ELECTROHYDRAULIC VIBRATION TEST BED Russian patent published in 2010 - IPC G01M7/02 

FIELD: physics.

SUBSTANCE: electrohydraulic vibration test bed has an actuating cylinder consisting of a housing, a piston with a rod which form working hydraulic chambers, a table with displacement and acceleration sensors, a pumping installation which has a main power pump and a booster pump, hydraulic accumulators, an electrohydraulic servo-valve connected to the hydraulic cylinder by a channel for inlet and outlet of the hydraulic fluid, a line for connecting aggregates and hydraulic and electrical units. The line for discharging hydraulic fluid from the servo-valve is connected to the sucking chamber of the main power pump. The sucking chamber is also connected to a hydraulic accumulator, a safety valve with an overflow slide and the pressure line of the booster pump.

EFFECT: increased reliability of the device and electrical power saving.

1 dwg