EP1310668A3 - Fuel injection system for a combustion engine - Google Patents
Fuel injection system for a combustion engine Download PDFInfo
- Publication number
- EP1310668A3 EP1310668A3 EP02022362A EP02022362A EP1310668A3 EP 1310668 A3 EP1310668 A3 EP 1310668A3 EP 02022362 A EP02022362 A EP 02022362A EP 02022362 A EP02022362 A EP 02022362A EP 1310668 A3 EP1310668 A3 EP 1310668A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- control
- pressure
- controlled
- fuel injection
- 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
- F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
- F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with 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
-
- 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
-
- 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
- F02M45/12—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship providing a continuous cyclic delivery with variable pressure
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Die Kraftstoffeinspritzeinrichtung weist für für jeden Zylinder der Brennkraftmaschine eine Kraftstoffhochdruckpumpe (10) und ein mit dieser verbundenes Kraftstoffeinspritzventil (12) auf. Ein Pumpenkolben (18) der Kraftstoffhochdruckpumpe (10) begrenzt einen Pumpenarbeitsraum (22), der mit einem Druckraum (40) des Kraftstoffeinspritzventils (12) verbunden ist, das ein Einspritzventilglied (28) aufweist, durch Einspritzöffnungen (32) gesteuert werden und das durch den im Druckraum (40) herrschenden Druck gegen eine Schließkraft in einer Öffnungsrichtung (29) bewegbar ist. Durch ein erstes Steuerventil (68) wird eine Verbindung (66) des Pumpenarbeitsraums (22) mit einem Entlastungsraum (24) gesteuert und durch ein zweites Steuerventil (70) wird eine Verbindung (64) eines mit dem Pumpenarbeitsraum (22) verbundenen Steuerdruckraums (52) mit einem Entlastungsraum (24) gesteuert. Ein mit dem Einspritzventilglied (28) verbundener Steuerkolben (50) unterteilt den Steuerdruckraum (52) in zwei voneinander getrennte Teilräume (54,56), die über eine Drosselstelle (55) miteinander verbunden sind. Bei geschlossenem zweitem Steuerventil (70) wirkt eine geringere Kraft in einer Schließrichtung des Einspritzventilglieds (28) auf den Steuerkolben (50) als bei geöffnetem zweitem Steuerventil (70). The fuel injection device has a high-pressure fuel pump (10) and a fuel injection valve (12) connected to each cylinder of the internal combustion engine. A pump piston (18) of the high-pressure fuel pump (10) delimits a pump work chamber (22) which is connected to a pressure chamber (40) of the fuel injection valve (12), which has an injection valve member (28), can be controlled by injection openings (32) and by the pressure prevailing in the pressure chamber (40) can be moved in an opening direction (29) against a closing force. A connection (66) of the pump work chamber (22) to a relief chamber (24) is controlled by a first control valve (68) and a connection (64) of a control pressure chamber (52) connected to the pump work chamber (22) is controlled by a second control valve (70) ) controlled with a relief chamber (24). A control piston (50) connected to the injection valve member (28) divides the control pressure chamber (52) into two separate compartments (54, 56) which are connected to each other via a throttle point (55). When the second control valve (70) is closed, a smaller force acts in a closing direction of the injection valve member (28) on the control piston (50) than when the second control valve (70) is open.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10155406A DE10155406A1 (en) | 2001-11-10 | 2001-11-10 | Fuel injection device for an internal combustion engine |
DE10155406 | 2001-11-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1310668A2 EP1310668A2 (en) | 2003-05-14 |
EP1310668A3 true EP1310668A3 (en) | 2004-12-15 |
EP1310668B1 EP1310668B1 (en) | 2006-09-20 |
Family
