EP1185785A1 - Systeme d'injection - Google Patents

Systeme d'injection

Info

Publication number
EP1185785A1
EP1185785A1 EP01909459A EP01909459A EP1185785A1 EP 1185785 A1 EP1185785 A1 EP 1185785A1 EP 01909459 A EP01909459 A EP 01909459A EP 01909459 A EP01909459 A EP 01909459A EP 1185785 A1 EP1185785 A1 EP 1185785A1
Authority
EP
European Patent Office
Prior art keywords
injection
fuel
fuel pump
nozzle
electronically controlled
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
EP01909459A
Other languages
German (de)
English (en)
Other versions
EP1185785B1 (fr
Inventor
Jaroslaw Hlousek
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1185785A1 publication Critical patent/EP1185785A1/fr
Application granted granted Critical
Publication of EP1185785B1 publication Critical patent/EP1185785B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated valves
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/022—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type having an accumulator storing pressurised fuel during pumping stroke of the piston for subsequent delivery to the injector
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Definitions

  • the invention relates to an injection system for an internal combustion engine, with a fuel pump for each cylinder of the internal combustion engine to be supplied, which is electronically controlled, an injection nozzle which is provided with a nozzle needle, and a connecting line between the fuel pump and the injection nozzle.
  • Such an injection system is a single cylinder system in which the injection pump is driven, for example, by a camshaft.
  • the fuel to be injected is pressurized in the fuel pump and fed to the injection nozzle.
  • the start of delivery and the end of delivery of the fuel pump can be controlled, for example, by means of a slide valve which, in a first state, connects the delivery space of the pump to a return line, so that fuel is not delivered, and in a second state closes the connection to the return line , so that a pressure build-up is possible.
  • a slide valve which, in a first state, connects the delivery space of the pump to a return line, so that fuel is not delivered, and in a second state closes the connection to the return line , so that a pressure build-up is possible.
  • the injection pressure is a function of the speed of the camshaft driving the pump.
  • the injection process and a pre-injection can only be performed on the pump side This leads to restrictions with regard to the pre-injection quantity and the shaping of the injection course, as well as to unacceptable scatter between the individual cylinders of the internal combustion engine
  • the object of the invention is therefore to further develop the known injection system in such a way that not only the injection quantity and the start of injection, but also injection pressure, injection process, pre-injection, post-injection and multi-injection can be influenced in the desired manner
  • the injection system according to the invention with the features of claim 1 has the advantage that the fuel volume supplied by the fuel pump can be injected in the desired manner by suitable actuation of the electronically controlled valve on the injection nozzle, additional parameters for controlling the injection process being provided from the start of the request and the end of the fuel pump are independent
  • additional parameters for controlling the injection process being provided from the start of the request and the end of the fuel pump are independent
  • the nozzle needle has opened automatically as soon as a predetermined pressure has been exceeded after the fuel pump has begun, and the nozzle needle has also closed again automatically as soon as a certain minimum pressure has not been reached against the customer, can now be injected with the injection system according to the invention essentially independently of the delivery rate of the fuel pump. It is also possible to use the entire stroke of the pump with the same dimensions of the fuel pump and thereby increase the performance of the system with the same dimensions.
  • the system according to the invention offers greater operational reliability, since in the event of a possible failure of the Fuel pump only, due to the modular structure of the system, the corresponding cylinder of the internal combustion engine is affected.
  • the course of the injection can be variably controlled in the same way as is possible with a common rail system.
  • FIG. 1 shows a schematic, partially sectioned view of an injection system according to the invention in accordance with a first embodiment of the invention
  • FIG. 3 shows a view corresponding to that of FIG. 1, an injection system according to a second embodiment of the invention; 4 shows a sectional view of an injection nozzle which can be used in an injection system according to a third embodiment of the invention;
  • 6a to 6d show various diagrams of parameters which are relevant for the course of the injection with the one according to the invention
  • FIG. 1 shows an injection system according to the invention in accordance with a first embodiment. As the most important components, it contains a fuel pump 10, an injection nozzle 12 and a connecting line 14 between the fuel pump and the injection nozzle.
  • the fuel pump 10 is actuated by a rotating cam 16 and has a pump piston 18 which is adjusted in a pressure chamber 20.
  • the fuel to be injected is fed to the fuel pump 10 through a schematically illustrated fuel inlet 22.
  • a fuel return line 24 is provided for returning to a fuel storage container.
  • the low-pressure system formed by the fuel inlet 22 and a prefeed pump for the fuel, and the pressure-free return system formed by the fuel return 24 are not shown in the drawing.
  • Various leakage returns 26, which can be attributed to the fuel return 24, are also not shown in detail.
