WO2012136175A2 - Rotor de savonius à structure d'appui centrale - Google Patents

Rotor de savonius à structure d'appui centrale Download PDF

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Publication number
WO2012136175A2
WO2012136175A2 PCT/DE2012/000035 DE2012000035W WO2012136175A2 WO 2012136175 A2 WO2012136175 A2 WO 2012136175A2 DE 2012000035 W DE2012000035 W DE 2012000035W WO 2012136175 A2 WO2012136175 A2 WO 2012136175A2
Authority
WO
WIPO (PCT)
Prior art keywords
core
rotor
wings
savonius rotor
savonius
Prior art date
Application number
PCT/DE2012/000035
Other languages
German (de)
English (en)
Other versions
WO2012136175A4 (fr
WO2012136175A3 (fr
Inventor
Oliver Wochian
Original Assignee
Oliver Wochian
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 Oliver Wochian filed Critical Oliver Wochian
Priority to MX2013010414A priority Critical patent/MX344324B/es
Publication of WO2012136175A2 publication Critical patent/WO2012136175A2/fr
Publication of WO2012136175A3 publication Critical patent/WO2012136175A3/fr
Publication of WO2012136175A4 publication Critical patent/WO2012136175A4/fr

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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/064—Fixing wind engaging parts to rest of rotor
    • 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
    • F05B2260/00—Function
    • F05B2260/90—Braking
    • 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

