Apparatus and methods for energy conversion in an ocean environment

• US 6,833,631 B2
• Filed: 04/05/2002
• Issued: 12/21/2004
• Est. Priority Date: 04/05/2001
• Status: Expired due to Fees

• Current Assignee: Martinus Van Breems
• Original Assignee: Martinus Van Breems
• Inventors: Van Breems, Martinus
• Primary Examiner(s): Waks, Joseph
• Application Number:
  US10/116,000
• Publication Number:
  US 20020145288A1
• Time in Patent Office: 991 Days
• Field of Search: 290/42, 290/53, 204/194, 310/15
• US Class Current: 290/42
• CPC Class Codes: F03B 13/1845 and the wom slides relative to the rem
• CPC Class Codes: F03B 13/188 and the wom is flexible or deformable
• CPC Class Codes: F03B 13/24 to produce a flow of air, e.g. to drive an air turbine F03B13/142 takes precedence
• CPC Class Codes: F05B 2210/18 Air and water being simultaneously used as working fluid
• CPC Class Codes: Y02E 10/30 Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A wave power generator is characterized by an elongate inner member extending vertically in a body of water with its lower end constrained against vertical movement beneath the surface of the water, and an elongate outer flotation member mounted for linear movement along the length of the inner member in response to wave action. The outer member moves along the inner member with the length of the outer member extending along the length of the inner member. Movement of the outer member relative to and along the inner member effects relative linear movement between a coil and magnet to generate electrical power. The wave power generators may be used to supply electrical power to deep water hydrogen generators in which water is electrolyzed at great depths underwater to generate compressed hydrogen gas.

Claims

1. A deep water hydrogen generation system comprising

a deep water hydrogen generator comprising a transfer chamber for being submerged underwater at great depths and having a water inlet for water to be electrolyzed to enter said transfer chamber, an electrolysis unit for electrolyzing the water in said transfer chamber to generate compressed hydrogen gas in said transfer chamber, a transport member within said transfer chamber defining a transport channel for the compressed hydrogen gas, said transport member having a hydrogen gas inlet for directing the compressed hydrogen gas into said transport channel and having a hydrogen gas outlet for removal of the compressed hydrogen gas from said transfer chamber, and a flotation member within said transfer chamber movable in response to the level of the water in said transfer chamber to open and close said water inlet and said hydrogen gas inlet;

and

a source of electrical power coupled with said hydrogen generator for supplying electricity to electrolyze the water.

2. The deep water hydrogen generation system as recited in claim 1 wherein said source of electrical power comprises a wave power generator.

3. The deep water hydrogen generation system as recited in claim 1 wherein said source of electrical power comprises a linear electric generator.

4. The deep water hydrogen generation system as recited in claim 3 wherein said linear electric generator is an underwater linear electric generator forming part of said hydrogen generator.

5. The deep water hydrogen generation system as recited in claim 1 wherein said transfer chamber comprises a tank and further including a transport line in communication with said hydrogen gas outlet for withdrawing the compressed hydrogen gas from said tank.

6. The deep water hydrogen generation system as recited in claim 5 wherein said flotation member automatically closes said water inlet when said tank becomes filled with compressed hydrogen gas and automatically opens said water inlet for entry of water into said tank when the compressed hydrogen gas is thereafter withdrawn.

7. The deep water hydrogen generation system as recited in claim 1 said hydrogen generator further includes means for heating the water to be electrolyzed.

8. A method of producing compressed hydrogen gas at great underwater depths comprising the steps of

deploying a transfer chamber under water at a great depth;

introducing water to be electrolyzed into the transfer chamber via a water inlet of the transfer chamber;

supplying electrical power to an electrolysis unit;

electrolyzing the water in the transfer chamber with the electrolysis unit to generate compressed hydrogen gas within the transfer chamber;

directing the compressed hydrogen gas into a transport channel within the transfer chamber via a hydrogen gas inlet of the transport channel;

allowing a flotation member to rise and fall within the transfer chamber in accordance with the level of the water in the transfer chamber; and

closing and opening the hydrogen gas inlet and the water inlet in response to the rise and fall of the flotation member.

9. The method recited in claim 8 wherein said step of deploying includes deploying the transfer chamber and electrolysis unit underwater at a depth of about one thousand feet or more.

10. The method recited in claim 8 wherein said step of deploying includes deploying the transfer chamber and electrolysis unit in the ocean.

11. The method recited in claim 8 wherein said step of deploying includes deploying the transfer chamber and electrolysis unit in an on-shore body of water.

12. The method recited in claim 8 and further including the step of heating the water that is electrolyzed.

13. The method recited in claim 12 wherein said step of heating includes heating the water with a natural heat source.

14. The method recited in claim 13 wherein said step of heating includes heating the water geothermally.

15. The method recited in claim 12 wherein said step of heating includes heating the water electrically.

16. The method recited in claim 12 wherein said step of heating includes heating the water to about 200°

C. or higher.

17. The method recited in claim 8 wherein said step of electrolyzing includes electrolyzing saltwater.

18. The method recited in claim 8 wherein said step of electrolyzing includes electrolyzing fresh water.

19. The method recited in claim 8 and further including the step of supplying electrical power to the electrolysis unit from a remote location.