汽油机排放技术的应用分析(汽车服务工程)
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汽油机排放技术的应用分析(汽车服务工程)(论文11000字)
摘要：汽车的诞生推动了社会的快速发展，为人们带来了快捷高效的生活方式。随着汽车工业的迅速发展，汽车已进入寻常百姓家庭，人们在享受汽车所带来方便的同时也产生了一些严重的问题，石油的枯竭和环境的污染。在汽车密集的城市，汽车排放污染不仅是一个环境保护问题，而且本身也造成了能源浪费。汽车的尾气，除空气中的氮和氧以及燃烧产物二氧化碳，水蒸气为无害成分外，其余均为有害成分。对人们的生活环境造成了极大的影响，严重地威胁到人们的身体健康，破坏了自然界的生态平衡。在新能源技术还未得到普及应用的今天，解决汽车的排气污染显得极为重要。
本文主要简述汽油机废气的主要成分、生成机理及影响废气生成的主要因素，从而对汽油机排放技术进行简要的分析。
关键词：汽车废气；排放危害；控制技术
Application and analysis of gasoline emissions technology
Abstract:Birth of car promoted the rapid development of society, it brings us a fast and efficient way. With the rapid development of the automotive industry, car have entered ordinary families, people are enjoying the convenience of motor vehicles at the same time has created some serious problems as oil depletion and pollution of the environment. In car-intensive cities, automobile emission pollution is not just an environmental issue, but itself also caused energy waste. Exhaust of a car, with the exception of nitrogen and oxygen in the air and the combustion products carbon dioxide and water vapor into harmless constituents, the rest are harmful ingredients. Had an enormous impact on people's living conditions, a serious threat to people's health, undermined the ecological balance of nature. In today's new energy technologies have not yet been applied to resolve automobile exhaust pollution is extremely important.
This article mainly outlined main ingredient of gasoline engine exhaust gases, generating mechanism and main factors affecting emissions generated, so a brief analysis of gasoline engine emission technology.
Key words:Automobile exhaust gas；The harm from；Control technology
目 录
1 绪论 1
1.1大气污染的分类 1
1.2内燃机排放的评价指标 1
1.3发动机排放物的主要成分及危害 1
1.3.1发动机排放污染物的主要成分 2
1.3.2发动机排放污染物的危害 2
2汽油机排放污染物的生成机理和影响因素 4
2.1汽油机排放污染物生成机理 4
2. 2汽油机排放污染物生成影响因素 6
3汽油机排放污染物机内及机外净化技术 8
3.1汽油机排放污染物机内净化技术及措施 8
3.1.1电控燃油喷射系统 8
3.1.2电控点火系统 9
3.1.3废气再循环系统 9
3.1.4稀薄燃烧 12
3.1.5分层燃烧 13
3.1.6提高燃油品质 13
3.2汽油机排放污染物机外净化技术及措施 13
3.2.1曲轴箱强制通风系统 13
3.2.2燃油蒸发控制系统 14
3.2.3三效催化转化器 15
4机动车尾气排放控制未来发展趋势 18
4.1控制标准 18
4.2新能源汽车和低排放汽车 18
5结论 19
参考文献 20
谢辞 21