US20070092389A1 - Piston pump - Google Patents

Piston pump Download PDF

Info

Publication number
US20070092389A1
US20070092389A1 US10/545,258 US54525803A US2007092389A1 US 20070092389 A1 US20070092389 A1 US 20070092389A1 US 54525803 A US54525803 A US 54525803A US 2007092389 A1 US2007092389 A1 US 2007092389A1
Authority
US
United States
Prior art keywords
sleeve
piston pump
piston
radial flange
resetting spring
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.)
Abandoned
Application number
US10/545,258
Other languages
English (en)
Inventor
Dieter Dinkel
Albrecht Otto
Hans-Georg Zentgraf
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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
Priority claimed from DE10346237A external-priority patent/DE10346237A1/de
Application filed by Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Assigned to CONTINENTAL TEVES AG & CO, OHG reassignment CONTINENTAL TEVES AG & CO, OHG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DINKEL, DIETER, OTTO, ALBRECHT, ZENTGRAF, HANS-GEORG
Publication of US20070092389A1 publication Critical patent/US20070092389A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • 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
    • 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
    • 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
    • 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
    • F04B53/166—Cylinder liners
    • F04B53/168—Mounting of cylinder liners in cylinders
    • 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
    • F04B53/20—Filtering

Definitions

  • the present invention relates to a piston pump for supplying pressure fluid into at least one vehicle brake, into a master cylinder, into a pressure fluid reservoir or into a pressure fluid accumulator of a controlled vehicle brake system.
  • a piston pump of this type is e.g. disclosed in DE 100 22 811 A1 and comprises, among others, a sleeve retained in a stepped bore. This sleeve is pressed into the stepped bore by a closing member that abuts axially on a bottom of the sleeve. It is disadvantageous in this type of construction that the pressing and attaching forces introduced into the sleeve may cause a deformation of a seat for a non-return valve. This jeopardizes the operational safety of the vehicle brake system.
  • a generic piston pump is described in DE 197 53 083 A1.
  • a closing member bears in an axial direction directly against the sleeve, pressing it axially against a bore step.
  • the forces introduced through the sleeve and a conical abutment surface of the sleeve in the area of the non-return valve can cause a deformation of the sleeve in the area of the valve seat.
  • an object of the invention is to disclose a means permitting an integration of a piston-pump subassembly into an accommodating member, while in particular valve seats of non-return valves can be retained so as to be free from pressing or attaching forces being due to the assembly and from resultant deformations.
  • this object is achieved in that the sleeve includes a radial flange, and in that the radial flange is compressed between the closing member and the accommodating member for securing the sleeve in position in an axial direction.
  • This measure is used to retain the pump subassembly in the accommodating member, while the necessary attaching forces are introduced into the sleeve at a point spaced from the seat of non-return valves, thereby preventing that the sealing effect of the non-return valves is impaired.
  • the stepped bore has a bore step with a bore diameter that is designed larger than the radial flange so that an exclusively axial abutment of the radial flange prevails. This prevents an application of force at the periphery of the sleeve which causes out-of-true operation or deformations of the sleeve.
  • the sleeve includes a bowl-shaped portion which is used as a support for the resetting spring and has a cylindrical wall and a bottom on which one end of the resetting spring is abutting. This obviates the need for a separate assembly of a separate spring retainer in the accommodating member.
  • a portion of the sleeve can be substantially V-shaped or U-shaped in cross-section so that an indentation provided between the wall and a collar is used to accommodate the resetting spring, and an outside indentation formed by the collar accommodates a non-return valve in such a fashion that resetting spring, sleeve and non-return valve intersect at least in the area of the portion in a radial direction.
  • An arrangement of the components involved that achieves especially short dimensions is thereby given, and a seat for a non-return valve can be provided in the bottom area of the sleeve.
  • the seat is preferably provided at the collar.
