EP1563182B1 - Injecteur dote d'un pointeau a niveaux a entrainement direct pour l'injection de carburant dans un moteur a combustion interne - Google Patents

Injecteur dote d'un pointeau a niveaux a entrainement direct pour l'injection de carburant dans un moteur a combustion interne Download PDF

Info

Publication number
EP1563182B1
EP1563182B1 EP03767443A EP03767443A EP1563182B1 EP 1563182 B1 EP1563182 B1 EP 1563182B1 EP 03767443 A EP03767443 A EP 03767443A EP 03767443 A EP03767443 A EP 03767443A EP 1563182 B1 EP1563182 B1 EP 1563182B1
Authority
EP
European Patent Office
Prior art keywords
nozzle needle
nozzle
actuator
needle
register
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03767443A
Other languages
German (de)
English (en)
Other versions
EP1563182A1 (fr
Inventor
Wendelin KLÜGL
Willibald SCHÜRZ
Clemens Senghaas
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP1563182A1 publication Critical patent/EP1563182A1/fr
Application granted granted Critical
Publication of EP1563182B1 publication Critical patent/EP1563182B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F02M45/086—Having more than one injection-valve controlling discharge orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M2200/46—Valves, e.g. injectors, with concentric valve bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical

Definitions

  • the invention is based on an injector for fuel injection in an internal combustion engine, which has a register nozzle needle, which is arranged in an axial bore of a nozzle body and by means of a compression spring in the non-actuated state, the existing injection holes of the nozzle body closes, according to the preamble of the main claim ,
  • the injectors in certain operating conditions such as high loads z. B. in the acceleration phase much more fuel (gasoline or diesel) must inject into the combustion chambers of the engine than would be required at low or normal load. This problem is aggravated by the fact that under all operating conditions, the legally prescribed limits for emissions protection must be observed.
  • a piezoelectric actuator is often used to control the injector, since this performs by applying a pulsed control voltage a reversible change in length, which can be used to actuate the nozzle needle, especially in the multiple injection.
  • a servo valve has been previously connected between the actuator and the valve unit, which can be formed with a corresponding translation and thus indirectly controls the nozzle needle.
  • an injector with a register nozzle needle which is used to increase the injected Fuel quantity is formed in two stages.
  • the register nozzle needle has a hollow needle into which a second nozzle needle is inserted. Both nozzle needles close in the non-activated state by spring pressure separate injection holes. If the fuel pressure in the nozzle area increased, then first opens the nozzle needle with the weakest spring pressure, ie first the second nozzle needle and with further increasing fuel pressure, the hollow needle to achieve the desired injection quantity of the fuel.
  • This type of control of the two nozzle needle is therefore also indirect and can be done via a servo valve.
  • a fuel injector in which a piezoelectric actuator is used to control the nozzle needle.
  • a simple nozzle needle is used, which raises in the interior of the nozzle body and thereby opens the injection holes.
  • the actuator is designed so that the injection holes are only closed securely when a correspondingly high control voltage U is applied to the actuator.
  • the actuator is locked and exerts a corresponding pressure on a spring on the nozzle needle, which leads to the closing of the injection holes.
  • the nozzle needle is controlled directly by the actuator.
  • the disadvantage is that in the absence of control voltage, the injection holes are not securely closed, so that in an undesirable manner and at inappropriate times fuel can escape.
  • the injector according to the invention for fuel injection into the internal combustion engine having the characterizing features of the main claim has the advantage that on the one hand, a register-nozzle needle can be used with a high injection quantity.
  • the register nozzle needle is directly controlled by a mechanical coupling of an actuator, so that no servo valve is required. It is considered to be particularly advantageous that the actuator is controlled very simply by an applied control voltage can, so that both needles can be specifically controlled. In this way, it is possible to inject an optimal amount of fuel in every operating situation of the engine.
  • a deflection device is arranged between the actuator and the nozzle needle in the case of an inwardly opening register nozzle needle. This ensures that the spray holes of the two stages are safely closed when the actuator is deactivated, so that the fuel can only escape when the actuator is actuated. A dangerous for the engine dripping or running of fuel is thus advantageously prevented.
  • the deflection device can be realized in the simplest case with a lever, at one end of the actuator presses and the second end raises the nozzle needle.
  • a sleeve is advantageously arranged between the injector and the deflection device.
  • the injector can press over the sleeve on the lever.
  • the second end of the lever then presses from below against a collar plate of the register nozzle needle, so that it can lift out of its seat. In this way, a very simple reversal to open the two stages of the nozzle needles is achieved.
