Packing followers for use with valves

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

Patent

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Details

F16K 41/02 (2006.01) F16K 41/06 (2006.01)

Patent

CA 2740219

A packing follower (514) for use with a valve (500) includes a body having an elongated portion(517) and a bore therethrough to receive a shaft (506). A portion (528) of the bore is tapered to exert a force on a retainer (510) that at least partially surrounds and is positioned within a groove (508) of the shaft when the shaft moves toward an opening defined by the body. Additionally, the force has a first component in a direction perpendicular to a longitudinal axis of the bore and a second component smaller than the first component in a direction parallel to the longitudinal axis of the bore.

L'invention concerne un fouloir de presse-garniture (514) destiné à être utilisé avec une vanne (500), comprenant un corps présentant une partie allongée (517) et un alésage à travers celle-ci pour recevoir un arbre (506). Une partie (528) de l'alésage est conique pour exercer une force sur un dispositif de retenue (510) qui entoure au moins partiellement et est positionné dans une rainure (508) de l'arbre lorsque l'arbre se déplace vers une ouverture définie par le corps. En outre, la force présente une première composante dans un sens perpendiculaire à un axe longitudinal de l'alésage et une seconde composante inférieure à la première composante dans un sens parallèle à l'axe longitudinal de l'alésage.

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