Global Patent Index - EP 0952333 B1

EP 0952333 B1 2004-06-23 - Fuel injector for fuel injection systems

Title (en)

Fuel injector for fuel injection systems

Title (de)

Einspritzventil für Kraftstoffeinspritzsysteme

Title (fr)

Injecteur à combustible pour systèmes d'injection de combustible


EP 0952333 B1 (DE)


EP 99106924 A


DE 19817320 A

Abstract (en)

[origin: EP0952333A2] The valve has an injector housing containing a piezo stack, a valve housing with a movable valve closure device with a nozzle needle (8) actuated by the piezo stack, a restoring device for the valve closing device and a displacement piston actuated by the piezo stack followed by a control piston which increases the displacement distance. Hydraulic sequential gain is achieved by a working piston that actuates the nozzle needle and increases the actuation force.

IPC 1-7 (main, further and additional classification)

F02M 51/06; F02M 47/00

IPC 8 full level (invention and additional information)

F02M 51/06 (2006.01); F02M 55/00 (2006.01); F02M 61/08 (2006.01)

CPC (invention and additional information)

F02M 55/002 (2013.01); F02M 51/0603 (2013.01); F02M 61/08 (2013.01); F02M 2200/703 (2013.01)

Designated contracting state (EPC)


DOCDB simple family

EP 0952333 A2 19991027; EP 0952333 A3 20020213; EP 0952333 B1 20040623; DE 19817320 C1 19991111; US 6302333 B1 20011016