EP1347172A3 - Piston pump - Google Patents

Piston pump Download PDF

Info

Publication number
EP1347172A3
EP1347172A3 EP03004570A EP03004570A EP1347172A3 EP 1347172 A3 EP1347172 A3 EP 1347172A3 EP 03004570 A EP03004570 A EP 03004570A EP 03004570 A EP03004570 A EP 03004570A EP 1347172 A3 EP1347172 A3 EP 1347172A3
Authority
EP
European Patent Office
Prior art keywords
pump
piston
eccentric cam
camshaft
lifting movement
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Withdrawn
Application number
EP03004570A
Other languages
German (de)
French (fr)
Other versions
EP1347172A2 (en
Inventor
Gerd Blessing
Sven Fleisch
Karl-Heinz Hoffmann
Manfred Müller
Claus Stenger
Bernd Wiemann
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1347172A2 publication Critical patent/EP1347172A2/en
Publication of EP1347172A3 publication Critical patent/EP1347172A3/en
Withdrawn legal-status Critical Current

Links

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
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18336—Wabbler type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Eine Kolbenpumpe, insbesondere eine Reihen- oder Radialkolbenpumpe zur Kraftstoffhochdruckerzeugung bei Common-Rail-Einspritzsystemen, weist eine in einem Pumpengehäuse (1) drehbar gelagerte Nockenwelle (2) auf, die mindestens einen Exzenternocken (3) aufweist. Dem Exzenternocken (3) ist mindestens ein Pumpenkolben (4, 14) zugeordnet, der vom Exzenternocken (3) betätigt ist und der in etwa radialer Richtung zur Nockenwelle (2) eine Hubbewegung (5) ausführen kann. Die Hubbewegung (5) umfaßt einen zur Nockenwelle (2) gerichteten Abwärtshub (5') und einen entgegengesetzt gerichteten Aufwärtshub (5''). Zur Reduzierung des Verschleißes der Kolbenpumpe ist vorgesehen, daß zwischen jedem Pumpenkolben (4, 14) und dem Exzenternocken (3) ein Pleuelelement (6, 16, 26, 36, 46) angeordnet ist, welches durch Abwälzen die Hubbewegung (5) und die Kraft auf den Pumpenkolben (4, 14) überträgt.

Figure 00000001
A piston pump, in particular a series or radial piston pump for high-pressure fuel generation in common-rail injection systems, has a camshaft (2) rotatably mounted in a pump housing (1), which has at least one eccentric cam (3). The eccentric cam (3) is associated with at least one pump piston (4, 14), which is actuated by the eccentric cam (3) and in approximately radial direction to the camshaft (2) can perform a lifting movement (5). The lifting movement (5) comprises a camshaft (2) directed downward stroke (5 ') and an oppositely directed upward stroke (5''). To reduce the wear of the piston pump is provided that between each pump piston (4, 14) and the eccentric cam (3) a connecting rod (6, 16, 26, 36, 46) is arranged, which by rolling the lifting movement (5) and the Force on the pump piston (4, 14) transmits.
Figure 00000001
EP03004570A 2002-03-21 2003-02-28 Piston pump Withdrawn EP1347172A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10212492 2002-03-21
DE10212492A DE10212492B4 (en) 2002-03-21 2002-03-21 piston pump

Publications (2)

Publication Number Publication Date
EP1347172A2 EP1347172A2 (en) 2003-09-24
EP1347172A3 true EP1347172A3 (en) 2004-12-08

Family

ID=27771460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004570A Withdrawn EP1347172A3 (en) 2002-03-21 2003-02-28 Piston pump

Country Status (3)

