| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel gas supply device setting time estimating the completion of opening of a fuel shut off valve without installing a pressure sensor in front and behind of the fuel shut off valve. <P>SOLUTION: The fuel gas supply device is equipped with: pressure detectors 14A, 14B, 14C installed on the downstream side of the fuel shut off valves 13A, 13B, 13C; a valve opening commanding means simultaneously supplying starting current to the fuel shut off valves 13A, 13B, 13C in the starting of supply of hydrogen gas; a valve opening time deciding means deciding the maximum valve opening time completing opening of the whole of the fuel shut off valves 13A, 13B, 13C based on pressure values P1, P2, P3 detected with the pressure detectors 14a, 14B, 14C in the starting of supply of the hydrogen gas; and a current changing over means changing over starting current being supplied to the fuel shut off valves 13A, 13B, 13C to holding current after the passage of the maximum valve opening time. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
