EP 1441120 A3 20110413 - 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)
[origin: EP1441120A2] 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 8 full level
F02D 41/38 (2006.01); F02M 47/00 (2006.01); F02D 41/22 (2006.01); F02D 45/00 (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 (search report)
- [X] DE 19623150 A1 19961212 - NIPPON DENSO CO [JP]
- [A] DE 19604552 A1 19970814 - BOSCH GMBH ROBERT [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated extension state (EPC)
AL LT LV MK
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