GB2143284A - Energy conversion apparatus - Google Patents
Energy conversion apparatus Download PDFInfo
- Publication number
- GB2143284A GB2143284A GB08316020A GB8316020A GB2143284A GB 2143284 A GB2143284 A GB 2143284A GB 08316020 A GB08316020 A GB 08316020A GB 8316020 A GB8316020 A GB 8316020A GB 2143284 A GB2143284 A GB 2143284A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- chamber
- energy conversion
- conversion system
- liquid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
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
- F03B13/12—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
- F03B13/141—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 with a static energy collector
- F03B13/142—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 with a static energy collector which creates an oscillating water column
-
- 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
- F03B17/00—Other machines or engines
- F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
-
- 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
Abstract
An apparatus for conversion of the energy of a stream of naturally moving liquid into a more readily useable form comprises a flexible or rigid container 1 into and from which a liquid (such as water) is alternately introduced and released via valves 4, 6, thereby producing flow of a gas (such as air) out of and into the container and through an adjacent turbine unit 7 linked to a generator, hydraulic pump or mechanical power takeoff. A diaphragm or other means may separate the gas and liquid. <IMAGE>
Description
SPECIFICATION
Energy conversion apparatus
This invention relates to energy conversion apparatus, suitable for conversion of the energy in a stream of moving liquid into a more readily useable form. The moving liquid may be the flow in a natural watercourse or a manmade channel or the outflow from a naturally occurring or impounded body of liquid including impounded tidal waters.
Machines commonly in use for extracting energy from a flow of liquid have characteristically low rotational speeds and low efficiency of energy transfer whenever, due to low pressure head, the velocity of liquid entering the machine is low. In these circumstances, the rotational speed of the machine may be too low to effectively generate electricity from a generator connected to it (which is a common arrangement) unless a gearbox be used to increase the rotational speed of the generator. The use of such a gearbox involves additional cost and further loss of energy. Also, under such conditions, the flow can comprise a mixture of air and liquid which can cause excessive wear of and damage to the machine.
In particular, this invention concerns the utilisation of a flexible or rigid bag, container or chamber into which a liquid, such as water, is introduced in order to displace fluid, such as air, within the bag, container or chamber, in order to drive a prime mover, such as a turbine unit. By the use of a suitable turbine, a higher rotational velocity more suited to directly driving a generator or pump may be obtained by a machine placed in the flow of fluid than could be obtained by placing the machine in the flow of liquid which displaced it.By this means, power may efficiently be derived from a stream of liquid of low velocity due to low pressure head which may not at present be efficiently used and where such stream uses an impoundment of liquid less extensive impounding structures are required on account of the low useable head and such structures may taken the form of an inflatable bank or dam.
In accordance with the invention, the fluid displaced from a substantially enclosed chamber or container into which liquid is admitted is passed through a rotor or turbine which it causes to turn rotationally. When the liquid within the chamber reaches a certain quantity, the supply is terminated by the operation of a suitable valve or valves. By operation of a further valve or valves the liquid is allowed to leave the chamber and fluid is drawn into the chamber. The turbine may employ blades of symmetrical aerofoil section set at right angles to the axis of rotation (sometimes known as a 'Wells' turbine) so that it continues to rotate in the same direction when fluid passes through in one direction as it leaves or the opposite direction as it re-enters the container or chamber.Other forms of turbine are known which have the same property of unidirectional rotation in reversing flows and which would also be suitable.
As alternatives, suitable arrangements of valves may be used so that fluid leaving and re-entering the container or chamber passes through the turbine unit in the same direction. In such alterantives, the turbine unit may be any of a number of commonly used types.
It may be desirable in some circumstances that the liquid in the container or chamber should be separated from the fluid passing through the turbine unit in order that damp or liquid-carrying fluid may not damage the turbine unit or any electrical generator, hydraulic pump or mechanical drive attached to it.
This may be done by having a free float or piston which rises on the liquid surface.
By another method, a layer of buoyant spheres or granules floating on the surface may be used to separate the fluid from the liquid.
Alternatively, a flexible diaphragm may be used, which is displaced by liquid entering the container or chamber. In another arrangement, the container or chamber into liquid is passed may enclose a bag or flexible container containing fluid which is expelled from the bag or container by liquid entering into the outer container or chamber. The diaphragm may cover cavities or sub-chambers within the main chamber. In an alternative configuration, the chamber itself is flexible or in the form of a bag so that a measure of fluid displacement is obtained by deformation of the chamber as well as by the rising liquid level.
