Patent ID: 7275732

Claim:
A solenoid-operated valve for discharging a reaction gas and/or residual water from fuel cells, comprising: a valve housing including a bottomed first hollow cylindrical portion having an inlet port for introducing the reaction gas and/or residual water, and a second hollow cylindrical portion projecting coaxially from an end of said first hollow cylindrical portion and having an outlet port for discharging the reaction gas and/or residual water; a solenoid housing coupled to said valve housing; a solenoid disposed in said solenoid housing, said solenoid being energizable by an electric current supplied thereto; a fixing member disposed in said solenoid; a movable member disposed in confronting relation to said fixing member, said movable member being displaceable axially when said solenoid is energized; and a valve head comprising a shaft coupled to said movable member and a valve being seated on or unseated from a valve seat, said valve comprising; a large-diameter portion having a diameter greater than said shaft, said large-diameter portion being disposed on an end of said shaft; and a resilient member mounted in surrounding relation to said large-diameter portion, said resilient member being made of an elastic material, wherein said valve head is seated on or unseated from said valve seat in said valve housing in accordance with displacement of said movable member; wherein said large-diameter portion has a through hole defined therein and extending in a direction in which said valve is displaceable, said resilient member being integrally combined with said large-diameter portion through said through hole.