目前,国产中吨位柴油汽车发动机中,以玉柴YC6105QC柴油机所占比重较大。用户在使用过程中,往往发现柴油机产生“窜气”现象,即发动机加注润滑油口和曲轴箱上的通风口有不同程度的喷冒废气和润滑油的现象,使润滑油消耗量明显增加,功率下降,又污染环境,用户 At present, the domestic tonnage of diesel car engines to Yuchai YC6105QC diesel engines account for a larger proportion. Users often found in the use of diesel engine “blow-by gas” phenomenon, that is, the engine lubrication port and the crankcase vents have varying degrees of spitting on the exhaust gas and lubricating oil, so that significantly increased lubricant consumption , Power down, but also pollute the environment, users