WO2019245530A1 - Extraction d'énergie houlomotrice de l'océan - Google Patents

Extraction d'énergie houlomotrice de l'océan Download PDF

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Publication number
WO2019245530A1
WO2019245530A1 PCT/US2018/038223 US2018038223W WO2019245530A1 WO 2019245530 A1 WO2019245530 A1 WO 2019245530A1 US 2018038223 W US2018038223 W US 2018038223W WO 2019245530 A1 WO2019245530 A1 WO 2019245530A1
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WO
WIPO (PCT)
Prior art keywords
energy
drive shaft
extraction
shuttle
set forth
Prior art date
Application number
PCT/US2018/038223
Other languages
English (en)
Inventor
Francis W. Layher
Original Assignee
Layher Francis W
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 Layher Francis W filed Critical Layher Francis W
Priority to PCT/US2018/038223 priority Critical patent/WO2019245530A1/fr
Publication of WO2019245530A1 publication Critical patent/WO2019245530A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/10—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
    • 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"
    • F03B13/20—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" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B41J29/13—Cases or covers
    • 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
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • 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
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
    • 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
    • F05B2250/40—Movement of component
    • F05B2250/44—Movement of component one element moving inside another one, e.g. wave-operated member (wom) moving inside another member (rem)
    • 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
    • F05B2260/00—Function
    • F05B2260/42—Storage of energy
    • 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
    • F05B2260/00—Function
    • F05B2260/50—Kinematic linkage, i.e. transmission of position
    • F05B2260/504—Kinematic linkage, i.e. transmission of position using flat or V-belts and pulleys
    • 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

  • This disclosure relates to an apparatus for the generation of power from waves, and more particularly, to the generation and storage of electrical energy from waves, particularly in oceans.
  • the device can be adjusted to maximize the energy extracted from a given wave height.
  • the device extracts energy from wave motion in water, and particularly from ocean waves, using a weighted shuttle which is mounted for motion across a deck of a suitable platform, such as an ocean going barge.
  • the weighted shuttle is allowed to accelerate before engaging a drive shaft to drive an electrical generation apparatus.
  • the device may further include batteries for chemical storage of electrical energy. Using such storage batteries, a floating platform operating as an electrical power generation unit may temporarily store energy gathered from ocean waves, and then the platform may be towed to an electrical connection point for discharge of the stored electrical power.
  • the electrical generator may be operatively coupled with a set of electrical transmission lines, and in such cases, electrical energy may be directly transmitted from the energy generation platform to an electrical energy distribution system for connection with end users.
  • the device includes a base platform such as a barge having a frame or deck, and which is adapted for buoyant support by water, and which can be positioned in a desired location and orientation for receiving wave action and rocking in response to impinging waves.
  • a set of tracks is mounted transversely on the base, with the set of tracks having a first end and a second end.
  • a weighted shuttle is mounted for movement along the set of tracks between the first and second ends.
  • the weighted shuttle has a selected mass M, which, generally, may be advantageously provided in a material having a density of about that of concrete (i.e., about 145 to 150 pounds per cubic foot, or about 2400 kilograms per cubic meter), or higher.
  • a first drive shaft is positioned orthogonally to the set of tracks at the first end of the set of tracks, and a second drive shaft is positioned orthogonally to the set of tracks at the second end of the set of tracks.
  • a first linkage is provided between the shuttle and the first drive shaft.
  • a second linkage is provided between the shuttle and the second drive shaft.
  • a flywheel may be provided, operatively connected to the first drive shaft and to the second drive shaft.
  • An electrical generator is provided, which may be operatively coupled with the flywheel.
  • one or more storage batteries are operatively coupled with the electrical generator, and are adapted to receive electrical energy from the electrical generator, and to store electrical energy therein.
  • the shuttle is configured for accelerating movement along the set of tracks for a length l_ Ai wherein the shuttle accelerates away from the first drive shaft, without transfer of energy to the first drive shaft. Then, the shuttle is further configured for decelerating movement away from the first drive shaft along the set of tracks for a length L Pi wherein the shuttle is operatively coupled to the first drive shaft to provided energy thereto, which in turn drives an electrical generator. The shuttle is also configured for accelerating movement along the set of tracks for a length L A2 wherein the shuttle accelerates away from the second drive shaft, without transfer of energy to the second drive shaft.
