Global Patent Index - EP 1395744 A1

EP 1395744 A1 20040310 - FUEL INJECTION DEVICE FOR COMBUSTION MOTORS, ESPECIALLY COMMON RAIL INJECTOR, FUEL SYSTEM AND INTERNAL COMBUSTION ENGINE

Title (en)

FUEL INJECTION DEVICE FOR COMBUSTION MOTORS, ESPECIALLY COMMON RAIL INJECTOR, FUEL SYSTEM AND INTERNAL COMBUSTION ENGINE

Title (de)

KRAFTSTOFF-EINSPRITZVORRICHTUNG FÜR BRENNKRAFTMASCHINEN, INSBESONDERE COMMON-RAIL-INJEKTOR, SOWIE KRAFTSTOFFSYSTEM UND BRENNKRAFTMASCHINE

Title (fr)

APPAREIL D'INJECTION DE CARBURANT POUR MOTEURS A COMBUSTION, EN PARTICULIER INJECTEUR DE TYPE COMMON RAIL, SYSTEME D'ALIMENTATION EN CARBURANT ET MOTEUR A COMBUSTION

Publication

EP 1395744 A1 20040310 (DE)

Application

EP 02742681 A 20020418

Priority

  • DE 0201435 W 20020418
  • DE 10122256 A 20010508

Abstract (en)

[origin: WO02090756A1] The invention relates to a fuel injection device (10) used in internal combustion engines (94). Said device comprises a body (12) having an injection end (18). A recess (20) is formed in the body (12). An axially mobile valve element (24) which is located in the recess (20) co-operates with a valve seat and has, opposite the injection end (18), a pressure surface (36) which axially delimits a control chamber (38) which is itself radially delimited by a sleeve member (40). A device (55) prestresses the sleeve element (40) in a direction of a first body part (16) as well as the valve member (24) towards the injection end (18). The aim of the invention is to improve the operating precision of this fuel injecting device (10). For that purpose, the device (55) comprises separate prestress devices (46, 50) among which one pretress device (50) impinges upon the valve member (24) and another prestress device (46) impinges upon the sleeve member (40).

IPC 1-7

F02M 47/02

IPC 8 full level

F02M 61/20 (2006.01); F02M 47/00 (2006.01); F02M 47/02 (2006.01)

CPC (source: EP)

F02M 47/027 (2013.01)

Citation (search report)

See references of WO 02090756A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 02090756 A1 20021114; DE 10122256 A1 20021121; DE 50206317 D1 20060518; EP 1395744 A1 20040310; EP 1395744 B1 20060405; JP 2004519599 A 20040702; JP 4130777 B2 20080806; US 2004025842 A1 20040212; US 6928985 B2 20050816

DOCDB simple family (application)

DE 0201435 W 20020418; DE 10122256 A 20010508; DE 50206317 T 20020418; EP 02742681 A 20020418; JP 2002587793 A 20020418; US 33237603 A 20030801