EP0867611A1 - Buse d'injection de combustible pour un moteur à combustion interne - Google Patents

Buse d'injection de combustible pour un moteur à combustion interne Download PDF

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Publication number
EP0867611A1
EP0867611A1 EP98104239A EP98104239A EP0867611A1 EP 0867611 A1 EP0867611 A1 EP 0867611A1 EP 98104239 A EP98104239 A EP 98104239A EP 98104239 A EP98104239 A EP 98104239A EP 0867611 A1 EP0867611 A1 EP 0867611A1
Authority
EP
European Patent Office
Prior art keywords
nozzle needle
nozzle
guide
closing spring
valve seat
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
EP98104239A
Other languages
German (de)
English (en)
Other versions
EP0867611B1 (fr
Inventor
Rüdiger Kuss
Gerhard Pabinger
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0867611A1 publication Critical patent/EP0867611A1/fr
Application granted granted Critical
Publication of EP0867611B1 publication Critical patent/EP0867611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
    • 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
    • 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

Definitions

  • the invention relates to a fuel injection nozzle for an internal combustion engine with one in a nozzle body in a guide movable against an eccentric closing spring arranged nozzle needle with a tip, the one with the nozzle needle in sections in the end region remote from the guide valve seat arranged at a distance surrounding the fuel inlet bore cooperates to control the distribution of the circumference of the valve seat Injection holes through which a pre and main injection by means of the opposite the fuel flow direction against the closing spring force actuated nozzle needle is effected.
  • a fuel injector 1 for an internal combustion engine has one in a nozzle body 2 via a guide 3 is movable against a first stroke, off-center closing spring 4 arranged nozzle needle 5.
  • the nozzle needle 5 acts with its tip 6 with one in the end region 7 remote from the guide Nozzle needle 5 in sections with a fuel supply hole enclosing it at a distance 8 arranged valve seat 9 together for controlling the circumference of the valve seat 9 arranged spray holes 10.
  • About the spray holes 10 is a pre and main injection by means of the opposite of the fuel flow direction nozzle nozzle 5 actuated against the closing spring force.
  • the guide 3 points in the nozzle needle lifting direction closing spring side on a cylindrical cross section 13, the valve seat side expanded to oval or elliptical cross sections 14, 14 ', FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP98104239A 1997-03-26 1998-03-10 Buse d'injection de combustible pour un moteur à combustion interne Expired - Lifetime EP0867611B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712670 1997-03-26
DE19712670 1997-03-26

Publications (2)

Publication Number Publication Date
EP0867611A1 true EP0867611A1 (fr) 1998-09-30
EP0867611B1 EP0867611B1 (fr) 1999-12-29

Family

ID=7824667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104239A Expired - Lifetime EP0867611B1 (fr) 1997-03-26 1998-03-10 Buse d'injection de combustible pour un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP0867611B1 (fr)
DE (1) DE59800073D1 (fr)
ES (1) ES2141624T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016759A1 (fr) * 2000-08-24 2002-02-28 Robert Bosch Gmbh Soupape d'injection de carburant pour moteurs a combustion interne
EP1391610A1 (fr) * 2002-08-20 2004-02-25 Siemens VDO Automotive S.p.A. Soupape à pointeau et dispositif de dosage comprenant une telle soupape
DE10023957B4 (de) * 2000-05-16 2008-07-31 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143026A1 (de) * 2001-09-01 2003-03-20 Bayerische Motoren Werke Ag Verfahren zur Gemischbildung bei einer direkt einspritzenden, fremdgezündeten Brennkraftmaschine
DE102016200700A1 (de) * 2016-01-20 2017-07-20 Ford Global Technologies, Llc Verfahren zum Betreiben einer direkteinspritzenden Brennkraftmaschine und fremdgezündete Brennkraftmaschine zur Durchführung eines derartigen Verfahrens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424892A1 (de) * 1983-07-09 1985-01-17 Lucas Industries P.L.C., Birmingham, West Midlands Kraftstoff-einspritzduese
US4715542A (en) * 1985-03-04 1987-12-29 Steyr-Daimler-Puch Ag Fuel injection nozzle for internal combustion engines
GB2226078A (en) * 1988-11-09 1990-06-20 Lucas Ind Plc C.i. engine fuel injection nozzle
EP0413173A2 (fr) * 1989-08-17 1991-02-20 STEYR-DAIMLER-PUCH Aktiengesellschaft Injecteur de combustible pour moteurs à combustion interne
WO1992019857A1 (fr) * 1991-04-26 1992-11-12 Lucas Industries Public Limited Company Injecteur de carburant
EP0637686A1 (fr) 1993-08-03 1995-02-08 Robert Bosch Gmbh Injecteur de combustible pour moteurs à combustion interne

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424892A1 (de) * 1983-07-09 1985-01-17 Lucas Industries P.L.C., Birmingham, West Midlands Kraftstoff-einspritzduese
US4715542A (en) * 1985-03-04 1987-12-29 Steyr-Daimler-Puch Ag Fuel injection nozzle for internal combustion engines
GB2226078A (en) * 1988-11-09 1990-06-20 Lucas Ind Plc C.i. engine fuel injection nozzle
EP0413173A2 (fr) * 1989-08-17 1991-02-20 STEYR-DAIMLER-PUCH Aktiengesellschaft Injecteur de combustible pour moteurs à combustion interne
WO1992019857A1 (fr) * 1991-04-26 1992-11-12 Lucas Industries Public Limited Company Injecteur de carburant
EP0637686A1 (fr) 1993-08-03 1995-02-08 Robert Bosch Gmbh Injecteur de combustible pour moteurs à combustion interne

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023957B4 (de) * 2000-05-16 2008-07-31 Robert Bosch Gmbh Kraftstoffeinspritzventil für Brennkraftmaschinen
WO2002016759A1 (fr) * 2000-08-24 2002-02-28 Robert Bosch Gmbh Soupape d'injection de carburant pour moteurs a combustion interne
EP1391610A1 (fr) * 2002-08-20 2004-02-25 Siemens VDO Automotive S.p.A. Soupape à pointeau et dispositif de dosage comprenant une telle soupape

Also Published As

Publication number Publication date
EP0867611B1 (fr) 1999-12-29
DE59800073D1 (de) 2000-02-03
ES2141624T3 (es) 2000-03-16

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