The invention discloses a
solid rocket ramjet engine gas flow adjusting device. The
solid rocket ramjet engine gas flow adjusting device comprises a
master controller, a
projectile body, a
gas generator and a spraying
pipe; the spraying
pipe comprises a sealing plate and a hollow
pipe, an unthreaded hole is formed in the wall of the pipe in the direction vertical to the pipe axis direction, a
plunger sliding valve is installed in the unthreaded hole in a sealed manner, and a driving device is arranged on the
plunger sliding valve; N through air inlet holes are formed in the sealing plate, theair inlet holes are distributed within the pipe
diameter scope, plugging covers capable of sealing and plugging the air inlet holes are arranged in N-1 air inlet holes, and
detonation devices capableof detonating the plugging covers are arranged on the plugging covers; and a
pressure sensor is installed in a cavity between the pipe outer wall and the
projectile body and is electrically connectedwith the
master controller, and the
master controller is electrically connected with the driving device; and the
pressure sensor is electrically connected with the
detonation devices. By means of thesolid
rocket ramjet engine gas flow adjusting device, a larger flow adjusting scope can be achieved under the non-jamming state and the jamming state of a
solid rocket ramjet engine, and the beneficial effects of being low in price, accurate and reliable in work and the like are achieved.