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WO2012034734A1 - Soupape, en particulier pour une pompe hydraulique à piston - Google Patents

Soupape, en particulier pour une pompe hydraulique à piston Download PDF

Info

Publication number
WO2012034734A1
WO2012034734A1 PCT/EP2011/062088 EP2011062088W WO2012034734A1 WO 2012034734 A1 WO2012034734 A1 WO 2012034734A1 EP 2011062088 W EP2011062088 W EP 2011062088W WO 2012034734 A1 WO2012034734 A1 WO 2012034734A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
closing body
retaining means
valve seat
seat
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.)
Ceased
Application number
PCT/EP2011/062088
Other languages
German (de)
English (en)
Inventor
Oliver Gaertner
Daniel Gosse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to CN201180043958.3A priority Critical patent/CN103097717B/zh
Priority to KR1020137006270A priority patent/KR20130139868A/ko
Priority to EP11734071.1A priority patent/EP2616664A1/fr
Publication of WO2012034734A1 publication Critical patent/WO2012034734A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/341—Systems characterised by their valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4031—Pump units characterised by their construction or mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
    • B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre

Definitions

  • Valve in particular a hydraulic piston pump prior art
  • the invention relates to a valve, in particular a hydraulic piston pump, having a valve seat in which a valve opening is formed and which has a front and a rear side, a valve closing body on the front side of the valve seat for selectively opening and closing the
  • Valve opening is arranged, and a retaining means, the
  • Valve closing body holds relative to the valve seat. Furthermore, the invention relates to a method for producing a valve and a hydraulic piston pump and a vehicle brake system.
  • Hydraulic piston pumps such as vehicle brake systems, usually have ball valves as inlet and outlet valves, since they are relatively inexpensive to manufacture.
  • Such an inlet valve in the form of a ball valve is usually in one
  • Valve housing arranged, which is clamped on a holder of a retractable in a cylinder and a piston piston.
  • the inlet valve is to
  • fluid can be sucked by means of a stroke movement of the piston through an inlet device into a pressure region in the interior of the cylinder.
  • the outlet valve By the outlet valve, the fluid is then conveyed under pressure from the pressure range in a hydraulic system for performing work.
  • the valve housing is usually cup-shaped designed as a cage, inside which there is a helical return spring which urges against a spherical closing body.
  • the spherical closing body is thereby applied to a valve seat, which is formed on the end face of the piston.
  • the inlet valve closes and the outlet valve in the form of a ball valve is opened by there as a closing body also a ball against a
  • Hydraulic system promoted to perform work.
  • High pressure valve for high pressure pumps of fuel injection systems comprising a valve ball and a valve seat surface, wherein the valve ball for interrupting a connection between an inlet and a drain with the
  • Valve seat surface cooperates to a sealing seat.
  • the valve ball is urged by a helical return spring against the valve seat surface.
  • DE 10 2004 028 889 A1 discloses a piston pump for
  • the piston pump comprises an outlet valve and a slot-controlled
  • Inlet valve Inlet valve.
  • a valve ball In the exhaust valve, a valve ball is urged as a closing body by means of a disc-shaped return spring against an associated valve seat.
  • a valve in particular a hydraulic piston pump, with a valve seat, in which a valve opening is formed and which has a front and a back, a valve closing body, on the
  • Front of the valve seat for selectively opening and closing the Valve opening is arranged, and a retaining means, the
  • Valve closing body holds relative to the valve seat, created, wherein the
  • Retaining means is arranged on the back of the valve seat.
  • the hydraulic piston pump preferably comprises a cylindrical
  • Piston which is mounted in an interior of a cylinder and retractable. In the interior of the cylinder a filled with a fluid pressure area is provided and sealed. When the piston is moved out of the cylinder, a negative pressure is built up in the pressure region and the piston sucks fluid into the pressure region via an inlet valve. During retraction, the piston forces the fluid through an outlet valve from the pressure area into a hydraulic system to do work.
  • a fluid is to be understood as meaning a gas or also a hydraulic fluid, such as a hydraulic oil based on mineral oil or glycol.
  • the inlet valve and / or outlet valve is advantageous as a
  • the valve according to the invention has a valve seat with a valve opening, a valve closing body and a
  • Retaining means which urges the valve closing body by means of a restoring force against the valve seat.
  • the valve closing body is arranged on the one side, on the so-called front side of the valve seat, and the retaining means on the opposite side of the valve closing body, ie on the so-called rear side of the valve seat.
  • the valve closing body and the retaining means are connected by the valve opening to transmit force.
  • the retaining means is always anxious to urge the valve closing body against the valve seat and thus to close the valve opening.
  • valve closing body is opposite to the restraint
  • the exhaust valve is substantially fluid-tightly sealed during extension of the piston from the cylinder.
  • the inlet valve is closed; the retaining means urges the valve closing body on the valve seat, so that the valve opening is substantially closed fluid-tight.
  • Valve opening is open. Fluid then flows from the pressure area along the exhaust valve into a hydraulic system to do work.
  • valve according to the invention on the one hand ensures a good fluid-tight seal and on the other hand is inexpensive to manufacture.
