Patent ID: 7458531

Claim:
A fuel injection valve comprising: a valve body forming a fuel passage therein; a valve seat provided in the fuel passage; a valve element adapted to sit on and leave the valve seat; a nozzle hole formed downstream of the valve seat to inject fuel which is fed from the fuel passage; an electromagnetic drive section which generates a driving force for attracting the valve element magnetically; and a holding member surrounding and holding, on one end side thereof, at least a partial area of an opposite-to-nozzle-hole-side end face portion of the valve element located on the side opposite to the nozzle hole, the holding member surrounding and holding, on an opposite end side thereof, a predetermined surface area of a constant position holding portion which is held at a predetermined position without being influenced by the pressure of fuel flowing through the fuel passage and irrespective of movement of the valve element, the holding member providing an elastic connection between mutually opposed end faces of the opposite-to-nozzle-hole-side end face portion and the constant position holding portion, an internal area of the holding member surrounded between the partial area on the one end side and the predetermined surface area on the opposite end side being shut off so as not to be influenced by the pressure of fuel present around the internal area, wherein the holding member is a tubular receptacle which connects an end portion of the valve element opposite to the valve seat and an end portion of the electromagnetic drive section opposite to said end portion with each other so as to permit axial expansion and contraction.