IT202000024895A1 - OFFSHORE WAVE ENERGY CONVERTER CONSISTING OF A SWINGING BUOY HINGED TO A TENSIONED FLOATING PLATFORM ANCHORED TO THE SEABED AND BY A UNIDIRECTIONAL ELECTRIC GENERATOR - Google Patents

OFFSHORE WAVE ENERGY CONVERTER CONSISTING OF A SWINGING BUOY HINGED TO A TENSIONED FLOATING PLATFORM ANCHORED TO THE SEABED AND BY A UNIDIRECTIONAL ELECTRIC GENERATOR

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Publication number
IT202000024895A1
IT202000024895A1 IT102020000024895A IT202000024895A IT202000024895A1 IT 202000024895 A1 IT202000024895 A1 IT 202000024895A1 IT 102020000024895 A IT102020000024895 A IT 102020000024895A IT 202000024895 A IT202000024895 A IT 202000024895A IT 202000024895 A1 IT202000024895 A1 IT 202000024895A1
Authority
IT
Italy
Prior art keywords
wheels
buoy
motion
platform
output shaft
Prior art date
Application number
IT102020000024895A
Other languages
Italian (it)
Inventor
Domenico Coiro
Giancarlo Troise
Nadia Bizzarrini
Guido Lazzerini
Original Assignee
Eolpower Invest S R L
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 Eolpower Invest S R L filed Critical Eolpower Invest S R L
Priority to IT102020000024895A priority Critical patent/IT202000024895A1/en
Publication of IT202000024895A1 publication Critical patent/IT202000024895A1/en

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
    • F03B13/16—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
    • F03B13/181—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 limited rotation
    • 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
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/08—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and oscillating motion
    • 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
    • F16H—GEARING
    • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
    • F16H31/001—Mechanisms with freewheeling members
    • 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
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40312—Ratchet wheels
    • 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
    • F05B2260/503—Kinematic linkage, i.e. transmission of position using gears
    • 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

Landscapes

  • 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)

Description

La Figura riporta una vista schema ctoincfaig duerlalzaione del sistema di trasmissione unidirezionale costituito da due coppie di ruote dentate e due ruote libere. La Figura riporta ????? ?}? ?]? ?]?}?v???? del generatore e del possibile ] The figure shows a schematic view of the unidirectional transmission system consisting of two pairs of toothed wheels and two freewheels. The Figure shows ????? ?}? ?]? ?]?}?v???? of the generator and of the possible ]

Claims (8)

