EP0890735A2 - Kraftstoffeinspritzventil - Google Patents
Kraftstoffeinspritzventil Download PDFInfo
- Publication number
- EP0890735A2 EP0890735A2 EP98109048A EP98109048A EP0890735A2 EP 0890735 A2 EP0890735 A2 EP 0890735A2 EP 98109048 A EP98109048 A EP 98109048A EP 98109048 A EP98109048 A EP 98109048A EP 0890735 A2 EP0890735 A2 EP 0890735A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rounding
- spray holes
- valve
- degree
- combustion chamber
- 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
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
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/184—Discharge orifices having non circular sections
Abstract
Description
- Fig. 1
- eine teilweise geschnittene Darstellung des unteren Bereichs eines erfindungsgemäßen Kraftstoffeinspritzventils und
- Fig. 2
- eine geschnittene Darstellung eines Kraftstoffeinspritzventils.
Claims (5)
- Kraftstoffeinspritzventil für Brennkraftmaschinen umfassend ein in einem Ventilkörper (43) entgegen der Rückstellkraft einer Ventilfeder (50) verschiebliches Ventilglied (41) mit einer Ventildichtfläche (44), die mit einem an dem Ventilkörper angeordneten Ventilsitz (45) zusammenwirkt, und mit mehreren unterhalb des Ventilsitzes (45) in dem Ventilkörper (43) angeordneten Spritzlöchern, deren Einlaßöffnungen (60) abgerundet sind, dadurch gekennzeichnet, daß ein Teil der Spritzlöcher (53) wenigstens einen von dem Rest der Spritzlöcher (57) unterschiedlichen Rundungsgrad aufweist.
- Kraftstoffeinspritzventil nach Anspruch 1, dadurch gekennzeichnet, daß die Einlaßöffnungen (60) einzelner Spritzlöcher (53, 57) auf ihrer dem Ventilglied (41) zugewandten Seite einen anderen Rundungsgrad aufweisen als auf ihrer dem Ventilglied (41) abgewandten Seite.
- Kraftstoffeinspritzventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Rundungsgrad der Spritzlöcher (53, 57) angepaßt ist auf die Anordnung der Spritzlöcher (53, 57) in dem Ventilkörper (41), auf die Einbauposition in einem Brennraum der Brennkraftmaschine und auf die Brennraumform der Brennkraftmaschine.
- Kraftstoffeinspritzventil nach Anspruch 3, dadurch gekennzeichnet, daß der Rundungsgrad der Einlaßöff-nung (60) des Spritzlochs (53), das von einer Brennraumwand im eingebauten Zustand weiter entfernt ist einen größeren Rundungsgrad aufweist, als die Einlaßöffnung (60) eines von der Brennraumwand weniger weit entfernten Spritzlochs (57).
- Kraftstoffeinspritzventil nach Anspruch 3, dadurch gekennzeichnet, daß eines oder mehrere der Spritzlöcher keine Rundung aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19729827A DE19729827A1 (de) | 1997-07-11 | 1997-07-11 | Kraftstoffeinspritzventil |
DE19729827 | 1997-07-11 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0890735A2 true EP0890735A2 (de) | 1999-01-13 |
EP0890735A3 EP0890735A3 (de) | 2001-10-10 |
EP0890735B1 EP0890735B1 (de) | 2006-10-18 |
EP0890735B2 EP0890735B2 (de) | 2014-09-10 |
Family
ID=7835445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109048.3A Expired - Lifetime EP0890735B2 (de) | 1997-07-11 | 1998-05-19 | Kraftstoffeinspritzventil |
Country Status (4)
Country | Link |
---|---|
US (1) | US5992766A (de) |
EP (1) | EP0890735B2 (de) |
JP (1) | JP4154033B2 (de) |
DE (2) | DE19729827A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000060234A1 (de) * | 1999-03-31 | 2000-10-12 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zum hydroerosiven runden von bohrungskanten in einem düsenkörper und düsenkörper |
FR2796104A1 (fr) * | 1999-07-08 | 2001-01-12 | Siemens Ag | Corps d'injecteur presentant une geometrie optimale d'orifice d'injection et procede pour arrondir les aretes d'un tel orifice |
WO2003093669A1 (de) * | 2002-05-02 | 2003-11-13 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für brennkraftmaschinen |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4189714B2 (ja) * | 2000-08-03 | 2008-12-03 | 株式会社デンソー | 燃料噴射装置 |
DE10156020A1 (de) * | 2001-11-15 | 2003-07-17 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
DE10330256A1 (de) † | 2003-07-04 | 2005-01-20 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE102004062008A1 (de) * | 2004-12-23 | 2006-07-13 | Robert Bosch Gmbh | Kraftstofffilter mit Auslassöffnungen, die vorzugsweise mit einem hydroerosiven Verfahren bearbeitet sind |
US7572997B2 (en) * | 2007-02-28 | 2009-08-11 | Caterpillar Inc. | EDM process for manufacturing reverse tapered holes |
JP5257456B2 (ja) * | 2008-09-24 | 2013-08-07 | トヨタ自動車株式会社 | 内燃機関の燃料噴射弁及びその製造方法 |
WO2019030078A1 (en) * | 2017-08-08 | 2019-02-14 | Robert Bosch Gmbh | FUEL INJECTOR NOZZLE |
DE102019202073A1 (de) | 2019-02-15 | 2020-08-20 | Robert Bosch Gmbh | Verfahren zum Herstellen einer Einspritzdüse zum Einspritzen von Kraftstoff in einen Brennraum einer Brennkraftmaschine und Düsenanordnung mit einer Einspritzdüse |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0370659A1 (de) | 1988-11-19 | 1990-05-30 | Lucas Industries Public Limited Company | Kraftstoffeinspritzdüse |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2557772A1 (de) * | 1975-12-20 | 1977-06-23 | Kloeckner Humboldt Deutz Ag | Brennstoffeinspritzventil |
JPS58106167A (ja) † | 1981-12-21 | 1983-06-24 | Hino Motors Ltd | 内燃機関の燃料噴射ノズル |
JPS6049262U (ja) * | 1983-09-14 | 1985-04-06 | 日産自動車株式会社 | デイ−ゼル機関用燃料噴射弁 |
US4578164A (en) * | 1983-08-24 | 1986-03-25 | Nissan Motor Co., Ltd. | Method of electrolytically finishing spray-hole of fuel injection nozzle |
JPH0267459A (ja) * | 1988-08-31 | 1990-03-07 | Nippon Denso Co Ltd | 燃料噴射ノズル |
JPH0494452A (ja) * | 1990-08-08 | 1992-03-26 | Nissan Motor Co Ltd | 燃料噴射ノズル |
JPH0583367U (ja) * | 1992-04-20 | 1993-11-12 | 日産ディーゼル工業株式会社 | 直噴式ディーゼルエンジンの燃料噴射ノズル |
DE19507188C1 (de) * | 1995-03-02 | 1996-08-14 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
EP0809017A1 (de) * | 1996-05-22 | 1997-11-26 | Steyr-Daimler-Puch Aktiengesellschaft | Zweistufige Kraftstoffeinspritzdüse für Brennkraftmaschinen |
-
1997
- 1997-07-11 DE DE19729827A patent/DE19729827A1/de not_active Withdrawn
-
1998
- 1998-05-19 DE DE59813768T patent/DE59813768D1/de not_active Expired - Lifetime
- 1998-05-19 EP EP98109048.3A patent/EP0890735B2/de not_active Expired - Lifetime
- 1998-07-08 JP JP19284298A patent/JP4154033B2/ja not_active Expired - Fee Related
- 1998-07-13 US US09/114,277 patent/US5992766A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0370659A1 (de) | 1988-11-19 | 1990-05-30 | Lucas Industries Public Limited Company | Kraftstoffeinspritzdüse |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000060234A1 (de) * | 1999-03-31 | 2000-10-12 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zum hydroerosiven runden von bohrungskanten in einem düsenkörper und düsenkörper |
FR2796104A1 (fr) * | 1999-07-08 | 2001-01-12 | Siemens Ag | Corps d'injecteur presentant une geometrie optimale d'orifice d'injection et procede pour arrondir les aretes d'un tel orifice |
WO2003093669A1 (de) * | 2002-05-02 | 2003-11-13 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für brennkraftmaschinen |
Also Published As
Publication number | Publication date |
---|---|
EP0890735B2 (de) | 2014-09-10 |
DE59813768D1 (de) | 2006-11-30 |
JPH1193806A (ja) | 1999-04-06 |
EP0890735A3 (de) | 2001-10-10 |
DE19729827A1 (de) | 1999-01-14 |
JP4154033B2 (ja) | 2008-09-24 |
EP0890735B1 (de) | 2006-10-18 |
US5992766A (en) | 1999-11-30 |
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