  • a wind turbine with a Savonius rotor consists of an outer support frame and a rotor rotating about the vertical axis.
  • the rotor consists essentially of two wings, a bottom plate and a cover plate. Base and cover plate are mounted centrally, so that the rotor can rotate in a holding frame about the vertical axis.
  • the arrangement of the components is derived from a cylinder, which has been divided vertically into two equal cylinder halves.
  • cylinder halves are located horizontally in the same plane, but are offset radially outwardly at the cut surfaces. This creates two blades. Thus, air can enter the one blade and exit through the resulting opening in the middle at the other blade again. In their position, the cylinder halves are held by a bottom and a top plate. Vertical connecting bars between the bottom and top plates clamp the wings and give the flights the necessary support. The bottom and top plates themselves are located exactly in the middle and rotate around the vertical axis. The two cylinder halves rotate around this axis.
  • This construction also offers a usable torque at low speed and it emits due to design hardly perceptible wind noise.
  • the core ensures that there is always enough space in the center of the machine for the flowing medium, even if the wings are moved radially inwards and overlap.
  • the area of a wing should be about three times the area of the core through which the medium flows.
  • the wings themselves are fully or partially attached to the left and right sides of the rotor.
  • the two other sides of the core remain free and serve as an opening to allow the air to flow from the windward wing to the wind away.
  • a core side plate pair In a core that carries two rotors with four blades, a core side plate pair only reaches half the height and decreases by the thickness of the center plate. The other core side plate pair is mounted above and mounted offset by 90 degrees.
  • a further development of the Savonius rotor according to the invention consists in that, during rotation, a fluid forced outwards by the centrifugal force from a tank in the core by means of a pipe or hose connection increases the torque which the machine can absorb at the maximum permissible speed.
  • the vertical components at the wing ends of the outer frame are performed by a closed off of the rotor lid and rotor bottom tube.
  • Liquids pumped outward by fast turns allow the machine to store significantly more energy and provide even energy delivery.
  • the liquid is conveyed by the centrifugal force in the stabilizer tubes located at the very edge of the wing.
  • the liquid must be frost-proof.
  • a development of the Savonius rotor according to the invention is that the wing shapes deviate from the known forms of the Savonius rotor.
  • the one wing shape is based on a circular wing whose segment describes one third of a full circle and thus stands out clearly from the half shell, which is known today as the prior art.
  • This circle segment is located on the extension of the core side wall, so that the wing seen from the axis of rotation is only radially outward and then merges into a circular arc.
  • the other extreme consists only of completely flat plates without any bending.
  • a further development of the Savonius rotor according to the invention is that space is created for the core, in which deviates from the round shape of the wings of the Savönius rotor enclosing plates.
  • the shape of the wings ultimately determines the shape of the supporting plates. This implies the use of oval, rectangular or parallelogram-like shapes.
  • supporting elements here are on the top of the lid and the bottom of the bottom to provide a parallelogram, which extends from one wing tip to the other.
  • square, rectangular or round shapes are also suitable.
  • a development of the Savonius rotor according to the invention is that the highest possible efficiency can be achieved if the core the cover plate and the bottom plate are provided with an opening so that the air can flow not only in the direction of the other wing through the machine, but also from the openings just mentioned.
  • This design is particularly suitable for three levels.
  • the lower rotor is additionally vented through an opening in the bottom plate and the upper rotor is additionally vented with an opening in the cover plate.
  • a development of the Savonius rotor according to the invention is that the drive wheel, which transmits the mechanical energy by means of toothed belt of the connected machine, is not round, but oval.
  • the blades of the two-bladed machine are forced by means of magnets to come to a stop in exactly the position that the impeller side is always in the direction of generator impeller with the strong curvature of the oval wheel. This has the advantage that when starting the point of application of the force is closer to the pivot point and thus requires a lower breakaway torque.
  • a similar wheel is mounted below the drive wheel, which is offset by 90 degrees and its abutment exactly opposite the wheel z. B. for the generator.
  • This second wheel is used to decelerate the rotor if the wind speed is too high.
  • the opposite abutment relieves the generator bearing and thus ensures a more even run.
  • a mechanical or an electric brake reduces the speed by means of centrifugal clutch.
  • the vertical stabilization plates additionally serve as baffles to provide maximum torque at the location where the Savonius rotor does not provide torque.
  • Their course roughly corresponds to that of the capital letter "N.”
  • Two vertical lines grasp a 60-degree connecting line, and in a plan view where the long side of the oval plate faces north / south, two stabilizing plates are radially toward the edge in north 60 degrees to the southwest / northeast.
  • Each of these two inclined plates begins at the point where the cover plate is mounted directly below the core and continue along the rotating axis until shortly before From the radially outer end of the baffles are small flow baffles which run exactly east / west.
  • the length of the stabilizer plates fixed parallel to the long side of the oval bottom plate is about three times as long as the side length of the bottom plate by the double side length of the core bottom plate radially outward in R West or East shifted. Between the plates of one side remains an opening whose extent corresponds approximately to the side length of
  • a development of the Savonius rotor according to the invention is that although the same rotor shape is used on each level, but also different wing shapes can be used when using two levels.
  • the invention is explained in more detail below:
  • Figure 4 Side view of core with angled plate, horizontal to the bottom plate
  • FIG 10 Savonius rotor with one plane and 3 wings, having a triangular core vented up and down through the supporting plates
  • Figure 1 1 Savonius rotor with 4 planes, 8 wings, square core and flat wings
  • Figure 12 Top view top cover plate of a rotor with a plane and 2 wings with
  • Rotor with wing formed from a 120 ° bend as a third segment of a circle
  • Wing formed from a 120 ° bend as a third segment of a circle
  • Savonius rotors are stored in at least two places.
  • a bearing is below the rotor (1) and a bearing is located above the rotor (2) on the axis of rotation (3).
