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US 2003/0154899 A1Published application
Single point mooring with suspension turret
AssigneeFMC Technologies, Inc.
InventorsRoy H. Cottrell, L. Terry Boatman
Life of this patent
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AssigneeFMC Technologies, Inc.
InventorsRoy H. Cottrell, L. Terry Boatman
Estimating the term…
An arrangement for suspending a Single Point Mooring Turret from its corresponding vessel, by transmitting a circumferentially uniform axial vertical load without moment through the interface of motion between the vessel and turret, by decoupling mooring system loads, inertial loads and hull deflection induced loads, from transmission across that interface. The arrangement supports the turret through a pendular suspension system which includes bogies, having one or more wheels or rollers per bogie, which roll around the circumference of the moonpool on a rail to allow the bogies to rotate in a horizontal plane which is perpendicular to the center line of the moonpool, and to decouple the bearing loads from radial hull deflection due to ovaling caused by rough seas. Radial flexure is achieved by suspending the turret from the bogie through rocker arms and chains, cables, rods or columns between the bogies and a riser support structure of the turret.
A vessel which includes a large turret that is positioned in a moonpool in the middle portion of a vessel hull where the turret is anchored to a sea floor and includes couplings wherein the vessel is supported in rotation about a primarily vertical axis of said turret wherein, said coupling including an axial bearing arrangement characterized by,
A vessel which includes a large turret that is positioned in a moonpool in the middle portion of a vessel hull where the turret is anchored to a sea floor and includes couplings wherein the vessel is rotatably supported about a primarily vertical axis of said turret said coupling including an axial bearing arrangement characterized by,
A vessel which includes a large turret that is positioned in a moonpool in the middle portion of a vessel hull where the turret is anchored to a sea floor and includes couplings wherein the vessel is rotatably supported about a primarily vertical axis of said turret said coupling including an axial bearing arrangement characterized by,
The vessel of claim 16 wherein,
A vessel which includes a large turret that is positioned in a moonpool in the middle portion of a vessel hull where the turret is anchored to a sea floor and includes couplings wherein the vessel is rotatably supported about a primarily vertical axis of said turret said coupling including an axial bearing arrangement characterized by,
A vessel which includes a large turret that is positioned in a moonpool in the middle portion of a vessel hull where the turret is anchored to a sea floor and includes couplings wherein the vessel is rotatably supported about a primarily vertical axis of said turret said coupling including an axial bearing arrangement characterized by,
Dependencies are inferred from the claim text.