范玉，杨建国，贺玉海.双复位弹簧高速电磁阀动态特性研究[J].内燃机工程,2021,42(4):101-108.
双复位弹簧高速电磁阀动态特性研究
Dynamic Characteristics of High Speed Solenoid Valve with Double Return Spring
DOI：10.13949/j.cnki.nrjgc.2021.04.014
关键词:船用柴油机  电控喷油系统  高速电磁阀  双复位弹簧  动态响应
Key Words:marine diesel engine  electronic fuel injection system  high-speed solenoid valve  double return spring  dynamic response
基金项目:船用低速机工程（一期）研制项目(工信部联装函[2017]21号)
作者单位
范玉，杨建国，贺玉海 1.武汉理工大学 能源与动力工程学院，武汉 430063；2.船舶与海洋工程动力系统国家工程实验室 低速机电控分实验室，武汉 430063；3.船舶动力工程技术交通行业重点实验室，武汉 430063 
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摘要:为了同步提高船用柴油机电控喷油系统高速电磁阀的开启和关闭响应速度，提出了一种双复位弹簧的设计方案。首先采用数值模拟的方法建立了单弹簧电磁阀的数值仿真模型，在电磁阀试验台上验证了仿真模型的准确性，在此模型的基础上建立了双复位弹簧的电磁阀模型。研究了低刚度弹簧预紧力与刚度、高刚度弹簧刚度及高刚度弹簧端面与衔铁的初始间隙对电磁阀动态响应的影响。研究结果表明：相较于单弹簧的情形，双复位弹簧的设计可以同时优化电磁阀的开启和关闭响应，特别当低刚度弹簧预紧力为110N，刚度为16N/mm，高刚度弹簧刚度为100N/mm，高刚度弹簧端面与衔铁的初始间隙为0.01mm时，电磁阀开启响应时间减少了1%，关闭响应时间减少了15.2%。
Abstract:In order to simultaneously improve the opening and closing response speed of high speed solenoid valve for marine diesel engine electronic fuel injection system, a design scheme of double return spring was proposed. A numerical simulation model of single spring solenoid valve was established by means of numerical simulation method, and the accuracy of the simulation model was verified on the solenoid valve test bed, and a solenoid valve model of the double return spring was established on the basis of the model. The influences of three parameters on the dynamic response of solenoid valve were studied which are the pre-load and stiffness of low stiffness spring, the stiffness of high stiffness spring and the initial gap between the end face of high stiffness spring and armature. The results show that compared with single spring, the design of the double return spring can optimize the electromagnetic valve opening and closing response at the same time. In particular, when the preload of the low stiffness spring is 110N, the stiffness is 16N/mm, the stiffness of the high-rigidity spring is 100N/mm and the initial gap between the end face of the high-rigidity spring and the armature is 0.01mm. The solenoid valve opening response time is reduced by 1%, and the closing response time is reduced by 15.2%.
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