EP 1321664 A2 20030625 - Fuel injection system with an apparatus for removing air from fuel
Title (en)
Fuel injection system with an apparatus for removing air from fuel
Title (de)
Kraftstoffeinspritzsystem mit einer Vorrichtung zum Entlüften von Kraftstoff
Title (fr)
Système d'injection de carburant avec dispositif pour extraction d'air du carburant
Publication
Application
Priority
- JP 2001381415 A 20011214
- JP 2002310524 A 20021025
Abstract (en)
A pressure reducing valve (6) of an accumulation type fuel injection system of a multi-cylinder diesel engine opens during an engine starting operation or an idling operation immediately following the engine starting operation for a period corresponding to cooling water temperature or fuel temperature. Thus, the fuel in a high-pressure fuel passage leading from a fuel supply pump (3) to fuel injection valves (2) through the common rail (1) is discharged into a fuel tank (5). Accordingly, air entering the fuel supply pump (3) while the engine is stopped is discharged to the fuel tank (5) through fuel recirculating passages (13, 15, 16). As a result, the air delivered from the fuel supply pump (3) to the injector (2) is minimized and injection quantity control is stabilized when the engine is started.
IPC 1-7
IPC 8 full level
F02D 41/06 (2006.01); F02D 41/38 (2006.01); F02D 41/40 (2006.01); F02M 37/00 (2006.01); F02M 37/20 (2006.01); F02M 47/00 (2006.01); F02M 55/00 (2006.01); F02M 63/00 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP)
F02D 41/062 (2013.01); F02D 41/065 (2013.01); F02D 41/3836 (2013.01); F02M 37/0052 (2013.01); F02M 37/20 (2013.01); F02M 55/00 (2013.01); F02M 55/007 (2013.01); F02M 63/0225 (2013.01); F02D 2200/0606 (2013.01)
Citation (applicant)
- JP 2000282929 A 20001010 - DENSO CORP
- JP 2001082230 A 20010327 - DENSO CORP
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL LT LV MK RO
DOCDB simple family (publication)
EP 1321664 A2 20030625; EP 1321664 A3 20071031; EP 1321664 B1 20081022; DE 60229485 D1 20081204; JP 2003239823 A 20030827; JP 3901073 B2 20070404
DOCDB simple family (application)
EP 02027840 A 20021212; DE 60229485 T 20021212; JP 2002310524 A 20021025