VALVE Russian patent published in 2005 - IPC

FIELD: valving.

SUBSTANCE: valve comprises housing, inlet and outlet branch pipes with flanges, and movable and unmovable disks with openings. The openings receive common axle. The movable and unmovable disks are provided with shaped flowing ports which are in a contact with each other through face precision working surfaces. The movable disk is mounted for permitting rotation by means of the driving member with respect to the unmovable disk. The face surface of the unmovable disk is provided with the projections arranged over the contour of the flowing ports. The projections are provided with the precision working surface. The valve is provided with additional projections which are interposed between the ports and define hollows connected with each other and outer space. The valve is also provided with the ring projection around the opening for the axle. The face surfaces of the projections are in the plane of the precision working surface.

EFFECT: enhanced reliability.

5 cl, 10 dwg