Sealing arrangement for a swivel

Details Sealing arrangement for a swivel Sealing arrangement for a swivel

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 27/087 (2006.01) F16J 15/46 (2006.01)

Patent

CA 2166393

A sealing arrangement for a swivel (1) comprising inner and outer mutually rotatable swivel members (2, 3), wherein the swivel members have respective inner fluid paths communicating with each other through one or more associated annular spaces (7) at the interface between the swivel members. A first one (3) of the swivel members on each side of the annular space (7) is provided with a peripheral groove (16) receiving a radially displaceable ring element (17) provided with sealing means (18, 19) which are arranged for static sealing against the other swivel member (2) and for dynamic sealing between the ring element (17) and the side walls of the peripheral groove (16), so that the first swivel member (3) apart from the ring elements (17) is rotatable in relation to the other swivel member (2).

Dispositif d'étanchéité conçu pour une tête d'injection (1) comprenant des éléments intérieur et extérieur (2, 3) rotatifs réciproquement possédant des voies de liquide intérieures respectives communiquant les unes avec les autres par l'intermédiaire d'un ou de plusieurs espaces annulaires associés (7) au niveau de l'interface entre lesdits éléments. Un premier (3) des éléments de chaque côté de l'espace annulaire (7) est pourvu d'une gorge périphérique (16) recevant une bague (17) déplaçable radialement, comportant des moyens d'étanchétité (18, 19) conçus pour réaliser une étanchéité statique contre l'autre élément (2), et une étanchéité dynamique entre ladite bague (17) et les parois latérales de la gorge périphérique (16), de telle sorte que le premier élément (3) espacé des bagues (17) est rotatif par rapport à l'autre élément (2).

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