论文部分内容阅读
柴油机进气系统不严密,会使部分空气不经滤清器直接进入气缸,使气缸磨损加剧。这种情况一般是由于空气滤清器壳体与油盘边缘结合不严密、焊缝开裂或进气管与缸盖接头的螺栓松动、垫片不平及损坏造成的。检查进气是否严密,可在柴油机上直接进行。使柴油机中速运转,将空气滤清器进气罩拿下,把中央进气管道堵住,且不能漏气,如果柴油机在3~5秒钟内能自行被闷熄火,则说明进气严密性良好;如果转速降低,声音改变,但还能运转,说明有轻微漏
Diesel intake system is not tight, will make some air without the filter directly into the cylinder, so that cylinder wear and tear worse. This situation is usually due to the combination of the air cleaner housing and the oil pan flange is not tight, weld cracking or intake pipe and cylinder head bolts loose pad uneven and damage caused. Check the intake is tight, can be carried out directly on the diesel engine. So that the diesel engine running at medium speed, the air filter into the hood to win, the central intake pipe blocked, and can not leak, if the diesel engine in 3 to 5 seconds can be self-muffled flame, then the air tight Good sex; if the speed is reduced, the sound changes, but it still works, indicating a slight leak