[go: up one dir, main page]

WO2004022969A1 - Wind wheel - Google Patents

Wind wheel Download PDF

Info

Publication number
WO2004022969A1
WO2004022969A1 PCT/IB2003/003316 IB0303316W WO2004022969A1 WO 2004022969 A1 WO2004022969 A1 WO 2004022969A1 IB 0303316 W IB0303316 W IB 0303316W WO 2004022969 A1 WO2004022969 A1 WO 2004022969A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind
wind turbine
corner
tubes
overlap
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.)
Ceased
Application number
PCT/IB2003/003316
Other languages
German (de)
French (fr)
Inventor
Bertram Steinheuer
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 AU2003247119A priority Critical patent/AU2003247119A1/en
Publication of WO2004022969A1 publication Critical patent/WO2004022969A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a wind turbine for wind power plants and a wind direction bearing for wind power plants according to the preamble of the independent claims.
  • Devices for generating electricity from wind are used to generate electrical energy in an environmentally sustainable manner. Another area of application is the generation of electrical energy in remote locations where connection to a power grid is difficult or impossible.
  • the devices have a wind wheel or a propeller and are rotatably mounted, so that an alignment according to the wind direction is possible.
  • the wind turbine In most devices for generating electricity from wind, the wind turbine is designed as a propeller, as is known from aircraft. Wind turbines with sails are known from the 13th century. They were or are mainly used for pumps and mills. Devices for generating electricity from
  • Wind must be aligned according to the respective wind direction.
  • the historical wind turbines with sails have the disadvantage that their efficiency and stability are imperfect.
  • Conventional wind turbines designed as propellers for wind turbines are complex to manufacture.
  • Known wind direction bearings for power generators have the disadvantage that they can withstand high wind speeds only with a very complex construction.
  • the passive alignment is often imperfect at low wind speeds because the bearings are stiff.
  • the object is therefore to provide a wind turbine of the type mentioned at the outset which at least partially avoids the disadvantages mentioned above.
  • wind turbine has two coaxial rings.
  • the wind turbine is stable and easy to manufacture.
  • the wind direction bearing has two coaxially arranged tubes which can be rotated relative to one another and overlap and at least two ball bearings are provided in the region of the overlap.
  • the wind direction bearing is stable and therefore suitable for high wind speeds.
  • sail in this document generally describes an element that is used to convert a
  • Wind power is used in another mechanical force, and therefore includes not only classic fabric sails, but also such sails, which are designed as fixed or inflexible elements. Flexible, non-self-supporting elements are preferred.
  • FIG. 2 shows a preferred embodiment of the wind wheel according to the invention for wind power plants.
  • Fig. 1 shows a preferred embodiment of the wind power plant according to the invention.
  • a current generator 1 or dynamo is driven by the wind wheel 3, 4, 5 via the shaft 6.
  • the wind wheel 3, 4, 5 has two coaxial rings 3, 4 and a plurality of essentially triangular sails 5.
  • An alignment sail 2, or a flag ensures that the part of the wind turbine that can be rotated about a vertical axis, ie, among other things, wind turbine 3, 4, 5, generator 1 and alignment sail 2, each passively, ie without an active actuator, in accordance with the Aligns wind direction.
  • the current generator 1 is rotatably mounted with a wind direction bearing 7, 8, 9, 10.
  • the wind direction bearing 7, 8, 9, 10 is shown as a section and disproportionately large to clarify the mode of operation.
  • the wind direction bearing 7, 8, 9, 10 has two coaxial tubes 7, 8, namely an outer tube 7, which is connected to the base or foundation of the wind turbine, and an inner tube 8, which is connected to the generator 1. Coaxial means that the axes of the tubes 7, 8 lie on the same straight line.
  • the two tubes 7, 8 are rotatable relative to each other.
  • the two pipes 7, 8 overlap.
  • at least a first, upper ball bearing 9 and a second, lower ball bearing 10 are provided between the two tubes 7, 8.
  • the first ball bearing 9 is in the area of the upper end of the overlap of the two tubes
  • the second ball bearing 10 is arranged in the region of the lower end of the overlap of the two tubes 7, 8.
  • the first tube 7 and the second tube 8 are not significantly longer than the area of overlap of the two tubes 7,
  • the two ball bearings 9, 10 are preferably angular bearings. However, they can also be designed as a groove bearing.
  • the wind direction bearing allows a 360 s rotation.
  • the wind direction bearing is preferably long enough that it also serves as a mast and no further components are provided between generator 1 and the base or foundation of the installation.
  • the lower end of the bearing is anchored in the floor and the generator 1 or the wind turbine 3, 4, 5, 6 is attached to the upper end.
  • the bearing is designed such that the overlap of the two tubes 7, 8 essentially extends from the foot to the upper end.
  • the outer tube 7 is longer than the inner tube 8, so that the overlap of the tubes 7, 8 is limited to the upper region of the mast, for example the upper third.
  • the length of the mast of wind turbines is designed very differently depending on the wind turbine properties, generator properties and environmental conditions. A length of 5 to 10 m is mentioned here as an example.
  • Fig. 2 shows a preferred embodiment of the wind turbine according to the invention for wind turbines.
  • the wind turbine has a plurality of sails 5 and a device 3, 4, 11, 12 to which the sails 5 are fastened and in particular stretched.
  • the device 3, 4, 11, 12 comprises two coaxial rings 3, 4. Coaxial means that the axes of the rings lie on the same straight line, which coincides with the shaft 6 in the present case.
  • the radius of the two rings 3, 4 is essentially the same.
  • the rings 3, 4 form the outer frame of the wind turbine and therefore preferably have a radius which is larger than the corresponding dimension of the individual sails 5. However, in order to ensure good stability, the radius of the rings should be at least half as large as the radius of the wind turbine.
  • the radius of the wind turbine is the distance from the outermost point of the wind turbine to the axis of the wind turbine.
  • the rings 3, 4 are connected to a shaft 6 via radial struts 11.
  • the rings 3, 4 are connected to one another with intermediate ring struts 12 in particular.
  • These intermediate ring struts 12 can in particular be designed as axial struts which run parallel to the axis of rotation of the wind turbine.
  • the sails 5 are essentially triangular. Only one of the six sails 5 is shown.
  • the wind turbine preferably has between three and twelve sails 5.
  • the sails 5 are each fastened with a first corner to the first ring 3, with a second corner to the second ring 4 and with a third corner to the shaft 6.
  • the sails 5 are stretched between three points.
  • the two outer corners of the sails 5 can also both be attached to the same ring 3 or 4.
  • the inclination of the sails 5 with respect to the wind is achieved by varying the tension of the sails 5 between the fastening points.
  • at least one of the outer corners of the sails 5 is attached to an intermediate ring strut 12.
  • the device 3, 4, 11, 12, to which the sails 5 are attached is preferably made of a stable and, in particular, light material. It can be made of wood, metal, in particular aluminum or carbon fibers, among other things, or at least have these materials. While preferred embodiments of the invention are described in the present application, it should be clearly pointed out that the invention is not based on this is limited and can be carried out in other ways within the scope of the following claims.

