GB2476157A - Piston pump for a hydraulic vehicle brake system - Google Patents
Piston pump for a hydraulic vehicle brake system Download PDFInfo
- Publication number
- GB2476157A GB2476157A GB1020661A GB201020661A GB2476157A GB 2476157 A GB2476157 A GB 2476157A GB 1020661 A GB1020661 A GB 1020661A GB 201020661 A GB201020661 A GB 201020661A GB 2476157 A GB2476157 A GB 2476157A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston
- valve
- pump
- seat part
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 abstract description 3
- 230000003134 recirculating effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0421—Cylinders
-
- 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
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0452—Distribution members, e.g. 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
- F04B53/1002—Ball valves
- F04B53/1007—Ball valves having means for guiding the closure member
-
- 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
- F04B53/1087—Valve seats
-
- 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
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
- F04B53/126—Ball 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A piston pump (recirculating pump) 1 for a hydraulic vehicle brake system comprises a cylinder 3 which is open at both ends, eg it is a simple tube without steps or undercuts. The end of the cylinder 3 remote from the pump actuating eccentric 4 is provided with a separate disk-like outlet valve seat part 13 which may be made by deep drawing from sheet metal. The seat part 13 may have an apertured dome 15 that receives, with only slight radial play, a spring-loaded valve ball 19. A radial flange 23 of the seat part 13 rests against one end of the cylinder tube 3. A number of flow grooves 24 may be provided in the face of the seat part 13 remote from the cylinder 3.
Description
Description Title
Piston pump The invention relates to a piston pump for a hydraulic vehicle brake system having the features of the preamble of claim 1. The piston pump is provided in particular for a slip-regulated, hydraulic vehicle brake system, where such pumps are also referred to as recirculating pumps, or in an electrohydraulic, i.e. external-energy vehicle brake system.
Background art
Such piston pumps are known. They generally comprise a cylinder, in which a piston is accommodated in an axially displaceable manner. The piston usually projects from one end of the cylinder and lies with an end face projecting from the cylinder against the circumference of a rotatable eccentric. The eccentric of known piston pumps is a cylinder that may be set in rotation about an eccentric axis of rotation, wherein the axis of rotation of the eccentric cuts a (central longitudinal) axis of the cylinder at right angles. By rotation of the eccentric the piston is set in a reciprocating motion in the cylinder that brings about the delivery of fluid in a manner known from piston pumps. In a vehicle brake system the fluid delivered by the piston pump is brake fluid.
An end -remote from the eccentric -of the cylinders of known piston pumps for hydraulic vehicle brake systems has a base, which is an integral part of the cylinder and has a hole as a passage of a pump valve of the piston pump. The pump valve is an inlet-or outlet valve, which controls a throughflow direction of the piston pump and is commonly a non-return valve. The one, eccentric-remote end of the cylinder of known piston pumps is closed, except for the valve passage, by the cylinder base that is an integral part of the cylinder. An example of such a piston pump is disclosed in DE-OS 10 2006 035 055 Al.
Disclosure of the invention
In the piston pump according to the invention having the features of claim 1, the cylinder itself is open at both ends, i.e. does not have a cylinder base formed integrally therewith or the like. The cylinder may therefore in the simplest case be a tube, preferably without undercuts, steps or the like. The tube may be cut to length from rod material, the invention enabling a cost-effective cylinder that may, apart from the cutting-to-length from rod material, be manufactured without cutting.
One end of the cylinder of the piston pump according to the invention is, with the exception of a valve passage, closed by means of a valve seat part that is manufactured separately from the cylinder and disposed during assembly of the piston pump on one end of the cylinder. The valve seat part may for example be manufactured easily in the form of a perforated disk by punching. Equally cost-effective is manufacture of the valve seat part in the form of a shaped part, for example a deep-drawn part, in particular from sheet metal.
Advantageous refinements and developments of the invention indicated in claim 1 are the subject matter of the sub-claims.
Brief description of the drawings
There now follows a detailed description of the invention with reference an embodiment that is represented in the drawings. The drawings show: Figure 1 an axial section of a piston pump according to the invention; and Figure 2 a valve seat part of the piston pump according to the invention of Figure 1 in perspective half-sectional representation.
Embodiment of the invention The piston pump 1 according to the invention that is represented in the drawings comprises a cylindrical piston 2, which is guided in an axially displaceable manner in a cylinder 3. The piston 2 projects at one end from the cylinder 3 and rests with its end face against a circumference of a rotatable, cylindrical eccentric 4. By rotation of the eccentric 4 the piston 2 is set in axial reciprocating motion in the cylinder 3.
