Abstract:

Through the analysis of the chemical reaction mechanisms of fuel oil burning in a combustion chamber of an engine ,authors in this paper find the relationships between the. reaction mechanism and exhaust air pollution caused by automobiles and saving fuel oil，and descuriobe the action mechanisms of major eliminating smoke and saving energy additives used in our country .They also put forward a standpoint that the atomic state of some function elements can function in the formation of charcoal smoke by the catalytic hydrogenation borore within these additives. Further more，they also introduce their own production of the action mechanisms of the fuel oil saving energy agent.

Key words: energy conservation, anti-smoke agent, engine.