KR20110070818A - Fluid inlet device for feeding a fluid into a piston pump - Google Patents

Fluid inlet device for feeding a fluid into a piston pump Download PDF

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Publication number
KR20110070818A
KR20110070818A KR1020100129798A KR20100129798A KR20110070818A KR 20110070818 A KR20110070818 A KR 20110070818A KR 1020100129798 A KR1020100129798 A KR 1020100129798A KR 20100129798 A KR20100129798 A KR 20100129798A KR 20110070818 A KR20110070818 A KR 20110070818A
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KR
South Korea
Prior art keywords
fluid inlet
piston
inlet device
fluid
valve
Prior art date
Application number
KR1020100129798A
Other languages
Korean (ko)
Inventor
올리버 게르트너
볼프강 슐러
Original Assignee
로베르트 보쉬 게엠베하
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Publication of KR20110070818A publication Critical patent/KR20110070818A/en

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    • 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
    • F04B1/0408—Pistons
    • 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
    • F04B53/12—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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/148—Pistons, piston-rods or piston-rod connections the piston being provided with channels which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports

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  • 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

The fluid inlet device 42 for supplying fluid into the piston pump 10 with the piston 16 is formed as part of the piston 16 and has at least one inlet groove formed axially with respect to the piston 16. Having a 44, the elongated inlet groove 44 is disposed throughout the circumference of the piston 16.

Figure P1020100129798

Description

Fluid inlet device for feeding a fluid into a piston pump}

The present invention relates to a fluid inlet device formed as part of a piston for supplying fluid into a piston pump having a piston. The invention also relates to a piston pump with the fluid inlet device and a vehicle brake device with the piston pump.

Hydraulic devices, which are a component of modern vehicle brake devices, are used to provide controlled brake pressure to the brake devices of a vehicle, for example in vehicles such as passenger cars or vans. For regulating supply of the brake pressure the hydraulic device has a pump, the pump is generally a piston pump, in which the piston can be moved in the cylinder. The movement of the piston consists of two cycles. Fluid to be conveyed in the first cycle, for example brake fluid, is sucked through the inlet valve. In the second cycle the fluid is discharged through the discharge valve. Such piston pumps are known, for example, from 10 2005 017 131 A1. In general, the fluid of the piston pump is supplied through the lateral bore in the piston.

DE 100 19 403 A1 also discloses a check valve for a piston pump of a vehicle brake device with a valve closing body, a valve spring and a support. The check valve is made in one piece by plastic injection molding and is connected to the piston of the piston pump via a support. The integral construction reduces manufacturing costs and simplifies the manufacture or assembly of the piston pump. The deformation of the piston has axial grooves on the circumference and radial grooves on the end face for supplying brake fluid into the valve. The radial grooves extend to the check valve through the through holes in the circumferential wall of the deformation part.

It is an object of the present invention to provide a fluid inlet device for a piston pump that can be manufactured inexpensively and at the same time ensures good inlet properties of the fluid into the inlet valve of the piston pump. Another object of the present invention is to provide a piston pump including the fluid inlet device and a vehicle brake device having the piston pump.

This object is achieved by the fluid inlet device according to the invention. The object is also achieved by a piston pump comprising a fluid inlet device according to the invention and by a vehicle brake device with this piston pump.

According to the invention, a fluid inlet device for supplying a fluid into a piston pump with a piston, the fluid inlet device being formed as part of the piston and having at least one inlet groove formed axially with respect to the piston, The groove is formed with a fluid inlet device disposed throughout the circumference of the piston.

The piston pump includes a cylinder with an in-cylinder chamber and a piston that can be inserted into and taken out of the in-cylinder chamber. The piston limits the high pressure region in the cylinder inner chamber. The piston pump has a fluid inlet device with an inlet valve according to the invention on the inlet side and a outlet valve on the outlet side for the inlet and outlet of the fluid into the high pressure region. When the piston is withdrawn from the cylinder, low pressure builds up in the high pressure region, and fluid flows into the high pressure region through the fluid inlet device and the open inlet valve. When the piston is inserted into the cylinder, the inlet valve is closed in reverse, and the fluid is pressurized through the open outlet valve into the hydraulic system for operation execution.

