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1辆斯太尔汽车在启动一段时间后出现排气管滴油现象。柴油机转速越高,滴油越明显,尾气中伴有蓝色烟雾,同时柴油机出现了早燃现象,动力有所下降,机体温度不断上升,油耗也有明显增加。分析认为,排气管滴油应有2种可能:一是滴出柴油,二是滴出机油。柴油机排气管滴柴油的原因主要有柴油雾化不良、供油提前角不正确以及输油泵活塞密封装置失效等。这些原因将导致柴油不能够完全燃烧,一部分柴油可能以蒸气的形式进入到排气管中。
A Steyr car in the start after a period of exhaust pipe drip phenomenon. Diesel engine speed is higher, the more obvious drip, blue smoke accompanied by exhaust gas, while the diesel engine appeared premature combustion phenomenon, power decreased, the body temperature continues to rise, fuel consumption also increased significantly. Analysis, the exhaust pipe drip should be two possibilities: First, drip out of diesel, and second, drip out of oil. Diesel exhaust pipe dripping diesel mainly due to poor atomization of diesel, fuel supply advance angle is not correct and the failure of the oil pump piston seal and so on. These reasons will lead to diesel can not be completely burned, some of the diesel may be in the form of steam into the exhaust pipe.