On an end of the piston 2 remote from the eccentric a tubular piston part 5 is mounted, which in its peripheral wall has holes 6 to let in brake fluid. The piston part 5 may be conceived as a component part of a multi-part piston 2, 5. On its end remote from the piston 2 and situated in the cylinder 3, the piston part 5 has a conical valve seat 7 of an inlet valve 8 of the piston pump 1. The inlet valve 8 is a spring-loaded non-return valve having a valve ball 9, which is pressed towards the valve seat 7 by a valve closing spring 10. The valve closing spring 10 is supported in a valve cage 11, which is mounted on an end of the piston part 5 remote from the piston 2. The valve ball 9 is also accommodated in the valve cage 11. The valve cage 11 is made of plastics material and has a circumferential sealing lip 12 that seals the piston 2, 5 in the cylinder 3.
The cylinder 3 is introduced into a pump bore 32 in a pump housing 33. The pump housing 33 may be a dedicated housing for the piston pump 1. In the illustrated embodiment of the invention, the pump housing 33 is formed by a hydraulic block of the vehicle brake system (otherwise not represented), in which the pump bore 32 is provided.
Besides the piston pump 1, further hydraulic components such as solenoid valves, non-return valves, hydraulic accumulators are installed in the hydraulic block and hydraulically connected to one another by bores in the hydraulic block. Such hydraulic blocks are known from slip-regulated hydraulic vehicle brake systems and are not to be described in detail here. The pump bore 32 opens out at one end into an eccentric space 34, in which the eccentric 4 is accommodated. The other end of the pump bore 32 is closed by the cylinder head 26, which is inserted into a mouth of the pump bore 32 and fastened by means of a circumferential caulked joint (not represented) The cylinder 3 is a simple tube without steps, undercuts or the like. On an end of the cylinder 3 remote from the eccentric 4 a valve seat part 13 of an outlet valve 14 of the piston pump 1 is disposed. The valve seat part 13, which is separately represented in Figure 2 in a perspective half-section, is a shaped part, in the illustrated embodiment of the invention being a profiled perforated disk manufactured by deep drawing from sheet metal. In its centre the valve seat part 13 has a dome 15 with a central hole that forms a valve passage 16. The dome is elevated in the direction of the piston 2, the valve passage 16 being adjoined by a conical portion 17 and an approximately cylindrical portion that forms a guide 18 for a shut-off body 19 of the outlet valve 14. In the illustrated embodiment of the invention the shut-off body 19 is a valve ball, which is pressed towards the valve passage 16 by a helical compression spring as valve closing spring 20. The outlet valve 14 of the piston pump 1, like the inlet valve 8, is a spring-loaded non-return valve.
The cylindrical and/or tubular portion of the dome 15 of the valve seat part 13 that forms the guide 18 for the valve ball forming the shut-off body 19 may be comparatively close-tolerance. By this is meant that an inside diameter of the tubular guide 18 is only slightly larger than a diameter of the valve ball forming the shut-off body 19 of the outlet valve 14. consequently the valve ball, when it is lifted off a valve seat in the open state of the outlet valve 14, is capable of only slight radial movement, this improving a closing performance of the outlet valve 14.
The tubular guide 18 of the valve seat part 13 is adjoined by an annular-disk-shaped portion 21, which at its outer circumference verges via an annular step 22 into a radial flange 23. The radial flange 23 rests sealingly against an annular end face of the cylinder 3. At a side of the annular-disk-shaped portion 21 remote from the cylinder 3 a number of flow-off grooves 24 extend radially outwards from the dome 15. The flow-off grooves 24 are semicylindrical grooves, which are formed by deep drawing and are open at both ends, i.e. both in the direction of the dome 15 and in the direction of the annular step 22.
The valve seat part 13 is pressed into a cylindrical countersunk portion 25 of a cylinder head 26, which forms a valve housing of the outlet valve 14. The cylinder head 26 has an axial blind hole 27, in which the valve ball forming the shut-off body 19 and the valve closing spring 20 of the outlet valve 14 are accommodated.
The annular step 22 of the valve seat part 13 encloses an annular collecting channel 28 at the bottom of the countersunk portion 25 of the cylinder head 26, into which collecting channel 28 the flow-off grooves 24 open. By means of openings 29 in a wall 30 surrounding the countersunk portion 25 the collecting channel 28 communicates with a pump outlet 31. Brake fluid, which during a reciprocating motion of the piston 2 is displaced from the cylinder 3 through the outlet valve 14, flows through the valve passage 16 into the dome 15 and, from there, on through the flow-off grooves 24 into the collecting channel 28 and, from there, through the openings 29 into the pump outlet 31. 3D
The cylinder head 26 is mounted by its countersunk portion onto the end of the cylinder 3. The valve seat part 13, which is pressed into the countersunk portion 25 of the cylinder head 26, holds the parts of the outlet valve 14, namely the valve ball forming the shut-off body 19 and the valve closing spring 20, in the cylinder head 26. In this way, an easy-to-handle preassembly unit of the outlet valve 14 disposed in the cylinder head 26 is formed. The cylinder head 26, as already mentioned, forms a valve housing of the outlet valve 14. The pump inlet valve 8 and the pump outlet valve 14 form pump valves that control a throughflow direction of the brake fluid through the piston pump 1.
