereits bei einem geringen Unterdruck in der Zulaufleitung 4 ein Ansaugen von öl aus dem Inneren des Behältertopfes 1 über die Bohrungen 13 in einen aus dem Ventiltopf 11 und den beiden Ventilplatten 12 und 14 gebildeten Innenraum 16 ermöglicht. Der Innenraum 16 steht über radial angeordnete Bohrungen 17 mit dem Inneren der Zulaufleitung 4 in Verbindung.The feed line 4 opens into an interior 9 of the filter insert 7. At the mouth of the feed line 4 a back suction device 10 is arranged, which surrounds the inlet line 4 as an annular plate valve The plate valve consists of a valve pot 11 and a first annular valve plate 12 covering it. The first valve plate 12 forms with the Valve pot 11 together have a pressure relief valve that opens in the direction of the interior of the container. The first valve plate 12 has bores 13 through a second annular valve plate 14 are closed under the force of a compression spring 15. The compression spring 15 exercises such a small force on the second valve plate 14 that this already at a low negative pressure in of the feed line 4 a suction of oil from the interior of the container pot 1 via the bores 13 in an interior space 16 formed from the valve pot 11 and the two valve plates 12 and 14 enables. The interior 16 is via radially arranged bores 17 with the interior of the Feed line 4 in connection.
Die Abflußleitung 6 weist ein in das Innere des Behältertopfes 1 hineinragendes Leitungsstück 18 auf, das mit Abflußbohrungen 19 versehen ist Die Abflußbohrungen 19 liegen an der oberen Grenze des Niveaus einer ölmenge, die bei einem Ölverlust in der Lenkanlage für eine sichere Lenkbarkeit des Fahrzeuges erforderlich ist.The drain line 6 has a line piece 18 protruding into the interior of the container pot 1, which is provided with drain holes 19 The drain holes 19 are located at the upper limit of the Levels of an amount of oil that, in the event of an oil loss in the steering system, ensure that the vehicle can be steered safely is required.
Um ein Ansaugen von Luft und von verschmutztem öl aus dem Innenraum 9 des Filtereinsatzes 7 ζυ verhindern, ist in der Zulaufleitung 4 zwischen der Rücksaugeinrichtung 10 und dem Innenraum 9 des Filtereinsatzes 7 ein in Richtung auf den Innenraum 9 öffnendes Rückschlagventil 20 angeordnetTo suck in air and contaminated oil from the interior 9 of the filter element 7 ζυ prevent is in the feed line 4 between the suction device 10 and the interior 9 of the Filter insert 7 has a check valve 20 which opens in the direction of the interior space 9
Bei einem Ölverlust, der beispielsweise durch eine Leckstelle in der Druckleitung der Pumpe entsteht, sinkt das ölniveau nur bis zu den Abflußbohrungen 19, so daß unterhalb dieser Bohrungen noch eine ausreichendeIn the event of an oil loss, for example due to a leak in the pressure line of the pump, the pressure drops the oil level only up to the drain holes 19, so that there is still sufficient below these holes
ölmenge zur Verfügung steht Diese ölmenge kann durch eine Steuerpumpe der hydrostatischen Lenkung über die Rücksaugeinrichtung 10 angesaugt werden.amount of oil is available This amount of oil can be sucked in by a control pump of the hydrostatic steering via the suction device 10.
