FR2955157A1 - SIMPLE DEVICE FOR CONVERTING THE ENERGY OF THE HEAT IN ELECTRICAL ENERGY - Google Patents
SIMPLE DEVICE FOR CONVERTING THE ENERGY OF THE HEAT IN ELECTRICAL ENERGY Download PDFInfo
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- FR2955157A1 FR2955157A1 FR1002834A FR1002834A FR2955157A1 FR 2955157 A1 FR2955157 A1 FR 2955157A1 FR 1002834 A FR1002834 A FR 1002834A FR 1002834 A FR1002834 A FR 1002834A FR 2955157 A1 FR2955157 A1 FR 2955157A1
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- waves
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- wave
- helicoidal
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Classifications
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- 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
- F03B13/1805—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 is hinged to the rem
- F03B13/1825—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 is hinged to the rem for 360° rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/20—Geometry three-dimensional
- F05B2250/25—Geometry three-dimensional helical
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- 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
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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
Dispositif simple de conversion de l'énergie de la houle sous forme d'énergie électrique comportant deux rotors composés par des volumes en forme d'hélice de longueur et diamètre similaires mais de pas d'hélice de sens opposés (1) et (2) dont les axes de rotation sont maintenus sensiblement parallèles entre eux par l'intermédiaire d'une structure ou stator (3). Sous certaines conditions liant la longueur du pas des hélices à la longueur d'onde des vagues et le rayon des hélices au creux des vagues, quand le stator (3) est rendu globalement immobile à l'aide d'un ancrage (4), alors les volumes hélicoïdaux (1) et (2) sont soumis à un couple tendant à les faire tourner autour de leur axe avec le défilement des vagues. Cette caractéristique permet de transformer le mouvement alternatif des vagues en mouvement de rotation unidirectionnel exploitable directement par un générateur électrique tournant conventionnel. Un câble (14) conduit le courant électrique produit vers le réseau utilisateur. Un dispositif de ballastage (5) et un dispositif de stabilisation (6) permettent au stator (3) de maintenir les volumes hélicoïdaux (1) et (2) partiellement immergés à la surface de la mer avec le défilement des vagues. Par ailleurs, le dispositif de ballastage (5) permet également d'ajuster le niveau d'immersion du dispositif, le rendant ainsi submersible et permettant de l'immerger intégralement et temporairement afin de le soustraire aux effets de surface des tempêtes. Les applications industrielles concernent des installations temporaires ou durables assurant la production d'électricité pour des besoins notamment insulaires et côtiers.Simple device for converting wave energy as electrical energy comprising two rotors composed of helical volumes of similar length and diameter but of opposite helix pitch (1) and (2) whose axes of rotation are kept substantially parallel to each other by means of a structure or stator (3). Under certain conditions linking the length of the pitch of the helices to the wavelength of the waves and the radius of the helices in the hollow of the waves, when the stator (3) is rendered globally immobile by means of an anchorage (4), then the helicoidal volumes (1) and (2) are subjected to a torque tending to rotate around their axis with the scrolling waves. This characteristic makes it possible to transform the reciprocating movement of the waves into unidirectional rotational movement that can be operated directly by a conventional rotating electric generator. A cable (14) conducts the generated electric current to the user network. A ballasting device (5) and a stabilizing device (6) allow the stator (3) to maintain the helical volumes (1) and (2) partially immersed at the sea surface with the scrolling waves. In addition, the ballast device (5) also makes it possible to adjust the level of immersion of the device, thus making it submersible and allowing it to be fully and temporarily immersed in order to remove it from the surface effects of storms. Industrial applications concern temporary or sustainable installations for the production of electricity for particular island and coastal needs.
