| 摘要 |
Apparatus for supplying cooling air to the engine of a small vehicle wherein the engine includes a variable speed belt drive having a rotatable drive member that is connected to be rotated by the engine drive shaft. The air supply is driven by the drive member, and includes fan blades attached to the drive member, a casing around the blades, and ducts for conveying the cooling air to the engine. The engine may be either the air-cooled or the liquid-cooled type. The drive member moves axially in response to engine speed variations, and the air supply is arranged to vary the quantity of cooling air in response to variations in the engine speed and the position of the drive member.
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