The fluid here is a liquid, gas or liquid-gas mixture, in particular brake fluid.

The fluid inlet device according to the invention is formed as part of a piston, that is to say that the fluid inlet device is inserted into and withdrawn from the cylinder and participates in the formation of overpressure and low pressure in the high pressure region. The fluid inlet device is preferably manufactured as a separate part, in particular as a deformation part or an injection molded part. The fluid inlet device forms one unit with the other piston.

The fluid inlet device has at least one inlet groove formed axially with respect to the piston pump. The elongated at least one inlet groove is arranged throughout the piston circumference. The part forming the fluid inlet device is provided with an elongated opening extending in the longitudinal direction of at least one slot or piston. This provides a relatively large inlet face for the fluid, thus achieving good pressure building dynamics. When the piston is withdrawn from the cylinder and the high pressure region is at a low pressure, fluid is drawn into the piston pump through the fluid inlet device perpendicular to the longitudinal direction of the piston pump. Substantially no turbulence is formed.

According to the invention there is provided a fluid inlet device which can be manufactured inexpensively, in particular in the form of deformations or injection moldings, can be simply connected to the rest of the pistons and can be mounted in the piston pump.

According to a first preferred refinement of the fluid inlet device according to the invention, the webs are arranged next to the elongated at least one inlet groove, the webs being radially elastically formed.

In this refinement the fluid inlet device has a certain number of elongated inlet grooves, the inlet grooves being axially limited to the piston by webs elongated in one extending direction. That is, the elongated inlet grooves are alternately arranged with the elongated webs.

The elongated webs are radially elastically formed and can be combined in a non-fit-fit manner with the rest of the piston (eg hollow piston rod), such as by fixing to the hollow chamber of the remainder formed in the beaker shape. .

According to a second preferred refinement of the fluid inlet device according to the invention, the fluid inlet device has 2 to 10, in particular 5 to 7 elongated inlet grooves.

By this refinement, the fluid inlet device has 2 to 10, in particular 5 to 7 inlet grooves and a corresponding number of webs. This achieves good fluid inlet- and pressure-forming dynamics with a sufficient number and size of inlet grooves. The fluid inlet device can make a stable and fixed connection with the other part of the piston (piston rod) by fixing the webs to the hollow chamber of the other part.

According to a third preferred refinement of the fluid inlet device according to the invention, the fluid inlet device has a shoulder defining an inner and an outer step, in which the webs are arranged in an inner step, the inner step of which is a hollow chamber of the piston. Is inserted into.

The fluid inlet device has a shoulder on the side facing the other part of the piston, which shoulder forms the inner and outer steps by the cross section of the device. In this refinement the elongated webs are formed in the inner step and inserted into the hollow chamber of another part. The inner wall of the other part is disposed on the web and limits the shoulder by the end face. This allows the fluid inlet device to be particularly well fixed by the housing of the piston.

According to a fourth preferred refinement of the fluid inlet device according to the invention, a support device for supporting the valve closing body is formed in the fluid inlet device.

Preferably the support device in which the valve closing body, such as a ball or plate, can be movable is formed integrally with the fluid inlet device, in particular in the form of an integral deformation or injection molding. The device can be manufactured particularly inexpensively and can simply be mounted in the piston pump with the corresponding fluid inlet device. The support device is also called a valve housing, valve cage or valve cover.

According to a fifth preferred refinement of the fluid inlet device according to the invention, the support device has at least one locking hook for securing the corresponding pressing means.

The locking hook is suitable for securing a corresponding pressing means, for example a compression spring, in particular a helical spring, a helical spring or a leaf spring, for applying the pressure defined by the valve closing body. When a pressing means, such as a helical spring, is secured by the locking hook, the spring supports the locking hook and the support device radially inward together at the circular end and allows good guidance of the valve closing body within the support device.

According to a sixth preferred refinement of the fluid inlet device according to the invention, a valve seat is formed in the fluid inlet device and the valve closing body can pressurize the valve seat.

In this refinement, the valve seat is preferably integrally formed in the fluid inlet device, in particular by injection molding. The valve closing body may press the valve seat to close the inlet valve. The fluid inlet device forms one part together with the valve seat and can be manufactured inexpensively.

