EP1190174B1 - Pumpenanordnung zur förderung von kraftstoff - Google Patents
Pumpenanordnung zur förderung von kraftstoff Download PDFInfo
- Publication number
- EP1190174B1 EP1190174B1 EP00940210A EP00940210A EP1190174B1 EP 1190174 B1 EP1190174 B1 EP 1190174B1 EP 00940210 A EP00940210 A EP 00940210A EP 00940210 A EP00940210 A EP 00940210A EP 1190174 B1 EP1190174 B1 EP 1190174B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- fuel
- arrangement
- main feed
- run
- 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.)
- Expired - Lifetime
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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/007—Venting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
- F04B49/243—Bypassing by keeping open the inlet valve
Definitions
- the present invention relates to a pump arrangement for Fuel, with a main feed pump and one upstream pre-feed pump, which is a fuel flow via a fuel line from a tank and the total fuel flow promoted by a Drive / crank chamber of the main feed pump promotes, in Direction of flow of the total fuel flow after Drive / crank chamber a return for the lubrication flow too the tank and a delivery run for the flow to one Metering unit and further provided to the main feed pump is.
- a pump arrangement for fuel which has a main feed pump designed as a high-pressure pump and an upstream feed pump.
- the pre-feed pump is designed as an electric fuel pump and delivers a fuel flow from a tank via a fuel line.
- the total fuel flow delivered is led through the drive / crank chamber of the main feed pump. After the drive / crank chamber, the total fuel flow is divided into a lubrication flow and a delivery flow.
- the lubrication stream returns to the tank via a return.
- the delivery flow first reaches a metering unit via a delivery run and then on to the main delivery pump.
- the main feed pump has at least one pump cylinder on, which delimits a pump chamber in which a piston blows is movably guided.
- the reciprocation of the piston in the pump chamber to effect, the main feed pump has the known Pump arrangement also on drive means, for example a drive shaft are formed.
- the drive means turn or move in at high speeds a so-called drive or crank chamber.
- the Pre-feed pump completely pumped total fuel flow led through the drive / crank chamber of the pump assembly. Due to the high fuel throughput in the area of Drive / crank chamber becomes a particularly good lubrication and enables high heat dissipation. In particular, too Forced lubrication of the drive / crank chamber possible because the total fuel flow with the full delivery pressure of the Pre-feed pump in the drive / crank chamber.
- the object of the present invention is a To improve the pump arrangement of the type mentioned at the outset, in particular to create a pump assembly that is particularly simple and robust and special works reliably.
- the invention is based on of the pump arrangement of the type mentioned at the beginning, that the pre-feed pump is mechanically driven and that between the metering unit and the main feed pump Zero feed run branches in which a zero feed throttle is arranged and on the suction side of the pre-feed pump opens into the fuel line.
- the pump arrangement according to the invention Pre-feed pump as a particularly simple and robust constructed, mechanically driven pump trained.
- the Pump arrangement first had to be used mechanically driven feed pump can be adjusted.
- the pump arrangement according to the invention a zero conveyor run between the metering unit and the main feed pump, d. H. on the suction side of the Main feed pump, branched off and in front of the pre-feed pump, d. H. on the suction side of the pre-feed pump Fuel line opens.
- Zero feed throttle arranged to set a zero feed flow limit a certain flow value.
- the pre-feed pump as a gear pump is formed.
- a gear pump is of a particularly simple design, works reliably and exhibits particularly good efficiency.
- Gear pumps are for use in the hydraulics of motor vehicles particularly suitable.
- Pump arrangement can also piston pumps, Vane pumps, roller cell pumps or other pumps can be used as a feed pump.
- a check valve and in the return a choke arranged one behind the other.
- the further return is parallel to the return further return provided in which one .Ventilation throttle is arranged.
- the further return is For example, as a vent hole with a certain Throttle cross section formed. If the invention Pump arrangement for the delivery of fuel for a Internal combustion engine of a motor vehicle is used is a problem thanks to the further return Restart of the internal combustion engine after an empty tank possible.