  • Each core can be combined with each wing. Therefore, only a few examples are mentioned here.
  • the central component of this Savonius rotor is the core.
  • This core consists of a cuboid square tube frame (4) with a square base (5) and a height which is identical to the total height of the superposed pairs of wings plus the thickness of the middle support plate (1 1).
  • the core (4) is centrally located on the bottom plate and is aligned symmetrically to the axis of rotation (6).
  • Halfway up the core a horizontal angle plate is mounted in each of the four corners of the vertical support elements (7).
  • the vertical distance of the four angle plates from the bottom plate is selected such that a small flow-guiding plate (9) mounted on the four angles reaches exactly half the height of the core inside the core (10).
  • the middle support plate (1 1) has the same shape as the bottom plate. It differs only by a square opening in the middle. Its edge length corresponds to the outer edge length of the core (12).
  • the supernatant of the lower core outer sides (13) carries the middle plate (11).
  • bottom plate (6) and middle plate (11) Between bottom plate (6) and middle plate (11) is the lower pair of wings whose wings are diametrically opposite, part of the surface (14) are mounted.
  • the wings of the lower rotor extend the respective projection of the core side walls (13) seamlessly and then follow a hyperbolic curvature (15).
  • the bottom plate includes the lower pair of wings from below and the middle plate from above.
  • the lower bottom plate of the upper rotor is identical to the cover plate of the lower rotor.
  • the vertical wings are guided by a groove, the upper rotor is completely identical. Only its wings, opposite the wings of the lower rotor, diametrically opposite to the other two sides of the core attached (16).
  • the upper wings are held by the middle plate from below and the cover plate from above, which itself lies on the core side extension of the upper rotor (21).
  • This core side extension of the upper rotor formed by two side plates, which are slightly wider than the core side itself and are attached to the sides of the upper rotor.
  • Each individual rotor is equipped with vertical connecting rods, which contract the bottom and top plates belonging to a rotor, thus ensuring that the blades remain in the groove.
  • the connecting rods follow the radii of curvature of the wings alternately, once inside the wing (22) and then outside the wing (23).
  • the distance of the connecting rods should not be greater than the outer edge length of the square core.
  • Savonius rotor is an equilateral / isosceles triangle (30).
  • the core thus consists of a triangular column with horizontal Kembodenplatte and horizontally lying core cover plate.
  • the wings are partially attached to each horizontal edge (14) and thus bent in a clockwise direction so that three similar concave windscreen surfaces arise (34).
  • the curvature of the wings seen from the core increases towards the outside more and more.
  • the length of the wings is four times the side length of the core.
  • this core is centrally stored, but the bearing points are located exactly at the corners of the triangular core.
  • a round recess (33), which extends to the inner edge of the core bottom plate or the core cover plate, so that an axially through the entire core passing through opening is formed.
  • the incoming air leaves the rotor thereby additionally by a vertical flow up through the cover plate, or down through the bottom plate. This reduces the flow rate of the medium in the core itself and reduces turbulence within the core.
  • Application example is a Savonius rotor with 4 levels, 8 wings, square core and flat wings.
  • This design uses a cuboid, divided into four equal fragments fragments core, each with identical, square base (5).
  • Each core fragment is firmly linked to the one above it on all four sides.
  • the outsides of the lowermost and secondmost rotors are interconnected by an outer frame (40).
  • the lower horizontal connecting element (41) of the outer frame extends below the lowest floor panel and above the uppermost floor panel (42).
  • the wing outer sides of the second and the fourth rotor are connected by an outer core with each other.
  • Their horizontal connecting element extends below the lowermost cover plate (43) and above the uppermost cover plate (44).
  • a vertical axis centrally through the entire core, as well as floor and ceiling plate connects all four core fragments together and ensures the rotation of the rotor.
  • Below the bottom and above the cover plate are each an abutment which exerts pressure on the core fragments and thus ensure their cohesion.
  • the wings are designed to be mechanically displaceable, so you can reduce the opening of the wings and so can adapt to changing wind conditions.
  • the wings can also be moved hydraulically or electrically.
  • Application example is a Savonius rotor with 1 plane, 2 wings, square core and stabilization plates designed as auxiliary wing
  • the central component of this Savonius rotor is the core, this core consists of a cuboid square tube frame (4) with a square base (5) and a height which is identical to the total height of mounted pairs of wings.
  • the core is exactly in the center of the oval bottom plate (47) and is aligned symmetrically to the rotation axis (3).
  • the open side of the core (50) is parallel to the direction deT longest (52) and the closed side (51) of the core is parallel to the direction of the shortest Connecting line (53) between two lying on the circular path points of the oval bottom plate (47) aligned.
  • a horizontal angle plate are mounted in all four corners of the vertically standing Traglement (7).
  • the vertical wings are guided by a groove.
  • the rotor is equipped with vertical connecting rods, which contract the bottom and top plate, ensuring that the wings remain in the groove.
  • the connecting rods follow the radii of curvature of the wings alternately once within the wing (23) and then outside the wing (22).
  • the distance of the connecting rods should not be greater than the outer edge length of the square core.
  • two stabilizing plates and two flow guide plates are attached, which have the same height of 50 cm. Between the stabilizing plates (45) and two flow guide plates (46), a gap (54), which is as wide as the square base plate of the core, remains on each side of the rotor. Two plates stabilize the cover plate horizontally and two plates additionally serve as flow control plates.
  • the two stabilization plates (45) are aligned exactly parallel to the open side of the core (50) and the two flow guide plates (46) are at an angle of about 60 degrees (here 57.45 degrees) away from the line (53) counterclockwise inclined and run radially almost to the edge of the cover plate.
  • small flow baffles (49) are mounted, which extend to the edge of the cover plate and deflect the air flowing through the remaining opening through each air in the radial direction to the outside.
  • the auxiliary wings get their full functionality by a rectangular cover plate whose corners coincide with the end points of the flow baffle plates (48).
  • the cover plate is so large that all four stabilizing plates fit exactly underneath.

