FIELD: machine building.
SUBSTANCE: hydraulic control valve is intended for electrohydraulic power amplifiers that make the primary component of electrohydraulic servo drives that feature displacement and throttling regulation. The proposed valve comprises the base, spacer, flat rotary slide valve and cover attached, via the said spacer, to the base. Cylindrical pistons furnished with discharge shoes move in two cylindrical holes of the spacer. Note here that the piston axes are directed perpendicular to the axis of rotation of the flat hydraulic control valve. Working fluid is fed to the pistons via two spacer holes and the base. Aforesaid pistons are in contact with the lever pivoting on the flat hydraulic control valve shaft.
EFFECT: reduced friction forces and amount of lubrication required for shoes and load-bearing disks friction surfaces.
3 dwg