Country Link
US (1) US6991438B2 (en)
EP (1) EP1347172A3 (en)
DE (1) DE10212492B4 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20313014U1 (en) * 2003-08-21 2004-12-23 Robert Bosch Gmbh High pressure pump for a fuel injector of an internal combustion engine
US7134846B2 (en) * 2004-05-28 2006-11-14 Stanadyne Corporation Radial piston pump with eccentrically driven rolling actuation ring
US7503291B2 (en) * 2005-03-09 2009-03-17 Kiss Engineering, Inc. Reciprocating device with dual chambered cylinders
CA2511254C (en) * 2005-08-04 2007-04-24 Westport Research Inc. High-pressure gas compressor and method of operating a high-pressure gas compressor
DE102006026220B4 (en) * 2006-06-06 2008-05-08 Siemens Ag Fluid pump with crank mechanism
DE102007019261A1 (en) * 2007-04-17 2008-10-23 Golle Motor Ag Radial piston pump, esp. For Common Rail (CR) injection systems
US20100119393A1 (en) * 2008-11-12 2010-05-13 Delphi Technologies, Inc. Hydraulic pump assembly
US20130084198A1 (en) * 2011-10-04 2013-04-04 Woodward, Inc. Pump with centralized spring forces
GB201202221D0 (en) 2012-02-09 2012-03-28 Delphi Tech Holding Sarl Improvements relating to fuel pumps
EP2628942B1 (en) * 2012-02-14 2014-10-01 Continental Automotive GmbH Pump and common rail fuel injection system
JP6293994B2 (en) * 2012-10-31 2018-03-14 日立オートモティブシステムズ株式会社 High pressure fuel supply pump
DE102013200548A1 (en) * 2013-01-16 2014-07-17 Continental Teves Ag & Co. Ohg Piston pump used for hydraulic brake system, has bushing for receiving pump piston, which is provided with inner section on which piston seal in fixed
EP2910769A1 (en) * 2014-02-25 2015-08-26 Delphi International Operations Luxembourg S.à r.l. Fuel pumping mechanism
DE102014220746B3 (en) 2014-10-14 2016-02-11 Continental Automotive Gmbh Fuel pump
DE102014220839B4 (en) 2014-10-15 2016-07-21 Continental Automotive Gmbh High-pressure pump for a fuel injection system of an internal combustion engine
DE102014220937B4 (en) * 2014-10-15 2016-06-30 Continental Automotive Gmbh Drive device for driving a high-pressure fuel pump and high-pressure fuel pump
DE102015200310A1 (en) 2015-01-13 2016-07-14 Robert Bosch Gmbh Piston unit and hydrostatic radial piston machine
DE102015203276A1 (en) * 2015-02-24 2016-08-25 Continental Teves Ag & Co. Ohg piston pump
GB201517504D0 (en) * 2015-10-05 2015-11-18 Delphi Internat Operations Luxembourg S À R L Pumping assembly
CN112957008A (en) * 2021-01-29 2021-06-15 海南省妇女儿童医学中心 Remote palpation equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB574991A (en) * 1944-02-15 1946-01-29 Precision Developments Co Ltd Improvements in radial pumps
DE4200576A1 (en) * 1991-01-16 1992-07-23 Karl Eickmann High pressure device for fluid flow machines - has piston 'shoe' running within chamber to support high pressure piston and withstand buckling
DE19829548A1 (en) * 1998-07-02 2000-01-13 Bosch Gmbh Robert Radial piston pump
DE19858862A1 (en) * 1998-12-19 2000-03-02 Bosch Gmbh Robert Radial piston pump for fuel high pressure production in fuel injection system for internal combustion engine, particularly common rail injection system, has drive shaft located in pump housing, which has eccentric section

Family Cites Families (26)

