一种动圈式电磁驱动气门的可行性研究  

On Feasibility of a Moving Coil Electromagnetic Valve Actuator

作　　者：刘梁[1] 常思勤[1] 

机构地区：[1]南京理工大学,南京210094

出　　处：《中国机械工程》2009年第19期2283-2287,共5页China Mechanical Engineering

基　　金：国家863高技术研究发展计划资助项目(2006AA05Z236);国家自然科学基金资助项目(50876043)

摘　　要：分析了发动机中应用电磁驱动气门的优越性及设计要求,提出了一种新的动圈式电磁驱动气门的技术方案。建立了电、磁和机械耦合的系统模型,研制了样件并实测了样件的静态驱动力特性,并对电磁驱动气门的动态特性进行了仿真。仿真结果表明,动圈式电磁驱动气门的最小过渡时间可达到3.02ms,最大气门落座速度为0.031m/s,满足高速响应和低落座速度的要求,且与实验结果比较接近,具备在发动机中应用的可能性。The advantages and design requirements of the electromagnetic valve actuator were analyzed herein.A novel moving coil electromagnetic valve actuator was presented,and a coupling system model was developed from three points of view： electric circuit,electromagnetic field and mechanism.The prototype of the moving coil electromagnetic valve actuator was developed,and the electromagnetic force characteristics were validated by experiments.The dynamic characteristics were obtained from the simulation.The results show that the moving coil electromagnetic valve actuator can achieve a transient time of 3.02ms and a seating velocity of 0.031m/s,which is verified by the experiments.Both of the transient time and seating velocity are acceptable.It is possible to be used as an engine valve actuator.

关 键 词：无凸轮发动机 电磁驱动气门 动圈式 动态特性 

分 类 号：TK413.4[动力工程及工程热物理—动力机械及工程] U464.134[机械工程—车辆工程]