| 摘要 |
PURPOSE: To enlarge a clearance between a fan and a radiator and heighten the ventilating speed of air so as to improve an air current and engine noise. CONSTITUTION: Since a stay 14 is provided between a radiator 2 and a fan 15, the stay 14 and a motor supported by the stay 14 are kept away from an engine even if enlarging a clearance C2 between the radiator 2 and the fan 15. The ventilating speed of the radiator 2 is thereby heightend to improve radiating performance. The fan 15 gets close to the engine by the enlarged part of the clearance C2 , but the fan 15 itself is a rotor and is capable of self- cooling even if receiving radiant heat from the engine, so that there is no need to form the fan 15 of expensive heat resistant material.
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