  • the shuttle is configured for decelerating movement along the set of tracks away from the second drive shaft for a length L P2 wherein the shuttle is operatively coupled to the second drive shaft to provide energy thereto, which in turn drives an electrical generator.
  • the movement of the shuttle results from gravitational forces imparted on the shuttle when waves impart an elevation differential H between the first end and the second end of the set of tracks.
  • various embodiments may be provided, including the provisions of batteries on the platform for storage of electrical energy in chemical form, or an embodiment where electrical transmission lines are provided to directly supply an electrical transmission grid for sending electrical energy to end users, either in real time - i.e. as generated - or from the energy stored in batteries, at a time when the electrical energy is needed elsewhere.
  • FIG. 1 provides a schematic view of an embodiment for an ocean wave generation system, showing a base platform such as a barge having a frame or deck, and which is adapted for buoyant support by water, and which can be positioned in a desired location and orientation for receiving wave motion and rocking in response thereto, so that a weighted shuttle mounted for movement during a first acceleration cycle and a first power generation cycle on the platform, and can be operatively configured for generation of electrical energy and may be configured for the storage of the same in batteries.
  • a base platform such as a barge having a frame or deck, and which is adapted for buoyant support by water, and which can be positioned in a desired location and orientation for receiving wave motion and rocking in response thereto, so that a weighted shuttle mounted for movement during a first acceleration cycle and a first power generation cycle on the platform, and can be operatively configured for generation of electrical energy and may be configured for the storage of the same in batteries.
  • FIG. 2 provides a schematic view of an embodiment for an ocean wave generation system, showing the base platform just illustrated in FIG. 1 above, but now showing the platform receiving wave motion and rocking in response thereto in a direction different than that illustrated in FIG. 1 , so that the weighted shuttle moves during a second acceleration cycle and a second power generation cycle on the platform, and as noted above, is operatively configured for generation of electrical energy and as illustrated in this embodiment, may be configured for the storage of the electrical energy in batteries.
  • FIG. 3 is a perspective view, showing a platform such as a barge on which a plurality of wave energy generation devices such as that taught in FIGS. 1 and 2 above are provided, with each device having a weighted shuttle to drive electrical power generation equipment, and also showing the use of towers to assist in the vertical positioning of weights used to maintain tension on lines which connect the weighted shuttle to an opposing pair of horizontally mounted windlasses configured to transfer energy to a drive shaft, for driving an electrical generator.
  • a platform such as a barge on which a plurality of wave energy generation devices such as that taught in FIGS. 1 and 2 above are provided, with each device having a weighted shuttle to drive electrical power generation equipment, and also showing the use of towers to assist in the vertical positioning of weights used to maintain tension on lines which connect the weighted shuttle to an opposing pair of horizontally mounted windlasses configured to transfer energy to a drive shaft, for driving an electrical generator.
  • FIG. 3A is a perspective view, showing a platform such as a barge on which a plurality of wave energy generation devices such as that just described in FIG. 3 above, now additionally illustrating the use of an environmental enclosure on the platform, for protection of the power generation devices from the elements, including salt air, sea water, and rain.
  • FIG. 4 is a perspective view of a wave energy generation device, now utilizing a platform in the form of a frame on barrels, for individual unit deployment, where the power generation device utilizes a weighted shuttle to drive an electrical generator, with ropes connecting the weighted shuttle to an opposing pair of horizontally mounted windlasses configured to transfer energy to a drive shaft, for driving an electrical generator (not shown).
  • FIG. 5 is a side view of a wave energy generation device configured as just illustrated in FIG. 4 above, now showing the weighted shuttle near the end of the power stroke as it moves from a first end to a second end of a track (where the weighted shuttle is slowing before stopping at a bumper) where a horizontally mounted windlass on a shaft is utilized to transfer energy to a drive shaft, for driving an optional flywheel (as illustrated), for transmission of power to an electrical generator (not shown).
