活塞设计出发点 大多数汽车是用传统的往复活塞内燃发动机驱动的,即内燃机借助活塞、连杆和曲轴驱动。为了满足不同的任务,在不同载荷下工作,一般的活塞设计的指标是:重量轻(使加速过程或制动过程惯性小),在气压和爆燃压力作用下,断裂强度高、抗变形能力大,并以尽可能小的导向间隙精确导向。因此,活塞外形很复杂,它并不是一个几何圆柱体的理想形状。 Piston Design Starting Point Most cars are driven by a conventional reciprocating piston internal combustion engine, which is driven by pistons, connecting rods and crankshafts. In order to meet different tasks, work under different loads, the general design of the piston indicators are: light weight (to accelerate the process or brake inertia), under pressure and deflagration pressure, high breaking strength, anti-deformation capacity , And guide it with the smallest possible clearance. Therefore, the piston shape is very complex, it is not the ideal shape of a geometric cylinder.