气门间隙是柴油机的一个重要的调整参数,其大小与发动机的结构、型式等有关,各种发动机都规定有具体的数值。为了保证气门与气门座的工作密封性,在配气机构中的气门与摇臂间,需要留有一定间隙,这就是我们平常所讲的气门间隙。留有间隙,可以防止加工误差、气门跳动或积炭而带来的气门关闭不严;同时还可补偿气门、推杆、气缸盖等因温度变化而产生的不同伸长量,以保证密封良好。气门间隙应按规定调整,过大、过小都 Valve clearance is an important diesel engine adjustment parameters, the size and structure of the engine, type, etc., all kinds of engines are provided with specific values. In order to ensure the work of valve and valve seat sealing, valve and valve arm in the valve, you need to leave a certain gap, which is what we usually say valve clearance. Leave a gap, to prevent processing errors, valve bounce or carbon deposition caused by the lax valve closure; the same time also compensate valve, putter, cylinder head and other changes due to temperature changes in the amount of elongation to ensure good sealing . Valve clearance should be adjusted according to regulations, too large, too small