WO2008040588A1 - Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique - Google Patents

Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique Download PDF

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Publication number
WO2008040588A1
WO2008040588A1 PCT/EP2007/058105 EP2007058105W WO2008040588A1 WO 2008040588 A1 WO2008040588 A1 WO 2008040588A1 EP 2007058105 W EP2007058105 W EP 2007058105W WO 2008040588 A1 WO2008040588 A1 WO 2008040588A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
fuel injector
throttle plate
pressure pin
solenoid valve
Prior art date
Application number
PCT/EP2007/058105
Other languages
German (de)
English (en)
Inventor
Matthias Schnell
Friedrich Howey
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
Priority to DE502007002086T priority Critical patent/DE502007002086D1/de
Priority to AT07802499T priority patent/ATE449251T1/de
Priority to CN2007800373132A priority patent/CN101523043B/zh
Priority to EP07802499A priority patent/EP2078157B1/fr
Publication of WO2008040588A1 publication Critical patent/WO2008040588A1/fr

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
    • 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
    • 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
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way 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
    • 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
    • F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
    • 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
    • F02M2200/8092—Fuel injection apparatus manufacture, repair or assembly adjusting or calibration
    • 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
    • F02M2547/001—Control chambers formed by movable sleeves
    • 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

  • An injector for injecting fuel in a combustion chamber of an internal combustion engine in which an injection valve member is actuated via a solenoid-operated control valve is known, for example, from EP-A 1 612 403.
  • a flow restrictor from a control room in the fuel return can be closed or released.
  • the control chamber is bounded on one side by a control piston, with which an injection valve is actuated, which releases or closes at least one injection opening in the combustion chamber of the internal combustion engine.
  • the outlet throttle is received in a body, which is provided on the side facing away from the control chamber with a tapered valve seat. In this valve seat, a closing element is adjustable, which is connected to the armature of the solenoid valve.
  • an edge is formed on the closing element, which is provided against the conically shaped seat.
  • the closing element moves on an axial rod, which is integrally connected to the body in which the drainage throttle is formed.
  • a solenoid valve In fuel injectors, which are used in high-pressure accumulator injection systems (common rail), a solenoid valve is attractive as an actuator for actuating the fuel injector for cost and space reasons.
  • the solenoid valve can be made pressure balanced. The pressure balance is achieved in that a guide diameter and the seat diameter of the solenoid valve are identical, so that in the closed state of the solenoid valve ideally no pressure forces act on the example designed as a valve needle valve member.
  • a high-pressure inlet which extends from one, a pressurized with system pressure control chamber discharge throttle to the seat of the solenoid valve, not designed by holes, but by a pressure plate aligned with a throttle plate and a bore in the throttle plate.
  • a pressure pin is designed in its lower region in a smaller diameter and has in this smaller diameter area at least one recess in the form of a flattening, a groove or a bevel or the like.
  • a bore for receiving the pressure pin made in its lower portion in a small diameter is made with a slightly larger diameter. Due to the adjusting game between the smaller diameter in the lower region of the pressure pin and the bore in the throttle plate in a slightly larger diameter, the pressure pin is directed within the available game relative to the throttle plate.
  • the high pressure is performed by the formed in the region of the smaller diameter of the pressure pin, at least one recess to the valve seat.
  • the bore in the throttle plate can be formed with a slightly smaller diameter than the area of the pressure pin which is pressed into this bore.
  • the preferably needle-shaped valve member and the pressure pin can be paired with respect to their diameter prior to assembly of the pressure pin in the throttle plate to produce the guide game.
  • only the pressure pin machined in the lower area can be fitted into the throttle plate.
  • the throttle plate comprising a base plate and the fitted guide pin, can be finished by way of a grinding process.
  • the valve seat and the guide of the needle-shaped valve member can be made in one operation, resulting in a highly accurate design of valve member, valve seat and valve member guide.
  • the pressure pin is movably received in the plate, this can be pushed upwards by the pressure prevailing behind the outlet throttle, which is to be avoided in individual cases. Therefore, the pressure pin is preferably pressed into the throttle plate.
  • the pressing of the pressure pin in the throttle plate also has the advantage that a pressed into the throttle plate thrust pin can be conveniently processed in one operation, when the consisting of throttle plate and in this pressed-in pressure pins assembly is, for example, honed.
  • FIG. 1 shows an embodiment in which an armature of a solenoid valve is accommodated on an armature guide and a high pressure discharge is formed as a bore in the Anker Installation
  • FIG. 2 shows a variant of the high-pressure drain of the control chamber proposed according to the invention with a pressure pin received in a throttle plate and
  • FIG. 2 shows a variant of the high-pressure drain of the control chamber proposed according to the invention with a pressure pin received in a throttle plate and
  • Figure 3 is an illustration of a preassembled assembly of a pressure pin and a throttle plate.
  • Figure 1 shows a sleeve-shaped anchor, which is slidably received on an armature guide in which a high pressure discharge is designed as a bore.
  • a fuel injector 10 which is only partially illustrated in FIG. 1, comprises a solenoid valve 12 whose armature assembly is designated by reference numeral 14.
  • the armature assembly 14 includes an armature guide 16 in which a high pressure drain formed as a bore extends.
  • an anchor bolt 18 is slidably guided, on which an anchor plate 20 is formed in the upper region.
  • the armature guide 16 of the armature assembly 14 as shown in Figure 1 is located above a valve member 22.
  • a control chamber 24 is formed, which is acted upon by an inlet throttle 28 under standing at system pressure fuel.
  • the valve piece 22 as shown in Figure 1 also includes a guide portion for a push rod or an injection valve member 30, which are only indicated in Figure 1.
  • an outlet throttle 26 is formed, which is aligned with the bore in the armature guide 16, which is the high pressure drain.
  • FIG. 2 shows that in the injector body of the fuel injector 10 there is a high-pressure inlet 42, via which a control chamber 24 is acted upon by fuel under system pressure.
  • the high pressure inlet 42 extends in part through a throttle plate 44 within which a high pressure drain 52 extends.
  • the solenoid valve 12 as shown in Figure 2 includes a pressure pin 64, which may for example be loosely received in the injector body of the fuel injector 10 and to which an anchor sleeve 50 is slidably received.
  • the anchor plate 50 At the anchor plate 50 is the anchor plate 20 which is attracted by a solenoid 48 of the solenoid valve 12.
  • the armature sleeve 50 of the solenoid valve 12 shown in Figure 2 is acted upon by a valve spring 46 which is supported on the injector body of the fuel injector 10 shown in Figure 2.
  • FIG. 3 From the sectional view of Figure 3 shows that the solenoid valve 12 shown there has the pressure pin 64, on the circumference at least one recess is formed.
  • the pressure pin 64 shown in Figure 3 with at least one recess is in the throttle plate 44 arranged eccentrically to the injector axis designated by reference numeral 62.
  • a valve space of the solenoid valve 12 is designated by reference numeral 60.
  • the pressure pin 64 shown in Figure 3, for example, in the high-pressure outlet 52 of the throttle plate 44 may be received by means of a press fit 66.
  • the pressure pin 64 with at least one recess on the circumference is formed in a first diameter 74 and in a second diameter 76.
  • the pressure pin 64 shown in FIG. 3 with at least one recess is received in the region of the first diameter 74, which is selected to be smaller than the second diameter 76, within the high-pressure outlet 52 of the throttle plate 44.
  • the pressure pin 64 having at least one recess may alternatively be accommodated for attachment by means of a press fit 66 with guide play in the high pressure drain 52 of the throttle plate 44 and - as shown in Figure 2 - supported on the injector of the fuel injector 10.
  • the at least one formed on the circumference of the pressure pin 64 recess may - as shown in Figure 2 - be formed for example as a flattening 72 in the region of the pressure pin 64, in which it has a first diameter 74 which is selected to be smaller than the second diameter 76 of Pressure pin 64.
  • the anchor sleeve 50 is guided on the pressure pin 64.
  • the anchor sleeve 50 forms with its throttle plate 44 assigning end face a valve seat 68 with a seat lift 70 on the upper end side of the throttle plate 44.
  • the armature sleeve 50 of the solenoid valve 12 is - as shown in Figure 2 - biased by the valve spring 46 which is received within a magnetic core of the solenoid valve 12 which surrounds the solenoid 48 of the solenoid valve 12.
  • control chamber 24 Adjacent to the throttle plate 44 of the fuel injector 10 shown in section in FIG. 2 is the control chamber 24, which is delimited by a control chamber sleeve 82.
  • the control chamber sleeve 82 may for example be received on the push rod 30 or the injection valve member 30 and acted upon by a spring 84, so that the control chamber sleeve 82 is employed at the lower end side of the throttle plate 44.
  • the control chamber 24 is acted upon by a high-pressure inlet 42 which extends through the injector body of the fuel injector 10 and the throttle plate 44 with the interposition of an inlet throttle, not shown in Figure 2, with system pressure.
  • the control quantity diverted from the control chamber 24 when the seat 68 is open flows, via a drain 80, for example, into a low-pressure region 78 of the fuel injector shown in section in FIG. 2, and from there back into the tank of a motor vehicle via a low-pressure line.
  • a drain 80 for example, into a low-pressure region 78 of the fuel injector shown in section in FIG. 2, and from there back into the tank of a motor vehicle via a low-pressure line.
  • the armature plate 20 which is received on the armature sleeve 50, is attracted.
  • the armature sleeve 50 lifts off from the seat elevation 70, which, for example, can be designed conically on the upper end face of the throttle plate 44.
  • valve seat 68 may also be designed as a flat seat, which is arranged, for example, on the upper side of the throttle plate 44.
  • the pressure rod 30 or the preferably needle-shaped injection valve member 30 is driven open immediately, so that injection openings formed at the combustion chamber end - not shown here - of the fuel injector 10 are released and fuel is injected into the combustion chamber of the internal combustion engine.
  • the armature sleeve 50 which is slidably guided on the pressure pin 64 with at least one recess in the region of the second diameter 76, is pushed back into the valve seat 68 by the valve spring 46.
  • the pressure relief of the control chamber 24 is thus canceled and the pressure in the control chamber 24 increases again. Due to the pressure increase in the control chamber 24, the push rod 30 and the preferably needle-shaped injection valve member 30 is placed back in its seat, so that injection ports on the combustion chamber side end of the fuel injector 10 are closed again and the injection is terminated.
  • the pressure pin 64 with its area recorded in the high-pressure drain 52 is formed in the first diameter 74.
  • this area is the at least one recess that can be performed as a flattening 72 as a bevel, as a groove or the like.
  • the at least one flat 72 on the circumference of the pressure pin 64 leads the high pressure to the valve seat 68 of the solenoid valve 12 in the embodiment variant shown in FIG.
  • a high pressure drain 52 performing bore in the throttle plate 44 can be made in a slightly larger diameter, so that the pressure pin 64 aligns with at least one formed on the circumference of the flattening 72 within the guide game on the throttle plate 44.
  • the pressure pin 64 can be fixed with its formed in the first diameter 74 area with a press fit 66 in the throttle plate 44, so that the high-pressure flow cross section through the at least one Flattening 72 is limited to the circumference of the pressure pin 64. From the illustration according to FIG. 3, a preassembled assembly of throttle plate and thrust pin can be seen.
  • the pressure pin 64 Before mounting the pressure pin 64 in the throttle plate 44, the pressure pin 64 is paired with respect to the guide clearance to the inner diameter of the anchor sleeve 50 with this. Thus, a guide play between the second diameter 76 of the pressure pin 64 and the anchor sleeve 50 is made. The only in the lower area, d. H. In the region in which the first diameter 74 is formed, machined pressure pin 64 can now be pressed into the throttle plate 44, for example with a press fit 66.
  • the preassembled assembly of throttle plate 44 and thrust pin 64 can now be edited as a preassembled assembly via a high-precision grinding process, so that in a high surface quality produced surfaces 86 in the region of the seat elevation 70 on the throttle plate 44 and in the region formed in the second diameter 76 section of the pressure pin 64 generate.
  • Preference is given in one operation in the seat elevation 70 and the guide portion of the anchor sleeve 50, d. H. in the portion of the pressure pin 64 in which it is formed in the second diameter 76, highly accurately machined surfaces 86 generated.

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)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne un injecteur de carburant (10) comprenant une vanne magnétique (12). Celle-ci permet de décompresser un espace de commande (24) alimenté par l'intermédiaire d'une arrivée de haute pression (42) avec une pression de système. L'espace de commande (24) comprend une évacuation de haute pression (52) dans laquelle se trouve un restricteur d'évacuation (26) et qui débouche dans un siège (68) de la vanne magnétique (12). Une tige de pression (64) est logée dans l'évacuation de haute pression (52), dans une plaque d'étranglement (44).
PCT/EP2007/058105 2006-10-04 2007-08-06 Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique WO2008040588A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502007002086T DE502007002086D1 (de) 2006-10-04 2007-08-06 Kraftstoffinjektor mit einer drosselplatte und einem magnetventil
AT07802499T ATE449251T1 (de) 2006-10-04 2007-08-06 Kraftstoffinjektor mit einer drosselplatte und einem magnetventil
CN2007800373132A CN101523043B (zh) 2006-10-04 2007-08-06 具有一个节流板及一个电磁阀的燃料喷射器
EP07802499A EP2078157B1 (fr) 2006-10-04 2007-08-06 Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006046898.8 2006-10-04
DE102006046898A DE102006046898A1 (de) 2006-10-04 2006-10-04 Drosselplatte für Magnetventil

Publications (1)

Publication Number Publication Date
WO2008040588A1 true WO2008040588A1 (fr) 2008-04-10

Family

ID=38824993

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/058105 WO2008040588A1 (fr) 2006-10-04 2007-08-06 Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique

Country Status (5)

Country Link
EP (1) EP2078157B1 (fr)
CN (1) CN101523043B (fr)
AT (1) ATE449251T1 (fr)
DE (2) DE102006046898A1 (fr)
WO (1) WO2008040588A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008128884A1 (fr) * 2007-04-19 2008-10-30 Robert Bosch Gmbh Injecteur de carburant avec électrovanne
WO2008145514A1 (fr) * 2007-06-01 2008-12-04 Robert Bosch Gmbh Ajustement de trajet d'armature pour électrovanne
US20130185908A1 (en) * 2010-09-22 2013-07-25 Robert Bosch Gmbh Method for testing and repairing a fuel injector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025961A1 (de) * 2007-06-04 2008-12-11 Robert Bosch Gmbh Injektor
DE102008003348A1 (de) * 2008-01-07 2009-07-09 Robert Bosch Gmbh Kraftstoffinjektor
DE102010001170A1 (de) * 2010-01-25 2011-07-28 Robert Bosch GmbH, 70469 Einspritzvorrichtung mit reduzierten Druckschwingungen
DE102015213739A1 (de) * 2015-07-21 2017-01-26 Robert Bosch Gmbh Kraftstoffinjektor und Verfahren zur Herstellung eines Kraftstoffinjektors
DE102016224208A1 (de) * 2016-12-06 2018-06-07 Robert Bosch Gmbh Elektromagnetisch betätigbares Steuerventil für einen Kraftstoffinjektor, Kraftstoffinjektor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005704A1 (fr) * 2002-07-02 2004-01-15 Siemens Aktiengesellschaft Procede de fabrication d'un module dote d'un insert mobile pour une soupape d'injection et soupape d'injection associee
DE102004054108A1 (de) * 2003-11-10 2005-06-09 Denso Corp., Kariya Dreiwegeventil und dieses aufweisende Brennstoffeinspritzvorrichtung
WO2007073968A1 (fr) * 2005-12-27 2007-07-05 Robert Bosch Gmbh Injecteur de carburant pour moteur a combustion interne ainsi que procede de fabrication d'une soupape de commande pour injecteur de carburant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100730841B1 (ko) * 2003-06-04 2007-06-20 봇슈 가부시키가이샤 연료 분사 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005704A1 (fr) * 2002-07-02 2004-01-15 Siemens Aktiengesellschaft Procede de fabrication d'un module dote d'un insert mobile pour une soupape d'injection et soupape d'injection associee
DE102004054108A1 (de) * 2003-11-10 2005-06-09 Denso Corp., Kariya Dreiwegeventil und dieses aufweisende Brennstoffeinspritzvorrichtung
WO2007073968A1 (fr) * 2005-12-27 2007-07-05 Robert Bosch Gmbh Injecteur de carburant pour moteur a combustion interne ainsi que procede de fabrication d'une soupape de commande pour injecteur de carburant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008128884A1 (fr) * 2007-04-19 2008-10-30 Robert Bosch Gmbh Injecteur de carburant avec électrovanne
WO2008145514A1 (fr) * 2007-06-01 2008-12-04 Robert Bosch Gmbh Ajustement de trajet d'armature pour électrovanne
US20130185908A1 (en) * 2010-09-22 2013-07-25 Robert Bosch Gmbh Method for testing and repairing a fuel injector
US9228552B2 (en) * 2010-09-22 2016-01-05 Robert Bosch Gmbh Method for testing and repairing a fuel injector

Also Published As

Publication number Publication date
DE102006046898A1 (de) 2008-04-10
CN101523043A (zh) 2009-09-02
EP2078157A1 (fr) 2009-07-15
CN101523043B (zh) 2011-08-03
DE502007002086D1 (de) 2009-12-31
ATE449251T1 (de) 2009-12-15
EP2078157B1 (fr) 2009-11-18

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