WO2013104382A1 - Wind energy converter - Google Patents

Wind energy converter Download PDF

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Publication number
WO2013104382A1
WO2013104382A1 PCT/EP2012/004789 EP2012004789W WO2013104382A1 WO 2013104382 A1 WO2013104382 A1 WO 2013104382A1 EP 2012004789 W EP2012004789 W EP 2012004789W WO 2013104382 A1 WO2013104382 A1 WO 2013104382A1
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WO
WIPO (PCT)
Prior art keywords
rotor
rotors
energy converter
wind energy
wind
Prior art date
Application number
PCT/EP2012/004789
Other languages
German (de)
French (fr)
Inventor
Mirko DON
Original Assignee
Don Mirko
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 Don Mirko filed Critical Don Mirko
Publication of WO2013104382A1 publication Critical patent/WO2013104382A1/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 
    • F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having a plurality of rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/10—Motor-propelled water sports boards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • 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
    • 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
    • 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
    • F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • 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
    • F05B2240/10—Stators
    • F05B2240/12—Fluid guiding means, e.g. vanes
    • 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
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/213—Rotors for wind turbines with vertical axis of the Savonius type
    • 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
    • F05B2240/301—Cross-section characteristics
    • 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
    • F05B2240/40—Use of a multiplicity of similar components
    • 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
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • 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

Definitions

  • the wind energy converter The wind energy converter
  • the invention relates to a wind energy converter with several, in a row parallel juxtaposed Savonius rotors, each having two schaufeiförmige, overlapping wings, which are fixed along the rotor axis of rotation and between them a central
  • Wind belasskanal form wherein the rotor axes of rotation are connected to each other via gears such that each second rotor rotates in the same direction and the rotors arranged therebetween rotate in the opposite direction.
  • Such wind energy converters are known from DE 20 2010 001 017 U1 and JP 2006009517 A. These known Savonius wind energy converters do not have sufficiently high efficiency.
  • the object of the invention is to improve a wind energy converter of the type mentioned so that it has a high energy yield at all wind speeds.
  • This object is achieved in that the vertical axis of rotation to the wing movement space of the rotor, which is traversed by the two wings of the rotor, the wing-moving space of the adjacent rotor penetrates to a part, and that in the transverse position of a rotor in the two blades of the rotor are substantially along the alignment of the row of rotors, the outer ends of the blades of the rotor to the transverse standing wings of the adjacent rotors are so close that the wings of all rotors form a closed row, in particular wall, in which the air flows substantially only through the wind passage channels.
  • Such a wind energy converter provides at all wind speeds a very high energy yield and this with a simple design and manufacture and a long service life.
  • the wings of the interposed rotors are transverse to the alignment of the row of rotors. Also, in this case, the concave inner surfaces of both wings of a rotor, which face each other, form between them
  • each wing has an inwardly directed thickening at the end closer to the rotor axis of rotation.
  • the thickening at its inner end form an edge projecting into the flow channel, at which the air flow accumulates.
  • V-shaped Windleitprofile are arranged in the wind direction in front of the row of rotors, each covering the wing-penetration space of two rotors, in which the outer wing ends move against the wind direction.
  • the wings of the rotors are each secured between two end plates.
  • Double timing belt or a chain is running.
  • the inherent stability of the rotors is increased when the two blades of a rotor are secured together by at least one bridging member bridging the wind passageway. This can be any bridging part
  • the wind energy converter is always optimally to the wind direction, it is proposed that it is mounted on a vertical axis of rotation.
  • Fig. 6 is a bottom view A-A of the wind energy converter
  • the wind energy converter has a plurality of vertical, closely juxtaposed Savonius rotors 1, each having two vertical and mutually parallel wings 2, which rotate about an axis of rotation 3 and are fixed between two end plates, not shown.
  • Above the upper or lower end disk is on the shaft 4 in all rotors one Gear 5 coaxially mounted, which may also be a sprocket and over which a double toothed belt 6 extends, which alternately extends between the gears and is moved by a drive 7, wherein additionally a
  • Chain tension set or a toothed belt tensioning set 8 with a toothed belt guide 6a and a toothed belt tensioning element 6b is provided.
