INTEGRATED VALVE FOR FUEL CELL STACK

摘要

PURPOSE: An integrated valve for a fuel cell stack is provided to prevent catalytic degradation within a stack, to improve durability of a stack and cold starting property, and to reduce the number of parts. CONSTITUTION: A valve for a fuel cell stack comprises such that an air blocking valve(10) and a bypass valve(20) are integrated. The air blocking valve blocks air from flowing into an anode in shut down of a fuel battery. The bypass valve combines an air blocking function while being used for dry gas purge. The air blocking valve and bypass valve are connected in a coaxial in order to enable simultaneous opening and closing.