进出油阀参数对高压供油泵流量的影响分析  

Analysis of Effects of Inlet Valve and Outlet Valve on Flow of High-Pressure Pump

作　　者：张祥山 崔京 房征先 姜伟 张海涛 冷涤非 ZHANG Xiangshan;CUI Jing;FANG Zhengxian;JIANG Wei;ZHANG Haitao;LENG Difei(Longkou Longbeng Diesel Injection High-Tech Co.,Ltd.,Yantai 264000,China;China North Engine Research Institute,Tianjin 300400,China)

机构地区：[1]龙口龙泵柴油喷射高科有限公司,山东烟台264000 [2]中国北方发动机研究所,天津300400

出　　处：《现代车用动力》2024年第2期38-42,共5页Modern Vehicle Power

摘　　要：基于共轨燃油喷射系统高压供油泵模型,研究了进出油阀参数对高压供油泵流量的影响,结果表明:进油阀弹簧预紧力的大小对高压供油泵流量影响很大,过大或过小都会使高压供油泵流量减小;进油阀阀孔直径、升程过小会造成进油节流,使高压供油泵流量减小;进油阀阀芯质量过大会使高压供油泵高转速流量减小;出油阀阀芯质量过大会造成高压供油泵流量波动。Based on the common rail high-pressure pump model,the effect of inlet valve and outlet valve parameters on the flow of highpressure pump was studied,the results show that:spring pretension forces have a great impact on the flow of high-pressure pump,and too large or too small will reduce the flow of high-pressure pump.Too small diameter of inlet valve hole and too low lift of inlet valve will cause the inflow to throttle,reducing the flow of the high-pressure pump.Too much quality of the inlet valve core will result in a decrease in flow of high-pressure pump.Unreasonable quality of the outlet valve core will cause high-pressure pump flow fluctuations.

关 键 词：共轨燃油喷射系统 高压供油泵 流量 进油阀 出油阀 

分 类 号：U464.172[机械工程—车辆工程]