CONTROL SYSTEM FOR NOZZLE WITH ADJUSTABLE TRACTION VECTOR OF AVIATION GAS-TURBINE ENGINE Russian patent published in 2008 - IPC F02K1/18 

FIELD: engines.

SUBSTANCE: invention relates to aviation gas-turbine engine automatic control systems, particularly, to control systems for nozzle with adjustable traction vector. The specified technical result is obtained by the fact that aviation gas-turbine engine control system for nozzle with adjustable traction vector, consisting of 1) fluid pump and 2) hydraulic drives controllers connected to it, 3) hydraulic drives of supersonic flaps control ring (each hydraulic drive consists of cylinder with rod position sensor, electronic controller, some informational outlets of which are inlets for connection to aircraft onboard systems and to engine control system, while other informational outlets of which are connected to the hydraulic cylinder rod position sensors, its control outlets are connected to hydraulic drive controllers) additionally comprises 4) electrohydraulic valve and 5) control slide valve, consequently installed and connected to the pump. Every hydraulic drive comprises a hydraulic cylinder rod neutral position controller with power inlet and drainage outlet. This regulator is kinematically connected with the hydraulic cylinder rod. Every hydraulic drive comprises a selector, the first and second inlets of which are connected hydraulically to the hydraulic drive controller and hydraulic cylinder rod neutral position controller, outlet of selector is connected to the hydraulic cylinder. The first control inlet of selector and power inlet of hydraulic cylinder rod neutral position controller are connected hydraulically with the control slide valve, and the second control inlet of selector and drainage outlet of hydraulic cylinder rod neutral position controller are connected with the inlet of fluid pump. Electronic controller is equipped with additional control outlet, connected to electrohydraulic valve.

EFFECT: enhancement of system reliability due to integration of devices used to transfer nozzle to axially symmetric position in case of failure of nozzle electronic controller.

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