ELECTROHYDRAULIC STEERING DRIVE OF AIRCRAFT FLIGHT CONTROL SYSTEMS Russian patent published in 2025 - IPC G05B11/01 B64C13/36 

FIELD: aviation.

SUBSTANCE: invention relates to electrohydraulic steering drives (EHSD) intended for use in manoeuvring aircraft control systems. Device comprises an electrohydraulic amplifier consisting of series-connected electromechanical signal converters, a spool valve, a spool valve displacement sensor, the input of which is connected to the output of the spool valve, power hydraulic cylinder, the output of which is the output of the EHSD, and the input of which is connected to the outlet of the spool-type hydraulic control valve, a sensor of the movement of the rod of the power hydraulic cylinder, an electronic control unit of the EHSD, to the first input of which the input signal of the EHSD is connected. Second and third inputs of the electronic hydraulic fracturing control unit are connected to the outputs of the power rod displacement sensor and the spool valve displacement sensor, respectively.

EFFECT: possibility of using electronic hydraulic fracturing during practical operation of aircraft under conditions of wide variation of temperatures, as well as possibility of operating aircraft with insufficient initial characteristics of aeroelasticity.

4 cl, 4 dwg