汽车工业的发展,给人们工作、生活带来极大的便利,同时汽车排放的尾气也给大气环境和人体造成了严重的污染和伤害。人们环保意识不断增强,迫需加强汽车尾气的治理。文章对电控燃油喷射系统,电控点火系统,废气再循环技术,分层燃烧技术,可变气门正时系统,多气门技术等发动机净化技术进行了研究和分析,介绍了汽车尾气净化等离子体处理、纳米催化、汽车磁化净化等尾气净化新技术,对汽车尾气净化技术的应用与实践具有一定借鉴作用。%The development of automobile industry brings more convenience to human’s work and life,but the exhaust gas causes serious pollution to the environment and brings harmfulness to human body.The growing awareness of environmental protection strengthens the exhaust governance.This paper analyzes current internal combustion engine purification technologies and external exhaust gas purification technologies,such as electronic fuel injection system,electronic ignition system,exhaust gas recirculation technology,fuel stratified injection,variable valve timing system and multi-valve technology and so on.Some new purification treatment technologies,such as plasma nanometer catalytic purification,magnetization and new technology are introduced.This paper provides reference for the application and practice of automobile exhaust purification technology.
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