使用传统活塞环的机车柴油机经常出现“机油消耗高”、“活塞环、活塞环槽磨耗大”等问题。组合式活塞环是在一个环槽内配置两道活塞环,两道环以斜面相贴组成一副气环组。组合式活塞环具有密封性能好,机油消耗量低,使用寿命长,低磨耗和低排放等突出特点,在活塞环研究方面是一项创新技术。 Locomotive diesel engines that use conventional piston rings often suffer from problems such as “high oil consumption”, “heavy piston ring wear and piston ring wear.” The combined piston ring is configured with two piston rings in a ring groove, and the two rings are inclined to form an air ring group. Combined piston ring with sealing performance, low oil consumption, long life, low wear and low emissions and other salient features in piston ring research is an innovative technology.