FR2854931A1 - Cyclonic windmill has vertical axis and power blades and rotates inside semi-cylindrical enclosure generating central depression optimizing movement - Google Patents

Cyclonic windmill has vertical axis and power blades and rotates inside semi-cylindrical enclosure generating central depression optimizing movement Download PDF

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Publication number
FR2854931A1
FR2854931A1 FR0305767A FR0305767A FR2854931A1 FR 2854931 A1 FR2854931 A1 FR 2854931A1 FR 0305767 A FR0305767 A FR 0305767A FR 0305767 A FR0305767 A FR 0305767A FR 2854931 A1 FR2854931 A1 FR 2854931A1
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France
Prior art keywords
rotor
wind turbine
turbine according
air
enclosure
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Application number
FR0305767A
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French (fr)
Inventor
Guy Maurice Louis Rol Gauthier
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Individual
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Individual
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Priority to FR0305767A priority Critical patent/FR2854931A1/en
Publication of FR2854931A1 publication Critical patent/FR2854931A1/en
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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 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0436—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor
    • F03D3/0445—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield being fixed with respect to the wind motor
    • F03D3/0463—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield being fixed with respect to the wind motor with converging inlets, i.e. the shield intercepting an area greater than the effective rotor area
    • 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 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/32—Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
    • 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
    • Y02E10/728—Onshore wind turbines
    • 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)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The cyclonic windmill has a vertical axis and power blades. It rotates inside a semi-cylindrical enclosure and generates a central depression optimizing its movement.

Description

La présente invention concerne une éolienne à axe vertical tournant àThe present invention relates to a vertical axis wind turbine rotating at

l'intérieur d'une enceinte auto-orientable destinée à générer un phénomène pseudo-cyclonique optimisant son rendement.  inside a self-rotating enclosure intended to generate a pseudo-cyclonic phenomenon optimizing its performance.

Le domaine des éoliennes comprend un grand nombre de modèles, à axe vertical ou horizontal, à pales de portance ou aubes de poussée, mais ce modèle est original en ce qu'il est conçu de façon à optimiser le rendement d'une éolienne en générant artificiellement un phénomène ressemblant au cyclone naturel, c'est à dire un vent tourbillonnant s'échappant par le haut.  The field of wind turbines includes a large number of models, vertical or horizontal axis, lift blades or thrust blades, but this model is original in that it is designed to optimize the performance of a wind turbine by generating artificially a phenomenon resembling the natural cyclone, that is to say a swirling wind escaping from above.

C'est un fort écart de température entre le sol et l'air qui induit le phénomène naturel, mais dans le cas de l'éolienne, on obtient le résultat en orientant l'air dans un circuit rotatif forcé augmenté d'une aspiration par le haut.  It is a strong temperature difference between the ground and the air which induces the natural phenomenon, but in the case of the wind turbine, one obtains the result by directing the air in a forced rotary circuit increased by a suction by the top.

Dans un premier mode de construction, la partie motrice de l'éolienne s'étend verticalement autour de son axe de rotation, au milieu d'un dispositif autoorientable face au vent, canalisant et accélérant l'air de chaque côté du rotor pour pousser les aubes soit directement, soit en contournant le rotor, un peu à la manière de la turbine hydraulique " Pelton ". De cette façon, un maximum d'air est 20 dirigé vers les aubes, en évitant par ailleurs la perte de poussée différentielle entre l'aube face au vent et l'aube qui remonte contre le vent d'un rotor " Savonius "  In a first construction method, the driving part of the wind turbine extends vertically around its axis of rotation, in the middle of a self-orientable device facing the wind, channeling and accelerating the air on each side of the rotor to push the blades either directly or bypassing the rotor, a bit like the "Pelton" hydraulic turbine. In this way, a maximum of air is directed towards the blades, avoiding in addition the loss of differential thrust between the blade facing the wind and the blade which goes up against the wind of a "Savonius" rotor.

par exemple.for example.

Selon une autre caractéristique de l'invention, les pales du rotor sont d'un 25 nombre variable, et ont une forme hélicdoïdale, tournant d'un demi tour entre la base et le sommet et formant un angle de 75 avec l'horizontale.  According to another characteristic of the invention, the rotor blades are of a variable number, and have a helical shape, rotating half a turn between the base and the top and forming an angle of 75 with the horizontal.

Selon un procédé déjà connu, les pales se subdivisent en deux parties dans le sens de la hauteur pour détruire les tourbillons d'air qui auraient tendance à se 30 créer sur le revers des aubes de poussée, et les aubes sont éloignées de leur axe de rotation pour que s'installe une dépression au centre du dispositif.  According to a method already known, the blades are divided into two parts in the direction of the height to destroy the air vortices which would tend to be created on the reverse side of the thrust blades, and the blades are distant from their axis of rotation so that a depression is installed in the center of the device.

