Title:
【発明の名称】シ-ルした流体スイベルジヨイント
Document Type and Number:
Japanese Patent JPH0765708
Kind Code:
B2
Abstract:
A seal arrangement for a fluid swivel joint such as is commonly used on offshore loading terminals for tankers. The sealed fluid joint includes first and second adjacent joint rings which are rotatable relative to each other about a common central longitudinal axis. The joint rings have a small annular, ring-shaped clearance gap therebetween to allow relative rotational movement, and one of the rings includes an annular seal housing groove facing the clearance gap. An annular seal is positioned in the seal housing groove, and its componets include a pliant annular, sealing member and an adjacent free-floating anti-extrusion ring to prevent the pliant sealing member from being deformed into the clearance gap by a relatively high fluid pressure differential existing across the seal. An oil injection system circulates a flow of oil between a sealing face on one of the joint rings and the contacting surfaces of the sealing member and anti-extrusion so as to remove generated heat and any seal wear debris from the seal arrangement.
Inventors:
Kenneth sea saliga
Application Number:
JP1415985A
Publication Date:
July 19, 1995
Filing Date:
January 28, 1985
Export Citation:
Assignee:
Mobile Oil Collection
International Classes:
F16L39/04; F16L37/00; F16L39/06; (IPC1-7): F16L39/04
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)