- the further return branches in Flow direction of the total material flow after Drive / crank chamber of the main feed pump and opens also in the tank.
- the return and the further Rewind can also be called a common rewind be formed, in which the vent throttle and on the other hand the check valve and the throttle are arranged parallel to each other.
- an overflow valve is arranged and in the flow direction of the Total fuel flow before the feed pump in the Fuel line opens.
- the overflow quantity of the Overflow valve guides the residual flow, i.e. H. the Amount of fuel that is not supplied by the metering unit Main feed pump is forwarded to the suction side of the Pre-feed pump back.
- the metering unit is advantageously as one proportional slide valve.
- the main feed pump as a high pressure pump, especially as a multi-cylinder radial piston eccentric pump, educated.
- a radial piston pump has a drive shaft in a pump housing the pump is rotatably supported about its longitudinal axis.
- the Drive shaft is eccentric or in Provide circumferential direction with cam-like elevations.
- the Radial piston pump has several with respect to the drive shaft radially arranged pump cylinders.
- everyone who Pump cylinder defines a pump chamber in which a piston is guided back and forth. By turning the The shaft drives the pistons in the pump rooms reciprocated.
- the pump arrangement according to the invention preferably delivers the fuel into a storage volume of a common rail injection system.
- a common rail injection system becomes Fuel supply used by internal combustion engines. in the Contrary to conventional high pressure injection systems, in which the fuel to the separate lines individual combustion chambers of the internal combustion engine promoted the injectors in common rail injection systems from a common storage volume - fed that also as a common manifold referred to as.
- common rail injection systems come the advantages of the inventive Pump arrangement especially to carry, because the Manufacturing costs for common rail injection systems reduced and the reliability of these injection systems by using the pump arrangement according to the invention can be significantly improved.
- the main feed pump and the pre-feed pump combined into an integral pump assembly.
- the Pump assembly is outward over the Fuel line and a return line for the lubricating flow and for ventilation with the tank and via a High-pressure line with the storage volume of the common rail injection system connected.
- the necessary connections for the connections to the tank and the storage volume of the common rail injection system can all be connected to one common flange are led outside where they are then particularly easy with the appropriate Connection lines can be connected.
- the integral pump assembly is particularly small be formed.
- the pump arrangement shown in FIG. 1 is concerned is a pump arrangement for a common rail injection system for the fuel supply of petrol and Diesel engines.
- High pressure injection systems where the fuel is over separate lines to the individual combustion chambers of one Internal combustion engine is promoted in common rail injection systems the injectors from a common Storage volume fed, also as a common Distribution rail (“Common Rail”) is called.
- Common Rail Common Distribution rail
- the pump arrangement shown schematically in FIG. 1 is marked in their entirety with the reference number 1.
- the pump arrangement 1 has a main feed pump 2 and an upstream feed pump 3.
- the Pre-feed pump 3 delivers via a fuel line 4 Fuel from a tank 5.
- a fuel filter 6 arranged over that of Delivery pump 3 delivered fuel is guided.
- the of the prefeed pump 3 is total fuel flow by a drive / crank chamber 2a of the main feed pump 2 promoted.
- a return 9 via the one Lubrication flow to the tank 5, and another return 8 is provided, via which a ventilation flow to the tank 5 can flow back.
- a vent throttle 10 In the return 8 is one Vent throttle 10 and a throttle 11 in the return 9 and a check valve 12 is arranged. Also after Drive / crank chamber 2a is a conveyor run 13 for one Flow to a metering unit 14 and on to the Main feed pump 2 is provided.
- the metering unit 14 is as a proportional slide valve is formed.
- the pre-feed pump 3 is a mechanically driven one Gear pump trained.
- the main feed pump 2 is as formed a high pressure pump, especially as one Multi-cylinder radial piston eccentric pump.
- the in Figure 1 only symbolically represented radial piston pump includes one Drive shaft 2b, which is eccentric or in Has cam-like elevations in the circumferential direction (see FIG. 2).
