EP1198672A1 - Soupape d'injection de carburant pour moteurs a combustion interne - Google Patents

Soupape d'injection de carburant pour moteurs a combustion interne

Info

Publication number
EP1198672A1
EP1198672A1 EP01953120A EP01953120A EP1198672A1 EP 1198672 A1 EP1198672 A1 EP 1198672A1 EP 01953120 A EP01953120 A EP 01953120A EP 01953120 A EP01953120 A EP 01953120A EP 1198672 A1 EP1198672 A1 EP 1198672A1
Authority
EP
European Patent Office
Prior art keywords
valve member
valve
fuel injection
conical surface
annular groove
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.)
Granted
Application number
EP01953120A
Other languages
German (de)
English (en)
Other versions
EP1198672B1 (fr
Inventor
Rainer Haeberer
Markus Ohnmacht
Wilhelm Christ
Ralf Maier
Stefan Haug
Wolfgang Fleiner
Markus Rueckle
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 EP1198672A1 publication Critical patent/EP1198672A1/fr
Application granted granted Critical
Publication of EP1198672B1 publication Critical patent/EP1198672B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • 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
    • F02M61/1873—Valve seats or member ends having circumferential grooves or ridges, e.g. toroidal
    • 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
    • F02M61/047—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 being formed by deformable nozzle parts, e.g. flexible plates or discs with fuel 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped

Definitions

  • the invention is based on a fuel injection valve for internal combustion engines, preferably self-igniting internal combustion engines, according to the preamble of claim 1.
  • a fuel injection valve for internal combustion engines, preferably self-igniting internal combustion engines, according to the preamble of claim 1.
  • Such a fuel injection valve is known from the published patent application WO 96/19661.
  • a blind bore is formed in a valve body, in which a valve member is guided.
  • the valve member is surrounded on its combustion chamber-side section by a pressure chamber which can be filled with fuel under high pressure.
  • a conical valve seat is formed on the bottom surface of the blind bore facing the combustion chamber.
  • at least one injection opening is arranged on the bottom surface, which connects the bore to the combustion chamber.
  • valve member comes into contact with the valve member tip on the valve seat in the closed position and thus closes the injection openings against the pressure chamber.
  • valve member tip two conical surfaces are arranged, at the transition of which a circumferential annular groove is formed which defines the effective seat diameter of the valve member and has the effect that the opening pressure of the fuel in the pressure chamber does not change during operation. This results in a constant, reproducible injection quantity and thus optimal combustion, as long as the valve member is precisely centered in the bore.
  • valve member If the valve member is not covered, the fuel feed from the pressure chamber past the conical surfaces of the valve member tip and the sealing edge to the injection openings is no longer symmetrical.
  • the injection orifices, towards which the valve member is not aligned, are opened by the valve at the start of the member covered so that little or no fuel can flow to them. Only in the course of the complete opening stroke movement of the valve member are the initially concealed injection openings released, and only now can the fuel also flow through these injection openings. As a result, there is a reduction in the total amount of fuel injected and thus a loss of performance of the internal combustion engine.
  • the fuel injection valve according to the invention with the characterizing features of claim 1 has the advantage that in the area of the injection openings on the second conical surface of the valve member tip, a further circumferential annular groove is formed, which already flows to the fuel flowing from the pressure chamber to the injection openings at the beginning of the opening stroke movement to all Injection openings distributed. If, during the opening stroke movement, the valve member is axis-oriented towards an injection opening, part of the fuel flowing to the other injection openings is diverted into a tangential flow through the additional annular groove and thus flows to this injection opening. In this way, a sufficient inflow of fuel to all the injection openings is ensured, and there is a symmetrical injection through all the injection openings, and those mentioned above, even when the valve element is misaligned Disadvantages of uneven injection are avoided.
  • longitudinal grooves are formed in the conical surface between the annular groove and the additional annular groove. With these longitudinal grooves, the fuel is distributed more evenly and quickly across all injection openings when the valve element is not aligned.
  • the longitudinal grooves are inclined to the surface lines of the conical surface arranged between the annular groove and the additional annular groove. This results in a tangential fuel flow in the additional annular groove around the valve member in the area of the injection openings, which additionally supports a uniform distribution of the fuel over the injection openings.
  • FIG. 1 shows a fuel injection valve in partial longitudinal section
  • FIG. 2 shows an enlarged illustration of FIG. 1 in the region of the valve seat
  • FIGS. 3, 4, 5 and 6 show the same detail as FIG. 2 of further exemplary embodiments.
  • a bore 3 is arranged, which is designed as a blind bore and the closed end of which faces the combustion chamber.
  • the closing force can also be generated hydraulically, for example, in which an actuating element acts hydraulically, at least indirectly, on the valve member 5 and acts on it in the closed position.
  • the opening stroke movement of the valve member 5 is initiated in that the fuel pressure in the pressure chamber 19 increases due to the supply of fuel from the inlet channel 25. This increases the hydraulic force on the pressure shoulder 13 and on the part of the valve member tip 7 which is acted upon by the fuel and which causes a resultant force on the valve member 5 in the axial direction. If this resulting force exceeds the closing force, the valve member 5 lifts off the valve seat 9 and fuel can flow from the pressure chamber 19 past the valve member tip 7 to the injection openings 11 and from there into the combustion chamber. If the fuel pressure in the pressure chamber 19 drops again, so that the resulting force becomes less than the closing force, the valve member 5 moves towards the valve seat 9 until it comes to rest there, closes the injection openings 11 and ends the fuel injection.
  • the fuel injection valve is shown enlarged in the valve member tip 7 in the closed position of the valve member 5.
  • the valve seat 9 is a conical surface with a cone angle ⁇ , which is preferably 50 to 70 degrees. At the end on the combustion chamber side, the valve seat 9 merges into a bulge 48 for manufacturing reasons.
  • At least one injection opening 11 is formed in the valve seat 9, which extends perpendicular to the valve sealing surface 9 or also inclined to it. If a plurality of injection openings 11 are provided, these are preferably uniform in accordance with the combustion chamber of the internal combustion engine to be supplied distributed over the circumference of the valve body 1.
  • the injection openings 11 can, for example, lie in a common radial plane to the axis of the valve member 5, be distributed over a plurality of radial planes or lie in a plane inclined to the axis of the valve member 5.
  • the valve member stem 205 merges into the valve member tip 7 at its end on the combustion chamber side, forming an intermediate cone surface 28. It can also be provided that the intermediate cone surface 28 is omitted and the diameter of the valve member stem 205 corresponds to that of the base area of the valve member tip 7.
  • a first cone surface 30 is formed on the valve member tip 7, which adjoins the valve member shaft 205 and has a cone angle ⁇ that is smaller than the cone angle ⁇ of the valve seat 9. Facing the combustion chamber, the first conical surface 30 is adjoined by a second conical surface 32 which has a conical angle ⁇ which is greater than the conical angle ⁇ of the valve seat 9.
  • a difference angle ⁇ x is thus formed between the first cone surface 30 and the valve seat 9 and a difference angle ⁇ 2 between the second cone surface 32 and the valve seat 9.
  • the difference angles ⁇ 1 , ⁇ 2 are preferably less than 1.5 degrees.
  • the valve member 5 is flattened to form an end face 52, which is arranged inside the bulge 48 in the closed position of the valve member 5.
  • first groove edge 38 which is upstream with respect to the fuel flow to the injection openings, lies on the first cone surface 30, while the second, downstream groove edge 39 lies on the second cone surface 32.
  • first groove edge 38 comes in the closed position of the valve member 5 on the valve seat 9 to the system and seals the injection openings 11 to the pressure chamber 19.
  • the second groove edge 39 Due to the closing force on the valve member 5 and the associated elastic deformation of the first groove edge 38 and the preferably small difference angle ⁇ 1; ⁇ 2 , the second groove edge 39 also comes into contact with the valve seat 9 in the closed position of the valve member 5. This increases the contact surface and the surface pressures on the valve seat 9 are reduced.
  • An additional annular groove 42 is formed on the second cone surface 32. It is arranged so that it covers the injection openings 11 in the closed position of the valve member 5.
  • the additional annular groove 42 has a cross section which is preferably greater than or equal to the cross section of an injection opening 11 in order to enable an unthrottled fuel flow in the tangential direction in the additional annular groove 42 to the injection openings 11.
  • the cross-sectional shape can be in the form of a circular arc or can also have any other shape, for example a polygon or an elliptical arc shape.
  • the additional annular groove 42 is also arranged in such a radial plane. If, on the other hand, the injection openings 11 are arranged in a plane inclined to the radial plane, the additional annular groove 42 can also run accordingly in an inclined plane in order to cover all the injection openings 11 in the closed position.
  • the operation of the additional annular groove 42 is as follows: If the valve member 5 lifts off from the valve seat 9 by the hydraulic force, it may happen that the valve member 5 is decachated to an injection opening 11 with respect to the axis of the bore 3 on the valve seat 9. The fuel flow from the pressure chamber 19 to this injection opening 11 is then only possible to a limited extent, while the remaining Chen injection ports 11 are supplied with fuel by fuel flow past the valve member tip 7.
  • part of the fuel is diverted into a tangential flow through the additional annular groove 42, so that the injection opening 11, to which the valve member 5 is too unsachected, receives sufficient fuel from the beginning of the opening stroke movement.
  • valve member 5 with the valve member tip 7 lifts off from the valve seat 9 to such an extent that a desaching is no longer significant and a fuel flow along the generatrices of the valve member tip 7 to the injection openings 11 is possible.
  • This effect of the additional annular groove 42 ensures a uniform fuel injection at the start of the opening stroke movement, as a result of which the fuel injection can be reproduced and optimally coordinated with the operating state of the internal combustion engine.
  • FIG. 3 shows a further exemplary embodiment of the fuel injection valve according to the invention.
  • the structure corresponds exactly to that shown in FIG. 2, but here longitudinal grooves 55 are arranged on the conical surface formed between the annular groove 35 and the additional annular groove 42, which connect the two annular grooves 35, 42 to one another.
  • the longitudinal grooves 55 run along surface lines of the conical surface formed between the ring grooves 35, 42.
  • These longitudinal grooves 55 provide a good inflow of fuel into the additional annular groove 42, in particular when the injection valve is only slightly open at the beginning of the opening stroke movement. If provision is made to arrange a plurality of longitudinal grooves 55 on the valve member tip 7, these are preferably distributed uniformly over the circumference of the valve member tip 7.
  • one or more longitudinal grooves 55 to the surface lines between the Form annular grooves 35,42 inclined conical surface.
  • the fuel flowing through the longitudinal grooves 55 into the additional annular groove 42 is given a tangential speed component and is rapidly distributed over all injection openings 11.
  • FIG. 4 shows a further exemplary embodiment of a fuel injection valve according to the invention.
  • the first edge 38 of the additional annular groove 42 lies in the closed position of the valve member 5 on the injection openings 11, so that the conical surface lying between the annular grooves 35, 42 partially covers the injection openings 11.
  • FIG. 6 shows a fuel injection valve according to the invention, in which the additional annular groove 42 is significantly wider than the diameter of the injection openings 11 and fully covers the injection openings 11 when the valve member 5 is in the closed position. This makes it possible to cover a plurality of injection openings 11, which are not all on the same radial plane with respect to the longitudinal axis 50 of the valve member 5, but are still covered by the additional annular groove 42 in the closed position of the valve member 5.

