| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling-wind inlet structure of a V-belt-type stepless transmission capable of reducing entrance of dust, etc. and preventing a vehicle body from bulging to a lateral side and to above a power unit. <P>SOLUTION: In a power unit 5 having the V-belt-type stepless transmission 30 in a lateral side of a rear wheel 6 of the vehicle body 1, a cooling-wind inlet structure of the V-belt-type stepless transmission is characterized in that: a cylinder part 52 of an internal combustion engine 2 covered with a cooling shroud 65 is provided from a crankshaft 51, to which a drive pulley 33 of the V-belt-type stepless transmission is attached, toward the front of the vehicle body; a cooling-wind passage 90, which guides cooling winds to a lateral side of a cooling fan 93 provided on the outer surface of the drive pulley, is formed in and communicates with a cooling-wind duct 80 extending toward the front of the vehicle body and connected to a transmission chamber 32 housing the V-belt-type stepless transmission; the upstream-side of the cooling-wind duct is provided with a cooling-wind inlet 82 bent upward along a lateral surface of the cooling shroud and then bent backward in a U shape to be directed to the rear of the vehicle body. <P>COPYRIGHT: (C)2012,JPO&INPIT |
