论述了风冷发动机冷却风扇的试验法和用无因次特性系数法制取风扇特性曲线的方法。

This paper describes the methods of fan testing and making fan property curve by dimensionless characteristic coefficient for the cooling fan of air-cooled engines.

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对两套风冷系统进行了实验研究，给出了不同辐射器温度下散热器热流面温度及电池输出特性随风扇功率的变化曲线；

Meanwhile, the heat sink's heat-flux surface temperature variation curve with the fan power changes at different radiator temperature are given by the experiments of the two air cooling systems.

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