脉冲爆震发动机旋转阀技术研究  

Technology research of rotary valve for pulse detonation engine

作　　者：孙亮[1] 白少卿[1] 罗大亮[1] 

机构地区：[1]西安航天动力研究所,陕西西安710100

出　　处：《火箭推进》2016年第4期41-46,共6页Journal of Rocket Propulsion

摘　　要：为解决脉冲爆震发动机高频稳定连续燃烧推进剂间歇式供应难题,开展了旋转阀技术研究。通过采用伺服电机驱动二阶凸轮特殊结构设计,将电机轴的旋转运动转换为控制阀芯的直线开关运动,并放大电机旋转频率特性,实现最大200 Hz的高频控制。突破了高频响应、长寿命驱动和氧气安全性保障关键技术,完成旋转阀鉴定试验和脉冲爆震发动机地面点火试车考核。研究结果表明,与传统电磁阀相比,旋转阀能够有效提高响应频率,实现了爆震波的稳定连续输出,满足工程应用要求。In order to resolve the difficult problem of pulse detonation engine＇s steady and continuous bum of the fuel which is supplied intermittently, the technology research of rotary valve was developed. The motor axle＇s rotary motion is transformed to linear on-off motion of the valve core based on the design of a special structure in which the servo motor is adopted to drive two-order cam. The rotational frequency of the motor is enlarged by two-order cam simultaneously to realize the control of high frequency of 200 Hz. The key technology problems of high-frequency response, long-life drive and oxygen safety were resolved. The rotary valve＇s performance test and the ground fire test at different operation frequencies were carried out. The results show that the rotary valve can improve the frequency response more efficiently in comparison with the traditional solenoid valve, and satisfy the requirement of engineering application. Steady and continuous output of the detonation wave was realized.

关 键 词：脉冲爆震发动机 旋转阀 高频控制 

分 类 号：V434-34[航空宇航科学与技术—航空宇航推进理论与工程]