ELECTROHYDRAULIC DRIVE Russian patent published in 2019 - IPC F15B9/03 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in controlled volume-closed electrohydraulic drives (EHD). Drive comprises an adjustable axial-piston pump (AAPP) with an electrohydraulic control mechanism, a hydraulic motor, AAPP cradle position sensor, a drive motor, a safety valve, first and second make-up valves, a filling tank, an adder, an auxiliary pump, first and second anti-cavitation valves are introduced, the inputs of which are connected to the outlet of the safety valve and the additional tank by the hydraulic circuit, and the outlets are connected to the corresponding power lines of the hydraulic motor, wherein third and fourth channels of the second cascade of hydraulic distributor are interconnected via hydraulic throttle and each of them is connected with hydraulic power lines by means of hydraulic lines.

EFFECT: higher reliability of EHD in case of failure of EHD drive engine.

1 cl, 1 dwg