水泵由发动机曲轴上的皮带驱动，使冷却液在散热器与发动机水套之间循环流动。

The water pump, driven by a belt from the engine crankshaft, circulates the cooling liquid between the radiator and engine water jackets.

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水冷系统由发动机水套、节温器、水泵、散热器(水箱)、散热器盖、风扇、风扇驱动皮带和必要的软管组成。

A water-cooling system consists of the engine water jacket, thermostat, water pump, radiator, radiator cap, fan, fan drive belt and necessary hoses.

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发动机风扇通常安装在水泵轴上，由驱动水泵和发电机的同一条皮带驱动。

The engine fan is usually mounted on the water pump shaft and is driven by the same belt that drives the pump and the generator.

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