| 摘要 |
<P>PROBLEM TO BE SOLVED: To aim at uniformity of humidity at every region of a cell in a simple structure by eliminating defects of relative humidity of air inlet side getting lower than that of air outlet side in a cell by the influence of water generated at power generation. <P>SOLUTION: For the fuel cell system having an air flow channel 101 and a cooling water flow channel 104 formed at an air side separator 100 of its fuel cell, a bypass outlet 107 is provided in the middle of the cooling water flow channel 104 for bypassing part of cooling water flowing in the cooling water flow channel 104, and an upstream region in the air flow channel 101 and that in the cooling water flow channel 107 are arranged in adjacency. A flow volume of the cooling water at an upstream of the bypass outlet 107 gets more than that at a downstream, so that a cooling capacity at the air inlet side of the cell gets higher than that at the air outlet side, resulting in fall of temperature and rise in relative humidity at the air inlet side. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
