| 摘要 |
PURPOSE:To compactly locate a cooler through utilizing a vacant space of a vehicle body and obtain an efficient cooler, by locating a radiator on the front side of an engine in the interior of a rear cover. CONSTITUTION:An engine 3 is made to be a water-cooled type one, and a power unit 11 is constituted by the engine 3 and a power transmitting part 10 for rear wheels 7 which is provided as one body therewith. A radiator 4 is fitted to a rising part 13a of a rear frame 13 by brackets 16 or the like in a space covered by the rear cover 2 on the front side of the engine 3. An introducing hole 5 for an airflow generated during running is provided in a louver door form at a front part 2a of the rear cover 2, the air flow is directed to the radiator 4 through the hole 5, is then passed around the engine 3, and is discharged backward through an airflow discharging hole 20 provided at a rear part 2b of the rear cover 2 or through an opening 21 provided at a lower part of the rear cover 2 or the like. |