  • the mounting space requirement is furthermore reduced when the closing member has a bowl-shaped design and includes a wall and a bottom, and the bowl-shaped portion of the sleeve is accommodated in an inner space of the closing member, and an end surface of the wall maintains the radial flange in abutment on the bore step.
  • Essential parts of the piston pump, in particular the sleeve and the portion, due to the protuberances are formed as sheet-metal shaped parts being fastened in the area of the radial flange to the closing member by means of calked or pressed engagement.
  • the pump of the invention shows a good aspiration behavior, even at low temperatures of the pressure fluid, because the construction allows correspondingly expanded aspiration cross-sections especially as regards the channel routing and the piston configuration.
  • FIG. 1 shows a cross-sectional, enlarged view of a first and second embodiment of a piston pump separated by an axle center;
  • FIG. 2 shows an enlarged view of a variant according to FIG. 1 ;
  • FIG. 3 shows a third embodiment of a piston pump
  • FIGS. 4 a - c show details of different sleeves, which are principally based on the embodiment shown in FIG. 3 .
  • FIG. 1 shows an assembly 1 with a schematically illustrated drive 2 , in particular an electric motor, which is flanged to an accommodating member 3 for electromagnetically operable valves, channels, accumulator or damper chambers and to a piston pump 10 .
  • An electronic control unit 4 (shown only schematically) is provided on an opposite side of the accommodating member 3 .
  • the illustrated assembly 1 is in particular used for slip control or driving stability control in motor vehicles, yet similar or different cases of application are also feasible.
  • a preferably central stepped bore 5 of the accommodating member 3 accommodates a sealed roller bearing 6 of the drive shaft 7 whose free end is designed as an eccentric 8 projecting into a crank chamber 9 of the stepped bore 5 .
  • the eccentric 8 is ground out directly at the drive shaft 7 or motor shaft, or is designed as a separate component and attached to the drive shaft.
  • the crank chamber 9 can be flooded with leakage fluid, especially with brake fluid, and a reservoir connected to the crank chamber 9 is used for the fluid take-up within the drive 2 , the accommodating member 3 or the electronic control unit 4 .
  • the eccentric 8 is equipped with a needle bearing 11 which is closed on one side by a bowl-shaped outside ring 12 , the bowl bottom 13 thereof, with a wart-like projection, being movable into abutment on an end surface of the drive shaft in a punctual manner and with low friction.
  • a bottom 14 of the crank chamber 9 has a ball 15 so that the bowl bottom 13 abuts with an outside surface remote from the motor shaft on the ball 15 in a low-friction fashion, and the outside ring 12 that can be rotated relative to the accommodating member 3 does not have any direct contact to the material of the accommodating member 3 . This counteracts frictional stress of the accommodating member 3 , without having to apply wear-resistant material coatings such as eloxal coatings onto walls of an accommodating member 3 made of aluminum.
  • two pistons 16 , 17 of the piston pump 10 which are in each case of bipartite design are arranged and guided within a stepped bore 64 , 65 , movable in a sleeve 18 , 19 .
  • the pistons extend with a first hydraulic diameter a supply chamber 30 , 31 and reach with an end 20 , 21 into the crank chamber 9 where they contact a periphery of the outside ring 12 .
  • Another end 22 , 23 of the pistons 16 , 17 has another, second hydraulically active diameter and projects into a displacement chamber 24 , 25 .
  • the stepped end of the piston 16 which is also split like a fork by at least one groove has a plate-shaped valve seat 38 whose cylindrical wall portion 39 is slipped at least partly onto the end 22 . It also carries the guiding and sealing ring 26 on an outside surface.
  • the valve seat 38 includes a stop 40 to secure the sealing ring 26 axially in position.
  • a component 42 which acts additionally as a spring plate for a piston resetting spring 41 and a valve spring 45 or, like in FIG. 2 , a separate spring plate abuts in the shoulder area of axially bent legs 43 on a front side of the valve seat 38 .
  • Radial legs 44 can abut flatly on the sealing ring 26 in an axial direction so that the sealing ring is fixed in position on the piston 16 and oscillates with it in relation to the accommodating member 3 .
  • the legs 43 of the component 42 which point in the axial direction, can engage into a slot between the cylindrical wall portion 39 of the valve seat 38 and the sealing ring 26 , whereby the radial counter pressure of the sealing ring 26 on the sleeve 18 can be increased.
