WO2009009733A1 - A deep water power generation system and apparatus - Google Patents

A deep water power generation system and apparatus Download PDF

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Publication number
WO2009009733A1
WO2009009733A1 PCT/US2008/069788 US2008069788W WO2009009733A1 WO 2009009733 A1 WO2009009733 A1 WO 2009009733A1 US 2008069788 W US2008069788 W US 2008069788W WO 2009009733 A1 WO2009009733 A1 WO 2009009733A1
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WIPO (PCT)
Prior art keywords
ballast
water
buoy
ballast buoy
deep water
Prior art date
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Ceased
Application number
PCT/US2008/069788
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French (fr)
Inventor
Ryan Steelberg
Chad Steelberg
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2010516267A priority Critical patent/JP2010533474A/en
Priority to CN200880107217A priority patent/CN101802389A/en
Priority to CA2693782A priority patent/CA2693782A1/en
Priority to EA201070128A priority patent/EA201070128A1/en
Priority to EP08772527.1A priority patent/EP2171262A4/en
Publication of WO2009009733A1 publication Critical patent/WO2009009733A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/10—Submerged units incorporating electric generators or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/18—Purpose of the control system to control buoyancy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention is directed generally to a system and apparatus for power generation and, more particularly, to a deep water power generation system and apparatus.
  • a large buoy system employs a series of large semi-submerged buoy sections, into which the waves strike and cause bending between the sections This bending action moves a hydraulic piston, which pushes fluid in a linear flow that produces energy It has been estimated that such a large buoy system occupying one square kilometer could produce 30 megawatts of power
  • the present invention is directed generally to a system and apparatus for power generation and, more particularly, to a deep water power generation system and apparatus
  • a system for generation of power using an apparatus in deep water includes a ballast buoy configured to achieve a desired depth in the deep water, a substantially vertical hollow tube attached to the ballast buoy that is submerged under water when the ballast buoy achieves the desired depth in the deep water, and a converter for converting the physical environment created in the substantially vertical hollow tube by placement of the ballast buoy at the desired depth in the deep water
  • FIG 1 is an embodiment of the power system and apparatus
  • FIG 2 is a schematic diagram of the ballast buoy system
  • FIG 3 is an embodiment of the power system and apparatus
  • FIG 4 is an embodiment of the power system and apparatus
  • the present invention takes advantage of not only the natural up and down motion of water, but additionally takes advantage of deep ocean water pressure, and does so in a manner that has a lower environmental and social impact than current methods More specifically, the present invention has no need to place funnels, slopes, buoys, or large pipes at the surface of the water, and as such constitutes an improved social and an environmental system over the prior art Further, the present invention allows the reuse of, for example, off-shore oil rigs that are no longer in use, but allows for such re-use without significant modification to those technologies, such as those modifications which would be required by the deep ocean pipe mechanism More specifically, as illustrated in Figure 1 , the present invention takes advantage of ballast principals to "sink" a power generating buoy to a depth sufficient to take advantage of the increased pressure at deeper ocean levels It will be apparent to those of ordinary skill in the pertinent art that such a ballast buoy, and the turbine which is turned by the water flow, will be such that their use will be enabled in deep ocean waters, without the formation of fissures or excessive corrosion Corros
