Technical Research of High-power Genset Diesel Engines To Meet China Ⅳ Regulation
In the development of genset diesel engine,there was a problem where the emission upgrades.To meet the non-road China Ⅳ Regulation,this paper optimizes the design and matching of fuel system,turbochargers system,combustion chamber,and SCR post-treatment system.After upgrading to the China Ⅳ prototype,performance and emis-sion tests will be compared with the China Ⅲ prototype.The experimental results show that the fuel consumption of the China Ⅳ prototype is reduced by 1％to 7％compared to the China Ⅲ prototype;The use of high-pressure common rail system can effectively reduce carbon smoke emissions;Based on a diesel engine with a movable generator Pmax>900kW,adopting a technical roadmap of high-pressure common rail+high-efficiency SCR+combustion optimization,the emis-sions of pollutants meet the non road China Ⅳ emission limit requirements.
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