  • FIG. 6 is a top view of a wave energy generation device configured as just illustrated in FIG. 4 above, now showing a pair of weighted shuttles near the end of their power stroke at a first end (where the weighted shuttles are slowing before stopping at bumpers) where a horizontally mounted windlass on a shaft is utilized to transfer energy from each weighted shuttle to a drive shaft, for driving an optional flywheel (as illustrated), for transmission of power to an electrical generator (not shown).
  • FIG. 7 is a side view of a wave energy generation device configured as just illustrated in FIG. 5 above, now showing the weighted shuttle near the end of the power stroke as the weighted shuttle moves from the second end to the first end of the track on the wave energy generation device (where the weighted shuttle is slowing before stopping at a bumper) where a horizontally mounted windlass on a shaft is utilized to transfer energy to a drive shaft, for driving an optional flywheel (as illustrated), for
  • FIG. 8 is a top view of a wave energy generation device configured as just illustrated in FIG. 6 above, now showing a pair of weighted shuttles near the end of their power stroke at a second end (where the weighted shuttles are slowing before stopping at bumpers) where a horizontally mounted windlass on a shaft is utilized to transfer energy from each weighted shuttle to a drive shaft, for driving an optional flywheel (as illustrated), for transmission of power to an electrical generator (not shown).
  • FIG. 9 is a partial perspective view of a wave energy generation device, similar to that shown in FIG. 4 above, now showing further details of the power transfer apparatus for transfer of energy from the weighted shuttles to a transversely mounted drive shaft, and also illustrating the use of weights at the ends of drive ropes for maintaining tension on the same, so as to enable each horizontally mounted windlass to engage and disengage the drive shaft for driving the drive shaft in a constant direction of rotation.
  • FIG.10 is a perspective view of another embodiment for a wave energy generation device, now utilizing an overhead rail for a track from which the weighted shuttle hangs, instead of a track over which the weighted shuttle rides is in other embodiments illustrated above.
  • FIG. 1 1 is a perspective view of yet another embodiment for a wave energy generation device, wherein the use of a single flywheel and a single electrical generator is shown with a set of four weighted shuttles that develop energy via response to wave action.
  • FIG. 12 is a partial perspective view of yet another embodiment for a wave energy generation device, wherein the shuttles themselves are also batteries, and wherein the discharge of batteries via connection to an overhead terminal and to connecting electrical conductors is illustrated.
  • various other elements of an apparatus for generating electrical power from ocean waves may be utilized in order to provide a useful, adjustable, and reliable electrical generation system for generating power from ocean waves.
  • FIG. 1 of the drawing wherein a diagrammatic illustration of the nature of operation of a unique ocean wave energy generation apparatus 20 is shown mounted on a platform 22.
  • the platform 22 may be an ocean going barge.
  • the apparatus 20 is adapted for the extraction of energy from wave motion of water, and in particularly through motion in response of the platform 22 to ocean waves 24.
  • the platform 22 rocks in response thereto, resulting in a first end 26 of the apparatus 20 located lower in height than the second end 28 of the apparatus 20.
  • the second end 28 of the apparatus 20 is located lower in height than the first end 26 of the apparatus 20.
  • the platform 22 preferably includes an unstable design, so that the platform tends to rock back and forth, rather than merely remain upright.
  • barrel 36 may be offset (lower) than barrels 34 and 38, so that the apparatus 20 tends to rock toward either barrel 34 or barrel 38, in order to maximize movement of shuttles 30i and 30 2 , as further described below.
  • a weighted shuttle 30 (e.g. shuttle 30i or 30 2 , where two shuttles are utilized as shown in various drawing figures) responds to the rocking motion (and change in elevation of first end 26 and second end 28 as induced by wave 24.