  • FIG 2 is a schematic diagram illustrating the ballast buoy of Figure 1
  • the buoy may include one or more depth sensors, and may additionally include one or more ballast compartments, wherein, as will be apparent to those skilled in the art, water may be allowed until the depth sensor assesses that the ballast buoy has reached the desired depth level
  • the depth sensors may be physically associated with the ballast buoy and may correspondingly automatically sense and achieve the proper depth level, or the depth sensors may merely constitute, for example, one or more pressure transducers, which may relay depth readings, with a mathematical equivalent thereof, to the surface, and entities on the surface may control the entry of water into the ballast to obtain desired depth levels
  • the ballast buoy may have mounted thereunder or therealongside a vertical, hollow cylinder
  • the cylinder may preferably be mounted in a sufficiently rigid manner such that the intense pressure of deep ocean waters will not bend or break the cylinder
  • the passing of ocean water upward ( ⁇ e , from points of higher pressure in deeper water to points of lower pressure at more shallow water) may then generate kinetic energy through any method known to those skilled in the art, such as by forcing the movement of a drive piston
  • a piston may, for example, remain at equilibrium between two pumps attached at opposed sides of the piston and respectively extending to the top and the bottom of the aforementioned cylinder
  • Such a pump may be a simplistic pump, such as a hose that has a reduced internal volume when the hose is stretched, and an increased internal volume when the hose is relaxed, thereby acting as a pump
  • the pressurized water may be expelled into an accumulator that feeds a turbine
  • the turbine may, in turn, drive a generator, and the generated electricity may be brought to the surface by
  • the power generation system and apparatus may take advantage of pressure head differences between the vertical ends of the cylinder
  • a cylinder having a length of 30 meters may be lowered and maintained at a deep water depth of 30 meters providing a first pressure head of 7 07 x 10 5 N/m 2 and a second pressure head of 4 04 10 5 N/m 2
  • a cylinder having a length of 40 meters may be lowered and maintained at a deep water depth of 60 meters providing a first pressure head of 1 1 09 x 10 5 N/m 2 and a second pressure head of 7 07 10 5 N/m 2
  • the present invention lends itself to a multiple buoy system, wherein a buoy at or near the surface supports the ballast buoy at a lower level thereby reducing the need for the ballast buoy to maintain a precise proper depth Further, one or more such buoys above the ballast buoy may be present, and such buoys may be used to generate additional power, operate to hold the aforementioned cabling, or the like Additionally, the present invention, either using a single ballast buoy or a multiple buoy system, may lend itself to the packatization of power supply More specifically, to overcome the inconvenience of obtaining the electrical power generated in deep ocean water, the electricity generated may be brought to the surface in stages, or "packets" wherein such packets are stored until a sufficient amount of power is accumulated to merit bringing that power to the surface Such storage may occur, for example, using capacitors, inductors, or other storage or energy generation mechanisms Additionally, the operation of ihe present invention is simplified by the non-continuous generation of the power from deep ocean water level
  • An additional alternative system would harness the intense pressure resident in deep ocean waters via a pipe dropped from the surface of the ocean water down to those deep depths The intense pressure would then drive the water up the pipe, and the water would drive a turbine on the surface based on the water flowing up the pipe

