电控单体泵电磁阀内阻尼油膜的挤压流动分析  

A squeeze damping film analysis of solenoid valve for electronic control unit pump fuel injection system

作　　者：夏胜枝[1] 欧阳明高[1] 周明[1] 李希浩[1] 

机构地区：[1]清华大学汽车工程系汽车安全与节能国家重点实验室,北京100084

出　　处：《清华大学学报（自然科学版）》2003年第5期693-697,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(59406006);国家"九五"科技攻关项目(96-A16-01-03)

摘　　要：电磁阀是决定所有电控燃油喷射系统性能的关键部件,其阻尼系统参数影响电磁阀的动态响应特性。为此运用平行平板间缝隙流动基本理论对存在于电磁阀衔铁和电磁铁之间的阻尼油膜进行了简化分析。计算结果与有限元方法对比,两者的相对误差只有2%。在此基础上进行了仿真分析,研究了各结构参数对衔铁阻尼特性的影响,为衔铁的设计和参数的匹配提供了依据。The solenoid valve is the key element to determine the performance for all kinds of electronic control fuel injection systems. Many parameters of the damping system influence the dynamic response characteristics of the valve. A simplified method was developed to analyze the squeeze film between the armature and the solenoid based on parallel plate flow theories. Simulation was made to investigate the influence of structure parameters on the damping characteristics and determine optimum venting arrangement for improved valve performance. Compared with the computation result of finite element method, the result has a relative error of 2%. 

关 键 词：燃油喷射系统 电控单体泵 电磁阀 挤压油膜 阻尼油膜 发动机 电控单体泵系统 

分 类 号：TK421.42[动力工程及工程热物理—动力机械及工程] U464[机械工程—车辆工程]