Global Patent Index - EP 1692393 B1

EP 1692393 B1 20070725 - INJECTOR USED TO INJECT FUEL INTO INTERNAL COMBUSTION CHAMBERS IN INTERNAL COMBUSTION ENGINES, PARTICULARLY, A PIEZO-ACTUATOR CONTROLLED COMMON-RAIL-INJECTOR

Title (en)

INJECTOR USED TO INJECT FUEL INTO INTERNAL COMBUSTION CHAMBERS IN INTERNAL COMBUSTION ENGINES, PARTICULARLY, A PIEZO-ACTUATOR CONTROLLED COMMON-RAIL-INJECTOR

Title (de)

INJEKTOR ZUR EINSPRITZUNG VON KRAFTSTOFF IN BRENNRÄUME VON BRENNKRAFTMASCHINEN, INSBESONDERE PIEZOAKTORGESTEUERTER COMMON-RAIL-INJEKTOR

Title (fr)

INJECTEUR DESTINE A L'INJECTION DE CARBURANT DANS LES CHAMBRES DE COMBUSTION DE MOTEURS A COMBUSTION INTERNE, NOTAMMENT INJECTEUR A PRESSION MODULEE (COMMON-RAIL) COMMANDE PAR UN ACTIONNEUR PIEZO-ELECTRIQUE

Publication

EP 1692393 B1 20070725 (DE)

Application

EP 04786749 A 20040909

Priority

  • DE 2004002028 W 20040909
  • DE 10353169 A 20031114

Abstract (en)

[origin: US2007170286A1] A common rail injector for an internal combustion engines has control means including a piezoelectric actuator deposed in an injector body and via at least one booster piston actuates a control valve received in a valve plate. Also provided are a nozzle body having a nozzle outlet on its free end toward the combustion chamber; a nozzle needle located axially movably and actuatably in a longitudinal recess of the nozzle body; a throttle disk, closing off the rear end (remote from the nozzle outlet) of the longitudinal recess and located between the nozzle body and the control valve, which throttle disk forms an opening stop for the nozzle needle and cooperates with the rear end face of the nozzle needle and thus limits the opening stroke of the nozzle needle; and a control chamber between the rear nozzle needle end face and the throttle disk, which chamber is in hydraulic communication with a pressure connection serving to deliver fuel. A substantial special feature is that a cylindrical retaining body is disposed in the injector body and receives the booster piston or pistons and the valve plate that contains the control valve.

IPC 8 full level

F02M 59/46 (2006.01); F02M 47/02 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP KR US)

F02M 47/02 (2013.01 - KR); F02M 47/027 (2013.01 - EP US); F02M 59/46 (2013.01 - KR); F02M 63/00 (2013.01 - KR); F02M 63/0026 (2013.01 - EP US); F02M 63/0045 (2013.01 - EP US); F02M 2200/703 (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 IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005050003 A1 20050602; AT E368177 T1 20070815; BR PI0416579 A 20070130; CN 1878949 A 20061213; DE 10353169 A1 20050616; DE 502004004465 D1 20070906; EP 1692393 A1 20060823; EP 1692393 B1 20070725; JP 2007510849 A 20070426; KR 20060120105 A 20061124; US 2007170286 A1 20070726

DOCDB simple family (application)

DE 2004002028 W 20040909; AT 04786749 T 20040909; BR PI0416579 A 20040909; CN 200480033400 A 20040909; DE 10353169 A 20031114; DE 502004004465 T 20040909; EP 04786749 A 20040909; JP 2006538640 A 20040909; KR 20067009230 A 20060512; US 57890404 A 20040909