  • a cylindrical component portion 46 prevents the valve spring 45 from bulging.
  • the piston resetting spring 41 extends through the entire displacement chamber 24 and bears with one end on an abutment 47 that is remote from the piston and also serves as a bottom for the sleeve.
  • the sleeve 18 is shaped like a bowl, and the support 47 is configured as a component bulged like a plate and having a radial flange 48 , a wall 49 and a bottom area 50 .
  • the radial flange 48 abuts flatly on a radial flange 51 of the sleeve 18 .
  • the bottom area 50 includes a collar 53 which points oppositely, that means in the direction of piston 16 , and has a seat 54 for a valve member 55 of the non-return valve (pressure valve) 36 . Consequently, a bulge provided between collar 53 and wall 49 on the side of the displacement chamber is used to accommodate the resetting spring 41 , and a bulge formed by the collar 53 itself is used to accommodate essential parts of the non-return valve 36 such as valve member 55 and valve spring 56 in particular.
  • the mentioned components are hence arranged in each other in such a fashion that they intersect at least in part in a radial direction, what results in mounting space economy. As becomes further apparent from FIGS.
  • the collar 53 has a largely conical form. Its (outside) diameter initially corresponds substantially to the (inside) diameter of the resetting spring 41 , subsequently tapering in the direction of seat 54 . This arrangement improves the centering of the resetting spring, in particular during the assembly.
  • valve spring 56 of the non-return valve 36 Various measures are possible to support the valve spring 56 of the non-return valve 36 .
  • the valve spring 56 ′ can be supported axially directly on the closing member 52 ′, and a substantially plate-shaped retaining component 57 ′, the shape of which comes close to the shape of the support, is provided with a guiding portion 58 ′ for the valve spring 56 ′.
  • a radial flange 59 ′ of the retaining component 57 ′ comprises edge portions 60 being bent in such a fashion that they embrace the radial flange 51 , 48 of sleeve 19 and support 47 ′ in order to fix an independently operable modular unit composed of sleeve 19 , resetting spring 41 , non-return valves 33 , 37 and the retaining component 57 ′.
  • the retaining component 57 in addition to the guiding portion 58 , includes a stop 61 for the valve spring 56 .
  • the retaining component 57 may be omitted because the valve spring 56 ′′ abuts axially on the closing member 52 ′′ and the latter includes either a dome-shaped elevation 62 , 63 or an elevation 64 , 65 shaped like a socket, as is shown in dotted lines in FIG. 2 .
  • the independently operable unit is manufactured in that the closing member 52 ′′ is calked with the radial flange 48 , 51 , as can be seen in FIG. 3 .
  • the sleeve is retained by a closing member 52 , 52 ′, 52 ′′ in the stepped bore of the accommodating member 3 .
  • the closing member 52 , 52 ′, 52 ′′ is calked or clinched with the accommodating member 3 , as is shown in the Figures.
  • a clinched engagement implies in this context that the closing member 52 , 52 ′, 52 ′′ is made of a material harder than the accommodating member 3 , and that the closing member 52 , 52 ′, 52 ′′ in the area of a bore wall is further provided with a contour producing a form lock by means of cold working between the components involved in the event of a relative displacement between closing member 52 , 52 ′, 52 ′′ and accommodating member 3 .
  • the closing member 52 In order to integrate the closing member 52 into the independently operable pump assembly even in the type of construction according to FIG. 1 , it is possible that it has a substantially concave design for accommodating parts of the pump cartridge (comprising sleeve 18 , 19 , non-return valves 32 , 33 , 36 , 37 ), resetting spring 41 , piston 16 , 17 ) and includes a wall 66 with an end surface 67 and a bottom 68 , while the inside contour has a profiling or fit receiving the retaining component 57 in a clamping manner.
  • This achieves a space-saving, yet easy-to-assemble arrangement.
  • provisions must be made to ensure that there is a sufficient flow cross-section for the pressure fluid.
  • FIGS. 3 a to 3 c show design variants of a sleeve 18 , which is preferably manufactured by deformation and which includes a radial flange 51 .
  • the basic idea of the invention renders it possible to shape essential parts of the pump cartridge, in particular its sleeve 18 , 19 , including bottom (support 47 ) as sheet-metal shaped parts or punched parts, without having to fear functional impairment in the area of the non-return valves 36 , 37 due to deformations caused by the assembly.

