高树征； 于传京； 李世君； 张庆林； 刘芳  

    摘要：本文论述了加强治理非道路用发动机尾气排放污染的重要性和迫切性,分析了治理非道路用发动机的尾气排放污染应采用的净化方法,并重点介绍了机外净化及其优点。在发动机试验台架上,选择了两种DOC型尾气净化器,进行了排放比对试验,验证了机外净化的效果。本文在最后总结了非道路用发动机尾气排放机外净化的特点。

    Abstract：The article discussed the importance and urgency of controlling increasingly the exhaust emissions of the off-road engines,and analyzed the applied purge methods used to control the exhaust emissions of the off-road engines,then introduced specially the outer purifier means and its advantage.On an engine test bed,two selected exhaust purifiers with DOC type experienced comparison emission tests;the results validated the sizable effects of the outer purifier means.Finally,the article summarized t...