Description
Page 1 DISPOSITIF SIMPLE DE CONVERSION DE L'ENERGIE DE LA HOULE EN ENERGIE ELECTRIQUE La présente invention concerne les dispositifs du type "houlomotrices" permettant de convertir l'énergie de la houle sous forme d'énergie électrique. Les dispositifs flottants connus utilisent le mouvement va-et-vient vertical de la houle pour entraîner un flotteur articulé ou faire osciller une colonne d'eau dans un cylindre. The present invention relates to wave-type devices for converting wave energy in the form of electrical energy. Known floating devices use the vertical back and forth motion of the swell to drive an articulated float or to oscillate a column of water in a cylinder.
Dans ces dispositifs connus, l'énergie potentielle et cinétique alternative contenue dans la houle est captée par l'intermédiaire de structures flottantes articulées conçues pour résister dans des conditions de mer extrêmes. De plus, ces dispositifs doivent pouvoir capter les vagues les plus énergétiques et présentent donc une bande passante adaptée à la capture des vagues de grandes longueurs d'onde entraînant des dimensions de plus de cent mètres. Tous ces dispositifs nécessitent des moyens d'ancrage surdimensionnés tandis que l'énergie mécanique récupérée dans ces systèmes sous forme alternative nécessite l'usage de mécanismes de conversion d'une efficience relative et parfois peu adaptés à un séjour prolongé en milieu marin. Enfin, ces structures mécaniques de grandes tailles articulées, doivent durer dans des conditions d'environnement particulièrement agressives. A ce jour, celles qui ont survécu ont pu bénéficier d'importants coefficients de sécurité pour leur dimensionnement. Ces raisons conduisent encore aujourd'hui à des projets de structures expérimentales dont la durée de vie reste incertaine et le coût difficilement rentabilisable. Le dispositif suivant l'invention permet d'éviter ces inconvénients. Le dispositif suivant l'invention, selon une première caractéristique, permet de convertir simplement l'énergie des vagues en électricité caractérisé par le fait qu'il comporte deux rotors composés chacun d'un volume globalement indéformable en forme d'hélice de longueur et de diamètre similaires mais de pas d'hélice de sens opposés (1) et (2) dont les axes de rotation sont maintenus sensiblement parallèles entre eux par l'intermédiaire d'une structure ou stator (3). Sous certaines conditions liant la longueur du pas des hélices à la longueur d'onde des vagues et le rayon des hélices au creux des vagues, quand le stator (3) est rendu globalement immobile à l'aide d'un ancrage (4), alors les volumes hélicoïdaux (1) et (2) sont soumis à un couple tendant à les faire tourner autour de leur axe avec le défilement des vagues. Cette caractéristique permet de transformer le mouvement alternatif des vagues en mouvement de rotation unidirectionnel exploitable directement par un générateur électrique tournant conventionnel. La combinaison des deux volumes hélicoïdaux de pas d'hélice contraires permet d'apporter la stabilité de la paire qu'ils constituent par l'intermédiaire du stator (3) au sein du dispositif. Selon une seconde caractéristique, les axes parallèles des volumes hélicoïdaux (1) et (2) sont maintenus dans le plan moyen de la surface de la mer grâce à un dispositif de ballastage (5) sur la longueur du stator (3), permettant ainsi de maintenir les volumes hélicoïdaux (1) et (2) partiellement immergés à la surface de la mer avec le défilement des vagues. Ce dispositif de ballastage (5) permet également d'ajuster le niveau d'immersion du dispositif, le rendant ainsi submersible. Cette caractéristique permet d'immerger intégralement et temporairement le dispositif afin de le soustraire aux effets des tempêtes qui affectent principalement la surface libre de la mer. Selon une troisième caractéristique, le stator (3) est muni d'un dispositif de stabilisation (6) composé d'ailerons orientables autour d'un axe globalement horizontal et perpendiculaire à la direction de propagation des vagues qui sont disposés à l'avant du dispositif et de façon à être immergés autant que possible. Cette caractéristique empêche le dispositif de s'effacer au passage de la vague et lui permet de disposer de l'appui nécessaire pour faire travailler les efforts exercés par la vague sur la partie immergée des volumes (1) et (2). In these known devices, the alternative potential kinetic energy contained in the swell is captured via articulated floating structures designed to withstand