Fluid handling – Systems – Multi-way valve unit
Patent
1992-04-01
1993-06-15
Rosenthal, Arnold
Fluid handling
Systems
Multi-way valve unit
1376253, 13762533, 13762532, 454298, 454322, 454324, F16K 332, F24F 1316
Patent
active
052189988
ABSTRACT:
A linearly adjustable fluid damper of the sliding plate adjustable orifice type damper system having a fixed flat plate with a plurality of specifically arranged trapezoidal shaped apertures therethrough, and a slideably adjustable flat plate also having a plurality of specifically arranged trapezoidal shaped apertures therethrough. The sliding plate is juxtaposed the fixed plate such that apertures of the sliding plate overlap apertures of the fixed plate, and aperture orientation of the sliding plate is reversed that of the orientation of the apertures on the fixed plate. The area of the resultant hexagonal composite orifice through both plates varies non-linearly from full open position to full closed position throughout movement of the sliding plate. The result is that fluid flow from zero fluid flow to maximum fluid flow through the resultant orifice is a straight line relationship with linear displacement of the sliding plate. Dampers comprising this configuration may thus be preset to predetermine openings in fluid flow operations to achieve desired results. Alternate embodiments of the invention include use of semi-cylindrical plates and cone shaped plates.
REFERENCES:
patent: 2470488 (1949-05-01), Honerkamp et al.
patent: 4473210 (1984-09-01), Brighton
patent: 4681613 (1987-07-01), Porter
patent: 5014608 (1991-05-01), Benson et al.
Acorn William R.
Bakken Gary M.
Branham Phillip E.
McClanahan J. Michael
Rosenthal Arnold
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