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)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The invention relates to a device for producing electric power by means of wind. The inventive device comprises a wind wheel (3, 4, 5), a generator (1) and an orientation sailwing (2). Said wind wheel is embodied in the form of two rings (3,4) and many sailwings (5) fixed thereto. The generator (1), the wind wheel (3, 4, 5) and sailwing (2) are arranged in such a way that they are rotatable with the aid of two coaxial tubes (7, 8), each tube being connected to a rolling bearing (9, 10) at the level of the overlap zone thereof. Said device has a good performance and stability.

Description

WINDRAD WINDMILL

Hinweis auf verwandte AnmeldungenReference to related applications

Diese Anmeldung beansprucht die Priorität der Schweizer Patentanmeldung 1506/02, die am 4. September 2002 eingereicht wurde und deren ganze Offenbarung hier- mit durch Bezug aufgenommen wird.This application claims priority from Swiss patent application 1506/02, which was filed on September 4, 2002, the entire disclosure of which is hereby incorporated by reference.

Hintergrundbackground

Die Erfindung betrifft ein Windrad für Wind- kraftanlagen und ein Windrichtungslager für Windkraftanlagen gemäss Oberbegriff der unabhängigen Ansprüche.The invention relates to a wind turbine for wind power plants and a wind direction bearing for wind power plants according to the preamble of the independent claims.

Vorrichtungen zur Gewinnung von Strom aus Wind werden verwendet um auf ökologisch nachhaltige Weise elektrische Energie zu erzeugen. Ein weiterer Anwendungs- bereich liegt in der Erzeugung von elektrischer Energie an abgelegenen Orten, bei denen ein Anschluss an ein Stromnetz nicht oder nur schwer möglich ist. Die Vorrichtungen weisen ein Windrad bzw. einen Propeller auf und sind drehbar gelagert, so dass eine Ausrichtung entspre- chend der Windrichtung möglich ist.Devices for generating electricity from wind are used to generate electrical energy in an environmentally sustainable manner. Another area of application is the generation of electrical energy in remote locations where connection to a power grid is difficult or impossible. The devices have a wind wheel or a propeller and are rotatably mounted, so that an alignment according to the wind direction is possible.

