FR2484553A1 - Wind driven rotary generator - has vertical shaft with vanes mounted at corners of horizontal rotating frames - Google Patents
Wind driven rotary generator - has vertical shaft with vanes mounted at corners of horizontal rotating frames Download PDFInfo
- Publication number
- FR2484553A1 FR2484553A1 FR8011159A FR8011159A FR2484553A1 FR 2484553 A1 FR2484553 A1 FR 2484553A1 FR 8011159 A FR8011159 A FR 8011159A FR 8011159 A FR8011159 A FR 8011159A FR 2484553 A1 FR2484553 A1 FR 2484553A1
- Authority
- FR
- France
- Prior art keywords
- wind turbine
- turbine rotor
- rotor according
- trough
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000035515 penetration Effects 0.000 claims description 5
- 208000029152 Small face Diseases 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 241001083548 Anemone Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- 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
- F03D3/068—Cyclic movements mechanically controlled by the rotor structure
-
- 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
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/72—Adjusting of angle of incidence or attack of rotating blades by turning around an axis parallel to the rotor centre line
-
- 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
Landscapes
- 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)
- Wind Motors (AREA)
Abstract
Description
L'invention est relative aux éoliennes à axe de rotation vertical notamment de type panémones, c'est-à-dire susceptibles de fonctionner sans nécessiter d'orientation préalable en fonction de la direction du vent. Parmi celles-ci certaines, dites à circulation contrô lee, sont pourvues de pales orientables ou déformables ce qui en complique la conception. Les autres sont à pales fixes par rapport à l'ensemble du rotor qui forme ainsi un système indéformable. Dans ce cas l'avantage de la simplicité est cependant au moins partiellement compensé par le fait que ces panemones, à partir d'une vitesse de vent de l'ordre de 4 à 5 m/s doivent hêtre équipées d'un dispositif de démarrage auxiliaire.En outre, il est bien connu que ces panémones sont très vulnérables au givrage qui nuit à leur efficacité aérodynamique et engendre des balourds qui detruisent ltéquilibre mécanique, ce qui est souvent à l'origine de ruptures dans la structure. The invention relates to wind turbines with a vertical axis of rotation, in particular of the panemone type, that is to say capable of operating without requiring prior orientation as a function of the wind direction. Among these, some, called controlled circulation, are provided with orientable or deformable blades which complicates the design thereof. The others are fixed blades relative to the whole of the rotor which thus forms a non-deformable system. In this case the advantage of simplicity is however at least partially offset by the fact that these panemones, from a wind speed of the order of 4 to 5 m / s must be equipped with a starting device In addition, it is well known that these panemones are very vulnerable to icing which affects their aerodynamic efficiency and generates imbalances which destroy the mechanical balance, which is often the cause of breaks in the structure.
L'invention,qui concerne ce dernier type de panemones,vise à remédier à ces inconvénients majeurs que sont le défaut d'auto-démarrage et la vulnérabilité au givrage en proposant un rotor constitué par une première structure tubulaire rigide de base à laquelle est fixée,pour chaque aube ,une seconde structure,rigide elle aussi, et formant un squelette en forme d'auge pour cette aube, un habillage souple rapporté sur ce squelette donnant à l'aube sa forme exterieure définitive mais déformable
L'habillage, qui peut aussi etre rapporté sur la première structure,donne du coté de l'attaque une forme arrondie en nez favorisant sa pénétration dans l'air, et déformable du fait de la résistance à cette penétration, ce qui empêche les dépôts de givre d'adhérer à ce bord d'attaque.Du coté de la fuite, opposé au premier, l'habillage souple prolonge la forme en auge de la structure rigide de l'aube, en donnant meilleure prise à la poussée du vent arriere, alors qu'il flotte dans le lit du vent en lui opposant une resistance faible lorsque l'aube se trouve nez au vent.The invention, which relates to the latter type of panemones, aims to remedy these major drawbacks which are the failure to auto-start and the vulnerability to icing by proposing a rotor constituted by a first rigid tubular basic structure to which is fixed. , for each blade, a second structure, also rigid, and forming a skeleton in the form of a trough for this blade, a flexible covering attached to this skeleton giving the blade its final but deformable external shape
The covering, which can also be attached to the first structure, gives the side of the attack a rounded nose shape favoring its penetration into the air, and deformable due to the resistance to this penetration, which prevents deposits of frost to adhere to this leading edge. On the side of the leak, opposite the first, the flexible covering extends the trough shape of the rigid structure of the dawn, giving better grip to the thrust of the tailwind , while it floats in the bed of the wind by offering it a weak resistance when the dawn is nose to the wind.
