一种新型的组合活塞环

A New Type of Multi-piece Piston Ring

降低机油耗和减少漏气量是控制柴油机的微粒排放物生成的有效手段,特别由于最近排放法规的强化,更加严格要求控制润滑油的消耗量和活塞的漏气量。目前活塞式发动机环的漏气量一般为吸气量的0.2%～1%。而利用巧妙环组作气环,是可以降低机油消耗量和活塞漏气量的。本文介绍了如何利用三片环组合成一道环组来达到这一目的。

Reducing oil consumption and minimizing air leak is an effective means of controlling fine particle emission. Presently air leak in piston engine normally amounts to 0.2%-1% of air entry. However, ingeniously making use of ring group as air ring will reduce oil consumption as well as air leak of piston. The paper introduces the way of using a ring group combined with three pieces of ring to obtain such result.