| 主权项 |
1. A fuel injection valve comprising:
a housing; a holder in which a core is fixed to an end portion in an axis direction; a solenoid which is installed between an inner circumference surface of the housing and the an outer circumference surface of the core; a cap which is welded and fixed to the housing and the core in a state where the solenoid is installed; an armature which is faced to an end portion in an axis direction of the core so as to be arranged, and is held at an inner circumference surface of the holder in a state where the armature is freely slid in an axis direction; a valve portion which is fixed to the armature, and can be seated to or separated from a valve washer which is provided at the holder; a spring which constantly biases the armature in a direction where the armature is separated from the end portion in the axis direction of the core; and an electrode terminal which is arranged at the outside of the housing so as to be connected to the solenoid, in a state where, when an energization for the solenoid is interrupted, the armature is separated from the core by the spring, and the valve portion is seated to the valve washer so as to stop an injection of fuel, and when an energization for the solenoid is performed, a magnetic flux, which is generated in the solenoid, is passed from the core through a magnetic passage which includes the armature, the housing, and the cap, whereby the armature is aspirated by the core so as to be shifted in a direction of the core, and the valve portion is separated from the valve washer so as to inject the fuel; wherein the holder is press-inserted to the housing so as to be fixed to the housing; and the cap includes a notch portion for notching an annular portion, and is arranged in such a way that an inner circumference surface of the cap is faced to the outer circumference surface of the core via a gap; and the electrode terminal is connected to a terminal of the solenoid via the notch portion of the cap. |