  • this revolving belt or this revolving chain 6 the rotors are alternately moved in one and in the opposite direction of rotation.
  • the gears may have such a large diameter that they mesh with each other.
  • each Savonius rotor 1 The two wings 2 of each Savonius rotor 1 are facing each other with their concave inner sides and offset from each other, wherein centrally between the two wings 2, the axis of rotation 3 extends and form the wings with their inner surfaces a central wind passage 9.
  • the inner surface 10 of each blade 2 has an inwardly directed thickening 1 at the end of the rotor 3 closer to the rotor, which forms at its inner end an edge 2 projecting in the passage 9, at which the air flow accumulates, whereby the wind pressure in rotation more efficient is implemented.
  • the rotors 1 are thus extremely close to each other or side by side
  • the rotational position shown in Figure 2 shows the moment at which the blades of each second rotor are substantially along the alignment of the row of rotors and the blades of the interposed rotors are transverse to the orientation of the row of rotors.
  • the Windleitprofile are preferably V-shaped, wherein the interior of the profile faces the rotors.
  • Adjacent rotors 1 thus always rotate in opposite directions and always at the same rotational speed by the same angle of rotation.
  • the axes of rotation 3 of the rotors 1 to each other in such a small
  • each rotor 1 is secured together by at least one air-permeable bridging member 17 which bridges the wind passage 9 and stabilizes the wings.
  • Bridging 17 is a flat part in particular a sheet with
  • Air flow through the channel 9 is not or hardly hinder.
  • the bridging part (s) 17 Located here the bridging part (s) 17 preferably at both ends of the channel 9 or centrally between both channel ends at the level of the axis of rotation. 3
  • the entire wind energy converter can be immovably fixed.
  • the converter is mounted in particular with its underside on a central vertical axis of rotation about which the converter is rotatable in order to set itself at right angles to the wind direction by a drive device, not shown, automatically.
  • the drive device is controlled by a device which detects the respective current wind direction.

Abstract

The invention relates to a wind energy converter with several Savonius rotors arranged in a row parallel to one another, each having two shovel-shaped overlapping blades which are fastened along the rotational axis of the rotor and form a central wind passage channel between one another. The rotational axes of the rotors are connected to one another via gear units in such a manner that every second rotor turns in the same direction and the rotors arranged therebetween turn in the opposite direction. The blade movement space of the rotor perpendicular to the rotational axis, which is passed through by the two blades of the rotor, partially penetrates the blade movement space of the adjacent rotor, and in the cross position of a rotor in which the two blades of the rotor are situated substantially along the direction of the row of rotors, the outer ends of the rotor blades are sufficiently close to the blades of the adjacent rotors perpendicular thereto that the blades of all the rotors form a closed row, more particularly a wall, wherein the air substantially flows only through the wind passage channels.

Description

Windenergiekonverter  The wind energy converter
Die Erfindung betrifft einen Windenergiekonverter mit mehreren, in einer Reihe parallel nebeneinander angeordneten Savonius-Rotoren, die jeweils zwei schaufeiförmige, einander überlappende Flügel aufweisen, die entlang der Rotordrehachse befestigt sind und zwischen sich einen zentralen The invention relates to a wind energy converter with several, in a row parallel juxtaposed Savonius rotors, each having two schaufeiförmige, overlapping wings, which are fixed along the rotor axis of rotation and between them a central
Winddurchlasskanal bilden, wobei die Rotordrehachsen über Getriebe derart miteinander verbunden sind, dass jeder zweite Rotor sich in derselben Richtung dreht und die dazwischen angeordneten Rotoren sich in entgegengesetzter Richtung drehen. Winddurchlasskanal form, wherein the rotor axes of rotation are connected to each other via gears such that each second rotor rotates in the same direction and the rotors arranged therebetween rotate in the opposite direction.
Solche Windenergiekonverter sind aus der DE 20 2010 001 017 U1 und der JP 2006009517 A bekannt. Diese bekannten Savonius-Windenergiekonverter haben keinen ausreichend hohen Wirkungsgrad. Such wind energy converters are known from DE 20 2010 001 017 U1 and JP 2006009517 A. These known Savonius wind energy converters do not have sufficiently high efficiency.
Aufgabe der Erfindung ist es, einen Windenergiekonverter der eingangs genannten Art so zu verbessern, dass er eine hohe Energieausbeute besitzt bei allen Windgeschwindigkeiten. The object of the invention is to improve a wind energy converter of the type mentioned so that it has a high energy yield at all wind speeds.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der zur Drehachse senkrechte Flügel-Bewegungsraum des Rotors, der von den zwei Flügeln des Rotors durchlaufen wird, den Flügel-Bewegungsraum des benachbarten Rotors zu einem Teil durchdringt, und dass in der Querstellung eines Rotors bei der die zwei Flügel des Rotors im Wesentlichen längs der Ausrichtung der Reihe der Rotoren stehen, die äußeren Enden der Flügel des Rotors den dazu quer stehenden Flügeln der benachbarten Rotoren derart nahe sind, dass die Flügel aller Rotoren eine geschlossene Reihe insbesondere Wand bilden, bei der die Luft im Wesentlichen nur noch durch die Winddurchlasskanäle strömt. This object is achieved in that the vertical axis of rotation to the wing movement space of the rotor, which is traversed by the two wings of the rotor, the wing-moving space of the adjacent rotor penetrates to a part, and that in the transverse position of a rotor in the two blades of the rotor are substantially along the alignment of the row of rotors, the outer ends of the blades of the rotor to the transverse standing wings of the adjacent rotors are so close that the wings of all rotors form a closed row, in particular wall, in which the air flows substantially only through the wind passage channels.
Ein solcher Windenergiekonverter erbringt bei allen Windgeschwindigkeiten eine sehr hohe Energieausbeute und dies bei einfacher Konstruktion und Herstellung und hoher Lebensdauer. Such a wind energy converter provides at all wind speeds a very high energy yield and this with a simple design and manufacture and a long service life.
Hierbei ist von Vorteil, dass in der Drehstellung, bei der die Flügel jedes zweiten Rotors im Wesentlichen längs der Ausrichtung der Reihe der Rotoren stehen, die Flügel der dazwischen angeordneten Rotoren quer zur Ausrichtung der Reihe der Rotoren stehen. Auch bilden hierbei die konkaven Innenflächen beider Flügel eines Rotors, die einander zugewandt sind, zwischen sich den It is advantageous that in the rotational position in which the wings of each second rotor are substantially along the alignment of the row of rotors, the wings of the interposed rotors are transverse to the alignment of the row of rotors. Also, in this case, the concave inner surfaces of both wings of a rotor, which face each other, form between them
Winddurchlasskanal. Wind passageway.
Der Wirkungsgrad wird noch dadurch verbessert, wenn die Innenfläche jedes Flügels an dem der Rotordrehachse näheren Flügelende eine nach innen gerichtete Verdickung aufweist. Hierbei kann die Verdickung an ihrem inneren Ende eine in den Durchflusskanal hineinragende Kante bilden, an der sich die Luftströmung anstaut. The efficiency is further improved if the inner surface of each wing has an inwardly directed thickening at the end closer to the rotor axis of rotation. Here, the thickening at its inner end form an edge projecting into the flow channel, at which the air flow accumulates.
Der Wirkungsgrad wird noch dadurch verbessert, wenn in Windrichtung vor der Reihe von Rotoren insbesondere V-förmige Windleitprofile angeordnet sind, die jeweils den Flügel-Durchdringungsraum zweier Rotoren überdeckt, bei dem die äußeren Flügelenden sich entgegen der Windrichtung bewegen. The efficiency is further improved if in particular V-shaped Windleitprofile are arranged in the wind direction in front of the row of rotors, each covering the wing-penetration space of two rotors, in which the outer wing ends move against the wind direction.
Vorzugsweise wird vorgeschlagen, dass die Flügel der Rotoren jeweils zwischen zwei Endscheiben befestigt sind. It is preferably proposed that the wings of the rotors are each secured between two end plates.