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 une soupape d'injection de carburant comprenant un corps de soupape (1) et un alésage (3) borgne, dont la surface de fond est tournée vers la chambre de combustion. Sur la surface de fond est formé un siège de soupape (9) conique comportant au moins une ouverture d'injection (11). Dans l'alésage (3) est placé un obturateur (5) en forme de piston, qui peut se déplacer dans le sens longitudinal, à l'encontre d'une force de fermeture, et présente une pointe d'obturateur (7) qui, lorsque l'obturateur (5) est en position de fermeture, repose sur le siège de soupape (9). Sur la pointe d'obturateur (7) sont formées une première face de cône (30) et une seconde face de cône (32), située côté chambre de combustion, par rapport à la première face de cône, l'angle de cône (α) de la première phase de cône (30) étant plus petit que l'angle de cône (η) du siège de soupape (9), ce dernier angle de cône étant lui-même plus petit que l'angle de cône (β) de la seconde face de cône (32). Entre la première face de cône (30) et la seconde face de cône (32) est formée une rainure annulaire (35), et une autre rainure annulaire (42) circonférentielle complémentaire se trouve sur la seconde face de cône (32), cette dernière rainure annulaire se recouvrant, lorsque l'obturateur (5) est en position de fermeture, au moins partiellement avec les ouvertures d'injection (11), cela pour que toutes les ouvertures d'injection (11) soient alimentées uniformément en carburant même lorsque l'obturateur (5) est désaxé.
EP01953120A 2000-06-27 2001-06-27 Soupape d'injection de carburant pour moteurs a combustion interne Expired - Lifetime EP1198672B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10031264 2000-06-27
DE10031264A DE10031264A1 (de) 2000-06-27 2000-06-27 Kraftstoffeinspritzventil für Brennkraftmaschinen
PCT/DE2001/002371 WO2002001066A1 (fr) 2000-06-27 2001-06-27 Soupape d'injection de carburant pour moteurs a combustion interne

Publications (2)

Publication Number Publication Date
EP1198672A1 true EP1198672A1 (fr) 2002-04-24
EP1198672B1 EP1198672B1 (fr) 2003-09-17

Family

ID=7646963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01953120A Expired - Lifetime EP1198672B1 (fr) 2000-06-27 2001-06-27 Soupape d'injection de carburant pour moteurs a combustion interne

Country Status (9)

Country Link
US (1) US6892965B2 (fr)
EP (1) EP1198672B1 (fr)
JP (1) JP2004502075A (fr)
KR (1) KR100772851B1 (fr)
CN (1) CN1262758C (fr)
BR (1) BR0106899A (fr)
DE (2) DE10031264A1 (fr)
PL (1) PL352634A1 (fr)
WO (1) WO2002001066A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004036026A1 (fr) * 2002-10-15 2004-04-29 Robert Bosch Gmbh Dispositif d'injection de carburant d'un moteur a combustion interne
WO2006040288A1 (fr) * 2004-10-14 2006-04-20 Robert Bosch Gmbh Soupape d'injection de carburant pour moteurs a combustion
WO2006092344A1 (fr) * 2005-03-01 2006-09-08 Robert Bosch Gmbh Injecteur de carburant comprenant un element de soupape d'injection a commande directe qui presente un double siege

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122503A1 (de) * 2001-05-10 2002-11-21 Bosch Gmbh Robert Ventil mit radialen Ausnehmungen
DE10240827A1 (de) 2002-09-04 2004-03-18 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschine
DE10242685A1 (de) * 2002-09-13 2004-03-25 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10245573A1 (de) * 2002-09-27 2004-04-08 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10246693A1 (de) * 2002-10-07 2004-04-15 Siemens Ag Einspritzvorrichtung zum Einspritzen von Kraftstoff
JP2006505745A (ja) * 2002-11-11 2006-02-16 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 内燃機関のための燃料噴射弁
DE10253721A1 (de) * 2002-11-19 2004-06-03 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10260975A1 (de) * 2002-12-24 2004-07-08 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
DE10304135A1 (de) * 2003-02-03 2004-08-05 Robert Bosch Gmbh Einspritzdüse
DE10305303A1 (de) * 2003-02-10 2004-08-19 Robert Bosch Gmbh Kraftstoff-Einspritzvorrichtung, insbesondere für Brennkraftmaschinen mit Kraftstoff-Direkteinspritzung
JP2004308603A (ja) * 2003-04-09 2004-11-04 Denso Corp 流体噴射弁
EP1496246A1 (fr) * 2003-07-07 2005-01-12 Delphi Technologies, Inc. Buse d'injection
ATE400736T1 (de) * 2003-07-15 2008-07-15 Delphi Tech Inc Einspritzventil
ATE325271T1 (de) * 2003-10-06 2006-06-15 Delphi Tech Inc Einspritzdüse
DE10351680A1 (de) * 2003-11-05 2005-06-09 Robert Bosch Gmbh Ventil für eine Kraftstoffeinspritzpumpe
DE10353683A1 (de) * 2003-11-17 2005-06-16 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
US7329791B2 (en) * 2004-03-31 2008-02-12 Uchicago Argonne, Llc Hydrogen transport membranes for dehydrogenation reactions
TR200402050A2 (tr) * 2004-08-18 2006-03-21 Robert Bosch Gmbh Eşeksenli alansal temaslı çift oturma çaplı enjektör
JP3989495B2 (ja) * 2004-09-22 2007-10-10 トヨタ自動車株式会社 燃料噴射装置
DE102005008894A1 (de) * 2005-02-26 2006-08-31 Audi Ag Einspritzdüse
DE102005025135A1 (de) * 2005-06-01 2006-12-07 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
US7578450B2 (en) * 2005-08-25 2009-08-25 Caterpillar Inc. Fuel injector with grooved check member
US7360722B2 (en) * 2005-08-25 2008-04-22 Caterpillar Inc. Fuel injector with grooved check member
US20070200011A1 (en) * 2006-02-28 2007-08-30 Caterpillar Inc. Fuel injector having nozzle member with annular groove
EP1999409B1 (fr) * 2006-03-30 2018-05-02 Ansaldo Energia IP UK Limited Système de brûleur
EP2071178A1 (fr) * 2007-12-10 2009-06-17 Delphi Technologies, Inc. Buse à injection
DE102008031271B4 (de) * 2008-07-02 2011-07-28 Continental Automotive GmbH, 30165 Düsenbaugruppe für ein Einspritzventil
DE102009029542A1 (de) 2009-08-28 2011-03-03 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102009042155A1 (de) * 2009-09-21 2011-04-07 Continental Automotive Gmbh Kraftstoff-Einspritzventil für eine Brennkraftmaschine
EP2369166B1 (fr) * 2010-03-22 2017-12-13 Delphi International Operations Luxembourg S.à r.l. Buse à injection
JP5563391B2 (ja) * 2010-07-05 2014-07-30 株式会社日本自動車部品総合研究所 電磁弁
CN102003320A (zh) * 2010-12-17 2011-04-06 无锡威孚长安有限责任公司 喷油嘴偶件
JP5708342B2 (ja) * 2011-07-22 2015-04-30 株式会社デンソー 弁装置およびそれを用いた流体制御弁
JP5949908B2 (ja) * 2012-05-11 2016-07-13 トヨタ自動車株式会社 燃料噴射弁及びこれを備えた燃料噴射装置
DE102012218016A1 (de) * 2012-10-02 2014-04-03 Continental Automotive Gmbh Düsenbaugruppe für ein Einspritzventil und Einspritzventil
JP5983535B2 (ja) * 2013-05-22 2016-08-31 トヨタ自動車株式会社 燃料噴射弁
DE102014205436A1 (de) * 2014-03-24 2015-09-24 Zf Friedrichshafen Ag Sitzventil mit einem kegelförmigen Schließkörper
JP6354519B2 (ja) * 2014-10-23 2018-07-11 株式会社デンソー 燃料噴射弁
US10415527B2 (en) * 2015-01-30 2019-09-17 Hitachi Automotive Systems, Ltd. Fuel injection valve
RU2724287C1 (ru) * 2020-01-10 2020-06-22 Александр Александрович Стуров Распылитель форсунки для дизельного двигателя внутреннего сгорания
US20230374961A1 (en) * 2022-05-20 2023-11-23 Caterpillar Inc. Fuel injector nozzle assembly including needle having flow guiding tip for directing fuel flow

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003935A1 (fr) * 1987-10-30 1989-05-05 Nauchno-Proizvodstvennoe Obiedinenie Po Toplivnoi Atomiseur de gicleur diesel
GB9425652D0 (en) * 1994-12-20 1995-02-22 Lucas Ind Plc Fuel injection nozzle
DE19755057A1 (de) * 1997-12-11 1999-06-17 Bosch Gmbh Robert Kraftstoffeinspritzdüse für selbstzündende Brennkraftmaschinen
DE19820513A1 (de) * 1998-05-08 1999-11-11 Mtu Friedrichshafen Gmbh Kraftstoffeinspritzdüse für eine Brennkraftmaschine
DE19844638A1 (de) * 1998-09-29 2000-03-30 Siemens Ag Kraftstoffeinspritzventil für eine Brennkraftmaschine
DE19931891A1 (de) * 1999-07-08 2001-01-18 Siemens Ag Kraftstoffeinspritzventil für eine Brennkraftmaschine
DE19942370A1 (de) * 1999-09-04 2001-03-22 Bosch Gmbh Robert Einspritzdüse für Brennkraftmaschinen mit einer Ringnut in der Düsennadel
DE10000501A1 (de) * 2000-01-08 2001-07-19 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
IT1319988B1 (it) * 2000-03-21 2003-11-12 Fiat Ricerche Spina di chiusura di un ugello in un iniettore di combustibile permotori a combustione interna.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0201066A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004036026A1 (fr) * 2002-10-15 2004-04-29 Robert Bosch Gmbh Dispositif d'injection de carburant d'un moteur a combustion interne
US7364099B2 (en) 2002-10-15 2008-04-29 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
WO2006040288A1 (fr) * 2004-10-14 2006-04-20 Robert Bosch Gmbh Soupape d'injection de carburant pour moteurs a combustion
WO2006092344A1 (fr) * 2005-03-01 2006-09-08 Robert Bosch Gmbh Injecteur de carburant comprenant un element de soupape d'injection a commande directe qui presente un double siege

Also Published As

Publication number Publication date
BR0106899A (pt) 2002-04-30
US20020179743A1 (en) 2002-12-05
DE10031264A1 (de) 2002-01-17
KR100772851B1 (ko) 2007-11-02
PL352634A1 (en) 2003-09-08
EP1198672B1 (fr) 2003-09-17
DE50100641D1 (de) 2003-10-23
US6892965B2 (en) 2005-05-17
KR20020027568A (ko) 2002-04-13
CN1262758C (zh) 2006-07-05
CN1383471A (zh) 2002-12-04
JP2004502075A (ja) 2004-01-22
WO2002001066A1 (fr) 2002-01-03

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