  • the fuel pump 10 is provided with a control slide 28 which is actuated by an electronically controlled actuator 30 which is connected to an electronic control unit 32.
  • the control slide 28 can, depending on instructions from the control unit 32, from the control member 30 between an open position in which the pressure chamber 20 of the fuel pump is connected to the fuel inlet 22 and the fuel return 24 so that no fuel delivery takes place, and one closed position are adjusted, in which the connection to the fuel supply and the fuel return is closed and a displacement of the pump piston 18 in the pressure chamber 20 leads to the fact that the fuel present in the pressure chamber 20 is conveyed via the connecting line 14 to the injection nozzle 12.
  • the injection nozzle 12 which is provided with a storage space 13, has a nozzle needle 34 which shows a closed position in which the fuel provided cannot exit from the injection nozzle 12 and an open position in which the fuel provided is injected into the cylinder of the internal combustion engine
  • the nozzle needle 34 is supported on a push rod 36 (see FIG. 2), which closes off a control pressure chamber 38 on one side.
  • the control pressure chamber 38 is provided with an inlet 40, which has an inlet throttle 42 in the form of a bore with a small cross section, and with a Drain 44, which also has a discharge throttle 46 designed as a bore with a small cross section.
  • the cross section of the discharge throttle 46 is larger than the cross section of the feed throttle 42
  • the outlet 44 from the control pressure chamber 38 is controlled by a valve element 48 which can be adjusted by an actuator 50, which is also connected to the control unit 32, between a position closing the outlet 44 and a position releasing the outlet 44 when the valve element 48 Closes drain 44, in the control pressure chamber 38 a fluid supplied via the inlet 40, typically fuel, is accumulated. As a result, a force is exerted on the nozzle needle 34 via the push rod 36, which force counteracts an opening force generated by the fuel pressure applied to the nozzle needle. Hold in the closed position If, on the other hand, the valve element 48 releases the outlet 44, the fluid accumulated in the control pressure chamber 38 can flow out of the latter, since the outlet throttle 46 has a larger cross-section than the inlet throttle 46.
  • the mode of operation of the described injection system is as follows: The injection process is initiated when the actuator 30 is activated. This moves the control slide 28 into the position in which the connection between the pressure chamber and the fuel supply and fuel return is closed. so that the fuel pump delivers. As a result, fuel is compressed by the pump piston 18 in the connecting line 14 and in the injection nozzle 12. The nozzle needle 34 remains in its closed position until the desired pressure level is reached; the time between the closing of the control slide 28 and the opening of the nozzle needle 34 thereby defines the available injection pressure.
  • valve element 48 When the injection process is to begin, the outlet 44 is opened by the valve element 48, so that the nozzle needle 34 can lift off its valve seat.
  • valve element 48 By actuating the valve element 48 independently of the control slide 28, a pre-injection, a main injection with an arbitrary injection course and a post-injection can be controlled.
  • the various parameters that are relevant are shown in the diagram in FIGS. 6a to 6d.
  • 6a shows the current through the actuator 30 as a function of the angle of rotation of the crankshaft of the internal combustion engine to be supplied with fuel.
  • 6a shows the current through the actuator 50 of the injection nozzle as a function of the crankshaft rotation angle.
  • 6c shows the stroke of the control slide 28 as a function of the crankshaft rotation angle.
  • 6d shows the stroke of the valve element 48 as a function of the crankshaft rotation angle.
  • FIG. 3 shows an injection system according to a second embodiment. It differs from the injection system shown in FIG. 1 in that a high-pressure collecting space 21 is arranged inside the fuel pump 10 between the pump piston 18 and the control slide 28.
  • the high-pressure collecting space 21 acts in the manner of a pressure accumulator, so that an even greater time delay between the start of delivery of the fuel pump 10 and the opening of the nozzle needle 34 of the injection nozzle 12 is possible.
  • an injection nozzle 12 for an injection system is shown.
  • a valve spool 52 is used here, so that a 3/2-way valve is formed.
  • An inlet throttle 42 and an outlet throttle 46 are also provided here, the inlet to the nozzle needle 34 being opened when the valve slide 52 is opened. In the closed state of the valve slide 52, the inlet to the nozzle needle 34 and the nozzle space as a whole are relieved by the valve slide 52 to the fuel return 24.
  • the advantage of this embodiment is that the fuel nozzle is only acted upon by the fuel pressure during the injection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un système d'injection pour un moteur à combustion interne, comportant une pompe à carburant (10) commandée électroniquement, pour chaque cylindre à alimenter du moteur à combustion interne, un injecteur (12) pourvu d'un pointeau (34), et une conduite de raccordement (14) entre la pompe à carburant et l'injecteur. L'invention vise à permettre de sélectionner librement le déroulement de l'injection. A cet effet, l'injecteur est pourvu d'une soupape commandée électroniquement (48, 50 ; 50, 52) qui peut commander l'ouverture du pointeau (34).
EP01909459A 2000-01-19 2001-01-13 Systeme d'injection Expired - Lifetime EP1185785B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10002109A DE10002109A1 (de) 2000-01-19 2000-01-19 Einspritzsystem
DE10002109 2000-01-19
PCT/DE2001/000119 WO2001053691A1 (fr) 2000-01-19 2001-01-13 Systeme d'injection

