HYDRAULIC CONTROL VALVE Russian patent published in 2020 - IPC F15B13/02 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to hydraulic pneumatic automatic control, and can be used to control supply of working fluid to actuating servo-mechanisms in hydraulic drives of various machines. Hydraulic distributor housing is made in form of geometrical body with flat faces, mainly, parallelepiped. Inlet and / or outlet parts of the above channels are located on its sides. Housing consists of central hollow profiled part and two covers installed at its ends. Inside the central hollow part of the body there is a partition with a central hole dividing the above cavity into two parts, the first and the second. Inside the above central hole of the partition wall there is a shut-off element made in the form of a ball. In the first cavity of the body there fixedly installed is the profiled cylinder, inside which the shaped piston is installed with the possibility of movement, consisting of directly the piston and the rod connected to it, made with possibility of interaction by its shaped mating part of the rod, located diametrically opposite to piston, with surface of said ball, on one side. In the second cavity of the housing there fixedly installed is a profiled cylinder, inside of which a shaped piston is installed with the possibility of movement, consisting of directly the piston and the rod connected to it, made with possibility of interaction by its shaped mating part of the rod, located diametrically opposite to piston, with surface of said ball, on the other side, wherein diameter of piston installed in one cavity exceeds diameter of piston installed in other cavity. Between ends of housing covers and ends of fixed cylinders there are axial cavities for supply or removal of working body during movement of said pistons in said cylinders, and in walls of both cylinders there are through radial channels connecting corresponding cavities in fixed cylinders with corresponding cavities of inlet, outlet and drainage of working medium.

EFFECT: hydraulic distributor is proposed.

1 cl, 2 dwg