ATE331135T1 - FUEL INJECTION DEVICE - Google Patents
FUEL INJECTION DEVICEInfo
- Publication number
- ATE331135T1 ATE331135T1 AT04712002T AT04712002T ATE331135T1 AT E331135 T1 ATE331135 T1 AT E331135T1 AT 04712002 T AT04712002 T AT 04712002T AT 04712002 T AT04712002 T AT 04712002T AT E331135 T1 ATE331135 T1 AT E331135T1
- Authority
- AT
- Austria
- Prior art keywords
- beginning
- piston
- pumping
- pump
- control
- Prior art date
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
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/08—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by two or more pumping elements with conjoint outlet or several pumping elements feeding one engine cylinder
-
- 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
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
-
- 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
-
- 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
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
-
- 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
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
- F02M59/265—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders characterised by the arrangement or form of spill port of spill contour on the 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
- 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
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
- F02M59/28—Mechanisms therefor
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a fuel injection device comprising a fuel pump embodied as a double piston pump which is used to pump fuel into the combustion chamber of an internal combustion engine to an injector respectively associated therewith and which is optimized with regard to the injection process thereof. The double piston pump comprises two pistons (70, 73) which pump in parallel along a common line and which are provided with control edges. A control rod (71,74) is associated with each piston (70,73) and is used to control the beginning and end of the pumping. The beginning of the pumping can be adjusted on the first piston (70) and the end of the pumping can be adjusted on the second piston (73). A control pressure is provided prior to the beginning of injection according to engine operation parameters in order to adjust the force acting upon the injector needle (12) in the direction of closure, said pressure enabling pressure to be impinged upon the valve needle (12) in the direction of closure. In order to compensate an alteration in the beginning of injection caused thereby, the control rod (71) of the first piston (70) regulating the beginning of pumping is adjusted accordingly.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10307398 | 2003-02-20 | ||
DE10319623A DE10319623A1 (en) | 2003-02-20 | 2003-05-02 | Fuel injection system |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE331135T1 true ATE331135T1 (en) | 2006-07-15 |
Family
ID=32909535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT04712002T ATE331135T1 (en) | 2003-02-20 | 2004-02-18 | FUEL INJECTION DEVICE |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1597474B1 (en) |
JP (1) | JP4142688B2 (en) |
KR (1) | KR100705854B1 (en) |
AT (1) | ATE331135T1 (en) |
DE (1) | DE502004000835D1 (en) |
WO (1) | WO2004074675A1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1253180A (en) * | 1960-04-06 | 1961-02-03 | Maschf Augsburg Nuernberg Ag | Fuel injection pump |
DE1526711A1 (en) * | 1966-01-29 | 1969-12-04 | Maschf Augsburg Nuernberg Ag | Fuel injection pump for large quantities in internal combustion engines |
US3976249A (en) * | 1973-05-12 | 1976-08-24 | C.A.V. Limited | Fuel injection systems for internal combustion engines |
DE2558790A1 (en) * | 1975-12-24 | 1977-07-14 | Bosch Gmbh Robert | FUEL INJECTION NOZZLE FOR COMBUSTION MACHINES |
DE2801976A1 (en) * | 1978-01-18 | 1979-07-19 | Bosch Gmbh Robert | FUEL INJECTION SYSTEM |
US4327694A (en) * | 1979-11-01 | 1982-05-04 | Caterpillar Tractor Co. | Unit fuel pump-injector with overfuel capability and timing retardation |
JPS57102527A (en) * | 1980-12-15 | 1982-06-25 | Diesel Kiki Co Ltd | Fuel injection nozzle unit |
US5201295A (en) | 1986-07-30 | 1993-04-13 | Ail Corporation | High pressure fuel injection system |
JPH05201295A (en) * | 1992-01-29 | 1993-08-10 | Yazaki Corp | Connector for automotive door |
-
2004
- 2004-02-18 EP EP04712002A patent/EP1597474B1/en not_active Expired - Lifetime
- 2004-02-18 WO PCT/EP2004/001509 patent/WO2004074675A1/en active IP Right Grant
- 2004-02-18 KR KR1020057015449A patent/KR100705854B1/en not_active IP Right Cessation
- 2004-02-18 JP JP2005518424A patent/JP4142688B2/en not_active Expired - Fee Related
- 2004-02-18 AT AT04712002T patent/ATE331135T1/en not_active IP Right Cessation
- 2004-02-18 DE DE502004000835T patent/DE502004000835D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE502004000835D1 (en) | 2006-08-03 |
JP4142688B2 (en) | 2008-09-03 |
EP1597474B1 (en) | 2006-06-21 |
JP2006515399A (en) | 2006-05-25 |
WO2004074675A1 (en) | 2004-09-02 |
KR20050107585A (en) | 2005-11-14 |
EP1597474A1 (en) | 2005-11-23 |
KR100705854B1 (en) | 2007-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |