The front end of the crankshaft carries three devices.the gear or sprocket that drives the camshaft,the vibration damper.and the fan belt pulley.The pulley drives the engine fan,water pump,and generator with a V belt.

• "在曲轴的前端有三个装置:驱动凸轮轴的齿轮或链轮、减震器和风扇皮带轮。皮带轮通过V型皮带驱动发动机风扇,水泵和发电机。"