EP1481159B1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

Info

Publication number
EP1481159B1
EP1481159B1 EP02795038A EP02795038A EP1481159B1 EP 1481159 B1 EP1481159 B1 EP 1481159B1 EP 02795038 A EP02795038 A EP 02795038A EP 02795038 A EP02795038 A EP 02795038A EP 1481159 B1 EP1481159 B1 EP 1481159B1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
valve
injection valve
ground surface
closing body
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
EP02795038A
Other languages
German (de)
English (en)
Other versions
EP1481159A1 (fr
Inventor
Martin Mueller
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 EP1481159A1 publication Critical patent/EP1481159A1/fr
Application granted granted Critical
Publication of EP1481159B1 publication Critical patent/EP1481159B1/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
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for 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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—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
    • 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
    • F02M61/042—The valves being provided with fuel passages
    • 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
    • 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
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

Definitions

  • the invention relates to a fuel injection valve according to the preamble of the main claim.
  • an ignitable fuel / air mixture can be formed by injecting fuel into each combustion chamber delimited by a piston by releasing a nozzle orifice by lifting a valve member from a valve seat comprising the nozzle orifice.
  • the opening stroke of the valve member and the injection time are variably adjustable.
  • the Fuel injection device includes a fuel injection valve, which is arranged in the cylinder wall at a distance from the cylinder head and with respect to the outlet opening, and an outlet opening, wherein the beam axis of the fuel injection valve is directed to the region around the cylinder head arranged in the spark plug.
  • the fuel injection valve has a solenoid-operated valve needle with helical swirl grooves for generating a swirl flow of the injection jet.
  • the fuel injection valve is directed with its beam axis on the arranged in the cylinder head center ignition point.
  • a device for injecting fuel into the combustion chamber of a mixture-compression, spark-ignited internal combustion engine in which fuel is injected in a cone-shaped manner into the combustion chamber at a certain initial angle.
  • the injected fuel fills the combustion chamber in the form of a cone, wherein effects of wall wetting are largely suppressed.
  • a relatively flat formed piston spherically deforms the injected fuel cloud during the compression phase.
  • the spherical mixture cloud mixes only insignificantly with the supplied air and is passed on further compression to the spark gap of the spark plug.
  • combustion chamber geometries are difficult to produce; on the other hand, combustion can not be optimized with respect to the emission of nitrogen oxides and the consumption of fuel.
  • a fuel injector for an internal combustion engine which has a valve body accommodated in a housing, wherein the valve body comprises a valve seat surrounded by a valve opening.
  • a valve needle which is provided with a closing body, extends through the valve opening, so that the closing body cooperates with the valve seat to open and close the valve.
  • the valve needle is provided at its downstream end with a shoulder at which annular cylindrical guide surfaces and flattened surfaces are alternately formed around the outer circumferential surface thereof, which form outlet openings or gaps for the fuel stream. The exit gaps together form the narrowest flow passage of the injector, where the fuel flow is accelerated for proper atomization in the combustion chamber.
  • the fuel injector according to the invention with the characterizing features of the main claim has the advantage that the injected into the combustion chamber of the engine mixture cloud can be influenced by a corresponding shaping of the valve closing body of the fuel injector by a targeted throttling in front of the sealing seat so that the mixture cloud the spark plug only at the end reached the injection process.
  • the valve needle or the valve closing body in this case hasprofitnanschliffe, which throttle the flow of fuel depending on the radial depth ofassinanschliffe more or less, so that the fuel injection valve leaving mixture cloud depending on the stroke position of the valve needle has a larger or smaller opening angle ⁇ .
