随着城市建设和交通业的不断发展，城市中的料少、嗓音、污水乃汽车尾与排放等环境污染越来越严重，为了改善空气污染的状况，发展其他能源代替汽油作为汽车燃料已成为一项新的任务。车用压缩天然气（CNG）作为一种污染小、安全性高的燃料，可综合降低废气污染物排放量82．2％ With the continuous development of the urban construction and transportation industry, the environmental pollution in the city, such as the shortage of materials, noise, and sewage, such as car tails and emissions, has become more and more serious. To improve the state of air pollution, the development of other energy sources to replace gasoline as vehicle fuel has become A new task. Compressed Natural Gas for Vehicles (CNG) as a fuel with low pollution and high safety can reduce the emission of exhaust gas pollutants by 82.2%