摘要
SCR是降低柴油机NOx排放的有效措施,是柴油机NOx排放控制的关键技术。介绍了SCR技术降低柴油机NOx排放的工作机理、SCR系统构成、SCR技术在大幅度降低NOx排放方面的优势以及影响SCR系统性能稳定性的因素。SCR技术可使产品柴油机达到欧Ⅳ排放水平,最后介绍了车用柴油机SCR技术还需要解决的问题。
SCR is an effective and critical technique for controlling and reducing diesel engines′ NOx;emission.In this paper,the working principle of reducing the NOx;emission,the structures and the advantages of the SCR technology are introduced.The factors that influence the performance stability of the SCR system are also mentioned.SCR technology could fulfill Euro-IV emission regulation.At last,some unsolved problems of SCR technology for vehicle diesel engine are presented.
出处
《内燃机与动力装置》
2010年第4期43-45,共3页
Internal Combustion Engine & Powerplant
