Patent ID: 6840504

Claim:
A high-pressure switching valve device comprising: a coil generating a magnetic attraction force by an electric current; a fixed core in the center of said coil; a high-pressure switching valve having a plunger at the opposite position of said fixed core and having a return spring between said fixed core and said plunger; and a high-pressure fluid channel connecting a high pressure side channel and a low pressure side channel via a valve seat and opening and closing said valve seat by said high-pressure switching valve; wherein said switching valve device comprises a valve main body provided on said plunger abutted on said valve seat, and a seal member provided on an outer peripheral surface of said valve main body tip end portion, and pressed to contact with an end face of said valve seat; and said seal member and said valve main body are located on the high pressure side channel, with no portion of said seal member being located on the low pressure side channel when the switching valve is in a closed position.