内燃机的运动件主要包括活塞组件、连杆组件、曲轴飞轮组件等。它是实现内燃机做功任务的主要机构之一。它的功用是传递功率,把气缸中燃料燃烧产生的气体压力,转变为曲轴上的扭矩,并把活塞的往复运动转变为曲轴的旋转运动,从而输出动力,带动工作机械工作。 1.活塞组件活塞组件包括活塞、活塞环、活塞销及其定位用的卡簧或挡圈等,如图1所示。 The moving parts of the internal combustion engine mainly include a piston assembly, a connecting rod assembly, a crankshaft flywheel assembly, and the like. It is to achieve one of the main tasks of the internal combustion engine. Its function is to transfer power, the pressure of the gas generated by the combustion of fuel in the cylinder is converted to the torque on the crankshaft, and the reciprocating motion of the piston is converted into the rotational movement of the crankshaft so as to output the power and drive the working machine to work. 1. Piston assembly Piston assembly includes piston, piston ring, piston pin and its positioning retainer ring or ring, as shown in Figure 1.