ITTN20060006A1 - VERTICAL AXIS ROTATIONAL SYSTEM AND SAIL CONCEPTION FOR WIND ENERGY PRODUCTION - Google Patents

VERTICAL AXIS ROTATIONAL SYSTEM AND SAIL CONCEPTION FOR WIND ENERGY PRODUCTION Download PDF

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Publication number
ITTN20060006A1
ITTN20060006A1 ITTN20060006A ITTN20060006A1 IT TN20060006 A1 ITTN20060006 A1 IT TN20060006A1 IT TN20060006 A ITTN20060006 A IT TN20060006A IT TN20060006 A1 ITTN20060006 A1 IT TN20060006A1
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Italy
Prior art keywords
wind
sails
sail
self
tacking
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Italian (it)
Inventor
Gianfranco Oradini
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Gianfranco Oradini
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Application filed by Gianfranco Oradini filed Critical Gianfranco Oradini
Priority to ITTN20060006 priority Critical patent/ITTN20060006A1/en
Priority to PCT/EP2007/003393 priority patent/WO2007121904A1/en
Publication of ITTN20060006A1 publication Critical patent/ITTN20060006A1/en

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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
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • 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
    • F03D—WIND MOTORS
    • F03D5/00—Other wind motors
    • F03D5/04—Other wind motors the wind-engaging parts being attached to carriages running on tracks or the like
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/311—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape flexible or elastic
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/312—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed
    • 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
    • Y02E10/70—Wind energy
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Wind Motors (AREA)
  • Toys (AREA)

Description

TITOLO: SISTEMA ROTAZIONALE AD ASSE VERTICALE A CONCEZIONE VELICA PER LA PRODUZIONE DI ENERGIA DAL VENTO" TITLE: VERTICAL AXIS ROTATIONAL SYSTEM WITH SAIL CONCEPT FOR THE PRODUCTION OF ENERGY FROM THE WIND "

DESCRIZIONE DELL’INVENZIONE PREMESSE DESCRIPTION OF THE INVENTION PREMISES

Lo stato attuale dei rotori ad asse verticale in commercio non riesce, per le superimi limitate e comunque fisse, a captare in modo adeguato l’energia del vento. La lunga esperienza del proponente nel settore velico ai massimi livelli (campione d’Europa classe “laser” 1975 e olimpionico classe “soling” Montreal 1976), dopo aver utilizzato barche di ogni classe e stazza, gli ha dato spunto all’ideazione della presente invenzione, utilizzando strutture veliche e sistemi tecnici già in uso da anni. In tal modo è possibile sfruttare l’enorme e ripetitiva forza del vento (energia rinnovabile) trasformandola in energia elettrica e meccanica. The current state of vertical axis rotors on the market is unable, due to the limited and in any case fixed superimpositions, to adequately capture the energy of the wind. The long experience of the proponent in the sailing sector at the highest levels (European champion in the "laser" class 1975 and Olympian in the "soling" class Montreal 1976), after using boats of every class and tonnage, gave him inspiration for the design of the present invention, using sail structures and technical systems already in use for years. In this way it is possible to exploit the enormous and repetitive force of the wind (renewable energy) by transforming it into electrical and mechanical energy.

Scopo fondamentale della presente invenzione è l’utilizzo di una tecnica usata su alcuni tipi di imbarcazione detta “autovirante” (vedi fig. 4). Tale sistema permette alla vela anteriore all’albero “detta fiocco” di posizionarsi automaticamente ad ogni virata senza l’ausilio di un manovratore, chiamato “prodiere”. The fundamental purpose of the present invention is the use of a technique used on some types of boats called "self-tacking" (see fig. 4). This system allows the sail in front of the mast "called jib" to position itself automatically at each turn without the aid of a maneuverer, called "bowman".

Per meglio illustrare queste e altre particolari caratteristiche del dispositivo, viene ora descritto un esempio di realizzazione secondo la presente invenzione, con riferimento ai disegni proposti che hanno scopo puramente esplicativo e non limitativo. In order to better illustrate these and other particular characteristics of the device, an example of embodiment according to the present invention is now described, with reference to the proposed drawings which have a purely explanatory and non-limiting purpose.

