2006•Neiranji gongchengRequires access

Research and Experiments of EGR Rates Effect on a Turbocharged Diesel Engine

Chen Zhen-tian

Abstract

The technology of exhaust gas recirculation(EGR) was studied in a turbocharged directinjected diesel engine in order to reduce NO_(x) emissions.The effects of different EGR rate on the performance and emission of the engine were researched in 13mode tests and the optimum EGR rates were determined to meet the requirements of power,economy and emissions.Through an electronic control system,the EGR rate of 13mode tests was controlled automatically.The engine dynamometer test results show that the EGR system is effective.

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Key concepts: Turbocharger, Automotive engineering, Exhaust gas recirculation, Dynamometer, Diesel engine, Diesel fuel, Environmental science, Diesel exhaust