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

A system for generation of power using an apparatus in deep water is disclosed. The system includes a ballast buoy configured to achieve a desired depth in the deep water, a substantially vertical hollow tube attached to the ballast buoy that is submerged under water when the ballast buoy achieves the desired depth in the deep water, and a converter for converting the physical environment created in the substantially vertical hollow tube by placement of the ballast buoy at the desired depth in the deep water.

Description

A DEEP WATER POWER GENERATION SYSTEM AND APPARATUS
CROSS REFERENCE TO RELATED APPLICATIONS
This application claims priority under 35 U. S. C. 1 19(e) to United States Patent Application No. 60/959, 184, entitled DEEP WATER POWER GENERATION SYSTEM AND APPARATUS, with inventors Ryan Steelberg and Chad Steelberg and filed July 11 , 2007.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable.
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention is directed generally to a system and apparatus for power generation and, more particularly, to a deep water power generation system and apparatus.
Description of the Background
Generating a sufficient energy supply to run the world's ever increasingly energy hungry operation has become a goal on which many modern scientists are intensely focused. One suggested methodology by which such energy supplies could be generated in an environmentally friendly manner has consisted of the generation of power using the water power of the world's oceans. Numerous types of such energy harnessing power generators for operation with the world's oceans have been suggested. Such a sustainable alternative energy source is increasingly attractive as the cost of oil rises and the negative effects on the world's environment of traditional energy supply systems become more apparent
Much of the focus on power generation from the world's oceans has been on "wave energy " One design takes the wave into a funnel at the point of the shore and drives air pressure past two turbines, from which energy is supplied It has been estimated that this method may enable the turning of a 250 kilowatt generator A second method provides for a series of layered reservoirs following a carefully calculated slope Essentially, such reservoirs discretize the potential energy of wave input The energy entering each reservoir is converted to kinetic energy by falling down through the reservoir system, and its energy in turn, turns a generator It is estimated that the operation of such a system using breakwater may generate 150 kilowatts of generator capacity Yet another method places buoys on the system of the ocean and allows the up and down power inherent in waves (as water attempts to reach the point of lowest pressure) to turn an electric generator Such "wave power" systems have been estimated to enable the supply of ten megawatts of power occupying only four acres of ocean space As such, the generation of a hundred megawatts of power would occupy just 40 acres of ocean space, and would supply environmentally friendly power at a rate cheaper than fossil fuels
And yet another alternative methodology, a large buoy system employs a series of large semi-submerged buoy sections, into which the waves strike and cause bending between the sections This bending action moves a hydraulic piston, which pushes fluid in a linear flow that produces energy It has been estimated that such a large buoy system occupying one square kilometer could produce 30 megawatts of power
However, none of the aforementioned programs supply adequate energy at modern standards to enable their widespread use Further, certain programs, such as the deep ocean pipe, might require the creation of technologies not yet available to enable their use
BRiEF SUMMARY OF THE INVENTION
The present invention is directed generally to a system and apparatus for power generation and, more particularly, to a deep water power generation system and apparatus
The present invention solves problems experienced with the prior art because it provides for the clean and consistent generation of power Those and other advantages and benefits of the present invention will become apparent from the detailed description of the invention hereinbelow
A system for generation of power using an apparatus in deep water is disclosed The system includes a ballast buoy configured to achieve a desired depth in the deep water, a substantially vertical hollow tube attached to the ballast buoy that is submerged under water when the ballast buoy achieves the desired depth in the deep water, and a converter for converting the physical environment created in the substantially vertical hollow tube by placement of the ballast buoy at the desired depth in the deep water
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
Understanding of the present invention will be facilitated by consideration of the following detailed description of the preferred embodiments of the present invention taken in conjunction with the accompanying drawings, in which like numerals refer to like parts, and wherein FIG 1 is an embodiment of the power system and apparatus, FIG 2 is a schematic diagram of the ballast buoy system, FIG 3 is an embodiment of the power system and apparatus, and FIG 4 is an embodiment of the power system and apparatus
DETAILED DESCRIPTION OF THE INVENTION
It is to be understood that the figures and descriptions of the present invention have been simplified to illustrate elements that are relevant for a clear understanding of the present invention, while eliminating, for purposes of clarity, many other elements found in typical hydrologic power generation systems Those of ordinary skill in the art will recognize that other elements are desirable and/or required in order to implement the present invention However, because such elements are well known in the art, and because they do not facilitate a better understanding of the present invention a discussion of such elements is not provided herein
