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由于汽油的日趋紧缺,利用压缩的天然气作为燃料的汽车已日益增多和普及。压缩天然气的英文缩写为CNG(Compressed Natural Gas),简称之为CNG汽车。压缩天然气有5个优点: 1.价钱便宜,并可缓解汽油紧缺的供需矛盾; 2.辛烷值高,动力性能和抗爆震性好,噪声小; 3.燃烧完全,积炭少,不含铅,不稀释缸内润滑油,可延长汽车保修周期; 4.燃点高(647℃),气体扩散性好,且爆燃混合比需5%～15%,所以安全可靠; 5.社会效益高:CNG汽车排放的CO可减少60%～70%;碳氢化合物也大为降低,噪声也小,因此对环境
Due to the growing shortage of gasoline, the use of compressed natural gas as a fuel vehicle has been increasing and popularity. CNG abbreviation for the CNG (Compressed Natural Gas), referred to as the CNG car. Compressed natural gas has five advantages: 1. The price is cheap, and can ease the shortage of gasoline supply and demand; 2. High octane number, good dynamic performance and detonation shock resistance, small noise; 3. Complete combustion, less coke, Lead, not dilute the cylinder lubricants, can extend the warranty period of the car; 4. High ignition point (647 ℃), good gas diffusion, and deflagration mixing ratio of 5% ~ 15%, so safe and reliable; : CNG vehicles can reduce emissions of CO by 60% to 70%; hydrocarbons are also greatly reduced, the noise is small, so the environment