EP 1556605 A1 20050727 - FUEL INJECTION SYSTEM COMPRISING A PRESSURE INTENSIFIER AND A DELIVERY RATE-REDUCED LOW-PRESSURE CIRCUIT
Title (en)
FUEL INJECTION SYSTEM COMPRISING A PRESSURE INTENSIFIER AND A DELIVERY RATE-REDUCED LOW-PRESSURE CIRCUIT
Title (de)
KRAFTSTOFFEINSPRITZEINRICHTUNG MIT DRUCKÜBERSETZER UND FÖRDERMENGENREDUZIERTEM NIEDERDRUCKKREIS
Title (fr)
SYSTEME D'INJECTION DE CARBURANT A MULTIPLICATEUR DE PRESSION ET A CIRCUIT DE BASSE PRESSION A DEBIT DE REFOULEMENT REDUIT
Publication
Application
Priority
- DE 0302175 W 20030630
- DE 10248467 A 20021017
Abstract (en)
[origin: WO2004040118A1] The invention relates to a fuel injection system for an internal combustion engine comprising a fuel injector (10), which can be supplied with fuel by a fuel high-pressure source (1, 4). Said fuel injector has an injection valve element (37) that opens or closes injection openings (43). The fuel injection system also contains a low-pressure circuit (64) provided with a presupply pump (55) that delivers fuel from a fuel tank (14). The fuel injection system is characterized in that partial quantities of fuel returning from pressure intensifiers (7, 52) or from fuel injectors (10), the pressure of these partial quantities of fuel being reduced to the presupply pressure of the presupply pump (55), are fed to the low-pressure circuit (64) whereby arriving in a feeding section (60) via returns (50, 52; 13, 53).
IPC 1-7
IPC 8 full level
F02M 47/02 (2006.01); F02M 57/02 (2006.01); F02M 59/10 (2006.01); F02M 63/02 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 57/025 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F02M 63/025 (2013.01 - EP US); F02M 63/0285 (2013.01 - EP US); F02M 63/0015 (2013.01 - EP US); F02M 63/0043 (2013.01 - EP US)
Citation (search report)
See references of WO 2004040118A1
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
WO 2004040118 A1 20040513; DE 10248467 A1 20040506; DE 50304388 D1 20060907; EP 1556605 A1 20050727; EP 1556605 B1 20060726; JP 2006503225 A 20060126; JP 4437092 B2 20100324; US 2006042598 A1 20060302; US 7219659 B2 20070522
DOCDB simple family (application)
DE 0302175 W 20030630; DE 10248467 A 20021017; DE 50304388 T 20030630; EP 03809691 A 20030630; JP 2004547370 A 20030630; US 52846505 A 20050321