REGULATING DIRECT VALVE Russian patent published in 2017 - IPC F16K1/12 F16K47/14 F16K31/54 

FIELD: machine engineering.

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. 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.

EFFECT: flow control.

2 cl, 4 dwg