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WO2012125111A1 - Dispositif et procédé pour transformer l'énergie des vagues en énergie électrique - Google Patents

Dispositif et procédé pour transformer l'énergie des vagues en énergie électrique Download PDF

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Publication number
WO2012125111A1
WO2012125111A1 PCT/SE2012/050273 SE2012050273W WO2012125111A1 WO 2012125111 A1 WO2012125111 A1 WO 2012125111A1 SE 2012050273 W SE2012050273 W SE 2012050273W WO 2012125111 A1 WO2012125111 A1 WO 2012125111A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
compartment
liquid
turbine
water
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.)
Ceased
Application number
PCT/SE2012/050273
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English (en)
Inventor
Rickard Nilsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP12757693.2A priority Critical patent/EP2686544A4/fr
Publication of WO2012125111A1 publication Critical patent/WO2012125111A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F03B13/22—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 flow of water resulting from wave movements to drive a motor or turbine
    • 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 relates to a device and a method of transforming energy of water waves into electric energy.
  • floating buoys are used to receive the energy in the waves.
  • the buoys which are repeatedly raised and lowered by the waves are usually anchored to a seabed.
  • the slow repeated movement of the waves in relation to the anchor is then converted to a high working speed of an electric generator by means of some form of switch.
  • An example of such a device is given in the document US 6 388 342.
  • a buoy is shown represented by a platform having a plurality of hydraulic pumps intended during operation to pump sea water into a tank containing compressed air, where it serves to pressurize the sea water . The compressed air then passes then the sea water further to a turbine connected to an electric generator.
  • Common to all these devices is that they have a complex and thus expensive construction. Furthermore, they are rather sensitive to the influence of flora and fauna occurring in the managed sea water, which must be handled by means of filtration and measures in the form of regular supervision.
  • Document U.S. 4392061 discloses an apparatus which utilizes a liquid contained in a compartment where the liquid is moved back and forth in a rocking motion in pace with a wave motion.
  • the liquid powers means to convert energy in the wave motion.
  • the apparatus consists in this case of a large, eg. in a sea area anchored, container arranged to float on the surface and to rocking following the rhythm of the water waves at the location.
  • the container has chambers containing a liquid that moves along the container with the same frequency as the container's rocking motion.
  • the apparatus comprises means, such as turbines, which are positioned along the path of liquid movements in the container in order to seize energy from the wave motion. Said energy is extracted during horizontal movement of water masses between said chambers.
  • the device of FR 2499161 A2 discloses a container holding compartments in several levels, where a certain amount of water is enclosed in the container.
  • the idea of this known device appears to be to arrive at a high potential energy of the water which in several steps is carried upwardly to a higher compartment due to undulations by means of a number of flaps which open and close in pace with the wave motions, whereupon the water flows downwardly through a turbine during conversion of potential energy of water into kinetic energy with the turbine.
  • This stepwise upward transport of water takes place in compartments that are located on the same side of the turbine.
  • a device of this kind is a slow and complex assembly.
  • the known device should require a great height of the waves on the surface so as the bottom of the container shall not prevent the rocking movement if there isn't an undulation at the container's lower part in phase with the waves at the surface.
  • the idea of this known device appears to be to arrive at a high potential energy of the water which in several steps is carried upwardly to a
  • the present invention relates to a method and a device to transform energy of water waves into electric energy.
  • the invention is based on the use of a closed container which is arraanged to float on a water surface, usually in a sea area, in order to utilize the energy of waves at the surface.
  • the container is anchored at a particular position and thus rocks back and forth vertically with the same frequency as the waves at the surface.
  • the rocking motion is achieved by the waves lifting the one or the other end of the container.
  • the container is furthermore filled with liquid to a predetermined subset of its volume, where the contained liquid flows back and forth between its both ends in line with the container's rocking motion caused by the undulation at the surface.
  • the container is positioned so that it floats on the water surface and rocks in the direction of propagation of the waves.
  • the container floats on the water because of the proportion of air contained inside it.
  • each end of the container there is a compartment, arranged for reception and delivery of the contained liquid in response to the rocking motion of the container. Said compartment is thus used as a liquid depot. Between the two compartments there is a central compartment which the contained liquid passes on its way from one compartment at one end of the container to the other compartment at the other end of the container. [0011] When one of said compartments at one end of the container due to wave motion is at a predetermined higher level than the second compartment at the other end of the container, liquid which is in the higher situated compartment flows through the central compartment to the lower located compartment and then passes a turbine located in a channel which is arranged to combine the two compartment whereby the turbine is rotated and electrical energy is generated by a generator connected to said turbine.
