| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell device capable of expediting start-up of a fuel cell even after its shuts down for a long time by controlling a fuel supply in accordance with drying of a fuel battery cell and preventing dryness of the fuel battery cell. <P>SOLUTION: The fuel cell can be prevented from being dried by continuing to supply a very little amount of fuel while closing a sucking/exhausting port so that a cell voltage V can be maintained at a vicinity of a threshold voltage VT by checking the cell voltage V of the fuel cell in a state of the fuel cell being shutdown (the sucking/exhausting port of the fuel cell is closed and no fuel supplied). In case of (A), an ON/OFF supply of a small amount of fuel F1 is repeated and in case of (B), a supply of a small amount of fuel F2 is continued, and in case of (C), irrespective of the cell voltage V, a supply of a small amount of fuel F3 is continued from the beginning. The threshold voltage VT is a voltage decided in an experiment or the like by a relation with a starting-up time of a power generation output of the fuel battery cell at a time power generation is started with a cell voltage V changeable during a power generation shutdown as a parameter. <P>COPYRIGHT: (C)2010,JPO&INPIT |
