高压共轨喷油器电磁系统对喷油规律的影响  

Effect of High Pressure Common Rail Injector Electromagnetism System on Injection Rate

作　　者：袁方恩[1] 林学东[1] 田维[1] 金一鹤 王磊 刘洪涛 

机构地区：[1]吉林大学汽车动态模拟国家重点实验室 [2]浙江吉奥汽车有限公司

出　　处：《汽车技术》2010年第7期6-10,共5页Automobile Technology

摘　　要：利用GT-FUEL、GT-POWER软件建立了高压共轨喷射系统和柴油机的仿真模型,并通过发动机台架试验验证了该仿真模型计算结果的准确性和合理性。在此基础上仿真计算分析高压共轨电磁阀参数对喷射规律及发动机性能的影响。结果表明,电磁阀铁芯弹簧刚度对喷油规律没有影响,但其质量影响针阀落座响应时间;适当减小针阀弹簧预紧力或提高电磁力,在不影响针阀落座响应特性的条件下,可提前针阀开启时刻,提高初期喷射速率。The simulation model of high pressure common rail injection system and diesel engine has been built in GT-FUEL and GT-POWER software separately,accuracy and rationality of the simulation model had been proved by rig test results.This paper used the proved GT-FUEL simulation model to analyze the effect of high pressure common rail solenoid valve parameters on injection rate and engine performance.The results show that stiffness of solenoid valve core spring does not affect the injection rate,but the mass of solenoid valve core will affect the needle valve closing response time.Under the conditions of without affecting the needle valve response characteristic,reducing the preload of needle valve spring or increasing the electromagnetic force can advance the timing of needle valve open and increase the initial injection rate.

关 键 词：高压共轨 喷油器 电磁系统 喷油规律 

分 类 号：U464[机械工程—车辆工程]