AIR SHUT OFF VALVE FOR FUEL CELL ELECTRIC VEHICLE

摘要

PURPOSE: An air shut-off valve for a fuel cell electric vehicle is provided to smoothly suppress hydrogen fuel to a stack and to maintain air tightness by blocking hydrogen fuel when is not operated. CONSTITUTION: An air shut-off valve for a fuel cell electric vehicle comprises: a motor part(2) which is formed at the upper part thereof and includes a worm gear shaft and a motor; a body part(4) which is coupled with the lower part of the motor part and includes vertical channels, a low flow volume control unit and a high flow volume control unit, wherein the low flow volume control unit includes a first chamber and a low-flow-rate outlet(46) and the high flow volume control unit includes a second chamber and a high-flow-rate outlet(49); and a control device which is formed in the body part and selectively controls the supply of low flow rate or high flow rate through the operation by the power of the motor part.