EP 1654453 A1 20060510 - INJECTOR FOR FUEL INJECTION SYSTEMS OF COMBUSTION ENGINES, PARTICULARLY DIRECT INJECTION DIESEL ENGINES
Title (en)
INJECTOR FOR FUEL INJECTION SYSTEMS OF COMBUSTION ENGINES, PARTICULARLY DIRECT INJECTION DIESEL ENGINES
Title (de)
INJEKTOR FÜR KRAFTSTOFF-EINSPRITZSYSTEME VON BRENNKRAFTMASCHINEN, INSBESONDERE VON DIREKTEINSPRITZENDEN DIESELMOTOREN
Title (fr)
INJECTEUR POUR SYSTEMES D'INJECTION DE CARBURANT DE MOTEURS A COMBUSTION INTERNE, NOTAMMENT DE MOTEURS DIESEL A INJECTION DIRECTE
Publication
Application
Priority
- DE 2004001301 W 20040622
- DE 10336327 A 20030807
Abstract (en)
[origin: WO2005014995A1] An injector for fuel injection systems of combustion engines, particularly direct injection diesel engines, comprises a piezo actuator (16), which is placed inside an injector body (10) and which, via first spring means (35), is held in contact with the injector (10) and with a sleeve-like intensifier plunger (33). In addition, a nozzle body (20) is provided, which is connected to the injector body (10), has at least one nozzle discharge opening (26, 27), and inside of which a graduated (first) nozzle needle (21) is guided in an axially displaceable manner, and (second) spring means (54) are provided, which are placed inside the intensifier plunger (33) and which, together with the injection pressure acting on the rear side on the (first) nozzle needle (21), hold the (first) nozzle needle (21) in the closed position. In addition, the injector comprises an (outer) control space (47), which is formed at the nozzle needle-side end of the intensifier plunger (33), and which is connected, via at least one leakage gap, to a fuel supply (18) that is under injection pressure. The (first) nozzle needle (21) is displaced in the opening direction (36) by the fuel located inside the control space (47).
IPC 1-7
IPC 8 full level
F02M 45/08 (2006.01); F02M 51/06 (2006.01); F02M 61/18 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP KR US)
F02M 45/086 (2013.01 - EP KR US); F02M 51/0603 (2013.01 - EP KR US); F02M 61/18 (2013.01 - EP KR US); F02M 2200/215 (2013.01 - EP KR US); F02M 2200/46 (2013.01 - EP KR US); F02M 2200/704 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2005014995A1
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 PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005014995 A1 20050217; DE 10336327 A1 20050303; DE 10336327 B4 20160317; EP 1654453 A1 20060510; JP 2007506897 A 20070322; KR 20060060675 A 20060605; US 2008163852 A1 20080710
DOCDB simple family (application)
DE 2004001301 W 20040622; DE 10336327 A 20030807; EP 04738750 A 20040622; JP 2006517946 A 20040622; KR 20067002509 A 20060206; US 56712504 A 20040622