- the radial piston pump also includes several radially arranged with respect to the drive shaft 2b Pump cylinder 2c, each having a pump chamber 2e limit and only one of those shown in Figure 1 is.
- a piston 2d is reciprocated in the pump cylinder 2c movably guided. The piston 2d of the radial piston pump by rotating the drive shaft 2b in the respective Pump cylinder 2c reciprocated.
- the zero conveying run 18 opens in the direction of flow 7 of the total fuel flow before the feed pump 3, i.e. on the suction side of the Pre-feed pump 3, in the fuel line 4.
- Overflow flow 20 in which an overflow valve 21st is arranged.
- the overflow flow 20 opens into Flow direction 7 of the total fuel flow before Prefeed pump 3, i.e. on the suction side of the pre-feed pump 3, into the fuel line 4.
- the pressure of the Overflow valve 21 in the amount of about 6 bar.
- the pressure of the overflow valve 21 is chosen so large that the Lubrication flow through the drive / crank chamber 2a Main feed pump 2 is constant and large enough to good lubrication of the drive shaft 2b and good Ensure heat dissipation from the drive shaft 2b can.
- the pressure of the overflow valve 21 must be so be chosen large that forced lubrication of the Slider bearing in the drive / crank chamber 2a.
- the pump arrangement 1 according to the invention is shown in FIG partially shown in section.
- the pump arrangement 1 has Pump housing 22 in which the main feed pump 2 and Pre-feed pump 3 to form an integral pump assembly are summarized.
- the drive shaft 2b of the The main feed pump 2 is from the outside in the pump housing 22 guided.
- the drive shaft 2b rotates about its longitudinal axis 23 in the drive / crank chamber 2a, which in the pump housing 22 is formed.
- the drive / crank chamber 2a is through a shaft seal 24 to the pump housing 22 to the outside sealed off.
- the total fuel flow ends in Seen longitudinal direction of the drive shaft 2b, approximately in the middle in the drive / crank chamber 2a, so that in the Drive / crank chamber 2a on the way from the mouth into the Drive / crank chamber 2a up to the shaft sealing ring 24 Pressure reduction can take place.
- This has the advantage that at the pump assembly 1 of the invention Shaft sealing ring 24, the entire delivery pressure is not present, which leads to a particularly long durability of the Shaft sealing ring 24 leads.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Description
- Figur 1
- eine schematische Darstellung einer erfindungsgemäßen Pumpenanordnung gemäß einer bevorzugten Ausführungsform; und
- Figur 2
- eine erfindungsgemäße Pumpenanordnung teilweise im Schnitt.
Claims (10)
- Pumpenanordnung (1) für Kraftstoff, mit einer Hauptförderpumpe (2) und einer vorgeschalteten. Vorförderpumpe (3), die einen Kraftstoffstrom über eine Kraftstoffleitung (4) aus einem Tank (5) und den geförderten Gesamtkraftstoffstrom durch einen Antrieb-/Kürbelraum (2a) der Hauptförderpumpe (2) fördert, wobei in Strömungsrichtung (7) des Gesamtkraftstoffstroms nach dem Antrieb-/ Kurbelraum (2a) ein Rücklauf (9) für den Schmierstrom zu dem Tank (5) und ein Förderlauf (13) für den Förderstrom zu einer Zumeßeinheit (14) und weiter zu der Hauptförderpumpe (2) vorgesehen ist, dadurch gekennzeichnet, daß die Vorförderpumpe (3) mechanisch angetrieben ist und daß zwischen der Zumeßeinheit (14) und der Hauptförderpumpe (2) ein Nullförderlauf (18) abzweigt, in dem eine Nullförderdrossel (19) angeordnet ist und der auf der Saugseite der Vorförderpumpe (3) in die Kraftstoffleitung (4) mündet.
- Pumpenanordnung (1) nach Anspruch 1, dadurch gekennzeichnet, daß die Vorförderpumpe (3) als eine Zahnradpumpe ausgebildet ist.
