柴油机制造业面临的任务之一是进一步提高国产柴油机在润滑油烧损消耗和换油时排油方面的经济性。不同用途柴油机润滑油的烧损消耗部分占总消耗量的65～93％,因此润滑油烧损消耗量是表征柴油机结构完善程度和采用之润滑油质量的一个较为重要的指标。降低润滑油烧损消耗量的最重要的措施是改进气缸活塞组的零件,首先是改进活塞环。对一些结构所作的分 One of the tasks facing the diesel engine manufacturing industry is to further improve the economic efficiency of domestic diesel engines in terms of lubricating oil loss and oil drain. The burning loss of diesel engine oil for different uses accounts for 65-93% of the total consumption. Therefore, the consumption of lubricating oil burn-in is a more important indicator of the perfection of the diesel engine structure and the quality of the lubricating oil used. The most important measure to reduce the wear and tear on the lubricating oil is to improve the components of the cylinder piston assembly, above all by improving the piston ring. Points for some structure