l'invention et certaines autres caractéristiques sera mieux comprise à la lumière de la description qui suit et pour lfintelligence de laquelle on se réfèrera aux dessins parmi lesquels - la figure 1 est une représentation schématique d'une éolienne de type anémone à laquelle s'applique l'invention, - la figure 2 est une vue en plan horizontal d'un rotor conforme à l'invention, illustrant de façon simplifiée la déformation de l'habilla- ge des aubes, - la figure 3 montre en coupe horizontale le détail de la constitution d'une aube, - la figure 4 est une coupe verticale d'un bras du rotor. the invention and certain other characteristics will be better understood in the light of the description which follows and for the intelligence of which reference will be made to the drawings among which - FIG. 1 is a schematic representation of an anemone type wind turbine to which applies the invention, - Figure 2 is a horizontal plan view of a rotor according to the invention, illustrating in a simplified manner the deformation of the dressing of the blades, - Figure 3 shows in horizontal section the detail of the constitution of a blade, - Figure 4 is a vertical section of an arm of the rotor.
On voit à la figure 1, représentée schématiquement,une éolienne dont l'axe vertical I est supporté en rotation par des roulements 2 solidaires d'un socle 3. Le socle 3 est avantageusement combiné à une carrosserie du type armoire abritant de façon classique une poulie 4 solidaire de l'axe 1 dont le mouvement est transmis par courroie 5 au pignon d'entraînement 6 de l'arbre d'un alternateur 7. L'axe 1 porte en partie haute un rotor dont il est solidaire en rotation et qui tourne sous l'action du vent. We see in Figure 1, shown schematically, a wind turbine whose vertical axis I is rotatably supported by bearings 2 secured to a base 3. The base 3 is advantageously combined with a cabinet type body housing conventionally a pulley 4 secured to axis 1, the movement of which is transmitted by belt 5 to drive pinion 6 of the shaft of an alternator 7. Axis 1 carries a rotor at the top, of which it is integral in rotation and which turns under the action of the wind.
Le rotor comporte une structure rigide de base formée de deux etages inférieur et superieur de bras radiaux horizontaux 8 dont les extrémités peuvent être avantageusement réunies dans leur plan par des câbles de haubanage 9(figure 2). De même , des câbles 9 similaires réuniront de préférence en diagonale dans des plans radiaux verticaux, les extrémités des bras inférieurs 8 à des points situés dans le plan de ltétage supérieur et au voisinage de l'axe 1. Entre les extrémités correspondantes des bras 8 de chaque étage sont disposes les aubes 10 du rotor.Dans l'exemple décrit, et comme il apparaît à la figure 2, les aubes 10 sont au nombre de quatre, mais il est clair que deux suffisent au fonctionnement de l'éolienne et que pour des raisons d'efficacité, ce nombre peut selon les cas, être augmenté, sans incidence sur ltessence de l'invention. The rotor has a rigid base structure formed by two lower and upper stages of horizontal radial arms 8, the ends of which can advantageously be joined in their plane by guying cables 9 (FIG. 2). Likewise, similar cables 9 will preferably join diagonally in vertical radial planes, the ends of the lower arms 8 at points situated in the upper stage plane and in the vicinity of the axis 1. Between the corresponding ends of the arms 8 the blades of the rotor are arranged on each stage. In the example described, and as it appears in FIG. 2, the blades 10 are four in number, but it is clear that two are sufficient for the operation of the wind turbine and that for reasons of efficiency, this number may, depending on the case, be increased, without affecting the essence of the invention.
Comme on le voit sur la coupe de la figure 4, les bras 8 formant la première structure rigide du rotor sont avantageusement des profilés parallélépipédiques tubulaires usuels. Le même type de profilé est utilisé pour former entre les extrémités de chaque paire de bras 8, des montants verticaux 11 qui font partie de la structure rigide des aubes 10, l'assemblage entre les bras 8 et les montants Il ne posant aucun-problème particulier. La structure rigide d'une aube 10 est complétée par un élément vertical 12 ayant approximativement la forme d'une auge en tole pliée à section rectangulaire et fixé sur le montant 11 par tout moyen approprie, le montant 11 se trouvant dans l'angle intérieur le plus rapproché de l'axe 1 du rotor.Le bord extérieur 13 le plus éloigné de l'axe 1 de l'auge 12,a une hauteur voisine de la largeur du montant 11, alors que le bord intérieur 14 est relativement plus long et se termine par un pliage en talonnette 15 formant une rampe inclinée vers l'intérieur du rotor,comme representé à la figure 3. As can be seen in the section of FIG. 4, the arms 8 forming the first rigid structure of the rotor are advantageously standard tubular parallelepiped profiles. The same type of profile is used to form between the ends of each pair of arms 8, vertical uprights 11 which are part of the rigid structure of the blades 10, the assembly between the arms 8 and the uprights It poses no problem. particular. The rigid structure of a blade 10 is completed by a vertical element 12 having approximately the shape of a folded sheet trough with rectangular section and fixed on the upright 11 by any suitable means, the upright 11 being in the interior corner closest to the axis 1 of the rotor. The outer edge 13 furthest from the axis 1 of the trough 12 has a height close to the width of the upright 11, while the inner edge 14 is relatively longer and ends with a heel-folding 15 forming a ramp inclined towards the inside of the rotor, as shown in FIG. 3.