The present invention takes advantage of not only the natural up and down motion of water, but additionally takes advantage of deep ocean water pressure, and does so in a manner that has a lower environmental and social impact than current methods More specifically, the present invention has no need to place funnels, slopes, buoys, or large pipes at the surface of the water, and as such constitutes an improved social and an environmental system over the prior art Further, the present invention allows the reuse of, for example, off-shore oil rigs that are no longer in use, but allows for such re-use without significant modification to those technologies, such as those modifications which would be required by the deep ocean pipe mechanism More specifically, as illustrated in Figure 1 , the present invention takes advantage of ballast principals to "sink" a power generating buoy to a depth sufficient to take advantage of the increased pressure at deeper ocean levels It will be apparent to those of ordinary skill in the pertinent art that such a ballast buoy, and the turbine which is turned by the water flow, will be such that their use will be enabled in deep ocean waters, without the formation of fissures or excessive corrosion Corrosive effects may be minimized, in part, by the depth to which the ballast buoy is sunk, at least in that excessive temperature variations of the water are minimized at deeper ocean levels, and further due to the fact that salt content is minimal or non-existent at deeper ocean levels
Figure 2 is a schematic diagram illustrating the ballast buoy of Figure 1 As is shown, the buoy may include one or more depth sensors, and may additionally include one or more ballast compartments, wherein, as will be apparent to those skilled in the art, water may be allowed until the depth sensor assesses that the ballast buoy has reached the desired depth level As will be apparent to those skilled in the art, the depth sensors may be physically associated with the ballast buoy and may correspondingly automatically sense and achieve the proper depth level, or the depth sensors may merely constitute, for example, one or more pressure transducers, which may relay depth readings, with a mathematical equivalent thereof, to the surface, and entities on the surface may control the entry of water into the ballast to obtain desired depth levels
The ballast buoy, as illustrated in Figure 3, may have mounted thereunder or therealongside a vertical, hollow cylinder The cylinder may preferably be mounted in a sufficiently rigid manner such that the intense pressure of deep ocean waters will not bend or break the cylinder The passing of ocean water upward (ι e , from points of higher pressure in deeper water to points of lower pressure at more shallow water) may then generate kinetic energy through any method known to those skilled in the art, such as by forcing the movement of a drive piston Such a piston may, for example, remain at equilibrium between two pumps attached at opposed sides of the piston and respectively extending to the top and the bottom of the aforementioned cylinder Such a pump may be a simplistic pump, such as a hose that has a reduced internal volume when the hose is stretched, and an increased internal volume when the hose is relaxed, thereby acting as a pump Once pumped, the pressurized water may be expelled into an accumulator that feeds a turbine The turbine may, in turn, drive a generator, and the generated electricity may be brought to the surface by a cabling known to those skilled in the art, such as standard submarine cabling
As further illustrated in Figure 4, the power generation system and apparatus may take advantage of pressure head differences between the vertical ends of the cylinder By way of non-limiting example only a cylinder having a length of 30 meters may be lowered and maintained at a deep water depth of 30 meters providing a first pressure head of 7 07 x 105 N/m2 and a second pressure head of 4 04 105 N/m2 By way of further non-limiting example only, a cylinder having a length of 40 meters may be lowered and maintained at a deep water depth of 60 meters providing a first pressure head of 1 1 09 x 105 N/m2 and a second pressure head of 7 07 105 N/m2
Known methodologies that employ similar pump and pressurized seawater systems operate using water that is at significantly lower pressure than deep ocean water Consequently, the deep ocean water of the present invention, and more precisely the pressure under which such deeper ocean water is, will allow for significant multiples of power to generated by the present invention over those power generations made available in the prior art
Further, the present invention lends itself to a multiple buoy system, wherein a buoy at or near the surface supports the ballast buoy at a lower level thereby reducing the need for the ballast buoy to maintain a precise proper depth Further, one or more such buoys above the ballast buoy may be present, and such buoys may be used to generate additional power, operate to hold the aforementioned cabling, or the like Additionally, the present invention, either using a single ballast buoy or a multiple buoy system, may lend itself to the packatization of power supply More specifically, to overcome the inconvenience of obtaining the electrical power generated in deep ocean water, the electricity generated may be brought to the surface in stages, or "packets" wherein such packets are stored until a sufficient amount of power is accumulated to merit bringing that power to the surface Such storage may occur, for example, using capacitors, inductors, or other storage or energy generation mechanisms Additionally, the operation of ihe present invention is simplified by the non-continuous generation of the power from deep ocean water level
An additional alternative system would harness the intense pressure resident in deep ocean waters via a pipe dropped from the surface of the ocean water down to those deep depths The intense pressure would then drive the water up the pipe, and the water would drive a turbine on the surface based on the water flowing up the pipe
The disclosure herein is directed to the variations and modifications of the elements and methods of the invention disclosed that will be apparent to those skilled in the art in light of the disclosure herein Thus, it is intended that the present invention covers the modifications and variations of this invention, provided those modifications and variations come within the scope of the appended claims and the equivalents thereof

