The application discloses a kind of gas-driven reverse displacement
piston type
powder fuel supply device, it is related to the
fuel supply technical field of
powder fuel
ramjet, including device main body, gas-permeable
piston is slidably connected in device main body, gas-permeable
piston will the inner cavity of device main body be divided into
powder filling chamber and drive
gas chamber, powder filling chamber is located in gas-permeable piston close to the bottom of device main body side, drive
gas chamber is located in gas-permeable piston close to the top of device main body side, the top of device main body is equipped with air inlet and powder fuel outlet, the bottom of device main body is equipped with powder filling port, gas-permeable piston is equipped with multiple gas guide grooves, gas guide groove is used to blow gas in drive
gas chamber to the inner wall around powder filling chamber, the side of gas-permeable piston in powder filling chamber is equipped with throttling device, throttling device is connected with powder fuel outlet by flexible
pipe far from the end of powder filling chamber.This application can reduce the
energy consumption in the process of powder
fuel supply, and space utilization is high.