Ein hoher Wirkungsgrad bei großer Funktionssicherheit ist dann gegeben, wenn das alle Rotoren miteinander verbindende Getriebe auf den Rotorenwellen befestigte Zahnräder aufweist, die miteinander kämmen oder über die ein A high efficiency with high reliability is given when the rotors interconnecting gear on the rotor shafts mounted gears that mesh or on the one
Doppel-Zahnriemen oder eine Kette läuft. Die Eigenstabilität der Rotoren wird erhöht, wenn die beiden Flügel eines Rotors durch mindestens ein Überbrückungsteil aneinander befestigt sind, das den Winddurchlasskanal überbrückt. Hierbei kann jedes Überbrückungsteil Double timing belt or a chain is running. The inherent stability of the rotors is increased when the two blades of a rotor are secured together by at least one bridging member bridging the wind passageway. This can be any bridging part
Luftdurchlassbereiche insbesondere Luftdurchlassöffnungen aufweisen. Have air passage areas in particular air passage openings.
Damit der Windenergiekonverter stets optimal zur Windrichtung steht, wird vorgeschlagen, dass er auf einer senkrechten Drehachse montiert ist. So that the wind energy converter is always optimally to the wind direction, it is proposed that it is mounted on a vertical axis of rotation.
Ein Ausführungsbeispiel ist in den Zeichnungen schematisch in Schnitten senkrecht zu den Rotorendrehachsen dargestellt und wird im Folgenden näher beschrieben. Es zeigen An embodiment is shown schematically in the drawings in sections perpendicular to the rotor axes of rotation and will be described in more detail below. Show it
Fig. 1 fünf Savonius-Rotoren in einer ersten Drehstellung, 1 five Savonius rotors in a first rotational position,
Fig. 2 die Rotoren in einer darauf folgenden Drehstellung, bei der die Flügel aller Rotoren eine geschlossene Reihe bilden, bei der die Luft im Wesentlichen nur noch durch die Winddurchlasskanäle strömen kann (abgedichtete Reihe mit Vollwirkung), 2 shows the rotors in a subsequent rotational position, in which the wings of all rotors form a closed row, in which the air can flow substantially only through the wind passage channels (sealed row with full effect),
Fig. 3 die darauf folgende Drehstellung der Rotoren, 3, the subsequent rotational position of the rotors,
Fig. 4 eine Ansicht des Getriebes, 4 is a view of the transmission,
Fig. 5 eine Seitenansicht des Windenergiekonverters, 5 is a side view of the wind energy converter,
Fig. 6 eine Unteransicht A-A des Windenergiekonverters und Fig. 6 is a bottom view A-A of the wind energy converter and
Fig. 7 einen waagerechten Schnitt nach B-B in Fig. 5. 7 is a horizontal section B-B in Fig. 5th
Der Windenergiekonverter weist mehrere senkrechte, eng nebeneinander stehende Savonius-Rotoren 1 auf, die jeweils zwei senkrechte und parallel zueinander angeordnete Flügel 2 besitzen, die sich um eine Drehachse 3 drehen und zwischen zwei nicht dargestellte Endscheiben befestigt sind. Über der oberen oder unteren Endscheibe ist auf der Welle 4 bei allen Rotoren jeweils ein Zahnrad 5 koaxial befestigt, das auch ein Kettenrad sein kann und über das ein Doppelzahnriemen 6 verläuft, das abwechselnd zwischen den Zahnrädern verläuft und durch einen Antrieb 7 bewegt wird, wobei zusätzlich ein The wind energy converter has a plurality of vertical, closely juxtaposed Savonius rotors 1, each having two vertical and mutually parallel wings 2, which rotate about an axis of rotation 3 and are fixed between two end plates, not shown. Above the upper or lower end disk is on the shaft 4 in all rotors one Gear 5 coaxially mounted, which may also be a sprocket and over which a double toothed belt 6 extends, which alternately extends between the gears and is moved by a drive 7, wherein additionally a
Kettenspannsatz bzw. ein Zahnriemenspannsatz 8 mit einer Zahnriemen- Führung 6a und einem Zahnriemen-Spannelement 6b vorgesehen ist. Durch diesen umlaufenden Riemen bzw. diese umlaufende Kette 6 werden die Rotoren abwechselnd in der einen und in der entgegengesetzten Drehrichtung bewegt. Alternativ können die Zahnräder einen solch großen Durchmesser besitzen, dass sie miteinander kämmen. Chain tension set or a toothed belt tensioning set 8 with a toothed belt guide 6a and a toothed belt tensioning element 6b is provided. By this revolving belt or this revolving chain 6, the rotors are alternately moved in one and in the opposite direction of rotation. Alternatively, the gears may have such a large diameter that they mesh with each other.
