Rotary valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 3/08 (2006.01) F16K 3/314 (2006.01) F16K 3/34 (2006.01) F16K 31/04 (2006.01) G01F 1/36 (2006.01)

Patent

CA 2668896

Systems and methods for metering fluid flow are disclosed. A valve may generally include an orifice plate, and a disc positioned adjacent to the orifice plate. An orientation of the disc relative to the orifice plate is adjustable to regulate a fluid flow rate through the valve. An effective area of an aperture in the orifice plate may be manipulated to adjust the fluid flow rate. In some configurations, the valve may provide sonic flow control or differential pressure regulation. In some applications, a controller may adjust the orientation of the disc relative to the orifice plate to maintain a substantially constant pressure drop across the orifice plate in order to determine a fluid flow rate through the valve.

L'invention concerne des systèmes et des procédés permettant de mesurer le débit d'un fluide. Une valve peut généralement comprendre un diaphragme, et un disque positionné de manière adjacente par rapport au diaphragme. Une orientation du disque par rapport au diaphragme est ajustable pour réguler le débit du fluide traversant la valve. Une section efficace d'une ouverture dans le diaphragme peut être manipulée pour ajuster le débit du fluide. Dans certaines configurations, la valve peut procurer une régulation par pression différentielle ou commande de débit sonique. Dans certaines applications, un contrôleur peut ajuster l'orientation du disque par rapport au diaphragme pour maintenir une chute de pression sensiblement constante en travers du diaphragme afin de déterminer un débit du fluide traversant la valve.

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