EP1074734A2 - Axial piston pump - Google Patents

Axial piston pump Download PDF

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Publication number
EP1074734A2
EP1074734A2 EP00112276A EP00112276A EP1074734A2 EP 1074734 A2 EP1074734 A2 EP 1074734A2 EP 00112276 A EP00112276 A EP 00112276A EP 00112276 A EP00112276 A EP 00112276A EP 1074734 A2 EP1074734 A2 EP 1074734A2
Authority
EP
European Patent Office
Prior art keywords
housing
piston pump
cylinder piece
suction
valve
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.)
Granted
Application number
EP00112276A
Other languages
German (de)
French (fr)
Other versions
EP1074734A3 (en
EP1074734B1 (en
Inventor
Bernhard Radermacher
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.)
TI Automotive Neuss GmbH
Original Assignee
Pierburg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP1074734A2 publication Critical patent/EP1074734A2/en
Publication of EP1074734A3 publication Critical patent/EP1074734A3/en
Application granted granted Critical
Publication of EP1074734B1 publication Critical patent/EP1074734B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • F04B1/148—Bearings 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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/145—Housings
    • 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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/18—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors

Definitions

  • the invention relates to an axial piston pump with a swash plate drive according to the preamble of claim 1.
  • Such an axial piston pump is known as a high pressure pump from DE 85 14 497 U1, whose interior is filled with an oil.
  • an axial piston pump is known, which is used as a fuel pump to be used.
  • This pump also has an insulated interior that is filled with lubricating oil.
  • the drawing shows a longitudinal section of an axial piston pump 1 with a swash plate drive 2 and wet-running electric motor 3, the electric motor 3 has a drive shaft 4 Drive disc 5 on.
  • check valves 17, 18 designed as leaf spring valves 23, 24 and between valve disk 13 and housing 12 or valve disk 13 and cylinder piece 11 are clamped.
  • the pistons 10 are loaded by a common spring rocker 25, which is supported on a centering pin 26 of the cylinder piece 11, the swash plate 8 is placed with a centering recess 27 on the centering pin 26.
  • the spring rocker 25 is achieved that a piston a suction stroke and the other one Pressure stroke executes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The pump has a drive plate (5) supported on an electric motor bearing ring (7) via roller bearings (6). A wobble plate (8) is supported on the drive plate via roller bearings (9). Pairs of spring-loaded pistons (10) are supported on the wobble plate. A cylinder part (11) is set in the pump housing (12) to clamp a valve plate between the housing and cylinder part. Connecting channels (14) in the valve plate for vacuum and pressure channels (15,16) with non-return valves (17,18).

Description

Die Erfindung betrifft eine Axialkolbenpumpe mit Taumelscheibenantrieb nach dem Oberbegriff des Patentanspruchs 1.The invention relates to an axial piston pump with a swash plate drive according to the preamble of claim 1.

Eine derartige Axialkolbenpumpe ist als Hochdruckpumpe aus dem DE 85 14 497 U1 bekannt, deren Innenraum mit einem Öl gefüllt ist.Such an axial piston pump is known as a high pressure pump from DE 85 14 497 U1, whose interior is filled with an oil.

Aus der DE 196 43 134 A1 ist eine Axialkolbenpumpe bekannt, die als Kraftstoffpumpe eingesetzt werden soll. Auch bei dieser Pumpe ist ein isolierter Innenbereich vorgesehen, der mit Schmieröl gefüllt ist.From DE 196 43 134 A1 an axial piston pump is known, which is used as a fuel pump to be used. This pump also has an insulated interior that is filled with lubricating oil.

Es ist bekannt, elektrische Kraftstoffpumpen mit einem nasslaufenden Elektromotor auszustatten, d. h. diese als Inlinepumpe zu betreiben, so dass die wärmeproduzierenden Elektromotorteile durch das geförderte Medium gekühlt werden.It is known to use electric fuel pumps with a wet-running electric motor equip, d. H. to operate this as an inline pump so that the heat-producing ones Electric motor parts are cooled by the medium being pumped.

Im Zuge der immer weiter ansteigenden Anforderungen an Fahrzeugbrennkraftmaschinen besteht Bedarf nach einer Kraftstoffpumpe für Brennkraftmaschinen, die für höhere Förderdrücke und für eine kostengünstige Massenfertigung geeignet ist.In the course of the ever increasing demands on vehicle internal combustion engines Need for a fuel pump for internal combustion engines, for higher delivery pressures and is suitable for inexpensive mass production.