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DE2827609A1 (en) * 1978-06-23 1980-01-10 Fichtel & Sachs Ag RADIAL PISTON PUMP
US4366747A (en) * 1980-08-11 1983-01-04 J. I. Case Company Slipper arrangement for hydraulic pump
US4690620A (en) * 1980-08-19 1987-09-01 Karl Eickmann Variable radial piston pump
DE3046753C2 (en) * 1980-12-12 1986-02-27 Mannesmann Rexroth GmbH, 8770 Lohr Hydrostatic radial piston pump
US4498372A (en) * 1983-12-23 1985-02-12 Lear Siegler, Inc. Pump with ring retained floating wrist pins and connecting rods
US4681893A (en) * 1986-05-30 1987-07-21 Warner-Lambert Company Trans-6-[2-(3- or 4-carboxamido-substituted pyrrol-1-yl)alkyl]-4-hydroxypyran-2-one inhibitors of cholesterol synthesis
US5216174A (en) * 1988-02-22 1993-06-01 Warner-Lambert Co. Process for trans-6-[12-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
US5149837A (en) * 1988-02-22 1992-09-22 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
US5097045A (en) * 1989-02-01 1992-03-17 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
US5124482A (en) * 1988-02-22 1992-06-23 Warner-Lambert Company Process for trans-6-(2-substituted-pyrrol-1-yl)alkyl)pyran-2-one inhibitors of cholesterol synthesis
US5245047A (en) * 1988-02-22 1993-09-14 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
US5003080A (en) * 1988-02-22 1991-03-26 Warner-Lambert Company Process for trans-6-(2-(substituted-pyrrol-1-yl)alkyl)pryan-2-one inhibitors of cholesterol synthesis
FI94339C (en) * 1989-07-21 1995-08-25 Warner Lambert Co Process for the preparation of pharmaceutically acceptable [R- (R *, R *)] - 2- (4-fluorophenyl) -, - dihydroxy-5- (1-methylethyl) -3-phenyl-4 - [(phenylamino) carbonyl] -1H- for the preparation of pyrrole-1-heptanoic acid and its pharmaceutically acceptable salts
DE4010090A1 (en) * 1990-03-29 1991-10-02 Bosch Gmbh Robert PISTON PUMP
US5103024A (en) * 1990-10-17 1992-04-07 Warner-Lambert Company Process for the synthesis of (4r-cis)-1,1-dimethylethyl 6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate
US5155251A (en) * 1991-10-11 1992-10-13 Warner-Lambert Company Process for the synthesis of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate
US5298627A (en) * 1993-03-03 1994-03-29 Warner-Lambert Company Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis
DE19523283B4 (en) * 1995-06-27 2006-01-19 Robert Bosch Gmbh Pump, in particular high-pressure pump for a fuel injection device of an internal combustion engine
DE19635164A1 (en) * 1996-08-30 1998-03-05 Bosch Gmbh Robert Piston pump
DE19804275A1 (en) * 1998-02-04 1999-08-12 Bosch Gmbh Robert Radial piston pump for high-pressure fuel supply
DE69919658T2 (en) * 1998-05-26 2005-09-15 Caterpillar Inc., Peoria HYDRAULIC SYSTEM WITH A PUMP WITH A VARIABLE DELIVERY VOLUME
DE19846367C2 (en) * 1998-10-08 2003-06-12 Bosch Gmbh Robert Radial piston pump
JP4016237B2 (en) * 1999-04-16 2007-12-05 株式会社デンソー Fuel injection pump
US6622706B2 (en) * 2000-05-30 2003-09-23 Robert H. Breeden Pump, pump components and method
DE10058050C1 (en) * 2000-11-23 2002-03-21 Ats Spartec Inc Radial piston pump for fluid feed has piston shoes of radial pistons attached to support ring via retaining rails and blocked against rotation by spring-assisted pressure rings
DE10106069A1 (en) * 2001-02-09 2002-08-14 Zf Lenksysteme Gmbh Radial piston engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB574991A (en) * 1944-02-15 1946-01-29 Precision Developments Co Ltd Improvements in radial pumps
DE4200576A1 (en) * 1991-01-16 1992-07-23 Karl Eickmann High pressure device for fluid flow machines - has piston 'shoe' running within chamber to support high pressure piston and withstand buckling
DE19829548A1 (en) * 1998-07-02 2000-01-13 Bosch Gmbh Robert Radial piston pump
DE19858862A1 (en) * 1998-12-19 2000-03-02 Bosch Gmbh Robert Radial piston pump for fuel high pressure production in fuel injection system for internal combustion engine, particularly common rail injection system, has drive shaft located in pump housing, which has eccentric section

Also Published As

Publication number Publication date
DE10212492A1 (en) 2003-10-02
US20030180159A1 (en) 2003-09-25
US6991438B2 (en) 2006-01-31
DE10212492B4 (en) 2012-02-02
EP1347172A2 (en) 2003-09-24

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