Stand der TechnikState of the art

Bei den meisten Vorrichtungen zur Gewinnung von Strom aus Wind ist das Windrad als Propeller, wie von Flugzeugen her bekannt, ausgestaltet. Windräder mit Segeln sind schon aus dem 13. Jahrhundert bekannt. Sie wurden bzw. werden vor allem für Pumpen und Mühlen eingesetzt . Vorrichtungen zur Gewinnung von Strom ausIn most devices for generating electricity from wind, the wind turbine is designed as a propeller, as is known from aircraft. Wind turbines with sails are known from the 13th century. They were or are mainly used for pumps and mills. Devices for generating electricity from

Wind müssen entsprechend der jeweiligen Windrichtung ausgerichtet werden. Sie sind dazu meistens mit einem Wind- richtungslager drehbar gelagert, wobei die Ausrichtung entweder passiv, z.B. mittels eines Ausrichtungssegels, oder aktiv mit einem aktiven Stellglied, z.B. mittels eines Elektromotors, oder von Hand erfolgt. Die historischen Windräder mit Segeln haben den Nachteil, dass ihr Wirkungsgrad und ihre Stabilität unvollkommen ist. Konventionelle als Propeller ausgestaltete Windräder für Windkraftanlagen sind aufwendig in der Herstellung. Bekannte Windrichtungslager für Stromgeneratoren haben den Nachteil, dass sie nur bei sehr aufwendiger Konstruktion hohen Windstärken zu trotzen vermögen. Zudem ist die passive Ausrichtung bei geringen Windstärken oft unvollkommen, weil die Lager schwergängig sind.Wind must be aligned according to the respective wind direction. You are usually with a wind directional bearing rotatably, the alignment either passive, for example by means of an alignment sail, or active with an active actuator, for example by means of an electric motor, or by hand. The historical wind turbines with sails have the disadvantage that their efficiency and stability are imperfect. Conventional wind turbines designed as propellers for wind turbines are complex to manufacture. Known wind direction bearings for power generators have the disadvantage that they can withstand high wind speeds only with a very complex construction. In addition, the passive alignment is often imperfect at low wind speeds because the bearings are stiff.

Darstellung der ErfindungPresentation of the invention

Es stellt sich daher die Aufgabe, ein Windrad der eingangs genannten Art bereitzustellen, das die oben genannten Nachteile zumindest teilweise vermeidet.The object is therefore to provide a wind turbine of the type mentioned at the outset which at least partially avoids the disadvantages mentioned above.

Diese Aufgabe wird von Anspruch 1 gelöst, indem das Windrad zwei koaxiale Ringe aufweist. Das Windrad ist stabil und einfach herzustellen.This object is achieved by claim 1 in that the wind turbine has two coaxial rings. The wind turbine is stable and easy to manufacture.

Es stellt sich des weiteren die Aufgabe, ein Windrichtungslager der eingangs genannten Art bereitzustellen, das die oben genannten Nachteile zumindest teilweise vermeidet.There is also the task of providing a wind direction bearing of the type mentioned at the outset which at least partially avoids the disadvantages mentioned above.

Diese Aufgabe wird von Anspruch 6 gelöst, indem das Windrichtungslager zwei koaxial angeordnete, re- lativ zu einander drehbare Rohre aufweist, welche sich überlappen und im Bereich der Überlappung mindestens zwei Kugellager vorgesehen sind. Das Windrichtungslager ist stabil und damit für hohe Windstärken geeignet.This object is achieved by claim 6 in that the wind direction bearing has two coaxially arranged tubes which can be rotated relative to one another and overlap and at least two ball bearings are provided in the region of the overlap. The wind direction bearing is stable and therefore suitable for high wind speeds.

Der Begriff Segel in diesem Dokument be- schreibt generell ein Element, das zum Umwandeln einerThe term sail in this document generally describes an element that is used to convert a

Windkraft in eine andere mechanische Kraft dient, und um- fasst daher nicht nur klassische Stoffsegel, sondern auch solche Segel, welche als feste bzw. nicht flexible Elemente ausgestaltet sind. Flexible, nicht selbsttragende Elemente sind jedoch bevorzugt.Wind power is used in another mechanical force, and therefore includes not only classic fabric sails, but also such sails, which are designed as fixed or inflexible elements. Flexible, non-self-supporting elements are preferred.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Ausgestaltungen, Vorteile und Anwendungen der Erfindung ergeben sich aus den abhängigen Ansprüchen und aus der nun folgenden Beschreibung anhand der Figuren. Dabei zeigen:Further refinements, advantages and applications of the invention result from the dependent claims and from the description that follows with reference to the figures. Show:

Fig. 1 eine bevorzugte Ausführung der erfin- dungsgemässen Windkraftanlage und1 shows a preferred embodiment of the wind power plant according to the invention and

Fig. 2 eine bevorzugte Ausführung des erfin- dungsgemässen Windrades für Windkraftanlagen.2 shows a preferred embodiment of the wind wheel according to the invention for wind power plants.

