Patent ID: 7080819

Claim:
A fuel injection valve comprising: a valve body; a solenoid valve that includes a solenoid, which is filled with low-pressure oil, wherein the solenoid includes a valve device and a biasing means, the valve device includes a movable member that includes a flat-plate portion having an attracted face, the attracted face of the flat-plate portion contacts with the solenoid when the valve device is actuated by one of magnetic force generated by the solenoid and the biasing means, the attracted face of the flat-plate portion departs from the solenoid when the valve device is actuated by the other one of magnetic force generated by the solenoid and the biasing means, the flat-plate portion has an outer circumferential periphery that defines a plurality of notches through which low-pressure fuel flows into a space defined between the solenoid and the attracted face, the attracted face of the flat-plate portion defines an oil passage groove, through which a center portion of the attracted face communicates with an outer circumferential portion of the attracted face, so that low-pressure fuel is capable of flowing between the center portion of the attracted face and the outer circumferential portion of the attracted face through the oil passage groove, each notch has a deepest portion that is radially most recessed from the outer circumferential periphery of the flat-plate portion, and the oil passage groove is apart from the deepest portion of the notch.