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)
  • Reciprocating Pumps (AREA)
US10/545,258 2003-02-12 2003-12-12 Piston pump Abandoned US20070092389A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10305949.0 2003-02-12
DE10305949 2003-02-12
DE10346237.6 2003-10-06
DE10346237A DE10346237A1 (de) 2003-02-12 2003-10-06 Kolbenpumpe
PCT/EP2003/014100 WO2004072478A1 (de) 2003-02-12 2003-12-12 Kolbenpumpe

Publications (1)

Publication Number Publication Date
US20070092389A1 true US20070092389A1 (en) 2007-04-26

Family

ID=32870336

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/545,258 Abandoned US20070092389A1 (en) 2003-02-12 2003-12-12 Piston pump

Country Status (5)

Country Link
US (1) US20070092389A1 (de)
EP (1) EP1599673B1 (de)
JP (1) JP4246738B2 (de)
KR (1) KR100988742B1 (de)
WO (1) WO2004072478A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110571A1 (en) * 2007-10-29 2009-04-30 Mando Corporation Hydraulic pump for brake system
US20090185924A1 (en) * 2006-06-22 2009-07-23 Andre Bollwerk Piston pump
US20100083821A1 (en) * 2006-11-16 2010-04-08 Heiko Druckenmueller Piston pump for a vehicle brake system
US20100215530A1 (en) * 2006-10-17 2010-08-26 Oliver Schmautz Piston pump for a vehicle brake system, having a piston rod
US20100247358A1 (en) * 2007-11-06 2010-09-30 Harald Hermann Plastic element, piston pump, and assembly method
CN102182664A (zh) * 2011-05-24 2011-09-14 钱如树 一种四腔恒速恒压计量泵
US20220185257A1 (en) * 2020-12-11 2022-06-16 Hyundai Mobis Co., Ltd. Piston pump for brake system
US20230097493A1 (en) * 2021-09-29 2023-03-30 Chipmast Autotronix Co., Ltd. Oil scavenge pump, hydraulic device having the same and method for assembling the same
US20230104415A1 (en) * 2021-09-29 2023-04-06 Chipmast Autotronix Co., Ltd. Oil-scavenge pump, hydraulic device having the same and method for assembling the same
US20230296088A1 (en) * 2020-08-13 2023-09-21 Up-Steel, S.R.O. Radial rotary piston machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010674A1 (de) * 2005-09-14 2007-03-15 Continental Teves Ag & Co. Ohg Kolbenpumpe
JP4994208B2 (ja) * 2007-12-13 2012-08-08 日立オートモティブシステムズ株式会社 ピストンポンプ
KR100869777B1 (ko) * 2008-08-14 2008-11-21 황창성 터빈 재킹오일 펌프
JP6235332B2 (ja) * 2013-12-25 2017-11-22 三菱重工業株式会社 ラジアルピストン式油圧機械および風力発電装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042350A (en) * 1995-07-27 2000-03-28 Itt Manufacturing Enterprises Inc. Piston pump
US6146115A (en) * 1997-10-30 2000-11-14 Robert Bosch Gmbh Piston pump
US6302663B1 (en) * 1998-05-09 2001-10-16 Robert Bosch Gmbh Piston pump
US6497562B1 (en) * 1997-11-14 2002-12-24 Continental Teves Ag & Co., Ohg Piston pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19747936A1 (de) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Kolbenpumpe
DE19732771A1 (de) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Kolbenpumpe
DE19854719B4 (de) * 1998-11-26 2008-10-16 Continental Teves Ag & Co. Ohg Kolbenpumpe
DE10022811A1 (de) 2000-05-10 2001-11-15 Bosch Gmbh Robert Rückschlagventil für eine Kolbenpumpe
DE10112618A1 (de) * 2001-03-14 2002-09-19 Bosch Gmbh Robert Kolbenpumpe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042350A (en) * 1995-07-27 2000-03-28 Itt Manufacturing Enterprises Inc. Piston pump
US6146115A (en) * 1997-10-30 2000-11-14 Robert Bosch Gmbh Piston pump
US6497562B1 (en) * 1997-11-14 2002-12-24 Continental Teves Ag & Co., Ohg Piston pump
US6302663B1 (en) * 1998-05-09 2001-10-16 Robert Bosch Gmbh Piston pump

