国Ⅳ排放重卡气助式与非气助式尿素喷射系统的对比分析

摘要

通过对两种尿素喷射系统进行对比分析，得出空气辅助式尿素喷射系统更适合国内国Ⅳ重型卡车的结论，为国Ⅳ产品的设计、总成的选型、成本控制及车辆售后维修提供依据和参考。%To meet the national IV emission standards for diesel engine, the two kinds of urea injection system are discussed,leading to the conclusion that the air-assisted urea injection system is more suitable for the heavy-duty trucks in China, provide the reference for the design of heavy truck, component selection, cost control and vehicle maintenance.