  • the throttling effect is adjustable either by recessed arranged legislativenanschliffe or via a raised guide ring.
  • Fig. 1 shows in an excerpt, schematic sectional view of an embodiment of a fuel injection system 1 for a mixture-compression spark-ignition internal combustion engine.
  • the fuel injection system 1 comprises a combustion chamber 2 which is delimited by cylinder walls 3, a cylinder head 4 which has ridge slopes 5, and a piston 6.
  • a spark plug 7 is z. B. arranged laterally projecting into the combustion chamber 2.
  • a fuel injection valve 10 according to the invention is arranged between the ridge bevels 5 in such a way that fuel is injected into the combustion chamber 2 in the form of, for example, a conical mixture cloud 8, 9.
  • the fuel injector 10 is inventively designed so that the prevailing fuel flow is throttled to varying degrees so that depending on the Hubbert a valve needle of the fuel injection valve 10, a mixture cloud 8, 9 can be generated with a variable opening angle ⁇ in the combustion chamber 2.
  • valve needle or a valve-closing body operatively connected therewith has at least one, preferably a plurality of surface contours or a guide ring for this purpose.
  • Illustrated by the inventive measure in Fig.1 can first be a mixture cloud 8 are generated in the combustion chamber 2, which has a large penetration and a small opening angle ⁇ , while the closing of the fuel injection valve 10 briefly the mixture cloud 9 is generated with a larger opening angle ⁇ , which touches the spark plug 7 in the electrodes and thus inflammable mixture transported to the spark gap of the spark plug 7.
  • FIG Fig. 2 An embodiment of a fuel injection valve 10 designed according to the invention, which is suitable for this operating mode, is shown in FIG Fig. 2 shown and described below.
  • Fig. 2 shows a schematic sectional view of an embodiment of an inventively designed fuel injector 10, which in particular for use in the in Fig. 1 illustrated fuel injection system 1 is suitable.
  • the fuel injection valve 10 is designed in the form of a direct-injection fuel injection valve 10, which serves for the direct injection of fuel into the combustion chamber 2 of the mixture-compressing, spark-ignited internal combustion engine. In the exemplary embodiment, this is an outwardly opening fuel injection valve 10.
  • the fuel injection valve 10 includes an actuator 11, which is formed in the present embodiment as a piezoelectric actuator 11.
  • the actuator 11 is encapsulated in an actuator housing 12 for stabilization and is supported at the end in the inlet direction at an abutment 13 and downstream on a shoulder 14 from.
  • the shoulder 14 is in frictional connection with a two-part valve needle 15.
  • An inflow-side first part 16 of the valve needle 15 is supported on the shoulder 14, while a second part 17 downstream of the first part 16 is arranged separately from this.
  • the first part 16 of the valve needle 15 is acted upon by a first return spring 18, which is arranged between the shoulder 14 and a sealing housing 19.
  • the second part 17 of the valve needle 15 is acted upon by a second return spring 20 whose spring force is lower than that of the first return spring 18, so that the second part 17 of the valve needle 15 can swing through relative to the first part 16.
  • the fuel injection valve 10 further comprises a corrugated tube seal 21 which protects the actuator 11 from the fuel flowing through the fuel injection valve 10.
  • the fuel is supplied via a central fuel supply 22 and flows through a fuel channel 23 in a housing body 24. It is thereby past the sealing housing 19 into a recess 25 of a nozzle body 26 inserted into the housing body 24, in which also the second part 17 the valve needle 15 is arranged, passed.
  • the second part 17 of the valve needle 15 has an integral with the valve needle 15 or in frictional connection with this standing valve closing body 27, which forms a sealing seat with a formed on the nozzle body 26 valve seat surface 28.
  • FIGS. 3A to 3B the measures according to the invention are in Fig. 4 shown in detail and explained in detail in the following description.
  • an exciter voltage is applied to the actuator 11, for example via an electrical line, not shown.
  • the first part 16 of the valve needle 15 is moved in a stroke direction.
