EP0890735A3 - Fuel injection valve - Google Patents
Fuel injection valve Download PDFInfo
- Publication number
- EP0890735A3 EP0890735A3 EP98109048A EP98109048A EP0890735A3 EP 0890735 A3 EP0890735 A3 EP 0890735A3 EP 98109048 A EP98109048 A EP 98109048A EP 98109048 A EP98109048 A EP 98109048A EP 0890735 A3 EP0890735 A3 EP 0890735A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- fuel injection
- spray holes
- injection valve
- valve 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.)
- Granted
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Bei einem Kraftstoffeinspritzventil für Brennkraftmaschinen umfassend ein in einem Ventilkörper (43) entgegen der Rückstellkraft einer Ventilfeder verschiebliches Ventilglied (41) mit einer Ventildichtfläche (44), die mit einem an dem Ventilkörper (43) angeordneten Ventilsitz (45) zusammenwirkt, und mit mehreren unterhalb des Ventilsitzes (45) in dem Ventilkörper (43) angeordneten Spritzlöchern (53,57), deren Einlaßöffnungen (60) abgerundet sind, wobei ein Teil der Spritzlöcher (53) wenigstens einen von dem Rest der Spritzlöcher (57) unterschiedlichen Rundungsgrad aufweist. In a fuel injection valve for internal combustion engines, a valve member (41) which is displaceable in a valve body (43) against the restoring force of a valve spring and has a valve sealing surface (44) which interacts with a valve seat (45) arranged on the valve body (43) and with several below of the valve seat (45) in the valve body (43) arranged spray holes (53, 57), the inlet openings (60) of which are rounded, a part of the spray holes (53) having at least one degree of rounding different from the rest of the spray holes (57).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19729827 | 1997-07-11 | ||
DE19729827A DE19729827A1 (en) | 1997-07-11 | 1997-07-11 | Fuel injector |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0890735A2 EP0890735A2 (en) | 1999-01-13 |
EP0890735A3 true EP0890735A3 (en) | 2001-10-10 |
EP0890735B1 EP0890735B1 (en) | 2006-10-18 |
EP0890735B2 EP0890735B2 (en) | 2014-09-10 |
Family
ID=7835445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109048.3A Expired - Lifetime EP0890735B2 (en) | 1997-07-11 | 1998-05-19 | Fuel injection valve |
Country Status (4)
Country | Link |
---|---|
US (1) | US5992766A (en) |
EP (1) | EP0890735B2 (en) |
JP (1) | JP4154033B2 (en) |
DE (2) | DE19729827A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19914719C2 (en) * | 1999-03-31 | 2001-05-03 | Siemens Ag | Device for hydroerosive rounding of inlet edges of the spray hole channels in a nozzle body |
DE19931890A1 (en) * | 1999-07-08 | 2001-01-18 | Siemens Ag | Edge rounding method for combustion engine fuel injection nozzle injection orifice channel |
JP4189714B2 (en) * | 2000-08-03 | 2008-12-03 | 株式会社デンソー | Fuel injection device |
DE10156020A1 (en) * | 2001-11-15 | 2003-07-17 | Bosch Gmbh Robert | Fuel injector |
DE10219608A1 (en) * | 2002-05-02 | 2003-11-20 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
DE10330256A1 (en) † | 2003-07-04 | 2005-01-20 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engine, comprises bulges arranged such that the two connecting lines of points of largest distance to the center form an angle of less than 180 degrees with the mirror plane |
DE102004062008A1 (en) * | 2004-12-23 | 2006-07-13 | Robert Bosch Gmbh | Fuel filter with outlet openings, which are preferably processed by a hydroerosive method |
US7572997B2 (en) * | 2007-02-28 | 2009-08-11 | Caterpillar Inc. | EDM process for manufacturing reverse tapered holes |
EP2333307A4 (en) * | 2008-09-24 | 2013-03-13 | Toyota Motor Co Ltd | Fuel injection valve for internal combustion engine and method of manufacturing the same |
WO2019030078A1 (en) * | 2017-08-08 | 2019-02-14 | Robert Bosch Gmbh | Fuel injector nozzle |
DE102019202073A1 (en) | 2019-02-15 | 2020-08-20 | Robert Bosch Gmbh | Method for producing an injection nozzle for injecting fuel into a combustion chamber of an internal combustion engine and nozzle arrangement with an injection nozzle |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4069978A (en) * | 1975-12-20 | 1978-01-24 | Klockner-Humboldt-Deutz Aktiengesellschaft | Fuel injection valve |
US4578164A (en) * | 1983-08-24 | 1986-03-25 | Nissan Motor Co., Ltd. | Method of electrolytically finishing spray-hole of fuel injection nozzle |
JPH0267459A (en) * | 1988-08-31 | 1990-03-07 | Nippon Denso Co Ltd | Fuel injection nozzle |
EP0370659A1 (en) * | 1988-11-19 | 1990-05-30 | Lucas Industries Public Limited Company | Fuel injection nozzle |
DE19507188C1 (en) * | 1995-03-02 | 1996-08-14 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
EP0809017A1 (en) * | 1996-05-22 | 1997-11-26 | Steyr-Daimler-Puch Aktiengesellschaft | Two-stage fuel injection nozzel for internal combustion engine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58106167A (en) † | 1981-12-21 | 1983-06-24 | Hino Motors Ltd | Fuel injection nozzle of internal-combustion engine |
JPS6049262U (en) * | 1983-09-14 | 1985-04-06 | 日産自動車株式会社 | Diesel engine fuel injection valve |
JPH0494452A (en) * | 1990-08-08 | 1992-03-26 | Nissan Motor Co Ltd | Fuel injection nozzle |
JPH0583367U (en) * | 1992-04-20 | 1993-11-12 | 日産ディーゼル工業株式会社 | Fuel injection nozzle for direct injection diesel engine |
-
1997
- 1997-07-11 DE DE19729827A patent/DE19729827A1/en not_active Withdrawn
-
1998
- 1998-05-19 EP EP98109048.3A patent/EP0890735B2/en not_active Expired - Lifetime
- 1998-05-19 DE DE59813768T patent/DE59813768D1/en not_active Expired - Lifetime
- 1998-07-08 JP JP19284298A patent/JP4154033B2/en not_active Expired - Fee Related
- 1998-07-13 US US09/114,277 patent/US5992766A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4069978A (en) * | 1975-12-20 | 1978-01-24 | Klockner-Humboldt-Deutz Aktiengesellschaft | Fuel injection valve |
US4578164A (en) * | 1983-08-24 | 1986-03-25 | Nissan Motor Co., Ltd. | Method of electrolytically finishing spray-hole of fuel injection nozzle |
JPH0267459A (en) * | 1988-08-31 | 1990-03-07 | Nippon Denso Co Ltd | Fuel injection nozzle |
EP0370659A1 (en) * | 1988-11-19 | 1990-05-30 | Lucas Industries Public Limited Company | Fuel injection nozzle |
DE19507188C1 (en) * | 1995-03-02 | 1996-08-14 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
EP0809017A1 (en) * | 1996-05-22 | 1997-11-26 | Steyr-Daimler-Puch Aktiengesellschaft | Two-stage fuel injection nozzel for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
US5992766A (en) | 1999-11-30 |
EP0890735B1 (en) | 2006-10-18 |
EP0890735A2 (en) | 1999-01-13 |
JPH1193806A (en) | 1999-04-06 |
DE19729827A1 (en) | 1999-01-14 |
JP4154033B2 (en) | 2008-09-24 |
DE59813768D1 (en) | 2006-11-30 |
EP0890735B2 (en) | 2014-09-10 |
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