Patent attributes
An electromagnetic fuel injection valve includes a coil assembly housed in a solenoid housing having a cylindrical magnetic metal coil case which integrally has, at one end side, a ring-shaped end wall portion and a press-fit cylindrical portion integrally connected to an inner periphery of the end wall portion so that the magnetic cylindrical body is press-fitted to the press-fit cylindrical portion and the press-fit cylindrical portion is welded to the magnetic cylindrical body, and a flange portion which is provided at a rear end of a fixed core. Wherein at least the solenoid housing is covered with a resin molded part and integrally has a power receiving coupler, the coil case being formed by a burring process to a central portion of a closed end of a bottomed cylindrical material having a circular opening with a smaller diameter than an outer diameter of the press-fit cylindrical portion.
