| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely remove abrasion powder produced by operation of a centrifugal clutch and suitably cool the centrifugal clutch and a continuously variable transmission. <P>SOLUTION: In the power unit of a motorcycle in which an engine and a power transmission device equipped with the continuously variable transmission 16 and the centrifugal clutch 17 are unified and the power of the engine is transmitted to a rear wheel through the power transmission device, the centrifugal clutch 17 is arranged axially adjacent to a movable face 25B of a driven pulley 25 of the continuously variable transmission 16 and an introduction fan 46 for introducing an air flow into the centrifugal clutch 17 is arranged inside the centrifugal clutch 17. <P>COPYRIGHT: (C)2011,JPO&INPIT |
