慢开快关电控喷油器仿真研究  

Simulation on Slow-open and Quick-close Electronic Controlled Injector

作　　者：张睿[1] 平涛[1] 浦卫华[1] 方文超[1] 徐建新[1] 

机构地区：[1]中国船舶重工集团公司第七一一研究所,上海201108

出　　处：《现代车用动力》2012年第3期5-9,60,共6页Modern Vehicle Power

摘　　要：介绍一种新型电控喷油器结构,在不采用多次喷射条件下,可以实现先缓后急的喷油规律,以改善NOx排放和燃烧噪声,采用Amesim软件对这种电控喷油器建立模型并进行标定,运用经过标定的模型进行多方案计算,分析进出油量孔直径、量孔板斜侧孔直径、中间阀块节流孔直径、控制柱塞直径及针阀直径等关键结构参数对喷油规律的影响,研究结论可用于指导电控喷油器的结构设计及参数优化。A new type of electronic controlled injector was introduced in this paper.It can realize slow open and quick close injection rate without multiple injection.This performance is helpful to reduce NOx emission and combustion noise.A correspondingly simulative model was established with Amesim,and calibrated with experimental results.Verified model was used to analyze structure parameters impact on injection rate,including inlet and outlet orifice,lateral orifice in orifice plate,orifice in intermediate block,control piston and needle diameter.These conclusions can be used in structure design and parameter optimization of electronic controlled injector.

关 键 词：电控喷油器 AMESIM 喷油规律 

分 类 号：TK4[动力工程及工程热物理—动力机械及工程]