Disposed in the cylinder 3 is a helical compression spring as piston spring 35, which is supported against the valve seat part 13 of the outlet valve 14 and presses against an annular edge 36 of the valve cage 11. The piston spring 35 holds the valve cage 11 against the piston part 5 and, where necessary, also the piston part 5 against the piston 2. The piston spring 35 keeps the piston 2 in contact with the circumference of the eccentric 4.
In an extension of its eccentric-side end of the cylinder 3 a tubular filter 37 is disposed in the pump bore 32 and surrounds the piston 2 at the level of the piston part 5.
The filter 37 comprises a filter screen 38, a tubular filter cloth or some other filter material, which is embedded in a filter frame 39. The filter frame 39 is made of plastics material that is extruded round the filter screen 33.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009054520A DE102009054520A1 (en) | 2009-12-10 | 2009-12-10 | piston pump |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201020661D0 GB201020661D0 (en) | 2011-01-19 |
GB2476157A true GB2476157A (en) | 2011-06-15 |
Family
ID=43531547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1020661A Withdrawn GB2476157A (en) | 2009-12-10 | 2010-12-06 | Piston pump for a hydraulic vehicle brake system |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN102094808A (en) |
DE (1) | DE102009054520A1 (en) |
FR (1) | FR2953890A1 (en) |
GB (1) | GB2476157A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015197307A1 (en) * | 2014-06-26 | 2015-12-30 | Robert Bosch Gmbh | Discharge valve comprising a receiving element |
CN109476293A (en) * | 2016-07-25 | 2019-03-15 | 怡来汽车电子底盘系统有限公司 | Piston pump for motor vehicle braking system |
GB2569324A (en) * | 2017-12-13 | 2019-06-19 | Continental Automotive Systems Srl | Valve cartridge |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5880402B2 (en) * | 2012-11-15 | 2016-03-09 | 株式会社アドヴィックス | Brake hydraulic pressure control device |
DE102012223186A1 (en) * | 2012-12-14 | 2014-06-18 | Robert Bosch Gmbh | Piston of a piston pump of a vehicle brake system |
CN103661336B (en) * | 2013-12-18 | 2017-04-19 | 万向钱潮(上海)汽车系统有限公司 | Plunger pump for automobile braking system |
DE102014220368A1 (en) * | 2014-10-08 | 2016-04-14 | Robert Bosch Gmbh | Piston pump for a hydraulic vehicle brake system |
DE102016204002A1 (en) * | 2016-03-11 | 2017-09-14 | Robert Bosch Gmbh | Piston pump, in particular as a pressure generator in an electronic slip-controllable vehicle brake system |
CN112392717A (en) * | 2020-10-27 | 2021-02-23 | 杭州群科荟科技有限公司 | Valve sleeve for plunger pump |
CN112392710B (en) * | 2020-10-27 | 2022-06-17 | 杭州群科荟科技有限公司 | Automobile braking system plunger pump and friction force detection method thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407978A1 (en) * | 1994-03-10 | 1995-09-14 | Teves Gmbh Alfred | Piston pump for vehicle hydraulic brake systems |
DE19709586A1 (en) * | 1997-03-08 | 1998-09-10 | Itt Mfg Enterprises Inc | Vehicle brake hydraulic pump |
US6193481B1 (en) * | 1997-05-21 | 2001-02-27 | Robert Bosch Gmbh | Piston pump |
US6497562B1 (en) * | 1997-11-14 | 2002-12-24 | Continental Teves Ag & Co., Ohg | Piston pump |
US6764286B2 (en) * | 2001-10-29 | 2004-07-20 | Kelsey-Hayes Company | Piston pump with pump inlet check valve |
US20060083629A1 (en) * | 2004-10-15 | 2006-04-20 | Continental Teves Ag & Co. Ohg | Piston pump |
WO2006051066A1 (en) * | 2004-11-12 | 2006-05-18 | Continental Teves Ag & Co Ohg | Electrohydraulic unit |
DE102006027555A1 (en) * | 2006-06-14 | 2007-12-20 | Robert Bosch Gmbh | Piston pump for e.g. conveying brake fluid in vehicle, has pressure chamber arranged between inlet valve and exhaust valve that includes base unit for supporting prestressing device and sealing seat that is arranged at disk unit |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19732791A1 (en) * | 1997-07-30 | 1999-02-04 | Bosch Gmbh Robert | Piston pump |
