US 12,454,934 B2
Submerged fin for wave energy conversion
Erling Tambs, Kristiansand (NO); Jarle Hardeland Oevsthus, Hamresanden (NO); and Alv Repstad, Kristiansand (NO)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 18/690,625
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Sep. 12, 2022, PCT No. PCT/US2022/043206
§ 371(c)(1), (2) Date Mar. 8, 2024,
PCT Pub. No. WO2023/043694, PCT Pub. Date Mar. 23, 2023.
Claims priority of provisional application 63/243,830, filed on Sep. 14, 2021.
Prior Publication US 2024/0376857 A1, Nov. 14, 2024
Int. Cl. F03B 13/18 (2006.01); F03B 15/02 (2006.01)
CPC F03B 13/18 (2013.01) [F03B 15/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An energy conversion system comprising:
a platform anchored to a sea floor;
at least one column disposed on the platform;
a power takeoff system connected to the at least one column, wherein the power takeoff system includes a first arm including a piston-cylinder assembly, and wherein the first arm is coupled to a first joint;
a fin connected to the power takeoff system, wherein the fin is submerged below a surface of the sea; and
a second arm coupled to a second joint, wherein the first and second arms are coupled together at a third joint,
wherein the fin is coupled to the first and second arms adjacent the third joint,
wherein the fin is configured to use subsurface wave motions to extract energy via the power takeoff system,
wherein the piston-cylinder assembly includes a piston configured to move in an axial motion in a cylinder in response to the subsurface wave motions against the fin, and
wherein the first and second arms rotate about the first, second, and third joints as the fin drives the piston to move in the axial motion in the cylinder in response to the subsurface wave motions against the fin.