''IGR'' CONTROL VALVE Russian patent published in 2014 - IPC F16K3/02 F16K31/54 F16K11/22 

FIELD: machine building.

SUBSTANCE: invention relates to valve production. a control valve "IGR" comprises a body with inlet and outlet branch pipes, a control port where eight throttling elements are set equidistantly and circumferentially along the port circle and the form of their section perpendicular to the control port axis is a isosceles triangle with a 90° apex turned to the control port axis, four of the said elements are stationary and the other four are set between them and can move in the direction of the control port axis, balanced and fitted by a drive with extreme position limiter and channels in the body parallel and perpendicular to the control port axis where spur racks geared with an elongated pinion are provided, the said pinion is set in the area of channels intersection in the body cavity with its depth being less than the pinion diameter by the height of its tooth.

EFFECT: invention is aimed at increased reliability of valve operation and reduced price of the valve.

3 cl, 1 dwg