EP 1441120 A2 20040728 - Pressure accumulation type fuel injection system
Title (en)
Pressure accumulation type fuel injection system
Title (de)
Druckspeicherkraftstoffeinspritzvorrichtung
Title (fr)
Dispositif d'injection de combustible à accumulateur de pression
Publication
Application
Priority
JP 2003017787 A 20030127
Abstract (en)
An engine control unit (ECU) (10) of a common rail type fuel injection system of an internal combustion engine (1) determines that an abnormality failure of a fuel supply pump (4) is generated, if an abnormally high-pressure state in which a common rail pressure exceeds a first threshold or a second threshold continues for a long time. The ECU (10) stops an operation of the engine (1) immediately or after an elapse of a predetermined period in accordance with a level of the abnormality failure. Thus, the abnormally high-pressure state in the common rail (2) can be avoided quickly and seizing and the like of the fuel supply pump (4) can be prevented. As a result, reliability and safety of the common rail type fuel injection system can be ensured.
IPC 1-7
IPC 8 full level
F02D 41/22 (2006.01); F02D 41/38 (2006.01); F02D 45/00 (2006.01); F02M 47/00 (2006.01); F02M 51/00 (2006.01)
CPC (source: EP)
F02D 31/009 (2013.01); F02D 41/08 (2013.01); F02D 41/221 (2013.01); F02D 41/3845 (2013.01); F02D 41/3863 (2013.01); F02D 2041/224 (2013.01); F02D 2041/227 (2013.01); F02D 2041/228 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/26 (2013.01)
Citation (applicant)
JP 2001295685 A 20011026 - DENSO CORP
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1441120 A2 20040728; EP 1441120 A3 20110413; EP 1441120 B1 20150909; EP 2799700 A1 20141105; EP 2799700 B1 20150722; JP 2004225673 A 20040812; JP 3972823 B2 20070905
DOCDB simple family (application)
EP 04001588 A 20040126; EP 14164422 A 20040126; JP 2003017787 A 20030127