Global Patent Index - EP 1434942 B1

EP 1434942 B1 20080227 - FUEL INJECTION VALVE

Title (en)

FUEL INJECTION VALVE

Title (de)

BRENNSTOFFEINSPRITZVENTIL

Title (fr)

SOUPAPE D'INJECTION DE CARBURANT

Publication

EP 1434942 B1 20080227 (DE)

Application

EP 02764554 A 20020823

Priority

  • DE 0203091 W 20020823
  • DE 10148824 A 20011004

Abstract (en)

[origin: US2004075000A1] A fuel injector (1) includes a magnetic coil (10), which cooperates with an armature (20) which, together with a valve needle (3) acted upon by a restoring spring (23), forms an axially movable valve part. A valve-closure member (4) which forms a sealing seat together with a valve-seat member (5), is provided at the valve needle (3). Furthermore, the fuel injector (1) includes an inner pole (13) and an outer pole (9) which form a magnetic circuit together with the magnetic coil (10), and a central fuel supply (16). A sleeve (21) is situated in the central fuel supply (16) of the fuel injector (1) in such a way that a flow route of the fuel through the fuel injector (1) is formed such with respect to length and diameter that the frequency of natural oscillations which are excited by the fuel flowing through the fuel injector (1), is adjusted to the closing intervals of the fuel injector (1).

IPC 8 full level

F02M 51/08 (2006.01); F02M 69/46 (2006.01); F02M 51/06 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP US)

F02M 51/0671 (2013.01 - EP US); F02M 69/465 (2013.01 - EP US); F02M 2200/31 (2013.01 - EP US)

Citation (examination)

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)

US 2004075000 A1 20040422; US 6935582 B2 20050830; AT E387579 T1 20080315; DE 10148824 A1 20030410; DE 50211796 D1 20080410; EP 1434942 A1 20040707; EP 1434942 B1 20080227; JP 2005504925 A 20050217; JP 4129232 B2 20080806; WO 03031808 A1 20030417

DOCDB simple family (application)

US 43372703 A 20031105; AT 02764554 T 20020823; DE 0203091 W 20020823; DE 10148824 A 20011004; DE 50211796 T 20020823; EP 02764554 A 20020823; JP 2003534759 A 20020823