La structure rigide constituée par le montant Il et l'auge 12 forme le squelette de l'aube 10. Sur ce squelette est fixé par collage ou autre moyen mecanique, sur les bords 13, 14 de l'auge 12, un film 16 souple mais de bonne tenue mecanique, de sorte que du côte du fond de l'auge 12 il soit libre de tout contact avec celle-ci et prenne une forme arrondie en nez 17, stable tant qu'aucune action mécanique ne s'exerce sur elle. Du côté extérieur 13 de l'auge 12, le film 16 s"etend sur une certaine longueur au-delà de celui-ci, formant un volet souple et libre 18. Il en est de même du côté interieur 14 mais le volet libre 19 ainsi formé au-delà du pliage en baïonnette 15 stétend sur une longueur nettement superieure. The rigid structure constituted by the upright II and the trough 12 forms the skeleton of the vane 10. On this skeleton is fixed by gluing or other mechanical means, on the edges 13, 14 of the trough 12, a flexible film 16 but of good mechanical strength, so that on the side of the bottom of the trough 12 it is free from any contact with it and takes a rounded nose shape 17, stable as long as no mechanical action is exerted on it . On the outer side 13 of the trough 12, the film 16 s "extends over a certain length beyond it, forming a flexible and free flap 18. It is the same on the interior side 14 but the free flap 19 thus formed beyond the bayonet folding 15 stetends over a clearly greater length.
De préférence, un second film 20 sera egalement fixé à l'inté- rieur de l'auge 12 sur la grande face du montant 11, la rampe inclinée de la baïonnette 15, et sur le volet 19, pour renforcer celui-ci qui joue un rôle très important comme il apparaît plus loin. Preferably, a second film 20 will also be fixed inside the trough 12 on the large face of the upright 11, the inclined ramp of the bayonet 15, and on the flap 19, to reinforce the latter which plays a very important role as it appears below.
En variante, le fond de l'auge 12 pourrait avoir une forme arrondie suivant, légèrement en retrait, la forme propre du nez 17, ce qui permettrait au film 16 de venir en appui sur ce fond lorsque les déformations du nez 17 deviennent trop importantes. Cependant, cette forme n'est pas indispensable,quoique utile, et elle nécessite pour la fabrication de l'auge 12 de faire appel à un outillage special. As a variant, the bottom of the trough 12 could have a rounded shape following, slightly recessed, the proper shape of the nose 17, which would allow the film 16 to come to bear on this bottom when the deformations of the nose 17 become too great . However, this shape is not essential, although useful, and it requires for the manufacture of the trough 12 to use a special tool.
La figure 2 illustre le comportement d'un rotor équipé d'aubes 10 telles que celles qui viennent d'être decrites,en fonctionnement dans un vent representé par les flèches 21. Comme on le'voit, le nez arrondi 17 favorise la pénétration de l'aube 10 dans l'air, alors que les volets souples 18, 19 se mettent dans le lit du vent 21 en opposant une résistance faible lorsque le vent est de bout, et, dans le cas contraire augmentent la surface de poussée du vent sur l'aube 10, ce qui facilite en outre 1' auto-démarrage du rotor même par vent faible. Les positions prises par les volets 18,19 en fonction de l'incidence du vent sur les aubes 10 apparaissent clairement à la figure 2. FIG. 2 illustrates the behavior of a rotor equipped with blades 10 such as those which have just been described, in operation in a wind represented by the arrows 21. As can be seen, the rounded nose 17 promotes the penetration of the blade 10 in the air, while the flexible flaps 18, 19 are placed in the wind bed 21 by offering a weak resistance when the wind is at end, and, in the contrary case, increase the thrust surface of the wind on the blade 10, which further facilitates the self-starting of the rotor even in light winds. The positions taken by the flaps 18, 19 as a function of the incidence of the wind on the blades 10 appear clearly in FIG. 2.
Du fait des qualités de souplesse du film 16 utilisé pour l'habillage du squelette de l'aube 10, le nez 17 se déforme légèrement au vent, si bien que tout depôt de givre qui pourrait se former en cet endroit se trouve automatiquement décolLé. I1 en va évidemment de même pour les volets souples 18 et 19. Le film sera avantageusement constitué d'un matériau plastique offrant à la fois les qualités de souplesse et de tenue mecanique requises. Le choix se portera de préférence sur un matériau qui est en outre antiadhésif pour le givre. Due to the flexibility qualities of the film 16 used for covering the skeleton of the blade 10, the nose 17 is slightly deformed in the wind, so that any deposit of frost which could form in this place is automatically peeled off. I1 obviously goes the same for the flexible shutters 18 and 19. The film will advantageously be made of a plastic material offering both the qualities of flexibility and mechanical strength required. The choice will preferably be made on a material which is also non-stick for frost.
