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DE9013551U1 - Blade profile for wind turbines - Google Patents

Blade profile for wind turbines

Info

Publication number
DE9013551U1
DE9013551U1 DE9013551U DE9013551U DE9013551U1 DE 9013551 U1 DE9013551 U1 DE 9013551U1 DE 9013551 U DE9013551 U DE 9013551U DE 9013551 U DE9013551 U DE 9013551U DE 9013551 U1 DE9013551 U1 DE 9013551U1
Authority
DE
Germany
Prior art keywords
wing
wind turbines
blade profile
auxiliary
main
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.)
Expired - Lifetime
Application number
DE9013551U
Other languages
German (de)
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 DE9013551U priority Critical patent/DE9013551U1/en
Publication of DE9013551U1 publication Critical patent/DE9013551U1/en
Priority to DE4132453A priority patent/DE4132453A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • 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
    • F05B2240/20—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
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Description

J.P.Fritz, Bleckeder. Moor 15, 2122 BleckedeJ.P.Fritz, Bleckede. Moor 15, 2122 Bleckede

&igr;« ·&igr;« ·

Beschreibung:Description:

Flügelprofil für WindkraftanlagenBlade profile for wind turbines

der 5!eatinikthe 5!eatinik

Soweit dem Anmelder bekannt ist, liegt hierbei eine Neuentwicklung nach historischem Vorbild vor, nach: "Wissenschaftlich technische Enzyklopädie", V.Krunitz Band 95, Seite 469As far as the applicant is aware, this is a new development based on a historical model, according to: "Scientific technical encyclopedia", V. Krunitz Volume 95, page 469

Zudem wurden umfangreiche Windkanalversuche durchgeführt. In addition, extensive wind tunnel tests were carried out.

ProMsniProMsni

I: aufgab der F-rfindung be^ceht 1ail:k, eine mögliche I optimale Ausnutzung vi_; Luftbe jungen zu erzielen. The aim of the invention is to achieve the best possible utilization of air flow.

Die Aufgabe wirrt durch einen Hauptflügel dessen Druckfläche Teil einer Ellipse ist und ungleiche ^lachen hat, sowie zwei Hilfsflügel besitzt, gelöst.The task is solved by a main wing whose pressure surface is part of an ellipse and has unequal surfaces, as well as two auxiliary wings.

Vort£ilhaf_te_Wi.rkung£n_de_r_Erfi:nd_un_g Mit der Erfindung können Windgeschwindigkeiten zwischen 3m/s und Sturmböen über eine entsprechende Windkraftanlage ausgenutzt werden. Die gemessenen Werte bezogen auf Quadratmeter überstrichene Flügelflqchelxegen bei 1200 Watt bei günstigen Verhältnissen. Also dem mehrfachen herkömmlicher Windkraftanlagen.Advantageous effect of the invention : With the invention, wind speeds between 3 m /s and gusts can be exploited by a corresponding wind turbine. The measured values based on square meters of swept blade area are at 1200 watts under favorable conditions. That is several times that of conventional wind turbines.

Gewerbl_i£he_ AusnutzungCommercial exploitation

I'ie erzielten Werte lassen auf eine bessere kommerzielle Ausnutzung von Windanlagen schließen.The values obtained indicate a better commercial utilization of wind turbines.

d_er Krf_indung_d_er Kr_ndung_

jjas Flügelprofil besteht aus drei einzelnen Flügeln, einem Haupt- und zwei Hilf sfliigeln.jjas wing profile consists of three individual wings, a main and two auxiliary wings.

J.P.Fritz, Bleckeaer i-'oor 15, 212^ Ble_keceJ.P.Fritz, Bleckeaer i-'oor 15, 212^ Ble_kece

■ »■ »

Der Hauptflügel· hat eine parabellförmige Druckfläche sowie eine Sogfläche, die in einem Verhältnis L/1,03 stehen. Vor der Nase des Hauptflügels ist ein Hilfsflügel mit der Breite L/3,54 zur Druckfläche mit einer; Luftspalt L/58 angebracht, welcher für eine beschleunigte Abführung der Luft auf der Sogseite des Flügelprofils sorgt. Wicht!" sind die gegeneinander steh end en gewölbten Flächen as Hauptflügels zu dem Hilf sflüge.l, wodurch eine Düsenwirkung entgeht. The main wing has a parabolic pressure surface and a suction surface, which are in a ratio of L/1.03. In front of the nose of the main wing is an auxiliary wing with a width of L/3.54 to the pressure surface with an air gap of L/58, which ensures an accelerated discharge of the air on the suction side of the wing profile. Important!" are the opposing curved surfaces of the main wing to the auxiliary wing, which avoids a jet effect.