extreme sea conditions. In addition, these devices must be able to capture the most energetic waves and therefore have a bandwidth suitable for capturing waves of long wavelengths resulting in dimensions of more than one hundred meters. All these devices require oversized anchoring means while the mechanical energy recovered in these systems in alternative form requires the use of conversion mechanisms of relative efficiency and sometimes poorly adapted to an extended stay in the marine environment. Finally, these mechanical structures of large articulated sizes, must last in particularly aggressive environmental conditions. To date, those who have survived have benefited from important safety factors for their design. These reasons still lead today to projects of experimental structures whose life expectancy remains uncertain and the cost hardly profitable. The device according to the invention makes it possible to avoid these disadvantages. The device according to the invention, according to a first characteristic, makes it possible to simply convert the wave energy into electricity, characterized in that it comprises two rotors each composed of a generally indeformable volume in the form of a helix of length and width. similar diameter but propeller pitch opposite directions (1) and (2) whose axes of rotation are maintained substantially parallel to each other through a structure or stator (3). Under certain conditions linking the length of the pitch of the helices to the wavelength of the waves and the radius of the helices in the hollow of the waves, when the stator (3) is rendered globally immobile by means of an anchorage (4), then the helicoidal volumes (1) and (2) are subjected to a torque tending to rotate around their axis with the scrolling waves. This characteristic makes it possible to transform the reciprocating movement of the waves into unidirectional rotational movement that can be operated directly by a conventional rotating electric generator. The combination of the two helical volumes of opposite helical pitch makes it possible to bring the stability of the pair which they constitute by means of the stator (3) within the device. According to a second characteristic, the parallel axes of the helicoidal volumes (1) and (2) are maintained in the mean plane of the sea surface by means of a ballast device (5) along the length of the stator (3), thus allowing to maintain the helicoidal volumes (1) and (2) partially immersed on the surface of the sea with the scrolling waves. This ballasting device (5) also makes it possible to adjust the level of immersion of the device, thus making it submersible. This characteristic makes it possible to fully and temporarily immerse the device in order to avoid the effects of storms that mainly affect the free surface of the sea. According to a third characteristic, the stator (3) is provided with a stabilization device (6) composed of fins orientable around a generally horizontal axis and perpendicular to the wave propagation direction which are arranged at the front of the device and so as to be immersed as much as possible. This feature prevents the device from fading at the passage of the wave and allows it to have the support necessary to make work the efforts exerted by the wave on the immersed part of volumes (1) and (2).
Page 2 Selon une quatrième caractéristique, les volumes hélicoïdaux (1) et (2) entraînent chacun un générateur électrique (11) et (12), positionnés à l'avant, dans une cabine adaptée, solidaire du stator (3). Les masses des générateurs entraînés par les volumes (1) et (2) contribuent à assurer l'horizontalité des axes des volumes hélicoïdaux (1) et (2) grâce à un effet de masse pendulaire avec le défilement des vagues. Selon une cinquième caractéristique, le dispositif est maintenu en position sur un champ de vagues par l'intermédiaire d'un dispositif d'ancrage (4) destiné à résister aux composantes horizontale, longitudinale et transversale des efforts induits par les vagues sur le dispositif. Cette caractéristique permet de maintenir la position géographique du dispositif sur le champ de vagues so auquel il est adapté tout en lui laissant l'aptitude de s'orienter naturellement à mesure que la direction des vagues change. Selon une sixième caractéristique, le dispositif d'ancrage (4) est relié par un câble (10) au stator (3). Le ou les points d'accroche de ce câble (10) sur le stator (3) seront situés en aval de la cabine abritant les générateurs électriques (11) et (12) et en amont des flotteurs hélicoïdaux (1) et (2), par rapport au sens de défilement des vagues. Cette caractéristique permet de bénéficier de 15 l'effet dynamique pendulaire avant exercée par les masses des générateurs électriques (11) et (12) d'une part et les efforts dynamiques induits par le défilement des vagues sur les volumes hélicoïdaux (1) et (2) d'autre part. Selon une septième caractéristique, les axes des volumes hélicoïdaux (1) et (2) sont maintenus sensiblement parallèles à l'axe de propagation des vagues par l'intermédiaire d'un ou deux safrans L0 (13) pour notamment réduire l'effet de dérive occasionné par un vent de direction différente de l'axe de propagation des vagues. Selon une huitième caractéristique, un câble électrique (14) relie chaque dispositif au réseau local d'électricité. Selon un premier mode de réalisation de l'invention, destiné à la production d'énergie électrique 25 de masse à partir d'un parc de machines implantées dans un champ de vagues orientées à proximité des côtes, les volumes hélicoïdaux (1) et (2) de grande longueur de chaque machine sont composés par l'association de plusieurs modules identiques de forme principalement tubulaire (7) disposés solidairement en faisceau le long de l'arbre (8) pour que l'ensemble forme les volumes hélicoïdaux (1) et (2) suivant le sens du faisceau. La structure et l'architecture du stator (3) 30 apportent une rigidité axiale pour la liaison avec les volumes hélicoïdaux (1) et (2), notamment par l'ajout d'entretoises (9), solidaires du stator (3), régulièrement disposées le long des axes des volumes hélicoïdaux (1) et (2) et munies d'une liaison pivot à chaque extrémité permettant de réduire les contraintes induites dans les arbres (8) avec le défilement des vagues. Le dispositif de ballastage (5) peut notamment ici prendre la forme de compartiments ballastables intégrés dans 35 la structure axiale immergée du stator (3). Selon un autre mode de réalisation plus léger de l'invention, destiné à la production locale ponctuelle d'énergie électrique, les volumes hélicoïdaux (1) et (2) sont réalisés grâce à des poutres tridimensionnelles tétraèdrées (20) dont le choix particulier des caractéristiques permet de former un maillage volumique de forme globalement hélicoïdale sur un axe continu. Ces poutres 40 tétraèdrées (20), réalisées à partir de poutrelles (21) standardisées, dont les longueurs sont choisies de manière à ce qu'une des arêtes soit toujours sur l'axe du volume hélicoïdal ; tandis que deux autres arêtes définissent la continuité de la forme hélicoïdale. Des flotteurs identiques (27) de forme grossièrement sphérique, pouvant être gonflables, sont intégrés de façon régulière à l'intérieur de la structure en prenant appui sur les 6 poutrelles (21) constituant chaque tétraèdre 45 élémentaire de base. Grâce à cette structure tétraédrée rigide sur sa longueur, le stator (3) ne nécessite pas de liaison pivot intermédiaire. Le dispositif de ballastage (5) se résume à 2 volumes (51) et (52) respectivement placés à l'avant et à l'arrière du dispositif. According to a fourth characteristic, the helicoidal volumes (1) and (2) each lead an electric generator (11) and (12), positioned at the front, in a suitable cabin, integral with the stator (3). The masses of the generators driven by the volumes (1) and (2) contribute to ensure the horizontality of the axes of the helical volumes (1) and (2) through a pendulum mass effect with the scrolling waves. According to a fifth characteristic, the device is held in position on a wave field by means of an anchoring device (4) intended to withstand the horizontal, longitudinal and transverse components of the forces induced by the waves on the device. This feature makes it possible to maintain the geographical position of the device on the wave field so that it is adapted while leaving the ability to orient itself naturally as the direction of the waves changes. According to a sixth characteristic, the anchoring device (4) is connected by a cable (10) to the stator (3). The point or points of attachment of this cable (10) on the stator (3) will be located downstream of the cabin housing the electric generators (11) and (12) and upstream of the helical floats (1) and (2) , compared to the direction of scrolling waves. This characteristic makes it possible to benefit from the forward pendulum dynamic effect exerted by the masses of the electric generators (11) and (12) on the one hand and the dynamic forces induced by the