Fluid handling – Systems – Dividing into parallel flow paths with recombining
Patent
1989-10-16
1990-11-13
Nilson, Robert G.
Fluid handling
Systems
Dividing into parallel flow paths with recombining
251283, 251305, F16K 122
Patent
active
049694855
ABSTRACT:
A butterfly valve includes a duct defining a fluid flow path and a plate-like valve member pivotal in the duct to in one position span and close the latter. The valve member is pivotal to a second position spanning the duct and extending parallel to the flow path to allow fluid flow therein. Means are provided for altering the effective area distribution of the valve member about its pivot axis to decrease the operating torque required by the inventive valve in comparison with conventional butterfly valves.
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Ball Larry K.
Black Joseph R.
Allied-Signal Inc.
Black Joseph R.
McFarland James W.
Miller Terry L.
Nilson Robert G.
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