| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress generation of condensed water and increase of power consumption in a fuel cell. <P>SOLUTION: In the case of pressurizing the inside of a fuel cell stack 1, valves 13, 14, 16 are made in an open state, and valves 17, 18, 19 are in a closed state, and fresh air is incorporated by a compressor 11 and supplied into the fuel cell stack 1. On the other hand, in the case of depressurizing the inside of the fuel cell stack 1 in order to decrease the dew point of an air pole 1a, by making the valves 13, 14, 16 to be in a closed state, and the valves 17, 18, 19 to be in an open state, fresh air is supplied into the fuel cell stack 1 by detouring a fresh air compressor 11, and the air discharged from the fuel cell stack 1 is incorporated by the fuel cell stack 1, and discharged outside. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