  • a weighted shuttle 30 is configured for movement along a set of tracks (see tracks 52i and 52 2 in FIG. 6) in a first acceleration cycle for a length L A I in a first direction (see FIG. 8), wherein the shuttle 30 accelerates without transfer energy to a first drive shaft (see first drive shaft 60 in FIGS. 4, 6, and 8), followed by a first power generation cycle in a first direction (see FIG. 8) for a length Lpi wherein the shuttle 30 is operatively coupled to the first drive shaft for transfer of energy thereto.
  • the energy generated on platform 22 may be stored on board the platform 22 in batteries B.
  • the weighted shuttle 30 is configured for movement along a set of tracks (see tracks 52i and 52 2 in FIG. 6 below) in a second direction (see FIG. 8) for an acceleration cycle for a length l_ A 2 wherein the shuttle 30 accelerates without transfer energy to a second drive shaft (see second drive shaft 62 in FIG. 4), followed by movement in the second direction (see FIG. 8) for a second power generation cycle for a length Lp2 wherein the shuttle 30 is operatively coupled to the second drive shaft 62 for transfer of mechanical energy thereto, by utilizing the kinetic energy in the shuttle 30.
  • FIG. 4 Attention is now directed to FIG. 4, where a single apparatus 20 for extraction of energy from waves is shown.
  • Barrels 34, 36, and 38 are provided, which may be connected by stiffener 40 and fastening blocks 42 to form a base or platform 44 adapted for buoyant support by seawater.
  • a support frame 46 having transverse members 48 and orthogonal members 50 provide support for, or integrally form, sets of tracks 52 1 and 52 2 , each one of the sets of tracks 52i and 52 2 having a first end 26 and a second end 28.
  • a shuttle 30 is mounted for movement along each set of tracks 52i and 52 2 between said first end 26 and second end 28.
  • a shuttle 30 is preferably a heavy, weighted shuttle having a selected mass M.
  • a shuttle 30 may be a composition of matter having a selected density D, wherein the selected density D is selected to cost effectively maximize the mass of the shuttle 30.
  • the shuttle 30 may comprise concrete (e.g. , be primarily concrete), or may be entirely concrete.
  • the shuttle may include components that are heavier than concrete (e.g, metals such as iron, steel, or heavy metals such as lead, uranium, etc.), encased by concrete or some other binding composition. Maximization of the shuttle 30 weight is advantageous to take advantage of the kinetic energy generated by the shuttle due to wave action, by allowing the mass M to reach a selected velocity in an acceleration cycle, before beginning to harvest that kinetic energy in a power cycle.
  • the kinetic energy E K of a shuttle 30 having a mass M moving at a velocity V is equal to one half of the mass M times the velocity squared:
  • a first drive shaft 60 is located orthogonally to the sets of tracks 52i and 52 2 at or adjacent the first end 82 of the working portion of the sets of tracks 52i and 52 2 .
  • a second drive shaft 62 is located orthogonally to the sets of tracks 52i and 52 2 at or near the second end 84 of the working portion of the sets of tracks 52 -i and 52 .
  • a first linkage 64 is provided between the shuttle 30 and the first drive shaft 60.
  • the first linkage 64 may be provided as first linkage shuttle portion 64-i and a first linkage windlass portion 64 2 .
  • the first linkage shuttle portion Q4 ⁇ may be a chain.
  • the first linkage windlass portion 64 2 may be a rope.
  • the first linkage windlass portion 64 and a second linkage windlass portion 66 2 may be configured, on opposing sides of device 20, as going over and under their respective windlass, in order to turn the flywheel 70 in one direction.
  • a second linkage 66 is provided between the shuttle 30 and the second drive shaft 62.
  • the second linkage 66 may be provided as second linkage shuttle portion 66 1 and a second linkage windlass portion 66 2 .
  • the second linkage shuttle portion 66 1 may be a chain, as seen in FIG. 4.
  • the second linkage windlass portion 66 2 may be a rope, as also seen in FIG. 4.
  • a flywheel 70 may be provided, and configured to be operatively connected to the first drive shaft 60 and to the second drive shaft 62.
  • An electrical generator 72 may be provided, operatively coupled with the flywheel 70, such as via shaft 74 (shown in broken lines in FIG. 4).
