EP 1606507 A1 20051221 - CONTACT DEVICE FOR AN INJECTOR OF A FUEL-INJECTION SYSTEM, IN ADDITION TO AN INJECTOR COMPRISING A CONTACT DEVICE
Title (en)
CONTACT DEVICE FOR AN INJECTOR OF A FUEL-INJECTION SYSTEM, IN ADDITION TO AN INJECTOR COMPRISING A CONTACT DEVICE
Title (de)
KONTAKTIERVORRICHTUNG FÜR EINEN INJEKTOR EINES EINSPRITZSYSTEMS FÜR DIE KRAFTSTOFFEINSPRITZUNG SOWIE INJEKTOR MIT EINER KONTAKTIERVORRICHTUNG
Title (fr)
DISPOSITIF DE CONTACT D'UN INJECTEUR D'UN SYSTEME D'INJECTION DESTINE A L'INJECTION DE CARBURANT ET INJECTEUR EQUIPE DE CE DISPOSITIF DE CONTACT
Publication
Application
Priority
- EP 2004002770 W 20040317
- DE 10313623 A 20030326
Abstract (en)
[origin: WO2004085826A1] A common problem in modern common rail injection systems, in particular those with a rapid injection rate, is that undesirable dispersions occur for the quantity of fuel that is to be injected. A fundamental cause is that it is never known at exactly what point the valve needle (3) rests on its valve seat (37) or when the upper section of the valve needle (3) strikes the second stop. The invention thus provides a contact device for an injector (13) of an injection system, said device being used to monitor the position of the valve needle (3) on its valve seat (37) or its second stop on a first housing part (1). The electric contact (31;45) and the current supply (electric line 34) are located outside the fuel-filled high-pressure zone of the injector (13), thus preventing any sealing problems of the injector (13).
IPC 1-7
IPC 8 full level
F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 63/02 (2006.01); F02M 65/00 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 47/027 (2013.01); F02M 51/005 (2013.01); F02M 63/0225 (2013.01); F02M 65/005 (2013.01); F02M 2200/245 (2013.01)
Citation (search report)
See references of WO 2004085826A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2004085826 A1 20041007; DE 10313623 A1 20041021; EP 1606507 A1 20051221
DOCDB simple family (application)
EP 2004002770 W 20040317; DE 10313623 A 20030326; EP 04721158 A 20040317