Bearing assembly and a method for controlling fluid flow...

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

Patent

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F16K 1/22 (2006.01) F16C 33/60 (2006.01) F16C 35/12 (2006.01)

Patent

CA 2741450

A valve system includes a conduit (202) having a flow (206) of fluid therethrough, and a butterfly valve assembly. The butterfly valve assembly includes a shaft (208) extending obliquely within the conduit, a butterfly disk (204), and a first bearing assembly (220) positioned on an external surface of the conduit. The butterfly disk includes a passage sized to receive the shaft therethrough, wherein the butterfly disk is operable to restrict the fluid flow through the conduit when the butterfly valve assembly is in the closed position. The first bearing assembly is configured to receive a first end (226) of the shaft therethough, wherein the first bearing assembly includes a plurality of tapered roller bearings circumferentially-spaced within a bearing race and configured to maintain the butterfly disk at a substantially constant axial position when the butterfly valve assembly is in the closed position.

L'invention porte sur un système de vanne qui comprend un conduit (202) ayant un écoulement (206) de fluide à travers celui-ci, et un ensemble vanne papillon. L'ensemble vanne papillon comprend un arbre (208) s'étendant obliquement à l'intérieur du conduit, un disque papillon (204) et un premier ensemble palier (220) positionné sur une surface externe du conduit. Le disque papillon comprend un passage dimensionné pour recevoir l'arbre à travers celui-ci, le disque papillon pouvant être actionné pour limiter l'écoulement de fluide à travers le conduit lorsque l'ensemble vanne papillon est dans la position fermée. Le premier ensemble palier est configuré pour recevoir une première extrémité (226) de l'arbre à travers celui-ci, le premier ensemble palier comprenant une pluralité de roulements à rouleaux coniques espacés circonférentiellement à l'intérieur d'un chemin de roulement et configurés pour maintenir le disque papillon à une position axiale sensiblement constante lorsque l'ensemble vanne papillon est dans la position fermée.

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