FR2595763A3 - Sail component for wind turbine - Google Patents

Sail component for wind turbine Download PDF

Info

Publication number
FR2595763A3
FR2595763A3 FR8600903A FR8600903A FR2595763A3 FR 2595763 A3 FR2595763 A3 FR 2595763A3 FR 8600903 A FR8600903 A FR 8600903A FR 8600903 A FR8600903 A FR 8600903A FR 2595763 A3 FR2595763 A3 FR 2595763A3
Authority
FR
France
Prior art keywords
blade
wheel
sail
central
wind turbine
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.)
Pending
Application number
FR8600903A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8600903A priority Critical patent/FR2595763A3/en
Publication of FR2595763A3 publication Critical patent/FR2595763A3/en
Pending legal-status Critical Current

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
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • 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
    • 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
    • Y02E10/72—Wind turbines with rotation axis in 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

The invention relates to a device forming the blade of a multi-blade wind-driven wheel, each blade comprising a sail fixed to a framework made up of a central arm and a variable number of perpendicular crosspieces attached to this arm, the angle of inclination of each crosspiece being variable along the length of this arm so as to form a twisted sail; the whole of this device making it possible to improve the efficiency of the wind-driven wheel.

Description

L'invention concerne la roue multipales d'un moteur à vent.The invention relates to the multi-blade wheel of a wind motor.

Habituellement ces roues sont construites à partir d'une infrastructure circulaire, composée de 2 ou 3 cerceaux métalliques, avec des rayonnages radiaux les maintenant équidistants, et sur lesquels sont fixés les pales de la roue (fig. 1). Une variante consiste en des porte pales maintenus sur un moyeu central, chaque porte pale revoit une pale métallique à angle de calage invariable fixée sur le porte pale par son bord d'attaque ou de fuite (fig. 2) Dans ces 2 cas l'angle de calage est constant tout le long de la pale. Usually these wheels are constructed from a circular infrastructure, composed of 2 or 3 metal hoops, with radial shelving keeping them equidistant, and on which the blades of the wheel are fixed (fig. 1). A variant consists of blade holders held on a central hub, each blade holder has a metal blade with invariable pitch angle fixed on the blade holder by its leading or trailing edge (fig. 2) In these 2 cases the setting angle is constant all along the blade.

Le porte à faux important exige une infrastructure de soutien de pales trés résistants ainsi que des caractéristiques mécaniques élevées (tôle épaisse - faible longueur et largeur) - pour que la pale ne se déforme pas. (fig. 3 et 4). Ces dispositifs sont en général trés lourds, plusieurs dizaines de kilogs par roue - et le rendement s'en trouve amoindri. De plus il n'autorise pas de rotation supérieur à 60 tours/ minutes du fait des contraintes qu'engendre l'effet de la vitesse appliquée à de telles masses.The large overhang requires a support infrastructure for very resistant blades as well as high mechanical characteristics (thick sheet - short length and width) - so that the blade does not deform. (fig. 3 and 4). These devices are generally very heavy, several tens of kilograms per wheel - and the efficiency is reduced. In addition, it does not allow rotation greater than 60 revolutions / minute due to the constraints which the effect of the speed applied to such masses generates.

La voilure de la roue proposée ci-après comporte plusieurs éléments de voilure identiques et équidistants fixés radialement sur un moyeu central.The airfoil of the wheel proposed below comprises several identical and equidistant airfoil elements fixed radially on a central hub.

La présente invention concerne la conception de ce élément de voilure de la roue. Grâce à un centrage de la position de la pale P, par rapport à son porte pale, l'on réduit fortement le poids de la roue par une simplification de l'infrastructure de fixation de la pale sur le porte pale qui conduit à une diminution des caractéristiques mécaniques de la pale (épaisseur moins élevée - possibilité d'emploi de matériaux plus légers : aluminium, polyesther armé). Il est. également possible d'obtenir avec ce dispositif un angle de calage de la pale, évolutif tout le long de sa longueur et d'avoir un profil vrillé qui donne un rendement meilleur que celui d'un profil droit.The present invention relates to the design of this airfoil element of the wheel. By centering the position of the blade P, with respect to its blade holder, the weight of the wheel is greatly reduced by simplifying the infrastructure for fixing the blade to the blade holder, which leads to a reduction mechanical characteristics of the blade (less thickness - possibility of using lighter materials: aluminum, reinforced polyester). It is. also possible to obtain with this device a setting angle of the blade, scalable along its length and to have a twisted profile which gives a better yield than that of a straight profile.

Le dispositif proposé comporte (fig. 5) une ossature centrale C de préférence tubulaire sur laquelle sont fixées perpendiculairement à celle-ci des traverses T et dont le nombre est fonction de la longueur
AB de la voilure de la pale P et des caractéristiques mécaniques du matériau constituant celle-ci. Chaque traverse T a un angle de calage par rapport au plan de rotation I de la roue qui peut être constant de
A vers B : I: A2 vs3 permettant d'obtenir facilement un profil vrillé conforme aux nomes habituellement obtenues lors des calculs de profil de pale. Le positionnement sur l'ossature centrale C de chaque traverse T se fait sensiblement en son point de symétrie S. The proposed device comprises (fig. 5) a central framework C preferably tubular on which are fixed perpendicular thereto crosspieces T and the number of which depends on the length
AB of the airfoil of the blade P and of the mechanical characteristics of the material constituting it. Each crosspiece T has a setting angle relative to the plane of rotation I of the wheel which can be constant from
A to B: I: A2 vs3 allowing to easily obtain a twisted profile conforming to the nomes usually obtained during blade profile calculations. The positioning on the central framework C of each cross member T is made substantially at its point of symmetry S.