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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)
  • Wind Motors (AREA)

Abstract

L'invention concerne un rotor de Savonius à axe de rotation vertical (3), comprenant une plaque supérieure et une plaque inférieure comprenant au moins deux pales qui sont décalées radialement vers l'extérieur le long d'une section diamétrale et verticale, et incurvées de telle manière que chaque pale forme une ouverture concave fermée sur le haut et le bas, chaque pale formant ainsi une surface de prise de vent. Le rotor de Savonius selon l'invention est caractérisé en ce qu'il est doté d'un noyau central et d'un noyau externe qui s'étendent de la plaque inférieure à la plaque supérieure afin d'assurer la stabilité mécanique. Le noyau interne central est constitué d'une structure porteuse polygonale dotée d'élément de renforts, qui accroît le rendement effectif du rotor de Savonius. En outre le rotor de Savonius selon l'invention est caractérisée en ce qu'il autorise des formes de pales hyperboliques pouvant aller jusqu'à des formes de plaques planes exemptes de courbure. Les pales peuvent se décaler et sont ainsi en mesure de s'adapter aux conditions de vent momentanées. Simultanément, des liquides qui sont déplacés vers l'extérieur par la force centrifuge, à l'encontre de la force de pesanteur, augmentent l'énergie de rotation maximale recevable. Une roue d'entraînement ovale réduit sensiblement le couple de démarrage du rotor. Une roue de freinage est opposée à la roue dentée de la machine de travail relativement à l'axe de rotation, et le protège de couples de flexion dus aux alternances d'effort. Dans un rotor de Savonius doté de seulement deux pales, les plaques de stabilisation sont réalisées sous forme de pales additionnelles sur la plaque supérieure. Ces pales additionnelles présentent des ouvertures latérales dans lesquelles l'air s'écoule tangentiellement à l'encontre du sens de rotation du rotor, fournissant ainsi un couple de rotation additionnel.
PCT/DE2012/000035 2011-03-11 2012-02-14 Rotor de savonius à structure d'appui centrale WO2012136175A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MX2013010414A MX344324B (es) 2011-03-11 2012-02-14 Endoprotesis que contiene un recubrimiento de substancia activa.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011004964.7 2011-04-05
DE202011004964U DE202011004964U1 (de) 2011-04-05 2011-04-05 Savonius-Rotor mit zentraler Stützkonstruktion

Publications (3)

Publication Number Publication Date
WO2012136175A2 true WO2012136175A2 (fr) 2012-10-11
WO2012136175A3 WO2012136175A3 (fr) 2012-12-20
WO2012136175A4 WO2012136175A4 (fr) 2013-02-28

Family

ID=44317527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/000035 WO2012136175A2 (fr) 2011-03-11 2012-02-14 Rotor de savonius à structure d'appui centrale

Country Status (2)

Country Link
DE (1) DE202011004964U1 (fr)
WO (1) WO2012136175A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012019497B4 (de) * 2012-10-04 2014-08-14 Karl Baumann Rotorflügel für Windkraftmaschinen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049590A1 (de) 2007-10-15 2009-04-16 Emmanuel Ouranos Drei- oder vierblättrige Vertikal-Windturbinen, mit oder ohne darüber angebrachtem Kollektor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1766765A (en) * 1927-12-16 1930-06-24 Sigurd J Savonius Wind rotor
US3942909A (en) * 1974-07-22 1976-03-09 Science Applications, Inc. Vertical axis fluid driven rotor
US4359311A (en) * 1981-05-26 1982-11-16 Benesh Alvin H Wind turbine rotor
US4886421A (en) * 1984-01-09 1989-12-12 Wind Feather, United Science Asc. Wind turbine air foil
US7964984B2 (en) * 2010-04-01 2011-06-21 Saavedra John A Electric power generator utilizing intermittent wind

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049590A1 (de) 2007-10-15 2009-04-16 Emmanuel Ouranos Drei- oder vierblättrige Vertikal-Windturbinen, mit oder ohne darüber angebrachtem Kollektor

Also Published As

Publication number Publication date
WO2012136175A4 (fr) 2013-02-28
DE202011004964U1 (de) 2011-06-28
WO2012136175A3 (fr) 2012-12-20

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