The invention discloses an oil-gas separation device of an engine crankcase ventilation system, which is characterized in that a high molecular separating plate is arranged at the inlet or the separation baffle of the labyrinth oil gas separation passage on the cylinder cover. The cross section of the cylinder cover of the labyrinth type oil-gas separation channel is the frame shape, the convex block is provided with a transverse groove on both sides of the wall, on top of the labyrinth type oil-gas separation channel are respectively arranged on a cover plate, a vertical ventilation groove is connected below; the polymer separation plate under the edge through the transverse trough and the ventilation cover corresponding contact on both sides of polymer separation plate side respectively with two vertical grooves with a facelift; plate and transverse trough connection. The invention effectively improves the separation effect of oil and gas, reduces the consumption of the oil, prolongs the use time of the oil, ensures the performance of the ventilation system and prolongs the service life of the system.
【技术实现步骤摘要】
【技术保护点】
１．一种发动机曲轴箱通风系统的油气分离装置，其特征在于：在缸罩（１）上的迷宫式油气分离通道的进口（１４）处或分离挡板（１５）处设有一高分子分离板（３）。
【技术特征摘要】
【专利技术属性】
技术研发人员：吴国勇，王锐，史鹏礼，韦颂，祝勇，
申请(专利权)人：重庆长安汽车股份有限公司，
类型：发明
国别省市：85
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