满足国6标准的柴油机排放技术应用分析研究 机械车辆工程管理专业

摘 要 随着中国汽车工业的不断发展，商用车市场份额不断增加，柴油机作为商用车主要动力来源的需求不断增加。 柴油发动机的废气排放，不管是否引起烟雾和光化学烟雾污染。 美国和欧洲已经开始研究柴油机废气排放和治理，执行非常严格的排放法规，目前国内外排放的柴油机排放主要是 EGR 和 SCR 技术路线。 然而，EGR 管道将增加燃料消耗对燃料中的硫更敏感，国内燃料质量仍有待进一步提高。 良好的燃油经济性，SCR 线柴油机体变化小，对硫磺不敏感，技术升级连续性好，所以国内重型柴油机厂家满足未来排放的六项研究已被用于欧洲的 SCR 路线。关键词 ：国 6 标准；柴油机；排放技术AbstractWith the continuous development of China's automobile industry and growth of commercial vehicle market share is rising gradually, the diesel engine as the main power source of commercial vehicles, the demand is also growing. The large displacement diesel engine, emissions of pollutants caused by bad, such as fog Ting, biochemical smog pollution and other environmental problems in Europe and the United States. Started very early research and Governance on the emission of diesel engine, the implementation of strict emission regulations, domestic and international current emissions control for diesel engines is mainly EGR and SCR two technical route. However, the EGR line will increase the fuel consumption and more sensitive to sulfur in fuel, domestic fuel products Quality remains to be improved fuel economy of the.SCR route, the diesel engine with small changes and not sensitive to sulfur, better continuous upgrading of technology, so most of the domestic heavy-duty diesel engine manufacturers to meet the future of country 6 emissions have adopted the European route SCR route.Keywords: National 6 standard; diesel engine; emission technology目 录1 引言..............................................................................................