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(1)未使用规定牌号的柴油,或者使用了油质较差的柴油而又未进行充分沉淀和严格过滤,致使三对精密偶件(柱塞副、出油阀副、针阀副)严重磨损,供油量与供油压力都达不到规定的要求,给油、气的充分混合造成了一定的困难,使涡流室内的涡流强度大大降低,燃烧条件恶化,生成积炭。(2)未使用规定牌号的机油,或机油长期得不到更换,机油滤清器(或滤网)长期不清洗、保养,甚至滤网、滤芯已损坏。在这样的润滑条件下工作的活塞、活塞环、缸套及齿轮、轴类等很快产生了磨损,
(1) Three pairs of precision couplings (plunger pair, discharge valve pair, needle valve pair) are not used unless the specified grade of diesel oil is used, or diesel oil with poor oil quality is used without adequate precipitation and strict filtration Wear, oil supply and oil supply pressure are less than the required requirements, to the oil, gas mixture caused some difficulties, eddy current vortex intensity greatly reduced, the deterioration of combustion conditions, generating coke. (2) If the engine oil is not used or the oil has not been replaced for a long time, the oil filter (or filter) will not be cleaned, maintained and even the filter has been damaged for a long time. Pistons, piston rings, cylinder liners and gears, shafts and the like that work under such lubrication conditions quickly wear out,