EP0952333B1 - Injecteur à combustible pour systèmes d'injection de combustible - Google Patents

Injecteur à combustible pour systèmes d'injection de combustible Download PDF

Info

Publication number
EP0952333B1
EP0952333B1 EP99106924A EP99106924A EP0952333B1 EP 0952333 B1 EP0952333 B1 EP 0952333B1 EP 99106924 A EP99106924 A EP 99106924A EP 99106924 A EP99106924 A EP 99106924A EP 0952333 B1 EP0952333 B1 EP 0952333B1
Authority
EP
European Patent Office
Prior art keywords
piston
nozzle needle
pressure
working
piezo stack
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
EP99106924A
Other languages
German (de)
English (en)
Other versions
EP0952333A2 (fr
EP0952333A3 (fr
Inventor
Karl-Heinz Hoffmann
Heinz Öing
Gregor Dr. Renner
Reinhard Fischer
Günter Vogt
Jens-Peter Wobbe
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.)
Erphi-Electronic GmbH
P & S Prototypen und Sondermaschinen Entwicklu
Mercedes Benz Group AG
Original Assignee
P & S Prototypen und Sondermaschinen Entwicklungsgesellschaft Mbh
ERPHI ELECTRONIC GmbH
Erphi-Electronic GmbH
P & S Prototypen und Sondermas
P & S Prototypen und Sondermaschinen Entwicklungsgesellschaft Mbh
DaimlerChrysler AG
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 P & S Prototypen und Sondermaschinen Entwicklungsgesellschaft Mbh, ERPHI ELECTRONIC GmbH, Erphi-Electronic GmbH, P & S Prototypen und Sondermas, P & S Prototypen und Sondermaschinen Entwicklungsgesellschaft Mbh, DaimlerChrysler AG filed Critical P & S Prototypen und Sondermaschinen Entwicklungsgesellschaft Mbh
Publication of EP0952333A2 publication Critical patent/EP0952333A2/fr
Publication of EP0952333A3 publication Critical patent/EP0952333A3/fr
Application granted granted Critical
Publication of EP0952333B1 publication Critical patent/EP0952333B1/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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • 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
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic

Definitions

  • the invention relates to an injection valve for fuel injection systems after in the preamble of claim 1 closer defined type.
  • Generic injectors are known from EP-A-0 816,670 and from US-A-3,635,016.
  • the actuating force comes from the piezo stack, which actuates the nozzle needle.
  • the three pistons namely displacement piston, control piston and working pistons, the path is enlarged, so that a defined opening of the nozzle needle established.
  • the injection valve according to US-A-3 635 016 works in a similar way, with no control edges exist in the true sense, but only a translation of the area ratios.
  • DE 195 19 191 C2 describes an injection valve, being between a piezo stack and the nozzle needle of the Injector a hydraulic path-translation unit with a displacer and a Displacer piston downstream control piston arranged is.
  • the disadvantage here is that in the Distance translation the actuating force for the nozzle needle declining.
  • DE 195 00 706 A1 is a fuel injection valve for internal combustion engines, which has a hydraulic displacement amplifier for implementing a travel a piezoelectric actuator. at This valve are fluid-supplying and fluidabumblede Channels separated, the fluid through a channel disposed in the valve housing in a Annulus is performed.
  • a disadvantage of this injector is, however, that although the way reinforced at the same time, however, via the Leverage Act Operating force is reduced.
  • Another disadvantage is that the channel is the fuel injector during the delivery of fuel into the annulus subjected to a bending stress.
  • EP 0 218 895 B1 from which a metering valve for dosing of liquids or gases with a piezoelectric Actuator is known.
  • On the piezoelectric Actuator directly affects the pressure, with which the valve is acted upon.
  • pressures of 1000 bar At the in Fuel injection systems occurring pressures of 1000 bar is an exact function of the valve due to Stellwegsteren the valve needle not more guaranteed.
  • Another disadvantage is, that after lifting the valve needle from the valve seat the fuel through the resulting gap uncontrollable injected into the combustion chamber.
  • the present invention is based on the object an injection valve of the type mentioned above create, with which a fuel injection with high accuracy and precise and without loss of power through a way-translation is possible.
  • the path reinforcement according to the invention is of the force decoupled, because the force application for opening the nozzle needle only via the system pressure, e.g. one Rail pressure, done. Because you have no loss of power in the Translation gets, has the piezostack position too no negative influence on the opening of the nozzle needle.
  • a pressure piece is arranged, wherein between the pressure piece and the working piston a length compensation space with a Balancing spring is located.
  • the injection valve according to the invention is the same Working principle for both outward and after inside opening nozzle needles suitable.
  • the injection valve 1 shown in FIG has an injector 2, a piezoelectric guide 3, in which a piezo stack 4 is arranged, and with a the injector 2 by means of a union nut. 5 connected valve housing 6.
  • a valve closing device 7 is displaceable arranged in the valve housing 6.
  • the valve closing device 7 has a plunger 8 as a nozzle needle with a valve stem 9, in which the plunger 8 is fitted.
  • a sealing member in the form of a paragraph 10th intended.
  • the valve housing 6, the paragraph 10 and a separating device fixedly connected to the valve stem 9, which is designed as a pressure equalizing cylinder 11 is one filled with fuel during operation Annular gap 12. From the annular gap 12 is at open valve 1 a precisely metered amount of fuel in a combustion chamber, which is not shown in the drawing is, injected.
  • a flow restrictor is used for this purpose 13, which is provided with a spring device 14 to a cross-sectional area of the shoulder 10 of the valve stem 9 is pressed.
  • the spring device 14 is supported on a cylindrical stop 15.
  • annulus 16 is formed, in which a valve. 1 fuel supply line 17 opens. From here the fuel flows through holes 18 in the annular gap 12th
  • the piezo stack 4 is completely in the low pressure range of fuel-carrying channels and thus becomes not supplied by the very high pressure Fuel affected in its mode of action.
  • the Return flow of fuel takes place in this pressure range in a longitudinal groove 19, where it is at the of the Combustion chamber remote from the end of the piezo stack 4 from the Valve 1 exits.
  • the piezo stack 4 is supplied with a control voltage, so this causes in a known manner an elongation the piezo stack 4, whereby the valve closing device 7 opens, as between the paragraph 10 of the valve stem 9 and a valve seat 6 and the flow restrictor 13 a corresponding gap is formed.
  • the control voltage switched off, bringing the piezo stack 4 shortened accordingly back to its original length.
  • the provision of the nozzle needle 8 causes a Nozzle needle spring 51, located on a collar 55 of the Nozzle needle 8 is supported.
  • the piezo stack 4 is one with a Surrounding end cap provided protective tube 20.
  • the sealing cap of the protective tube 20 is in axial Direction between the piezo stack 4 and a Displacer 21 is arranged and thus actuates this at an elongation of the piezo stack 4.
  • a control piston 22 In axial Direction in front of the displacer 21 - based on the Combustion chamber - there is a control piston 22.
  • the Control piston 22 has a smaller effective pressure surface as the displacer 21.
  • the hydraulic Translation ratios arise from the different Geometries or diameter ratios of displacer 21 and spool 22.
  • a piezo stack bias is achieved.
  • the pressure compensation room 24 is with test oil or with fuel filled.
  • the filling or a pressure equalization takes place via targeted leaks between the control piston 22, the displacer 21 and the surrounding cylinder housing 25.
  • In the cylinder housing 25 opens an inlet 26, which is in communication with the inlet annulus 16. In this way, the cylinder housing 25 is axial and arranged against rotation.
  • annular groove 27 From the inlet 26 is via an annular groove 27 and an inclined bore 28 which is arranged in the control piston 22 are an annular space 29 with system pressure (Rail pressure) from the annulus 16 acted upon. Of the Annulus 29 is between the control piston 22 and a Sliding sleeve 30 formed.
  • the piezo stack 4 receives a control voltage, then in the direction of arrow B, the protective tube 20, the displacer 21 and the control piston 22 is shifted, wherein a pilot control edge 31 between the control piston 22 and the sliding sleeve 30 opens, bringing a high-pressure connection over the annular space 29 to a bore 32 is created in the sliding sleeve 30 and thus an associated working cylinder or working pressure chamber 33, the radially between the sliding sleeve 30th with a return control edge 36 and the cylinder housing 25 and axially between an end wall of the cylinder housing 25 and a working piston 34 is arranged is.
  • the working piston 34 By applying the working pressure chamber 33 with high pressure, the working piston 34 is wegtechnisch the control piston 22 is moved in the direction of arrow B. Due to the biasing spring 35, the sliding sleeve follows 30 the working piston 34 and seals with the return control edge 36 the pressure chamber 33 from. The sliding sleeve 30 follows the power piston 34 until they again to the pilot control edge 31 between the control piston 22 and the sliding sleeve 30 meets or these Control edge locks. This is the working pressure space 33 hydraulically tight and the working piston remains in this position. As can be seen, gives the displacer 21 the way for the from the displacer 21, the control piston 22, the sliding sleeve 30 and the working piston 34 existing follower before, the then reacted to the nozzle needle 8.
  • the protective tube 20 has the task of ensuring that the piezo stack 4 is not in contact with fuel comes.
  • a hydraulic length compensation of the piezo stack 4 is about the targeted leakage of the control piston 22nd and one on the outer diameter of the displacer 21st incorporated capillary reaches over the leakage in the return line or the longitudinal groove 19 passes.
  • the disc springs 23 provide ensure that the displacer 21 always on the Piezo stack 4 is applied and thus the piezo stack 4th is preloaded at the same time.
  • the mechanical performance of the piezo stack 4 is used exclusively for valve positioning. In other words, that means the Force amplification with the piezo stack 4 directly to nothing has to do. So it will not be the piezokraft for the Operation of the nozzle needle 8 used, but alone the pressure in the pressure chamber of the working cylinder 33 is applied, and this pressure is proportional the power.
  • FIGS. 3 and 4 show an injection valve, in which the nozzle needle 8 'for injecting Fuel opens inward. This means the direction of actuation of the piezo stack 4 'is the reverse of Actuation direction of the nozzle needle 8 '.
  • Fig. 1 In contrast to the embodiment of the Fig. 1 is not a loop for supplying rail pressure 16 provided, but a stub 43. For the return of fuel is a leakage line 44 intended.
  • the piezo bias can again in the Pressure equalization chamber 24 'by plates, or coil springs 23 ', are set. In this injection valve system yes, a way reversal must take place, if the Piezo stack 4 'is pressed. In this case, the Room in which a spring 56 is located, only one Vent space.
  • the pressure compensation chamber 24 ' is compressed at a control voltage 4 '. Above this, a pressure acts in the pressure compensation chamber 24 ' Diameter difference.
  • the fuel supply for the pressure compensation chamber 24 ' takes place via a connecting channel 54 in the Control piston 22 'to the inlet 26 via a collar in the Control piston 22 '.