  • the liquid flow inside the closed container is arranged to take place in a substantially vertical plane through the container's longitudinal axis, wherein said longitudinal axis should be construed as the direction between the two at each end of the container's located compartments.
  • the container of the device can be designed geometrically in many ways.
  • Characteristic for the device is that it is provided with a centrally disposed water reservoir which is situated above a turbine. Under the turbine there is a drain to receive the liquid passing through the turbine.
  • the principle is such that liquid flows cyclically in pace with the cyclic wave motion: from the drain to one compartment,
  • the two compartments are filled at least partly, alternately, by the back and forth moving liquid mass in the container.
  • the ports are arranged so as to create a channel from one compartment to the other, wherein at least one turbine is passed by the liquid in the channel, as the liquid flows over from one compartment to the other.
  • the ports also referred to as flaps, may be arranged to be opened and closed automatically by the force of the flowing water.
  • counterweights may attached to the ports, so that these are opened, almost by themselves, under the influence of the container's inclination and the force of gravity. Thus, there is no loss of power of the flowing mass of water.
  • An advantage of the device and method of the invention is that it utilizes very few components and a minimum of moving parts.
  • the liquid inside the container is arranged to flow mainly in a pattern back and forth in a vertical level through the container's longitudinal axis.
  • turbines can be arranged for mainly vertical flows of the liquid flowing through the turbine or turbines.
  • the closest prior art, according to US 4392061, where the horizontal water flow is applied the liquid passes the turbines horizontally from a horizontally placed reservoir in relation to the turbine. This results in an uneven load on the turbine blades, because the water level decreases during the output of energy.
  • power is distributed from the liquid evenly over the turbine blades.
  • Fig. 1 depicts a schematic representation of a side view of the inventive device in a horizontal rest position.
  • Fig. 2 depicts a side view of the device of figure 1, which describes how the trapped liquid will move when the container rocks over to the left from the rest position.
  • Fig. 3 shows in a side view corresponding to that of figure 2 the flow of the contained liquid when the container rocks over to the left during normal operation.
  • Fig. 4 shows in a diagram corresponding to figure 3, the flow of the contained liquid when the container rocks over to the right during normal operation.
  • Fig. 5 depicts a very generalized a perspective view where the container of the invention due to wave sinks at its left end and is pushed up at its right end.
  • Fig. 6 depicts in a way corresponding to that of figure 6 how the container of the invention due to wave motion is pushed up at its left hand end and sinks into at its right end.
  • Fig. 7 shows an alternative embodiment of a device according to the invention, wherein a flow to a compartment at the end of the container, and the flow from the same compartment occur via channels which in a vertical plane are arranged parallel to each other. DESCRIPTION OF EMBODIMENTS
  • Figure 1 shows a device 1 according to the invention's aspect of a container 2 in the rest position, ie. under a condition where the container flows horizontally.
  • the container 2 is mentioned to be placed for example at sea, where energy from ocean waves can be recovered and converted into electrical energy by means of the present device.
  • the container 2 is closed and designed to partially, ie. to a particular aliquot, be filled with a liquid 3.
  • water preferably fresh water, as the liquid with which the container 2 is partially filled.
  • the reference numeral 3 should also be interpreted as it can be any liquid, although it is herein referenced only as water.
  • the water aliquot 3 with which the container 2 is partially filled can be determined by the environmental conditions in which the container is used. The aliquot may thus depend on the average wave height occurring on the location, the wavelength which is considered to be the dominant one, and the depth at which the container will flow into the water, as some examples.
  • the container is also provided with anchor. This anchoring can be a rope or chain fixed to one end of the container and attached to the seabed, the container will flow in the wave direction of movement from the anchoring 14.
  • the container 2 is further divided into different sections.
  • the container comprises, in a variant, three tanks connected by tubes, wherein the container is divided into a structure of compartments and channels.
  • Said tanks consist according to the example a centre tank 4 and at the respective end of the container 2, a first tank 5 and a second tank 6.
  • the central tank 4 harbours reservoir 4a, turbine 7 and drain 4b.
  • a first tube 8 connects in the example the central tank 4 to the first tank 5 and a second tube 9 connects the central tank 4 to the second tank 6.
  • the connection between the central compartment 4 and the two tanks 5 and 6 could of course as an alternative be arranged by a plurality of first tubes 8, resp. several other tubes 9.
  • compartments 5a and 6a By use of the tanks 5 and 6 are formed compartments 5a and 6a, one at each end of the container 2.
  • the container 2 is elongated, thereby referred ends of the container are equated with the ends of the container which flow towards or with the waves surrounding the container 2.
  • sealed air bulkheads 5b and 6b are arranged below each of the compartments 5a, 6a at the ends of the container. These air bulkheads 5b, 6b are arranged to balance the container in the water in an advantageous manner. From the first compartment 5a at one end of the container, a first channel 8a runs through the first tube 8 up to and opens into the arranged water reservoir 4a, where the lower partition wall, ie.
  • a second channel 9a runs from the second compartment 6a in the container.
  • the second channel 9a also opens into the water reservoir 4a.
  • the turbine 7 is provided in the central portion of the water reservoir's 4a bottom. This turbine 7 is adapted to be rotated when the water in the water reservoir 4a flows down through the turbine 7 towards the drain 4b of the container's 2 central portion.