  • the electrical generator 72 may be operatively connected to one or more storage batteries B via a set of electrical conductors 76.
  • the batteries B are adapted for storage of electrical energy therein.
  • switchgear 8O 1 known to those of skill in the art may be utilized to connect the batteries B to a user Ui of electrical power, with or without disconnection from electrical generator 72, as appropriate in the specific circumstances then present as known to those of skill in the art.
  • electrical power may be sent through appropriate switchgear 80 2 and thence by transmission lines 82 to another electricity user U 2 , for
  • a first shuttle 30 ! and a second shuttle 30 2 may each be configured for movement along a selected set of tracks (e.g., 52-i and 52 2 , respectively). Each set of tracks may include a pair of track elements X and Y, as seen in FIG. 6. Movement of first shuttle 30i and second shuttle 30 2 is initially provided during an acceleration cycle for a length l_ Ai 0 r LA2 respectively, where the first shuttle 30i or second shuttle 30 2 accelerates without transfer of mechanical energy to either the first drive shaft 60 or to the second drive shaft 62. After the first shuttle 30i and second shuttle 30 2 have accelerated to a selected velocity V, then a power cycle is provided for length Lpi for first shuttle 30t or L P2 for the second shuttle 30 2 .
  • the apparatus described herein enables adjustment by an operator of the length l_ Ai or l_ A2 of the acceleration cycle, and the length L P1 for the power cycle.
  • the first shuttle 30i and second shuttle 30 2 are operatively coupled to either the first drive shaft 60 or to the second drive shaft 62 to transfer mechanical energy to either the first drive shaft 60 or to the second drive shaft 62.
  • overall the back and forth movement of the first shuttle 30i and second shuttle 30 2 results from gravitational forces imparted on the first shuttle 30i and second shuttle 30 2 when ocean waves create an elevation differential H between the first end 82 and second end 84 of the working portion (i.e.
  • first end bumpers 86 or shock absorbers
  • second end bumpers 88 or shock absorbers
  • the kinetic energy developed by the first shuttle 30i and by the second shuttle 30 2 is transferred to a flywheel 70, and any residual kinetic energy not so harvested is substantially expended by collision with the bumpers 86 and 88.
  • Optimal bumper design may provide for at least some elasticity in the collision between the shuttles and the bumpers as just identified, to minimize lost work by initiating return movement by the first shuttle 30i and by the second shuttle 30 2 as applicable.
  • Optimal design of device 20 will minimize impact of shuttles against bumpers, by harvesting kinetic energy and transferring the same to an electrical power generator 72, which may involve the intermediate use of a flywheel 70.
  • the first linkage 64 may be provided as first linkage shuttle portion 6 i and a first linkage windlass portion 64 2 .
  • the first linkage shuttle portion 64i may be provided in the form of a chain, for example as illustrated in FIGS. 4,
  • first linkage windlass portion 64 2 may be provided as a strong, flexible line, rope or cord.
  • a set of first windlass 90-i and 90 2 is provided, and are mounted for driving the first drive shaft 60.
  • Each one of the set of first windlass 90i and 90 2 operates in conventional fashion, and thus includes a first one-way drive bearing (not shown), so that when a first windlass 90i or 90 2 is urged to rotary motion by a load provided from shuttle 30i or 30 2 (via first linkage windlass portion 64 2 ), then a first windlass 90i and 90 2 drives the first drive shaft 60 in a single direction.
  • the first linkage windlass portion 64 2 - noted above as a strong, flexible line, rope or cord - is arranged on a first windlass QO ⁇ and 90 2 SO that the first linkage windlass portion 64 2 winds on the first windlass 90i and 90 2 and emerges in two directions.
  • the first windlass (90i and 90 2 ) is located between a first tensioning weight 96 and a shuttle (3Ch or 30 2 ).
  • first linkage windlass portion 64 2 leads to the first linkage shuttle portion 64i, and thence toward the shuttle (30i or 30 2 ), and in the other direction, the first linkage windlass portion 64 2 extends outward to a first tension roller 98i, and thence to a first tensioning weight 96, to which it is affixed.
  • a first windlass (90i or 90 2 ) is thereby configured to clutch (engage and drive first drive shaft 60) and unclutch (disengage and allow first drive shaft 60 to freewheel) for the purpose of regulating the length of the acceleration cycle (when no power is transferred to the first drive shaft 60) and the length of the power cycle (when power is transferred to the first drive shaft 60).
  • the first tensioning weight 96 moves up and down in response to movement of the first linkage windlass portion 64 2 back and forth across the first windlass (90i or 90 2 ), but the downward movement of the first tensioning weight 96 is limited by adjustably extensible first tether lines 99i - which thus limit the length of the acceleration cycle and of the power cycle.
  • a first windlass (90i, 90 2 ) is thus configured to not engage the first drive shaft 60 while shuttles (30i, 30 2 ) move along a set of tracks (e.g , 52i and 52 2 , respectively) for a length LAI during an acceleration cycle.
  • the first windlass (90i or 90 2 ) is configured to engage the first drive shaft 60 while the shuttles (30 ⁇ 30 2 ) move along a set of tracks during a power cycle for a length L P1 to drives the first drive shaft 60, by transferring mechanical energy to the first drive shaft 60.
  • a similar configuration is utilized at the other end of the apparatus 20.
  • a second linkage windlass portion 66 2 - again a strong, flexible line, rope or cord - is arranged on a second windlass 100i and 100 2 so that the second linkage windlass portion 66 2 winds on the second windlass
  • 100 2 include a second one-way drive bearing (not shown), to enable constant directional drive of second drive shaft 62.
  • the second windlass (100i and 100 2 ) is located between a second tensioning weight 102 and a shuttle (30i or 30 2 ).
  • the second linkage windlass portion 66 2 leads to the second linkage shuttle portion 66 1 , and thence toward the shuttle (30i or 30 2 ), and in the other direction, the second linkage windlass portion 66 2 extends outward to a second tension roller 98 2 , and thence to a second tensioning weight 102, to which it is affixed.
  • a second windlass (100i and 100 2 ) is thereby configured to clutch (engage and drive second drive shaft 62) and unclutch (disengage and allow second drive shaft 62 to freewheel) for the purpose of regulating the length of the acceleration cycle (when no power is transferred to the second drive shaft 62) and the length of the power cycle (when power is transferred to the second drive shaft 62).
  • the second tensioning weight 102 moves up and down in response to movement of the second linkage windlass portion 66 2 back and forth across the second windlass (100i or 100 2 ), but the downward movement of second tensioning weight 102 is limited by adjustably extensible second tether lines 99 2 - which thus limit the length of the acceleration cycle and of the power cycle.
  • Mechanical power transfer to second drive shaft 62 is similar to that just described above with respect to first drive shaft 60.
  • a second windlass (100i , 100 2 ) is thus configured to not engage the second drive shaft 62 while shuttles (30i, 30 2 ) move along a set of tracks (e.g., 52i and 52 2 , respectively) for a length l_ A 2 during an acceleration cycle.
  • the second windlass (100i or 100 2 ) is configured to engage the second drive shaft 62 while the shuttles (30i, 30 2 ) move along a set of tracks during a power cycle for a length l_p 2 to drive the second drive shaft 62, by transferring mechanical energy to the second drive shaft 62.
  • a first tension roller 98i and a second tension roller 98 2 may be mounted at the upper reaches of a first tower 1 10i or of a second tower, 1 10 2 , respectively.
  • Such positioning of a first tension roller 98-i and of a second tension roller 98 2 may be advantageous in some situations to reduce exposure of the respective first tensioning weight 96 or second tensioning weight 102 to the elements, such as wind, rain, spray, or waves, or to minimize their contact with surrounding equipment or structures.
  • a first drive chain 120 may be provided to operatively connect the first drive shaft 60 with the flywheel 70.
  • a second drive chain 122 may be provided, to operatively connect the second drive shaft 62 with the flywheel 70.
  • a first freewheeling sprocket 124 may be provided to drive shaft 74, and thence flywheel 70, to operatively couple the first drive chain 120 with the flywheel 70. The first freewheeling sprocket 124 is adapted to turn the flywheel 70 when the first drive chain 120 urges said flywheel 70 forward in a driven rotational direction.
  • a second freewheeling sprocket 134 may be provided to drive shaft 74, and thence flywheel 70, to operatively couple the second drive chain 122 with the flywheel 70.
  • the second freewheeling sprocket 134 is adapted to turn the flywheel 70 when the second drive chain 122 urges said flywheel 70 forward in a driven rotational direction.
  • the rotary motion of shaft 74 (see FIG. 4) as maintained by flywheel 70 (or equivalent in a selected electrical generator) drives an electrical generator 72.
  • the electrical generator 72 may provide electrical energy via direct current to storage batteries B.
  • an electrical generator 72 may provide alternating current directly to a set of electrical transmission lines 82, for transmission of electrical energy directly to an end user U 2 .
  • an anchoring system including one or more anchors 140 may be provided.
  • Anchors 140 may be secured to a barge 142 by connectors 144 such as anchor chain, and to position and secure the barge 142 relative to the one or more anchors 140 along a selected wave receiving orientation, in order to maximize power output.
  • the platform on which a plurality of apparatus 20 for harvesting energy from ocean waves are mounted may be configured as a towable barge 142, as indicated in FIG. 3.
  • a towable barge 150 may include a housing 152 for protecting components of the apparatus 20 from the atmosphere and from sea water.
  • a towable barge 142 or 150 may provide a platform for mounting a plurality of apparatus 20 for extracting mechanical energy from ocean waves, as described herein.
  • Electrical generators 72 are provided operatively connected to flywheels 70, for transfer of mechanical energy in the rotary motion of the flywheels into electrical energy.
  • a plurality of batteries B may be provided, and the generated electrical energy may be stored in the batteries B.
  • the towable barge 150 may be towed to an energy transfer location, where the energy from the storage batteries B is transferred to an end user Ui.
  • the towable barge 150 may be positioned in proximity to an energy user U 2 , and a set of electrical generators may be configured for generation of alternating current electricity, which can be immediately transferred by transmission lines 82 to an end user U 2 that provides a suitable electrical load.
  • FIG. 10 a shuttle 200 is mounted for transverse movement in the manner described herein above, but now instead of riding on a track or tracks, the shuttle 200 is suspended below a rail or track 202.
  • Other components are identical or analogous to the components described above, and thus, explanation of the same need not be repeated.
  • a number of shuttles 30N may be operatively connected to a single flywheel 70, which in turn may drive a shaft 740 which powers electrical generator 72.
  • the set of shuttles (30-i, 30 2 , 30 3 , 30 N -I , 30 N ) may drive a first common drive shaft 600, and a second common drive shaft 620.
  • Each one of the shuttles in the set of shuttles (30i, 30 2 , 30 3 , 30N-I , 30N) is operatively configured to develop kinetic energy via response to wave action, for harvest in the manner already described above.
  • FIG. 12 a perspective view of yet another embodiment for a wave energy generation device 200 is shown, wherein the shuttles (300i, 300 2 ) themselves are also batteries, i.e. they are“battery/shuttles”.
  • stanchions 400 may be used with beam 402 therebetween to support electrical conductors 410.
  • Cables 404 run from positive terminals on the battery/shuttles (300i, 300 2 ) to a junction box 412. Cables 406 run from negative terminals on the
  • Cables 404 and 406 may be either permanently mounted (with slack in the length of the cables to allow for motion of battery/shuttles (300i, 300 2 ), or provided with shorter, temporary cables for use during discharge of the battery/shuttles (300i, 300 2 ), as illustrated.
  • the platform 22 may be towed to a working station at sea, and allowed to drift and wallow until batteries are sufficiently charged, or to be anchored in a wave receiving configuration, and then the platform 22 may be towed to a discharge station, where electrical energy is provided to a user or user.
  • Such a battery storage device as described herein may provide backup for other forms of power generation, such as wind or solar power generation stations.
