US 12,409,912 B2
Turret mooring system
Jason Hayman, Edinburgh (GB); Christopher Burden, Edinburgh (GB); and Nicholas Cresswell, Edinburgh (GB)
Assigned to SUSTAINABLE MARINE ENERGY LIMITED, Edinburgh (GB)
Appl. No. 17/757,214
Filed by SUSTAINABLE MARINE ENERGY LIMITED, Edinburgh (GB)
PCT Filed Dec. 18, 2020, PCT No. PCT/GB2020/053307
§ 371(c)(1), (2) Date Jun. 10, 2022,
PCT Pub. No. WO2021/123825, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1919097 (GB), filed on Dec. 20, 2019.
Prior Publication US 2023/0002012 A1, Jan. 5, 2023
Int. Cl. B63B 21/50 (2006.01); F03B 13/26 (2006.01)
CPC B63B 21/507 (2013.01) [F03B 13/264 (2013.01); B63B 2021/505 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A turret mooring system for a tidal turbine assembly, the turret mooring system comprising:
a turret having:
a shaft for mounting to the tidal turbine assembly and for allowing relative motion between the turret and the tidal turbine assembly about a rotational axis; and
a chain table secured to a lower end of the shaft;
an upstream mooring line for coupling a single upstream anchoring point on a water bed to an upstream portion of the chain table; and
a downstream mooring line for coupling a single downstream anchoring point on the water bed to a downstream portion of the chain table; wherein
the upstream mooring line is a bifurcated mooring line for coupling to two spaced apart upstream attachment points on the upstream portion of the chain table; and/or wherein
the downstream mooring line is a bifurcated mooring line for coupling to two spaced apart downstream attachment points on the downstream portion of the chain table; wherein:
the turret is arranged to provide an upward force when the chain table is submerged in water; and
the upward force is provided by a hydrodynamic fairing on the chain table.