进油横腔对共轨喷油器喷油性能的影响研究  

Study on Influence of Cross Cavity on Fuel Injection Performance of Common Rail Injector

作　　者：杨中伟[1,2] 高广新 朱君亮[1,2] 徐亚磊 YANG Zhongwei;GAO Guangxin;ZHU Junliang;XU Yalei(FAW Wuxi Fuel Injection Equipment Research Institute,Wuxi 214063,China;Advanced Technology Research Institute,FAW Jiefang Engine Business Division,Wuxi 214063,China)

机构地区：[1]中国一汽无锡油泵油嘴研究所,江苏无锡214063 [2]一汽解放发动机事业部前瞻技术研究院,江苏无锡214063

出　　处：《现代车用动力》2022年第1期56-60,共5页Modern Vehicle Power

摘　　要：在喷油性能试验中,喷油器总成上的进油横腔分为无进油滤芯和有进油滤芯2种。为了分析不同进油横腔对喷油器性能的影响,选取无进油滤芯和有进油滤芯的横腔安装在同一喷油器总成上,进行不同轨压下的喷油性能测试。测试结果结合计算流体动力学(CFD)进行流动仿真分析,发现进油横腔对共轨喷油器喷油量及其均方差有一定的影响,对喷油持续期影响较小,合理的进油横腔对控制喷油量及其均方差有重要意义。In the fuel injection performance test,the oil inlet cross cavity on the fuel injector assembly is divided into two types:One with oil inlet filter element and the other with no oil inlet filter element.In order to analyze the influence of different oil inlet cross cavities on the injector performance,the cross cavities without oil inlet filter and with oil inlet filter element were installed on the same injector assembly,and the injection performance under different rail pressures was tested.Combined with the CFD flow simulation analysis,it is concluded that the oil inlet cross cavity has a certain influence on the fuel injection volume and mean square deviation of the hot rail injector,but has little influence on the fuel injection duration.A reasonable oil inlet cross cavity is of great significance to control the fuel injection volume and mean square deviation.

关 键 词：进油横腔 滤芯 喷油性能 喷油器 流动仿真 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]