Weg(e) zur Ausführung der ErfindungWay (s) of carrying out the invention

Fig. 1 zeigt eine bevorzugte Ausführung der erfindungsgemässen Windkraf anlage. Ein Stromgenerator 1 bzw. Dynamo wird über die Welle 6 vom Windrad 3, 4, 5 angetrieben. Das Windrad 3, 4, 5 weist zwei koaxiale Ringe 3, 4 und mehrere im Wesentlichen dreieckige Segel 5 auf. Ein Ausrichtungssegel 2, bzw. eine Fahne, sorgt dafür, dass sich der um eine vertikale Achse drehbare Teil der Windkraftanlage, d.h. unter anderem Windrad 3, 4, 5, Generator 1 und Ausrichtungssegel 2, jeweils passiv, d.h. ohne aktives Stellglied, entsprechend der Windrichtung ausrichtet. Der Stromgenerator 1 ist dazu drehbar mit einem Windrichtungslager 7, 8, 9, 10 gelagert. Das Wind- richtungslager 7, 8, 9, 10 ist als Schnitt und überproportional gross dargestellt um die Funktionsweise zu verdeutlichen. Das Windrichtungslager 7, 8, 9, 10 weist zwei koaxiale Rohre 7, 8 auf, nämlich ein äusseres Rohr 7, welches mit dem Fuss bzw. Fundament der Windkraftanlage verbunden ist und ein inneres Rohr 8, welches mit dem Generator 1 verbunden ist. Koaxial heisst dabei, dass die Achsen der Rohre 7, 8 auf derselben Gerade liegen. Die beiden Rohre 7, 8 sind relativ zueinander drehbar. Die beiden Rohre 7, 8 überlappen sich. Im Bereich der Überlappung sind zwischen den beiden Rohren 7, 8 mindestens ein erstes, oberes Kugellager 9 und ein zweites, unteres Kugellager 10 vorgesehen. Das erste Kugellager 9 ist im Bereich des oberen Endes der Überlappung der beiden RohreFig. 1 shows a preferred embodiment of the wind power plant according to the invention. A current generator 1 or dynamo is driven by the wind wheel 3, 4, 5 via the shaft 6. The wind wheel 3, 4, 5 has two coaxial rings 3, 4 and a plurality of essentially triangular sails 5. An alignment sail 2, or a flag, ensures that the part of the wind turbine that can be rotated about a vertical axis, ie, among other things, wind turbine 3, 4, 5, generator 1 and alignment sail 2, each passively, ie without an active actuator, in accordance with the Aligns wind direction. For this purpose, the current generator 1 is rotatably mounted with a wind direction bearing 7, 8, 9, 10. The wind direction bearing 7, 8, 9, 10 is shown as a section and disproportionately large to clarify the mode of operation. The wind direction bearing 7, 8, 9, 10 has two coaxial tubes 7, 8, namely an outer tube 7, which is connected to the base or foundation of the wind turbine, and an inner tube 8, which is connected to the generator 1. Coaxial means that the axes of the tubes 7, 8 lie on the same straight line. The two tubes 7, 8 are rotatable relative to each other. The two pipes 7, 8 overlap. In the area of the overlap, at least a first, upper ball bearing 9 and a second, lower ball bearing 10 are provided between the two tubes 7, 8. The first ball bearing 9 is in the area of the upper end of the overlap of the two tubes

7, 8 angeordnet. Das zweite Kugellager 10 ist im Bereich des unteren Endes der Überlappung der beiden Rohre 7 , 8 angeordnet. Beim gezeigten Windrichtungslager sind das erste Rohr 7 und das zweite Rohr 8 nicht wesentlich länger als der Bereich der Überlappung der beiden Rohre 7,7, 8 arranged. The second ball bearing 10 is arranged in the region of the lower end of the overlap of the two tubes 7, 8. In the wind direction bearing shown, the first tube 7 and the second tube 8 are not significantly longer than the area of overlap of the two tubes 7,