ID=7705404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02022362A Expired - Lifetime EP1310668B1 (en) | 2001-11-10 | 2002-10-08 | Fuel injection system for a combustion engine |
Country Status (3)
Country | Link |
---|---|
US (1) | US6779741B2 (en) |
EP (1) | EP1310668B1 (en) |
DE (2) | DE10155406A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105247200A (en) * | 2013-05-29 | 2016-01-13 | 罗伯特·博世有限公司 | Methods and devices for protecting antenna components from contaminants |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10160258A1 (en) * | 2001-12-07 | 2003-06-18 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
DE10160263A1 (en) * | 2001-12-07 | 2003-06-18 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
US7191762B2 (en) * | 2002-03-26 | 2007-03-20 | Volvo Lastvagnar Ab | Fuel injection system |
DE10358010B3 (en) * | 2003-12-11 | 2005-06-23 | Volkswagen Mechatronic Gmbh & Co. Kg | Pump-jet device for diesel engine fuel injection with pump, control valve and jet unit has throttle between working space of pump and discharge channel coupled to control space via valve element |
DE102004024926A1 (en) * | 2004-05-19 | 2005-12-15 | Volkswagen Mechatronic Gmbh & Co. Kg | Pump-nozzle unit |
US6976474B1 (en) * | 2004-07-19 | 2005-12-20 | Caterpillar Inc. | Mechanically actuated, electronically controlled fuel injection system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0262539A1 (en) * | 1986-09-25 | 1988-04-06 | Ganser-Hydromag | Fuel injector unit |
EP0905719A2 (en) * | 1997-09-20 | 1999-03-31 | LUCAS INDUSTRIES public limited company | Control method |
DE19826719A1 (en) * | 1998-06-16 | 1999-12-23 | Bosch Gmbh Robert | Valve control unit for a fuel injector |
EP0987431A2 (en) * | 1998-09-18 | 2000-03-22 | Lucas Industries Limited | Fuel injector |
EP1081373A2 (en) * | 1999-08-28 | 2001-03-07 | Delphi Technologies, Inc. | Fuel injector |
EP1098087A1 (en) * | 1999-10-09 | 2001-05-09 | Delphi Technologies, Inc. | Fuel Injector |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3469793A (en) * | 1967-05-11 | 1969-09-30 | Int Harvester Co | Fuel injection system |
US4200231A (en) * | 1978-06-19 | 1980-04-29 | General Motors Corporation | Fuel injector nozzle |
DE19951964A1 (en) * | 1999-10-28 | 2001-05-03 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
DE19952512A1 (en) * | 1999-10-30 | 2001-05-10 | Bosch Gmbh Robert | Pressure booster and fuel injection system with a pressure booster |
-
2001
- 2001-11-10 DE DE10155406A patent/DE10155406A1/en not_active Withdrawn
-
2002
- 2002-10-08 EP EP02022362A patent/EP1310668B1/en not_active Expired - Lifetime
- 2002-10-08 DE DE50208195T patent/DE50208195D1/en not_active Expired - Fee Related
- 2002-11-08 US US10/290,508 patent/US6779741B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0262539A1 (en) * | 1986-09-25 | 1988-04-06 | Ganser-Hydromag | Fuel injector unit |
EP0905719A2 (en) * | 1997-09-20 | 1999-03-31 | LUCAS INDUSTRIES public limited company | Control method |
DE19826719A1 (en) * | 1998-06-16 | 1999-12-23 | Bosch Gmbh Robert | Valve control unit for a fuel injector |
EP0987431A2 (en) * | 1998-09-18 | 2000-03-22 | Lucas Industries Limited | Fuel injector |
EP1081373A2 (en) * | 1999-08-28 | 2001-03-07 | Delphi Technologies, Inc. | Fuel injector |
EP1098087A1 (en) * | 1999-10-09 | 2001-05-09 | Delphi Technologies, Inc. | Fuel Injector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105247200A (en) * | 2013-05-29 | 2016-01-13 | 罗伯特·博世有限公司 | Methods and devices for protecting antenna components from contaminants |
CN105247200B (en) * | 2013-05-29 | 2019-06-11 | 罗伯特·博世有限公司 | High-pressure pump for fuel injection system |
Also Published As
Publication number | Publication date |
---|---|
EP1310668A2 (en) | 2003-05-14 |
EP1310668B1 (en) | 2006-09-20 |
US6779741B2 (en) | 2004-08-24 |
US20030111051A1 (en) | 2003-06-19 |
DE50208195D1 (en) | 2006-11-02 |
DE10155406A1 (en) | 2003-05-22 |
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