我在汽车维修过程中,遇到发动机烧机油(亦即排气管冒蓝烟)的故障,有时候是件头痛的事。 所谓发动机烧机油,是指机油进入燃烧室,与汽油一起燃烧,尾部可见蓝烟。 机油进入燃烧室,一般只有两条途径。一是活塞在上下运动中,油环的侧隙形成瞬时真空,将激溅到缸壁的机油吸进活塞环槽。如果密封环失效,机油通过密封环窜入燃烧室。另一途径是机油通过气门导管内(外)壁直接进入燃烧室。 究竟是从哪条渠道进入的呢?在通常情况下,经过 In the process of vehicle maintenance, I encountered a problem with the engine burning oil (that is, the exhaust pipe emitting blue smoke) which was sometimes a headache. The so-called engine burning oil, refers to the oil into the combustion chamber, burning with gasoline, the tail visible blue smoke. Oil into the combustion chamber, generally only two ways. First, the piston moves up and down, the backlash of the oil ring forms an instantaneous vacuum, and the oil splashing into the cylinder wall sucks into the piston ring groove. If the seal ring fails, the oil flitches into the combustion chamber through the seal ring. Another way is that the oil directly enters the combustion chamber through the inner (outer) wall of the valve guide. What is the channel from which? In normal circumstances, after