研究表明，为使柴油机废气排放符合法规要求而采取的某些措施会导致曲轴箱机油中的烟灰含量增加。烟灰含量增加不但引起机油粘度增大，造成柴油机燃油消耗率恶化，而且还会造成柴油机气门驱动系统零部件磨耗增加，本文阐述了有关上述问题的研究结果，指出在机油的配方中适当增加清净分散剂的添加量，加强机油的滤清措施，滤除大颗粒烟灰，可以消除烟灰的不良影响。 Studies have shown that certain measures taken to comply with regulatory requirements for diesel exhaust emissions can lead to increased soot levels in the crankcase oil. The increase of soot content not only causes the viscosity of oil to increase, resulting in the deterioration of diesel fuel consumption rate, but also causes the wear of diesel valve actuation system components to increase. This paper describes the research results on the above problems and points out that proper addition of clean dispersion The amount of agent to enhance the oil filtration measures to filter out large particles of soot, you can eliminate the adverse effects of soot.