AUTONOMOUS ELECTROHYDRAULIC STEERING DRIVE WITH POWER REGULATOR Russian patent published in 2024 - IPC F15B9/09 

FIELD: machine building.

SUBSTANCE: invention relates to electrohydraulic servo drives and can be used in electrohydraulic systems as an autonomous steering drive for aircraft flight control. Autonomous electrohydraulic steering drive consisting of a drive motor connected through a shaft to a pump and connected to an amplifier and a control microcontroller, to the input of which an external control signal is supplied, make-up unit containing pneumatic hydraulic accumulator, check and safety valves, electrohydraulic distributor controlled by microcontroller, an actuating hydraulic motor equipped with a displacement sensor, the output of which is connected to a control microcontroller, according to the invention, it comprises a pump power controller, which includes the first and second hydraulic cylinders for controlling the characteristic working volume of the pump, wherein the first hydraulic cylinder is connected to the rocker arm by means of springs and then to the multi-position distributor, second hydraulic cylinder is also connected via throttle with multi-position control valve communicated via valve with actuating hydraulic motor.

EFFECT: providing stable output characteristics of autonomous electrohydraulic steering drive due to control of pump power.

1 cl, 1 dwg