Es ist daher Aufgabe der Erfindung, eine solche aufzufinden.It is therefore an object of the invention to find one.

Diese Aufgabe ist bei einer gattungsgemässen Axialkolbenpumpe durch die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale gelöst, wobei vorteilhafte Weiterbildungen in den Unteransprüchen angegeben sind.This task is in a generic axial piston pump by the in the mark of claim 1 specified features, wherein advantageous developments in the subclaims are specified.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und nachfolgend beschrieben. An embodiment of the invention is shown in the drawing and described below.

Die Zeichnung zeigt einen Längsschnitt einer Axialkolbenpumpe 1 mit Taumelscheibenantrieb 2 und nasslaufendem Elektromotor 3, der Elektromotor 3 weist eine Antriebswelle 4 mit Antriebsscheibe 5 auf.The drawing shows a longitudinal section of an axial piston pump 1 with a swash plate drive 2 and wet-running electric motor 3, the electric motor 3 has a drive shaft 4 Drive disc 5 on.

Es sind nun folgende Massnahmen vorgesehen:

  • die Antriebsscheibe 5 stützt sich über Wälzlager 6 auf einem Elektromotorlagerlaufring 7 ab,
  • eine Taumelscheibe 8 stützt sich über Wälzlager 9 auf der Antriebsscheibe 5 ab,
  • paarweise angeordnete Kolben 10 sind federbelastet und stützen sich an der Taumelscheibe 8 ab,
  • die Kolben 10 sind in ein Zylinderstück 11 eingesetzt,
  • das Zylinderstück 11 ist in ein Pumpengehäuse 12 eingesetzt und spannt eine Ventilscheibe 13 zwischen Gehäuse 12 und Zylinderstück 11 ein,
  • die Ventilscheibe 13 weist Verbindungskanäle 14 für Saug- und Druckkanäle 15, 16 auf,
  • die Verbindungskanäle 14 und die Saugkanäle 15 weisen Rückschlagventile 17 und 18 auf,
  • das Zylinderstück 11 ist durch das Pumpengehäuse 12 und das Pumpengehäuse 12 durch einen Gehäusedeckel 19 belastet,
  • der Gehäusedeckel 19 ist durch eine umgerollte Pumpengehäusewandung 20 belastet,
  • Pumpengehäuse 12 und Gehäusedeckel 19 weisen Saug- und Druckanschlussstutzen 21 und 22 auf.
    • The following measures are now planned:
  • the drive pulley 5 is supported on an electric motor bearing race 7 via roller bearings 6,
  • a swash plate 8 is supported on the drive plate 5 via roller bearings 9,
  • Pistons 10 arranged in pairs are spring-loaded and are supported on the swash plate 8,
  • the pistons 10 are inserted into a cylinder piece 11,
  • the cylinder piece 11 is inserted into a pump housing 12 and clamps a valve disk 13 between the housing 12 and cylinder piece 11,
  • the valve disk 13 has connecting channels 14 for suction and pressure channels 15, 16,
  • the connecting channels 14 and the suction channels 15 have check valves 17 and 18,
  • the cylinder piece 11 is loaded by the pump housing 12 and the pump housing 12 by a housing cover 19,
  • the housing cover 19 is loaded by a rolled pump housing wall 20,
  • Pump housing 12 and housing cover 19 have suction and pressure connection sockets 21 and 22.

    • Diese Massnahmen ergeben insgesamt eine für höhere Förderdrücke geeignete Kraftstoffpumpe, die darüber hinaus kostengünstig in Massenfertigung herstellbar ist.Overall, these measures result in a fuel pump suitable for higher delivery pressures, which is also inexpensive to mass produce.

    Es ist hierbei vorteilhaft, wenn folgende Massnahmen getroffen werden, dass die Rückschlagventile 17, 18 als Blattfederventile 23, 24 ausgeführt und zwischen Ventilscheibe 13 und Gehäuse 12 bzw. Ventilscheibe 13 und Zylinderstück 11 eingespannt sind.It is advantageous here if the following measures are taken that the check valves 17, 18 designed as leaf spring valves 23, 24 and between valve disk 13 and housing 12 or valve disk 13 and cylinder piece 11 are clamped.

    Es ist ersichtlich, dass die Kolben 10 durch eine gemeinsame Federwippe 25 belastet sind, die sich an einem Zentrierzapfen 26 des Zylinderstückes 11 abstützt, wobei die Taumelscheibe 8 mit einer Zentrierausnehmung 27 auf den Zentrierzapfen 26 aufgesetzt ist. Durch die Federwippe 25 wird erreicht, dass ein Kolben einen Saughub und der andere einen Druckhub ausführt.It can be seen that the pistons 10 are loaded by a common spring rocker 25, which is supported on a centering pin 26 of the cylinder piece 11, the swash plate 8 is placed with a centering recess 27 on the centering pin 26. By the spring rocker 25 is achieved that a piston a suction stroke and the other one Pressure stroke executes.

    Dadurch, dass die Taumelscheibe 8 unverdrehbar im Gehäuse 12 bzw. Zylinderstück 11 geführt ist, kann verhindert werden, dass grössere Reibungskräfte zwischen Kolben 10 und Taumelscheibe 8 wirken können. Die auf die Kolben 10 wirkenden Federkräfte der Federwippe 25 dienen einem Toleranzausgleich.The fact that the swash plate 8 cannot rotate in the housing 12 or cylinder piece 11 is guided, can be prevented that greater frictional forces between the piston 10 and Swashplate 8 can act. The spring forces of the spring rocker acting on the piston 10 25 serve to compensate for tolerances.

    Es hat sich als vorteilhaft herausgestellt, dass der Elektromotor 3 im Saugbereich der Pumpe, d. h. zwischen dem Sauganschlussstutzen 21 und den Saugkanälen 15 angeordnet ist, wobei dann Ventilzungen 28 des zwischen Ventilscheibe 13 und Zylinderstück 11 eingespannten Blattfederventils 24 direkt auf die Saugkanäle 15 einwirken und Ventilzungen 29 des zwischen Gehäuse 12 und Ventilscheibe 13 eingespannten Blattfederventils 23 direkt auf die Verbindungskanäle 14 einwirken.It has proven advantageous that the electric motor 3 in the suction area of the pump, d. H. is arranged between the suction connection piece 21 and the suction channels 15, then valve tongues 28 of the clamped between valve disc 13 and cylinder piece 11 Leaf spring valve 24 act directly on the suction channels 15 and valve tongues 29 of the leaf spring valve 23 clamped between the housing 12 and the valve disk 13 directly the connection channels 14 act.

    Claims (9)