Mit Hilfe dieser Einrichtungen kann eine hydrostatische Lenkanlage in vorteilhafter Weist auch bei einem Ölverlust mit einer für ein sicheres Lenken ausreichenden ölmenge versorgt werden.With the help of these devices, a hydrostatic steering system can also be used in an advantageous manner Oil loss must be supplied with a sufficient amount of oil for safe steering.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (3)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2440000A DE2440000C3 (en) | 1974-08-21 | 1974-08-21 | oil tank for hydrostatic steering systems of motor vehicles |
| IT50943/75A IT1041236B (en) | 1974-08-21 | 1975-08-12 | OIL TANK ESPECIALLY FOR HYDROSTATIC VEHICLE DRIVING SYSTEMS |
| BG030809A BG30767A3 (en) | 1974-08-21 | 1975-08-18 | Oil solution for hydrostatic wheel eguipments of motor veihcles |
| SE7509275A SE404594B (en) | 1974-08-21 | 1975-08-19 | OIL CONTAINER SPECIAL FOR HYDROSTATIC CONTROLS IN MOTOR VEHICLES |
| FR7525723A FR2282551A1 (en) | 1974-08-21 | 1975-08-20 | Oil reservoir for hydrostatic vehicle steering - compensates oil leakage for safe steering |
| ES440359A ES440359A1 (en) | 1974-08-21 | 1975-08-20 | Tokunijidoshano ekiatsukajitorisochonoaburatanku |
| BR7505334*A BR7505334A (en) | 1974-08-21 | 1975-08-20 | PERFECTED OIL CONTAINER, ESPECIALLY FOR HYDROSTATIC STEERING SYSTEMS FOR MOTOR VEHICLES |
| JP50101680A JPS5145834A (en) | 1974-08-21 | 1975-08-21 | Tokunijidoshano ekiatsukajitorisochonoaburatanku |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2440000A DE2440000C3 (en) | 1974-08-21 | 1974-08-21 | oil tank for hydrostatic steering systems of motor vehicles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2440000A1 DE2440000A1 (en) | 1976-03-11 |
| DE2440000B2 true DE2440000B2 (en) | 1978-11-23 |
| DE2440000C3 DE2440000C3 (en) | 1979-08-02 |
Family
ID=5923683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2440000A Expired DE2440000C3 (en) | 1974-08-21 | 1974-08-21 | oil tank for hydrostatic steering systems of motor vehicles |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5145834A (en) |
| BG (1) | BG30767A3 (en) |
| BR (1) | BR7505334A (en) |
| DE (1) | DE2440000C3 (en) |
| ES (1) | ES440359A1 (en) |
| FR (1) | FR2282551A1 (en) |
| IT (1) | IT1041236B (en) |
| SE (1) | SE404594B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2633099A1 (en) * | 1976-07-23 | 1978-02-09 | Bosch Gmbh Robert | SAFETY CIRCUIT IN A HYDRAULIC SYSTEM |
| JPS5541530Y2 (en) * | 1976-12-24 | 1980-09-29 | ||
| DE2711137C2 (en) * | 1977-03-15 | 1985-01-03 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Hydraulic system with a reservoir for the liquid pressure medium |
| DE2742610C2 (en) * | 1977-09-22 | 1982-09-09 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | oilcontainer |
| JPS60182557U (en) * | 1984-05-15 | 1985-12-04 | ダイキン工業株式会社 | fluid transmission equipment |
| JPH0645358Y2 (en) * | 1987-03-27 | 1994-11-24 | 雪印乳業株式会社 | Cutting equipment for processed foods containing large amounts of fiber |
| DE19539759A1 (en) * | 1995-10-26 | 1997-04-30 | Zahnradfabrik Friedrichshafen | Oil containers, in particular for hydraulic steering systems of motor vehicles |
| DE10216362C1 (en) * | 2002-04-13 | 2003-08-07 | Fte Automotive Gmbh | Overflow container for source cylinder of automobile hydraulic clutch or braking system with hydraulic connection for source container having projection for preventing air entering hydraulic system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2310601A1 (en) * | 1973-03-02 | 1974-09-05 | Bosch Gmbh Robert | HYDROSTATIC STEERING DEVICE |
-
1974
- 1974-08-21 DE DE2440000A patent/DE2440000C3/en not_active Expired
-
1975
- 1975-08-12 IT IT50943/75A patent/IT1041236B/en active
- 1975-08-18 BG BG030809A patent/BG30767A3/en unknown
- 1975-08-19 SE SE7509275A patent/SE404594B/en not_active IP Right Cessation
- 1975-08-20 ES ES440359A patent/ES440359A1/en not_active Expired
- 1975-08-20 BR BR7505334*A patent/BR7505334A/en unknown
- 1975-08-20 FR FR7525723A patent/FR2282551A1/en active Granted
- 1975-08-21 JP JP50101680A patent/JPS5145834A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT1041236B (en) | 1980-01-10 |
| BG30767A3 (en) | 1981-08-14 |
| JPS5739990B2 (en) | 1982-08-24 |
| FR2282551B1 (en) | 1979-09-07 |
| SE7509275L (en) | 1976-02-23 |
| FR2282551A1 (en) | 1976-03-19 |
| ES440359A1 (en) | 1977-03-01 |
| DE2440000A1 (en) | 1976-03-11 |
| BR7505334A (en) | 1976-08-03 |
| SE404594B (en) | 1978-10-16 |
| DE2440000C3 (en) | 1979-08-02 |
| JPS5145834A (en) | 1976-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: ZF FRIEDRICHSHAFEN AG, 7990 FRIEDRICHSHAFEN, DE |