节流孔板对电控喷油器性能影响的试验研究  

Experimental Study on the Orifices in an Electronic Injector

作　　者：张涛[1] 俞建达[1] 庄福如[1] 王凌云[1] 

机构地区：[1]无锡油泵油嘴研究所,江苏无锡214063

出　　处：《现代车用动力》2008年第4期19-21,38,共4页Modern Vehicle Power

摘　　要：使用EFS喷射试验台,测量电控喷油器在匹配不同参数的节流孔板后所表现出的喷油特性,并加以分析。结果表明:节流孔板是电控共轨喷油器的重要构成部分,既控制着喷油嘴针阀的开启速度,又控制着喷油率的形状。因此,合理优化节流孔板参数,对改进喷油器的喷射性能、改善发动机燃烧状况、降低排放等具有重大意义。By using EFS injection test bench, this paper studied the different performance of electronic injector with different type of orifices. The results show that, as important components of electronic injector used in common rail system, orifices affect on the open rate of nozzle needle and injection rate shapes. So, it is of great importance in getting optimum parameters and ratio of the flow rate to improve the injection rate shapes and combustion status, and achieve lower emission.

关 键 词：节流孔板 喷油率 电控喷油器 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]