影响汽车尾气排放的因素及解决措施.doc

影响汽车尾气排放的因素及解决措施

中文摘要
汽车尾气排放已经严重威胁了人类生活的环境，为了防止汽车尾气放排放日益污染严重，因此我决定从此方面入手，对现在汽车尾气的 进行调查整合并对此进行研究。随着人们的生活水平的提高，汽车数量越来越多，汽车尾气排放也急剧增加，这成为环境影响的一个重要的因素。汽车尾气中的碳氢化合物和氮氧化合物在阳关作用下发生化学反应，生成臭氧，它和大气中的其他成分结合就形成光化学物，对健康的危害极为严重。目前我国汽车尾气处理技术能使用为电控燃油供给系统（EFI）：它利用各种传感器检测发动机各种状态，经微处理器的判断、计算，使发动机在不同工况下均能获得合适的空燃比的混合气。在任何情况下都能获得精确的空燃比；混合气的各缸分配均匀性好；汽车的加速性能
好；充气率高；良好的起动性能和减速减油或断油，使汽车尾气对环境污染减轻。

关键词：汽车尾气；排放； 环境污染

Abstract
Vehicle exhaust emission has been a serious threat to human living environment, in order to prevent the discharge of automobile tail gas discharge pullution is serious,so I decided to start noe，on automobile exhaust were investigated and studied the integartion. As people’s living standard rise, the number of cars is increasing，vehicle exhaust emissions have increased dramarically，the environmental impact is an important factor. The automobile tail gas inhydrocarbons and nitrogen oxides in the sun under the effect of chemical reaction，the generated ozone，which in the atmosphere and the other components of photochemistry，the health hazard is very serious，At present our country automobile tail gas treatment technology can be used for the electronic control fuel system (EFI)：it uses a variety of sensors to detect engine state，the microprocessor judgment，calculation，so that the engine in different working condition can be obtained by proper air-fuel ratio of the mixture gas. In any case，can obtain the accurate air fuel ratio；mixed gas distribution uniformity of each cylinder；the car’s acceleration performance is good；the chargeing efficiency is high；a good starting performance and the deceleration and oil or oil，so that the automobile exhaust on the environment pollution loss.

 Keywords：Automobile exhaust  Emission  Environmental pollution 

目录
第一章 影响汽车尾气排放因素.........................................

1.1 化油器式发动机燃料供给系统的调整维修对汽车排放的影响..........
1. 2.电控燃油喷射发动机的维修调整对汽车排放的影响.................

第二章中国汽车尾气排放标准

2.1中国汽车尾气排放标准与欧I、欧II、欧III标准体系...............
2.2 OBD系统作为新型车载系统.......................................

第三章改善汽车尾气排放相关措施

3.1汽车尾气的净化处理技术......................................
3.2汽车燃油的改用............................................
3.3采用多种燃料作为汽车燃料来使用..........................
3.4发动机外部尾气净化措施..................................
3.5 加强道路交通管理与汽车维护.............................

谢辞..........................................................

参考文献...................................................