    Axialkolbenpumpe mit Taumelscheibenantrieb und nasslaufendem Elektromotor, der Elektromotor weist eine Antriebswelle auf, gekennzeichnet durch folgende Merkmale, eine Antriebsscheibe (5) stützt sich über Wälzlager (6) auf einem Elektromotorlagerlaufring (7) ab, eine Taumelscheibe (8) stützt sich über Wälzlager (9) auf der Antriebsscheibe (5) ab, paarweise angeordnete Kolben (10) sind federbelastet und stützen sich an der Taumelscheibe (8) ab, die Kolben (10) sind in ein Zylinderstück (11) eingesetzt, das Zylinderstück (11) ist in ein Pumpengehäuse (12) eingesetzt und spannt eine Ventilscheibe (13) zwischen Gehäuse (12) und Zylinderstück (11) ein, die Ventilscheibe (13) weist Verbindungskanäle (14) für Saug- und Druckkanäle (15, 16) auf, die Verbindungskanäle (14) und die Saugkanäle (15) weisen Rückschlagventile (17 und 18) auf, das Zylinderstück (11) ist durch das Pumpengehäuse (12) und das Pumpengehäuse (12) durch einen Gehäusedeckel (19) belastet, der Gehäusedeckel (19) ist durch eine umgerollte Pumpengehäusewandung (20) belastet, Pumpengehäuse (12) und Gehäusedeckel (19) weisen Saug- und Druckanschlussstutzen (21 und 22) auf. Axial piston pump with swash plate drive and wet-running electric motor, the electric motor has a drive shaft, characterized by the following features , a drive pulley (5) is supported on an electric motor bearing race (7) via roller bearings (6), a swash plate (8) is supported on the drive plate (5) via roller bearings (9), Pistons (10) arranged in pairs are spring-loaded and are supported on the swash plate (8), the pistons (10) are inserted into a cylinder piece (11), the cylinder piece (11) is inserted into a pump housing (12) and clamps a valve disk (13) between the housing (12) and cylinder piece (11), the valve disc (13) has connecting channels (14) for suction and pressure channels (15, 16), the connecting channels (14) and the suction channels (15) have check valves (17 and 18), the cylinder piece (11) is loaded by the pump housing (12) and the pump housing (12) by a housing cover (19), the housing cover (19) is loaded by a rolled-over pump housing wall (20), Pump housing (12) and housing cover (19) have suction and pressure connection sockets (21 and 22). Kolbenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Rückschlagventile (17, 18) als Blattfederventile (23, 24) ausgeführt und zwischen Ventilscheibe (13) und Gehäuse (12) bzw. Ventilscheibe (13) und Zylinderstück (11) eingespannt sind.Piston pump according to claim 1, characterized in that the check valves (17, 18) are designed as leaf spring valves (23, 24) and are clamped between the valve disc (13) and housing (12) or valve disc (13) and cylinder piece (11). Kolbenpumpe nach Anspruch 2, dadurch gekennzeichnet, dass die Kolben (10) durch eine gemeinsame Federwippe (25) belastet sind, wobei die Federwippe (25) sich an einem Zentrierzapfen (26) des Zylinderstückes (11) abstützt. Piston pump according to claim 2, characterized in that the pistons (10) are loaded by a common spring rocker (25), the spring rocker (25) being supported on a centering pin (26) of the cylinder piece (11). Kolbenpumpe nach Anspruch 3, dadurch gekennzeichnet, dass die Taumelscheibe (8) mit einer Zentrierausnehmung (27) auf den Zentrierzapfen (26) aufgesetzt ist.Piston pump according to claim 3, characterized in that the swash plate (8) with a centering recess (27) is placed on the centering pin (26). Kolbenpumpe nach Anspruch 4, dadurch gekennzeichnet, dass die Taumelscheibe (8) unverdrehbar im Gehäuse (12) bzw. Zylinderstück (11) geführt ist.Piston pump according to claim 4, characterized in that the swash plate (8) is guided non-rotatably in the housing (12) or cylinder piece (11). Kolbenpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (3) im Saugbereich der Pumpe, d. h. zwischen Sauganschluss (21) und Saugkanälen (15) angeordnet ist.Piston pump according to one of the preceding claims, characterized in that the electric motor (3) is arranged in the suction region of the pump, ie between the suction connection (21) and the suction channels (15). Kolbenpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Saugkanäle (15) im Zylinderstück (11) angeordnet sind.Piston pump according to one of the preceding claims, characterized in that the suction channels (15) are arranged in the cylinder piece (11). Kolbenpumpe nach Anspruch 7, dadurch gekennzeichnet, dass die Ventilzungen (28) des zwischen Ventilscheibe (13) und Zylinderstück (11) eingespannten Blattfederventils (24) direkt auf die Saugkanäle 15 einwirken.Piston pump according to claim 7, characterized in that the valve tongues (28) of the leaf spring valve (24) clamped between the valve disc (13) and the cylinder piece (11) act directly on the suction channels 15. Kolbenpumpe nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Ventilzungen (29) des zwischen Gehäuse (12) und Ventilscheibe (13) eingespannten Blattfederventils (23) direkt auf die Verbindungskanäle (14) einwirken.Piston pump according to one of the preceding claims, characterized in that the valve tongues (29) of the leaf spring valve (23) clamped between the housing (12) and the valve disc (13) act directly on the connecting channels (14).
    EP00112276A 1999-08-04 2000-06-08 Axial piston pump Expired - Lifetime EP1074734B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19936662A DE19936662A1 (en) 1999-08-04 1999-08-04 Axial piston pump
    DE19936662 1999-08-04

    Publications (3)

    Publication Number Publication Date
    EP1074734A2 true EP1074734A2 (en) 2001-02-07
    EP1074734A3 EP1074734A3 (en) 2001-11-07
    EP1074734B1 EP1074734B1 (en) 2004-09-01

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    ID=7917129

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00112276A Expired - Lifetime EP1074734B1 (en) 1999-08-04 2000-06-08 Axial piston pump

    Country Status (3)

    Country Link
    EP (1) EP1074734B1 (en)
    JP (1) JP4473426B2 (en)
    DE (2) DE19936662A1 (en)