Publications (2)

Publication Number Publication Date
EP1185785A1 true EP1185785A1 (fr) 2002-03-13
EP1185785B1 EP1185785B1 (fr) 2004-10-06

Family

ID=7628002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01909459A Expired - Lifetime EP1185785B1 (fr) 2000-01-19 2001-01-13 Systeme d'injection

Country Status (8)

Country Link
US (1) US6626149B2 (fr)
EP (1) EP1185785B1 (fr)
JP (1) JP4571771B2 (fr)
KR (1) KR100714855B1 (fr)
BR (1) BR0104086B1 (fr)
DE (2) DE10002109A1 (fr)
RU (1) RU2273764C2 (fr)
WO (1) WO2001053691A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE10143423A1 (de) * 2001-09-05 2003-05-08 Bosch Gmbh Robert Kraftstoffeinspritzsystem mit hydraulisch von der Zuleitung entkoppeltem Injektor
FR2836701B1 (fr) * 2002-03-01 2006-12-22 Renault Dispositif de montage d'un tuyau d'injection de carburant
EP1826397A3 (fr) * 2002-05-03 2009-08-05 Delphi Technologies, Inc. Système d'injection de carburant
EP1498600A1 (fr) * 2003-07-18 2005-01-19 Delphi Technologies, Inc. Système de carburant de type Common-Rail
DE102004032181A1 (de) * 2004-07-02 2006-01-19 Robert Bosch Gmbh Kraftstoffeinspritzventil
ITMI20080246A1 (it) * 2008-02-15 2009-08-16 Bosch Gmbh Robert Pompa di alta pressione e impianto di alimentazione di combustibile comprendente tale pompa di alta pressione
DE102008002527A1 (de) * 2008-06-19 2009-12-24 Robert Bosch Gmbh Kraftstoff-Injektor
US9506417B2 (en) * 2014-04-17 2016-11-29 Ford Global Technologies, Llc Methods for detecting high pressure pump bore wear
GB2618549A (en) * 2022-05-09 2023-11-15 Clean Air Power Gt Ltd Modular fuel injector

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GB2289313B (en) * 1994-05-13 1998-09-30 Caterpillar Inc Fluid injector system
US5463996A (en) * 1994-07-29 1995-11-07 Caterpillar Inc. Hydraulically-actuated fluid injector having pre-injection pressurizable fluid storage chamber and direct-operated check
US5687693A (en) * 1994-07-29 1997-11-18 Caterpillar Inc. Hydraulically-actuated fuel injector with direct control needle valve
US5535723A (en) * 1994-07-29 1996-07-16 Caterpillar Inc. Electonically-controlled fluid injector having pre-injection pressurizable fluid storage chamber and outwardly-opening direct-operated check
DE4445586A1 (de) 1994-12-20 1996-06-27 Bosch Gmbh Robert Verfahren zur Reduzierung des Kraftstoffdruckes in einer Kraftstoffeinspritzeinrichtung
JPH0932682A (ja) 1995-07-14 1997-02-04 Isuzu Motors Ltd 内燃機関の燃料噴射装置
US5749717A (en) * 1995-09-12 1998-05-12 Deisel Technology Company Electromagnetic fuel pump for a common rail fuel injection system
DE19535368C2 (de) * 1995-09-25 1998-04-30 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
US5992359A (en) * 1996-06-13 1999-11-30 Rose; Nigel Eric Fluid actuated engines and engine mechanisms
GB2325024B (en) * 1996-07-25 1999-10-13 Cummins Engine Co Inc A fuel injection system and a unit fuel injector
US5819704A (en) * 1996-07-25 1998-10-13 Cummins Engine Company, Inc. Needle controlled fuel system with cyclic pressure generation
US5676114A (en) * 1996-07-25 1997-10-14 Cummins Engine Company, Inc. Needle controlled fuel system with cyclic pressure generation
DE19701879A1 (de) 1997-01-21 1998-07-23 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
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See references of WO0153691A1 *

Also Published As

Publication number Publication date
JP4571771B2 (ja) 2010-10-27
DE10002109A1 (de) 2001-08-02
WO2001053691A1 (fr) 2001-07-26
KR20010113745A (ko) 2001-12-28
DE50103958D1 (de) 2004-11-11
US20020134358A1 (en) 2002-09-26
BR0104086A (pt) 2001-12-26
KR100714855B1 (ko) 2007-05-08
RU2273764C2 (ru) 2006-04-10
EP1185785B1 (fr) 2004-10-06
BR0104086B1 (pt) 2009-05-05
US6626149B2 (en) 2003-09-30
JP2003520327A (ja) 2003-07-02

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