柴油机气门根据工作要求定时开启或关闭进排气通道,从而完成缸内的换气功能。气门工作条件十分苛刻,底面受到具有腐蚀性的高温燃烧合成物气体的强烈冲刷。若进气门漏气,活塞在压缩时,部分空气会窜入空气滤清器,此时可听到“啪啪”响声,严重时会见到火花或黑烟,该缸进气歧管 Diesel engine valve timing according to work regularly open or close into the exhaust passage, thus completing the ventilation function of the cylinder. Valve operating conditions are very harsh, the bottom surface by a corrosive high-temperature combustion of synthetic gas scouring. If the intake valve leaks, the piston in the compression, some of the air will flee into the air filter, you can hear the “pop” sound, in severe cases will see the spark or black smoke, the cylinder intake manifold