Claims

1 A system for generation of power using an apparatus in deep water, said system comprising a ballast buoy configured to achieve a desired depth in the deep water, a substantially vertical hollow tube attached to said ballast buoy that is submerged under water when said ballast buoy achieves the desired depth in the deep water, and, a converter for converting the physical environment created in said substantially vertical hollow tube by placement of said ballast buoy at said desired depth in the deep water to energy
2 The system of Claim 1 , wherein placement of said ballast buoy at the desired depth in deep water occurs at a depth sufficient to make use of the increased pressure at deeper ocean levels
3 The system of Claim 1 , wherein placement of said ballast buoy at the desired depth in deep water minimizes corrosion of the system to make use of minimal temperature variations at deeper ocean levels
4 The system of Claim 1 , wherein placement of said ballast buoy at the desired depth in deep water minimizes corrosion of the system to make use of decreased salinity at deeper ocean levels
5 The system of Claim 1 , wherein said substantially vertical hollow tube is a cylinder 6 The system of Claim 1 , wherein said substantially vertical hollow tube is coupled to said ballast buoy in a rigid manner
7 The system of Claim 1 , wherein said substantially vertical hollow tube passes the deep ocean water from points of higher pressure to points of lower pressure
8 The system of Claim 7, wherein the higher pressure occurs in deeper water
9 The system of Claim 7, wherein the lower pressure occurs in shallower water
10 The system of Claim 7, wherein kinetic energy is generated from the passing water
1 1 The system of Claim 10, wherein said kinetic energy is generated using a piston
12 The system of Claim 10, wherein said kinetic energy is generated using a pump
13 The system of Claim 12, wherein said pump includes a hose that has a reduced internal volume when the hose is stretched, and an increased internal volume when the hose is relaxed, thereby acting as a pump 14 The system of Claim 12, wherein in the water expelled from the pump expels into an accumulator that feeds a turbine
15 The system of Claim 14, wherein the turbine drives a generator with cabling to transmit the generated electricity
16 The system of Claim 1 , wherein said ballast buoy includes at least one depth sensor
17 The system of Claim 1 , wherein said ballast buoy includes at least one temperature sensor
18 The system of Claim 1 , wherein said ballast buoy includes at least one ballast compartment
19 The system of Claim 1 , wherein said ballast buoy includes at least one ballast compartment and said ballast buoy includes at least one depth sensor, said at least one depth sensor providing feedback that allows the ballast buoy to be lowered to the desired depth using said at least one ballast compartment
20 The system of Claim 1 , wherein at least one pressure head difference is achieved across portions of said substantially vertical hollow tube
21 The system of Claim 1 , wherein at least one pressure head difference is achieved across the vertical ends of said substantially vertical hollow tube
PCT/US2008/069788 2007-07-11 2008-07-11 A deep water power generation system and apparatus Ceased WO2009009733A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2010516267A JP2010533474A (en) 2007-07-11 2008-07-11 Deep water power generation system and apparatus
CN200880107217A CN101802389A (en) 2007-07-11 2008-07-11 Deep water power generation system and device
CA2693782A CA2693782A1 (en) 2007-07-11 2008-07-11 A deep water power generation system and apparatus
EA201070128A EA201070128A1 (en) 2007-07-11 2008-07-11 DEEP-WATER SYSTEM AND DEVICE FOR GENERATION OF ELECTRIC ENERGY
EP08772527.1A EP2171262A4 (en) 2007-07-11 2008-07-11 SYSTEM AND APPARATUS FOR PRODUCING DEEP WATER ENERGY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95918407P 2007-07-11 2007-07-11
US60/959,184 2007-07-11

Publications (1)

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WO2009009733A1 true WO2009009733A1 (en) 2009-01-15

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US (5) US7969031B2 (en)
EP (1) EP2171262A4 (en)
JP (1) JP2010533474A (en)
CN (1) CN101802389A (en)
CA (1) CA2693782A1 (en)
EA (1) EA201070128A1 (en)
WO (1) WO2009009733A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2848802A1 (en) * 2013-09-13 2015-03-18 Ricerca Sul Sistema Energetico - RSE S.p.A. System for obtaining electrical energy from a wave motion
IT201600112969A1 (en) * 2016-11-09 2018-05-09 Maximo Aurelio Peviani System for obtaining electricity from a wave motion.

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2393207T3 (en) * 2006-11-28 2012-12-19 40South Energy Limited Fully submerged wave energy converter
WO2009009733A1 (en) * 2007-07-11 2009-01-15 Ryan Steelberg A deep water power generation system and apparatus
US8358022B2 (en) * 2008-09-15 2013-01-22 Wilks Paul L Hydroelectric power generator
CA2726239C (en) * 2009-03-30 2018-01-23 Ocean Power Technologies, Inc. Improved power take off apparatus for a wec
GB0906111D0 (en) * 2009-04-08 2009-05-20 Current 2 Current Ltd Generation apparatus
US8296151B2 (en) * 2010-06-18 2012-10-23 Microsoft Corporation Compound gesture-speech commands
US8484972B2 (en) * 2010-09-23 2013-07-16 James Chung-Kei Lau Ocean thermal energy conversion (OTEC) electric power plant
US9051914B1 (en) * 2014-01-10 2015-06-09 Ibrahim Hanna Hydrodynamic energy generation system with dual fluid entry system
US9234437B1 (en) * 2014-01-10 2016-01-12 Ibrahim Hanna Hydrodynamic energy generation system with neutralized pressure pump
US20150198137A1 (en) * 2014-01-10 2015-07-16 Ibrahim Hanna Hydrodynamic energy generation system
US9157332B2 (en) * 2014-01-10 2015-10-13 Ibrahim Hanna Hydrodynamic energy generation system with energy recovery and levering subsystem
US20150198138A1 (en) * 2014-01-10 2015-07-16 Ibrahim Hanna Hydrodynamic energy generation system with energy recovery and levering subsystem
CN104933321B (en) * 2015-07-08 2017-08-11 浙江大学 A kind of control method of artificial upper up-flow plume concentration
CN105093924B (en) * 2015-07-08 2017-07-11 浙江大学 A kind of air curtain lifts the control method of eutrophy salt deep sea water
PL423836A1 (en) * 2017-12-11 2019-06-17 Wojciech Bartosz Kulak Tubular energy store
US10605226B2 (en) * 2018-08-14 2020-03-31 Lone Gull Holdings, Ltd. Inertial hydrodynamic pump and wave engine
AU2020389149B2 (en) * 2019-11-23 2025-09-25 Lone Gull Holdings, Ltd. Self-charging autonomous submersible vessel
EP4298336A4 (en) * 2021-02-24 2025-02-26 Erik Svensson POWER PLANT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321720A (en) * 1978-01-17 1982-03-30 Odd Havre Method of transferring a fluid from a station on the sea bed to a vessel, or vice-versa, and a means and a vessel for carrying out the method
US5311064A (en) * 1991-08-19 1994-05-10 Bogumil Kumbatovic Equipment to extract ocean wave power
US6140712A (en) * 1996-04-29 2000-10-31 Ips Interproject Service Ab Wave energy converter
US6916219B2 (en) * 2001-11-09 2005-07-12 Apprise Technologies, Inc. Remote sampling system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1587433A (en) * 1976-09-16 1981-04-01 Loqvist K R Apparatus for utilizing kinetic energy stored in the swell or wave movement of water
US4413956A (en) * 1979-10-01 1983-11-08 Berg John L Wave pump apparatus
GB2084259B (en) * 1980-07-22 1984-06-13 Kawasaki Heavy Ind Ltd Wave activated power generation system
FR2606835B1 (en) * 1986-11-17 1991-04-19 Onde Marcel INSTALLATION FOR TRANSFORMING CINETIC ENERGY OF WAVES INTO MECHANICAL ENERGY
US4914915A (en) * 1989-06-20 1990-04-10 Linderfelt Hal R Wave powered turbine
US6229225B1 (en) * 1997-05-08 2001-05-08 Ocean Power Technologies, Inc. Surface wave energy capture system
DE69817608D1 (en) * 1997-12-03 2003-10-02 William Dick SEA wave transducer
GB0010033D0 (en) * 2000-04-26 2000-06-14 Zaczek M P Renewable energy wave machine
US6768216B1 (en) * 2000-05-26 2004-07-27 Ocean Power Technologies, Inc. Wave energy converters utilizing pressure differences
US6768217B2 (en) * 2002-02-20 2004-07-27 Ocean Power Technologies, Inc. Wave energy converter system of improved efficiency and survivability
US7199481B2 (en) * 2003-11-07 2007-04-03 William Walter Hirsch Wave energy conversion system
JP4112547B2 (en) * 2004-09-30 2008-07-02 東陽設計工業株式会社 Wave power generator
US7323790B2 (en) * 2005-03-15 2008-01-29 Ocean Power Technologies, Inc. Wave energy converters (WECs) with linear electric generators (LEGs)
GB0521356D0 (en) * 2005-10-19 2005-11-30 Marine Current Turbines Ltd Methods and apparatus for the extraction of energy from moving water
US20070284883A1 (en) * 2006-06-07 2007-12-13 Joseph Cafariello Clean energy generation system
US7525214B2 (en) * 2006-06-14 2009-04-28 Nova Oceanic Energy Systems Wave-power system and method for generating energy at constant rotational speed at variable significant wave heights and periods
WO2009009733A1 (en) * 2007-07-11 2009-01-15 Ryan Steelberg A deep water power generation system and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321720A (en) * 1978-01-17 1982-03-30 Odd Havre Method of transferring a fluid from a station on the sea bed to a vessel, or vice-versa, and a means and a vessel for carrying out the method
US5311064A (en) * 1991-08-19 1994-05-10 Bogumil Kumbatovic Equipment to extract ocean wave power
US6140712A (en) * 1996-04-29 2000-10-31 Ips Interproject Service Ab Wave energy converter
US6916219B2 (en) * 2001-11-09 2005-07-12 Apprise Technologies, Inc. Remote sampling system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2171262A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2848802A1 (en) * 2013-09-13 2015-03-18 Ricerca Sul Sistema Energetico - RSE S.p.A. System for obtaining electrical energy from a wave motion
IT201600112969A1 (en) * 2016-11-09 2018-05-09 Maximo Aurelio Peviani System for obtaining electricity from a wave motion.

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CN101802389A (en) 2010-08-11
JP2010533474A (en) 2010-10-21
CA2693782A1 (en) 2009-01-15
US20130154268A1 (en) 2013-06-20
US20130341928A1 (en) 2013-12-26
EA201070128A1 (en) 2010-08-30
US8698332B2 (en) 2014-04-15
US20110278843A1 (en) 2011-11-17
US8742607B2 (en) 2014-06-03
EP2171262A4 (en) 2013-05-15
US20130270830A1 (en) 2013-10-17
US8541896B2 (en) 2013-09-24
US8373290B2 (en) 2013-02-12
US20090015016A1 (en) 2009-01-15
US7969031B2 (en) 2011-06-28
EP2171262A1 (en) 2010-04-07

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