汽车污染物与发动机排放控制-毕业论文 定稿.doc

毕 业 论 文 课 题 名 称 汽车污染物与发动机排放控制 二级学院（系）/专 业 机械工程学院/汽车检测与维修技术 班 级 ××× 学 号 ×××× 学 生 姓 名 ××× 指导教师： ××× ××××年××月××日摘 要 近年来随着世界经济的不断发展，汽车这一作为人们出行的主要的交通工具已经越来越普及，逐渐地进入到大众的生活之中。当然随之也带来了一些列的问题，机动车发动机的有害排放物也成为了造成大气污染的一个主要来源，会给人体健康造成了严重的危害。汽车尾气的污染已成为世界共同面临的严重问题。 对此，各国也采取了相应的控制措施来缓解这方面的压力。本文讲述了各国应对的各项措施，包括制定相关的各种排放法规为汽车的排放提供了强有力的依据以及强制各大汽车生产厂家生产达到符合标准的污染物排放的汽车。机动车排气污染控制技术和措施包括发动机净化处理技术控制技术，提高燃油的燃烧率，安装防污染处理设备；还包括行政管理手段，实行综合整治，多措并举，减少或消除机动车尾气中有毒有害气体的排放，减轻对大气环境的污染。 事实证明这些举措的实行不仅仅使得各种有害的污染物的排放量有了很大的降低，对缓解环境的压力有了很大的帮助，而且也节约了能源。 关键词： 机动车；排气污染；控制；技术与措施。 Abstract In recent years, with the continuous development of the world economy, the car gradually into public life as the main means of transportation has become increasingly popular for people to travel. Of course, it also brings some out of the question, the engine of a motor vehicle emissions caused by air pollution has become a major source for human health, causing serious harm. Automobile exhaust pollution has become a serious problem facing the world. Therefore, all countries have taken the corresponding control measures to alleviate the pressure of this respect. This paper describes the dealing measures; including the development of various related emission regulations for exhaust emission has provided the powerful basis and forced the major automobile manufacturers production reached the standard of pollutant discharge car. Motor vehicle exhaust pollution control technologies and measures including engine purification treatment technology and control technology, to improve the combustion rate of the fuel oil, install prevent pollution treatment equipment; also includes means of administrative management, comprehensive control, reducing or eliminating the poisonous and harmful gas in the tail gas of motor vehicle emissions, reduce the pollution of atmospheric environment. The fact that these initiatives implemented not only makes a variety of harmful pollutants emissions are much