F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/137
F16K 47/04 (2006.01) F01D 17/14 (2006.01) F16K 1/34 (2006.01) F16K 25/02 (2006.01) F16K 47/08 (2006.01) F16L 55/027 (2006.01)
Patent
CA 1249762
FLOW STABILIZING VALVE, METHOD AND PRESSURE REDUCER ABSTRACT OF THE DISCLOSURE At the time of expansion and accompanying kinetic degradation of a flowing stream of fluid, the flow is stabilized by forming at least two contiguous flow streams which consist of the same fluid but have a different velocity distribution and the two streams are then mixed. When applying the method to a valve provided with a so-called "hemispherical" closure member for com- pressible fluids, subsonic discharge nozzles are formed by cutting recesses in the valve seat downstream of the zone in which the valve closure member bears on the valve seat in the closed position. The subsonic discharge nozzles are disposed in alternate sequence with supersonic discharge nozzles formed by the opposite surfaces of the valve closure member and of the valve seat outside the recesses. When the method is applied to a multi-bore pressure reducer for compressible gases, a pressure-reducing plate is pro- vided with low-discharge ducts in adjacent relation to high- discharge ducts.
474564
Centre Technique Des Industries Mecaniques
Macrae & Co.
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