EP1312792A3 - Fuel injection apparatus for an internal combustion engine - Google Patents
Fuel injection apparatus for an internal combustion engine Download PDFInfo
- Publication number
- EP1312792A3 EP1312792A3 EP02022358A EP02022358A EP1312792A3 EP 1312792 A3 EP1312792 A3 EP 1312792A3 EP 02022358 A EP02022358 A EP 02022358A EP 02022358 A EP02022358 A EP 02022358A EP 1312792 A3 EP1312792 A3 EP 1312792A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- combustion engine
- internal combustion
- fuel injection
- pump
- 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
- 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
- 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
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
-
- 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
-
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
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 eine Kraftstoffhochdruckpumpe (10) und ein mit dieser verbundenes Kraftstoffeinspritzventil (12) für jeden Zylinder der Brennkraftmaschine auf. Die Kraftstoffhochdruckpumpe (10) weist einen durch die Brennkraftmaschine in einer Hubbewegung angetriebenen Pumpenkolben (18) auf, der einen Pumpenarbeitsraum (22) begrenzt, welcher über eine Leitung (14) mit einem Druckraum (40) des getrennt von der Kraftstoffhochdruckpumpe (10) an der Brennkraftmaschine angeordneten Kraftstoffeinspritzventils (12) verbunden ist, das ein Einspritzventilglied (28) aufweist, durch das wenigstens eine Einspritzöffnung (32) gesteuert wird und das durch den im Druckraum (40) herrschenden Druck beaufschlagt gegen eine Schließkraft in Öffnungsrichtung (29) zur Freigabe der wenigstens einen Einspritzöffnung (32) bewegbar ist. Am Kraftstoffeinspritzventil (12) ist ein elektrisch betätigtes Steuerventil (58) vorgesehen, durch das zumindest mittelbar eine Verbindung (54) des Pumpenarbeitsraums (22) mit einem Speicherraum (56) gesteuert wird, in dem bei geöffnetem Steuerventil (58) durch dieses abgesteuerter Kraftstoff unter Druck speicherbar ist. The fuel injection device has a high-pressure fuel pump (10) and a fuel injection valve (12) connected to it for each cylinder of the internal combustion engine. The high-pressure fuel pump (10) has a pump piston (18) which is driven by the internal combustion engine in a lifting movement and which delimits a pump working chamber (22) which, via a line (14), communicates with a pressure chamber (40) which is separate from the high-pressure fuel pump (10) The fuel injection valve (12) which is arranged in the internal combustion engine and which has an injection valve member (28) through which at least one injection opening (32) is controlled and which is acted upon by the pressure prevailing in the pressure chamber (40) against a closing force in the opening direction (29) for release the at least one injection opening (32) is movable. An electrically operated control valve (58) is provided on the fuel injection valve (12), by means of which at least indirectly a connection (54) of the pump work chamber (22) to a storage chamber (56) is controlled, in which fuel which is deactivated by the control valve (58) is opened can be stored under pressure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10155973A DE10155973A1 (en) | 2001-11-14 | 2001-11-14 | Fuel injection device for an internal combustion engine |
DE10155973 | 2001-11-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1312792A2 EP1312792A2 (en) | 2003-05-21 |
EP1312792A3 true EP1312792A3 (en) | 2004-09-01 |
EP1312792B1 EP1312792B1 (en) | 2005-12-28 |
Family
ID=7705752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02022358A Expired - Lifetime EP1312792B1 (en) | 2001-11-14 | 2002-10-08 | Fuel injection apparatus for an internal combustion engine |
Country Status (3)
Country | Link |
---|---|
US (1) | US6763809B2 (en) |
EP (1) | EP1312792B1 (en) |
DE (2) | DE10155973A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1359316B1 (en) * | 2002-05-03 | 2007-04-18 | Delphi Technologies, Inc. | Fuel injection system |
US7353805B2 (en) * | 2003-01-30 | 2008-04-08 | Robert Bosch Gmbh | Fuel injector pump with trapped volume |
WO2004072470A1 (en) * | 2003-02-12 | 2004-08-26 | Robert Bosch Gmbh | Fuel injector pump system with high pressure post injection |
US7451743B2 (en) * | 2003-03-04 | 2008-11-18 | Robert Bosch Gmbh | Fuel injection system with accumulator fill valve assembly |
EP1541860B1 (en) * | 2003-12-12 | 2007-07-04 | Delphi Technologies, Inc. | Fuel injector with control valve to control the pressure in the needle control chamber |
US7066151B1 (en) * | 2005-04-07 | 2006-06-27 | Robert Bosch Gmbh | Fuel injector with spill chamber |
DE102005056133A1 (en) * | 2005-11-23 | 2007-05-24 | L'orange Gmbh | Injector for combustion engine, has actuator and control chamber whereby pressure reservoir is arranged between control valve and nozzle body |
US10982635B2 (en) * | 2012-05-29 | 2021-04-20 | Delphi Technologies Ip Limited | Fuel injector and method for controlling the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0524132A2 (en) * | 1991-07-16 | 1993-01-20 | Stanadyne Automotive Corp. | Fuel system for rotary distributor fuel injection pump |
EP0957261A2 (en) * | 1998-05-15 | 1999-11-17 | LUCAS INDUSTRIES public limited company | Fuel system and pump suitable for use therein |
EP1236884A2 (en) * | 2001-02-28 | 2002-09-04 | Robert Bosch Gmbh | Fuel injection device for internal combustion engines |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3521428A1 (en) * | 1985-06-14 | 1986-12-18 | Robert Bosch Gmbh, 7000 Stuttgart | FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES |
CH668621A5 (en) * | 1986-01-22 | 1989-01-13 | Dereco Dieselmotoren Forschung | FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE. |
US5732679A (en) * | 1995-04-27 | 1998-03-31 | Isuzu Motors Limited | Accumulator-type fuel injection system |
DE19952512A1 (en) * | 1999-10-30 | 2001-05-10 | Bosch Gmbh Robert | Pressure booster and fuel injection system with a pressure booster |
-
2001
- 2001-11-14 DE DE10155973A patent/DE10155973A1/en not_active Withdrawn
-
2002
- 2002-10-08 EP EP02022358A patent/EP1312792B1/en not_active Expired - Lifetime
- 2002-10-08 DE DE50205426T patent/DE50205426D1/en not_active Expired - Fee Related
- 2002-11-13 US US10/292,547 patent/US6763809B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0524132A2 (en) * | 1991-07-16 | 1993-01-20 | Stanadyne Automotive Corp. | Fuel system for rotary distributor fuel injection pump |
EP0957261A2 (en) * | 1998-05-15 | 1999-11-17 | LUCAS INDUSTRIES public limited company | Fuel system and pump suitable for use therein |
EP1236884A2 (en) * | 2001-02-28 | 2002-09-04 | Robert Bosch Gmbh | Fuel injection device for internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
US6763809B2 (en) | 2004-07-20 |
EP1312792B1 (en) | 2005-12-28 |
DE10155973A1 (en) | 2003-05-22 |
DE50205426D1 (en) | 2006-02-02 |
US20030111053A1 (en) | 2003-06-19 |
EP1312792A2 (en) | 2003-05-21 |
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