This arrangement may have an internal diaphragm or membrane to keep separate the liquid from the fluid.
Although until now a single container or chamber necessary to implement the invention has been described, it may be desirable to employ a plurality of containers or chambers so that suitable diverters or valves may be used to pass liquid successively into each chamber and fluid in turn from each chamber through the turbine unit.
Although in such arrangements the fluid may pass out of the machine after its passage through the turbine unit, it may be desirable for it to pass to a chamber from which liquid is being evacuated.
Suitable valve arrangements may use single valves or a linearly or rotationally sliding or rotating valves with ports such as sleeve valves. Liquid flow may also be controlled by making and breaking syphonic action in the inlet and outlet pipes.
The turbine unit may be used to drive an electrical generator, low-pressure or high-pressure hydraulic pump or mechanical drive.
Where in the foregoing description we referto turbine unit as singular the arrangement may also include plurality of rotors mounted on a common shaft or plurality of passageways in parallel.
Embodiments of the present invention will now be described, by way of example, with reference to the accompanying drawings, wherein:
In Figure 1 item 1 is the container or chamber which preferably is rigid but in alternative arrangements may be of flexible material. Preferably it is of rectilinear shape but in alternative arrangements may be of any convenient shape. Liquid is supplied to the container or chamber by a pipe or main (3), its flow being started or stopped by operation of the valve (4). Liquid leaves the container or chamber by a second pipe (5) wherein the flow is started or stopped by operation of a second valve (6). Preferably there is a single inlet pipe and valve, and a single outlet pipe and valve but in alternative arrangements plurality of pipes and valves for inlet or outlet of liquid or plurality of valves from single inlet or outlet pipes may be provided.The inlet is preferably at the bottom of the container or chamber but in an alternative arrangement it may be placed at any suitable point in the container or chamber. The outlet is placed substantially towards the bottom of the container or chamber. Liquid enters the inlet port while the outlet port is closed. Fluid expelled from the container or chamber on account of the entry of liquid into it passes through a passage (2) and a turbine chamber (7) causing the turbine unit to rotate at speed. Entry of liquid continues until a suitable quantity is in the container or chamber.This quantity is detected by suitable means which may preferably be a liquid level detector (8) but in alternative arrangements may be a pressure detector (9), a liquid height detector (10), a detector (11) of the turbine unit rotational speed, a detector (12) of the turbine unit shaft torque (8e), pressure detectors (13 and 14) which enable the fluid flow velocity or pressure drop across the turbine unit to be measured, or other suitable detectors. In another embodiment, the quantity of liquid may be that present after a certain period of time has elapsed from the start of filling the container or chamber.When the preferred quantity of liquid is present in the container or chamber valve 4 is closed and after a suitable interval valve 6 is opened, allowing liquid to leave the container or chamber and drawing fluid back into the container or chamber through the turbine unit and fluid transfer passage. Preferably, the turbine unit is of a type wherein it maintains the same direction of rotation whenever fluid is passed through it in one direction as it leaves the container or chamber and whenever fluid passes through it in the opposite direction as it re-enters the container or chamber. In alternative arrangements, suitable valves or flow diverters enable the fluid to be passed in the same direction through a suitable turbine unit as it leaves or re-enters the container or chamber.
Once a certain minimum quantity of fluid remains in the container or chamber (as detected by a further level detector (15) or by any of the means described above), the outlet valve 6 is closed, the inlet valve 4 is re-opened and the cycle is repeated.
Preferably, the liquid within the container or chamber will be substantially separated from the fluid which is passed through the turbine unit or order to reduce wear of or damage to the turbine unit or any electrical generator, hydraulic pump or mechanical drive connected to it. In Figure 2 separation is achieved by means of a buoyant float or free piston (16) or buoyant spheres or particles (17) which float upon the surface of the fluid.
