【摘要】 汽油机在一个测试循环的排放污染物总量中,大约有70％～80％的非甲烷碳氢化合物在汽油机冷启动阶段没有经催化转化而直接排入大气中,造成严重污染。经研究后发现,在某些适当的条件下,使用催化转化器可大幅度降低汽油机的冷启动排放污染物的数量,进而提出了一些可行的实用方案。更多还原

【Abstract】 It is estimated that 70% to 80% of non methane HCs have not been converted by the catalytic converter and been directly exhausted into the air.The research shows that HC emissions from gasoline engines may be reduced greatly by using the catalytic converter in some suitable conditions. Some feasible and practical plans are put forward in this paper.更多还原