| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell power generator for reliably preventing freezing, by avoiding damage of a water circuit and a part by freezing, when becoming a further lower temperature environment than the limit temperature (the lower limit temperature) capable of freezing-preventive operation. <P>SOLUTION: The fuel cell power generator can avoid the damage of a water passage and the part by the freezing, by forcibly draining water in at least one passage of a cooling water circulating passage 113, a water collecting passage 109 and a mutual circulating passage 117, before the freezing starts by elapsed time of becoming the limit temperature or smaller and a lowering speed of the detecting temperature, when becoming the further lower temperature environment than the limit temperature (the lower limit temperature) capable of the freezing-preventive operation, by having a control means for performing draining operation of the water in at least any one passage of the cooling water-circulating passage 113, the water collecting passage 109 and the mutual circulating passage 117 as the freezing preventive operation, when a temperature-detecting means 10 detects the temperature of a second threshold value or smaller being a first threshold value or smaller for a predetermined time. <P>COPYRIGHT: (C)2011,JPO&INPIT |
