UNIT AND DEVICE FOR CONTROL OF FLUID MEDIUM FLOW Russian patent published in 2010 - IPC F16K47/08 F16K3/24 

FIELD: construction.

SUBSTANCE: control disk unit for devices of fluid medium flow control includes the first disk (30) and the second disk (40). Extended cavity (34, 44) is formed in surface of the first disk and the second disk. The second disk is aligned with the first disk to provide for communication through fluid medium between cavity of the first disk and cavity of the second disk. Cavity of the first disk is displaced or arranged stepwise relative to cavity of the second disk. Cavity of the first disk and cavity of the second disk together form at least a passage (50) for fluid medium. Circular cavities (32) of the first disk (30) for passage of fluid medium and circular cavities (42) of the second disk (40) for passage of fluid medium form together acoustic chambers (55), which are arranged with the possibility to suppress acoustic noise created in passage for fluid medium, as a result of increase and decrease of cross section area with formation of mechanism for expansion or narrowing of passage for fluid medium. There is a device for control of medium flow with above specified control disk unit.

EFFECT: reduced transferred noise due to improvement of pressure reduction component in device of medium flow control.

23 cl, 12 dwg