DE102004037140A1 (en) * | 2004-07-30 | 2006-03-23 | Robert Bosch Gmbh | Piston pump with improved efficiency |
DE102005042197A1 (en) * | 2005-09-06 | 2007-03-08 | Robert Bosch Gmbh | Piston pump with improved piston |
DE102006010674A1 (en) * | 2005-09-14 | 2007-03-15 | Continental Teves Ag & Co. Ohg | Piston pump for use in motor vehicle, has hub with structure that produces force directed to piston axis, where structure causes elastic deformation of body for strengthened and dosed seal contact pressure between piston and cylinder |
DE102006027514A1 (en) * | 2006-06-14 | 2007-12-20 | Robert Bosch Gmbh | Piston pump for discharging e.g. fuel, has piston element with two pistons, inlet valve that is arranged in piston, and centric channel that is arranged in piston in longitudinal direction of piston for suction of fluid |
DE102006035055A1 (en) | 2006-07-28 | 2008-01-31 | Robert Bosch Gmbh | Sealing and guiding unit for piston, has guide bush for guiding piston, and pretensioning unit arranged outside internal sealing region of sealing unit and bearing radially directed force on internal sealing region |
-
2009
- 2009-12-10 DE DE102009054520A patent/DE102009054520A1/en active Pending
-
2010
- 2010-12-06 GB GB1020661A patent/GB2476157A/en not_active Withdrawn
- 2010-12-08 CN CN2010105859884A patent/CN102094808A/en active Pending
- 2010-12-09 FR FR1060316A patent/FR2953890A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407978A1 (en) * | 1994-03-10 | 1995-09-14 | Teves Gmbh Alfred | Piston pump for vehicle hydraulic brake systems |
DE19709586A1 (en) * | 1997-03-08 | 1998-09-10 | Itt Mfg Enterprises Inc | Vehicle brake hydraulic pump |
US6193481B1 (en) * | 1997-05-21 | 2001-02-27 | Robert Bosch Gmbh | Piston pump |
US6497562B1 (en) * | 1997-11-14 | 2002-12-24 | Continental Teves Ag & Co., Ohg | Piston pump |
US6705846B2 (en) * | 1997-11-14 | 2004-03-16 | Continental Teves Ag & Co. Ohg | Piston pump |
US6764286B2 (en) * | 2001-10-29 | 2004-07-20 | Kelsey-Hayes Company | Piston pump with pump inlet check valve |
US20060083629A1 (en) * | 2004-10-15 | 2006-04-20 | Continental Teves Ag & Co. Ohg | Piston pump |
WO2006051066A1 (en) * | 2004-11-12 | 2006-05-18 | Continental Teves Ag & Co Ohg | Electrohydraulic unit |
DE102006027555A1 (en) * | 2006-06-14 | 2007-12-20 | Robert Bosch Gmbh | Piston pump for e.g. conveying brake fluid in vehicle, has pressure chamber arranged between inlet valve and exhaust valve that includes base unit for supporting prestressing device and sealing seat that is arranged at disk unit |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015197307A1 (en) * | 2014-06-26 | 2015-12-30 | Robert Bosch Gmbh | Discharge valve comprising a receiving element |
KR20170023008A (en) * | 2014-06-26 | 2017-03-02 | 로베르트 보쉬 게엠베하 | Discharge valve comprising a receiving element |
US10550948B2 (en) | 2014-06-26 | 2020-02-04 | Robert Bosch Gmbh | Discharge valve comprising a receiving element |
KR102353415B1 (en) * | 2014-06-26 | 2022-01-21 | 로베르트 보쉬 게엠베하 | Discharge valve comprising a receiving element |
CN109476293A (en) * | 2016-07-25 | 2019-03-15 | 怡来汽车电子底盘系统有限公司 | Piston pump for motor vehicle braking system |
GB2569324A (en) * | 2017-12-13 | 2019-06-19 | Continental Automotive Systems Srl | Valve cartridge |
GB2569324B (en) * | 2017-12-13 | 2019-12-18 | Continental Automotive Systems Srl | Valve cartridge |
Also Published As
Publication number | Publication date |
---|---|
FR2953890A1 (en) | 2011-06-17 |
GB201020661D0 (en) | 2011-01-19 |
DE102009054520A1 (en) | 2011-06-16 |
CN102094808A (en) | 2011-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |