WO2021256947A1 - System using sea waves for accumulating water at certain height - Google Patents

System using sea waves for accumulating water at certain height Download PDF

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Publication number
WO2021256947A1
WO2021256947A1 PCT/RS2021/000008 RS2021000008W WO2021256947A1 WO 2021256947 A1 WO2021256947 A1 WO 2021256947A1 RS 2021000008 W RS2021000008 W RS 2021000008W WO 2021256947 A1 WO2021256947 A1 WO 2021256947A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
tube
desalination
certain height
accumulation
Prior art date
Application number
PCT/RS2021/000008
Other languages
French (fr)
Inventor
Zoran Gutovic
Original Assignee
Zoran Gutovic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zoran Gutovic filed Critical Zoran Gutovic
Publication of WO2021256947A1 publication Critical patent/WO2021256947A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • 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
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/107—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • 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
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • F03B13/187—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem and the wom directly actuates the piston of a pump
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/144—Wave 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 invention belongs to the area of Production, transformation, and distribution of the electricity as well as to the area of Methods or facilities for extraction or collection of the drinking or running water.
  • IPQ International Patent Qualification
  • the invention solves the construction problem of the system that is used for production of the electricity and at the same time and upon need, for desalination of the sea and ocean water.
  • the system consists of the working float connected with sealing piston that could move up and down along the working cylinder with one-way valves, inlet and outlet, for the purpose of retracting and pushing the water, pipes that lead the pushed water to the certain height, an accumulation tank for the raised water, a vertical tube that leads the water from the tank to the turbine blades connected with the generator, and upon need, to the tank for the evaporation of the sea water at the particular height from which.is possible to direct previously condensed water, under pressure, to the consumer or for the further processing.
  • Fig.l- presents side image of the System (reduced size) with demonstration of the basic elements of its functional connection.
  • Fig. 2 - shows side image of the stabilator with part of the System exposed to progressive movement of the waves.
  • Fig. 3 - shows axiomatic presentation of protection part of the System exposed to progressive wave impact.
  • the picture shows System that uses sea waves for accumulation of the water on certain height in orderto use it for production of the electricity and upon need, for desalination by evaporation and it consists of working float (1) moving under the impact of the sea waves along a compression cylinder (2) in which is a sealing piston (4) linked with a firm assembly (5) connected with inner cylinder (3) that goes through the middle of the float (1) and should have the greatest mass of the float (1) distributed around.
  • On the compression cylinder (2) should be one-way inlet valves (6) or (7) or both; the water comes through them into the cylinder when the wave lifts the float (1) and one-way outlet valve (8) after the passing of the wave, compresses the water with weight of the float (1) and sealing piston (4).
  • One-way valve (8) opens the passage for the constricted water into buoyancy tube (9) which could lead directly into the tank (10) if the aim is the accumulation for production of the electricity by water collapsing from the certain height, or it could be sent by a prong (12) into an evaporator (11) filling it up to certain height with a help of a self-closure system that could be solved in different well known ways, and here, it is presented with elements 14, 15, 16, 17 and 31; floating porous plate (17) should be balanced by floats (16) so it is kept afloat under the water level in the evaporator and it is used for additional heating of the water which, however, gets larger amount of the heath from the evaporator sphere (11).
  • This porous plate (17) could be linked with a tube (20) shutter (19) that serves to lead collected salt or highly concentrated salty water for storing or further processing. This could be the result, but it mustn't be, since this opening could be solved automatically with remote control or mechanically as with tube (26) where the water from the tank (10) down flaws onto the turbine (27).
  • a slot (14) on the part of the tube (12) which is inside of the evaporator (11) and contains a wedge (15) on the rim of the round porous plate (17) that is kept afloat with a float (16) made of cork, styrofoam, hollow pipe or similar light weight material.
  • the magnets (31) that hold the wedges (15) are placed opposite to keep the balance.
  • the tank (10) While the process is taking place in the evaporator (11) the tank (10) is filled up from the flow cooler (24). If there is no unit for desalination by evaporation (11) or if one phase of this system is omitted, the water from the tube (9) would go directly to the tank (10). The bottom of the tank (10) shaped as a funnel extends to the vertical tube (26). Accumulated water, via the system (29) is let to flow in controlled amount with free fall down the vertical tube (26), it drops onto the turbine blades (27) and its turning starts the generator (28).
  • the firm link with the sea bottom is used in a form of stabilator (30). It is possible to use the prongs (32) placed symmetrically on the envelope (36) that also contains floats (35) with rings (33) at their ends. Through these rings, pass the stabilising pillars (34) in a way of allowing free movement of the working float, up and down along the pillars (34).
  • Protection of the working float (1) from the progressive movement of the sea waves could be also secured with a protective rampart (37) made of cylinder halves whose ends overlap along the axis. Alternatively it can be done (not shown here) by placing the system for transformation of progressive sea waves into electricity under the working float (1).
  • Evaporation tank (11) with its stabilising system (30) as well as accumulation tank (10), could be in the sea but also on the land, especially if the shore line is raised up enough to enable building of the accumulation tank (10), for example, in a form of a sunken pool with exhaust vertical tube (26) whose ends lead to the sea level.

Abstract

A system using sea waves for accumulating water at certain height to use it for electricity production, and for desalination, if needed, wherein the system contains a working float (1) connected with a sealed piston (4) movable inside a cylinder (2) equipped with inlet and outlet valves (6, 7; 8), to pump the seawater via the buoyancy tube (9) into the accumulation tank (10) from which the water flows to a turbine (27) to actuate a generator (28). The device is designed to pump the water into the desalination device comprising an evaporator (11) and a flow cooler (24) as well.

Description

SYSTEM USING SEA WAVES FOR ACCUMULATING WATER AT CERTAIN HEIGHT
Technical field concerning the invention
The invention belongs to the area of Production, transformation, and distribution of the electricity as well as to the area of Methods or facilities for extraction or collection of the drinking or running water. According to International Patent Qualification (IPQ) references are E02B, E03B and F03B.
Technical problems
The invention solves the construction problem of the system that is used for production of the electricity and at the same time and upon need, for desalination of the sea and ocean water.
Technical conditions
The system for the use of sea waves for production of the electricity, so far, has been realised in different ways. All of these solutions are mostly based on direct transformation of the mechanical energy of the waves into electricity. It has many deficiencies since the sea waves impact is periodical and the electricity with its practical application demands continuity. Also, electricity is needed when the waves are absent, so the accumulation system that solves the problem of continual production of electricity from the sea waves, in certain period of time or permanently, would be a solution for mentioned problem.
Presentation of the invention essence
The system consists of the working float connected with sealing piston that could move up and down along the working cylinder with one-way valves, inlet and outlet, for the purpose of retracting and pushing the water, pipes that lead the pushed water to the certain height, an accumulation tank for the raised water, a vertical tube that leads the water from the tank to the turbine blades connected with the generator, and upon need, to the tank for the evaporation of the sea water at the particular height from which.is possible to direct previously condensed water, under pressure, to the consumer or for the further processing.
Short descriptions of draft pictures
The invention is described in detail in the performance example presented in the draft in which:
Fig.l- presents side image of the System (reduced size) with demonstration of the basic elements of its functional connection.
Fig. 2 - shows side image of the stabilator with part of the System exposed to progressive movement of the waves.
Fig. 3 - shows axiomatic presentation of protection part of the System exposed to progressive wave impact. Detailed description of the invention
The picture shows System that uses sea waves for accumulation of the water on certain height in orderto use it for production of the electricity and upon need, for desalination by evaporation and it consists of working float (1) moving under the impact of the sea waves along a compression cylinder (2) in which is a sealing piston (4) linked with a firm assembly (5) connected with inner cylinder (3) that goes through the middle of the float (1) and should have the greatest mass of the float (1) distributed around. On the compression cylinder (2) should be one-way inlet valves (6) or (7) or both; the water comes through them into the cylinder when the wave lifts the float (1) and one-way outlet valve (8) after the passing of the wave, compresses the water with weight of the float (1) and sealing piston (4). One-way valve (8) opens the passage for the constricted water into buoyancy tube (9) which could lead directly into the tank (10) if the aim is the accumulation for production of the electricity by water collapsing from the certain height, or it could be sent by a prong (12) into an evaporator (11) filling it up to certain height with a help of a self-closure system that could be solved in different well known ways, and here, it is presented with elements 14, 15, 16, 17 and 31; floating porous plate (17) should be balanced by floats (16) so it is kept afloat under the water level in the evaporator and it is used for additional heating of the water which, however, gets larger amount of the heath from the evaporator sphere (11). This porous plate (17) could be linked with a tube (20) shutter (19) that serves to lead collected salt or highly concentrated salty water for storing or further processing. This could be the result, but it mustn't be, since this opening could be solved automatically with remote control or mechanically as with tube (26) where the water from the tank (10) down flaws onto the turbine (27). There is a slot (14) on the part of the tube (12) which is inside of the evaporator (11) and contains a wedge (15) on the rim of the round porous plate (17) that is kept afloat with a float (16) made of cork, styrofoam, hollow pipe or similar light weight material. The magnets (31) that hold the wedges (15) are placed opposite to keep the balance. The process of opening and closing of the tube (12) is listed only as possible considering the existence of many known solutions and therefore is not a subject of this patent protection. The important fact is that when the tube (12) gets closed with reached level of the water in the evaporator, the compressed water would continue flow through the tube prong (13) which is on the higher level, so it opens afterwards. From the tube prong (13) water goes into flow cooler (24) that cools the steam in the condensation tube (21) leading from the top of the evaporator (11) wrapped in isolation (22) all the way to flow cooler (24). Cooled steam in the form of condensed, desalinated water is directed for the use or further processing, under the pressure, down the tube (23) and the water from the flow cooler gets out in the place (25) to the tank (10). While the process is taking place in the evaporator (11) the tank (10) is filled up from the flow cooler (24). If there is no unit for desalination by evaporation (11) or if one phase of this system is omitted, the water from the tube (9) would go directly to the tank (10). The bottom of the tank (10) shaped as a funnel extends to the vertical tube (26). Accumulated water, via the system (29) is let to flow in controlled amount with free fall down the vertical tube (26), it drops onto the turbine blades (27) and its turning starts the generator (28).
In order to stabilise working float (1) against progressive movement of the waves, the firm link with the sea bottom is used in a form of stabilator (30). It is possible to use the prongs (32) placed symmetrically on the envelope (36) that also contains floats (35) with rings (33) at their ends. Through these rings, pass the stabilising pillars (34) in a way of allowing free movement of the working float, up and down along the pillars (34).
Protection of the working float (1) from the progressive movement of the sea waves could be also secured with a protective rampart (37) made of cylinder halves whose ends overlap along the axis. Alternatively it can be done (not shown here) by placing the system for transformation of progressive sea waves into electricity under the working float (1).
Evaporation tank (11) with its stabilising system (30) as well as accumulation tank (10), could be in the sea but also on the land, especially if the shore line is raised up enough to enable building of the accumulation tank (10), for example, in a form of a sunken pool with exhaust vertical tube (26) whose ends lead to the sea level.

Claims

Patent Request
1. System that uses sea waves for accumulation of the water on certain height in order to use it for production of the electricity and upon need, for desalination, is characterised with containing two or three functionally connected units; the first one made of working float (1) with inside cylinder (3) with firm link (5) is connected to sealing piston (4) that could be moved up and down along the compression cylinder (2) secured by stabilator (30) on which are one-way inlet valves (6) or (7) or both and one-way outlet valve (8) positioned on the entry of buoyancy tube (9) which could lead directly to accumulation tank (10) and from its lowest point leads vertical tube (26) that has at the opening a regulator of the flow (29) and at the bottom, a turbine (27) connected with a generator (28). If this system is used for desalination of the water than the buoyancy tube (9) has a fork in a way that lower level accommodates a tube (12) into evaporator (11) where water comes to the certain level up to the point of closing this tube (12) in a way that water flows to slightly higher prong (13) and connects with a flow cooler (24) and flows out in the place (25) into accumulation tank (10) cooling the tube in a process (21) that gets from the top of the evaporator (11) a collected aerated water, and condensed, desalinated water goes down the tube (23).
2. System that uses sea waves for accumulation of the water on the certain height for its use for production of the electricity and upon need, for desalination, according to the request 1, is characterised with, in order to have additional stabilisation of the working float (1) it has symmetrically positioned prongs (32) on the rim, with floats (35) on whose ends are rings or half rings (33) that wrap the pillars (34) firmly buried in a way that working float (1) with prongs (32) can easily move up and down along the pillars.
3. System that uses sea waves for accumulation of the water on the certain height for its use for production of the electricity and upon need, for desalination, according to the request 1, is characterised with, in order to have additional stability of the part with working float (1) is surrounded by protective barrier (37) in the shape of half cylinder walls, retracted to the point of substantial overlap.
PCT/RS2021/000008 2020-06-18 2021-06-16 System using sea waves for accumulating water at certain height WO2021256947A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RS20200730A RS20200730A1 (en) 2020-06-18 2020-06-18 System which uses sea waves to accumulate water at a certain height for electricity generation, optionally desalination
RSP-2020/0730 2020-06-18

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Publication Number Publication Date
WO2021256947A1 true WO2021256947A1 (en) 2021-12-23

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WO (1) WO2021256947A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004219A1 (en) * 1984-03-12 1985-09-26 Wave Power Industries, Ltd. Wave powered generator
US4555307A (en) * 1983-07-20 1985-11-26 Williams, Inc. Sea water distillation system
US5217324A (en) * 1991-07-17 1993-06-08 Freelain Kenneth W Dynamic breakwater and pumping system
US20100264658A1 (en) * 2009-04-20 2010-10-21 Manuel Torres Martinez Power station on a submerged floating platform

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4555307A (en) * 1983-07-20 1985-11-26 Williams, Inc. Sea water distillation system
WO1985004219A1 (en) * 1984-03-12 1985-09-26 Wave Power Industries, Ltd. Wave powered generator
US5217324A (en) * 1991-07-17 1993-06-08 Freelain Kenneth W Dynamic breakwater and pumping system
US20100264658A1 (en) * 2009-04-20 2010-10-21 Manuel Torres Martinez Power station on a submerged floating platform

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