According to a seventh preferred refinement of the fluid inlet device according to the invention, a sealing member, in particular a high pressure sealing ring, is formed in the fluid inlet device.

The sealing member is preferably integrally formed with the fluid inlet device, such as the deformable part or the injection molded part. The sealing member is formed to limit the high pressure region in the cylinder in a substantially fluid sealed manner with respect to the piston. In addition, the sealing member ensures good guidance of the piston in the cylinder.

Another object of the invention is achieved by a piston pump comprising a fluid inlet device according to the invention.

The piston pump can be manufactured inexpensively, in particular by using a fluid inlet device in the form of a deformable or injection molded part, and can be simply assembled in the manufacturing process. By using the fluid inlet device according to the present invention, a compact structure as a whole becomes possible. In addition, the inlet grooves according to the invention ensure an optimized inlet structure or good flow characteristics and minimize the turbulence or vortex of the fluid flowing into the piston pump.

A further object of the invention is achieved by a vehicle brake device with a piston pump comprising a fluid inlet device according to the invention.

The vehicle brake device comprises a piston pump that can be manufactured at low cost and at the same time enables reliable operation by good inflow characteristics when transferring fluid into the piston pump.

Embodiments of the solution according to the invention are described below with reference to the accompanying drawings.

1 is a longitudinal sectional view of a piston pump according to the prior art;
FIG. 2 is an enlarged view of part II of FIG. 1. FIG.
3 is a longitudinal sectional view of the piston pump according to the invention with the corresponding fluid inlet device according to section VV in FIG. 5;
4 is a perspective view of a first embodiment of a fluid inlet device according to the present invention;
5 is a perspective view of a second embodiment of a fluid inlet device according to the present invention;

1 and 2 show a piston pump 10 according to the prior art, in particular the piston pump comprising a cylinder 14 and a piston device 12 which is movably supported within the cylinder. Include. The piston device 12 also includes an inlet valve 18 and an outlet valve 20. The valves 18, 20 allow fluid to flow through the inlet 22-the horizontal bore in the piston — as the piston 16 strokes within the cylinder 14. Suction into 24 and outlet of the fluid under pressure 26 back out of the high pressure region 24. In this case, the fluid is brake fluid.

The piston 16 is prestressed elastically in the axial direction by a return spring 28 in the high pressure region 24. 1, the left end of the return spring 28 is supported on the end face of the cylinder 14, and the right end presses the spring seat 30. Since the spring seat 30 is fixedly coupled to the piston 16, the return spring 28 presses the piston 16 through the spring seat 30.

A sealing member 32 is disposed between the piston 16 and the cylinder 14, and the high pressure region 24 in the cylinder 14 is sealed by the sealing member. The sealing member 32 is formed in a ring shape and surrounds the outer surface of the piston 16. At the outer surface the sealing member 32 is fixedly supported by a valve cage or valve housing 34 of the inlet valve 18, which fits on the piston 16. A shoulder seat spring seat 30 is formed in the valve housing 34. The sealing member 32 thus supported is in radially inward contact with the inner surface of the cylinder 14 so that it can slide along and seal therein.

The valve housing 34 is formed as a cage in the form of a beaker, and a spiral return spring 36 is disposed inside the cage, which presses the closing body 38 in the form of a ball. This causes the closing body 38 to contact the valve seat 40 formed on the end side of the piston 16 (in the operating state shown in FIGS. 1 and 2). When the piston 16 is withdrawn from the cylinder 14 to the right with respect to FIG. 1, the closing body 38 is separated from the valve seat 40 against the force of the return spring 36. In this movement the inlet valve 18 is opened and the fluid is sucked into the high pressure region 24. The intake of fluid takes place via an inlet 22 formed as a transverse bore in the piston 16.

3 shows a piston pump 10 according to the invention. The piston pump 10 comprises a piston device 12 consisting of a cylinder 14 and a piston 16 movable therein-as in the prior art. In addition, an inlet valve 18 is arranged in the piston 16 to supply fluid into the high pressure region 24 of the cylinder 14. The cylinder 14 includes a discharge valve (not shown) through which the fluid is pumped out of the high pressure region 24 of the cylinder 14 into a hydraulically connected back system. The piston pump 10 is surrounded by a pump housing 65.