  • a favorable solution is also to actuate both nozzle needles by separate levers independently. As a result, for example, a different stroke for the two levers can be achieved.
  • a hydraulic converter can also be used.
  • a hydraulic clearance compensation which is preferably designed as a hydraulic bearing.
  • the hydraulic bearing is advantageously compensated for a game.
  • the invention is based on the object to form an injector for fuel injection with a piezoelectric actuator, which actuates a register nozzle needle directly. This object is achieved with the features of the main claim.
  • an injector 1 recognizable, which has a high pressure port 12 for the fuel supply in the upper part.
  • a nozzle body 4 is screwed by means of a nozzle lock nut 6 on the Injektorgeophuse 1.
  • a register-nozzle needle 5 is disposed in the interior, in FIG. 3 will be explained in more detail.
  • a hydraulic clearance compensation 2 is provided along the central axis in the upper part, which is designed for example as a hydraulic bearing in the open system and thus compensates for leaks occurring.
  • the lower end of the hydraulic bearing 2 is closed by a bottom plate to which the upper part of a piezoelectric actuator 3 is attached.
  • the actuator 3 Downwards, the actuator 3 is closed with a bottom plate 7, which acts on a deflecting device 9 via a sleeve 8.
  • a lever is enough.
  • two levers 9 were provided here, which bear against corresponding two sides of a collar plate 10 of a register nozzle needle 5.
  • the levers 9 are designed so that the sleeve 8 presses with its lower edge on the outer bearing surface of the lever 9, while the inner bearing surfaces from below against the collar plate 10 presses.
  • the lever 9 are based on their abutment on the nozzle body 4. In the construction of the lever, of course, the lever ratio can be used to increase, for example, the stroke of the register nozzle needle 5.
  • a compression spring 11 is disposed within the sleeve 8, which ensures that on the one hand, the stroke transmission of the actuator 3 is free of play.
  • the spring force when the actuator 3 is not activated, i. in de-energized actuator 3 the register-nozzle needles 5 pressed against the corresponding injection holes 16,19 so that they are sealed fuel-tight.
  • the hydraulic force of the fuel pressure still acts as a closing force. This ensures that the drive system with the bottom plate 7, the levers 9 and the collar plate 10 of the register nozzle needle 5 always have play-free contact.
  • FIG. 1 In the upper right part of the FIG. 1 is provided (without reference numeral) an electrical connection for the actuator 3.
  • the fuel flows via the high-pressure port 12 of the injector housing 1 and flows past the hydraulic lash adjuster 2 and the actuator 3 to the nozzle assembly 4, 5.
  • a nozzle needle guide 13 is provided which has four ground key surfaces.
  • FIG. 2 a cross section of the nozzle body 4 is shown. The cross section was at the level of the section line AA ( FIG. 1 ) drawn. He first shows the annular nozzle lock nut 6, which encloses the nozzle body 4. In the center of the register-nozzle needle 5 can be seen as well as the four ground flats to which the fuel can flow.
  • FIG. 3 shows a second embodiment of the invention, in which the nozzle body 4 of FIG. 1 was replaced.
  • the register nozzle needle 5 consists of a hollow needle 15 and a central nozzle needle 17, which are coaxially assembled and each having a collar plate 14 and 18 respectively.
  • the collar plate 18 of the central nozzle needle 17 protrudes at a predetermined distance s over the collar plate 14 of the hollow needle 15 and covers it at least partially.
  • the length of the two nozzle needles is dimensioned such that with closed spray holes 16,19 the collar plate 18 protrudes by the predetermined distance s.
  • the central nozzle needle 17 can thus only move when the hollow needle 15 has completed a distance s corresponding stroke. Thereafter, the central nozzle needle 17 is entrained.
  • the stroke of the two nozzle needles 15, 17 can now be controlled with the amplitude of a control voltage on the actuator.
  • a control voltage With a smaller control voltage, initially only the hollow needle 15 moves until its stroke corresponds to the distance s.
  • the central nozzle needle 17 is entrained and thus opened all the injection ports 16,19 of the two stages.
  • each nozzle needle 15,17 separate lever 9, which are then designed accordingly.
  • the two nozzle needles 15, 17 can advantageously also be controlled with a different stroke.
  • FIG. 4 shows a further embodiment of the invention for a direct actuation of the register nozzle needle 5.
  • the lever of the deflector 9 were replaced by a hydraulic converter.
  • the bottom plate of the actuator 3 is formed as an actuator piston 23 which presses upon extension of the actuator 3 to a pressure chamber 22 filled with fuel. According to the pressure, the fuel then flows via a connecting line 24 into a lifting chamber 25, which surrounds the hollow needle 15 in an annular manner.
  • the collar plate 14 of the hollow needle 15 is also formed in this case as a piston, the first entrains the hollow needle 15 and then the central nozzle needle 17, as previously described.
  • the remaining parts of this FIG. 4 were already too FIG. 3 explained.