Landscapes

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

Claims (5)

  1. Soupape d'injection pour des systèmes d'injection de carburant, comportant un boítier d'injecteur (2), dans lequel est disposé un bloc piézoélectrique (4), et un boítier de soupape (6), qui est relié au boítier (2) de l'injecteur et dans lequel est monté de manière à être déplaçable un dispositif (7) de fermeture de soupape, qui est pourvu d'une aiguille d'injecteur (8), et qui peut être actionné par le bloc piézoélectrique (4), et dans laquelle il est prévu un dispositif de rappel, au moyen duquel le dispositif (7) de fermeture de soupape peut être rétracté, et dans laquelle entre le bloc piézoélectrique (4) et l'aiguille d'injecteur (8) du dispositif (7) de fermeture de soupape est disposé un piston de commande (22), sont disposé un piston de refoulement (21), actionné par le bloc piézoélectrique (4), et un piston de commande (22), qui est branché en aval du piston de refoulement (21) et augmente la course de réglage, et dans laquelle pour une amplification séquentielle hydraulique il est prévu un piston de travail (34), qui actionne l'aiguille d'injecteur (8) et augmente la force d'actionnement,
    caractérisée en ce qu'entre le piston de commande (22) et le piston de travail (34) est prévue une douille coulissante (30), sur laquelle sont prévus une arête de commande avant (31) et une arête de commande arrière (36) servant à établir la pression et supprimer la pression dans une chambre de travail d'un cylindre de travail (33), disposée entre le piston de commande (22) et le piston de travail (34).
  2. Soupape d'injection selon la revendication 1,
    caractérisée en ce que pour une compensation hydraulique de longueur pour l'aiguille d'injecteur (8) l'organe de pression (42) est disposé entre l'aiguille d'injecteur (8) et le piston de travail (34), une chambre de compensation de longueur (39) comportant un ressort de compensation (40) étant disposée entre l'organe de pression (42) et le piston de travail (34).
  3. Soupape d'injection selon l'une des revendications 1 ou 2, caractérisée en ce que dans le cas d'une aiguille d'injecteur (8) qui s'ouvre vers l'intérieur à l'opposé de l'actionnement piézoélectrique, l'inversion de marche se produit entre le piston de refoulement (21) et le piston de commande (22).
  4. Soupape d'injection selon l'une des revendications 1 à 3, caractérisée en ce que le bloc piézoélectrique (4) est entouré par un guide piézoélectrique (3).
  5. Soupape d'injection selon la revendication 4,
    caractérisée en ce qu'entre le guide piézoélectrique (3) et le boítier (2) de l'injecteur est formée une chambre annulaire (16), dans laquelle débouche une canalisation (17) d'amenée du carburant.
EP99106924A 1998-04-18 1999-04-08 Injecteur à combustible pour systèmes d'injection de combustible Expired - Lifetime EP0952333B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19817320 1998-04-18
DE19817320A DE19817320C1 (de) 1998-04-18 1998-04-18 Einspritzventil für Kraftstoffeinspritzsysteme