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090185924A1 (en) * 2006-06-22 2009-07-23 Andre Bollwerk Piston pump
US8272858B2 (en) * 2006-06-22 2012-09-25 Robert Bosch Gmbh Piston pump
US8388325B2 (en) 2006-10-17 2013-03-05 Robert Bosch Gmbh Piston pump for a vehicle brake system, having a piston rod
US20100215530A1 (en) * 2006-10-17 2010-08-26 Oliver Schmautz Piston pump for a vehicle brake system, having a piston rod
US20100083821A1 (en) * 2006-11-16 2010-04-08 Heiko Druckenmueller Piston pump for a vehicle brake system
US8801408B2 (en) 2006-11-16 2014-08-12 Robert Bosch Gmbh Piston pump for a vehicle brake system
US20090110571A1 (en) * 2007-10-29 2009-04-30 Mando Corporation Hydraulic pump for brake system
US8523541B2 (en) * 2007-11-06 2013-09-03 Robert Bosch Gmbh Plastic element, piston pump, and assembly method
US20100247358A1 (en) * 2007-11-06 2010-09-30 Harald Hermann Plastic element, piston pump, and assembly method
CN102182664A (zh) * 2011-05-24 2011-09-14 钱如树 一种四腔恒速恒压计量泵
US20230296088A1 (en) * 2020-08-13 2023-09-21 Up-Steel, S.R.O. Radial rotary piston machine
US20220185257A1 (en) * 2020-12-11 2022-06-16 Hyundai Mobis Co., Ltd. Piston pump for brake system
US20230097493A1 (en) * 2021-09-29 2023-03-30 Chipmast Autotronix Co., Ltd. Oil scavenge pump, hydraulic device having the same and method for assembling the same
US20230104415A1 (en) * 2021-09-29 2023-04-06 Chipmast Autotronix Co., Ltd. Oil-scavenge pump, hydraulic device having the same and method for assembling the same
US11668291B2 (en) * 2021-09-29 2023-06-06 Chipmast Autotronix Co., Ltd. Oil-scavenge pump and method for assembling the same
US11781541B2 (en) * 2021-09-29 2023-10-10 Chipmast Autotronix Co., Ltd. Oil-scavenge pump and method for assembling the same

Also Published As

Publication number Publication date
EP1599673A1 (de) 2005-11-30
WO2004072478A1 (de) 2004-08-26
KR100988742B1 (ko) 2010-10-20
JP2006514215A (ja) 2006-04-27
JP4246738B2 (ja) 2009-04-02
KR20050099624A (ko) 2005-10-14
EP1599673B1 (de) 2011-04-20

Similar Documents

Publication Publication Date Title
US7390174B2 (en) Piston pump
US5823639A (en) Piston pump for delivering hydraulic fluid in a block-protected vehicle braking system
US6244295B1 (en) Non-return valve, especially for a piston pump
US20070092389A1 (en) Piston pump
US6224352B1 (en) Piston pump in a brake system of a vehicle
US6866489B2 (en) Piston pump
US6334762B1 (en) Piston pump including an easily produced flow conduit
US8087911B2 (en) Pump of electronically controlled brake system
JP4531877B2 (ja) ピストンポンプ
US7386979B2 (en) Plunger type master cylinder
US7198249B2 (en) Electromagnetic shuttle valve
US5320498A (en) Structure for plunger pump
US20020155008A1 (en) Piston pump
JP2003503630A (ja) ピストンポンプ
JP4067576B2 (ja) ピストンポンプ
JP2000213468A (ja) ピストンポンプ
JP5000411B2 (ja) マスタシリンダおよびその製造方法
CN100540890C (zh) 活塞泵
JP2003521419A (ja) ブレーキ装置
US7493849B2 (en) Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles
US20140030128A1 (en) Piston pump having a cylinder barrel
US11203330B2 (en) Hydraulic unit
JP4723488B2 (ja) ピストンタイプアキュムレーター
US9604621B2 (en) Pressure regulating valve
JP5472075B2 (ja) リザーバ

Legal Events

Date Code Title Description
AS Assignment

Owner name: CONTINENTAL TEVES AG & CO, OHG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DINKEL, DIETER;OTTO, ALBRECHT;ZENTGRAF, HANS-GEORG;REEL/FRAME:017610/0484

Effective date: 20050607

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION