EP2078157B1 - 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

Info

Publication number
EP2078157B1
EP2078157B1 EP07802499A EP07802499A EP2078157B1 EP 2078157 B1 EP2078157 B1 EP 2078157B1 EP 07802499 A EP07802499 A EP 07802499A EP 07802499 A EP07802499 A EP 07802499A EP 2078157 B1 EP2078157 B1 EP 2078157B1
Authority
EP
European Patent Office
Prior art keywords
pressure
fuel injector
solenoid valve
pressure pin
diameter
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
EP07802499A
Other languages
German (de)
English (en)
Other versions
EP2078157A1 (fr
Inventor
Matthias Schnell
Friedrich Howey
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 EP2078157A1 publication Critical patent/EP2078157A1/fr
Application granted granted Critical
Publication of EP2078157B1 publication Critical patent/EP2078157B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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, for example EP-A 1 612 403 known.
  • 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 activated, 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 In order to make do with small magnetic forces for actuating the solenoid valve even at high pressure from the system pressure, 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 in the ideal case, no pressure forces acting on the example designed as a valve needle valve member.
  • a high-pressure inlet which extends from one, a system pressure acting on the control chamber discharge flow restrictor to the seat of the solenoid valve, designed not through holes, but by a pressure plate aligned with a throttle plate and a bore in the throttle plate.
  • the orientation of the pressure pin directly on the throttle plate ensures that the preferably needle-shaped valve member of the solenoid valve is positioned and aligned with the valve seat formed 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 region of the pressure pin which is pressed into this hole.
  • 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.
  • 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 produced 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-in pressure plate in the throttle plate can be processed conveniently in one operation, if the existing of throttle plate and pressed into this pressure pins assembly is, for example, honed.
  • FIG. 1 shows a sleeve-shaped anchor which is slidably received on an armature guide in which a high-pressure drain is formed as a bore.
  • FIG. 1 An in FIG. 1 only partially illustrated fuel injector 10 includes a solenoid valve 12, the armature assembly is denoted 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 FIG. 1 is located above a valve member 22.
  • a control chamber 24 is formed, which is acted upon by an inlet throttle 28 with fuel under system pressure.
  • the valve piece 22 as shown in FIG. 1 also includes a guide portion for a push rod or an injection valve member 30, which in FIG. 1 are only indicated.
  • 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, a high-pressure inlet 42 extends, via which a control chamber 24 is acted upon by standing under system pressure fuel.
  • 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 FIG. 2 includes a push 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 20 At the anchor plate 50 is the anchor plate 20 which is attracted by a solenoid 48 of the solenoid valve 12.
  • the anchor sleeve 50 of in FIG. 2 shown solenoid valve 12 is acted upon via a valve spring 46, which is located on the injector of the in FIG. 2 illustrated fuel injector 10 is supported.
  • FIG. 3 From the sectional view according to FIG. 3 shows that the solenoid valve 12 shown there has the pressure pin 64, on the circumference of which at least one recess is formed.
  • the in FIG. 3 shown pressure pin 64 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 in FIG. 3 shown pressure pin 64 may also be included by means of a press fit 66 in the high pressure drain 52 of the throttle plate 44.
  • 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 in FIG. 3 shown pressure pin 64 with at least one recess is added in the region of the first diameter 74, which is selected smaller than the second diameter 76, within the high pressure drain 52 of the throttle plate 44.
  • the pressure pin 64 with at least one recess may alternatively be added to the mounting by means of a press fit 66 with guide play in the high pressure drain 52 of the throttle plate 44 and - as in FIG. 2 shown - supported on the injector body of the fuel injector 10.
  • the at least one formed on the circumference of the pressure pin 64 recess can - as in FIG. 2 for example, be formed 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 the 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 anchor sleeve 50 of the solenoid valve 12 is - as in FIG. 2 shown 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 which is bounded 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 connected via a high-pressure inlet 42 which extends through the injector of the fuel injector 10 and the throttle plate 44 with the interposition of a in FIG. 2 inlet throttle, not shown, subjected to system pressure.
  • the control unit 24 which is diverted from the control chamber 24 when the seat 68 is open, flows via a drain 80, for example designed as a groove, into a low-pressure region 78 in FIG FIG. 2 shown in section fuel injector from and from there via a low pressure line, for example, in the tank of a motor vehicle back.
  • a drain 80 for example designed as a groove
  • the anchor plate 20 which is received on the anchor sleeve 50, attracted.
  • the armature sleeve 50 lifts off from the seat elevation 70, which, for example, can be formed conically on the upper end face of the throttle plate 44.
  • the 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. Fuel flows out of the control chamber 24 via the high-pressure drain 52 and the outlet throttle 26 formed therein, so that the pressure in the latter drops.
  • the pressure rod 30 or the needle-shaped injection valve member 30 is driven open, so that at the combustion chamber end - not shown here - the fuel injector 10 formed injection openings are released and fuel is injected into the combustion chamber of the internal combustion engine. If the energization of the magnetic coil 48 of the solenoid valve 12, however, interrupted, the anchor sleeve 50, which is displaceably guided on the pressure pin 64 with at least one recess in the region of the second diameter 76, pressed by the valve spring 46 back into the valve seat 68. 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 or the needle-shaped injection valve member 30 is preferably placed back in its seat, so that injection ports at the combustion chamber end of the fuel injector 10 are closed again and the injection is terminated.
  • the pressure pin 64 is formed with its recorded in the high pressure drain 52 area 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 in FIG. 2 illustrated embodiment.
  • 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 drain cross step through the at least one flattening 72 is limited to the circumference of the pressure pin 64.
  • 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 machined as a preassembled assembly via a high precision grinding operation so that surfaces 86 produced in a high surface finish in the seat elevation 70 on the throttle plate 44 and in the portion formed in the second diameter 76 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)

