EP 1963659 B1 20151223 - FUEL INJECTOR HAVING A DIRECTLY ACTUABLE INJECTION VALVE ELEMENT
Title (en)
FUEL INJECTOR HAVING A DIRECTLY ACTUABLE INJECTION VALVE ELEMENT
Title (de)
KRAFTSTOFFINJEKTOR MIT DIREKT BETÄTIGBAREM EINSPRITZVENTILGLIED
Title (fr)
INJECTEUR DE CARBURANT DOTE D'UN ORGANE DE SOUPAPE D'INJECTION A ACTIONNEMENT DIRECT
Publication
Application
Priority
- EP 2006067428 W 20061016
- DE 102005059169 A 20051212
Abstract (en)
[origin: WO2007068518A1] A fuel injector for an internal combustion engine is proposed having a directly actuable injection valve element. The fuel injector has a nozzle needle (13), axially guided in a nozzle body (12), and an actuator (20) accommodated in an injector housing (10), wherein the nozzle needle (13) is connected to a coupling piston (34) on the nozzle-needle side and the actuator (20) is connected to a coupling piston (21) on the actuator side. The coupling piston (21) on the actuator side acts on a coupling space (32) and the coupling piston (35) on the nozzle-needle side acts on a control space (38), wherein the nozzle needle (13) is lifted from a nozzle-needle sealing seat (14) as a function of the pressure in the control space (38). Provided between injector housing (10) and nozzle body (12) is an intermediate plate (40) having a passage (50) which hydraulically connects the coupling space (32) to the control space (38). The passage (50) contains a hydraulic choke (51) which has at least two sections (52, 53) having different cross sections of flow, wherein the section (52) having the smaller cross section of flow faces the coupling space (32) and the section (53) having the larger cross section of flow faces the control space (38).
IPC 8 full level
F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 47/02 (2013.01 - EP US); F02M 51/0603 (2013.01 - EP US); F02M 2547/001 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005059169 A1 20070614; CN 101331312 A 20081224; CN 101331312 B 20110525; EP 1963659 A1 20080903; EP 1963659 B1 20151223; JP 2009518586 A 20090507; JP 4898830 B2 20120321; US 2008302887 A1 20081211; US 7926737 B2 20110419; WO 2007068518 A1 20070621
DOCDB simple family (application)
DE 102005059169 A 20051212; CN 200680046763 A 20061016; EP 06807287 A 20061016; EP 2006067428 W 20061016; JP 2008544907 A 20061016; US 9648306 A 20061016