EP1592880B1 - Dispositif d'injection de carburant pour moteur a combustion interne - Google Patents

Dispositif d'injection de carburant pour moteur a combustion interne Download PDF

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Publication number
EP1592880B1
EP1592880B1 EP03773529A EP03773529A EP1592880B1 EP 1592880 B1 EP1592880 B1 EP 1592880B1 EP 03773529 A EP03773529 A EP 03773529A EP 03773529 A EP03773529 A EP 03773529A EP 1592880 B1 EP1592880 B1 EP 1592880B1
Authority
EP
European Patent Office
Prior art keywords
housing part
fuel injection
spring element
injection device
magnet assembly
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
Application number
EP03773529A
Other languages
German (de)
English (en)
Other versions
EP1592880A1 (fr
Inventor
Wolfgang Geiger
Peter Grabandt
Uwe Baerenwaldt
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 EP1592880A1 publication Critical patent/EP1592880A1/fr
Application granted granted Critical
Publication of EP1592880B1 publication Critical patent/EP1592880B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M63/0012—Valves
    • F02M63/0059—Arrangements of valve actuators
    • F02M63/0064—Two or more actuators acting on two or more valve bodies
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
    • 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
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift

Definitions

  • the invention relates to a fuel injection device for an internal combustion engine according to the preamble of claim 1.
  • Such a fuel injection device is known from the literature, for example Diesel Engine Management, Verlag Vieweg, 2nd edition 1998, page 246.
  • This fuel injection device has a solenoid valve for controlling the fuel injection.
  • the solenoid valve is inserted into a housing part and has a magnet assembly with a magnetic coil and a magnet armature. With the housing part, a cover part is joined, by which the magnet assembly of the solenoid valve is held in the housing part.
  • the cover part should preferably be brought together with the housing part after a functional test of the magnetic assembly to avoid unnecessary assembly steps, but then in the functional test, the risk of falling out of the magnet assembly is. Moreover, no compensation of different lengths of the magnet assembly is possible in this known fuel injector, so that it may not be securely fixed in the housing part.
  • a fuel injector having a solenoid valve for controlling fuel injection.
  • the solenoid valve is arranged in a cover part and has a magnet assembly with a magnet coil and a magnet armature.
  • the cover part forms with the magnet assembly a structural unit and can be inserted into a recess of a housing part of the fuel injection device, wherein the cover part by means of a spring element in the form of a bow spring on the housing part can be fastened.
  • the magnet assembly can be checked separately for their function, but there is the danger that this is unintentionally solved in the attachment of the cover part by means of bow spring and the cover part with the magnet assembly is no longer held on the housing part and thus the function of the fuel injector is impaired.
  • the fuel injection device according to the invention with the features of claim 1 has the advantage that the magnet assembly is fixed in the housing part before attaching the lid part. In addition, a length compensation of the magnet assembly and thus their secure fixation is made possible by the spring element. By integrally forming the at least one retaining element with the spring element, only one additional component is required.
  • FIG. 2 shows a housing part of the fuel injection device according to Figure 1 in a longitudinal section with a spring element according to a first embodiment
  • Figure 3 shows the spring element according to the first embodiment in a perspective view
  • Figure 4 the Housing part with the spring element according to the first embodiment in a perspective view
  • Figure 5 the spring element according to a second embodiment in a perspective Representation
  • Figure 6 shows a detail of the housing part with the spring element according to the second embodiment.
  • FIG. 1 schematically shows a fuel injection device for an internal combustion engine, for example of a motor vehicle.
  • the internal combustion engine is preferably a self-igniting internal combustion engine and has one or more cylinders.
  • the fuel injection device may be formed, for example, as shown in Figure 1 as a pump-nozzle unit, each having a high-pressure fuel pump 10 and a fuel injection valve 12 for each cylinder of the internal combustion engine, which form a common structural unit.
  • At least one solenoid valve 56, 60 for controlling the fuel injection is arranged at the pump-nozzle unit.
  • the fuel injector may be formed as a pump-line-nozzle unit, in which also for each cylinder of the internal combustion engine each have a high-pressure fuel pump and a fuel injection valve are present, however, are arranged separately from each other and are connected to each other via a hydraulic line.
