AXIAL CONTROL VALVE "IGR" Russian patent published in 2017 - IPC F16K3/03 F16K31/54 

FIELD: machine engineering.

SUBSTANCE: axial control valve "IGR" comprises a housing in which eight throttling elements equispaced on a circle of throughway opening are arranged, having in the cross section perpendicular to the axis of the throughway opening a shape of an isosceles triangle with a 90° vertex facing the axis of the throughway opening, four of which are stationary, and the other four are movable and located between them with the possibility of moving in the direction of the axis of the throughway opening and the amount of movement is equal to the triangle cathetus of the stationary throttling element. The stationary throttling elements have a streamlined shape in the direction of the axis of the throughway opening with flat contact surfaces in the same direction intersecting in a line parallel to the axis of the throughway opening, and the movable throttling elements have a streamlined shape in the direction of the axis of the throughway opening and flat parallel surfaces in the same direction with width of not less than flat contact surfaces of the stationary throttling elements and are equipped with gear sectors set eccentrically relative to the streamlined surfaces. The maximum amount of eccentricity does not exceed the triangle's cathetus.

EFFECT: increased reliability of the valve operation.

4 cl, 5 dwg