Die beiden Flügel 2 jedes Savonius-Rotors 1 sind mit ihren konkaven Innenseiten einander zugewandt und zueinander versetzt angeordnet, wobei mittig zwischen beiden Flügeln 2 die Drehachse 3 verläuft und die Flügel mit ihren Innenflächen einen zentralen Winddurchlasskanal 9 bilden. Die Innenfläche 10 jedes Flügels 2 weist an dem der Rotordrehachse 3 näheren Flügelende eine nach innen gerichtete Verdickung 1 auf, die an ihrem inneren Ende eine im Durchlasskanal 9 hineinragende Kante 2 bildet, an der sich die Luftströmung anstaut, wodurch der Winddruck noch effizienter in Drehung umgesetzt wird. The two wings 2 of each Savonius rotor 1 are facing each other with their concave inner sides and offset from each other, wherein centrally between the two wings 2, the axis of rotation 3 extends and form the wings with their inner surfaces a central wind passage 9. The inner surface 10 of each blade 2 has an inwardly directed thickening 1 at the end of the rotor 3 closer to the rotor, which forms at its inner end an edge 2 projecting in the passage 9, at which the air flow accumulates, whereby the wind pressure in rotation more efficient is implemented.
Die beiden Flügel 2 jedes Rotors 1 bewegen sich während der Drehung des Rotors 1 innerhalb eines Flügel-Bewegungsraums 13. In Fig. 2 ist dieser The two wings 2 of each rotor 1 move during the rotation of the rotor 1 within a wing movement space 13. In Fig. 2 this is
Bewegungsraum 13 mit seinem Rand 14 als Flügel-Bewegungsfläche bei drei Rotoren 1 dargestellt. Hierbei wird deutlich, dass die Bewegungsräume 13 zweier benachbarter Rotoren 1 einander überdecken bzw. durchdringen, so dass Flügel- Durchdringungsräume 16 bestehen. Movement space 13 shown with its edge 14 as a wing-moving surface in three rotors 1. It becomes clear that the movement spaces 13 of two adjacent rotors 1 overlap or penetrate each other, so that wing penetration spaces 16 exist.
Die Rotoren 1 sind damit äußerst eng aneinander bzw. nebeneinander The rotors 1 are thus extremely close to each other or side by side
angeordnet, wobei in der Querstellung eines Rotors, bei der die zwei Flügel eines Rotors im Wesentlichen längs der Ausrichtung der Reihe der Rotoren stehen, die äußeren Enden 2b der Flügel des Rotors den dazu um 90 Grad querstehenden Flügeln der benachbarten Rotoren äußerst nahe sind, ohne diese zu berühren, wie dies in Fig. 2 dargestellt ist. In dieser kurzzeitigen Stellung bilden die Flügel aller Rotoren eine geschlossene und damit im Wesentlichen abgedichtete Reihe (Vollwirkung), bei der die Luft im Wesentlichen nur noch durch die Winddurchlasskanäle 9 strömen kann. arranged, wherein in the transverse position of a rotor, in which the two blades of a rotor are substantially along the alignment of the row of rotors, the outer ends 2b of the blades of the rotor are extremely close to the 90 degrees transverse wings of the adjacent rotors, without to touch them, as shown in Fig. 2. In this short-term position, the wings of all rotors form a closed and thus substantially sealed row (Full effect), in which the air can flow substantially only through the wind passage channels 9.
