横磁振荡模式(TM_(010))微波谐振腔的多点点火方法  

Method to realize multi-point ignition based on the microwave resonant of transverse magnetic resonant mode(TM010)

作　　者：张贵新[1] 侯凌云[1] 王强[1] 刘永喜[1] 黄健[2] 王志[2] 

机构地区：[1]清华大学电机工程与应用电子技术系 [2]清华大学汽车安全与节能国家重点实验室

出　　处：《汽车安全与节能学报》2015年第2期179-183,共5页Journal of Automotive Safety and Energy

基　　金：国家自然科学基金(51176098;51177085)

摘　　要：针对目前火花塞点火系统燃烧速度慢、燃烧效率低下等问题,提出了一种利用微波谐振腔实现多点点火的方法。通过理论分析和模拟仿真、优化,确定了横磁振荡模式(TM010)谐振腔的尺寸及其发生谐振时的场强分布。同时采用高速相机和压力传感器,对点火燃烧过程进行可视化分析和燃烧压力特性分析。结果表明:与传统的火花塞的点火方法相比,在实验气压为200 k Pa的条件下,这种方法可以缩短到达压力峰值的时间约15%,并且可以使峰值压力提高约5%。因此,这种方法能够实现多点点火。A method to realize multi-point ignition was introduced to solve problems of low combustion speed and low energy utilization rate in traditional spark plug ignition system. A primary design of a transverse magnetic resonant mode （TM010） was used for calculation and optimization based on theoretical analysis and stimulation to determine the size of resonant cavity and to determine the electromagnetic field distribution in the cavity. A high speed camera and some pressure sensors were used for visualization analysis and combustion pressure characteristic analysis. The results show that this method shortens the time by 15% when the pressure arrived at the maximum, and increases the maximum pressure by 5% at the experiment pressure of 200 kPa compared to the conventional spark plug ignition. Therefore, this method can realize the multi-point ignition.

关 键 词：内燃机 多点点火 微波谐振模式 横磁振荡模式(TM010) 电场畸变 火花塞 

分 类 号：V233.327[航空宇航科学与技术—航空宇航推进理论与工程] TM155[电气工程—电工理论与新技术]