Global Patent Index - EP 1434937 A1

EP 1434937 A1 20040707 - FUEL INJECTION VALVE

Title (en)

FUEL INJECTION VALVE

Title (de)

BRENNSTOFFEINSPRITZVENTIL

Title (fr)

SOUPAPE D'INJECTION DE CARBURANT

Publication

EP 1434937 A1 20040707 (DE)

Application

EP 02769884 A 20020822

Priority

  • DE 0203070 W 20020822
  • DE 10148594 A 20011002

Abstract (en)

[origin: DE10148594A1] The device has a piezoelectric or magnetostrictive actuator that operates a valve closure body via a hydraulic coupler with a sender piston and a pick-up piston in bores in a guide sleeve with a hydraulic fluid filled chamber between them. A corrugated tube (27b) around the guide sleeve (33) has sealed connections to the pistons (24,34) and seals a storage chamber (37) for the hydraulic fluid with respect to an enclosing fuel chamber (30).

IPC 1-7

F02M 51/06; F02M 61/08; F02M 61/16

IPC 8 full level

F02M 51/00 (2006.01); F02M 51/06 (2006.01); F02M 61/08 (2006.01); F02M 61/16 (2006.01)

CPC (source: EP US)

F02M 51/0603 (2013.01 - EP US); F02M 61/08 (2013.01 - EP US); F02M 61/167 (2013.01 - EP US); F02M 2200/16 (2013.01 - EP US); F02M 2200/703 (2013.01 - EP US); F02M 2200/707 (2013.01 - EP US)

Citation (search report)

See references of WO 03031799A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

DE 10148594 A1 20030410; DE 50209939 D1 20070524; EP 1434937 A1 20040707; EP 1434937 B1 20070411; JP 2005504919 A 20050217; JP 4227521 B2 20090218; US 2004079815 A1 20040429; US 7066399 B2 20060627; WO 03031799 A1 20030417

DOCDB simple family (application)

DE 10148594 A 20011002; DE 0203070 W 20020822; DE 50209939 T 20020822; EP 02769884 A 20020822; JP 2003534750 A 20020822; US 43334703 A 20031120