AXISYMMETRICAL GUIDE NOZZLE DRIVE SYSTEM PROVIDED WITH MANY POWER CONTROL LOOPS Russian patent published in 2000 - IPC

FIELD: axisymmetrical exhaust nozzle of flying vehicle gas-turbine engine. SUBSTANCE: proposed system is provided with guide ring connected in working position with many swivel flaps located over circumference around axial line of nozzle limiting path of exhaust gases in nozzle. Trouble-free nozzle drive system consists of at least two independent guide drive subsystems. Drive systems include first and second groups of actuating mechanisms connected (in operating position) with guide ring 86 and first and second trouble-free control units for control of power supplied to first and second groups of actuating mechanisms, respectively. First group of guide actuating mechanisms is interlocked with second group of actuating mechanisms around nozzle. EFFECT: possibility of ensuring trouble-free operation of guide nozzle in case of derangement in hydraulic drive system without complete loss of guide ability of reactive thrust; minimized load on guide ring. 10 cl, 5 dwg