Dans le but d'améliorer encore l'efficacité du rotor, les bras horizontaux formant la première structure rigide, seront habillés de manière similaire à celle utilisée pour les aubes 10. La figure 4 illustre cette disposition qui donne à chaque bras un bord d'attaque souple et arrondi 17 favorisant sa pénétration dans l'air et deux volets de fuite souples 18, qui dans ce cas sont de même longueur et favorisent la poussée du vent arrière. Cette caractéristique favorise également le démarrage du rotor par vent faible. In order to further improve the efficiency of the rotor, the horizontal arms forming the first rigid structure, will be dressed in a similar manner to that used for the blades 10. Figure 4 illustrates this arrangement which gives each arm an edge flexible and rounded attack 17 favoring its penetration into the air and two flexible escape flaps 18, which in this case are of the same length and favor the thrust of the rear wind. This characteristic also favors the starting of the rotor in weak wind.
Il ressort de ce qui précéde que tous les éléments constituant le rotor sont de conception très simple et qu'il peut être fait appel à des produits normalisés du marché que l'on peut monter soi-même sans habileté manuelle ni outillage particuliers. It appears from the above that all the elements constituting the rotor are of very simple design and that it is possible to use standardized products from the market which can be assembled yourself without manual skill or special tools.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8011159A FR2484553A1 (en) | 1980-05-12 | 1980-05-12 | Wind driven rotary generator - has vertical shaft with vanes mounted at corners of horizontal rotating frames |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8011159A FR2484553A1 (en) | 1980-05-12 | 1980-05-12 | Wind driven rotary generator - has vertical shaft with vanes mounted at corners of horizontal rotating frames |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2484553A1 true FR2484553A1 (en) | 1981-12-18 |
Family
ID=9242124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8011159A Withdrawn FR2484553A1 (en) | 1980-05-12 | 1980-05-12 | Wind driven rotary generator - has vertical shaft with vanes mounted at corners of horizontal rotating frames |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2484553A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122919A1 (en) * | 1991-07-11 | 1993-01-14 | Istvan Horvath | Hollow vane wind rotor - has guide surfaces which are held together by rib formation to form air chambers along vane |
GB2489325A (en) * | 2011-03-22 | 2012-09-26 | John Timothy James Marshall | Vertical axis wind turbine with curved blades |
EP2518307A1 (en) * | 2009-12-24 | 2012-10-31 | Energyn Inc. | Rotor for wind power generation, and wind power generator including same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR555175A (en) * | 1922-08-17 | 1923-06-26 | Overhead drive wheel | |
FR2289767A1 (en) * | 1974-11-04 | 1976-05-28 | Morin Bernard | Wind driven power wheel with two horiz. sail arms - has toggles holding sails horiz. when moving against wind |
FR2350478A1 (en) * | 1976-05-07 | 1977-12-02 | Lefebvre Gerhard | Wind powered electricity generating system - has concave drive blades and stabilising blade elements arranged on vertical axis |
DE2829716A1 (en) * | 1977-07-07 | 1979-01-25 | Univ Gakko Hojin Tokai | WIND POWER MACHINE WITH VERTICAL AXIS |
-
1980
- 1980-05-12 FR FR8011159A patent/FR2484553A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR555175A (en) * | 1922-08-17 | 1923-06-26 | Overhead drive wheel | |
FR2289767A1 (en) * | 1974-11-04 | 1976-05-28 | Morin Bernard | Wind driven power wheel with two horiz. sail arms - has toggles holding sails horiz. when moving against wind |
FR2350478A1 (en) * | 1976-05-07 | 1977-12-02 | Lefebvre Gerhard | Wind powered electricity generating system - has concave drive blades and stabilising blade elements arranged on vertical axis |
DE2829716A1 (en) * | 1977-07-07 | 1979-01-25 | Univ Gakko Hojin Tokai | WIND POWER MACHINE WITH VERTICAL AXIS |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122919A1 (en) * | 1991-07-11 | 1993-01-14 | Istvan Horvath | Hollow vane wind rotor - has guide surfaces which are held together by rib formation to form air chambers along vane |
EP2518307A1 (en) * | 2009-12-24 | 2012-10-31 | Energyn Inc. | Rotor for wind power generation, and wind power generator including same |
EP2518307A4 (en) * | 2009-12-24 | 2014-06-04 | Energyn Inc | Rotor for wind power generation, and wind power generator including same |
GB2489325A (en) * | 2011-03-22 | 2012-09-26 | John Timothy James Marshall | Vertical axis wind turbine with curved blades |
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