Landscapes

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

Abstract

L'invention concerne un injecteur piézo-électrique doté d'un pointeau à niveaux (5) à entraînement direct pour l'injection de carburant dans un moteur à combustion interne. Pour ouvrir les orifices d'injection (16, 19), les deux aiguilles (15, 17) du pointeau à niveaux (5) ne sont pas actionnées, comme cela est usuellement le cas, par une servovalve ou par la pression du carburant développée dans l'injecteur, mais directement par l'actionneur (3) piézo-électrique. Cet actionneur (3) piézo-électrique présente ainsi l'avantage de commander directement les deux aiguilles (15, 17) au moyen de l'amplitude d'une tension de commande qui lui est appliquée. Lorsqu'ils ne sont pas activés, des ressorts de pression (11; 20, 21) maintiennent les orifices d'injection (16, 19) des deux niveaux fermés.

Claims (10)

  1. Injecteur pour l'injection de carburant dans un moteur à combustion, comprenant un pointeau à niveaux (5) comportant d'une aiguille creuse (15) et un pointeau central (17), assemblés coaxialement, lequel pointeau à niveaux (5) est agencé dans un perçage axial d'un corps de buse (4) et qui, au moyen d'un ressort de compression (11), à l'état non commandé, ferme les orifices d'injection présents (16,19) du corps de buse (4), caractérisé en ce qu'un actionneur (3), de préférence piézoélectrique, est agencé au-dessus du pointeau à niveaux (5), en ce que l'actionneur (3) est couplé mécaniquement directement au pointeau à niveaux (5) et en ce que l'actionneur (3) est conçu pour commander progressivement l'aiguille creuse (15) et le pointeau (17) en fonction d'une tension de commande appliquée.
  2. Injecteur selon la revendication 1, caractérisé en ce que, dans le cas d'un pointeau à niveaux (5) s'ouvrant vers l'intérieur, un dispositif de renvoi (9) est agencé entre l'actionneur (3) et le pointeau (5).
  3. Injecteur selon la revendication 1 ou 2, caractérisé en ce que le dispositif de renvoi (9) présente un levier et en ce que le levier est appuyé contre le corps de buse (4).
  4. Injecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le levier peut être commandé par une douille (8) qui est raccordée à l'extrémité mobile de l'actionneur (3) et en ce que le levier (9) presse par le bas contre une plaque de butée (10) du pointeau à niveaux (5).
  5. Injecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le pointeau central (17) présente une plaque de butée (18) et l'aiguille creuse (15) présente une plaque de butée (14), dans lequel la plaque de butée (18) dupointeau (15) recouvre au moins partiellement la plaque de butée (14) de l'aiguille creuse (15) et se trouve à une distance S prédéfinie de celle-ci.
  6. Injecteur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le pointeau à niveaux (5) est conçu de sorte qu'après soulèvement de l'aiguille creuse (15) de la distance S prédéfinie, le pointeau central (17) est également soulevé.
  7. Injecteur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que chacun des deux pointeaux (15,17) peut être commandé indépendamment l'un de l'autre par des leviers séparés (9).
  8. Injecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de renvoi (9) présente, à l'emplacement du levier, un convertisseur hydraulique (22 à 25).
  9. Injecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque pointeau (15, 17) présente un ressort de compression (20,21) qui, dans le cas d'un actionneur (3) sans courant, presse les pointeaux (15,17) contre les orifices d'injection (16,19) et ferme ceux-ci de manière étanche au carburant.
  10. Injecteur selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans la zone de haute pression au-dessus de l'actionneur (3), un dispositif compensateur de jeu hydraulique (2), de préférence un palier hydraulique, est agencé.
EP03767443A 2002-11-20 2003-11-20 Injecteur dote d'un pointeau a niveaux a entrainement direct pour l'injection de carburant dans un moteur a combustion interne Expired - Lifetime EP1563182B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10254186 2002-11-20
DE2002154186 DE10254186A1 (de) 2002-11-20 2002-11-20 Injektor mit einer direkt angetriebenen Register-Düsennadel für die Kraftstoffeinspritzung in einen Verbrennungsmotor
PCT/DE2003/003850 WO2004046540A1 (fr) 2002-11-20 2003-11-20 Injecteur dote d'un pointeau a niveaux a entrainement direct pour l'injection de carburant dans un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1563182A1 EP1563182A1 (fr) 2005-08-17
EP1563182B1 true EP1563182B1 (fr) 2012-01-11

Family

ID=32318582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03767443A Expired - Lifetime EP1563182B1 (fr) 2002-11-20 2003-11-20 Injecteur dote d'un pointeau a niveaux a entrainement direct pour l'injection de carburant dans un moteur a combustion interne

Country Status (3)

Country Link
EP (1) EP1563182B1 (fr)
DE (1) DE10254186A1 (fr)
WO (1) WO2004046540A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10307003B3 (de) * 2003-02-19 2004-05-13 Siemens Ag Einspritzventil für die Einspritzung von Kraftstoff in eine Verbrennungskraftmaschine
DE10336327B4 (de) * 2003-08-07 2016-03-17 Robert Bosch Gmbh Injektor für Kraftstoff-Einspritzsysteme von Brennkraftmaschinen, insbesondere von direkteinspritzenden Dieselmotoren
DE102004011095A1 (de) * 2004-03-06 2005-09-22 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102004060550A1 (de) * 2004-12-16 2006-07-06 Robert Bosch Gmbh Kraftstoffeinspritzdüse
ES2285646T3 (es) * 2005-01-19 2007-11-16 Delphi Technologies, Inc. Inyector de combustible.
DE602005005159T2 (de) 2005-01-19 2009-04-30 Delphi Technologies, Inc., Troy Kraftstoffeinspritzventil
DE102005024707A1 (de) * 2005-05-30 2006-12-07 Robert Bosch Gmbh Kraftstoffeinspritzdüse
DE102005054361A1 (de) * 2005-11-15 2007-05-24 Fev Motorentechnik Gmbh Hochdruckkraftstoffinjektor
EP1996812B1 (fr) * 2006-03-10 2012-05-16 Volvo Lastvagnar AB Système d'injection de carburant
EP1843038B1 (fr) * 2006-04-07 2009-03-18 Continental Automotive GmbH Injecteur de carburant avec corps à surfaces d'étanchéité coniques haute pression
DE102006031567A1 (de) * 2006-07-07 2008-01-10 Siemens Ag Einspritzsystem und Verfahren zum Herstellen eines Einspritzsystems
DE102007036571B3 (de) * 2007-08-03 2009-04-02 Continental Automotive Gmbh Injektor und Vorrichtung mit einem Gefäß und einem das Gefäß umschließenden Gehäuse
DE102012211233A1 (de) 2012-06-29 2014-01-02 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102012216688A1 (de) 2012-09-18 2014-03-20 Robert Bosch Gmbh Brennstoffeinspritzventil
CN103195627A (zh) * 2013-03-26 2013-07-10 哈尔滨工程大学 直接控制式压电喷油器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022166A (en) * 1975-04-03 1977-05-10 Teledyne Industries, Inc. Piezoelectric fuel injector valve
DE2710138A1 (de) 1977-03-09 1978-09-14 Maschf Augsburg Nuernberg Ag Mehrloch-einspritzduese
DE3533085A1 (de) * 1985-09-17 1987-03-26 Bosch Gmbh Robert Zumessventil zur dosierung von fluessigkeiten oder gasen
DE4228214A1 (de) * 1991-09-27 1993-04-01 Siemens Ag Linearhebel-wegtransformator fuer den piezoelektrischen aktor eines einlassventils
JP3846917B2 (ja) * 1995-07-13 2006-11-15 株式会社デンソー 燃料噴射装置
DE19642441A1 (de) * 1996-10-15 1998-04-16 Bosch Gmbh Robert Verfahren zum Betätigen eines Kraftstoffeinspritzventils für Brennkraftmaschinen
DE19857615C1 (de) * 1998-12-14 2000-07-13 Siemens Ag Hebelübersetzer
DE19940054C2 (de) * 1999-08-24 2003-11-27 Siemens Ag Dosierventil für ein unter Druck stehendes Fluid
DE19947196A1 (de) * 1999-10-01 2001-04-05 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE19952057A1 (de) * 1999-10-28 2001-05-03 Bosch Gmbh Robert Brennstoffeinspritzventil
US6279842B1 (en) * 2000-02-29 2001-08-28 Rodi Power Systems, Inc. Magnetostrictively actuated fuel injector
JP4079578B2 (ja) * 2000-06-22 2008-04-23 株式会社日本自動車部品総合研究所 燃料噴射装置
US6595436B2 (en) * 2001-05-08 2003-07-22 Cummins Engine Company, Inc. Proportional needle control injector

Also Published As

Publication number Publication date
DE10254186A1 (de) 2004-06-17
WO2004046540A1 (fr) 2004-06-03
EP1563182A1 (fr) 2005-08-17

Similar Documents

Publication Publication Date Title
EP1688611B1 (fr) Injecteur de carburant à commande de pointeau directe pour un moteur à combustion interne
EP1563182B1 (fr) Injecteur dote d'un pointeau a niveaux a entrainement direct pour l'injection de carburant dans un moteur a combustion interne
WO2006067015A1 (fr) Injecteur de systeme d'injection de carburant d'un moteur a combustion interne
EP1853813A1 (fr) Injecteur
EP1558843B1 (fr) Systeme d'injection de carburant pour moteurs a combustion interne
DE10353045A1 (de) Kraftstoffeinspritzventil
EP1682769A1 (fr) Injecteur de carburant dote d'un element de soupape d'injection en plusieurs parties, en commande directe
EP1637727B1 (fr) Soupape de contrôle pour un injecteur
DE102004042190B4 (de) Kraftstoffinjektor mit zwei von einer Servoventileinheit getrennt steuerbaren Steuerräumen
DE102005041994B4 (de) Kraftstoffinjektor mit direkt betätigbarem Einspritzventilglied und zweistufiger Übersetzung
DE102005037581A1 (de) Kraftstoffinjektor
EP1908953B1 (fr) Dispositif d'injection de carburant
WO2007098985A1 (fr) Soupape d'injection de carburant
DE102006036782B4 (de) Injektor
EP1325228B1 (fr) Soupape d'injection avec piston de pompe
WO2018082866A1 (fr) Injecteur de carburant pour injecter un carburant gazeux et/ou liquide
EP3035520B1 (fr) Unité de couplage hydraulique destinée à commander une soupape
EP1614892A1 (fr) Soupape d'injection de carburant avec une soupape à balle pour une servo valve à deux étapes
WO2006056521A1 (fr) Injecteur de carburant
DE102005025138B4 (de) Dosierventil
DE102005041993B4 (de) Kraftstoffinjektor mit direkt betätigbarem Einspritzventilglied und mit zweistufiger Übersetzung
DE10003252A1 (de) Einspritzdüse
DE102007014359A1 (de) Injektor für eine Kraftstoffeinspritzanlage
DE10305389A1 (de) Brennstoffeinspritzventil
WO2005035975A1 (fr) Injecteur a rampe commune commande en pression

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: 20050413

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 IT LI LU MC NL PT RO SE SI SK TR

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CONTINENTAL AUTOMOTIVE GMBH

17Q First examination report despatched

Effective date: 20100617

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): DE FR GB IT

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: DE

Ref legal event code: R096

Ref document number: 50314172

Country of ref document: DE

Effective date: 20120315

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

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120111

26N No opposition filed

Effective date: 20121012

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 50314172

Country of ref document: DE

Effective date: 20121012

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

Effective date: 20121120

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: 20121120

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 50314172

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50314172

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE

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

Ref country code: DE

Payment date: 20201130

Year of fee payment: 18

Ref country code: FR

Payment date: 20201120

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50314172

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: VITESCO TECHNOLOGIES GMBH, 30165 HANNOVER, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50314172

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: 20220601

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: 20211130