| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of maintaining a function of a humidifying means and driving a stable operation. <P>SOLUTION: The fuel cell system is provided with a fuel cell in which an oxidant gas and a fuel gas are supplied and power is generated by an electrochemical reaction between these gases, an oxidant gas supplying means 12 for supplying the oxidant gas to the fuel cell through an oxidant gas supplying passage, a fuel gas supplying means for supplying the fuel gas to the fuel cell through a fuel gas supplying passage, and a humidifying means which has a plurality of film bodies capable of moisture-exchanging through the outside and inside of the film and transports the moisture of an exhaust oxidant gas exhausted from the fuel cell to the oxidant gas in the oxidant gas supplying passage 20. The system is further provided with a bypass passage 23 bridging over the passage of the exhaust gas from the fuel cell and the oxidant gas supplying passage 20, a valve provided in the bypass passage 23, a controlling means for controlling an opening of the valve, and a temperature adjusting means capable of adjusting a temperature of the fuel cell uniformly, and the controlling means controls the opening of the valve the wider, the smaller the generated power of the fuel cell is. <P>COPYRIGHT: (C)2011,JPO&INPIT |
