| 摘要 |
<P>PROBLEM TO BE SOLVED: To exhaust air in a cooling flow passage of a solid polymer fuel cell, and suppress cooling performance deterioration at the time of reduction of an amount of a cooling liquid flow at operating a fuel cell at a low load. <P>SOLUTION: Pulsations are given to a cooling liquid flow. At least a larger one of amplitude and frequency of the pulsations at the time of a small amount of the cooling liquid flow is made to be equal or more than those at the time of a large amount of the cooling liquid flow. The air in the cooling flow passage of the solid polymer fuel cell is exhausted, and cooling performance deterioration at the time of reduction of the amount of the cooling liquid flow at operating the fuel cell at a low load is suppressed. <P>COPYRIGHT: (C)2009,JPO&INPIT |
