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    • 9. 发明公开
    • SWIVEL STACK
    • EP3365589A1
    • 2018-08-29
    • EP16785151.8
    • 2016-10-21
    • Single Buoy Moorings, Inc.
    • RANDRIANARIVONY, Liva, Christian
    • F16L39/06
    • A swivel stack for transfer of fluid across a rotary interface around a main rotation axis between an incoming flow-line and an outgoing flow-line, includes an inner cylindrical body and a first cylindrical annular element. The cylindrical annular element is mounted on the inner cylindrical body so the rotational axes of the annular element and cylindrical body coincide. The inner cylindrical body has an internal conduit running from a cylindrical base parallel to the rotation axis. The conduit has an outlet port communicating with a circumferential cavity on the cylindrical surface of the inner cylindrical body. The first cylindrical annular element includes a toroidal cavity on its internal cylindrical surface. The first cylindrical annular element is mounted on the inner cylindrical body at the level of the outlet port so the toroidal cavity and the circumferential cavity form an annular chamber communicating with the outlet port of the internal conduit.