- Pumpenanordnung (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in dem Rücklauf (9) ein Rückschlagventil (12) und eine Drossel (11) hintereinander angeordnet sind.
- Pumpenanordnung (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß parallel zu dem Rücklauf (9) ein weiterer Rücklauf (8), in dem eine Entlüftungsdrossel (10) angeordnet ist, vorgesehen ist.
- Pumpenanordnung (1) nach Anspruch 4, dadurch gekennzeichnet, daß von dem Förderlauf (13) ein Überströmlauf (20) abzweigt, in dem ein Überströmventil (21) angeordnet ist und der in Strömungsrichtung (7) des Gesamtkraftstoffstroms vor der Vorförderpumpe (3) in die Kraftstoffleitung (4) mündet.
- Pumpenanordnung (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Zumeßeinheit (14) als ein proportionales Schieberventil ausgebildet ist.
- Pumpenanordnung (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Hauptförderpumpe (2) als eine Hochdruckpumpe ausgebildet ist.
- Pumpenanordnung (1) nach Anspruch 7, dadurch gekennzeichnet, daß die Hochdruckpumpe als eine mehrzylindrige Radialkolben-Exzenterpumpe ausgebildet ist.
- Pumpenanordnung (1) nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Pumpenanordnung (1) den Kraftstoff in ein Speichervolumen eines Common-Rail-Einspritzsystems fördert.
- Pumpenanordnung (1) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Hauptförderpumpe (2) und die Vorförderpumpe (3) zu einer integralen Pumpenbaugruppe zusammengefaßt sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19926308 | 1999-06-09 | ||
DE19926308A DE19926308A1 (de) | 1999-06-09 | 1999-06-09 | Pumpenanordnung für Kraftstoff |
PCT/DE2000/001672 WO2000077389A1 (de) | 1999-06-09 | 2000-05-24 | Pumpenanordnung zur förderung von kraftstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1190174A1 EP1190174A1 (de) | 2002-03-27 |
EP1190174B1 true EP1190174B1 (de) | 2004-10-06 |
Family
ID=7910682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00940210A Expired - Lifetime EP1190174B1 (de) | 1999-06-09 | 2000-05-24 | Pumpenanordnung zur förderung von kraftstoff |
Country Status (5)
Country | Link |
---|---|
US (1) | US6722857B1 (de) |
EP (1) | EP1190174B1 (de) |
JP (1) | JP4662668B2 (de) |
DE (2) | DE19926308A1 (de) |
WO (1) | WO2000077389A1 (de) |
Cited By (1)
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CN102356229A (zh) * | 2009-03-16 | 2012-02-15 | 罗伯特·博世有限公司 | 高压泵 |
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DE10139054C1 (de) | 2001-08-08 | 2003-01-30 | Bosch Gmbh Robert | Verfahren, Computerprogramm, Steuer- und/oder Regelgerät sowie Kraftstoffsystem für eine Brennkraftmaschine, insbesondere mit Direkteinspritzung |
EP1321663A3 (de) * | 2001-12-19 | 2003-07-02 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10205187A1 (de) * | 2002-02-08 | 2003-08-21 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10237592A1 (de) | 2002-08-16 | 2004-03-11 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10307877A1 (de) * | 2003-02-25 | 2004-09-02 | Robert Bosch Gmbh | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
JP3915718B2 (ja) * | 2003-03-11 | 2007-05-16 | 株式会社デンソー | 燃料供給ポンプ |
JP3851287B2 (ja) * | 2003-03-19 | 2006-11-29 | ボッシュ株式会社 | 内燃機関用の燃料噴射装置 |