Claims (10)

  1. Injecteur de carburant (10) comprenant une électrovanne (12), qui décharge la pression d'un espace de commande (24) sollicité par une pression de système par le biais d'une alimentation haute pression (42), dont la sortie haute pression (52) présente un étranglement de sortie (26), et qui débouche au niveau d'un siège de soupape (68) de l'électrovanne (12), caractérisé en ce que dans la sortie haute pression (52) d'une plaque d'étranglement (44) est reçue une goupille de pression (64).
  2. Injecteur de carburant (10) selon la revendication 1, caractérisé en ce que la sortie haute pression (52) dans la plaque d'étranglement (44) s'étend de manière excentrée par rapport à l'axe (62) de l'injecteur de carburant (10).
  3. Injecteur de carburant (10) selon la revendication 1, caractérisé en ce que la goupille de pression (64) présente un premier diamètre (74) avec lequel la goupille de pression (64) est reçue avec un ajustement serré (66) dans la sortie haute pression (52).
  4. Injecteur de carburant (10) selon la revendication 1, caractérisé en ce que la goupille de pression (64) présente un deuxième diamètre (76), sur lequel est guidée une douille d'ancrage (50) de l'électrovanne (12).
  5. Injecteur de carburant (10) selon la revendication 1, caractérisé en ce que la goupille de pression (64) présente au moins un évidement à l'intérieur de la région reçue dans la sortie haute pression (52).
  6. Injecteur de carburant (10) selon la revendication 5, caractérisé en ce que l'au moins un évidement est réalisé sous forme de méplat (72) sur la périphérie de la goupille de pression (64).
  7. Injecteur de carburant (10) selon la revendication 1, caractérisé en ce que la plaque d'étranglement (44) présente un siège de soupape (68) au niveau de l'embouchure de la sortie haute pression (52).
  8. Injecteur de carburant (10) selon la revendication 7, caractérisé en ce que le siège de soupape (68) comprend un soulèvement de siège (70) au niveau d'un côté frontal d'une douille d'ancrage (50) ou est réalisé sous forme de siège plat.
  9. Injecteur de carburant (10) selon la revendication 4, caractérisé en ce que la goupille de pression (64) montée dans la plaque d'étranglement (44) et la plaque d'étranglement (44) présentent des surfaces meulées (86) fabriquées en une passe de travail dans le deuxième diamètre (76) et dans la région d'un rehaussement (70).
  10. Injecteur de carburant (10) selon la revendication 1, caractérisé en ce que la plaque d'étranglement (44) présente une sortie (80) par le biais de laquelle une quantité de commande commandée hors de l'espace de commande (24) afflue vers une région basse pression (58) de l'injecteur de carburant (10).
EP07802499A 2006-10-04 2007-08-06 Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique Not-in-force EP2078157B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006046898A DE102006046898A1 (de) 2006-10-04 2006-10-04 Drosselplatte für Magnetventil
PCT/EP2007/058105 WO2008040588A1 (fr) 2006-10-04 2007-08-06 Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique

Publications (2)

Publication Number Publication Date
EP2078157A1 EP2078157A1 (fr) 2009-07-15
EP2078157B1 true EP2078157B1 (fr) 2009-11-18

Family

ID=38824993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07802499A Not-in-force EP2078157B1 (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)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007018472A1 (de) * 2007-04-19 2008-10-23 Robert Bosch Gmbh Kraftstoffinjektor mit Magnetventil
DE102007025614A1 (de) * 2007-06-01 2008-12-04 Robert Bosch Gmbh Ankerhubeinstellung für Magnetventil
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
AT510462B1 (de) * 2010-09-22 2014-04-15 Bosch Gmbh Robert Verfahren zum überprüfen und instandsetzen eines kraftstoffinjektors
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004005699A1 (fr) * 2002-07-02 2004-01-15 Siemens Aktiengesellschaft Injecteur pour un systeme d'injection
KR100730841B1 (ko) * 2003-06-04 2007-06-20 봇슈 가부시키가이샤 연료 분사 장치
JP3997983B2 (ja) * 2003-11-10 2007-10-24 株式会社デンソー 圧電素子駆動による３方向切替弁およびその３方向切替弁を用いた燃料噴射弁
DE102005062549A1 (de) * 2005-12-27 2007-07-05 Robert Bosch Gmbh Kraftstoffinjektor für eine Brennkraftmaschine, sowie Verfahren zum Herstellen eines Steuerventils für einen Kraftstoffinjektor

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
WO2008040588A1 (fr) 2008-04-10
ATE449251T1 (de) 2009-12-15

Similar Documents

Publication Publication Date Title
EP2078157B1 (fr) Injecteur de carburant comprenant une plaque d'étranglement et une vanne magnétique
EP2235354B1 (fr) Injecteur de carburant dont l'élément soupape de commande présente une zone d'appui
EP2156046B1 (fr) Ajustement de trajet d'armature pour électrovanne
EP2102486B1 (fr) Injecteur avec une soupape de commande à compensation de pression axiale
WO2009068414A1 (fr) Buse d'injection de carburant comprenant une soupape à bille
DE102011078407A1 (de) Schaltventil zur Steuerung eines Kraftstoffinjektors und Kraftstoffinjektor
EP2201237B1 (fr) Soupape de commande pour injecteur de carburant
EP1865192B1 (fr) Injecteur de carburant doté d'une assistance adaptative à la direction
DE102006057025A1 (de) Magnetventil mit Kugelsitz
EP2021616B1 (fr) Électrovanne à espace d'induit noyé
DE102006015745A1 (de) Kraftstoffinjektor mit direktgesteuertem Einspritzventilglied
WO2001011219A1 (fr) Injecteur a rampe commune
EP2011995A2 (fr) Injecteur doté d'un élément d'aération s'ouvrant vers l'extérieur
EP2147206B1 (fr) Injecteur de carburant avec électrovanne
DE102009046373A1 (de) Magnetventil sowie Kraftstoff-Injektor mit einem Magnetventil
DE102015223043A1 (de) Kraftstoff-Injektor
DE102007009167A1 (de) Mehrwegeventil
DE102007034319A1 (de) Injektor
EP2185807B1 (fr) Vanne de commande pour un injecteur
DE102006047935A1 (de) Kraftstoffinjektor für eine Brennkraftmaschine
WO2009138279A1 (fr) Vanne magnétique à fentes d'induit
DE102007001365A1 (de) Injektor mit Steuer- und Schaltkammer
DE102006048727A1 (de) Kraftstoffinjektor mit Magnetventil
WO2017050463A1 (fr) Soupape d'admission à commande électromagnétique et pompe haute pression munie d'une soupape d'admission
EP1176306A2 (fr) Système d'injection de combustible pour moteurs à combustion interne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090504

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502007002086

Country of ref document: DE

Date of ref document: 20091231

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20091118

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20091118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100318

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100318

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100228

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100218

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20100819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100219

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20100831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100519

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091118

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 449251

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140819

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20140825

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150806

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20191021

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007002086

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210302