Publications (3)

Publication Number Publication Date
EP0952333A2 EP0952333A2 (fr) 1999-10-27
EP0952333A3 EP0952333A3 (fr) 2002-02-13
EP0952333B1 true EP0952333B1 (fr) 2004-06-23

Family

ID=7865016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106924A Expired - Lifetime EP0952333B1 (fr) 1998-04-18 1999-04-08 Injecteur à combustible pour systèmes d'injection de combustible

Country Status (3)

Country Link
US (1) US6302333B1 (fr)
EP (1) EP0952333B1 (fr)
DE (2) DE19817320C1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19953562A1 (de) * 1999-11-08 2001-05-23 Bosch Gmbh Robert Kraftstoff-Einspritzdüse
DE10000575A1 (de) * 2000-01-10 2001-07-19 Bosch Gmbh Robert Einspritzdüse
DE10006319A1 (de) * 2000-02-12 2001-08-16 Daimler Chrysler Ag Einspritzventil
EP1174615B1 (fr) 2000-07-18 2007-01-31 Delphi Technologies, Inc. Injecteur de combustible
DE10112147A1 (de) * 2001-03-14 2002-09-19 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
ITBO20010279A1 (it) * 2001-05-08 2002-11-08 Magneti Marelli Spa Iniettore di carburante con attuatore piezoelettrico alloggiato in una camera isolata
DE10133265A1 (de) * 2001-07-09 2003-01-23 Bosch Gmbh Robert Brennstoffeinspritzventil
US6766965B2 (en) * 2001-08-31 2004-07-27 Siemens Automotive Corporation Twin tube hydraulic compensator for a fuel injector
US6792921B2 (en) * 2001-12-17 2004-09-21 Caterpillar Inc Electronically-controlled fuel injector
US6983894B2 (en) 2002-02-13 2006-01-10 Siemens Vdo Automotive Inc. Piezo-electrically actuated canister purge valve with a hydraulic amplifier
EP1391607A1 (fr) * 2002-08-20 2004-02-25 Siemens VDO Automotive S.p.A. Doseur
US6811093B2 (en) * 2002-10-17 2004-11-02 Tecumseh Products Company Piezoelectric actuated fuel injectors
DE10310790A1 (de) * 2003-03-12 2004-09-23 Robert Bosch Gmbh Brennstoffeinspritzventil
DE102004027824A1 (de) 2004-06-08 2006-01-05 Robert Bosch Gmbh Kraftstoffinjektor mit variabler Aktorübersetzung
DE102004035280A1 (de) * 2004-07-21 2006-03-16 Robert Bosch Gmbh Kraftstoffinjektor mit direkter mehrstufiger Einspritzventilgliedansteuerung
DE102005008972A1 (de) * 2005-02-28 2006-08-31 Robert Bosch Gmbh Einspritzdüse
US7307371B2 (en) * 2005-11-18 2007-12-11 Delphi Technologies, Inc. Actuator with amplified stroke length
US7628139B2 (en) * 2006-07-11 2009-12-08 Detroit Diesel Corporation Fuel injector with dual piezo-electric actuator
US7658179B2 (en) * 2008-05-28 2010-02-09 Caterpillar Inc. Fluid leak limiter
US7661410B1 (en) 2008-08-18 2010-02-16 Caterpillar Inc. Fluid leak limiter
DE102012212264B4 (de) 2012-07-13 2014-02-13 Continental Automotive Gmbh Verfahren zum Herstellen eines Festkörperaktuators
DE102012212266B4 (de) * 2012-07-13 2015-01-22 Continental Automotive Gmbh Fluidinjektor
DE102014009025B4 (de) * 2014-06-24 2016-02-18 Airbus Ds Gmbh Biegerahmen zur Velängerung des Stellwegs eines Aktors für ein mechanisch betätigtes Bauteil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501099A (en) * 1967-09-27 1970-03-17 Physics Int Co Electromechanical actuator having an active element of electroexpansive material
DE3533085A1 (de) * 1985-09-17 1987-03-26 Bosch Gmbh Robert Zumessventil zur dosierung von fluessigkeiten oder gasen
DE4311627B4 (de) * 1993-04-08 2005-08-25 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
DE19500706C2 (de) * 1995-01-12 2003-09-25 Bosch Gmbh Robert Zumeßventil zur Dosierung von Flüssigkeiten oder Gasen
DE19519191C2 (de) * 1995-05-24 1997-04-10 Siemens Ag Einspritzventil
US5779149A (en) * 1996-07-02 1998-07-14 Siemens Automotive Corporation Piezoelectric controlled common rail injector with hydraulic amplification of piezoelectric stroke
DE19701288C2 (de) * 1997-01-16 1999-10-14 Daimler Benz Ag Ventil zur dosierten Abgabe von Fluiden