The piston 16 in this case consists of a cylindrical piston rod 66 which partially receives two parts, the fluid inlet device 42 according to the invention of FIG. 4 and the fluid inlet device 42. The webs 46 of the fluid inlet device 42 are elastically inserted into the hollow chamber 54 of the piston rod 66, thereby being supported in a non-fit-fit manner by the piston rod 66. The piston rod 66 and the fluid inlet device 42 form one piston unit.

The fluid inlet device 42 includes an elongated inlet groove 44 having a relatively large recess for supplying fluid to the inlet valve 18 of the piston pump 10. The inlet groove 44 is arranged such that fluid can flow through the inlet 22-recess in the pump housing 65-directly through the inlet groove 44 in the radial direction and into the inlet valve 18.

An inlet valve 18 is also integrally formed on the end side of the fluid inlet device 42. The inlet valve 18 comprises a support device 58 for receiving a valve ball 38 and a valve seat 40 according to the feature of FIG. 4. The support device 58 comprises four support webs 62, on which support hooks 64 are arranged. The support webs 62 elastically secure the valve ball 38 and ensure that the valve ball can be separated from the valve seat 40. A helical spring 36 that applies force to the valve ball 38 and presses the valve ball against the valve seat 40 is secured by a locking hook 64.

The piston 16 is elastically prestressed by a return spring 28 in the high pressure region 24. When the piston 16 is withdrawn from the cylinder 14, a low pressure is created in the high pressure region 24, thereby separating the valve ball 38 from the valve seat 40. Fluid flows into the high pressure region 24 through the inlet 22, the inlet grooves 44 of the fluid inlet device 42, and the open inlet valve 18.

When the piston 16 is moved into the cylinder 14 by an eccentric drive (not shown), the valve ball 38 is pressed against the valve seat 40 by the helical spring 36; Inlet valve 20 is closed. At the same time, the discharge valve is opened by the pressure formed in the high pressure region 24, and the fluid is discharged out of the high pressure region 24.

In addition, a high pressure sealing ring 56 is integrally formed on the outer surface of the fluid inlet device 42, the high pressure sealing ring contacting the inner surface of the cylinder 14 in the radial direction. The high pressure sealing ring 56 slides past the surface of the cylinder 14 when the piston 16 is inserted and withdrawn into the cylinder 14, and the high pressure sealing region 24 is fluid sealed to the cylinder 14. Seal with.

The fluid inlet device 42 according to FIG. 4 comprises six elongated inlet grooves 44, which extend in the axial direction with respect to the piston pump 10. Inlet grooves 44 are alternately arranged with elongated webs 46. The grooves are disposed throughout the circumference of the material forming the webs 46. By being disposed throughout the circumference, the inlet grooves 44 form a relatively large flow face and a very short flow path for the fluid. This enables good pressure buildup dynamics in the piston pump 10. While fluid is sucked into the piston pump 10, substantially no turbulence occurs.

The fluid inlet device 42 according to FIG. 4 comprises a shoulder 48 having two steps, an inner step 50 and an outer step 52, on the end side of the inlet groove 44 and the web 46. . That is, the inlet groove 44 and the webs 46 formed to be elongated are disposed in the inner step 50. The webs 46 are formed to be elastic in the radial direction. The elasticity allows the webs 46 to be secured within the hollow chamber 54 of the housing or the remaining part of the piston. The fluid inlet device 42 together with the housing of the piston 16 forms a piston-unit in a non-fit-fit engagement manner.

The shoulder 48 is here formed of a high pressure seal ring 56. The high pressure sealing ring 56 is used as a sealing member for sealing the high pressure region 24 in the cylinder 14 (see FIG. 3).

The fluid inlet device 42 is formed integrally as an injection molded part, and thus can be manufactured at low cost.

The fluid inlet device 42 according to FIG. 5 is formed similarly to the fluid inlet device 42 of FIG. 4. The shoulder 48 of the fluid inlet device 42 according to FIG. 5 has a support device 58 and a valve seat 40 by injection molding on a high pressure sealing ring 56 on opposite sides of the inlet grooves 44. Is formed integrally.

The support device 58 is used for receiving and guiding the valve closing body, in this case the valve ball 38. The valve ball 38 is pressed against the valve seat 40 by a helical spring 36 which is a corresponding pressurizing means. The support device 58 is also called a valve housing, valve cage or valve cover.

