共轨喷油器电磁铁结构与加工工艺的改进  

Improvement for Solenoid Structure and Processing of High Pressure Common Rail Injector

作　　者：平晓锋[1] 李宝峰[1] 矫亚利[1] 

机构地区：[1]中国一汽无锡油泵油嘴研究所,江苏无锡214063

出　　处：《现代车用动力》2014年第1期53-55,共3页Modern Vehicle Power

摘　　要：针对早期共轨喷油器总成跑合后性能变化的现象,阐述了引起这种变化现象的主要原因,并从电磁铁部件两大零件:限位芯和外圆镶圈着手,提出了从结构、材料及加工工艺等方面的改进方案。经冷拖及高温试验结果表明,该改进技术方案可行。Foundational reasons for performance change after run-in experiment of injector assembly were analyzed in this paper. Factors such as structure,material,processing of limit core and packing cylinder were proposed,which cause tiny deformation of solenoid assembly and result in performance deformation. It was showed that improved processing was feasible through normal temperature and high temperature run-in experiments.

关 键 词：共轨喷油器总成 跑合试验 衔铁行程 电磁铁部件 限位芯 外圆镶圈 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]