Fluid handling – Systems – Multi-way valve unit
Patent
1984-12-10
1987-01-06
Cohan, Alan
Fluid handling
Systems
Multi-way valve unit
13762511, 13762546, 251208, F16K 11074
Patent
active
046339043
ABSTRACT:
A unitary multiport rotary disc valve capable of accomplishing the simultaneous interconnection of a plurality of conduits in accordance with a previously determined cycle, where any conduit communicates with no more than one other conduit at any one cycle step, or valve index position, and where movement of the valve between index positions takes place with a minimum of hydraulic shock. The conduits to be interconnected are attached to the bottom of a discoid stationary body, or stator, having ports in it which communicate between the conduits and flow paths in a discoid rotating body, or rotor, which assumes various positions according to the cycle steps and distributes fluid flowing in the conduits in a different manner in each cycle step. Severe hydraulic shock, known as water hammer, is prevented by means of appropriately configured channels which communicate between the ports in the stator and the flow paths of the rotor, so that flow continues through an opening for a brief time period after the opening has passed totally out of register with a port.
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Schick David L.
Schumann Gary M.
Cohan Alan
Cordovano Richard J.
McBride Thomas K.
Rivell John A.
Spears Jr. John F.
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