EP 1789675 A1 20070530 - METHOD AND DEVICE FOR CHARACTERISING A RETURN STROKE OF INJECTORS
Title (en)
METHOD AND DEVICE FOR CHARACTERISING A RETURN STROKE OF INJECTORS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR LEERHUBERKENNUNG VON INJEKTOREN
Title (fr)
PROCEDE ET DISPOSITIF DE DETECTION DE COURSE A VIDE D'INJECTEURS
Publication
Application
Priority
- EP 2005053554 W 20050721
- DE 102004044450 A 20040914
Abstract (en)
[origin: WO2006029931A1] The invention relates to a method and device for characterising the return stroke of injectors, in particular piezo-injectors of an internal combustion engine provided with a common rail system. When the internal combustion engine is switched off, a constant pressure is dropped in the rail, thereby making it possible to measure the rail pressure and to adjust the injectors by corresponding power. The actuating power is increased until a discontinuity in a temporal progression of rail pressure occurs. The actuating energy applied for said state and a pressure available in the make it possible to measure the return stroke of corresponding injector.
IPC 8 full level
F02M 65/00 (2006.01)
CPC (source: EP US)
F02D 41/042 (2013.01 - EP US); F02D 41/2096 (2013.01 - EP US); F02D 41/2438 (2013.01 - EP US); F02D 41/247 (2013.01 - EP US); F02D 41/3809 (2013.01 - EP US); F02D 2200/0602 (2013.01 - EP US); F02M 65/005 (2013.01 - EP US)
Citation (search report)
See references of WO 2006029931A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2006029931 A1 20060323; CN 100504061 C 20090624; CN 101018945 A 20070815; DE 102004044450 B3 20060406; DE 502005004537 D1 20080807; EP 1789675 A1 20070530; EP 1789675 B1 20080625; US 2007204832 A1 20070906; US 7406861 B2 20080805
DOCDB simple family (application)
EP 2005053554 W 20050721; CN 200580030782 A 20050721; DE 102004044450 A 20040914; DE 502005004537 T 20050721; EP 05777858 A 20050721; US 68595707 A 20070314