8. Die beiden Kugellager 9, 10 sind bevorzugt Schräglager. Sie können jedoch auch als Nutlager ausgestaltet werden. Das Windrichtungslager erlaubt eine 360s Drehung. Das Windrichtungslager ist bevorzugt so lang ausgestaltet, dass es zugleich als Mast dient und zwischen Generator 1 und Fuss bzw. Fundament der Anlage keine weiteren Bauteile vorgesehen sind. Das untere Ende des Lagers wird dabei im Boden verankert und am oberen Ende wird der Ge- nerator 1 bzw. das Windrad 3, 4, 5, 6 befestigt. Das Lager ist dabei so ausgestaltet, dass die Überlappung der beiden Rohre 7, 8 im Wesentlichen vom Fuss bis zum oberen Ende reicht. In einer anderen Ausführungsform ist das äu- ssere Rohr 7 länger als das innere Rohr 8 ausgestaltet, so dass sich die Überlappung der Rohre 7, 8 auf den obere Bereich des Mastes, z.B. das obere Drittel, beschränkt. Die Länge des Mastes von Windkraftanlagen wird je nach Windradeigenschaften, Generatoreigenschaften und Umweltbedingungen sehr unterschiedlich ausgestaltet. Als Bei- spiel sei hier eine Länge von 5 bis 10 m genannt.8. The two ball bearings 9, 10 are preferably angular bearings. However, they can also be designed as a groove bearing. The wind direction bearing allows a 360 s rotation. The wind direction bearing is preferably long enough that it also serves as a mast and no further components are provided between generator 1 and the base or foundation of the installation. The lower end of the bearing is anchored in the floor and the generator 1 or the wind turbine 3, 4, 5, 6 is attached to the upper end. The bearing is designed such that the overlap of the two tubes 7, 8 essentially extends from the foot to the upper end. In another embodiment, the outer tube 7 is longer than the inner tube 8, so that the overlap of the tubes 7, 8 is limited to the upper region of the mast, for example the upper third. The length of the mast of wind turbines is designed very differently depending on the wind turbine properties, generator properties and environmental conditions. A length of 5 to 10 m is mentioned here as an example.

Fig. 2 zeigt eine bevorzugte Ausführung des erfindungsgemässen Windrades für Windkraftanlagen. Das Windrad weist mehrere Segel 5 und eine Vorrichtung 3, 4, 11, 12 auf, an welcher die Segel 5 befestigt und insbe- sondere aufgespannt sind. Die Vorrichtung 3, 4, 11, 12 umfasst zwei koaxiale Ringe 3, 4. Koaxial heisst dabei, dass die Achsen der Ringe auf derselben Gerade liegen, welche im vorliegenden Fall mit der Welle 6 zusammenfällt. Der Radius der beiden Ringe 3, 4 ist im Wesentlichen gleich. Die Ringe 3, 4 bilden den äusseren Rahmen des Windrades und haben daher bevorzugt einen Radius, welcher grösser ist als die entsprechende Abmessung der einzelnen Segel 5. Um eine gute Stabilität zu gewährleisten sollte der Radius der Ringe jedoch mindestens halb so gross sein wie der Radius des Windrades. Der Radius des Windrades ist dabei der Abstand des äussersten Punk- tes des Windrades von der Achse des Windrades. Die Ringe 3, 4 sind über Radialstreben 11 mit einer Welle 6 verbunden. Die Ringe 3, 4 sind untereinander mit insbesondere Zwischenringstreben 12 verbunden. Diese Zwischenringstreben 12 können insbesondere als Axialstreben ausgestaltet sein, welche parallel zur Rotationsachse des Windrades verlaufen. Die Segel 5 sind im Wesentlichen dreieckig. Es ist nur eines der sechs Segel 5 gezeigt. Das Windrad hat bevorzugt zwischen drei und zwölf Segel 5. Die Segel 5 sind jeweils mit einer ersten Ecke am ersten Ring 3, mit einer