Somit zeigt die in Fig. 2 dargestellte Drehstellung den Moment, bei der die Flügel jedes zweiten Rotors im Wesentlichen längs der Ausrichtung der Reihe der Rotoren stehen und die Flügel der dazwischen angeordneten Rotoren quer zur Ausrichtung der Reihe der Rotoren sich befinden. Thus, the rotational position shown in Figure 2 shows the moment at which the blades of each second rotor are substantially along the alignment of the row of rotors and the blades of the interposed rotors are transverse to the orientation of the row of rotors.
Zudem weist der Windenergiekonverter in einer möglichen Ausbauform in In addition, the wind energy converter in a possible design in
Windrichtung vor der Reihe der Rotoren 1 Windleitprofile 20 auf, die jeweils den Flügeldurchdringungsraum 16 zwischen zwei Rotoren überdeckt, bei dem die äußeren Flügelenden 2b sich entgegen der Windrichtung stets bewegen und somit eine effiziente Luftströmung in Richtung der Rotoren erreicht. Hierbei sind die Windleitprofile vorzugsweise V-förmig, wobei der Innenraum des Profils den Rotoren zugewandt ist. Wind direction in front of the row of rotors 1 Windleitprofile 20, each covering the Flügeldurchdringungsraum 16 between two rotors, in which the outer wing ends 2b always move against the wind direction and thus achieves efficient air flow in the direction of the rotors. Here, the Windleitprofile are preferably V-shaped, wherein the interior of the profile faces the rotors.
Benachbarte Rotoren 1 drehen sich somit stets in entgegengesetzten Richtungen und immer mit derselben Drehgeschwindigkeit um denselben Drehwinkel. Hierbei sind die Drehachsen 3 der Rotoren 1 zueinander in einem solch geringen Adjacent rotors 1 thus always rotate in opposite directions and always at the same rotational speed by the same angle of rotation. Here, the axes of rotation 3 of the rotors 1 to each other in such a small
Abstand, dass in der in Fig. 2 dargestellten Abdichtstellung (Vollwirkung) die äußeren Flügelenden 2b jedes zweiten Rotors äußerst eng an den konvexen Außenflächen des Flügels des benachbarten Rotors vorbeistreichen, ohne diese zu berühren. Hierbei kann in der Stellung nach Fig. 2 der Spalt zwischen dem Flügelende 2b und der Außenfläche des Flügels des benachbarten Rotors 1 nur wenige Millimeter betragen, so dass durch diesen Spalt nur wenig Luft Distance that in the sealing position (full action) shown in Fig. 2, the outer wing ends 2b of each second rotor exceed extremely close to the convex outer surfaces of the wing of the adjacent rotor, without touching them. Here, in the position shown in FIG. 2, the gap between the wing end 2b and the outer surface of the wing of the adjacent rotor 1 is only a few millimeters, so that only little air through this gap
hindurchdringen kann. can penetrate.
In einer weiteren Ausgestaltung sind die beiden Flügel 2 jedes Rotors 1 durch mindestens ein luftdurchlässiges Überbrückungsteil 17 aneinander befestigt, das den Winddurchlasskanal 9 überbrückt und die Flügel stabilisiert. Das In a further embodiment, the two wings 2 of each rotor 1 are secured together by at least one air-permeable bridging member 17 which bridges the wind passage 9 and stabilizes the wings. The
Überbrückungsteil 17 ist ein Flachteil insbesondere ein Blech mit Bridging 17 is a flat part in particular a sheet with
Luftdurchlassöffnungen 18 insbesondere mit Löchern oder wird von einem, zwei oder mehreren waagerechten Profilen oder Drähten gebildet, die die Air passage openings 18, in particular with holes or is formed by one, two or more horizontal profiles or wires, the
Luftströmung durch den Kanal 9 nicht oder kaum behindern. Hierbei befinden sich das oder die Überbrückungsteil(e) 17 vorzugsweise an beiden Enden des Kanals 9 oder mittig zwischen beiden Kanalenden in Höhe der Drehachse 3. Air flow through the channel 9 is not or hardly hinder. Located here the bridging part (s) 17 preferably at both ends of the channel 9 or centrally between both channel ends at the level of the axis of rotation. 3
Der gesamte Windenergiekonverter kann unbeweglich fest montiert sein. The entire wind energy converter can be immovably fixed.
