Adjustable sealing means

Details Adjustable sealing means Adjustable sealing means

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/02 (2006.01) F16K 5/08 (2006.01) F16K 27/06 (2006.01)

Patent

CA 2559862

A valve has a valving element which is rotatably fitted within a valve body. This valving element of the valve is joined by a stem or shaft portion which extends out of the valve body to interact with an actuator and transmit torque to the valving element. In plug valves, pressure needs to be also applied to the valving element to insure a proper closure. The invention relates to a mechanism to adjustably seal the stem/body interface using only one screw that is positioned on the front of the valve cover for easy access. The force generated by the screw is transposed into a vertical force and a horizontal force by a cam. The multiple faces of the cam are used to transmit the force vertically and horizontally and will maintain the mechanism in a straight position.

L'invention concerne une soupape comportant un élément de soupape pouvant être logé rotatif dans un corps de soupape. Cet élément de soupape est relié par une partie tige ou arbre qui s'étend hors du corps de soupape afin d'interagir avec un dispositif de commande et de transmettre le couple à l'élément de soupape. Dans des soupapes d'obturation, la pression nécessite également d'être appliquée à l'élément de soupape afin d'assurer une fermeture adéquate. L'invention concerne aussi un mécanisme de réglage de l'étanchéité de l'interface tige/corps au moyen d'une seule vis positionnée sur la partie avant du couvercle de soupape pour permettre un accès facile. La force produite par la vis est transposée en une force verticale et en une force horizontale par une came. Les faces multiples de la came sont utilisées afin de transmettre la force verticalement et horizontalement et maintiennent le mécanisme en position rectiligne.

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