共轨用新型电控喷油器结构及性能研究

根据船用柴油机共轨燃油系统工作特点及技术发展趋势,基于AMESim软件平台针对头部带蓄压器的新型喷油器结构建立仿真模型,研究其设计要点。结论表明:新型喷油器结构可以有效抑制系统中多个喷油器喷射过程中的互相干扰,蓄压器入口节流孔大小及蓄压容积的选取是影响新型结构喷油器性能的关键结构参数。

Structure and Performance Research on a New Injector of Common Rail Fuel Systems

According to the characteristics and the future tendency of common rail systems for marine diesel engines,an injector model with accumulator on top was built based on AMESim software.Simulation results show that the new structure can effectively prevent the injectors from interfering each other,and the key structure parameters which can influence the performance of the new injector are the size of throttle orifice and the volume of the pressure accumulator.