IP Library › Granted Patent US 6,979,171
Granted Patent B2
US 6,979,171 · App. 10/240,255 · Granted Dec 27, 2005

Maritime energy generating device

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,979,171
App. No.
10/240,255
Granted
Dec 27, 2005
Kind
B2
Abstract

A maritime energy generating device including a windmill mounted on a floating foundation, the windmill having a machine compartment mounted at the top of a tower and the foundation being fixed to the bottom of a water body by a connection and including two tanks and a unit for shifting liquid between the tanks and the tanks and the surroundings.

Claims (34)

1. A maritime energy generating device comprising:

a floating foundation;

a windmill mounted on said floating foundation;

a tower;

a machine compartment mounted at a top of the tower; and

a connection for fixing said floating foundation to a bottom of a water body;

wherein the foundation comprises two tanks and a unit for shifting liquid between the tanks or the tanks and the surroundings.

2. The maritime energy generating device according to claim 1 , wherein the tower is aerodynamic in a direction of wind.

3. The maritime energy generating device according to claim 1 , wherein the tower is slimmer in a direction of wind than in a cross direction of the wind.

4. The maritime energy generating device according to claim 1 , wherein the connection is an anchor rope or chain.

5. The maritime energy generating device according to claim 1 , further comprising a connection to an electrical cable for transfer of energy produced by the energy generating device to a place of use.

6. The maritime energy generating device according to claim 1 , wherein the foundation is fixed to the bottom of the water body by an anchor.

7. The maritime energy generating device according to claim 1 , wherein the foundation is rectangular in a direction of wind.

8. The maritime energy generating device according to claim 1 , wherein the foundation includes two pontoons connected by a crossbar.

9. The maritime energy generating device according to claim 1 , wherein the foundation comprises bulkheads on an inside which divide the foundation into two tanks.

10. The maritime energy generating device according to claim 1 , wherein at least one of the tanks comprises open bulkheads.

11. The maritime energy generating device according to claim 1 , wherein at least one of the tanks includes a drain opening formed at a bottom of the tank.

12. The maritime energy generating device according to claim 1 , wherein at least one of the tanks includes a pressure compensation device.

13. The maritime energy generating device according to claim 1 , wherein the unit for shifting liquid comprises a compressor for changing air pressure in one or more of the tanks.

14. The maritime energy generating device according to claim 1 , wherein the unit for shifting liquid comprises a pump.

15. The maritime energy generating device according to claim 1 , wherein each of the two pontoons includes two tanks and a pump for pumping liquid between the tanks or the tanks and the surroundings.

16. The maritime energy generating device according to claim 1 , wherein the unit for shifting of liquid is controlled by an angle and level measuring device disposed on said energy generating device.

17. The maritime energy generating device according to claim 16 , wherein the angle and level measuring device comprises a computer and a storage medium.

18. The maritime energy generating device according to claim 1 , wherein the windmill comprises a one-piece tower connected to the foundation by a wire from a top of the tower down to an end of the foundation.

19. The maritime energy generating device according to claim 1 , wherein the windmill comprises a three-piece divided tower.

20. The maritime energy generating device according to claim 1 , wherein the windmill is of the down-wind type.

21. The maritime energy generating device according to claim 20 , wherein the windmill comprises a rotor including means for angling the rotor away from the tower.

22. The maritime energy generating device according to claim 1 , wherein said means for angling comprising one or more bearings pivotally mounting said rotor on an axis of the windmill.

23. The maritime energy generating device according to claim 22 , wherein a degree of angling of said rotor is controlled by forces affecting the rotor.

24. The maritime energy generating device according to claim 23 , wherein said forces comprise centrifugal forces.

25. The maritime energy generating device according to claim 23 , wherein a degree of angling of said rotor is controlled by an amount of electrical energy produced by a generator of the energy generating device.

26. The maritime energy generating device according to claim 1 , further comprising a generator disposed on the foundation.

27. The maritime energy generating device according to claim 26 , wherein said generator is connected to a drive shaft of the windmill by a shaft arrangement.

28. The maritime energy generating device according to claim 1 , wherein the wind speed or wave size is measured by detectors disposed at a front of the foundation.

Priority Claims (1)
DK 2000 00519 · Mar 28, 2000 · national
Continuity (1)
Related Publication 20040103655A1 · Jun 3, 2004