  • a solenoid valve for controlling the fuel injection is arranged on the high-pressure fuel pump or the fuel injection valve of the pump-line-nozzle unit.
  • the fuel injection device can also be designed as a common rail system, in which fuel is conveyed by a high-pressure fuel pump into a memory, are connected to the arranged on the cylinders of the internal combustion engine injectors, on each of which a solenoid valve for controlling the fuel injection is arranged.
  • the fuel injection device can also as Fuel injection pump may be formed, is conveyed by the fuel under high pressure and connected to the arranged on the cylinders of the internal combustion engine fuel injection valves, wherein on the fuel injection pump, a solenoid valve for controlling the high-pressure generation and thus the fuel injection is arranged.
  • the high-pressure fuel pump 10 has a tightly guided in a cylinder bore 16 of a pump body 18 pump piston 20 which limits a pump working chamber 22 in the cylinder bore 16.
  • the pump piston 20 is driven by a cam 24 of a camshaft of the internal combustion engine at least indirectly, for example via a rocker arm against the force of a return spring 26 in a reciprocating motion.
  • the pump working chamber 22 is supplied with fuel from a fuel reservoir 28, for example by means of a feed pump 29 during the suction stroke of the pump piston 20.
  • the fuel injection valve 12 has a connected to the pump body 18 valve body 30 which may be formed in several parts, and in which in a bore 32, an injection valve member 34 is longitudinally displaceably guided. Between the valve body 30 and the pump body 18, an intermediate body 36 is arranged.
  • the valve body 30 has at its end facing the combustion chamber of the cylinder of the internal combustion engine at least one, preferably a plurality of injection openings 38.
  • the injection valve member 34 has, at its end region facing the combustion chamber, an approximately conical sealing surface 40, for example, which engages with a valve body 30 in the valve body 30 its end face facing the combustion chamber formed valve seat 41 cooperates, from or after the discharge the injection ports 32.
  • annular space 42 is provided between the injection valve member 34 and the bore 32 toward the valve seat 41, which merges in its end region remote from the valve seat 41 by a radial widening of the bore 32 into a pressure chamber 44 surrounding the injection valve member 34.
  • the injection valve member 34 has at the level of the pressure chamber 44 by a change in cross section on a valve seat 41 directed towards the pressure shoulder 46.
  • a prestressed closing spring 48 At the end remote from the combustion chamber of the injection valve member 34 engages a prestressed closing spring 48, through which the injection valve member 34 is pressed to the valve seat 41.
  • the closing spring 48 is arranged in a spring chamber 49 in the valve body 30 or in the intermediate body 36, which adjoins the bore 30.
  • a bore 50 with a smaller diameter connects.
  • a control piston 51 is guided tightly, which limits a control pressure chamber 52 in the bore 50.
  • the control piston 51 is supported on the injection valve member 34 and generates depending on the pressure prevailing in the control pressure chamber 52, a closing spring 48 supporting force in the closing direction of the injection valve member 34.
  • the connection 55 is controlled by a first solenoid valve 56, which is designed as a 2/2-way valve.
  • the solenoid valve 56 is driven by an electronic control device 57 and will be explained in more detail below. From the channel 54, another channel 58 leads into the control pressure chamber 52 and the Control pressure chamber 52 has a connection 59 with a discharge area, for example, a return to the fuel tank 28. The connection 59 of the control pressure chamber 52 with the discharge area is controlled by a second solenoid valve 60, which is also controlled by the control device 57. By the first solenoid valve 56, the pressure buildup in the pump chamber 22 of the high-pressure fuel pump 10 is controlled and by the second solenoid valve 60, the pressure in the control pressure chamber 52 and thereby the opening of the fuel injection valve 12 is controlled.
  • the second solenoid valve 60 and the control pressure chamber 52 may also be omitted, wherein the opening of the fuel injection valve 12 is determined only by the closing spring 48. If the pressure prevailing in the pressure chamber 44 via the pressure shoulder 46 generates a greater force on the injection valve member 34 than the closing spring 48 and the pressure prevailing in the control pressure chamber 52, the injection valve member 34 moves in the opening direction 35 and the injection openings 38 free.
  • the intermediate body 36 is shown enlarged with the arranged in this two solenoid valves 56 and 60.
  • the intermediate body 36 has two recesses 61 emanating from its end face facing the pump body 18, in each of which a magnet assembly 62 of the magnetic valves 56, 60 is inserted.
  • the magnet assembly 62 has in each case a magnetic coil 63 and a magnet armature 64 and optionally further components.
  • the magnet assembly 62 is covered toward the open end of the recesses 61 toward each by a pressure piece 65.
  • the cross-section of the recesses 61 and the magnet assemblies 62 is adapted to each other, for example, circular.
  • the armature 64 is respectively connected to a solenoid valve member 66 through which the connection 55 between the channel 50 and the feed pump 29 is opened or closed or through which the connection 59 of Control pressure chamber 52 is opened or closed with the discharge area.
  • solenoid valve member 66 of the respective solenoid valve 56,60 When not energized solenoid 63, the solenoid valve member 66 of the respective solenoid valve 56,60 is in a first position in which this connection 55,59 is open or closed and when energizing the solenoid 63, the solenoid valve member 66 of the respective solenoid valve 56,60 in a moved second position in which this closes or opens the connection 55,59 accordingly.
  • the magnet assemblies 62 of the two solenoid valves 56,60 held by a respective spring element 70 in the recesses 61.
  • a spring element 70 designed as a round disk spring is provided, which clamps the magnet assembly 62 in the recess 61 in an axial direction, that is, in the direction of the longitudinal axis of the recess 61 and the magnet assembly 62 via the respective pressure piece 65.
  • the two spring elements 70 are integrally formed with each other and connected via a Figure 3 apparent web 71 to each other. The spring elements 70 are bent in the axial direction to produce the required preload.
  • a holding element 72 is formed in the form of a hook.
  • the hook 72 projects from the spring element 70 approximately radially outwards and is bent at its free end in a U-shape inwards.
  • the hook 72 is preferably resilient and engages at least indirectly on the intermediate body 36.
  • a pin 74 is pressed, which extends at least approximately parallel to the longitudinal axes of the recesses 61.
  • the hook 72 of Spring element 70 is hooked on the pin 74 and surrounds this on its protruding from the intermediate body 36 part.
  • the hook 72 may be pressed onto the pin 74 as well.
  • a further holding element is integrally formed, which is formed by two mutually offset in the circumferential direction lugs 75 which engage around at least indirectly the intermediate body 36.
  • the embrace the lugs 75 side In the pump body 18 facing the end face of the intermediate body 36 recesses for the holding elements 72 and 75 and for the two spring elements 70 connecting web 71 are introduced so that they do not protrude beyond the end face of the intermediate body 36.
  • the magnetic assemblies 62 inserted into the intermediate body 36 are secured against falling out by the spring members 70 even during subsequent transport prior to final assembly of the fuel injector.
  • the pump body 18 and the valve body 30 are assembled with the intermediate body 36, the pump body 18 forming a lid portion through which the spring members 70 axially be compressed and clamped over these the magnetic assemblies 62 in the recesses 61 of the intermediate body 36 and thus fixed without play.
  • the spring element 170 is shown according to a second embodiment. In this case, only one spring element 170 is provided for one of the solenoid valves 56, 60. There is the possibility that only the first solenoid valve 56 and a spring element 170 is present for this or that both solenoid valves 56,60 and each have a separate spring element 170 for this is present.
  • the spring element 170 is designed as a disc spring with a circular cross-section and integrally formed thereon is a surrounding retaining element 172 in the form of a securing ring.
  • the securing ring 172 is integrally formed on the spring element 170 via an approximately radially extending web 171.
  • the locking ring 172 is radially elastically deformable.
  • the recess 161 in the intermediate body 136 in which the magnet assembly 62 is inserted, has near its the end face of the intermediate body 136 end facing in its periphery an undercut forming cross-sectional enlargement 174, which may be formed by an annular groove, a depression or a bore, in which the retaining ring 172 can be latched radially outwards.
  • the diameter of the locking ring 172 in the relaxed state is slightly larger than the diameter of the recess 161, wherein the insertion of the spring member 170 into the recess 161 of the locking ring 172 is radially elastically compressed and relaxed in the end position of the spring member 170 to the outside and in the Ring groove 174 engages.
  • the spring element 170 is fixed on the intermediate body 136 and secured by this the magnetic assembly 62 against falling out in the intermediate body 136.
  • the spring element 170 in the axial direction compressed and thereby held the magnet assembly 62 backlash in the intermediate body 136.

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

Claims (10)

  1. Dispositif d'injection de carburant pour moteur à combustion interne, avec au moins une soupape électromagnétique (56, 60) pour la commande de l'injection de carburant, qui est disposé dans une pièce formant boîtier (36 ; 136) et qui comporte un ensemble magnétique (62) avec une bobine magnétique (63) et une source magnétique (64), cet ensemble étant logé dans un évidement (61) de la pièce formant boîtier (36 ; 136), avec une pièce formant couvercle (18) assemblée à la pièce formant boîtier (36 ; 136), au moyen de laquelle l'ensemble magnétique (62) est fixé dans la pièce formant boîtier (36 ; 136),
    caractérisé en ce qu'
    entre la pièce formant couvercle (18) et l'ensemble magnétique (62) un élément ressort (70, 170) contraint l'ensemble magnétique (62) situé dans la pièce formant boîtier (36 ; 136) et au moins un élément de retenue (72, 74 ; 172) formé en une pièce sur l'élément ressort (70 ; 170) maintient cet élément ressort (70 ; 170) contre la pièce formant boîtier (36 ; 136) en permettant de maintenir l'ensemble magnétique (62) dans l'évidement (61) de la pièce formant boîtier (36, 136) avant que la pièce formant couvercle (18) soit assemblée à la pièce formant boîtier (36 ; 136).
  2. Dispositif d'injection de carburant selon la revendication 1,
    caractérisé en ce que
    l'élément ressort (70, 170) est un ressort Belleville.
  3. Dispositif d'injection de carburant selon la revendication 1 ou 2,
    caractérisé en ce qu'
    au moins un élément de retenue (172) est un circlip radialement élastique, qui entoure l'élément ressort (170) et s'enclenche dans la partie formant boîtier (136).
  4. Dispositif d'injection de carburant selon la revendication 3,
    caractérisé en ce qu'
    une contre-dépouille (174) dans laquelle s'enclenche le circlip (172) est formée sur la périphérie de l'évidement (161) de la pièce formant boîtier (136).
  5. Dispositif d'injection de carburant selon la revendication 1 ou 2,
    caractérisé en ce que
    l'au moins un élément de retenue (72) en forme de crochet s'écarte de l'élément ressort (70) de préférence au moins approximativement radialement vers l'extérieur, et s'accroche au moins indirectement à la partie formant boîtier (36).
  6. Dispositif d'injection de carburant selon la revendication 5,
    caractérisé en ce que
    le crochet (72) s'accroche sur une tige (74) fixée sur la pièce formant boîtier (36) ou s'engage par pression sur cette tige (74).
  7. Dispositif d'injection de carburant selon l'une des revendications 1, 2, 5 ou 6,
    caractérisé en ce qu'
    au moins un élément de retenue (75) est formé par deux ergots écartés l'un de l'autre, s'écartant de la périphérie de l'élément ressort (70) de préférence au moins approximativement radialement vers l'extérieur, ils entourent de préférence une tige fixée sur la partie formant boîtier (36) ou s'engagent par pression sur la tige.
  8. Dispositif d'injection de carburant selon la revendication 5 ou 6 et 7,
    caractérisé en ce qu'
    un élément de retenue constitué par le crochet (72) et un autre constitué par les ergots (75) sont formés sur l'élément ressort (70) et ces éléments de retenue (72, 75) sont décalés l'un par rapport à l'autre dans la direction périphérique sur l'élément ressort (70).
  9. Dispositif d'injection de carburant selon la revendication 8,
    caractérisé en ce qu'
    deux soupapes électromagnétiques (56, 60) comportent chacune un ensemble magnétique (62) logé dans un évidement (61) de la pièce formant boîtier (36), un élément ressort (70) est associé à chaque ensemble magnétique (62) et les deux éléments ressorts (70) sont formés en une seule pièce.
  10. Dispositif d'injection de carburant selon la revendication 9,
    caractérisé en ce qu'
    un crochet (72) de retenue est formé sur un élément ressort (70) et des ergots (75) de retenue sont formés sur l'autre élément ressort (70).
EP03773529A 2003-02-06 2003-10-14 Dispositif d'injection de carburant pour moteur a combustion interne Expired - Lifetime EP1592880B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10304742A DE10304742A1 (de) 2003-02-06 2003-02-06 Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine
DE10304742 2003-02-06
PCT/DE2003/003415 WO2004070194A1 (fr) 2003-02-06 2003-10-14 Dispositif d'injection de carburant pour moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1592880A1 EP1592880A1 (fr) 2005-11-09
EP1592880B1 true EP1592880B1 (fr) 2007-03-07

