Development of Electric Motor Driven Multi-Purpose Control Valve for Liquid Rocket Engine

This paper addresses the design and development results of an electric motor driven multi-purpose control valve for liquid rocket engine (LRE).The low-cost and low-weight space launch vehicle is essential in the new space era.The multi-purpose control valve has functions of not only flow control but also flow shut-off, thus the valve can be a substitute for a flow control valve and a shut-off valve.Therefore the multi-purpose valve would be greatly helpful for the reduction of the KSLV-III LRE weight and cost.