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NOx排放是直喷式柴油机排放中最受关注的部分,且它的降低,需要从改善供油系统、进气系统、燃烧系统方面着手。同时,还必须保持发动机良好的燃油经济性。本文对CA6110/125ZWA增压中冷(水空)柴油机降低NOx排放试验过程中所采取的多种试验方案、改进措施及试验结果进行了介绍。
NOx emissions are the most important part of direct injection diesel engine emissions, and its reduction needs to be improved from the oil supply system, intake system, combustion system. At the same time, good engine fuel economy must also be maintained. This paper introduces various test schemes, improvement measures and test results taken in the course of reducing NOx emissions of CA6110 / 125ZWA supercharged intercooler (water-air) diesel engine.