| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent concentration of fuel gas in a fuel gas system from becoming uneven in supplying the fuel gas to a fuel cell during execution of intermittent operation control stopping power generation. <P>SOLUTION: The fuel cell system includes: the fuel cell 40 generating power by an electrochemical reaction between the fuel gas and oxidizing gas; a fuel gas supply part 71 supplying the fuel gas to the fuel gas system 72 including the fuel cell 40; a fuel gas circulation part 110 running an off-gas of the fuel gas from the fuel cell 40 to the fuel cell 40 through the fuel gas system 72; and a control part 10 controlling them. The control part 10 drives the fuel gas circulation part 110 in supplying the fuel gas in the fuel gas system 72 with a fuel gas amount dropped by the fuel gas supply part 71 during execution of the intermittent operation control stopping the power generation of the fuel cell 40. <P>COPYRIGHT: (C)2009,JPO&INPIT |
