EP 1611345 A1 20060104 - VACUUM RINSING OF AN INJECTOR FOR INTERNAL COMBUSTION ENGINES
Title (en)
VACUUM RINSING OF AN INJECTOR FOR INTERNAL COMBUSTION ENGINES
Title (de)
VAKUUMSPÜLEN EINES INJEKTORS FÜR VERBRENNUNGSMOTOREN
Title (fr)
RINCAGE A VIDE D'UN INJECTEUR DESTINE A DES MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0303236 W 20030929
- DE 10314454 A 20030330
Abstract (en)
[origin: WO2004088125A1] The invention relates to a method for preparing for use a fuel injection valve for an internal combustion engine, for example for a system of common rail injectors which is at least partially filled with air at a starting moment and is supplied with a liquid substance by means of a connection normally used for fuel supply. The inventive method is characterised in that the internal chamber of the injection valve is brought to a pressure which is lower that the operation pressure in such a way that air bubbles increase the volume thereof with respect to a regular operation volume, and the substance inside the chamber is evacuated at a substantially constant low pressure, said method can be selectively repeated. Said method makes it possible to quickly prepare the injector for operation, notwithstanding the presence of a gaseous air in the liquid substance at the beginning of the process. A corresponding device is also disclosed.
IPC 1-7
IPC 8 full level
F02M 47/02 (2006.01); F02M 65/00 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 65/00 (2013.01 - EP US); F02M 65/008 (2013.01 - EP US)
Citation (search report)
See references of WO 2004088125A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2004088125 A1 20041014; DE 10314454 A1 20041028; DE 10314454 B4 20090409; EP 1611345 A1 20060104; JP 2006514212 A 20060427; US 2006213485 A1 20060928
DOCDB simple family (application)
DE 0303236 W 20030929; DE 10314454 A 20030330; EP 03753329 A 20030929; JP 2004570021 A 20030929; US 55111605 A 20050928