| 摘要 |
The present invention relates to an air supply device for a fuel cell system and to a method for controlling pressure of an air blower, wherein the air supply device for a fuel cell system is composed to be able to increase the pressure of the air introduced to an air blower (120) under a low flux condition as well as under a high flux condition while maintaining the flux of air supplied to the fuel cell system so as to prevent the fuel cell system from drying, and inhibit the surge generation in the air blower (120). The air supply device for a fuel cell system comprises an air blower (120) supplying outside air with controlled influx by a flowmeter (100) to a stack (130) of a fuel cell; a bypass pipe (140) bypassing a part of the air discharged to the outlet of the air blower (120) toward the entrance of the air blower (120); and a bypass valve (150) installed on one side of the bypass pipe (140), and controlling the pressure of the air bypassing toward the entrance of the air blower (120). |
