Optimized Design of Structure Parameter of New Fuel Injection System

According to the characteristics and the future tendency of common rail systems for marine diesel engines，the paper used a new injector. A simulation model of the common rail system with new injector was established using HYDSIM system, pressure fluctuation of the common rail pipe and pressure loss of the injector as evaluation indicator, the injector was simulated and optimized using DOE method. Simulation results show that appropriate selection of the structure parameters of the injector structure can effectively prevent the injectors from interfering each other and degree pressure loss of injector.