共轨喷油器高速电磁阀电磁力影响因素分析  

Influence factors study on the electromagnetic force of high speed solenoid valves used in common rail injectors

作　　者：赵建辉[1] 格列霍夫.雷奥尼德 王章峻 石勇[1] 范立云[1] 马修真[1] 宋恩哲[1] ZHAO Jianhui;LEONID Gnel^hov;WANG Zhanjun;SHI Yong;FAN Liyun;MA Xiuzhen;SONG Enzhe(College of Power and Energy Engineering,HarlDin Engineering University,HarlDin 150001,China;College of Power Engineering,Bauman Moscow State Technical University,Moscow 115569,Russia)

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001 [2]莫斯科国立鲍曼技术大学机械制造学院,俄罗斯莫斯科115569

出　　处：《哈尔滨工程大学学报》2018年第4期703-708,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51475100);黑龙江省留学归国人员科学基金项目(LC201422);中央高校基本科研业务费(HEUCF160304)

摘　　要：为研究关键参数对共轨喷油器高速电磁阀电磁力的影响,本文根据电磁耦合原理建立了考虑最大电磁力饱和现象的电磁阀电磁力数学模型,并基于该电磁力模型进行了参数分析。结果表明:电磁力随驱动电流的变化取决于电磁阀总磁阻和驱动电流范围。当电流小于4 A时,驱动电流是电磁力增加的主要因素,当电流大于4 A后,总磁阻成为制约电磁力增加的决定因素。在电流为10 A时,电磁力随气隙的增加而降低,且降低的程度逐渐增大、气隙直接影响气隙磁阻和电磁阀软磁材料磁阻的变化;电磁力随线圈匝数的增加而增大,但其增大的程度逐渐减小,这是电磁阀总磁阻对电磁力降低的贡献率随线圈匝数增加而增大造成的。To study the effects of key parameters on the electromagnetic force of a high speed solenoid valve(HSV)used in a common rail injector,a mathematical model for the electromagnetic force of HSV was established based on the principle of electromagnetic coupling.In this model,electromagnetic saturation phenomenon was considered.The agreement of simulation results with the experimental data confirmed the accuracy of the proposed model.Subsequently,an analysis of the structural parameters of HSV was performed on basis of the model.The results show that the changes in the electromagnetic force caused by driving current rely on the total magnetic reluctance of HSV and the range of the driving current.When the current is less than 4 A,the driving current primarily controls the increase in the electromagnetic force;When the current is higher than 4 A,the total reluctance becomes the determining factor that restricts the increase in the electromagnetic force.When the current is 10 A,the electromagnetic force decreases with an increase in the air gap and the degree of decrease gradually increases.The air gap directly affects the change in air gap reluctance and magnetic reluctance of the soft HSV material.The electromagnetic force increases with an increase in the number of coil turns,but the increased breadth gradually decreases;this is because the total reluctance of HSV to electromagnetic force increases with an increase in the number of coil turns.

关 键 词：电磁力 B-H磁化曲线 驱动电流 高速电磁阀 高压共轨系统 喷油器 共轨喷油器 

分 类 号：TK42.41[动力工程及工程热物理—动力机械及工程]