| 摘要 |
PURPOSE:To prevent the exhaust hot air from streaming against the rider of a motorcycle by furnishing a fan for cooling the radiator between the engine and radiator in such an arrangement that the stream direction of the cooling wind produced by said fan is oriented in the same direction as the advancing of the motorcycle. CONSTITUTION:A fan 2 for cooling the radiator 1 of a motorcycle is furnished between the engine E and the radiator 1 and driven at a revolving speed determined on the basis of measurements by a speedosensor 6 and thermosensor 7 when the engine is in the low speed operation or at a standstill, and at the same time, the engine temp. is over a certain specified value. The cooling wind produced by rotation of said cooling fan 2 is oriented in the same direction of advancing of the motorcycle, so that hot wind after cooling of the radiator will not stream directly against the rider on the seat. |