In another arrangement, Figure 3, a flexible diaphragm or membrane within the container or chamber which is substantially vertical when the container or chamber is substantially empty of liquid (18a) is deflected towards the wall of the container or chamber by liquid entering (18b) thereby displacing fluid outwards and acting in the reverse direction as the liquid level in the container or chamber falls. In a further arrangement, Figure 4, the diaphragm or
membrane (19a) covers a cavity or sub-chamber (20) within or adjacent to the wall of the container or chamber.Liquid entering the container or chamber again deflects the diaphragm or membrane (19b) so that fluid is expelled from the container or chamber through the fluid transfer passage and the turbine unit, fluid above the liquid surface being allowed to leave and re-enter the container or chamber by means of a vent or two-way valve (21). In Figures 3 and 4 the separate parts of the container or chamber which contain liquid and fluid respectively may in an alternative arrangement be substantially co-axial with the part containing fluid substantially forming an annular space around the first part.
Figure 5shows a further embodiment in which separation if the liquid and fluid is achieved by means of a complete bag (22a, b) within the container or chamber, fluid above the liquid surface being allowed to leave and re-enter the container or chamber by means of a vent or two-way valve (23).
Figure 6 shows a preferred arrangement for the turbine unit wherein the turbine is a single rotor (24) of the type known as a 'Wells' turbine mounted upon a shaft (25) which can drive a suitable electrical generator hydraulic pump or mechanical drive. In
Figure 7, an alternative arrangement utilises a plurality of Wells rotors (26a, b, c etc) mounted upon a common shaft. Alternatively, other turbine rotors are known which may be used in the foregoing arrangements and have the same property of unidirectional rotation in forward and reverse flows.
Figure 8 shows a further arrangement in which single or plural rotors of Wells or other type as described above are mounted within a plurality of conduits (27a, b, c) connected to the or one of fluid transfer passages leading from and to the container or chamber.
In a further arrangement, the turbine unit as described above may contain a rotor or plurality of rotors which are of any known type which do not of necessity rotate unidirectionally in reversing forward and rearward flow. In such an arrangement, the fluid flow may need to be in the same direction through the rotor whether fluid is leaving or re-entering the container or chamber. Figures 9ba) and 9(b) show one arrangement of valves which, by opening and closing the valve or diverter (28) and reversing the valves or diverters (29, 30), enables the nonreversing flow required in this arrangement to be achieved.
The liquid inlet and outlet valves may preferably be individual gate, flap, butterfly or other suitable valves commonly used to regulate liquid flows. In an alternative arrangement shown in Figures 10(a) and 10(b), a sliding valve (31) is shown which is operated in a reciprocating manner whenever required by an appropriate detector (exemplified by items 8-14) to do so in order to uncover and cover successively the inlet and outlet ports. In a further arrangement,
Figure lithe inlet and outlet ports are successively uncovered and covered by a rotating plate (32) containing a hole, revolving about an axis(34).
Figure 12{at and (b) show a further arrangement by which a sleeve valve (35) surrounds a pipe (36) wherein a partition (37) forms two conduits which serve as inlet (38) and outlet (39) pipes. In the position shown in Figure 12(a), a port in the first conduit of the pipe and a port in the sleeve arealigned with the inlet pipe(3) to the container or chamber(1), allowing liquid to enter. On signals from a suitable detector (exemplified by 8-14) the sleeve is rotated coaxially with the pipe through an angle which then allows the port in the sleeve and a second port in the second conduit of the pipe to be aligned with the outlet pipe(5) from the container or chamber, allowing liquid to leave the container or chamber.
The embodiments described heretofore comprise a single container or chamber out of which fluid is expelled and from outside which fluid is drawn in again. Preferably, the energy conversion system consists of a plurality of such containers or chambers. Figure 13 shows two such containers or chambers arranged so that liquid is entering a first (40) at the same time as liquid is leaving a second(41) and as the cycle proceeds fluid is passed to and fro between the chambers through the turbine unit (42). In this arrangement, air is substantially retained within the system which is beneficial for wear of and damage to the turbine and power generation components of the system. Other arrangements are possible wherein plurality of chambers pass fluid between themselves through a or plurality of common turbine units so that the power output from a system of conventiently sized units may be aggregated to the total required and by the same method timewise variations of power output may be reduced.
Claims (46)
1. A container or chamber for the energy conversion apparatus indicated herein, wherein liquid is alternately admitted to and allowed to leave from the container or chamber and the container or chamber has coupling passage means for the expulsion of fluid therefrom and for the induction of fluid thereinto as liquid respectively enters and leaves the container or chamber so that fluid expelled from and redrawn into the container or chamber can be used to drive a suitable rotationally turning turbine unit, which is provided with connection means for driving an electrical generator or hydraulic pump, at a velocity of rotation substantially suited to the designed velocity of rotation for optimum operation of the electrical generator or pump, without the need for interposing means for substantial change of rotational velocity between the turbine unit and the said generator or pump, or for driving mechanical power take-off means.
2. A container or chamber according to claim 1 wherein a float or free on floats upon the liquid surface in order to substantially separate the liquid from the fluid.
3. A container or chamber according to claim 1, wherein the material forming the container or chamber is flexible so that fluid is in some part expelled from and drawn into the container or chamber due to change in its shape as liquid admitted to and evacuated from it in addition to expulsion due to the introduction of liquid into the container or chamber and induction due to release of liquid from the container or chamber.
4. A container or chamber according to claim 1 or claim 3, wherein spheres or particles of buoyant material float on the surface of the liquid in order to substantially separate the liquid from the fluid.
5. A container or chamber according to claim 1 or claim 3, wherein there is at least one sensibly vertical diaphragm or membrane within the container or chamber in order to separate the liquid from the fluid.
6. A container or chamber according to claim 5, wherein the or a diaphragm or membrane is sensibly co-axial within the container or chamber.
7. A container or chamber according to claim 5, wherein one at least of the diaphragms or membranes separates the liquid from fluid which is within a cavity or plurality of cavities adjacent to the container or chamber.
8. A container or chamber according to claim 1 or claim 3, wherein at least one bag located within the container or chamber separates the liquid from the fluid.
9. A container according to claim 3 wherein an internal diaphragm or membrane separates the liquid from the fluid.
10. A rigid or flexible container or chamber for the energy conversion system indicated herein, substantially as hereinbefore described with reference to Figures 1 to 5 of the accompanying drawings.
11. An energy conversion system comprising a container or chamber according to any one of the preceding claims wherein the coupling passage means can couple with a rotationally turning turbine unit for the provision of shaft energy by virtue of the forward and rearward flow of fluid through the conduit by virture of liquid entering into and exiting from the container or chamber.
12. An energy conversion system according to claim 11 wherein the turbine unit comprises a single turbine rotor mounted on a shaft.
13. An energy conversion system according to claim 11 wherein the turbine unit comprises a plurality of turbine rotors mounted on a common shaft.
14. An energy conversion system, wherein the turbine unit comprises a plurality of turbines according to claim 12 or claim 13 in parallel conduits having interconnection with a common container or chamber.
15. An energy conversion system according to claims 12, 13 or 14, wherein the or each turbine rotor turns rotationally in the same direction of rotation whenever a fluid flows through it alternately in a first direction and then in a second opposite direction.
16. An energy conversion system according to claim 15 wherein the or each turbine rotor is of a type which employs blades of symmetrical aerofoil section set at right angles to its axis of rotation (sometimes known as a 'Wells' turbine).
17. An energy conversion system, wherein suitable arrangement of valves or flow diverters causes the fluid to flow in the same direction through a suitable turbine unit according to claim 12, 13 or 14, with the same direction of flow whether it be leaving or entering the container or chamber.
18. An energy conversion system substantially as hereinbefore described, with reference to Figures 1 to 9b of the accompanying drawings.
19. An energy conversion system according to any one of the preceding claims wherein liquid is admitted to and evacuated from the container or chamber by means of valves attached or adjacent to the container or chamber.
20. An energy conversion system according to claim 19 wherein liquid is admitted to and evacuated from the container or chamber by means of individual valves for flow interruption and release.
21. An energy conversion system according to claim 19 wherein liquid is admitted to and evacuated from the container or chamber by means of at least one sliding valve which has ports appropriately positioned to regulate the flow of liquid into and out of the container or chamber at suitable times.
22. An energy conversion system according to claim 21 wherein the or at least one regulating valve slides in a linear direction.
23. An energy conversion system according to claim 21 wherein the or at least one regulating valve slides in a non-linear direction.
24. An energy conversion system according to claim 21 wherein the or at least one regulating valve comprises substantially concentric cylinders which slide rotationally in the manner known as a sleeve valve.
25. An energy conversion system substantially as herein before described, with reference to Figures 1 to 12b of the accompanying drawings.
26. An energy conversion system according to any one of the preceding claims wherein the turbine unit drives at least one electrical generator.
