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 PDFInfo
- 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
Links
- 238000002347 injection Methods 0.000 title claims abstract description 37
- 239000007924 injection Substances 0.000 title claims abstract description 37
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 title claims description 6
- 239000007921 spray Substances 0.000 claims description 28
- 230000000694 effects Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F02M61/16—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)
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)
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)
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)
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 |
-
1998
- 1998-03-10 DE DE59800073T patent/DE59800073D1/de not_active Expired - Fee Related
- 1998-03-10 EP EP98104239A patent/EP0867611B1/fr not_active Expired - Lifetime
- 1998-03-10 ES ES98104239T patent/ES2141624T3/es not_active Expired - Lifetime
Patent Citations (6)
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)
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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