AIRCRAFT HYDRAULIC POWER TRANSMISSION UNIT Russian patent published in 2023 - IPC B64C13/36 F15B15/18 

FIELD: aircraft.

SUBSTANCE: backup sources of aircraft hydraulic systems. The power transmission unit consists of a hydraulic motor connected through a flow limiter and an electric hydraulic distributor and connected to the pump through a shaft, which has a regulator with hydraulic proportional positive control behind the check valve. The pressure downstream of the check valve is converted to command pressure in the control line of the hydraulic motor regulator. In the regulator, the throttle is connected to a hydraulic condenser. One cavity of the capacitor is connected to the rocker arm plunger through an additional choke. The other cavity of the condenser is connected directly to this plunger, and with the plunger, which is connected by means of a constant and adjustable spring to a rocker arm, which is connected to a multi-position three-line distributor.

EFFECT: increased speed, accuracy, stability of the power transmission unit.

1 cl, 1 dwg