RIVENDICAZIONI 1. Sistema per la conversione della energia delle onde comprendente un corpo galleggiante primario, di seguito indicato come boa (1), che incontra per primo l?onda incidente e oscilla in moto relativo rispetto a un corpo galleggiante secondario, di seguito indicato come piattaforma (2), di caratteristiche geometriche e inerziali diverse dalla boa (1) e vincolato al fondale tramite un sistema di ormeggio (24), due bracci di collegamento (3) che connettono la boa (1) alla piattaforma (2), che oscillano in maniera solidale alla boa (1) intorno ad una cerniera (4) posta sulla piattaforma (2) e trasmettono il moto relativo della boa (1) ad un generatore elettrico (6), contenuto all?interno della piattaforma (2), attraverso un sistema di trasmissione del moto (5), anche esso contenuto nella piattaforma (2),1. Wave energy conversion system comprising a primary floating body, hereinafter referred to as buoy (1), which first encounters the incident wave and swings in relative motion with respect to a secondary floating body, hereinafter referred to as platform (2), with different geometric and inertial characteristics from the buoy (1) and tied to the seabed through a mooring system (24), two connecting arms (3) which connect the buoy (1) to the platform (2), which oscillate integrally with the buoy (1) around a hinge (4) placed on the platform (2) and transmit the relative motion of the buoy (1) to an electric generator (6), contained inside the platform (2), through a motion transmission system (5), also contained in the platform (2), caratterizzato dal fatto che detti bracci di collegamento (3) sono inclinati rispetto alla superficie del mare con un angolo variabile tra 0 e 45 gradi per sfruttare sia le azioni orizzontali che verticali dell?onda, detto sistema di trasmissione del moto (5) ? costituito da un albero in ingresso (7) connesso ai bracci di collegamento (3), da un albero in uscita (13) connesso al generatore elettrico (6) e da due coppie di ruote dentate (9,12) e (10,11) che trasferiscono il moto dall?albero in ingresso (7) all?albero in uscita (13) con lo stesso senso di rotazione nelle due fasi dell?oscillazione e aumentano la velocit? di rotazione, una delle due ruote ingrananti (9,10) di ciascuna di dette coppie di ruote dentate (9,12) e (10,11) ? montata rigidamente sull?albero in ingresso (7) mentre le altre ruote (11,12) di ciascuna di dette coppie di ruote sono montate mediante due ruote libere (14,15) sull?albero in uscita (13), le ruote libere (14,15) sono montate con orientazioni opposte in modo da trasmettere alternativamente il moto nella fase ascendente e discendente della oscillazione, una delle due coppie di ruote dentate comprende un ingranaggio con dentatura interna (9) mentre l?altra coppia ? costituita da due ruote a dentatura esterna (10,11), in modo da trasferire il moto all?albero in uscita (13) con lo stesso senso di rotazione nelle due fasi dell?oscillazione, un volano (16) ? montato sull?albero in uscita (13) allo scopo di ridurre le fluttuazioni della velocit? di rotazione.characterized by the fact that said connecting arms (3) are inclined with respect to the sea surface with a variable angle between 0 and 45 degrees to exploit both the horizontal and vertical actions of the wave, said motion transmission system (5) ? consisting of an input shaft (7) connected to the connecting arms (3), an output shaft (13) connected to the electric generator (6) and two pairs of gear wheels (9,12) and (10,11 ) which transfer the motion from the input shaft (7) to the output shaft (13) with the same direction of rotation in the two phases of the oscillation and increase the speed? of rotation, one of the two meshing wheels (9,10) of each of said pairs of gear wheels (9,12) and (10,11) ? rigidly mounted on the input shaft (7) while the other wheels (11,12) of each of said pairs of wheels are mounted by means of two free wheels (14,15) on the output shaft (13), the free wheels ( 14,15) are mounted with opposite orientations so as to alternately transmit the motion in the ascending and descending phase of the oscillation, one of the two pairs of toothed wheels includes a gear with internal toothing (9) while the other pair ? made up of two wheels with external toothing (10,11), so as to transfer the motion to the output shaft (13) with the same direction of rotation in the two phases of the oscillation, a flywheel (16) ? mounted on the output shaft (13) in order to reduce the speed fluctuations? of rotation. 2. Sistema secondo la rivendicazione 1, in cui le coppie di ruote dentate (9,12) e (10,11) sono posizionate in alloggiamenti carenati (27) contenenti liquido lubrificante.The system according to claim 1, wherein the pairs of gear wheels (9,12) and (10,11) are positioned in enclosed housings (27) containing lubricating liquid. 