Claims (4)

REVENDICATIONS ou non sur laquelle s'appuie la surface P de la voilure de la pale. or not on which the surface P of the blade airfoil rests. d'un moteur à vent caractérisé par une structure centrale C vrillée a wind motor characterized by a twisted central structure C I - Elément de voilure servant à la constitution de la roue multipalesI - Wing element used for the constitution of the multi-blade wheel 2 - Dispositif selon la revendication I caractérisé par une ossature2 - Device according to claim I characterized by a frame centrale C, tubulaire ou non sur laquelle se fixent orthogonalement central C, tubular or not on which are fixed orthogonally un nombre variable de traverses T. a variable number of sleepers T. 3 - Dispositif selon la revendication I et 2 caractérisé par le fait3 - Device according to claim I and 2 characterized in that que chaque traverse T a un angle de calage 9( par rapport au plan de that each cross member T has a setting angle 9 (relative to the plane of rotation de la roue I pouvant être pour chacune d'elles, soit rotation of the wheel I can be for each of them, either constant selon toute la longueur AB de la pale, soit décroissant en constant along the entire length AB of the blade, i.e. decreasing in allant de l'extrémité intérieure A à l'extrémité extérieure B. from inner end A to outer end B. 4 - Dispositif selon les revendications I et 2 caractérisé par le fait4 - Device according to claims I and 2 characterized in that que le positionnement sur l'ossature centrale C, de chaque traverse T that the positioning on the central framework C, of each cross member T se fait sensiblement en son point de symétrie S.  is made substantially at its point of symmetry S.
FR8600903A 1986-01-21 1986-01-21 Sail component for wind turbine Pending FR2595763A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8600903A FR2595763A3 (en) 1986-01-21 1986-01-21 Sail component for wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8600903A FR2595763A3 (en) 1986-01-21 1986-01-21 Sail component for wind turbine

Publications (1)

Publication Number Publication Date
FR2595763A3 true FR2595763A3 (en) 1987-09-18

Family

ID=9331395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8600903A Pending FR2595763A3 (en) 1986-01-21 1986-01-21 Sail component for wind turbine

Country Status (1)

Country Link
FR (1) FR2595763A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008070917A1 (en) * 2006-12-13 2008-06-19 Aerogenesis Australia Pty Ltd Wind turbine & wind turbine blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008070917A1 (en) * 2006-12-13 2008-06-19 Aerogenesis Australia Pty Ltd Wind turbine & wind turbine blade

Similar Documents

Publication Publication Date Title
CA2355690C (en) Wind machine with slanted blades
CA1219849A (en) Enhanced propulsion aft rotor for rotary wing aircraft, and device for achieving said enhanced propulsion
FR2719550A1 (en) Anti-torque device with rotor and stator rectifier careened, and phase modulation of the rotor blades, for helicopter.
EP0680871A1 (en) Anti-torque device with shrouded rotor and phase modulation of the rotor blades positions for helicopters
FR2683504A1 (en) Anti-torque system with rear rotor for a helicopter
FR2537218A1 (en) TURBOMACHINE OF THE ROTODYNAMIC TYPE
FR2595763A3 (en) Sail component for wind turbine
FR2719552A1 (en) Rectifier blade for anti-torque device with rotor and stator rectifier keeled helicopter.
FR2602925A1 (en) Internal ventilation device for a rotating electric machine such as an alternator
FR2541732A1 (en) Compound anemodynamic motor with its applications to propulsion
FR2581613A1 (en) DEVICE FOR TRANSPORTING AND LIFTING LOADS FOR THEIR DISPLACEMENT BY AIR PROPULSION
EP2337951B1 (en) Wind turbine with vertical axis
SU1229418A1 (en) Wind turbine electro-generator
RU2124649C1 (en) Windwheel
FR2556784A1 (en) Device for collecting and converting wind energy into mechanical and electrical energy
WO1996012105A1 (en) Multiple-shaft windmills
EP0069208A1 (en) Windwheel with diverging action
FR2766241A1 (en) Wind turbine,
FR2520814A1 (en) Circular rail trolley mounted vert. axis aero generator - has trolley fitted with guide wheels supporting outer rim of turbine
FR2575790A3 (en) Wind machine wheel
EP0142506B1 (en) Wind turbin propeller
DE3418946A1 (en) Radial-flow reaction turbine
FR2473638A1 (en) Wind turbine with vertical rotor - has concrete stator panels defining tapering intake channels for max. wind utilisation
EP0665795B1 (en) Rotary wing comprising two coaxial rotors
FR2577515A1 (en) METAL HUB FOR HELICOPTER ROTOR