DEVICE FOR CONTROL OVER LIQUID-PROPELLANT ROCKET ENGINE PERFORMANCE Russian patent published in 1999 - IPC

FIELD: rocket engineering, mechanical engineering. SUBSTANCE: invention can be used to design devices controlling liquid-propellant rocket engines and other power plants. Device for control over liquid-propellant rocket engine includes fuel line, throttle, shut-off valve, body with throttle section located perpendicular to its longitudinal axis, shut-off rod of preliminary stage with piston positioned in space of cylinder attached to body, pyrocartridge, connection nut. Rod of last stage with piston placed in cylinder with boss is set in opposition to shut-off rod. Rod with piston is held in initial position by pyrotechnic cotter pin counteracting to forces of fuel pressure acting on piston of rod. EFFECT: reduced thrust of main unit during transfer to last stage and diminished pulse of aftereffect when it is cut off. 2 dwg