Experimental Study of Automotive Gasoline Engine Exhaust Gas Recirculation

NO_x is one of the three main pollutants emissions of automotive gasoline engine, it is the most difficult to reduce and control too, the technology of exhaust gas recirculation (EGR) is the most effective method to reduce the NO_x. This method has been widely used in abroad, but most domestic research on the technology of EGR is insufficient, so in this paper, I design a set of exhaust gas recirculation system, by connecting with the practical condition in our country, starting with experiment. At the same time make a system research to influence by the exhaust gas returning system on the gasoline, such as exhaust gas, fuel economy, and power, which obtained under different working conditions by adopting the EGR integrated effect on emission rules.