Fluid handling – Systems – Multi-way valve unit
Patent
1994-06-27
1995-06-27
Nilson, Robert G.
Fluid handling
Systems
Multi-way valve unit
13762533, 251205, F16K 334
Patent
active
054271460
ABSTRACT:
A linearly adjustable fluid damper of the sliding plate adjustable orifice type damper system having a fixed plate with a plurality of specifically arranged hexagonal shaped apertures therethrough and a slidable adjustable plate also having a plurality of specifically arranged hexagonal shaped apertures therethrough. The sliding plate is juxtaposed the fixed plate such that the apertures of the sliding plate overlap apertures of the fixed plate with center lines bisecting the top and bottom sides of apertures in both plates coinciding. The area of the resultant hexagonal composite orifice through both plates varies non-linearly from full closed position to full open position throughout movement of the sliding plate, however, the result is that fluid flow from zero to maximum through the resultant orifice is a straight line relationship with linear displacement of the sliding plate. Dampers comprising this configuration may thus be pre-set to predetermined openings in fluid flow operations to achieve desired results. In addition, throttling of the fluid flow near zero fluid flow is enhanced.
REFERENCES:
patent: 2470488 (1949-05-01), Honerkamp
patent: 2939377 (1960-06-01), Stach
patent: 2976795 (1961-03-01), Brugler
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patent: 4319520 (1982-03-01), Lanting
patent: 4407187 (1983-10-01), Horney
patent: 4473210 (1984-09-01), Brighton
patent: 4666477 (1987-05-01), Lough
patent: 4681613 (1987-07-01), Porter
patent: 5014608 (1991-05-01), Benson
patent: 5218998 (1993-06-01), Bakken
Bakken Gary M.
Schaller Robert L.
McClanahan J. Michael
Nilson Robert G.
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