Il concetto base del brevetto consiste nell’applicazione su una struttura rotazionale di vele che, abbinate a sistemi “autoviranti” delle vele stesse, posizionano le superfìci in modo sempre appropriato per ogni direzione del vento. Ogni vela, nella rotazione completa di 360° del sistema, assume tutte The basic concept of the patent consists in the application on a rotational structure of sails which, combined with "self-tacking" systems of the sails themselves, always position the surfaces in an appropriate way for each wind direction. Each sail, in the complete 360 ° rotation of the system, assumes all of them

le possibili andature (vedi fig. 7), sviluppando così una rotazione con utilizzo della energia eolica ed ottenendo un elevato rendimento. the possible gaits (see fig. 7), thus developing a rotation with the use of wind energy and obtaining a high efficiency.

Si descrive a titolo di esempio un sistema base composto da quattro vele ipotizzate del tipo nautico “a fiocco” (vedi fig.5) . Le vele sono disposte alle estremità di due bracci di supporto posizionati a croce ed installate con l’asse portante della vela perpendicolare ai bracci stessi. In tal modo, indipendentemente dalla direzione di provenienza del vento che investe il sistema, in ogni istante risultano attive contemporaneamente 3 vele che, applicando al sistema forze tangenziali, lo mettono in rotazione, mentre la quarta vela viene a trovarsi temporaneamente in posizione neutra e risale il vento. By way of example, a basic system consisting of four sails hypothesized of the nautical "jib" type is described (see fig. 5). The sails are arranged at the ends of two support arms positioned crosswise and installed with the supporting axis of the sail perpendicular to the arms themselves. In this way, regardless of the direction of origin of the wind that hits the system, at any moment 3 sails are active at the same time which, by applying tangential forces to the system, set it in rotation, while the fourth sail is temporarily in a neutral position and rises again. the wind.

In figg. 1 e 2 è rappresentato in pianta e prospetto il sistema proposto. In figs. 1 and 2 the proposed system is shown in plan and elevation.

Ogni vela disposta aH’estremità della struttura rotante è costituita da un albero stabilizzato da 2 sartie laterali, uno strallo di poppa e un fiocco con sistema auto-awolgente per diminuire o aumentare la superficie velica in finizione della intensità del vento. Per ogni vela viene installato, come detto in precedenza, un sistema di regolazione autovirante (come normalmente in uso in ambiente velico), costituito da una rotaia curva con carrello, che consente l’autoregolazione della vela in base ad ogni variazione del vento. Vedi : Fig. 3: Sistema base a una vela da installare alla estremità di ogni braccio del sistema rotante. Each sail arranged at the end of the rotating structure consists of a mast stabilized by 2 side shrouds, a backstay and a jib with a self-winding system to decrease or increase the sail area in order to finish the intensity of the wind. For each sail, as previously mentioned, a self-tacking adjustment system is installed (as normally used in a sailing environment), consisting of a curved rail with trolley, which allows the sail to self-adjust according to any wind variation. See: Fig. 3: Basic single sail system to be installed at the end of each arm of the rotating system.

Vedi Fig. : 4 Dispositivo autovirante normalmente in uso su imbarcazioni per vele disposte anteriormente all’albero che consente il corretto e automatico posizionamento della vela a captare l’energia del vento. Il dispositivo è operativo per vento che proviene da ogni direzione esterna al settore non attivo (± 30÷45°) e in tale zona la vela che risale il vento resta lasca e quindi neutra nel sistema complessivo opponendo resistenza minima alla rotazione. La disposizione di tale sistema ad ognuna delle estremità dei bracci portanti con l’asse velico perpendicolare ai bracci (in analogia a 4 prue con velatura a fiocco disposte a rincorrersi in circolo), come rappresentato in Fig. 5 per un dispositivo a 4 vele, consente l’instaurarsi di un moto rotatorio qualora investito da un flusso d’aria. See Fig.: 4 Self-tacking device normally used on boats for sails arranged in front of the mast which allows the correct and automatic positioning of the sail to capture the energy of the wind. The device is operational for wind that comes from any direction outside the non-active sector (± 30 ÷ 45 °) and in this area the sail that goes up the wind remains loose and therefore neutral in the overall system opposing minimum resistance to rotation. The arrangement of this system at each of the ends of the supporting arms with the sail axis perpendicular to the arms (in analogy to 4 bows with jib sails arranged to chase each other in a circle), as shown in Fig. 5 for a 4-sails device, it allows the establishment of a rotary motion when hit by an air flow.

