Optimization of Fuel System Parameters in DI Diesel Engine

This paper introduces the optimization and experimental study of the fuel system parameters, injection pressure, diameter and number of injection nozzle holes, fuel injection timing, magnitude of injection nozzle projecting, in the direct injection diesel engine 4100.The experimental results show that increasing injection pressure, incorporating an injection nozzle with more holes and small hole diameter, decreasing fuel injection timing and rational magnitude of injection nozzle projecting are helpful for the performance of the diesel engine, which has provided experience and the basis for developing other engine designs, and may be available for reference by persons of the same trade.