scrolling of the waves on the helicoidal volumes (1) and ( 2) secondly. According to a seventh characteristic, the axes of the helicoidal volumes (1) and (2) are kept substantially parallel to the axis of propagation of the waves by means of one or two rudders L0 (13) in particular to reduce the effect of drift caused by a wind direction different from the wave propagation axis. According to an eighth characteristic, an electric cable (14) connects each device to the local electricity network. According to a first embodiment of the invention, intended for the production of mass electrical energy from a fleet of machines located in a wave field oriented near the coasts, the helicoidal volumes (1) and ( 2) of great length of each machine are composed by the combination of several identical modules of predominantly tubular shape (7) arranged in a beam-like manner along the shaft (8) so that the assembly forms the helicoidal volumes (1) and (2) according to the direction of the beam. The structure and the architecture of the stator (3) provide an axial rigidity for the connection with the helicoidal volumes (1) and (2), in particular by the addition of spacers (9) integral with the stator (3), regularly arranged along the axes of the helicoidal volumes (1) and (2) and provided with a pivot connection at each end to reduce the stresses induced in the trees (8) with the scrolling waves. The ballast device (5) can in particular here take the form of ballastable compartments integrated in the submerged axial structure of the stator (3). According to another lighter embodiment of the invention, intended for the local local production of electrical energy, the helicoidal volumes (1) and (2) are produced by means of three-dimensional tetrahedral beams (20) whose particular choice of characteristics makes it possible to form a volume mesh of generally helical shape on a continuous axis. These tetrahedron beams (20), made from standardized beams (21), whose lengths are chosen so that one of the edges is always on the axis of the helical volume; while two other edges define the continuity of the helical shape. Identical floats (27) of roughly spherical shape, which can be inflatable, are incorporated in a regular manner inside the structure by resting on the 6 beams (21) constituting each basic elementary tetrahedron 45. Due to this rigid tetrahedron structure along its length, the stator (3) does not require an intermediate pivot connection. The ballasting device (5) is limited to 2 volumes (51) and (52) respectively placed at the front and rear of the device.
Page 3 Applications industrielles : le rassemblement de plusieurs dispositifs selon l'invention de taille conséquente à la surface d'un champ de houle à proximité des côtes constitue un véritable parc de production d'électricité. L'installation d'une ou plusieurs machines de dimensions réduites permet de produire 5 ponctuellement de l'électricité en appoint ou en secours sur des sites côtiers notamment isolés. La transformation de l'énergie de la houle en énergie électrique permet accessoirement d'atténuer la violence de cette houle en aval du dispositif. II est ainsi permis d'envisager des applications intéressant la protection des ouvrages en mer, des côtes contre l'agression de la houle, ou encore des activités humaines d'aquaculture. Le rassemblement de plusieurs dispositifs so dans une même zone permet de constituer un barrage flottant atténuateur de houle en aval duquel les activités humaines, animales ou végétales pourront d'autant plus facilement s'exercer qu'elles disposeront d'une source d'énergie locale. Industrial applications: the gathering of several devices according to the invention of substantial size on the surface of a wave field near the coast is a real power generation park. The installation of one or more machines of reduced size makes it possible to produce punctual electricity for backup or relief on isolated coastal sites. The transformation of the wave energy into electrical energy incidentally makes it possible to attenuate the violence of this swell downstream of the device. It is thus possible to consider applications that concern the protection of structures at sea, coasts against wave aggression, or even human activities in aquaculture. The gathering of several devices so in the same area makes it possible to constitute a floating wave attenuator dam downstream from which human, animal or plant activities will be all the easier as they will have a local energy source. .
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1002834A FR2955157B1 (en) | 2010-01-14 | 2010-07-06 | SIMPLE DEVICE FOR CONVERTING THE ENERGY OF THE HEAT IN ELECTRICAL ENERGY |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1000133A FR2955156A1 (en) | 2010-01-14 | 2010-01-14 | Device for converting energy of waves at surface of sea into electric energy, has volume formed in shape of propeller, where axis of volume is maintained parallel with direction of propagation of waves at average level of surface of sea |
| FR1002834A FR2955157B1 (en) | 2010-01-14 | 2010-07-06 | SIMPLE DEVICE FOR CONVERTING THE ENERGY OF THE HEAT IN ELECTRICAL ENERGY |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2955157A1 true FR2955157A1 (en) | 2011-07-15 |
| FR2955157B1 FR2955157B1 (en) | 2013-05-17 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1000133A Pending FR2955156A1 (en) | 2010-01-14 | 2010-01-14 | Device for converting energy of waves at surface of sea into electric energy, has volume formed in shape of propeller, where axis of volume is maintained parallel with direction of propagation of waves at average level of surface of sea |
| FR1002834A Expired - Fee Related FR2955157B1 (en) | 2010-01-14 | 2010-07-06 | SIMPLE DEVICE FOR CONVERTING THE ENERGY OF THE HEAT IN ELECTRICAL ENERGY |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1000133A Pending FR2955156A1 (en) | 2010-01-14 | 2010-01-14 | Device for converting energy of waves at surface of sea into electric energy, has volume formed in shape of propeller, where axis of volume is maintained parallel with direction of propagation of waves at average level of surface of sea |
Country Status (1)
| Country | Link |
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| FR (2) | FR2955156A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818703A (en) * | 1971-06-01 | 1974-06-25 | Laitram Corp | Wave energy converter array |
| FR2457989A1 (en) * | 1979-05-28 | 1980-12-26 | Grugeaud Charles | Floating screw to recover wave or water current energy - uses helical screw supported in anchored keel to generate electricity |
| FR2505937A1 (en) * | 1981-05-15 | 1982-11-19 | Hydronautics | DEVICE FOR CONVERTING WAVE ENERGY INTO A MORE USEFUL ENERGY FORM |
| EP0222352A2 (en) * | 1985-11-07 | 1987-05-20 | Johann Dauenhauer | Electric current generating hydraulic device |
| FR2805864A1 (en) * | 2000-01-25 | 2001-09-07 | Francois Christian Paul Crolet | Device, for the conversion of wave energy, consist of series of float arms, mounted to form helix on main shaft, which is maintained in partially immersed condition by anchor and stability devices |
| WO2004065785A1 (en) * | 2003-01-20 | 2004-08-05 | Torben Veset Mogensen | Sea wave energy converter |
| WO2009093909A1 (en) * | 2008-01-24 | 2009-07-30 | Flucon As | Turbine arrangement |
-
2010
- 2010-01-14 FR FR1000133A patent/FR2955156A1/en active Pending
- 2010-07-06 FR FR1002834A patent/FR2955157B1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818703A (en) * | 1971-06-01 | 1974-06-25 | Laitram Corp | Wave energy converter array |
| FR2457989A1 (en) * | 1979-05-28 | 1980-12-26 | Grugeaud Charles | Floating screw to recover wave or water current energy - uses helical screw supported in anchored keel to generate electricity |
| FR2505937A1 (en) * | 1981-05-15 | 1982-11-19 | Hydronautics | DEVICE FOR CONVERTING WAVE ENERGY INTO A MORE USEFUL ENERGY FORM |
| EP0222352A2 (en) * | 1985-11-07 | 1987-05-20 | Johann Dauenhauer | Electric current generating hydraulic device |
| FR2805864A1 (en) * | 2000-01-25 | 2001-09-07 | Francois Christian Paul Crolet | Device, for the conversion of wave energy, consist of series of float arms, mounted to form helix on main shaft, which is maintained in partially immersed condition by anchor and stability devices |
| WO2004065785A1 (en) * | 2003-01-20 | 2004-08-05 | Torben Veset Mogensen | Sea wave energy converter |
| WO2009093909A1 (en) * | 2008-01-24 | 2009-07-30 | Flucon As | Turbine arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2955156A1 (en) | 2011-07-15 |
| FR2955157B1 (en) | 2013-05-17 |
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