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2002095229A1 (en) * 2001-05-23 2002-11-28 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Compressor
    EP1293663A2 (en) * 2001-07-18 2003-03-19 Kabushiki Kaisha Toyota Jidoshokki Pump unit and fluid supplying system
    WO2006066678A1 (en) * 2004-12-17 2006-06-29 Willy Vogel Ag Autarchic high-pressure lubrication unit
    WO2006122642A1 (en) * 2005-05-20 2006-11-23 Schaeffler Kg Swash plate mechanism
    WO2007140946A1 (en) * 2006-06-02 2007-12-13 Brueninghaus Hydromatik Gmbh Hydrostatic machine having wedge damping
    CN102913409A (en) * 2011-08-03 2013-02-06 三菱电机株式会社 Fuel supply device
    CN105156291A (en) * 2015-11-03 2015-12-16 阜新北鑫星液压有限公司 Rotary multi-plunger hydraulic oil pump
    WO2023057170A1 (en) * 2021-10-05 2023-04-13 Solo Kleinmotoren Gmbh High-pressure piston pump with a small delivery volume

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102004028042B4 (en) * 2004-06-09 2006-06-29 Ab Skf Bearing arrangement for axial piston pump, has second and third bearing rings connected by synthetic body and formed through injection molding process
    JP4335938B2 (en) * 2007-10-26 2009-09-30 三菱電機株式会社 Fuel supply device
    JP4740983B2 (en) * 2008-06-18 2011-08-03 三菱電機株式会社 Fuel supply device

    Citations (2)

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    Publication number Priority date Publication date Assignee Title
    DE8514497U1 (en) 1985-05-15 1985-07-18 Kränzle, Josef, 7918 Illertissen High pressure piston pump
    DE19643134A1 (en) 1995-10-19 1997-04-24 Hitachi Ltd Fuel injection pump for internal combustion engine

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    US2138194A (en) * 1936-03-11 1938-11-29 Blackhawk Mfg Co Hydraulic pump
    ZA834713B (en) * 1982-07-13 1984-03-28 Karl Sauder Axial-piston rump
    US4789308A (en) * 1986-10-10 1988-12-06 Walbro Corporation Self-contained electric fuel pump with output pressure regulation
    DE4403139A1 (en) * 1994-02-02 1995-08-03 Sachsenhydraulik Gmbh Submersed oil pump as heat producer
    JP3651044B2 (en) * 1995-02-24 2005-05-25 日産自動車株式会社 Bellows pump

    Patent Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE8514497U1 (en) 1985-05-15 1985-07-18 Kränzle, Josef, 7918 Illertissen High pressure piston pump
    DE19643134A1 (en) 1995-10-19 1997-04-24 Hitachi Ltd Fuel injection pump for internal combustion engine

    Cited By (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2002095229A1 (en) * 2001-05-23 2002-11-28 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Compressor
    FR2825122A1 (en) * 2001-05-23 2002-11-29 Luk Fahrzeug Hydraulik COMPRESSOR
    US7004729B2 (en) 2001-05-23 2006-02-28 Luk Fahrzeug-Hyrdaulik Gmbh & Co. Kg Compressor with pot-shaped housing and housing sealing cover
    EP1293663A2 (en) * 2001-07-18 2003-03-19 Kabushiki Kaisha Toyota Jidoshokki Pump unit and fluid supplying system
    EP1293663A3 (en) * 2001-07-18 2004-12-01 Kabushiki Kaisha Toyota Jidoshokki Pump unit and fluid supplying system
    WO2006066678A1 (en) * 2004-12-17 2006-06-29 Willy Vogel Ag Autarchic high-pressure lubrication unit
    WO2006122642A1 (en) * 2005-05-20 2006-11-23 Schaeffler Kg Swash plate mechanism
    CN101208542B (en) * 2005-05-20 2012-11-21 谢夫勒科技股份两合公司 Swash plate mechanism
    WO2007140946A1 (en) * 2006-06-02 2007-12-13 Brueninghaus Hydromatik Gmbh Hydrostatic machine having wedge damping
    CN102913409A (en) * 2011-08-03 2013-02-06 三菱电机株式会社 Fuel supply device
    CN105156291A (en) * 2015-11-03 2015-12-16 阜新北鑫星液压有限公司 Rotary multi-plunger hydraulic oil pump
    WO2023057170A1 (en) * 2021-10-05 2023-04-13 Solo Kleinmotoren Gmbh High-pressure piston pump with a small delivery volume

    Also Published As

    Publication number Publication date
    JP4473426B2 (en) 2010-06-02
    EP1074734A3 (en) 2001-11-07
    DE50007597D1 (en) 2004-10-07
    EP1074734B1 (en) 2004-09-01
    JP2001065447A (en) 2001-03-16
    DE19936662A1 (en) 2001-02-15

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