3. Sistema secondo la rivendicazione 1, in cui il detto sistema di trasmissione del moto (5) ? costituito da un primo albero in ingresso alla trasmissione (7) connesso ai bracci di collegamento (3) della boa (1) alla piattaforma (2), un sistema di ruote dentate (17) che trasferisce il moto, aumentando la velocit? di rotazione, dal primo albero in ingresso (7) ad un secondo albero in ingresso (18) connesso ad un albero in uscita (19) attraverso una coppia di ruote dentate (20) e una trasmissione a catena (21), in cui le ruote di detta coppia (20) e di detta trasmissione a catena (21) montate sull?albero in ingresso (18) sono connesse a detto albero (18) mediante ruote libere (22,23) con versi di trasmissione opposta, in modo da trasmettere alternativamente il moto nella fase ascendente e discendente della oscillazione e da trasferire con un unico senso di rotazione il moto all?albero in uscita (19) e, quindi, al generatore (6), e in cui un volano (16) ? montato sull?albero di trasmissione in uscita (19) allo scopo di ridurre le fluttuazioni della velocit? di rotazione.3. System according to claim 1, wherein said motion transmission system (5) is consists of a first input shaft to the transmission (7) connected to the connecting arms (3) of the buoy (1) to the platform (2), a system of gear wheels (17) which transfers the motion, increasing the speed? of rotation, from the first input shaft (7) to a second input shaft (18) connected to an output shaft (19) through a pair of sprockets (20) and a chain transmission (21), in which the wheels of said pair (20) and of said chain transmission (21) mounted on the input shaft (18) are connected to said shaft (18) by means of freewheels (22,23) with opposite transmission directions, so as to alternately transmit the motion in the ascending and descending phase of the oscillation and to transfer the motion to the output shaft (19) and, therefore, to the generator (6) with a single direction of rotation, and in which a flywheel (16) ? mounted on the output drive shaft (19) in order to reduce speed fluctuations? of rotation. 4. Sistema secondo la rivendicazione 1 oppure 2, in cui sull?albero in uscita (13) sono montate due o pi? ruote dentate (32) atte a trasferire la potenza al generatore elettrico (6) e ad una o pi? macchine utilizzatrici (30).4. System according to claim 1 or 2, wherein on the output shaft (13) two or more? gear wheels (32) suitable for transferring power to the electric generator (6) and to one or more? user machines (30). 5. Sistema secondo la rivendicazione 3, in cui sull?albero in uscita (19) sono montate due o pi? ruote dentate (32) atte a trasferire la potenza al generatore elettrico (6) e ad una o pi? macchine utilizzatrici.5. System according to claim 3, wherein on the output shaft (19) are mounted two or more? gear wheels (32) suitable for transferring power to the electric generator (6) and to one or more? user machines. 6. Sistema secondo la rivendicazione 4 oppure 5, in cui dette macchine utilizzatrici comprendono un sistema di dissalazione (30) e una pompa (31) atta ad aumentare la pressione dell?acqua marina in ingresso ad uno smorzatore (33) delle oscillazioni della pressione dell?acqua che deve attraversare le membrane del dissalatore (30).6. System according to claim 4 or 5, wherein said user machines comprise a desalination system (30) and a pump (31) able to increase the pressure of the sea water entering a damper (33) of the pressure oscillations of the water that has to pass through the membranes of the watermaker (30). 7. Sistema secondo una delle rivendicazioni precedenti, in cui le posizioni relative della boa (1) e della piattaforma (2) rispetto alle onde incidenti sono invertite.7. System according to one of the preceding claims, wherein the relative positions of the buoy (1) and of the platform (2) with respect to the incident waves are reversed. 8. Sistema secondo una delle rivendicazioni precedenti, in cui la piattaforma (2) ? parzialmente o completamente sommersa ed ? connessa ad elementi galleggianti sommersi (25,26) di forma cilindrica o prismatica, che forniscono galleggiamento aggiuntivo e spazio per il posizionamento di zavorra per il centraggio del sistema. 8. System according to one of the preceding claims, wherein the platform (2) is partially or completely submerged and ? connected to submerged floating elements (25,26) of cylindrical or prismatic shape, which provide additional buoyancy and space for the placement of ballast for centering the system.
IT102020000024895A 2020-10-21 2020-10-21 OFFSHORE WAVE ENERGY CONVERTER CONSISTING OF A SWINGING BUOY HINGED TO A TENSIONED FLOATING PLATFORM ANCHORED TO THE SEABED AND BY A UNIDIRECTIONAL ELECTRIC GENERATOR IT202000024895A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911287A (en) * 1974-03-13 1975-10-07 Robert Lee Neville Wave driven power generators
US20100045044A1 (en) * 2008-08-20 2010-02-25 Patterson Morris D Vertical motion wave power generator
US20130283778A1 (en) * 2010-11-19 2013-10-31 C.N.A. Meccanica S.R.L. Device for Converting the Power of Sea Wave Motion
WO2016204554A1 (en) * 2015-06-18 2016-12-22 주식회사 서준 Wave power generator using pendulum movement and sea marker buoy using same
US20190032626A1 (en) * 2017-07-28 2019-01-31 Fan Liu Wave Power Generator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911287A (en) * 1974-03-13 1975-10-07 Robert Lee Neville Wave driven power generators
US20100045044A1 (en) * 2008-08-20 2010-02-25 Patterson Morris D Vertical motion wave power generator
US20130283778A1 (en) * 2010-11-19 2013-10-31 C.N.A. Meccanica S.R.L. Device for Converting the Power of Sea Wave Motion
WO2016204554A1 (en) * 2015-06-18 2016-12-22 주식회사 서준 Wave power generator using pendulum movement and sea marker buoy using same
US20190032626A1 (en) * 2017-07-28 2019-01-31 Fan Liu Wave Power Generator

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