Simulation Study of Influence of Structural Parameters of Common Rail Injector on Injection Pattern

Common rail injector is a key component in fuel injection system. The performance of system is directly influenced by it. Meanwhile,common Rail Injector is a precise component,the structural parameters to its performance influence is difficult to obtain through the experiments. In this work,modularity analysis of common rail injector is carried out,according to the structure and the working principle of common rail injector,and the reasonable simulation model of injector is established by the AMESim software. The structural parameters of Injector can easily be modified through the simulation model,the influence of structural parameters of common rail injector on injection pattern is obtained,and the reason of influence be analyzed. The obtained results can be used in the common rail injector optimization and design.