  • a third channel 8b connects the drain 4b with the first compartment 5a.
  • a fourth channel 9b connects the drain 4b with the second compartment 6a.
  • Flaps 1 1a, l ib can close or open the said channels 8a, 8b, 9a, 9b in the manner described below. It may further be mentioned that the flaps 11a, 1 lb are a kind of ports which are hinged along one of their edges and thus can rotate an angle around the hinge. Said hinges are marked as small filled black circles in the figures. Other edges of the flaps can, in order to supply a stop and seal, be arranged so that the flap by its own weight or by water pressure fits firmly against a strip, folding, elevation or equivalent in the flap adjoining wall. These details are not shown in the figures.
  • the turbine 7 is connected to a generator 12 by a shaft 13, in which the generator 12 is arranged inside or outside of the container 2. If the container is designed so that the compartment that represents the water reservoir 4a has a raised section, the generator 12 is mounted on the inside. When the turbine 7 is rotated, electrical energy is induced in the generator, from which the electrical energy can be distributed in a manner not described here.
  • FIG. 2 illustrates the start of the movement pattern of the entrapped water 3 when this is put in motion by the lifting force of a wave, which in this case in the figure moves to the right and with its wave crest lifts the right end of the container 2.
  • the flap 1 la opens because of the container's inclination in combination with the gravity and/or by the flowing water flowing forwards from the right end of the channel 8b to the left in the figure.
  • the water 3 will then because of the inclination of the container 2 flow from the drain 4b along the channel 8b through the opened flap 11a, whereby the compartment 5a is filled with water until the container 2 rocks over to the right when a new wave crest reaches the left end of the container.
  • the container 2 may contain multiple bulkheads, created by means of walls arranged in the longitudinal axis of the container 2.
  • the flow in each of the bulkheads will hereby be represented by the flow pattern described above.
  • a turbine can be arranged per bulkhead.
  • each of the bulkheads are equipped with more than one turbine 7, i.e. the use of the concept turbine shall hereby be understood by that it also can refer to a turbine group.
  • Figures 5 and 6 illustrate in very schematic figures in a simplified perspective how the device according to the invention acts in water under the influence of water waves.
  • a wave has lifted the right end of the container 2
  • the wave has lifted the left end of the container.
  • Characteristic for the device in different embodiments is that it is provided with a central compartment, which from a higher to a lower level comprises water reservoir, turbine and drain with operation as described above. Further, the central compartment communicates with a liquid depot at each end of the container.
  • the liquid depots are represented in the given example by the first compartment 5a and the second compartment 6a. The principle is that the liquid depot at one end of the container
  • FIG. 7 A further embodiment of the invention is shown in figure 7, where the channels between the various compartments are arranged in an alternative manner.
  • apertures for those emptying and filling channels can be configured in different geometric ways compared to what is possible by use of the embodiment according to Fig. 1.
  • the inlet and outlet of said channels can be provided in an optimum way to utilize the energy of waves of lower wave height.
  • the check valve 13 is duplicated, in which each of the duplicated check valves 13 is placed in the flow path of the discharge channels 8a, 9a.
  • the container 2 in the direction along its longitudinal axis should be provided with a span in which the energy of wave motion is captured in the most efficient manner.
  • the span is the total extension of the device in the direction of its longitudinal axis, ie. in the direction of wave movement past the device.
  • the channels 8a, 8b resp. 9a, 9b can be given a certain length d. This length d will hereby be the distance between the central compartment 4 and the first 5a and the second compartment 6a respectively.
  • the adaptation to the dominant wavelengths of the site can be achieved by setting the total span of the container to correspond to the order of magnitude of half the average wavelength ⁇ of the said location.
  • the width of the central compartment 4 is set to W and the width of each of the first compartment 5a and the second compartment 6a is set to w, there is thus a relation as follows: W+2w +2d ⁇ ⁇ /2.
  • the distance d between the different compartments 4, 5a, 6a is designed to have an extension being determined by: A/4>d>X716 or preferred: ⁇ /4> d> ⁇ /8.
  • Wave data for the dimensioning can be for example the wave length, the average height and period.
  • the dimensions of the container in the device may vary depending on the wave conditions at the location where it is placed.
  • the ratio of length, width and height be 12m, 10m, resp. 3m.
  • Theoretical calculations indicate that a device according to any of the proposed embodiments can provide about 1 kW per meter width of the container. This effect can be achieved already at one-meter wave height.
  • a total power of 10 kW is obtained from a container which has a width of 10 m and 12 m length in a wave period of 4 seconds in the open sea, where the whole water volume collected at one end of the container flows through the turbine (turbine group) during 2 seconds.
  • a depot at one end of the container would be emptied during approximately half a second, but since the arranged turbine provides a flow resistance, it can be arranged so that the depot is emptied during said 2 seconds, so that the depot is empty or nearly empty even when the container rocks over to the other direction.
  • the calculations have been performed for a container which encloses approximately 15 m of liquid. Further conditions are a medium drop height of 0.78 m
  • the longitudinal axis of the container 2 means the direction between the compartments 5a and 6a at the ends of the container.

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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

L'invention concerne un procédé et un dispositif pour transformer l'énergie des vagues en énergie électrique par utilisation d'une enceinte fermée (2) agencée pour flotter sur la surface de l'eau, son axe longitudinal étant essentiellement dans l'axe de déplacement des vagues qui se produisent sur la surface de l'eau. L'enceinte (2) comprend des compartiments (5a, 6a) qui peuvent communiquer l'un avec l'autre, et qui sont situés sur chaque extrémité de ladite enceinte (2) ; et est remplie d'un liquide (3) selon une aliquote prédéterminée, et lorsque l'un des compartiments (5a, 6a) situé sur une extrémité de l'enceinte (2) se trouve par suite de l'action du mouvement des vagues à un niveau prédéterminé plus élevé que celui du second compartiment (5a, 6a) situé sur l'autre extrémité du récipient (2), le liquide (3) du compartiment le plus élevé (5a, 6a) coule vers le compartiment le plus bas (5a, 6a), puis traverse une turbine (7) dans un trajet d'écoulement, qui à cause de l'inclinaison du récipient (2), relie les deux compartiments (5a, 6a), la turbine (7) étant entraînée en rotation, l'énergie électrique étant générée dans un générateur (12) couplé à la turbine (7) et le mouvement d'écoulement s'effectuant essentiellement dans un sens vertical via l'axe longitudinal du récipient.
PCT/SE2012/050273 2011-03-14 2012-03-12 Dispositif et procédé pour transformer l'énergie des vagues en énergie électrique Ceased WO2012125111A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12757693.2A EP2686544A4 (fr) 2011-03-14 2012-03-12 Dispositif et procédé pour transformer l'énergie des vagues en énergie électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1100185A SE536349C2 (sv) 2011-03-14 2011-03-14 Anordning och metod för omformning av vågkraft till elektrisk energi
SESE1100185-6 2011-03-14

Publications (1)

Publication Number Publication Date
WO2012125111A1 true WO2012125111A1 (fr) 2012-09-20

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PCT/SE2012/050273 Ceased WO2012125111A1 (fr) 2011-03-14 2012-03-12 Dispositif et procédé pour transformer l'énergie des vagues en énergie électrique

Country Status (3)

Country Link
EP (1) EP2686544A4 (fr)
SE (1) SE536349C2 (fr)
WO (1) WO2012125111A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608387A (en) * 2021-06-29 2023-01-04 Havkraft As Energy converter for ocean waves and method for using thereof
US20240200540A1 (en) * 2022-12-14 2024-06-20 Shih-Hsiung Chen Seesaw-type hydroelectric power generation device
US20240240604A1 (en) * 2023-01-17 2024-07-18 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
ES2986240A1 (es) * 2023-04-05 2024-11-08 Univ Del Pais Vasco / Euskal Herriko Unibertsitatea Método y sistema de conversión de energía mecánica de un cuerpo oscilante en energía eléctrica
US12173682B2 (en) 2023-03-16 2024-12-24 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179886A (en) * 1977-11-08 1979-12-25 Junjiro Tsubota Method and apparatus for obtaining useful work from wave energy
US4207739A (en) * 1976-12-22 1980-06-17 Scarpi Bruno D Process and apparatus for harnessing the energy of the swell
FR2499161A2 (fr) * 1979-04-26 1982-08-06 Rodriguez Andre Dispositif flottant transformant le mouvement ondulatoire de la houle marine en energie utilisable industriellement
US4392061A (en) * 1981-02-27 1983-07-05 Yves Dubois Apparatus for utilizing the energy of wave swells and waves
GB2311565A (en) * 1996-03-27 1997-10-01 Andrew Paul Cook Floating wave power device
EP2133555A1 (fr) * 2008-06-11 2009-12-16 Padraig Molloy Convertisseur d'énergie houlomotrice du type élévation d'eau et procédé de conversion d'énergie houlomotrice
AU2010101355A4 (en) * 2010-01-12 2011-01-13 Shih-Hsiung Chen Seesaw-type wave power generating device
WO2012056167A1 (fr) * 2010-10-27 2012-05-03 Geps Innov Dispositif de recuperation d'energie

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455193A1 (fr) * 1979-04-26 1980-11-21 Rodriguez Andre Dispositif flottant transformant le mouvement ondulatoire de la houle marine en energie utilisable industriellement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207739A (en) * 1976-12-22 1980-06-17 Scarpi Bruno D Process and apparatus for harnessing the energy of the swell
US4179886A (en) * 1977-11-08 1979-12-25 Junjiro Tsubota Method and apparatus for obtaining useful work from wave energy
FR2499161A2 (fr) * 1979-04-26 1982-08-06 Rodriguez Andre Dispositif flottant transformant le mouvement ondulatoire de la houle marine en energie utilisable industriellement
US4392061A (en) * 1981-02-27 1983-07-05 Yves Dubois Apparatus for utilizing the energy of wave swells and waves
GB2311565A (en) * 1996-03-27 1997-10-01 Andrew Paul Cook Floating wave power device
EP2133555A1 (fr) * 2008-06-11 2009-12-16 Padraig Molloy Convertisseur d'énergie houlomotrice du type élévation d'eau et procédé de conversion d'énergie houlomotrice
AU2010101355A4 (en) * 2010-01-12 2011-01-13 Shih-Hsiung Chen Seesaw-type wave power generating device
WO2012056167A1 (fr) * 2010-10-27 2012-05-03 Geps Innov Dispositif de recuperation d'energie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2686544A4 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608387B (en) * 2021-06-29 2024-07-31 Havkraft As Energy converter for ocean waves and method for using thereof
GB2608387A (en) * 2021-06-29 2023-01-04 Havkraft As Energy converter for ocean waves and method for using thereof
US20240200540A1 (en) * 2022-12-14 2024-06-20 Shih-Hsiung Chen Seesaw-type hydroelectric power generation device
US12473895B2 (en) * 2022-12-14 2025-11-18 Shih-Hsiung Chen Seesaw-type hydroelectric power generation device
US12173681B2 (en) * 2023-01-17 2024-12-24 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
WO2024155540A1 (fr) * 2023-01-17 2024-07-25 Lone Gull Holdings, Ltd. Pompe hydrodynamique inertielle à recirculation et moteur à ondes
US12435693B2 (en) 2023-01-17 2025-10-07 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
GB2640093A (en) * 2023-01-17 2025-10-08 Lone Gull Holdings Ltd Recirculating inertial hydrodynamic pump and wave engine
US20240240604A1 (en) * 2023-01-17 2024-07-18 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
US12173682B2 (en) 2023-03-16 2024-12-24 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
US12366223B2 (en) 2023-03-16 2025-07-22 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
US12492673B2 (en) 2023-03-16 2025-12-09 Lone Gull Holdings, Ltd. Recirculating inertial hydrodynamic pump and wave engine
ES2986240A1 (es) * 2023-04-05 2024-11-08 Univ Del Pais Vasco / Euskal Herriko Unibertsitatea Método y sistema de conversión de energía mecánica de un cuerpo oscilante en energía eléctrica

Also Published As

Publication number Publication date
EP2686544A4 (fr) 2014-11-26
SE1100185A1 (sv) 2012-09-15
SE536349C2 (sv) 2013-09-03
EP2686544A1 (fr) 2014-01-22

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