27. An energy conversion system according to any one of claims 1 to 25 wherein the turbine unit drives at least one hydraulic pump.
28. An energy conversion system according to any one of claims 1 to 25 wherein the turbine unit drives at least one mechanical power takeoff means.
29. An energy conversion system according to any one of the preceding claims wherein the valves are caused to operate after suitable time intervals.
30. An energy conversion system according to any one of claims 1 to 28 wherein the valves are caused to operate by signals from at least one device which detects the quantity of liquid which has entered or remains within the container or chamber,
31. An energy conversion system according to claim 30 wherein the or at least one detecting device is a liquid level detector.
32. An energy conversion system according to claim 30 wherein the or at least one detecting device is a liquid pressure detector.
33. An energy conversion system according to claim 30 wherein the or at least one detecting device is a liquid depth detector.
34. An energy conversion system according to any one of claims 1 to 28 wherein the valves are caused to operate by signals from at least one device which detects conditions of the turbine unit.
35. An energy conversion system according to claim 34 wherein the or at least one detecting device is a detector of turbine unit rotational velocities.
36. An energy conversion system according to claim 34 wherein the or at least one detecting device is a detector of turbine unit torque.
37. An energy conversion system according to claim 34 wherein the or at least one detecting device is for the detection of the flow velocities within or through the turbine unit.
38. An energy conversion system according to claim 34 wherein the or at least one detecting device is for the detection of the pressure changes within or through the turbine unit.
39. An energy conversion system according to any one of the preceding claims wherein the means of operation of the or an inlet valve may be different from the means of operation of the or an outlet valve.
40. An energy conversion system according to any one of the preceding claims wherein the fluid after passage from the container or chamber through the turbine unit is released from within the system and fluid is drawn in again from without the system through the turbine unit into the container or chamber.
41. An energy conversion system according to any one of claims 1 to 39 wherein the fluid after passage from the container or chamber through the turbine unit is passed to at least one storage container or chamber and the fluid is drawn in again from the said storage means through the turbine unit into the container or chamber to and from which liquid is alternately admitted and released.
42. An energy conversion system according to any one of the preceding claims comprising a single operating container or chamber coupled to a single turbine unit, substantially as herein before described, with reference to Figures 1 to 12b of the accompanying drawings.
43. An energy conversion system according to any one of claims 1 to 41 comprising a single operating container or chamber coupled to a plurality of turbine units, substantially as hereinbefore described, with reference to Figures 1 to 12b of the accompanying drawings.
44. An energy conversion system according to any one of the preceding claims wherein the fluid flow is passed between a plurality of containers or chambers such that the flow between chambers passes through a common turbine unit, wherein in each or in several of the containers or chambers, flow of liquid into and out of the container or chamber is suitably timewise regulated so as to reduce the amount of variations in rotational velocities in the turbine unit.
45. An energy conversion system according to any one of the preceding claims wherein the flow of fluid between plurality of containers or chambers passes through a plurality of turbine units.
46. An energy conversion system substantially as hereinbefore described, with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08316020A GB2143284A (en) | 1983-06-11 | 1983-06-11 | Energy conversion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08316020A GB2143284A (en) | 1983-06-11 | 1983-06-11 | Energy conversion apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8316020D0 GB8316020D0 (en) | 1983-07-13 |
| GB2143284A true GB2143284A (en) | 1985-02-06 |
Family
ID=10544130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08316020A Withdrawn GB2143284A (en) | 1983-06-11 | 1983-06-11 | Energy conversion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2143284A (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0198445A1 (en) * | 1985-04-16 | 1986-10-22 | Hydro Energy Associates Limited | A pneumatic hydro-electric power conversion system |
| GB2210107A (en) * | 1987-09-21 | 1989-06-01 | Secretary Energy Brit | Device for deriving energy from a liquid flow |
| EP0339246A1 (en) * | 1988-04-26 | 1989-11-02 | Hydro Energy Associates Limited | A method of converting energy in a stream of moving liquid |
| GB2218156A (en) * | 1988-04-26 | 1989-11-08 | Hydro Energy Ass Ltd | Pneumatic hydro-electric power conversion apparatus |
| GB2221958A (en) * | 1988-08-04 | 1990-02-21 | Edward Garside | Pipe network for extracting energy from ocean waves and tidal flows |
| GB2233045A (en) * | 1989-02-07 | 1991-01-02 | William Kingston | Hydraulic control system |
| GB2245031A (en) * | 1990-06-11 | 1991-12-18 | Denis Joseph Rowan | Wave power resonance generator |
| GB2300886A (en) * | 1995-02-07 | 1996-11-20 | Conair Limited | Reversible flow turbine |
| ES2171358A1 (en) * | 2001-01-25 | 2002-09-01 | Moure Eugenio Salutregui | Electrical energy obtained from flat wave energy. Principally waves. Wave motor centre. |
| GB2403986A (en) * | 2003-07-15 | 2005-01-19 | Paul Kristian Hatchwell | Tidal energy system for power generation or storage |
| WO2008001057A1 (en) | 2006-06-27 | 2008-01-03 | Innova Limited | Apparatus for converting wave motin into mechanical energy |
| EP2034177A1 (en) * | 2007-09-05 | 2009-03-11 | Earthfly Holding GmbH | Method and device for generating energy from hydropower |
| GB2460763A (en) * | 2009-03-23 | 2009-12-16 | Guy Andrew Vaz | Hydropower generation from ocean currents |
| ITRN20080044A1 (en) * | 2008-07-22 | 2010-01-23 | Alberto Donini | CONTAINER TOTALLY OR PARTIALLY FLEXIBLE, POSITIONED ON THE SURFACE OF THE SEA OR UNDER IT, FOR THE PRODUCTION OF ELECTRIC ENERGY AT LOW COST FROM THE WAVE |
| US7960851B2 (en) * | 2006-04-21 | 2011-06-14 | Van Huffel Phillip L | Power generator and method for generating power |
| WO2013009198A1 (en) * | 2011-07-08 | 2013-01-17 | Petersen Peter Alfred | Sea wave energy recovery installation |
| ITME20120012A1 (en) * | 2012-10-05 | 2014-04-06 | Spada Francesco La | TURBINE ROTOR UNIT |
| NO342723B1 (en) * | 2017-01-06 | 2018-07-30 | Venaas Karl | energy Conversions |
| WO2018191779A1 (en) * | 2017-04-18 | 2018-10-25 | Pieter Jan De Geeter | "wave energy converter" |
| WO2023139345A1 (en) * | 2022-01-18 | 2023-07-27 | Bateman Paul Andrew | A system for harnessing a pressure fluctuation of a liquid |
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| US2484183A (en) * | 1945-04-17 | 1949-10-11 | Bernard J Paulson | Hydropneumatic power plant |
| GB1492427A (en) * | 1975-03-27 | 1977-11-16 | Fukada H | Apparatus for generating electric power by wave energy and dissipating waves |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008001057A1 (en) | 2006-06-27 | 2008-01-03 | Innova Limited | Apparatus for converting wave motin into mechanical energy |
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| ITRN20080044A1 (en) * | 2008-07-22 | 2010-01-23 | Alberto Donini | CONTAINER TOTALLY OR PARTIALLY FLEXIBLE, POSITIONED ON THE SURFACE OF THE SEA OR UNDER IT, FOR THE PRODUCTION OF ELECTRIC ENERGY AT LOW COST FROM THE WAVE |
| GB2460763B (en) * | 2009-03-23 | 2010-04-28 | Guy Andrew Vaz | Power generation |
| GB2460763A (en) * | 2009-03-23 | 2009-12-16 | Guy Andrew Vaz | Hydropower generation from ocean currents |
| WO2013009198A1 (en) * | 2011-07-08 | 2013-01-17 | Petersen Peter Alfred | Sea wave energy recovery installation |
| ITME20120012A1 (en) * | 2012-10-05 | 2014-04-06 | Spada Francesco La | TURBINE ROTOR UNIT |
| WO2014054023A1 (en) * | 2012-10-05 | 2014-04-10 | Nardelli Alessandro | Turbine structure and owc device comprising such turbine structure |
| NO342723B1 (en) * | 2017-01-06 | 2018-07-30 | Venaas Karl | energy Conversions |
| WO2018191779A1 (en) * | 2017-04-18 | 2018-10-25 | Pieter Jan De Geeter | "wave energy converter" |
| WO2023139345A1 (en) * | 2022-01-18 | 2023-07-27 | Bateman Paul Andrew | A system for harnessing a pressure fluctuation of a liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8316020D0 (en) | 1983-07-13 |
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| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |