| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform a high-precision control over a degree of opening of a fluid passage for discharged gas of a fuel cell and stabilize a generated power of the fuel cell vehicle. <P>SOLUTION: A discharging means of a fuel cell motorcycle 10 is provided with a back pressure valve 58 for adjusting a pressure of discharged gas. The back pressure valve 58 is constituted of a body 113 being applied as a base and comprises a discoid butterfly valve 128 connected to a fluid passage 124 of circular crosssection passing through the body 123 and to a valve shaft 126 so as to open or close the fluid passage 124, a brushless motor 130 acting as a rotational driving source of the butterfly valve 128 and a deceleration mechanism 132 composed of a plurality of gears for decelerating the rotation of an output shaft 130a of the brushless motor 130 and transmitting it to the valve shaft 126. A rotary encoder 134 for outputting a pulse signal indicating an amount of rotation is connected to the output shaft 130a. <P>COPYRIGHT: (C)2007,JPO&INPIT |
