EP2235355B1 - Injecteur de carburant - Google Patents

Injecteur de carburant Download PDF

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Publication number
EP2235355B1
EP2235355B1 EP08871441A EP08871441A EP2235355B1 EP 2235355 B1 EP2235355 B1 EP 2235355B1 EP 08871441 A EP08871441 A EP 08871441A EP 08871441 A EP08871441 A EP 08871441A EP 2235355 B1 EP2235355 B1 EP 2235355B1
Authority
EP
European Patent Office
Prior art keywords
injector
control valve
component
injector according
valve element
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.)
Not-in-force
Application number
EP08871441A
Other languages
German (de)
English (en)
Other versions
EP2235355A1 (fr
Inventor
Nadja Eisenmenger
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 EP2235355A1 publication Critical patent/EP2235355A1/fr
Application granted granted Critical
Publication of EP2235355B1 publication Critical patent/EP2235355B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8076—Fuel injection apparatus manufacture, repair or assembly involving threaded members
    • 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 injector for injecting fuel into a combustion chamber of an internal combustion engine, in particular a common rail injector, according to the preamble of claim 1.
  • the EP 1 612 403 A1 is a common rail injector with a pressure balanced in the axial direction control valve known.
  • the control valve which has a sleeve-shaped control valve element, the fuel pressure can be influenced within a control chamber bounded on the end side by an injection valve element.
  • the injection valve element is adjusted between an open position and a closed position, wherein the injection valve element releases the fuel flow into the combustion chamber of an internal combustion engine in its open position.
  • the sleeve-shaped control valve is guided with its inner circumference on an axial extension of an injector component which passes centrally through the control valve element and on which the control valve seat is also arranged.
  • an injector in which the sleeve-shaped control valve element of a pressure-balanced in the axial direction of the control valve is guided by means of a guide member on its outer periphery.
  • the guide component is designed as a separate component from the control valve seat having injector component.
  • control valve seat is to be designed as a conical seat, then this is problematic, since the guide component during assembly must be centered consuming relative to the Injektor component to produce a coaxiality between the conical seat and outer guide for the control valve element.
  • the invention has for its object to provide an injector with a guided on the outer circumference control valve element, in which automatically adjusts a good coaxiality between the outer guide and the control valve seat during assembly.
  • the invention is based on the idea of arranging the guide component directly adjacent to the injector component, the contact surfaces between the guide component and the injector component being designed as centering surfaces which are such that the guide component automatically aligns coaxially with the injector component during assembly.
  • an embodiment of the injector with a conical seat formed as a control valve seat can be realized in a simple manner, the invention is not limited to such an embodiment.
  • a trained according to the concept of the invention injector can be realized, for example, with a flat seat.
  • the injector according to the invention ensures good accessibility of the control valve seat during production and on an optional coating process and, on the other hand, optimum coaxiality between the outer guide (guide component) and the control valve seat is ensured.
  • an injector designed according to the concept of the invention combines the advantages of an injector in which a separate guide component is provided in addition to the injector component and an injector in which the control valve element is guided on an axial extension of the injector component.
  • the second centering surface of the injector component and the control valve seat cooperating with the first centering surface of the guide component are manufactured in one clamping.
  • an embodiment is advantageous in which the two centering surfaces form a combination of inner cone and outer cone, so either the first centering as réellekonus transformation and the second centering as an outer cone surface or the first centering surface is formed as an outer cone surface and the second centering surface as an inner cone surface.
  • the inner cone angle and the outer cone angle are selected from an angle range between about 80 ° and about 160 °, wherein other cone angles can be realized.
  • control valve seat is designed as a conical seat.
  • the guide member is suitable with appropriate shape for guiding all possible types of control valve elements.
  • the control valve element is designed such that the control valve is pressure-balanced in the axial direction.
  • the control valve is designed as a valve sleeve, act on the closed control valve exclusively in the radial direction oriented forces. Forces acting in the axial direction are preferably intercepted by a bolt projecting into the control valve element and by the injector component.
  • the bolt is designed as a separate component from the Injektorbauteil for facilitated production of the control valve seat, preferably in the axial direction up to an electromagnet assembly of a electromagnetic actuator and / or supported on an injector closure lid.
  • an embodiment is preferred in which the guide component is pressed against the end, ie with its centering surface, against the injector component, ie against the centering surface of the injector component.
  • the guide member is pressurized by means of an external thread part, in particular with the end face of a male threaded nut, which preferably cooperates with an internal thread on an injector body, in the axial direction of the injector component.
  • an embodiment is preferred in which the outer cone angle and the inner cone angle of the centering, preferably slightly, are different, so that during assembly, the centering first in a radial outside area or in a radially inner area come to rest.
  • the guide member is suppressed, preferably such that the two centering surfaces, at least approximately, abut each other over the entire surface.
  • the guide member and / or the Injektorbauteil must be elastic within limits, to join in the desired deformation during assembly without cracking.
  • the centering even more defined design, at least one of the two centering surfaces, preferably both centering, each be divided into at least two surface areas, for example by providing at least one lying between the surface areas annular groove.
  • a flow of fuel from the control chamber to an injector return is provided in a further development of the invention advantageously that at least one, at least approximately, extending in the radial direction bore is provided as a fuel channel in the guide member. Additionally or alternatively, on the outer circumference of the control valve element and / or on the inner circumference of a Guide bore in the guide member at least one mecanicnanschliff be provided so that at least one axial passage for the outflow of fuel from the control chamber is formed.
  • Fig. 1 a designed as a common rail injector injector 1 for injecting fuel into a combustion chamber of an internal combustion engine is shown.
  • the injector 1 is supplied via a high-pressure supply line 2 from a high-pressure fuel storage 3 (rail) with high pressure, in this embodiment about 2000 bar, standing fuel, especially diesel or gasoline.
  • the fuel high-pressure accumulator 3 is of one, in particular designed as a radial piston pump, high-pressure pump 4 supplied with fuel from a low-pressure reservoir 5.
  • a low pressure region 6 of the injector 1 is hydraulically connected via an injector return 7 to the reservoir 5. In the injector return 7, a later to be explained control amount of fuel is discharged and fed via the high-pressure pump 4 to the high-pressure circuit again.
  • the injector 1 has an injector body 8, in which a one-part or multi-part injection valve element 9 in the axial direction between an open position and a closed position is adjustable. In its open position, the injection valve element 9 releases the fuel flow from a nozzle hole arrangement (not shown) into the combustion chamber of the internal combustion engine (not shown).
  • the injection valve element 9 delimits a control chamber 11, which is arranged in a blind bore 12 of an injector component 13.
  • the control chamber 11 may for example be delimited by a sleeve component, which is spring-loaded in the axial direction by a spring, not shown, on the injector component 13.
  • the pressure chamber 15 is in turn via the high-pressure supply line 2 and a supply channel 16 in the injector 8 with fuel from the high-pressure fuel storage 3 supplied. Via a branched off from the supply channel 16 bore 17 fuel flows directly to a nozzle chamber, not shown, from which then 9 fuel can flow into the combustion chamber when the injection valve element is open.
  • the control chamber 11 is connected to a flow channel 18 extending in the axial direction within the Injektorbauteils 13 with outlet throttle 19 with a valve chamber 20 of a control valve 21 (servo-valve).
  • the valve chamber 20 is bounded in an upper portion radially outwardly by a control valve element 22 designed as a valve sleeve and in the axial direction in the plane of the drawing upwards by a multipart bolt 23 (pressure pin).
  • the bolt 23 is pressurized during operation in the axial direction of the drawing plane upwards, whereby the bolt 23 is supported via a contact plate 24 to an injector 25, which is fixed via a clamping nut 26 on the injector body 8.
  • the control valve 21 is a pressure-balanced valve in the axial direction, since the control valve element 22 formed integrally with an armature plate 27 does not have any hydraulic opening forces when the control valve 21 is closed.
  • the flow cross sections of the outlet throttle 19 and the inlet throttle 14 are matched to one another such that a net outflow of fuel from the control chamber 11 results, with the result that the force acting on the end face 10 of the injection valve element 9 pressure force drops and the injection valve element 9 of its not shown Injector element seat lifts.
  • the amount of fuel flowing to the injector return 7 is the control quantity of fuel mentioned in the introduction, which is then returned to the high-pressure circuit via the high-pressure pump 4.
  • the energization of the electromagnet 29 is interrupted, so that the control valve element 22 is moved by a arranged in the channel 34 compression spring 35 back on its trained on the injector component 13 control valve seat 28.
  • the sleeve-shaped control valve element 22 is guided on its outer circumference.
  • the guide member 33 has a sleeve portion 36 whose inner diameter corresponds to the outer diameter of the control valve element 22 plus a minimum guide clearance.
  • the sleeve portion 36 merges into an abutment portion 37 in its end region, wherein the transverse bores 32 are arranged in the transition region between the sleeve portion 36 and the abutment portion 37.
  • the abutment portion 37 has an inner cone-shaped first centering surface 38 on the side facing the injector component 13, in the plane of the drawing, with which the abutment portion 37 or the guide component 33 rests on an outer cone-shaped second centering surface 39 which abuts the guide component 33 facing, in the drawing plane upper end face of the Injektorbauteils 13 is arranged.
  • the cone angle (inner cone angle and outer cone angle) of the two centering surfaces 38, 39 are identical in the assembled state, but slightly different before assembly, so that in the clamped state of the guide member 33 a full surface contact of the centering surfaces 38, 39 is guaranteed to each other.
  • a male screw 40 is provided, which is with its external thread 41 in engagement with an internal thread 42 of the injector body 8 in a region axially between the anchor plate 27 and the Injektorbauteil 13.
  • annular space 43 is arranged, via the fuel with open control valve 21 from the valve chamber 20 in an overlying armature space 44 and from there into the channel 34 and the Injektor Weglauf 7 can flow.
  • FIG. 1 How to continue Fig. 1 is also between an axial extension 45 of the Injektorbauteils 13, at the free end of the control valve seat 28 is formed and the radially outwardly bounded in a lower portion of the valve space 20 and the inner periphery of the guide member 33, more precisely the abutment portion 37, a further annular space 46 is arranged , which is hydraulically connected via the transverse bores 32 with the annular space 43.
  • Fig. 2 In perspective, both the guide component 33 and the injector component 13 are shown in a cutaway exploded view. Evident is the previously described axial extension 45 of the injector component 13, on the end face of the conical-seat-shaped control valve seat 28 is formed. On a side facing away from the axial extension 45, in the drawing plane lower side, the Injektorbauteil 13 has an annular shoulder 47, with which it is supported in the axial direction on the injector 8 (see. Fig. 1 ).
  • the second centering surface 39 Radially outside and at axial distance from the axial extension 45 is formed as an annular surface, outer conical second centering surface 39 of the Injektorbauteils 13, which cooperates in the assembled state with the first centering surface 38 of the guide member 33.
  • the second centering surface 39 is formed of two partial surfaces 48, 49, which has an intermediate therebetween Ring groove 50 are spaced from each other. It is also conceivable to form the first centering surface 38 as a continuous surface or consisting of more than two partial surfaces.

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)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (11)

  1. Injecteur pour l'injection de carburant dans une chambre de combustion d'un moteur à combustion interne, en particulier un injecteur à rampe commune, comprenant un élément de soupape d'injection (9) pouvant être réglé entre une position de fermeture et une position d'ouverture libérant le flux de carburant dans la chambre de combustion en fonction de la pression de carburant dans une chambre de commande (11), et comprenant une soupape de commande (21) associée à la chambre de commande (11) avec un élément de soupape de commande (22) pouvant être réglé au moyen d'un actionneur (31) par rapport à un siège de soupape de commande (28) disposé au niveau d'un composant de l'injecteur (13), lequel élément de soupape de commande (22) est guidé par un composant de guidage (33) sur sa périphérie extérieure,
    caractérisé en ce que
    le composant de guidage (33) s'applique avec une première surface de centrage (38) contre une deuxième surface de centrage (39) du composant de l'injecteur (13).
  2. Injecteur selon la revendication 1,
    caractérisé en ce que
    la première surface de centrage (38) est une surface conique interne et la deuxième surface de centrage (39) est une surface conique externe, ou en ce que la première surface de centrage (38) est une surface conique externe et la deuxième surface de centrage (39) est une surface conique interne.
  3. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la combinaison de la première surface de centrage (38) et de la deuxième surface de centrage (39) n'est pas autobloquante.
  4. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le siège de soupape de commande (28) est réalisé sous forme de siège conique.
  5. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la soupape de commande (21) est réalisée sous forme de soupape compensée en pression dans la direction axiale.
  6. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de soupape de commande (22) est réalisé sous forme de douille de soupape.
  7. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le composant de guidage (33) est pressé, de préférence au moyen d'un écrou fileté extérieur (40), du côté frontal contre le composant de l'injecteur (13).
  8. Injecteur selon l'une quelconque des revendications 2 à 7,
    caractérisé en ce que
    l'angle de conicité extérieur et l'angle de conicité intérieur sont de préférence légèrement différents avant le montage.
  9. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le composant de guidage (33) et/ou le composant de l'injecteur (13) sont élastiques, de telle sorte que la première et la deuxième surface de centrage (38, 39) s'appliquent au moins approximativement sur toute leur surface l'une contre l'autre.
  10. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la première surface de centrage (38) et/ou la deuxième surface de centrage (39) est/sont formées d'au moins deux surfaces partielles (48, 49) qui sont séparées l'une de l'autre de préférence par le biais d'au moins une rainure annulaire (50).
  11. Injecteur selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    dans le composant de guidage (33), au moins un alésage transversal (32) et/ou au moins un canal axial est/sont prévus radialement entre le composant de guidage (33) et l'élément de soupape de commande (22), par le biais duquel du carburant peut s'écouler dans la direction d'un retour d'injecteur (7) lorsque l'élément de soupape de commande (22) est ouvert.
EP08871441A 2008-01-23 2008-12-30 Injecteur de carburant Not-in-force EP2235355B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810005523 DE102008005523A1 (de) 2008-01-23 2008-01-23 Kraftstoffinjektor
PCT/EP2008/068342 WO2009092508A1 (fr) 2008-01-23 2008-12-30 Injecteur de carburant

Publications (2)

Publication Number Publication Date
EP2235355A1 EP2235355A1 (fr) 2010-10-06
EP2235355B1 true EP2235355B1 (fr) 2013-03-27

Family

ID=40394195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08871441A Not-in-force EP2235355B1 (fr) 2008-01-23 2008-12-30 Injecteur de carburant

Country Status (6)

Country Link
EP (1) EP2235355B1 (fr)
JP (1) JP5193312B2 (fr)
CN (1) CN101925734B (fr)
DE (1) DE102008005523A1 (fr)
RU (1) RU2485344C2 (fr)
WO (1) WO2009092508A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009029116A1 (de) * 2009-09-02 2011-03-03 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
KR102248581B1 (ko) 2013-07-04 2021-05-06 에프. 호프만-라 로슈 아게 혈청 샘플 중 항-약물 항체를 검출하기 위한 간섭-억제된 면역분석
CN104196664B (zh) * 2014-08-22 2019-05-14 中国北方发动机研究所(天津) 一种锥面密封式高压共轨喷油器控制体
DE102014225293A1 (de) * 2014-12-09 2016-06-09 Robert Bosch Gmbh Kraftstoffinjektor
DE102018202107A1 (de) * 2018-02-12 2019-08-14 Robert Bosch Gmbh Elektromagnetisch betätigbares Steuerventil für einen Kraftstoffinjektor und Kraftstoffinjektor
DE102018204492A1 (de) * 2018-03-23 2019-09-26 Robert Bosch Gmbh Kraftstoffinjektor
FR3084702B1 (fr) * 2018-08-01 2021-01-15 Delphi Tech Ip Ltd Methode d'assemblage d'une vanne hydraulique

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Publication number Priority date Publication date Assignee Title
JPH0233875B2 (ja) * 1983-07-15 1990-07-31 Nippon Jidosha Buhin Sogo Kenkyusho Kk Denwaishikiekiatsuhatsuseisochi
SU1178922A1 (ru) * 1983-12-26 1985-09-15 Центральный научно-исследовательский дизельный институт Форсунка
AT394761B (de) * 1985-11-08 1992-06-25 Steyr Daimler Puch Ag Kraftstoff-einspritzduese fuer brennkraftmaschinen
IT239878Y1 (it) * 1996-12-23 2001-03-13 Elasis Sistema Ricerca Fiat Perfezionamenti ad una valvola di dosaggio a comando elettromagneticoper un iniettore di combustibile.
IT1293433B1 (it) * 1997-07-11 1999-03-01 Elasis Sistema Ricerca Fiat Valvola di dosaggio registrabile per un iniettore di combustibile per motori a combustione interna, e relativo metodo di registrazione.
DE10065015A1 (de) * 2000-12-23 2002-07-04 Bosch Gmbh Robert Magnetventil zur Steuerung eines Einspritzventils einer Brennkraftmaschine
DE10346222A1 (de) * 2003-09-23 2005-04-14 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung
JP2005344622A (ja) * 2004-06-03 2005-12-15 Bosch Corp 燃料噴射弁
EP1612403B1 (fr) 2004-06-30 2007-01-10 C.R.F. Società Consortile per Azioni Soupape servo pour controller l'injecteur d'un moteur à combustion interne
DE102005006818A1 (de) * 2005-02-15 2006-08-17 Volkswagen Mechatronic Gmbh & Co. Kg Dichtungseinrichtung für einen Kraftstoffinjektor sowie Verfahren zum Abdichten
DE102006021741A1 (de) * 2006-05-10 2007-11-15 Robert Bosch Gmbh Kraftstoffinjektor mit druckausgeglichenem Steuerventil
KR20070113950A (ko) * 2006-05-25 2007-11-29 씨.알.에프. 쏘시에타 컨서틸 퍼 아지오니 연료 제어 서보 밸브 및 이를 구비한 연료 인젝터
DE102006056840A1 (de) 2006-12-01 2008-06-05 Robert Bosch Gmbh Kraftstoffinjektor

Also Published As

Publication number Publication date
EP2235355A1 (fr) 2010-10-06
WO2009092508A1 (fr) 2009-07-30
CN101925734A (zh) 2010-12-22
RU2010134914A (ru) 2012-02-27
DE102008005523A1 (de) 2009-07-30
RU2485344C2 (ru) 2013-06-20
JP2011510222A (ja) 2011-03-31
JP5193312B2 (ja) 2013-05-08
CN101925734B (zh) 2012-12-05

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