EP 1747370 B1 20100317 - FUEL-INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL-INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
Title (de)
KRAFTSTOFFEINSPRITZVENTIL FÜR BRENNKRAFTMASCHINEN
Title (fr)
SOUPAPE D'INJECTION DE CARBURANT DESTINEE A DES MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- EP 2005050201 W 20050119
- DE 102004015360 A 20040330
Abstract (en)
[origin: US2007290075A1] A fuel injection valve, having an outer valve needle cooperating with a valve seat for opening and closing at least one outer injection opening, an inner valve needle disposed in the outer valve needle and cooperating with the valve seat for opening and closing at least one inner injection opening. The fuel pressure in a control chamber that can be filled with fuel under pressure acts on the outer valve needle and the inner valve needle in such a way that a closing force in the direction of the valve seat is exerted on the inner valve needle and the outer valve needle. An inner pressure face disposed on the inner valve needle and a shoulder is disposed on the outer valve needle, which each, on being subjected to pressure, exert a hydraulic opening force, oriented counter to the closing force, on the inner valve needle and the outer valve needle. The outer valve needle is at least partly surrounded by an inflow chamber, in which fuel under pressure is always present, and the inner pressure face and the outer pressure face are always subjected to the fuel of the inflow chamber.
IPC 8 full level
F02M 47/02 (2006.01); F02M 45/08 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 45/086 (2013.01 - EP US); F02M 47/027 (2013.01 - EP US); F02M 2200/46 (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 IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005095785 A1 20051013; AT E461362 T1 20100415; CN 1938513 A 20070328; DE 102004015360 A1 20051020; DE 502005009231 D1 20100429; EP 1747370 A1 20070131; EP 1747370 B1 20100317; JP 2007530862 A 20071101; US 2007290075 A1 20071220
DOCDB simple family (application)
EP 2005050201 W 20050119; AT 05701547 T 20050119; CN 200580010407 A 20050119; DE 102004015360 A 20040330; DE 502005009231 T 20050119; EP 05701547 A 20050119; JP 2007505525 A 20050119; US 59415005 A 20050119