  • a novel valve which does not require a complex return spring to be mounted in a valve cage. Due to the very simple construction of the valve according to the invention, the production costs can be reduced; the valve can be integrated in particular in a so-called "forward assembly" in the piston pump.
  • the retaining means is designed elastically and clamped on the back of the valve seat.
  • the retaining means is elastically formed and clamped or held on the rear side of the valve seat, in particular clipped.
  • the retaining means has a certain clamping force, which urges the valve closing body on the valve seat.
  • the retaining means thus exerts a tensile force on the valve closing body, so that this endeavors to close the valve opening.
  • the retaining means acts as a spring and ensures a fast closing of the valve closing body.
  • the retaining means comprises a connecting element which projects through the valve opening and is connected to the valve closing body.
  • a connecting element which projects through the valve opening and is connected to the valve closing body.
  • a preferably cylindrical shoulder or section is arranged on the side of the valve closing body, which faces the valve opening, which is received in the interior of the valve opening.
  • the connecting element is at a distance from an inner wall of the valve opening and accomplishes that the fluid when lifted
  • Valve closing body between the inner wall of the valve opening and an outer wall of the connecting element through the valve opening
  • the connecting element is preferably integrally formed with the valve closing body.
  • the retaining means comprises at least one web having two legs, which are arranged resiliently to one another via a respective end.
  • the retaining means comprises at least one web with two legs, which are arranged at a certain angle to each other.
  • the legs are elastic to each other. The one leg is clamped or held or clipped on the back of the valve seat and the other leg with the connecting element or with the
  • This elastically designed web has a certain clamping force, which urges the valve closing body on the valve seat.
  • the retaining means exerts on this at least one web so a tensile force on the valve closing body, so that this endeavors to close the valve opening.
  • the restoring force of the web acts as a spring and ensures a fast closing of the valve closing body.
  • the retaining means comprises two to eight, preferably three or four, substantially uniformly spaced webs, which are in particular U-shaped or V-shaped. Due to the elastic configuration of the webs, the valve closing body at sufficiently high pressure or
  • Negative pressure pressure difference
  • the V-shaped webs deform according to the distance to which the Valve-closing body is lifted from the valve seat and always exert a tensile force, that is, a restoring force on the valve closing body.
  • valve closing body and the retaining means in one piece as a
  • valve-closure-retaining means unit which is formed as a molded plastic injection molded part. Due to its shape, such an injection-molded plastic unit can be mounted particularly well forward on a valve seat and in a hydraulic piston pump, so it is easy to assemble with wide components in the production process. In addition, such a valve is robust and inexpensive to produce.
  • the valve is designed as a plate valve with a plate-shaped valve closing body.
  • Such a valve provides a plate-shaped valve closing body to
  • the plate-shaped valve closing body is designed convexly with respect to the valve opening.
  • the valve closing body preferably has an outwardly curved plate, viewed from the valve opening.
  • an outer periphery of the plate-shaped valve closing body is fluid-tight on the valve seat.
  • the valve closing body that is, the head of the valve is slightly over-pressed or a slight overstretching of the valve head is characterized by a slightly convex Design of the head achieved.
  • a "forward assembly" of the valve namely, when the retaining means is passed through the valve opening, the webs can come out of the valve opening and hook on the back of the valve seat.
  • the retaining means preferably comprises a connecting element, which with the convex shaped
  • Valve-closing body is connected.
  • the valve is a dome, hemisphere or cone valve.
  • the valve closing body can also optionally as a spherical cap, that is, as a specific spherical segment or ball section, as a
  • the method comprises the following steps:
  • valve seat having a front and a rear side, wherein a valve opening is formed in the valve seat
  • valve closing body retaining means unit comprising a valve closing body and a retaining means
  • Retaining means on the back of the valve seat and the valve closing body is arranged on the front side of the valve seat.
  • valve seat is provided.
  • the valve seat is from a
  • valve closing body retaining means unit comprises a valve closing body for selectively opening and
  • valve closing body and the retaining means are preferably formed in one piece.
  • the valve seat and the valve-closing body retaining means unit are assembled into a valve by means of a so-called "forward assembly".
  • valve-closing-restraint means unit is preceded by the retaining means, from the
  • the restraining means comprises at least one web
  • this web presses on insertion into the valve opening. Due to its shape and the resulting kinematics, the bridge folds away, ie, inwards.
  • the valve closing means retaining means unit far enough into the
  • Valve opening is pushed, so fold the webs due to their elasticity and entangle the valve closing-restraint means unit on the back of the valve seat.
  • the retaining means exerts a pulling force on the valve-closing body by means of the at least one elastic web, forcing the valve opening in the valve seat Essentially sealed fluid-tight.
  • a pressure on the back of the valve in the case of an exhaust valve
  • a suction in the case of an intake valve
  • the valve closing body is lifted from the valve seat and the retaining means deforms. The valve opening is opened and fluid can flow through the valve.
  • the hydraulic piston pump comprises a cylinder and a piston which can be retracted and extended in the cylinder.
  • a filled with a fluid pressure region is formed in the interior of the cylinder.
