F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 1/226 (2006.01)
Patent
CA 2647182
A butterfly valve for controlling the flow of fluid within a bore, including a butterfly and at least one ring extending at least one of substantially and completely around a perimeter of the butterfly and adapted to develop an expansion force in the radial direction when the at least one ring is in a contracted state with respect to the radial direction, wherein the at least one ring is secured to the butterfly in the contracted state and radial expansion due to the developed expansion force of the at least one ring is effectively restrained, wherein the butterfly valve is adapted to operate, when placed in a bore, without friction or substantially without friction between the at least one ring and the bore when the butterfly valve is placed in a closed position within the bore.
Vanne papillon pour le contrôle de l'écoulement d'un fluide dans un alésage, comprenant un papillon et au moins une bague s'étendant sensiblement ou complètement autour du périmètre du papillon et apte à développer une force d'expansion dans le sens radial quand ladite bague se trouve dans un état de compression par rapport au sens radial, ladite bague étant dans son état de compression solidement fixée au papillon et l'expansion radiale due à la force d'expansion développée par ladite bague étant efficacement contenue ; la vanne papillon selon la présente invention étant apte à fonctionner, quand on la place dans un alésage, sans frottement ou sensiblement sans frottement entre ladite bague et l'alésage quand on place la vanne papillon en position fermée à l'intérieur de l'alésage.
Craig Wilson And Company
Ge Aviation Systems Llc
LandOfFree
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