Alternativ ist der Konverter insbesondere mit seiner Unterseite auf einer mittigen senkrechten Drehachse montiert, um die der Konverter verdrehbar ist, um rechtwinklig zur Windrichtung durch eine nicht dargestellte Antriebsvorrichtung sich automatisch zu stellen. Hierzu wird die Antriebsvorrichtung durch eine Vorrichtung gesteuert, die die jeweilige aktuelle Windrichtung erfasst. Alternatively, the converter is mounted in particular with its underside on a central vertical axis of rotation about which the converter is rotatable in order to set itself at right angles to the wind direction by a drive device, not shown, automatically. For this purpose, the drive device is controlled by a device which detects the respective current wind direction.

Claims

Ansprüche claims
1. Windenergiekonverter mit mehreren, in einer Reihe parallel nebeneinander angeordneten Savonius-Rotoren (1), die jeweils zwei schaufeiförmige, einander überlappende Flügel (2) aufweisen, die entlang der Rotordrehachse (3) befestigt sind und zwischen sich einen zentralen Winddurchlasskanal (9) bilden, wobei die Rotordrehachsen (3) über Getriebe derart miteinander verbunden sind, dass jeder zweite Rotor (1) sich in derselben Richtung dreht und die dazwischen angeordneten Rotoren (1) sich in entgegengesetzter Richtung drehen, dadurch gekennzeichnet, dass der zur Drehachse senkrechte Flügel-Bewegungsraum (13) des Rotors (1), der von den zwei Flügeln (2) des Rotors durchlaufen wird, den Flügel- Bewegungsraum (13) des benachbarten Rotors (1) zu einem Teil durchdringt, und dass in der Querstellung eines Rotors (1 ) bei der die zwei Flügel (2) des Rotors im Wesentlichen längs der Ausrichtung der Reihe der Rotoren stehen, die äußeren Enden (2b) der Flügel (2) des Rotors den dazu quer stehenden Flügeln (2) der benachbarten Rotoren (1 ) derart nahe sind, dass die Flügel aller Rotoren eine geschlossene Reihe insbesondere Wand bilden, bei der die Luft im Wesentlichen nur noch durch die Winddurchlasskanäle (9) strömt. 1. Wind energy converter with a plurality of parallel arranged in a row parallel Savonius rotors (1), each having two schaufeiförmige, overlapping wings (2) which are fixed along the rotor axis of rotation (3) and between them a central wind passage (9) form, wherein the rotor axes of rotation (3) are connected to each other via gears such that each second rotor (1) rotates in the same direction and the rotors (1) arranged therebetween rotate in the opposite direction, characterized in that the wings perpendicular to the axis of rotation Movement space (13) of the rotor (1), which is traversed by the two blades (2) of the rotor, penetrates the wing movement space (13) of the adjacent rotor (1) to a part, and that in the transverse position of a rotor ( 1) in which the two blades (2) of the rotor are substantially along the alignment of the row of rotors, the outer ends (2b) of the blades (2) of the rotor being in addition thereto q The standing wings (2) of the adjacent rotors (1) are so close that the vanes of all the rotors form a closed row, in particular a wall, in which the air flows substantially only through the wind passages (9).
2. Windenergiekonverter nach Anspruch 1 , d a d u r c h 2. Wind energy converter according to claim 1, d a d u r c h
gekennzeichnet, dass in der Drehstellung, bei der die Flügel (2) jedes zweiten Rotors (1 ) im Wesentlichen längs der Ausrichtung der Reihe der Rotoren stehen, die Flügel der dazwischen angeordneten Rotoren quer zur Ausrichtung der Reihe der Rotoren stehen.  characterized in that in the rotational position in which the wings (2) of each second rotor (1) are substantially along the alignment of the row of rotors, the wings of the interposed rotors are transverse to the alignment of the row of rotors.