DE102005027851A1 (de) * | 2005-06-16 | 2006-12-21 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem für eine Brennkraftmaschine |
DE102005033638A1 (de) * | 2005-07-19 | 2007-01-25 | Robert Bosch Gmbh | Kraftstoff-Fördereinrichtung, insbesondere für eine Brennkraftmaschine |
DE102009003051A1 (de) | 2009-05-13 | 2010-11-18 | Robert Bosch Gmbh | Verfahren zum Befüllen eines Kraftstoffsystems für Kraftfahrzeuge |
DE102009027335A1 (de) | 2009-06-30 | 2011-01-05 | Robert Bosch Gmbh | Kraftstoffsystem für eine Brennkraftmaschine |
DE102009028440A1 (de) | 2009-08-11 | 2011-02-17 | Robert Bosch Gmbh | Kraftstoff-Fördereinrichtung für eine Brennkraftmaschine |
DE102010042587A1 (de) * | 2010-10-18 | 2012-04-19 | Robert Bosch Gmbh | Kraftstoffpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine |
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DE102010064374B3 (de) | 2010-12-30 | 2012-07-12 | Continental Automotive Gmbh | Kraftstoffeinspritzsystem einer Brennkraftmaschine sowie dazugehöriges Druckregelverfahren, Steuergerät und Kraftfahrzeug |
DE102012207431A1 (de) * | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | Kraftstoffhochdruckpumpe |
DE102012212062A1 (de) * | 2012-07-11 | 2014-01-16 | Robert Bosch Gmbh | Niederdruckkreislauf für ein Kraftstoffeinspritzsystem, Kraftstoffeinspritzsystem sowie Verfahren zum Betreiben eines Kraftstoffeinspritzsystems |
AT513154B1 (de) * | 2012-09-17 | 2014-02-15 | Bosch Gmbh Robert | Niederdruckkreislauf für ein Kraftstoffeinspritzsystem |
DE102012224408A1 (de) * | 2012-12-27 | 2014-07-17 | Robert Bosch Gmbh | Kraftstoffeinspritzsystem |
DE102013210036A1 (de) * | 2013-05-29 | 2014-12-04 | Robert Bosch Gmbh | Hochdruckpumpe für ein Kraftstoffeinspritzsystem |
GB201508464D0 (en) * | 2015-05-18 | 2015-07-01 | Delphi Int Operations Lux Srl | Pump assembly for a fuel injection system |
CN106246424B (zh) * | 2016-08-29 | 2019-07-30 | 潍柴动力股份有限公司 | 高压油泵、发动机燃油系统及发动机 |
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DE19746563A1 (de) * | 1997-10-22 | 1999-04-29 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen |
JPH11200990A (ja) * | 1998-01-07 | 1999-07-27 | Unisia Jecs Corp | 燃料噴射制御装置 |
DE19801355B4 (de) * | 1998-01-16 | 2004-04-08 | Robert Bosch Gmbh | Hochdruckpumpe zur Kraftstoffversorgung bei Kraftstoffeinspritzsystemen von Brennkraftmaschinen |
-
1999
- 1999-06-09 DE DE19926308A patent/DE19926308A1/de not_active Ceased
-
2000
- 2000-05-24 WO PCT/DE2000/001672 patent/WO2000077389A1/de active IP Right Grant
- 2000-05-24 EP EP00940210A patent/EP1190174B1/de not_active Expired - Lifetime
- 2000-05-24 JP JP2001503420A patent/JP4662668B2/ja not_active Expired - Fee Related
- 2000-05-24 DE DE50008130T patent/DE50008130D1/de not_active Expired - Lifetime
- 2000-05-24 US US10/009,188 patent/US6722857B1/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102356229A (zh) * | 2009-03-16 | 2012-02-15 | 罗伯特·博世有限公司 | 高压泵 |
CN102356229B (zh) * | 2009-03-16 | 2013-11-20 | 罗伯特·博世有限公司 | 高压泵 |
Also Published As
Publication number | Publication date |
---|---|
JP4662668B2 (ja) | 2011-03-30 |
EP1190174A1 (de) | 2002-03-27 |
DE50008130D1 (de) | 2004-11-11 |
WO2000077389A1 (de) | 2000-12-21 |
DE19926308A1 (de) | 2000-12-21 |
US6722857B1 (en) | 2004-04-20 |
JP2003502542A (ja) | 2003-01-21 |
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