Family

ID=32730798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03773529A Expired - Lifetime EP1592880B1 (fr) 2003-02-06 2003-10-14 Dispositif d'injection de carburant pour moteur a combustion interne

Country Status (5)

Country Link
US (1) US7143955B2 (fr)
EP (1) EP1592880B1 (fr)
JP (1) JP4555688B2 (fr)
DE (2) DE10304742A1 (fr)
WO (1) WO2004070194A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101048589B (zh) * 2004-09-28 2010-05-26 电动内燃机公司 排放达标发动机的带抗阀门开启压力损失阀弹簧的喷油器
ATE494477T1 (de) * 2005-10-25 2011-01-15 Crt Common Rail Technologies Ag Injektor für eine kraftstoffeinspritzanlage sowie kraftstoffeinspritzanlage mit einem solchen injektor
DE102009045262B4 (de) * 2009-10-01 2019-03-28 Seg Automotive Germany Gmbh Relais mit pneumatischer Dämpfung
DE102010034411B4 (de) * 2010-08-14 2018-10-11 Audi Ag Brennkraftmaschine mit Einspritzventil
DE112016005712T5 (de) * 2015-12-14 2018-11-15 Robert Bosch Gmbh Einen Magnetventilmechanismus mit einem Drehkopf umfassender Kraftstoffinjektor

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US4382242A (en) * 1981-12-21 1983-05-03 General Motors Corporation Solenoid operated electrical switch
DE4023828A1 (de) 1990-07-27 1992-01-30 Bosch Gmbh Robert Verfahren zur einstellung eines ventils und ventil
US5339063A (en) * 1993-10-12 1994-08-16 Skf U.S.A., Inc. Solenoid stator assembly for electronically actuated fuel injector
JPH07279793A (ja) * 1994-04-01 1995-10-27 Aisan Ind Co Ltd 電磁式燃料噴射弁
JPH08177679A (ja) * 1994-12-21 1996-07-12 Nippondenso Co Ltd 燃料噴射弁
IT1276503B1 (it) * 1995-07-14 1997-10-31 Elasis Sistema Ricerca Fiat Perfezionamenti ad una valvola di dosaggio a comando elettromagnetico, per un iniettore di combustibile.
JP2811062B2 (ja) * 1996-03-18 1998-10-15 株式会社ケーヒン サイドフィード式燃料噴射弁
JP3774976B2 (ja) * 1997-03-05 2006-05-17 株式会社日本自動車部品総合研究所 蓄圧式燃料噴射装置
US6073862A (en) * 1998-09-16 2000-06-13 Westport Research Inc. Gaseous and liquid fuel injector
DE19849210A1 (de) * 1998-10-26 2000-04-27 Bosch Gmbh Robert Brennstoffeinspritzventil
DE19950761A1 (de) * 1999-10-21 2001-04-26 Bosch Gmbh Robert Brennstoffeinspritzventil
JP3631413B2 (ja) * 2000-04-27 2005-03-23 株式会社デンソー 電磁弁及びそれを用いた燃料噴射装置
DE10050238A1 (de) * 2000-10-11 2002-04-25 Bosch Gmbh Robert Magnetventilbetätigtes Steuermodul zur Fluidkontrolle bei Einspritzsystemen
DE10056038A1 (de) * 2000-11-11 2002-05-16 Bosch Gmbh Robert Brennstoffeinspritzanlage
ITTO20001229A1 (it) * 2000-12-29 2002-06-29 Fiat Ricerche Sistema di montaggio di un iniettore di combustibile per un motore a combustione interna.
US6611186B2 (en) * 2001-02-26 2003-08-26 Woodward Governor Company Solenoid having an elastomeric retaining device and method of manufacturing same without potting

Also Published As

Publication number Publication date
EP1592880A1 (fr) 2005-11-09
JP2006514193A (ja) 2006-04-27
US20060219803A1 (en) 2006-10-05
DE10304742A1 (de) 2004-08-19
DE50306777D1 (de) 2007-04-19
JP4555688B2 (ja) 2010-10-06
US7143955B2 (en) 2006-12-05
WO2004070194A1 (fr) 2004-08-19

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