| 摘要 |
PURPOSE:To suppress leakage of oxidizing gas from a sealing gasket of a fuel cell by adjusting a position of a partitioning plate, provided in a residual fuel duct, through a partitioning plate driving gear by a drive control unit so that a pressure of fuel gas in the fuel duct can be increased to the pressure suited for a pressure in an oxidizing gas flow passage. CONSTITUTION:Detection signals, respectively output from a fuel gas pressure detector 55 arranged in an oxidizing gas flow passage 41a and an oxidizing gas pressure detector 56 arranged in a fuel duct 12, are input to a drive control unit 54 which feeds a pressure of liquid to a gate valve driving gear 53 through a switching valve. The gate valve driving gear 53, which drives a partitioning plate 51 for opening/closing a residual fuel gas duct 52, adjusts a position of the gate valve 51, so that a pressure of the fuel gas pressure detector 55 is generated equal to a pressure of the oxidizing gas pressure detector 56, to minimize leakage to the fuel duct 12 of oxidizing gas 4 from a sealing gasket 8 of a fuel cell 9. In this way, a fuel gas pressure in the fuel duct can be increased to a value suited for a pressure of the oxidizing gas flow passage. |
