CONTROL VALVE Russian patent published in 2014 - IPC F16K1/12 F16K1/54 F16K39/04 F16K47/14 

FIELD: machine building.

SUBSTANCE: control valve includes a body with supply and discharge branch pipes and a shutoff unit installed inside it, which consists of two coaxial hollow cylinders with their walls being fitted by mainly radial holes, and the inner and outer surfaces - by a bearing sealing surface of the seat. The change of the flow passage of the whole shutoff control unit occurs due to the change of the flow passage of the holes. Flow rate is controlled due to the displacement of cylinders in respect to each other with the help of a toothed rack gear with its teeth being set at an angle to the longitudinal axis of the valve. Position of the fixed part in respect to the movable part is defined according to the position of the position indicator.

EFFECT: expanded functionality of a control valve.

2 dwg