Diaphragm actuated air cycle valve

Details Diaphragm actuated air cycle valve Diaphragm actuated air cycle valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/165 (2006.01)

Patent

CA 2248259

An actuated air valve includes a valve body (12) in line with a flow passage (14) for admitting a flow of fluid. A valve member (16) is pivotally mounted about the centerline of the valve body and is pivoted between high flow and low flow positions. A diaphragm (26) and linkage (20, 22) is in mechanical connection to the valve member. A pressure tap from the flow of fluid provides an impulse to the diaphragm which displaces the linkage, thus varying the position of the valve member. A three-way solenoid valve (34) is used to selectively admit the impulse to the diaphragm, thus governing the displacement of the linkage, and thereby varying the position of the valve member.

L'invention concerne une soupape à air commandée, comprenant un corps de soupape (12) aligné avec le passage (14) dans lequel circule un fluide. Un élément de soupape (16) est monté en pivotement, par rapport à la ligne centrale du corps de la soupape et il pivote entre des positions de débit haut et bas. Un diaphragme (26) et des éléments d'articulation (20, 22) sont reliés mécaniquement à l'élément obturateur. Une prise de pression du fluide en mouvement fournit une impulsion au diaphragme qui déplace les éléments d'articulation, qui modifient ainsi la position de l'élément de soupape. Une vanne magnétique à trois voies (34) est utilisée pour laisser passer sélectivement l'impulsion vers le diaphragme, lequel commande le déplacement des éléments d'articulation qui modifient la position de l'élément de soupape.

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