Patent ID: 7296781

Claim:
An electromagnetic fuel injection valve comprising: a magnetic cylindrical body which defines a part of a valve housing having a valve seat at a front end portion; a cylindrical fixed core connected at a front portion thereof to the magnetic cylindrical body via a coaxial non-magnetic cylindrical body; a solenoid housing including a cylindrical magnetic metal coil case integrally having, 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 wherein 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 protrudes radially outward from a rear end of the fixed core and is directly connected to the other end of the coil case; a coil assembly surrounding a rear portion of the magnetic cylindrical body, the non-magnetic cylindrical body and the fixed core, wherein the coil assembly is housed in the solenoid housing; and a resin molded part covering at least the solenoid housing, wherein the resin molded part is made of a synthetic resin and integrally includes a power receiving coupler which faces a power-receiving-side connecting terminal connected to a coil of the coil assembly, wherein the coil case is 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.