| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure a proper inlet water temperature in a fuel cell even in a service condition that a cooling water temperature significantly fluctuates. <P>SOLUTION: A cooling water outlet 1a and a radiator 3 of the fuel cell 1 are connected through a cooling water outlet passage 5, and a cooling water inlet 1b and the radiator 3 of the fuel cell 1 are connected through a cooling water inlet passage 7. The cooling water inlet passage 7 is provided with a thermal storage medium wherein a low temperature side latent heat storage material 19 having a phase change temperature lower than an inlet target water temperature of the fuel cell 1 and a high temperature side latent heat storage material 21 having a high phase change temperature are arranged in series, and a mixed water temperature sensor 37 detecting the inlet water temperature at the thermal storage medium. A cooling fan 11 blowing air to the radiator 3 and a three-way valve 15 are activated so that the inlet water temperature at the thermal storage medium is between phase change temperatures of the low temperature side and the high temperature side latent heat storage materials 19, 21. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
