Optimization Design of the Intake Manifold of Diesel Engine Through Test Analysis

The clean air was evenly distributed to intake port of each cylinder by the intake manifold,the air resistance and amount into the cylinder were impacted by the intake manifold length and diameter,thus affecting the combustion of fuel in engine cylinders. The intake manifold well designed could improve engine performance. The engine intake manifold length and diameter were selected as the optimization variables,aiming at improving the engine power,economy and emission quality.The diesel engine simulation model was established based on BOOST software to optimize coefficient of charging air,power,economy and emission of engine. Its structure parameter was designed and selected by simulation analysis and the optimization method of intake manifold of engine was built.