In order to understand better the process of hydrocarbon formation and the effect of the top land crevice and the oil layer of the cylinder liner on unburned hydrocarbons during cold start and idling period, the temperature of piston top land and liner has been measured. 为了更好地弄清起动和怠速时发动机缸内未燃碳氢生成过程以及顶岸间隙和油膜对缸内未燃碳氢的影响,测量了起动和怠速过程活塞顶岸壁面和缸套壁面温度。
Study on Formation Process of In Cylinder Unburned Hydrocarbons During Cold Start and Idling Periods in SI Engines 冷起动和怠速时火花点火发动机缸内未燃碳氢生成过程的研究
When direct injection diesel engines are warmed up after running from cold start, they will emit a lot of blue smoke containing unburned hydrocarbons ( HC ) which are harmful to people and environment. 柴油机在起动后的暖机过程中排出大量含有未燃碳氢(HC)的蓝烟,给人类健康和社会环境都带来极大的危害。
Catalytic converters are widely used to reduce the amounts of nitrogen oxides, carbon monoxide and unburned hydrocarbons in automotive emissions. 三效催化剂广泛的应用于汽车尾气净化以减少汽车尾气中CO、HC和NOx的排放。