  • the piston moves out of the cylinder, a negative pressure is created in the pressure range constructed and the piston sucks fluid via an inlet valve in the pressure range.
  • the piston urges the fluid via an outlet valve from the pressure range in a hydraulic system to do work.
  • the inlet and / or outlet valve is advantageously as a
  • Such a valve ensures on the one hand a high degree of robustness and a good sealing behavior.
  • such a valve is inexpensive to produce and easy to integrate into the hydraulic piston pump, namely by means of the above-explained "forward assembly".
  • a vehicle brake system is provided with a hydraulic piston pump according to the invention.
  • the vehicle brake system according to the invention comprises a hydraulic
  • Such a vehicle brake system for example, an anti-lock braking system (ABS), a traction control system (TCS - traction control system), an electronic stabilization program (ESP) or a
  • EHB electrohydraulic braking system
  • FIG. 1 shows a perspective view of a first exemplary embodiment of a valve-closure-body-retaining unit of the present invention
  • valve according to the invention 2 is a sectional perspective view of a valve according to the invention with a valve closure member-retaining means unit of FIG. 1,
  • FIG. 3 shows a longitudinal section through an inventive valve with a
  • Valve-closing member-retaining means unit according to FIG. 1, and
  • FIG. 4 is a perspective view of a second embodiment of a valve-closing-body retaining means unit of FIG
  • Figs. 1, 2 and 3 show a valve 10 of a hydraulic piston pump of a vehicle brake system.
  • the valve 10 (see Figures 2 and 3) comprises a
  • Valve seat 12 in which a circular valve opening 14 is formed. Furthermore, the valve 10 comprises a valve closing body retaining means unit 16 (see in particular Fig. 1), which consists of a valve closing body 18 and a
  • Retaining means 20 is integrally formed as a plastic injection molded part.
  • the retaining means 20 has a connecting element 22 in the form of a cylindrical shoulder 22, which protrudes through the valve opening 14, and four V-shaped, elastically formed webs 24, which are substantially uniformly spaced apart and arranged on an outer periphery 26 of the cylindrical shoulder 22 ,
  • the valve closing body 18 is designed in the form of a substantially circular plate 18. On one side 27 of the plate 18, which faces the valve opening 14, the cylindrical shoulder 22 is connected to the valve closing body 18. The connecting element 22 thus connects the
  • the V-shaped webs 24 each have a first and a second
  • the two legs 28, 30 close in the region of the two legs 28, 30 connecting ends a Wnkel ⁇ .
  • the legs 28, 30 are mutually designed resilient, so that the angle ⁇ is compressed or spread during the closing or opening of the valve opening 14.
  • valve-closing-body retaining means unit 16 and the valve seat 12 are fitted into each other by means of a so-called "forward assembly"
  • the valve seat 12 has a front and a back 32, 34.
  • the valve closing-body retaining means unit 16 is inserted with the retaining means 20, thus with the webs 24, in the valve opening 14 until the valve closing body 18 with the side 27, which faces the valve opening 14, on the front 32 of the valve seat 12.
  • Valve seat 12 rests, forms a sealing surface 36, which accomplishes a substantially fluid-tight closure in the closed state of the valve 10.
  • the webs 24 are presently arranged so that they during the
  • V-shaped elastically formed webs 24 act as a spring and
  • valve closing body 18 applies the valve closing body 18 with a tensile force as restoring force and urge in this way the valve closing body 18 against the
  • the valve 10 according to the invention is designed here as an inlet valve of the hydraulic piston pump.
  • the hydraulic piston pump comprises a piston which can be moved in and out of a cylinder and which is actuated by means of a piston
  • Eccentric is driven.
  • a negative pressure is generated in a pressure area inside the cylinder.
  • this negative pressure is greater than the restoring force applied to the valve closing body 18, the valve closing body 18 is lifted from the valve seat 12 and fluid flows from a fluid inlet through the valve port 14 into the valve seat 12 Pressure range (see arrow in Fig. 3).
  • the present valve 10 may also be configured as an exhaust valve 10 of the hydraulic piston pump.
  • the V-shaped webs 24 deform correspondingly to the distance covered by the valve closing body 18.
  • the second legs 30 slide elastically outwardly on the rear side 34 of the valve seat 12 and pull the first legs 28 at which the two legs connecting ends also in this direction. In this case, the angle ⁇ enclosed by the two legs 28, 30 is spread.
  • FIG. 4 illustrates a valve-closing-body retaining means unit 16 of a valve 10 in which the valve-closing body 18 is convex with respect to FIG
  • Valve opening 14 is designed.
  • the valve closure member 18 in the form of a plate 18 is slightly overpressed, that is slightly overstretched.
  • the retaining means 20 shown in FIG. 4 has three webs 24, which are not designed V-shaped, but only a substantially straight leg 30 - also called foot 30 - include.
  • the one end 38 of the leg 30 is elastically supported on the outer periphery 26 of the connecting element 22 and the other end 40 klippst or hooks when joining the valve-closing-restraint center unit 16 with the valve seat 12 on the back 34 of the
  • Valve seat 12 a In the "forward assembly" of the valve 10, the webs 24 are first compressed and then hook on the valve seat 12 when they come out of the valve opening 14.
  • Valve-closure-retaining means unit 16 are easily mounted with the valve seat 12.
  • valve 10 ensures a good sealing effect with a fast closing behavior and is easy to integrate into a hydraulic piston pump.
  • the valve 10 according to the invention is illustrated here as a plate valve 10, since such a valve 10 ensures a small dead volume in the piston pump.
  • other valve geometries are conceivable, such as spherical, hemispherical or conical valves.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Check Valves (AREA)

Abstract

Dans une soupape (10), en particulier une soupape d'une pompe hydraulique à piston comprenant un siège de soupape (12) dans lequel est formée une ouverture de soupape (14), et qui présente un côté avant et un côté arrière (32, 34), un corps obturateur de soupape (18) qui est disposé sur le côté avant (32) du siège de soupape (12) pour ouvrir et fermer sélectivement l'ouverture de soupape (14), et un moyen de retenue (20) qui tient le corps de fermeture de soupape (18) par rapport au siège de soupape (12), le moyen de retenue (20) est disposé sur le côté arrière (34) du siège de soupape (12).
PCT/EP2011/062088 2010-09-13 2011-07-14 Soupape, en particulier pour une pompe hydraulique à piston Ceased WO2012034734A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201180043958.3A CN103097717B (zh) 2010-09-13 2011-07-14 阀、其制造方法及具有该阀的液压活塞泵
KR1020137006270A KR20130139868A (ko) 2010-09-13 2011-07-14 유압 피스톤 펌프의 밸브
EP11734071.1A EP2616664A1 (fr) 2010-09-13 2011-07-14 Soupape, en particulier pour une pompe hydraulique à piston

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010040617A DE102010040617A1 (de) 2010-09-13 2010-09-13 Ventil, insbesondere einer hydraulischen Kolbenpumpe
DE102010040617.1 2010-09-13

Publications (1)

Publication Number Publication Date
WO2012034734A1 true WO2012034734A1 (fr) 2012-03-22

Family

ID=44628795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/062088 Ceased WO2012034734A1 (fr) 2010-09-13 2011-07-14 Soupape, en particulier pour une pompe hydraulique à piston

Country Status (5)

Country Link
EP (1) EP2616664A1 (fr)
KR (1) KR20130139868A (fr)
CN (1) CN103097717B (fr)
DE (1) DE102010040617A1 (fr)
WO (1) WO2012034734A1 (fr)

Cited By (1)

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US10314960B2 (en) 2014-02-27 2019-06-11 Fresenius Medical Care Deutschland Gmbh Blood treatment cassette having a sterilization opening and an associated closure, and blood treatment apparatus

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CN104816884B (zh) * 2015-04-07 2017-04-26 北京泰克美高新技术有限公司 一种内置充气装置的铝箔包装袋

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EP2616664A1 (fr) 2013-07-24
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CN103097717B (zh) 2015-11-25
DE102010040617A1 (de) 2012-03-15

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