通用小型汽油机活塞环主要参数的选择

活塞环主要设计参数是发动机设计中的重要参数之一,直接影响发动机的整机性能。活塞环的主要尺寸参数D、δ、s、h与环的弹力和应力之间有直接的相互制约关系。对竭力要求提高转速的高速发动机来说,选用较大的p0,较小的厅是可行的。而活塞环的设计在于选择合适的尺寸,使活塞环弹力满足要求的同时应力也在许可范围内。

A Brief Talk on the Selection of Main Design Parameters of Universal Small Gasoline Engine Piston Rings

The main design parameter of piston ring is one of those of the engine design, having direct influnces upon the performance index of the engine. The main dimensional parameters, like D,8,s,h are in a restrictive relation to the tension and stress. To a high speed engine needing high revolutions, it is practicable to adopt larger pO and smaller h.The design of piston ring depends on the rightly selected dimensions , so that the piston ring tension can meet the demand stipulated with its stress in the allowed range.