Rotary seal with relief angle for controlled tipping

Details Rotary seal with relief angle for controlled tipping Rotary seal with relief angle for controlled tipping

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/46 (2006.01) F16J 15/16 (2006.01) F16J 15/32 (2006.01) F16J 15/40 (2006.01)

Patent

CA 2288389

A sealing device for sealing the gap between two relatively moving members is provided with a pivot point on its cross- sectional perimeter. As pressure against the seal increases, the seal rotates about the pivot point, resulting in an increased sealing surface area on the seal. Additionally, a recess is provided on the cross sectional perimeter, advantageously offering a more frictionless sealing relationship between the seal and the moving member. Further, a recess is provided on outer portion of the cross sectional perimeter on a surface of the seal that would contact an energizer ring, the recess eliminating a dynamic interface between the energizer ring and the seal.

Joint permettant de combler l'espace entre deux éléments relativement mobiles et comprenant un pivot sur son périmètre transversal. Au fur et à mesure que la pression sur le joint augmente, celui-ci tourne autour du pivot et la surface de scellement du joint augmente. De plus, une cavité se trouve avantageusement sur le périmètre transversal pour réduire le frottement de scellement entre le joint et l'élément mobile. Une cavité se trouve également sur la partie extérieure du périmètre transversal, sur une surface du joint qui peut entrer en contact avec un anneau d'étanchéité, la cavité éliminant l'interface dynamique entre l'anneau d'étanchéité et le joint.

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