Selon une autre caractéristique de l'invention, I'enceinte qui entoure le rotor présente deux entrées d'air symétriques en forme de venturi prononce: - L'une des entrées conduit directement sur les aubes et est subdivisée transversalement par plusieurs pans inclinés de 15 par rapport à l'horizontale, de façon à ce que l'air arrive perpendiculairement sur les aubes.  According to another characteristic of the invention, the enclosure which surrounds the rotor has two symmetrical air inlets in the form of a venturi pronounced: - One of the inlets leads directly to the blades and is divided transversely by several inclined sides of 15 with respect to the horizontal, so that the air arrives perpendicularly on the blades.

- L'autre entrée n'est pas subdivisée et conduit l'air de l'autre côté du plan sécant vertical et médian de l'ensemble. Une partie de l'air est détournée successivement 40 par plusieurs déflecteurs tout au long des 3/4 sensiblement de la circonférence du rotor, à la manière d'une turbine hydrauliques Pelton ".  - The other entrance is not subdivided and leads the air to the other side of the vertical and median secant plane of the whole. A portion of the air is diverted successively 40 by several deflectors throughout 3/4 substantially of the circumference of the rotor, in the manner of a Pelton hydraulic turbine ".

Selon une autre caractéristique de Iinvention, le toit de l'enceinte, audessus du rotor, est ouvert sur la moitié de sa surface, sous le vent, de façon à ce que l'air 45 interne à l'enceinte soit aspiré par le vent extérieur.  According to another characteristic of the invention, the roof of the enclosure, above the rotor, is open over half of its surface, downwind, so that the air 45 internal to the enclosure is sucked in by the wind outside.

Selon un procédé déjà connu, I'enceinte se positionne face au vent par un effet girouette autour d'un axe vertical co-axial à celui du rotor.  According to a method already known, the enclosure is positioned facing the wind by a vane effect around a vertical axis co-axial to that of the rotor.

L'invention va maintenant être décrite de façon plus détaillée en se référant aux figures annexées: - Figure 1 est une coupe horizontale schématique de l'éolienne au milieu de son enceinte.  The invention will now be described in more detail with reference to the accompanying figures: - Figure 1 is a schematic horizontal section of the wind turbine in the middle of its enclosure.

- Figure 2 est une coupe verticale schématique de l'éolienne au milieu de son enceinte.  - Figure 2 is a schematic vertical section of the wind turbine in the middle of its enclosure.

Le rotor 1 tourne autour du même axe vertical que l'enceinte 2 qui s'oriente face au vent par l'intermédiaire de la girouette 3.  The rotor 1 rotates around the same vertical axis as the enclosure 2 which is oriented facing the wind through the wind vane 3.

Les aubes sont subdivisées en deux parties (al) et (a2) légèrement décalées pour laisser passer un peu d'air de poussée. Elles sont sensiblement éloignées du 15 centre de rotation afin qu'il se crée une dépression entre l'axe de rotation et la partie interne de l'aube.  The blades are subdivided into two parts (al) and (a2) slightly offset to allow a little pushing air to pass. They are substantially distant from the center of rotation so that a vacuum is created between the axis of rotation and the internal part of the blade.

L'enveloppe immédiate du rotor est ouverte sensiblement sur un quart de sa circonférence pour que l'air provenant de l'ouverture (ol), accéléré par ailleurs par 20 un effet de venturi, pousse les aubes perpendiculairement. L'enveloppe est aussi ouverte par endroits à la hauteur de chaque déflecteur (d) pour laisser passer une partie de l'air provenant de (o2).  The immediate envelope of the rotor is opened substantially over a quarter of its circumference so that the air coming from the opening (ol), further accelerated by a venturi effect, pushes the blades perpendicularly. The envelope is also open in places at the height of each deflector (d) to let part of the air coming from (o2) pass.

La figure 2 montre schématiquement le dessin hélicdoïdal des aubes (a) et les pans inclinés (p) de 15 par rapport à l'horizontale qui obligent l'air provenant de (o1) à pousser les aubes perpendiculairement.  FIG. 2 schematically shows the helical design of the blades (a) and the inclined faces (p) of 15 with respect to the horizontal which force the air coming from (o1) to push the blades perpendicularly.

L'air poussant les aubes effectue une montée progressive en tournant de 180 pour ressortir, sous le vent, au-dessus de l'éolienne o il subit alors un effet de 30 succion qui travaille en synergie avec l'effet de poussée. La sortie de l'air est forcée sous le vent par un pan incliné qui ferme la moitié du dessus du rotor.  The air pushing the blades progressively increases by turning 180 to exit, downwind, above the wind turbine where it undergoes a suction effect which works in synergy with the push effect. The air outlet is forced downwind by an inclined panel which closes half of the top of the rotor.

Le mouvement tournant de l'air, emprisonné par l'enveloppe immédiate du rotor, engendre une dépression centrale qui concourt à la dynamique de 35 l'ensemble.  The rotating movement of the air, trapped by the immediate envelope of the rotor, generates a central depression which contributes to the dynamics of the whole.

Il est à noter que ce dispositif peut être transplanté sur un bateau o il devient alors un mode de propulsion pourvu qu'il soit relié à une hélice marine par l'intermédiaire de pignons de renvoi.  It should be noted that this device can be transplanted onto a boat where it then becomes a mode of propulsion provided that it is connected to a marine propeller by means of return gears.

Claims (8)

REVENDICATIONS 1- Eolienne à axe vertical et aubes de poussée, caractérisée en ce que sa rotation à l'intérieur d'une enceinte de forme globale sensiblement demicylindrique, 10 génère une dépression centrale optimisant son mouvement.  1- Wind turbine with vertical axis and thrust vanes, characterized in that its rotation inside an enclosure of generally semi-cylindrical overall shape, 10 generates a central depression optimizing its movement. 2- Eolienne selon la revendication 1, caractérisée en ce que les aubes de poussée, d'un nombre variable, s'étendent de façon hélicdoïdale avec un pas de 75 et décrivent un angle de rotation de 180 entre la base et le sommet. 15 3- Eolienne selon la revendication 1, caractérisée en ce que le rotor, enfermé dans une enceinte auto-orientable par effet girouette, présente deux entrées d'air symétriques en forme de venturi, de part et d'autre du rotor.  2- Wind turbine according to claim 1, characterized in that the thrust vanes, of a variable number, extend in a helical fashion with a pitch of 75 and describe a rotation angle of 180 between the base and the top. 15 3- Wind turbine according to claim 1, characterized in that the rotor, enclosed in a self-rotating enclosure by weather vane effect, has two symmetrical air inlets in the form of a venturi, on either side of the rotor. 4- Eolienne selon la revendication 3, caractérisée en ce que l'entrée d'air conduisant directement sur les aubes du rotor est subdivisée par plusieurs pans transversaux inclinés de 15 par rapport à l'horizontale.  4- Wind turbine according to claim 3, characterized in that the air inlet leading directly to the blades of the rotor is subdivided by several transverse sides inclined by 15 relative to the horizontal. 5- Eolienne selon la revendication 3, caractérisée en ce que l'autre entrée d'air 25 n'est pas subdivisée et contourne le rotor pour amener l'air sur la bonne face des aubes.  5- Wind turbine according to claim 3, characterized in that the other air inlet 25 is not subdivided and bypasses the rotor to bring the air to the correct face of the blades. 6- Eolienne selon la revendication 6, caractérisée en ce que l'air provenant de cette entrée est distribué consécutivement au rotor par l'intermédiaire de plusieurs 30 déflecteurs le long des 3/4 sensiblement, de la périphérie du rotor, à la manière d'une turbine hydraulique <" Pelton ".  6- Wind turbine according to claim 6, characterized in that the air coming from this inlet is distributed consecutively to the rotor by means of several deflectors along 3/4 substantially, from the periphery of the rotor, in the same way as 'a hydro turbine <"Pelton". 7- Eolienne selon la revendication 3, caractérisée en ce que le toit de l'enceinte, au-dessus du rotor, est ouvert à moitié, dans sa partie " sous le vent >>, pour 35 laisser sortir l'air.  7- Wind turbine according to claim 3, characterized in that the enclosure roof, above the rotor, is half open, in its "leeward" part, to let the air out. 8- Eolienne selon la revendication 7, caractérisée en ce que la partie couverte du toit de l'enceinte, au-dessus du rotor, constitue un plan sensiblement incliné provoquant ainsi une dépression optimisant la sortie de l'air en aval.  8- Wind turbine according to claim 7, characterized in that the covered part of the roof of the enclosure, above the rotor, constitutes a substantially inclined plane thus causing a vacuum optimizing the outlet of the air downstream. 9- Eolienne selon toutes les revendications, caractérisée en ce que le dispositif, transplanté sur un bateau, constitue un moyen de propulsion en étant relié à une hélice marine par pignons.  9- Wind turbine according to all claims, characterized in that the device, transplanted onto a boat, constitutes a means of propulsion by being connected to a marine propeller by pinions.
FR0305767A 2003-05-14 2003-05-14 Cyclonic windmill has vertical axis and power blades and rotates inside semi-cylindrical enclosure generating central depression optimizing movement Withdrawn FR2854931A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11746745B2 (en) * 2021-07-23 2023-09-05 Neville Patel Sidewall wind turbine system with plurality of wind directors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11746745B2 (en) * 2021-07-23 2023-09-05 Neville Patel Sidewall wind turbine system with plurality of wind directors

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