Die Profile sind ellipsenförmig konstruiert. Der hintere Hilfsflügel hat eine Breite L/4,14 mit dem Abstand L/11,6 zum Hauptflügel. Das Profil des hinteren Hilfsflügels ist neutral, d.h. gleiche Druck- bzw. fiogfläche. lieser hintere Kilfsflügel unterbindet eine ungünstige Wirbelbildung an der Abrißkante des Hauptflüg.ols und verlagert diese Wirbel hinter den Flügel.The profiles are elliptical in shape. The rear auxiliary wing has a width of L/4.14 and a distance of L/11.6 from the main wing. The profile of the rear auxiliary wing is neutral, i.e. the same pressure or wing area. This rear auxiliary wing prevents unfavorable vortex formation at the separation edge of the main wing and shifts these vortices behind the wing.

Die Größe L wird entsprechend der zu verwendenen Fiügelanzahl sowie der gewünschten Leistung der Windkraftanlage definiert.The size L is defined according to the number of blades to be used and the desired performance of the wind turbine.

Die genaue Form des Hauptflügels und der Hilfsflügel ist in rier Zeichnung dargestellt und kann hieraus entnommen werden.
In der Zeichnung sind dargestellt:The exact shape of the main wing and the auxiliary wings is shown in the drawing and can be seen from here.
The drawing shows:

A = vorderer HilfsflügelA = front auxiliary wing

B = HauptflügelB = main wing

C = hinterer HilfsflügelC = rear auxiliary wing

Claims (1)

.T.F.Fritz, Bleckeder &Mgr;&ogr;&sfgr;&tgr;.·. .1.5, 2} 22. Bleckede.TFFritz, Bleckeder &Mgr;&ogr;&sfgr;&tgr;.·. .1.5, 2} 22. Bleckede r.chutzanspriiche :r.protection claims: Flügel für Windkraftanlagen, der dadurch gekennzeichnet ist, daß er einen Häuptlinge!, dessen Truck fläche -Teil einer Ellipse ist und ungleiche Flächen hat, sowie zwei Hilfsi'lügel besitzt.Blade for wind turbines, characterized by having a main blade whose surface is part of an ellipse and has unequal surfaces, and two auxiliary blades.
DE9013551U 1990-09-27 1990-09-27 Blade profile for wind turbines Expired - Lifetime DE9013551U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9013551U DE9013551U1 (en) 1990-09-27 1990-09-27 Blade profile for wind turbines
DE4132453A DE4132453A1 (en) 1990-09-27 1991-09-25 Vane for wind power unit - comprises main vane and at least one fore-vane section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9013551U DE9013551U1 (en) 1990-09-27 1990-09-27 Blade profile for wind turbines

Publications (1)

Publication Number Publication Date
DE9013551U1 true DE9013551U1 (en) 1991-01-17

Family

ID=6857865

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9013551U Expired - Lifetime DE9013551U1 (en) 1990-09-27 1990-09-27 Blade profile for wind turbines

Country Status (1)

Country Link
DE (1) DE9013551U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134062A1 (en) * 1991-10-15 1992-04-02 Dieter Schulz Aircraft propeller with tandem blades - has each tandem pair consisting of two overlapping blades
WO2010088892A3 (en) * 2009-02-06 2011-04-14 Rolf Dieter Mohl Propeller blades for a propeller for a wind energy module, housing for a wind energy module, wind energy module, wind energy plant and use of a wind energy plant
WO2010125599A3 (en) * 2009-04-27 2011-06-03 Leonardo Valentini Rotor blade with aerodynamic flow static diverter for vertical axis wind turbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134062A1 (en) * 1991-10-15 1992-04-02 Dieter Schulz Aircraft propeller with tandem blades - has each tandem pair consisting of two overlapping blades
WO2010088892A3 (en) * 2009-02-06 2011-04-14 Rolf Dieter Mohl Propeller blades for a propeller for a wind energy module, housing for a wind energy module, wind energy module, wind energy plant and use of a wind energy plant
WO2010125599A3 (en) * 2009-04-27 2011-06-03 Leonardo Valentini Rotor blade with aerodynamic flow static diverter for vertical axis wind turbine

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