J4 ›› 2009, Vol. 20 ›› Issue (19): 0-2392.

• 机械科学 •    

一种动圈式电磁驱动气门的可行性研究

刘梁;常思勤   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-10-10 发布日期:2009-10-10

On Feasibility of a Moving Coil Electromagnetic Valve Actuator

Liu Liang;Chang Siqin   

  • Received:1900-01-01 Revised:1900-01-01 Online:2009-10-10 Published:2009-10-10

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。

关键词: 无凸轮发动机;电磁驱动气门;动圈式;动态特性

Abstract:

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.

Key words: camless engine, electromagnetic valve actuator, moving coil, dynamic characteristics

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