Patent ID: 7383819

Claim:
An electromagnetic valve device comprising a platy armature connected to an end of a valve body for opening and closing a fluid passage, a solenoid device for attracting said armature by attraction force generated by energizing a solenoid coil of said solenoid device when allowing said valve body to close said fluid passage and releasing the attraction force by de-enegizing the solenoid coil when allowing said valve body to be returned to an opening position at which the valve body opens said fluid passage, and a return spring for pushing said valve body to said opening position, wherein through holes are drilled in said armature penetrating from a front surface thereof facing an end surface of said solenoid device to a rear surface thereof, a thin plate valve is attached to said rear surface of said armature to cover said holes, whereby when said armature is attracted by said solenoid device said thin plate valve is bent to open said through holes by pressure exerting on said thin plate valve through said holes from a small gap space between said end face of said solenoid valve device and said front surface of said armature so that said small gap space is brought into communication with an armature room where said armature is located, and when said armature returns to said opening position pushed by said return spring said thin plate valve recovers its original position to close said holes.