  • the second part 17 of the valve needle 15 with the valve closing body 27 formed thereon is also moved counter to the force of the second return spring 20 in the stroke direction, so that the valve closing body 27 lifts from the valve seat surface 28 and fuel is sprayed.
  • the first part 16 of the valve needle 15 returns to its original position against the stroke direction by the force of the first return spring 18.
  • the second part 17 of the valve needle 15 is also relieved, as a result of which the valve closing body 27 rests again on the valve seat surface 28 and the fuel injection valve 10 is closed.
  • FIGS. 3A and 3B show a partial enlargement of the in Fig. 2 With III designated section of the fuel injection valve 10 in two different stroke positions of the valve needle 15. It provides Fig. 3A a stroke position, which corresponds for example to an open position of the fuel injection valve 10, while Fig. 3B shows a stroke position, which occurs at a lower stroke of the valve needle 15, for example when closing the fuel injection valve 10.
  • Matching components are provided in all figures with corresponding reference numerals.
  • the second part 17 of the valve needle 15 on the integrally formed with her valve closing body 27 or directly on the second part 17 of the valve needle 15 at least one clergynanschliff 29.
  • a plurality of clergynanschliffe 29 are regularly or irregularly distributed over the circumference of the valve closing body 27 formed on this.
  • the ceremoniesnanschliffe 29 are formed, for example, longitudinally oval and alternate with guide surfaces 30 which abut against a formed on the nozzle body 26 mating surface 31.
  • the guide surfaces 30 and the counter surface 31 guide the second part 17 of the valve needle 15 during the lifting movement. This malfunction of the fuel injection valve 10 can be prevented by offsets of the valve needle 15 with subsequent jamming.
  • the change in an opening angle ⁇ of the mixture cloud 8, 9 injected into the combustion chamber 2 is to be designed such that a mixture cloud 9 is produced at the end of the injection cycle whose opening angle ⁇ 2 is greater than the opening angle ⁇ 1 at the beginning of the injection cycle is.
  • the foundednanschliffe 29 on the valve closing body 27 are accordingly formed in their radial extent so that they define the width of a between the professionnanschliffen 29 and the mating surface 31 released throttle gap 32.
  • the width of the opening cross-section at the sealing seat in the fully open state of the fuel injection valve 10 is in any case greater than the width of the defined by the professionnanschliffe 29 throttle gap 32 so that the ceremoniesnanschliffe 29 serve as a choke.
  • the flow lamella formed in the narrow gap at the surface poles is thinner than the gap at the seal seat.
  • the fuel lamella can thereby flow with little deflection to the outside through the sealing seat.
  • the fuel lamella does not flow parallel to the walls through the sealing seat area, but obliquely directed downward.
  • the conical mixture cloud thus has a small opening angle.
  • valve closing body 27 When the valve closing body 27 is moved in a closing direction because the actuator 11 of the fuel injection valve 10 is supplied with a smaller excitation voltage, the distance of the valve closing body 27 from the valve seat surface 28 narrows. When the distance becomes smaller than the gap at the surfaces, the flow flows through the seat gap inevitably parallel to the walls. This forms a larger opening angle of the conical mixture cloud than in the first case.
  • Fig. 4 shows an embodiment of an inventively designed fuel injection valve 10 in the same representation as FIGS. 3A and 3B ,
  • the throttling function of the throttle gap 32 is independent of the tenunanschliffen 29th
  • a guide portion 33 is formed on the valve closing body, which defines a throttle gap 34, which is always the same distance over the circumference of the valve closing body 27.
  • the throttling effect and the subsequent widening of the opening angle ⁇ of the mixture cloud 8, 9 can be intensified, for example, by the activation of two discrete stroke positions via the actuator 11 or a slowing down of the closing operation of the fuel injection valve 10.
  • the invention is not limited to the illustrated embodiments and for any designs of fuel injectors 10 different arrangements of spark plugs 7 and fuel injectors 10 in the cylinder head 4 of an internal combustion engine and magnetic drive valve needle movement applicable.