The support device 58 is formed of four elongated support webs 62, with locking hooks 64 arranged at the ends of the support webs, respectively. The support webs 62 are elastically supported in the radial direction and secure the valve ball 38 to have a guide play so that the valve ball 38 can be separated from the valve seat 40. The end of the helical spring 36 is arranged in the valve ball 38 and the other end is fixed to the locking hook 64. The helical spring 36, on the one hand, pressurizes the valve ball 38 and presses the valve ball against the valve seat 40. The helical spring 36 on the other hand exerts an axial pressure on the locking hook 64. This pressure particularly prevents the locking hooks 64 from being able to be separated from one another in the radial direction during operation of the piston pump 10.

10 piston pump
16 piston
42 Fluid Inlet Device
44 inflow groove

Claims (10)

In the fluid inlet device 42 formed as part of the piston 16 and for supplying fluid into the piston pump 10 with the piston 16,
The fluid inlet device 42 has at least one inlet groove 44 axially elongated with respect to the piston 16, the elongated inlet groove 44 being disposed throughout the circumference of the piston 16. Fluid inlet device, characterized in that. 2. A fluid inlet device according to claim 1, wherein webs (46) are disposed next to said at least one inlet groove (44) formed elongated, said webs being formed elastically in a radial direction. 3. Fluid inlet device according to claim 1 or 2, characterized in that the fluid inlet device (42) comprises two to ten, in particular five to seven elongated inlet grooves (44). 4. The fluid inlet device (42) according to claim 2 or 3, wherein the fluid inlet device (42) has a shoulder (48) defining inner and outer steps (50, 52), and the webs (46) of the piston (16). And an inner step (50) inserted into the hollow chamber (54). 5. A fluid inlet device according to any one of the preceding claims, characterized in that a support device (58) is formed in the fluid inlet device (42) for receiving a valve closure body (38). 6. The fluid inlet device of claim 5, wherein the support device comprises at least one locking hook for securing the corresponding pressing means. 7. A valve seat (40) is formed in the fluid inlet device (42), and the valve closing body (38) can be pressed against the valve seat (10). Fluid inlet device. 8. A fluid inlet device according to any one of the preceding claims, characterized in that a sealing member (56), in particular a high pressure seal ring (56), is formed in the fluid inlet device (42). Piston pump (10) with a fluid inlet device (42) according to any of the preceding claims. Vehicle brake system with a piston pump (10) according to claim 9.
KR1020100129798A 2009-12-18 2010-12-17 Fluid inlet device for feeding a fluid into a piston pump KR20110070818A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054933.1 2009-12-18
DE200910054933 DE102009054933A1 (en) 2009-12-18 2009-12-18 Fluid inlet device for supplying fluid into a piston pump

Publications (1)

Publication Number Publication Date
KR20110070818A true KR20110070818A (en) 2011-06-24

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Application Number Title Priority Date Filing Date
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DE (1) DE102009054933A1 (en)
FR (1) FR2954418A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101429538B1 (en) * 2013-02-25 2014-08-12 주식회사 만도 Pump unit for brake system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017216900A1 (en) 2017-09-25 2019-03-28 Robert Bosch Gmbh Pressure medium control valve, in particular for controlling a flow direction in a pressure medium circuit and piston pump, in particular for the promotion of a pressure medium in an electronically slip-regulated vehicle brake system
CN114483566B (en) * 2022-02-09 2023-03-24 烟台杰瑞石油服务集团股份有限公司 Flow divider, hydraulic end and plunger pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006697A1 (en) * 1997-07-30 1999-02-11 Robert Bosch Gmbh Tubular piston produced by cold forming and closure plug for pump with radial pistons
DE10019403A1 (en) 2000-04-19 2001-10-25 Bosch Gmbh Robert Check valve for piston pump has holding component for valve shut-off element and is movably connected to it and formed in one piece with it
DE102005017131B4 (en) 2005-04-14 2020-03-05 Robert Bosch Gmbh Piston pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101429538B1 (en) * 2013-02-25 2014-08-12 주식회사 만도 Pump unit for brake system

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FR2954418A1 (en) 2011-06-24

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