Patent ID: 8857743

Claim:
A fuel injection valve comprising: an armature that is repelled or attracted by a core, by de-energizing or energizing a coil; a needle that opens or closes a valve seat in accordance with a reciprocal travel of the armature; and a valve-closing spring that biases the needle so as to close the valve, when the coil is de-energized, wherein the valve-closing spring is disposed on the armature, and the needle and the armature are fixed in such a way that the needle can travel independently of the armature in an axis direction by a predetermined amount, and wherein a stepped portion is provided at a side surface of the needle, part of an end surface of the armature makes contact with the stepped portion, a stopper is provided in such a way that the armature is inserted between the stopper and the stepped portion, and the needle is press-fitted and welded in the stopper.