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 (7)

  1. Soupape d'injection de carburant (10) pour moteurs à combustion interne comprenant un actionneur (11), qui est en liaison fonctionnelle avec un pointeau de soupape (15) guidé dans un corps de buse (26), et un corps de fermeture de soupape (27) en liaison par engagement par force avec le pointeau de soupape (15), qui forme un siège d'étanchéité avec une surface de siège de soupape (28) réalisée sur le corps de buse (26),
    le pointeau de soupape (15) et/ou le corps de fermeture de soupape (27) présentant au moins une surface biseautée (29) qui est réalisée sur la périphérie du pointeau de soupape (15) et/ou du corps de fermeture de soupape (27), et
    un interstice d'étranglement (32) étant réalisé entre l'au moins une surface biseautée (29) et une surface conjuguée (31) réalisée sur le corps de buse (26), dont la section transversale est inférieure à la section transversale d'ouverture sur le siège d'étanchéité dans l'état ouvert de la soupape d'injection de carburant (10),
    caractérisée en ce
    qu'une région de guidage (33) en forme de bague de guidage rehaussée est réalisée en aval de l'au moins une surface biseautée (29), et définit un interstice d'étranglement (34), la région de guidage (33) formant avec la surface conjuguée (31) un interstice d'étranglement (34) de largeur constante et la région de guidage (33) étant réalisée d'une seule pièce avec le corps de fermeture de soupape (27).
  2. Soupape d'injection de carburant selon la revendication 1,
    caractérisée en ce que
    l'au moins une surface biseautée (29) est prévue dans la région du guidage dans le corps de buse (26).
  3. Soupape d'injection de carburant selon la revendication 2,
    caractérisée en ce que
    plusieurs surfaces biseautées (29) sont prévues, lesquelles sont disposées à intervalles réguliers ou irréguliers sur la périphérie du corps de fermeture de soupape (27).
  4. Soupape d'injection de carburant selon la revendication 3,
    caractérisée en ce que
    des surfaces de guidage (30) sont réalisées entre les surfaces biseautées (29).
  5. Soupape d'injection de carburant selon la revendication 4,
    caractérisée en ce que
    les surfaces de guidage (30) coopèrent avec la surface conjuguée (31) réalisée sur le corps de buse (26) pour fournir un guidage du corps de fermeture de soupape (27).
  6. Soupape d'injection de carburant selon l'une quelconque des revendications 1 à 5,
    caractérisée en ce que
    l'effet d'étranglement des surfaces biseautées (29) dépasse l'effet d'étranglement sur le siège d'étanchéité dans l'état ouvert de la soupape d'injection de carburant (10).
  7. Soupape d'injection de carburant selon l'une quelconque des revendications 1 à 6,
    caractérisée en ce que
    la section transversale d'ouverture sur le siège d'étanchéité lors de la fermeture de la soupape d'injection de carburant (10) se rapproche de plus en plus de la section transversale de l'interstice d'étranglement (32) dans la région des surfaces biseautées (29).
EP02795038A 2002-02-26 2002-12-23 Soupape d'injection de carburant Expired - Lifetime EP1481159B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10208222 2002-02-26
DE10208222A DE10208222A1 (de) 2002-02-26 2002-02-26 Brennstoffeinspritzventil
PCT/DE2002/004730 WO2003072929A1 (fr) 2002-02-26 2002-12-23 Soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP1481159A1 EP1481159A1 (fr) 2004-12-01
EP1481159B1 true EP1481159B1 (fr) 2009-10-28

Family

ID=27762450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02795038A Expired - Lifetime EP1481159B1 (fr) 2002-02-26 2002-12-23 Soupape d'injection de carburant

Country Status (5)

Country Link
EP (1) EP1481159B1 (fr)
JP (1) JP4593927B2 (fr)
KR (1) KR100972523B1 (fr)
DE (2) DE10208222A1 (fr)
WO (1) WO2003072929A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2651925C1 (ru) * 2017-07-19 2018-04-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" Распылитель клапанной форсунки двигателя внутреннего сгорания и способ его сборки

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009138614A (ja) * 2007-12-05 2009-06-25 Mitsubishi Heavy Ind Ltd 蓄圧式燃料噴射装置の燃料噴射弁
ITNA20110032A1 (it) * 2011-07-29 2011-10-28 Antonio Potignano Polverizzatore del combustibile a fori e sezione d'iniezione variabile
ITNA20110035A1 (it) * 2011-08-09 2011-11-08 Antonio Potignano Polverizzatore del combustibile a fori e sezione d'iniezione variabile
EP2927473B1 (fr) * 2014-04-03 2017-09-20 Continental Automotive GmbH Soupape d'injection de carburant pour moteurs à combustion interne

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829688A (en) * 1996-01-13 1998-11-03 Robert Bosch Gmbh Injection valve for directly injecting fuel into an internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9008403D0 (en) * 1990-04-12 1990-06-13 Lucas Ind Plc Fuel injection nozzle
DE19623713B4 (de) * 1996-06-14 2008-06-19 Robert Bosch Gmbh Einspritzventil, insbesondere zum direkten Einspritzen von Kraftstoff in einen Brennraum eines Verbrennungsmotors
DE19633260A1 (de) * 1996-08-17 1998-02-19 Bosch Gmbh Robert Einspritzventil, insbesondere zum direkten Einspritzen von Kraftstoff in einen Brennraum eines Verbrennungsmotors
US20060155499A1 (en) * 2005-01-11 2006-07-13 Wei-Kuo Shih Method for calibration of digital image-captured devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829688A (en) * 1996-01-13 1998-11-03 Robert Bosch Gmbh Injection valve for directly injecting fuel into an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2651925C1 (ru) * 2017-07-19 2018-04-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" Распылитель клапанной форсунки двигателя внутреннего сгорания и способ его сборки

Also Published As

Publication number Publication date
DE50213972D1 (de) 2009-12-10
EP1481159A1 (fr) 2004-12-01
KR100972523B1 (ko) 2010-07-28
DE10208222A1 (de) 2003-10-30
WO2003072929A1 (fr) 2003-09-04
KR20040083459A (ko) 2004-10-01
JP4593927B2 (ja) 2010-12-08
JP2005518498A (ja) 2005-06-23

Similar Documents

Publication Publication Date Title
EP1045136B1 (fr) Procédé de fonctionnement d'un moteur à combustion interne à piston alternatif et buse d'injection pour la mise en oeuvre de ce procédé
EP0846225B1 (fr) Soupape d'injection, utile notamment pour injecter directement du carburant dans la chambre de combustion d'un moteur a combustion interne
EP1440239B1 (fr) Soupape d'injection de carburant
EP0975870B1 (fr) Soupape d'injection de carburant ou injecteur de carburant
EP2480783B1 (fr) Soupape d'injection de carburant pour un moteur à combustion interne
DE10012969B4 (de) Einspritzdüse und ein Verfahren zur Bildung eines Kraftstoff-Luftgemischs
DE10329524A1 (de) Selbstzündende Brennkraftmaschine
EP1119703B1 (fr) Soupape d'injection de carburant
DE10334347B4 (de) Kraftstoffeinspritzventil und Verbrennungsmotor mit Kraftstoffeinspritzventil
WO2002095201A1 (fr) Systeme d'injection de carburant
DE19812092A1 (de) Kraftstoffeinspritzeinrichtung und damit ausgerüsteter Verbrennungsmotor
EP1599669A1 (fr) Soupape d'injection de carburant
DE10210976A1 (de) Kraftstoffeinspritzventil für Brennkraftmaschinen
EP2521853B1 (fr) Soupape d'injection de combustible
DE602004001580T2 (de) Kraftstoffeinspritzventil für brennkraftmaschine
EP1290322B1 (fr) Systeme d'injection de carburant
DE10012970B4 (de) Verfahren zur Bildung eines zündfähigen Kraftstoff-Luftgemischs
EP1481159B1 (fr) Soupape d'injection de carburant
EP1312796B1 (fr) Soupape d'injection de combustible
DE102017218224A1 (de) Ventil zum Zumessen eines Fluids, insbesondere Brennstoffeinspritzventil
EP1137880B1 (fr) Procede de distribution dosee de carburant au moyen d'une soupape d'injection de carburant
EP1573192A1 (fr) Machine a combustion interne avec autoallumage
EP1702156B1 (fr) Soupape d'injection de carburant
DE102007013244A1 (de) Rotierende Einspritzstrahlen
EP1346149A1 (fr) Soupape d'injection de carburant

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: 20040927

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 IE IT LI LU MC NL PT SE SI SK TR

17Q First examination report despatched

Effective date: 20050803

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

REF Corresponds to:

Ref document number: 50213972

Country of ref document: DE

Date of ref document: 20091210

Kind code of ref document: P

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: 20100729

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

Ref country code: GB

Payment date: 20131217

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20131219

Year of fee payment: 12

Ref country code: FR

Payment date: 20131213

Year of fee payment: 12

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

Effective date: 20141223

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150831

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: 20141223

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: 20141231

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: 20141223

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

Ref country code: DE

Payment date: 20190221

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50213972

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: 20200701