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采用中凸桶面活塞且其顶部内腔设置冷却油道和收口倾角为2 0°的ω形燃烧室以及单槽双片活塞环等结构设计使 1 80型柴油机的性能明显改善
The structure design of the 1 80 diesel engine with a moderately convex barrel face piston with a cooling gallery in the top cavity and an o-shaped combustor with a 20 ° angle of inclination and a single slot double-piece piston ring