3. Windenergiekonverter nach Anspruch 1 oder 2, dadurch 3. wind energy converter according to claim 1 or 2, characterized
gekennzeichnet, dass die konkaven Innenflächen (10) beider Flügel (2) eines Rotors (1) einander zugewandt sind und zwischen sich den  characterized in that the concave inner surfaces (10) of both wings (2) of a rotor (1) face each other and between them
Winddurchlasskanal (9) bilden. Wind passageway (9) form.
4. Windenergiekonverter nach Anspruch 3, d a d u r c h 4. Wind energy converter according to claim 3, d a d u r c h
gekennzeichnet, dass die Innenfläche (10) jedes Flügels (2) an dem der Rotordrehachse (3) näheren Flügelende (2a) eine nach innen gerichtete Verdickung (11 ) aufweist.  characterized in that the inner surface (10) of each wing (2) has an inwardly directed thickening (11) at the wing end (2a) which is closer to the rotor axis of rotation (3).
5. Windenergiekonverter nach Anspruch 4, dadurch 5. wind energy converter according to claim 4, characterized
gekennzeichnet, dass die Verdickung (11 ) an ihrem inneren Ende eine in den Durchflusskanal (9) hineinragende Kante (12) bildet, an der sich die Luftströmung anstaut.  characterized in that the thickening (11) at its inner end forms an edge (12) projecting into the flow passage (9), at which the air flow accumulates.
6. Windenergiekonverter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass in Windrichtung vor der Reihe von Rotoren (1 ) insbesondere V-förmige Windleitprofile (20) angeordnet sind, die jeweils den Flügel-Durchdringungsraum (16) zweier Rotoren (1) überdeckt, bei dem die äußeren Flügelenden (2b) sich entgegen der Windrichtung bewegen. 6. Wind energy converter according to one of the preceding claims, characterized in that in the wind direction in front of the row of rotors (1) in particular V-shaped Windleitprofile (20) are arranged, each covering the wing-penetration space (16) of two rotors (1), in which the outer wing ends (2b) move counter to the wind direction.
7. Windenergiekonverter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Flügel (2) der Rotoren (1 ) jeweils zwischen zwei Endscheiben befestigt sind. 7. wind energy converter according to one of the preceding claims, characterized in that the wings (2) of the rotors (1) are each secured between two end plates.
8. Windenergiekonverter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das alle Rotoren miteinander verbindende Getriebe auf den Rotorenwellen befestigte Zahnräder (5) aufweist, die miteinander kämmen oder über die ein Doppel-Zahnriemen (6) oder eine Kette läuft. 8. wind energy converter according to one of the preceding claims, characterized in that the all rotors interconnecting gear mounted on the rotor shafts gears (5) which mesh with each other or over which a double toothed belt (6) or a chain runs.
9. Windenergiekonverter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die beiden Flügel (2) eines Rotors (1 ) durch mindestens ein Überbrückungsteil (17) aneinander befestigt sind, das den Winddurchlasskanal (9) überbrückt. 9. Wind energy converter according to one of the preceding claims, characterized in that the two wings (2) of a rotor (1) by at least one bridging part (17) are fastened to each other, which bridges the wind passage (9).
10. Windenergiekonverter nach Anspruch 9, dadurch 10. wind energy converter according to claim 9, characterized
gekennzeichnet, dass jedes Überbrückungsteil (17)  characterized in that each bridging part (17)
Luftdurchlassbereiche insbesondere Luftdurchlassöffnungen (18) aufweist. Windenergiekonverter nach einem der vorherigen Ansprüche, dad urch gekennzeichnet, dass er auf einer senkrechten Drehachse montiert ist. Air passage areas in particular air passage openings (18). Wind energy converter according to one of the preceding claims, characterized in that it is mounted on a vertical axis of rotation.
PCT/EP2012/004789 2012-01-12 2012-11-17 Wind energy converter WO2013104382A1 (en)

Applications Claiming Priority (2)

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DE102012000428.1 2012-01-12
DE102012000428A DE102012000428A1 (en) 2012-01-12 2012-01-12 The wind energy converter

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BE1026756B1 (en) * 2018-10-31 2020-06-04 Timmerman Rene Jozef Wind energy energy supply system

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