PRINCIPI DI FUNZIONAMENTO PRINCIPLES OF OPERATION

Una vela risulta portante quando l’angolo di incidenza del vento varia fra 30°÷45° (bolina) e 180° (poppa) con la posizione intermedia di mezzanave 90°. In tal modo le barche sono in grado di muoversi risalendo anche il vento con gli angoli minimi indicati. Vedi Fig. 6 : Angoli minima di incidenza attiva del vento . A sail is load-bearing when the angle of incidence of the wind varies between 30 ° ÷ 45 ° (upwind) and 180 ° (stern) with the intermediate position of 90 ° midship. In this way the boats are able to move even upwind with the minimum angles indicated. See Fig. 6: Minimum angles of active wind incidence.

Con l’applicazione proposta ed il sistema di autoregolazione descritto, in ogni istante e per ogni direzione del vento, nella struttura in rotazione (360°) sono presenti almeno tre vele portanti con angolo di incidenza del vento fra 35° e 180°, mentre una sola vela è in posizione neutra e non dà contributo né significativa resistenza al moto. Vedi Fig. 7 : Andature veliche. With the proposed application and the self-regulation system described, at any time and for every wind direction, in the rotating structure (360 °) there are at least three load-bearing sails with an angle of incidence of the wind between 35 ° and 180 °, while only one sail is in neutral position and does not contribute or significantly resist motion. See Fig. 7: Sail gaits.

L’insieme delle forze che si vengono a determinare comportano una rotazione per effetto della componente tangenziale, con le singole vele che si autoregolano e si dispongono a fondo corsa della corsia autovirante, andando così a cogliere tutta l’energia del vento e creando una sorta di mulino ad asse verticale. The set of forces that are determined entail a rotation due to the tangential component, with the individual sails that self-adjust and arrange themselves at the end of the self-tacking lane, thus capturing all the energy of the wind and creating a sort of vertical axis mill.

Il sistema risulta innovativo rispetto ai mulini esistenti ad asse orizzontale o verticale in quanto, essendo la disposizione delle vele autoregolante e particolarmente “performante”, riesce anche con strutture di dimensioni contenute a captare tutta la forza del vento trasformandola in energia che è funzione della superficie velica esposta e della lunghezza del braccio oltre che, ovviamente, della intensità del vento. The system is innovative compared to existing horizontal or vertical axis mills since, being the arrangement of the sails self-adjusting and particularly "performing", it is also able to capture all the force of the wind with small-sized structures, transforming it into energy that is a function of the surface sail exposed and the length of the arm as well as, of course, the intensity of the wind.

Rispetto agli usuali sistemi eolici ad elica o a pale il sistema appare di efficienza più elevata in quanto presentando superfici esposte al vento molto ampie, non impone necessariamente di installare le vele in posizione elevata rispetto alla superficie di base per ricercare le massime intensità del vento. L’effetto generale è quello di una struttura ad impatto molto contenuto rispetto a quello degli attuali impianti eolici. Compared to the usual propeller or blade wind systems, the system appears to be of higher efficiency as having very large surfaces exposed to the wind, it does not necessarily require installing the sails in a high position with respect to the base surface to seek the maximum wind intensity. The general effect is that of a structure with a very low impact compared to that of current wind farms.