  • an automatic adjustment controller 418 may be utilized to adjustably control the length of the extensible first tether lines 99i (not shown in FIG. 12 but seen for example in FIG. 7) and of the extensible second tether lines 99 2 .
  • the tether lines 99i and 99 2 may be raised or lowered as suitable for a given wave height being encountered at a particular time.
  • the apparatus 20 described herein is configured for generation of electrical power from ocean waves when supported on floating platform that rocks in response to passing waves.
  • the basic concepts disclosed herein are scalable, in that multiple devices may be utilized, and/or the size of individual devices may be suitably enlarged to minimize the number of components necessary overall.
  • power generated may be stored on-board, and the barge may be towed to a convenient location for supply of electrical power to an electricity user, once the batteries B are fully charged.

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

Abstract

L'invention concerne un appareil pour générer de l'énergie à partir des vagues de l'océan. Des navettes ayant un certain poids sont disposées de façon à se déplacer entre les extrémités d'une piste. Les navettes sont autorisées à accélérer dans un cycle d'accélération avant que l'énergie mécanique ne soit récoltée dans un cycle de puissance pour délivrer une puissance d'arbre pour faire tourner un générateur électrique. Dans un mode de réalisation, des treuils montés horizontalement sont mis en prise et sont désengagés vis-à-vis d'une liaison de tension avec les navettes. Quand ils sont mis en prise par l'intermédiaire d'une liaison de tension avec les navettes, une paire de treuils est utilisée pour faire tourner des premier et second arbres d'entraînement, qui sont eux-mêmes reliés de manière fonctionnelle à un arbre d'entraînement principal pour faire tourner un générateur électrique. L'énergie électrique peut être stockée dans des batteries sur une plate-forme remorquable flottante, et, quand les batteries de stockage sont pleines, la barge peut être remorquée vers un site d'utilisation d'énergie électrique.
PCT/US2018/038223 2018-06-19 2018-06-19 Extraction d'énergie houlomotrice de l'océan WO2019245530A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2018/038223 WO2019245530A1 (fr) 2018-06-19 2018-06-19 Extraction d'énergie houlomotrice de l'océan

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Application Number Priority Date Filing Date Title
PCT/US2018/038223 WO2019245530A1 (fr) 2018-06-19 2018-06-19 Extraction d'énergie houlomotrice de l'océan

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494804A (en) * 1923-08-20 1924-05-20 Rahm Emil Installation for utilizing the energy of sea waves
CN201381930Y (zh) * 2008-11-17 2010-01-13 全基烈 海浪发电装置
EP2400146A2 (fr) * 2010-06-28 2011-12-28 Novedades Tecnologicas S.L. Flotteur pour générateur pendulaire offshore
GB2484324A (en) * 2010-10-07 2012-04-11 Adnan Mansoor Power generating apparatus for a vessel, eg a ship or boat
US20150337795A1 (en) * 2013-10-04 2015-11-26 Robert Georges Skaf Apparatus for converting wave motion on a body of water into electrical power
WO2017137561A2 (fr) * 2016-02-11 2017-08-17 Smalle Technologies, S.L. Dispositif de conversion d'énergie des vagues en énergie électrique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494804A (en) * 1923-08-20 1924-05-20 Rahm Emil Installation for utilizing the energy of sea waves
CN201381930Y (zh) * 2008-11-17 2010-01-13 全基烈 海浪发电装置
EP2400146A2 (fr) * 2010-06-28 2011-12-28 Novedades Tecnologicas S.L. Flotteur pour générateur pendulaire offshore
GB2484324A (en) * 2010-10-07 2012-04-11 Adnan Mansoor Power generating apparatus for a vessel, eg a ship or boat
US20150337795A1 (en) * 2013-10-04 2015-11-26 Robert Georges Skaf Apparatus for converting wave motion on a body of water into electrical power
WO2017137561A2 (fr) * 2016-02-11 2017-08-17 Smalle Technologies, S.L. Dispositif de conversion d'énergie des vagues en énergie électrique

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