摘要
应用液压流体力学原理,对电控喷油器中普遍采用的几种阀芯形式进行了受力分析,推导出了阀芯所受液压力的公式,并且计算了阀芯在关闭过程中所受液压力的变化情况,最后通过比较发现:平面阀在关闭过程中所受液压力最大,锥阀最小,球形阀介于其间,但是关闭以后各种形式的阀芯受力一样大。响应特性测试结果表明:平面阀与锥阀的密封性较好,控制油耗率为28%左右;两者的开启响应时间基本相同,但在关闭响应方面锥阀要好于平面阀。
Some kinds of solenoid valves in the electronically controlled injector were analyzed by use of fluid dynamics, and the formulas were derived for calculating the fluid force on the solenoid valve. Then the characteristics of the pressure on the valve were simulated in the process of valve closure. By comparison, it was found that the force on the plane valve is bigger than that of other kinds of valves, and the force on the taper valve is smaller, but when the valve is closed, the forces on all kinds of them are equal. The test results show that the plane valve and taper valve can control 28% fuel con- sumption rate and have better sealing-performance and that their open response time is equal but the close delay time of plane valve is longer than that of taper valve.
出处
《海军工程大学学报》
CAS
北大核心
2012年第5期96-101,共6页
Journal of Naval University of Engineering
关键词
电控喷油器
电磁阀
液压力
electronically controlled injector
solenoid valve
fluid force