Claims (1)

RIVENDICAZIONI N°1 II concetto base del brevetto consiste nell’applicazione su una struttura rotazionale di vele che, abbinate a sistemi “autoviranti” delle vele stesse, posizionano le superfici in modo sempre appropriato per ogni direzione del vento, sviluppando così una rotazione con utilizzo della energia eolica ed ottenendo un elevato rendimento. I sistemi “autoviranti” applicati come descritto consentono in ogni istante e posizione delle vele lo sviluppo di componente attiva delle forze che genera un moto rotatorio per qualsiasi direzione di provenienza del vento e che, dato l’elevato rendimento, è in grado di funzionare anche con venti deboli. N° 2 II concetto base come descritto nella rivendicazione N° 1 , si applica a sistemi rotanti composti con qualsiasi numero di vele, per rande e fiocchi, per qualsiasi tipo di materiale, per superfici esposte al vento anche rigide, piane, o variamente sagomate e variamente incernierate, su un asse verticale nella zona anteriore , per favorire l’autoregolazione con il sistema auto virante. N° 3 II primo e più importante impiego del brevetto, descritto nella rivendicazione N° 1, è l’utilizzo per produzione di energia elettrica dall’energia eolica. Applicando un generatore di corrente sull’asse del sistema in rotazione, si ottiene la produzione di energia elettrica secondo gli usuali schemi, e con le apparecchiature già normalmente in uso e disponibili sul mercato. Oltre alle regolazioni sul generatore, allo scopo di modulare l’energia eolica, si potrà intervenire sul sistema, riducendo la superfìcie velica utilizzando avvolgi fiocco (come rappresentato in Fig. 8) o applicando sistemi frenanti, o di sgancio automatico al di sopra di un prefissato numero di giri. N° 4 Il sistema proposto nella rivendicazione N° 1 può essere realizzato con qualsivoglia numero di vele, a partire dalla vela singola per qualsiasi forma della vela (eventualmente anche per vele tipo “randa”) o per superfici esposte al vento rigide piane, o sagomate con profili performanti. Nelle zone dove siano presenti venti su una direzione prevalente, il sistema potrà essere realizzato con carrelli di supporto delle vele, montati su rotaia su percorsi allungati “tipo funivia” agganciati ad una fune in rotazione in modo da ridurre al minimo il percorso del sistema rotante nel tratto vento sfavorevole, ed allungare al contrario il percorso attivo. N° 5 Un’ulteriore utilizzo del sistema proposto nella rivendicazione N° 1, è nel campo velico, in quanto il sistema può essere applicato ad uno scafo sufficientemente stabile (es. trimarano) per un duplice utilizzo: ♦ a rotore bloccato con le vele disposte ad assi peralleli,come nell’ uso tradizionale delle imbarcazioni. In tal caso l’imbarcazione procederà con le usuali andature, in relazione alla direzione del vento. ♦ a rotore libero con la presa di forza applicata a ruote a pale immerse nell’acqua ( tipo battello a pale ) con possibilità di procedere in qualsiasi direzione. ♦ a rotore libero, la rotazione del sistema investito dal vento può essere utilizzata per produrre energia a servizio dell’imbarcazione (carica batterie o fornitura forza motrice) mediante un generatore. N° 6 II sistema proposto nella rivendicazione N° 1 può essere inoltre composto su più livelli, sovrapponendo i rotori allineati su di un unico asse verticale, ed apponendo in sommità una copertura a riparo da precipitazioni, o neve. I materiali costituenti le vele, od altre superfici autoviranti, i supporti ed il sistema in genere potranno essere i più vari, con impiego di materiali poveri (es. legno e tela) o di materiali tecnologicamente avanzati per massimizzare rendimenti o dimensioni. Possibili ulteriori sedi di applicazione del sistema, in aggiunta a quelli usuali per generatori eolici, è l’installazione in ambiti attraversati dal vento o correnti d’aria quali ad esempio gallerie dismesse (frequentemente sede di correnti d’aria) ove si potranno disporre elementi in serie per captare integralmente l’energia.CLAIMS N ° 1 The basic concept of the patent consists in the application on a rotational structure of sails which, combined with "self-tacking" systems of the sails themselves, always position the surfaces in an appropriate way for each wind direction, thus developing a rotation with the use