柴油车尾气微粒捕集器技术研究现状及发展趋势  

Present Status and Development Trend of the Exhaust Particulate Filter for Diesel Vehicles

作　　者：王逢瑚[1] 郭秀荣[1] 马岩[1] 杜丹丰[1] 

机构地区：[1]东北林业大学,黑龙江哈尔滨150040

出　　处：《小型内燃机与摩托车》2010年第1期92-96,共5页Small Internal Combustion Engine and Motorcycle

基　　金：国家自然科学基金(30571455)。项目名称:超高强度微米木纤维定向高密度板细胞重构机理研究

摘　　要：柴油车微粒排放物严重地污染环境并危害人类健康,其净化技术一直是人们研究的热点问题。微粒捕集器(DPF)技术是满足未来车用柴油机严格排放法规的重要措施。本文首先介绍了DPF净化机理及其常用的过滤体材料;然后综述了DPF再生技术的研究现状,对各种再生技术进行了分析;最后展望了微粒捕集器再生技术的发展趋势,提出微米木长纤维碳化木DPF过滤效率高,排气背压小,使用寿命长,可为柴油机尾气净化开辟一个新的方向。Diesel Vehicles produce a considerable amount of particulate laden exhaust gases, which is thought to be the main source of air pollution and also cause lung cancer. Particulate emission after - treatment of vehicle diesel engines is one important technology to meet requirements of the future stringent emission legislation. The purification mechanism and filter material of diesel particulate filters （DPF） is introduced firstly, and then the present status of regeneration technologies is summarized. Finally, future trends of these DPF regeneration technologies are indicated. Meanwhile, its presented that the filter efficiency of micro - length fiber carbonized wood（MLFCW） DPF is high, the exhaust back pressure is low and the performance life is long. This can successively open up a new direction for reducing diesel exhaust gases PM.

关 键 词：车用柴油机 尾气净化 微粒捕集器(DPF) 微米木长纤维碳化木(MLFCW) 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]