zweiten Ecke am zweiten Ring 4 und mit einer dritten Ecke an der Welle 6 befestigt. Die Segel 5 sind so zwischen drei Punkten aufgespannt. Die beiden äusseren Ecken der Segel 5 können jedoch auch beide an demselben Ring 3 oder 4 befestigt werden. In diesem Fall wird die Schrägstellung der Segel 5 gegenüber dem Wind durch eine unterschiedlich starke Spannung des Segels 5 zwischen den Befestigungspunkten erreicht. In einer weiteren Ausführungsform wird zumindest jeweils eine der äusseren Ecken der Segel 5 an einer Zwischenringstrebe 12 befestigt. Die Vorrichtung 3, 4, 11, 12, an welcher die Segel 5 befestigt sind, ist vorzugsweise aus einem stabilen und insbesondere leichten Material . Sie kann unter anderem aus Holz, Metall, insbesondere Aluminium oder Karbonfasern sein, oder diese Materialien zumindest aufweisen. Während in der vorliegenden Anmeldung bevorzugte Ausführungen der Erfindung beschrieben sind, ist klar darauf hinzuweisen, dass die Erfindung nicht auf diese beschränkt ist und in auch anderer Weise innerhalb des Umfangs der folgenden Ansprüche ausgeführt werden kann. Fig. 2 shows a preferred embodiment of the wind turbine according to the invention for wind turbines. The wind turbine has a plurality of sails 5 and a device 3, 4, 11, 12 to which the sails 5 are fastened and in particular stretched. The device 3, 4, 11, 12 comprises two coaxial rings 3, 4. Coaxial means that the axes of the rings lie on the same straight line, which coincides with the shaft 6 in the present case. The radius of the two rings 3, 4 is essentially the same. The rings 3, 4 form the outer frame of the wind turbine and therefore preferably have a radius which is larger than the corresponding dimension of the individual sails 5. However, in order to ensure good stability, the radius of the rings should be at least half as large as the radius of the wind turbine. The radius of the wind turbine is the distance from the outermost point of the wind turbine to the axis of the wind turbine. The rings 3, 4 are connected to a shaft 6 via radial struts 11. The rings 3, 4 are connected to one another with intermediate ring struts 12 in particular. These intermediate ring struts 12 can in particular be designed as axial struts which run parallel to the axis of rotation of the wind turbine. The sails 5 are essentially triangular. Only one of the six sails 5 is shown. The wind turbine preferably has between three and twelve sails 5. The sails 5 are each fastened with a first corner to the first ring 3, with a second corner to the second ring 4 and with a third corner to the shaft 6. The sails 5 are stretched between three points. However, the two outer corners of the sails 5 can also both be attached to the same ring 3 or 4. In this case, the inclination of the sails 5 with respect to the wind is achieved by varying the tension of the sails 5 between the fastening points. In a further embodiment, at least one of the outer corners of the sails 5 is attached to an intermediate ring strut 12. The device 3, 4, 11, 12, to which the sails 5 are attached, is preferably made of a stable and, in particular, light material. It can be made of wood, metal, in particular aluminum or carbon fibers, among other things, or at least have these materials. While preferred embodiments of the invention are described in the present application, it should be clearly pointed out that the invention is not based on this is limited and can be carried out in other ways within the scope of the following claims.

Claims

Patentansprüche claims 1. Windrad für Windkraftanlagen mit einer Vorrichtung (3, 4, 11, 12), an welcher mehrere Segel (5) befestigt sind, dadurch gekennzeichnet, dass die Vorrichtung (3, 4, 11, 12) zwei koaxiale Ringe (3, 4) aufweist.1. Wind turbine for wind turbines with a device (3, 4, 11, 12) to which a plurality of sails (5) are attached, characterized in that the device (3, 4, 11, 12) has two coaxial rings (3, 4 ) having. 2. Windrad gemäss einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die zwei koaxialen Ringe (3, 4) im Wesentlichen gleiche Radien haben und/oder jeder der zwei koaxialen Ringe (3, 4) einen Radius hat, welcher mindestens so gross ist wie der halbe Radius des Windrades, insbesondere einen Radius der im Wesentlichen gleich gross ist wie der Radius des Windrades . 2. Wind turbine according to one of the preceding claims, characterized in that the two coaxial rings (3, 4) have essentially the same radii and / or each of the two coaxial rings (3, 4) has a radius which is at least as large as half the radius of the wind turbine, in particular a radius that is essentially the same size as the radius of the wind turbine. 3. Windrad gemäss einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Ringe (3, 4) über Radialstreben (11) mit einer Welle (6) verbunden sind und/oder die Ringe (3, 4) untereinander mit Zwischenringstreben (12) verbunden sind. 3. Wind turbine according to one of the preceding claims, characterized in that the rings (3, 4) are connected to a shaft (6) via radial struts (11) and / or the rings (3, 4) are connected to one another with intermediate ring struts (12) are. 4. Windrad gemäss einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Segel (5) im Wesentlichen dreieckig sind und4. Wind turbine according to one of the preceding claims, characterized in that the sails (5) are substantially triangular and - mit einer ersten Ecke am ersten Ring (3), mit einer zweiten Ecke am zweiten Ring (4) und mit einer dritten Ecke an einer Welle (6) befestigt sind oder- With a first corner on the first ring (3), with a second corner on the second ring (4) and with a third corner on a shaft (6) are attached or - mit einer ersten Ecke am ersten Ring (3), mit einer zweiten Ecke an einer Zwischenringstrebe (12) und mit einer dritten Ecke an einer Welle (6) befestigt sind oder - mit einer ersten Ecke an einer Zwischenringstrebe (12), mit einer zweiten Ecke an einer Zwischenringstrebe (12) und mit einer dritten Ecke an einer Welle (6) befestigt sind.- With a first corner on the first ring (3), with a second corner on an intermediate ring strut (12) and with a third corner on a shaft (6) or - with a first corner on an intermediate ring strut (12), with a second corner on an intermediate ring strut (12) and with a third corner on a shaft (6). 5. Windrad gemäss einem der vorangehenden An- sprüche, dadurch gekennzeichnet, dass die Segel (5) flexibel und nicht selbsttragend sind und aussen von Ringen (3, 4) und/oder Zwischenringstreben (12) gehalten sind. 5. Wind turbine according to one of the preceding claims, characterized in that the sails (5) are flexible and not self-supporting and are held on the outside by rings (3, 4) and / or intermediate ring struts (12). 6. Windrichtungslager für Windkraftanlagen, dadurch gekennzeichnet, dass es ein inneres Rohr (7) und ein äusseres Rohr (8) aufweist, wobei die beiden Rohre (7, 8) koaxial angeordnet und relativ zu einander drehbar sind und sich die beiden Rohre (7, 8) überlappen und im Bereich der Überlappung mindestens ein erstes Kugellager (9) und ein zweites Kugellager (10) vorgesehen ist.6. Wind direction bearing for wind turbines, characterized in that it has an inner tube (7) and an outer tube (8), the two tubes (7, 8) being arranged coaxially and rotatable relative to one another and the two tubes (7 , 8) overlap and at least one first ball bearing (9) and one second ball bearing (10) is provided in the region of the overlap. 7. Windrichtungslager gemäss Anspruch 6, dadurch gekennzeichnet, dass das erste Kugellager (9) im Bereich eines ersten Endes der Überlappung der beiden7. Wind direction bearing according to claim 6, characterized in that the first ball bearing (9) in the region of a first end of the overlap of the two Rohre (7, 8) angeordnet ist und/oder das zweite Kugellager (10) im Bereich eines zweiten Endes der Überlappung der beiden Rohre (7, 8) angeordnet ist.Tubes (7, 8) is arranged and / or the second ball bearing (10) is arranged in the region of a second end of the overlap of the two tubes (7, 8). 8. Windrichtungslager gemäss einem der An- sprüche 6 oder 7, dadurch gekennzeichnet, dass das innere Rohr (7) und/oder das äussere Rohr (8) nicht wesentlich länger ist als der Bereich der Überlappung der beiden Rohre (7 , 8 ) .8. Wind direction bearing according to one of claims 6 or 7, characterized in that the inner tube (7) and / or the outer tube (8) is not significantly longer than the area of overlap of the two tubes (7, 8). 9. Windrichtungslager gemäss einem der An- sprüche 6 bis 8, dadurch gekennzeichnet, dass das erste9. Wind direction bearing according to one of claims 6 to 8, characterized in that the first Kugellager (9) und/oder das zweite Kugellager (10) jeweils ein Schräglager oder ein Nutlager ist.Ball bearing (9) and / or the second ball bearing (10) is in each case an angular contact bearing or a groove bearing. 10. Windrichtungslager gemäss einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass es als Mast ausgebildet ist, mit einem im Boden zu verankernden Fuss und einem mit einem Windrad zu verbindenden oberen Ende, wobei die beiden Rohre (7, 8) insbesondere so angeordnet und ausgestaltet sind, dass sie sich im Wesentlichen vom Fuss bis zum oberen Ende überlappen. 10. Wind direction bearing according to one of claims 6 to 9, characterized in that it is designed as a mast, with a foot to be anchored in the ground and an upper end to be connected to a wind turbine, the two tubes (7, 8) being arranged in particular in this way and are designed so that they essentially overlap from the foot to the upper end. 11. Windkraftanlage mit einem Windrad gemäss einem der Ansprüche 1 bis 5 und/oder einem Windrichtungslager gemäss einem der Ansprüche 6 bis 10. 11. Wind power plant with a wind turbine according to one of claims 1 to 5 and / or a wind direction bearing according to one of claims 6 to 10.
PCT/IB2003/003316 2002-09-04 2003-07-25 Wind wheel Ceased WO2004022969A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003247119A AU2003247119A1 (en) 2002-09-04 2003-07-25 Wind wheel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1506/02 2002-09-04
CH15062002 2002-09-04