of the wind energy and obtaining a high yield. The "self-tacking" systems applied as described allow the development of an active component of the forces at any time and position of the sails that generates a rotary motion for any direction of origin of the wind and which, given the high efficiency, is able to operate even with light winds. N ° 2 The basic concept as described in claim N ° 1, is applied to rotating systems composed of any number of sails, for mainsails and jibs, for any type of material, for surfaces exposed to the wind, even rigid, flat, or variously shaped and variously hinged, on a vertical axis in the front area, to facilitate self-regulation with the self-tacking system. N ° 3 The first and most important use of the patent, described in claim N ° 1, is the use for the production of electricity from wind energy. By applying a current generator on the axis of the rotating system, the production of electricity is obtained according to the usual schemes, and with the equipment already normally in use and available on the market. In addition to the adjustments on the generator, in order to modulate the wind energy, it will be possible to intervene on the system, reducing the sail area using jib furlers (as shown in Fig. 8) or applying braking systems, or automatic release systems above a predetermined number of turns. N ° 4 The system proposed in claim N ° 1 can be realized with any number of sails, starting from the single sail for any shape of the sail (possibly also for "mainsail" type sails) or for rigid flat surfaces exposed to the wind, or shaped with performing profiles. In areas where there are winds on a prevailing direction, the system can be made with sails support trolleys, mounted on rails on elongated "cableway-like" paths hooked to a rotating rope in order to minimize the path of the rotating system in the unfavorable wind section, and instead lengthen the active route. N ° 5 A further use of the system proposed in claim N ° 1 is in the sailing field, as the system can be applied to a sufficiently stable hull (e.g. trimaran) for a dual use: ♦ with the rotor locked with the sails arranged in perallel axes, as in the traditional use of boats. In this case the boat will proceed with the usual paces, in relation to the wind direction. ♦ with free rotor with power take-off applied to paddle wheels immersed in water (paddle boat type) with the possibility of proceeding in any direction. ♦ with free rotor, the rotation of the system hit by the wind can be used to produce energy for the boat (battery charger or power supply) by means of a generator. N ° 6 The system proposed in claim N ° 1 can also be composed on several levels, by superimposing the rotors aligned on a single vertical axis, and by affixing at the top a cover sheltered from precipitation or snow. The materials constituting the sails, or other self-tacking surfaces, the supports and the system in general can be the most varied, with the use of poor materials (eg wood and canvas) or technologically advanced materials to maximize yields or dimensions. Possible further sites of application of the system, in addition to the usual ones for wind generators, is the installation in areas crossed by wind or air currents such as abandoned tunnels (frequently seat of air currents) where elements can be arranged in series to fully capture the energy.
ITTN20060006 2006-04-20 2006-04-20 VERTICAL AXIS ROTATIONAL SYSTEM AND SAIL CONCEPTION FOR WIND ENERGY PRODUCTION ITTN20060006A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTN20060006 ITTN20060006A1 (en) 2006-04-20 2006-04-20 VERTICAL AXIS ROTATIONAL SYSTEM AND SAIL CONCEPTION FOR WIND ENERGY PRODUCTION
PCT/EP2007/003393 WO2007121904A1 (en) 2006-04-20 2007-04-18 Sail for the rotor of a wind generation facility

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ITTN20060006 ITTN20060006A1 (en) 2006-04-20 2006-04-20 VERTICAL AXIS ROTATIONAL SYSTEM AND SAIL CONCEPTION FOR WIND ENERGY PRODUCTION

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112302863A (en) * 2020-12-14 2021-02-02 广州市陆洋复合材料有限公司 Vertical shaft sail type wind driven generator
CN112302863B (en) * 2020-12-14 2022-04-29 广州市陆洋复合材料有限公司 Vertical shaft sail type wind driven generator

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