Also Published As

Publication number Publication date
DE19817320C1 (de) 1999-11-11
US6302333B1 (en) 2001-10-16
DE59909783D1 (de) 2004-07-29
EP0952333A2 (fr) 1999-10-27
EP0952333A3 (fr) 2002-02-13

Similar Documents

Publication Publication Date Title
EP0952333B1 (fr) Injecteur à combustible pour systèmes d'injection de combustible
DE2500644C2 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
EP0909891B1 (fr) Vanne de commande de fluide
EP0960274B1 (fr) Dispositif d'injection de carburant pour moteurs a combustion interne
DE102008000985B4 (de) Injektor
DE19946827C1 (de) Ventil zum Steuern von Flüssigkeiten
EP1144857B1 (fr) Soupape de distribution a double commutation comprenant un renforcement hydraulique de l'actionneur
EP1269008B1 (fr) Soupape d'injection a etranglement de derivation
EP2735725B1 (fr) Soupape d'injection de carburant pour moteurs à combustion interne
EP1379775A1 (fr) Soupape pour commander le passage de fluides
DE4320620B4 (de) Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
EP1952011B1 (fr) Dispositif d'injection de carburant pour moteur a combustion interne a injection directe de carburant
EP0941401B1 (fr) Soupape de commande de liquides
DE102006009659A1 (de) Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine mit Kraftstoff-Direkteinspritzung
EP1692392B1 (fr) Injecteur de carburant a commande de pointeau directe
WO2007141094A1 (fr) Dispositif d'injection de carburant pour un moteur à combustion interne
EP0999360A1 (fr) Soupape de commande de dosage de fluide
EP2458194B1 (fr) Soupape d'injection de carburant pour moteurs à combustion interne
DE102009045995A1 (de) Kraftstoffeinspritzvorrichtung
DE10353641B4 (de) Brennstoffeinspritzventil
DE10357873A1 (de) Einspritzventil
DE19923422C2 (de) Elektronisches Einspritzsystem
DE102005023179B3 (de) Einspritzventil mit einem erhöhten Druck im Ablaufraum
EP3184801A1 (fr) Dispositif de couplage hydraulique et injecteur de carburant avec un tel dispositif
DE10050599B4 (de) Einspritzventil mit einem Pumpkolben

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

Kind code of ref document: A2

Designated state(s): DE FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020119

AKX Designation fees paid

Free format text: DE FR GB IT

17Q First examination report despatched

Effective date: 20021204

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

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: P & S PROTOTYPEN UND SONDERMASCHINEN ENTWICKLU

Owner name: ERPHI-ELECTRONIC GMBH

Owner name: DAIMLERCHRYSLER AG

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

Owner name: P & S PROTOTYPEN UND SONDERMASCHINEN ENTWICKLU

Owner name: ERPHI-ELECTRONIC GMBH

Owner name: DAIMLERCHRYSLER AG

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: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59909783

Country of ref document: DE

Date of ref document: 20040729

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040722

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
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: 20050324

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

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

Ref country code: IT

Payment date: 20090427

Year of fee payment: 11

Ref country code: FR

Payment date: 20090414

Year of fee payment: 11

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

Ref country code: GB

Payment date: 20090421

Year of fee payment: 11

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

Effective date: 20100408

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101230

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: 20100408

Ref country code: GB

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

Effective date: 20100408

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: 20100430

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

Ref country code: DE

Payment date: 20180627

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59909783

Country of ref document: DE