Publications (1)

Publication Number Publication Date
WO2004022969A1 true WO2004022969A1 (en) 2004-03-18

Family

ID=31954547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003316 Ceased WO2004022969A1 (en) 2002-09-04 2003-07-25 Wind wheel

Country Status (2)

Country Link
AU (1) AU2003247119A1 (en)
WO (1) WO2004022969A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006042401A1 (en) * 2004-10-18 2006-04-27 Whalepower Corporation Turbine and compressor employing tubercle leading edge rotor design
WO2014065687A3 (en) * 2012-05-10 2014-10-23 Puie Ioan Aeolian turbine with horizontal axis
DE102022128891A1 (en) 2022-11-01 2024-05-02 Siwing Gmbh Device and method for positioning a movable component in a desired position relative to a flowing fluid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1009896A (en) * 1910-09-17 1911-11-28 Charles Florence Craddick Windmill.
US1417000A (en) * 1922-03-09 1922-05-23 Vogt Henric Christian Windmill
US2015777A (en) * 1934-11-08 1935-10-01 Guy A Belding Windmill
US2633921A (en) * 1945-03-28 1953-04-07 Monney Charles Roger Wind engine
DE3126692A1 (en) * 1980-12-17 1983-02-10 Hilarius 4300 Essen Drzisga Wind turbine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1009896A (en) * 1910-09-17 1911-11-28 Charles Florence Craddick Windmill.
US1417000A (en) * 1922-03-09 1922-05-23 Vogt Henric Christian Windmill
US2015777A (en) * 1934-11-08 1935-10-01 Guy A Belding Windmill
US2633921A (en) * 1945-03-28 1953-04-07 Monney Charles Roger Wind engine
DE3126692A1 (en) * 1980-12-17 1983-02-10 Hilarius 4300 Essen Drzisga Wind turbine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006042401A1 (en) * 2004-10-18 2006-04-27 Whalepower Corporation Turbine and compressor employing tubercle leading edge rotor design
US8535008B2 (en) 2004-10-18 2013-09-17 Whale-Power Corporation Turbine and compressor employing tubercle leading edge rotor design
WO2014065687A3 (en) * 2012-05-10 2014-10-23 Puie Ioan Aeolian turbine with horizontal axis
DE102022128891A1 (en) 2022-11-01 2024-05-02 Siwing Gmbh Device and method for positioning a movable component in a desired position relative to a flowing fluid
WO2024094764A1 (en) 2022-11-01 2024-05-10 Siwing Gmbh Device and method for positioning a movable component in a target position relative to a flowing fluid

Also Published As

Publication number Publication date
AU2003247119A1 (en) 2004-03-29

Similar Documents

Publication Publication Date Title
EP3092357B1 (en) Arrangement with a concrete foundation and a tower and method for erecting a tower
DE102012106772A1 (en) Modular tower of a wind turbine
DE102007010561A1 (en) Wind turbine with additional end wing bearing
EP1183443B1 (en) Reinforcement ring for the tower of a wind energy facility
EP3491239A1 (en) Connecting element for connecting tower portions, tower portion, tower, wind turbine, and method for producing a tower portion and for connecting tower portions
EP3807525A1 (en) Wind turbine with vertical axis of rotation of the rotor and floating wind farm comprising a plurality of such wind turbines
DE742242C (en) Electric wind power plant
DE102019103984A1 (en) Wind turbine components for a wind turbine tower and method
DE202022002821U1 (en) Rotor for a wind turbine
WO2004022969A1 (en) Wind wheel
DE102020204945A1 (en) Wind turbine and use of the wind turbine
EP0334241A1 (en) Wind energy conversion plant
WO2021121953A1 (en) Method for erecting a wind power plant
EP0336268B1 (en) Windpowerplant
DE102005012817A1 (en) Mast construction for towers has corner shafts with separation joints that form different angles for tower with four and eight corner shafts
DE102005023120B3 (en) Two stage wind power plant to produce electricity has second annular carrier element of second wind power unit of diameter not less than that of first one
AT412808B (en) Pylon
DE102017112384A1 (en) Vertical wind turbine
DE102005017162A1 (en) Flange link between upright frame and tub superstructure is fabricated from cast metal
WO2020221860A1 (en) Rotor for a wind turbine and wind turbine
DE102019218687A1 (en) Transition piece for a tower of a wind turbine and tower of a wind turbine
EP4118330B1 (en) Method for erecting a wind power plant
WO2020074484A1 (en) Wind turbine having a drivetrain
DE202012100446U1 (en) Steel tower for wind turbines
DE202012100448U1 (en) Steel tower for wind turbines

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP