A Fuel Supply System for Ramjet Engines Using Hydraulic Servo Valves
Ramjet engine is one of the most important propulsion technologies in aeronautics and astronautics nowadays. Fuel supply system is always the key part in a ramjet engine. The traditional flow rate control method in the fuel supply system for ramjet engines is manual regulating, which has a low accuracy and bad repetitiveness. Automatic regulating of fuel flow rate using hydraulic proportional flow rate control valves has been developed previously. Although the accuracy of fuel flow rate proportional regulating is much higher than that of manual regulating, the regulating speed of hydraulic proportional flow rate control valves is still low.In this paper, a new kind of fuel supply system for ramjet engines using hydraulic servo valves to control the fuel supply flow rate is developed in order to overcome the shortcoming of traditional and proportional regulating methods. The schematic layout and working principle of the fuel supply system for ramjet engines are introduced. The control strategy and efficiency of the fuel supply system are analyzed and calculated. The static and dynamic experiments were carried out. The experimental results show that the fuel supply system for ramjet engines using hydraulic servo valves is able to regulate flow rate effectively and increase the accuracy and response speed of the fuel supply process.
hydraulic servo valves fuel supply system ramjet engine
Jiang Dan Li Songjing Wang Jia Chen Qi Bao Gang
Department of Fluid Control and Automation, Harbin Institute of Technology, Harbin, 150001, China
国际会议
北戴河
英文
250-253
2007-06-06（万方平台首次上网日期，不代表论文的发表时间）