F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 31/52 (2006.01)
Patent
CA 2652378
A method and rotary valve actuator to apply increased torque proximate the open or the closed position of a valve are disclosed. An example rotary valve actuator includes an elongated actuator member (122) and a lever (131) configured to receive a shaft (137) associated with a valve, the lever having a lever arm coupled rotatably to an end of the actuator member, so that when the lever is coupled to the shaft of the valve the elongated actuator member applies a maximum torque to the shaft when the valve is proximate a fully closed or a fully open position.
L'invention concerne un procédé et un moyen d'actionnement de vanne rotative permettant d'appliquer un couple plus important à proximité de la position ouverte ou fermée d'une vanne. Le moyen d'actionnement de vanne rotative, dans un exemple, comprend un élément d'actionnement allongé (122) et un levier (131) conçu pour recevoir une tige (137) associée à la vanne, le levier comportant un bras de levier couplé de façon rotative à une extrémité de l'élément d'actionnement, de sorte que lorsque le levier est couplé à la tige de la vanne, l'élément d'actionnement allongé applique un couple maximal à la tige lorsque la vanne est située à proximité de la position totalement fermée ou totalement ouverte.
Fisher Controls International Llc
Ridout & Maybee Llp
LandOfFree
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