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DE20120324U1 - Rotor blade for a wind turbine - Google Patents

Rotor blade for a wind turbine

Info

Publication number
DE20120324U1
DE20120324U1 DE20120324U DE20120324U DE20120324U1 DE 20120324 U1 DE20120324 U1 DE 20120324U1 DE 20120324 U DE20120324 U DE 20120324U DE 20120324 U DE20120324 U DE 20120324U DE 20120324 U1 DE20120324 U1 DE 20120324U1
Authority
DE
Germany
Prior art keywords
blade
wind turbine
dipl
rotor blade
phys
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
DE20120324U
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.)
Senvion GmbH
Original Assignee
Repower Systems SE
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 Repower Systems SE filed Critical Repower Systems SE
Priority to DE20120324U priority Critical patent/DE20120324U1/en
Publication of DE20120324U1 publication Critical patent/DE20120324U1/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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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)

Description

BOEHMERT & BOEHMERTBOEHMERT & BOEHMERT

Bochmort & Bochmcrt · Nicmannsweg 133 · D-24105 KielBochmort & Bochmcrt · Nicmannsweg 133 · D-24105 Kiel

Deutsches Patent- und Markenamt Zweibrückenstr.German Patent and Trademark Office Zweibrückenstr.

80297 München80297 Munich

DR.-ING. KARL BOEHMERT, PA (1899-1973)
DIPL-ING. ALBERT BOEHMERT, PA (1902-1993)
WILHELM J. H. STAHLBERG, RA, Brauen
DR-ING. WALTER HOORMANN, PA·. Bremen
DIPL-PHYS. DR HEINZ GODDAR, PA·, Mönchen
DR-ING. ROLAND LIESEGANG.&Rgr;&Lgr;·,Mönchen
WOLF-DIETER KUNTZE, RA. Bremen, Aliunte
DlPL-PHYS. ROBERT MÜNZHUBER, PA (1933-1992)
DR. LUDWIG KOUKER, RA. Bremen
DR. (CHEM.) ANDREAS WINKLER, PA·, Bremen DR.-ING. KARL BOEHMERT, PA (1899-1973)
DIPL-ING. ALBERT BOEHMERT, PA (1902-1993)
WILHELM JH STAHLBERG, RA, Brewing
DR-ING. WALTER HOORMANN, PA·. Bremen
DIPL-PHYS. DR HEINZ GODDAR, PA·, Mönchen
DR-ING. ROLAND LIESEGANG. &Rgr;&Lgr;·,Mönchen
WOLF-DIETER KUNTZE, Attorney at Law Bremen, Aliunte
DlPL PHYS. ROBERT MÜNZHUBER, PA (1933-1992)
DR. LUDWIG KOUKER, Attorney at Law Bremen
DR. (CHEM.) ANDREAS WINKLER, PA·, Bremen

MICHAELA HUTH-DIERIG, RA, Mönchen
DIPL-PHYS. DR. MARION TÖNHARDT, PA·. Düsseldorf
DR. ANDREAS EBERT-WEIDENFELLER, RA. Bremen
DIPL-ING. EVA LIESEGANG, PA·, München
DR. AXEL NORDEMANN, RA. Berlin
DlPL-PHYS. DR. DOROTHtE WEBER-BRULS.PA·,Frankfurt
DIPL-PHYS. DR. STEFANSCHOHE.PA·.Mönchen
DR-ING MATTHIAS PHILIPP. PA·. Bielefeld MICHAELA HUTH-DIERIG, RA, Mönchen
DIPL-PHYS. DR. MARION TÖNHARDT, PA·. Dusseldorf
DR. ANDREAS EBERT-WEIDENFELLER, LAWYER Bremen
DIPL-ING. EVA LIESEGANG, PA·, Munich
DR. AXEL NORDEMANN, RA. Berlin
DlPL PHYS. DR. DOROTHtE WEBER-BRULS.PA·, Frankfurt
DIPL-PHYS. DR. STEFANSCHOHE.PA·. Mönchen
DR-ING MATTHIAS PHILIPP. PA·. Bielefeld

DR. MARTIN WIRTZ, RA, Düsseldorf
DR. DETMAR SCHÄFER, RA, Bremen DR. MARTIN WIRTZ, RA, Düsseldorf
DR. DETMAR SCHÄFER, LAWYER, Bremen

DR. JAN BERND NORDEMANN, LLM., RA, Berlin DR. JAN BERND NORDEMANN, LLM., RA, Berlin

&Rgr;&Lgr; - Patentanwalt/Patent Attorney&Rgr;&Lgr; - Patent Attorney

RA - RechtsamwriMttomey ot I n ivRA - Legal AmwriMttomey ot I n iv

• - European Patent Attorney " - Brandenburg, zugelassen am OLG Brandenburg• - European Patent Attorney " - Brandenburg, admitted to the Higher Regional Court of Brandenburg

° - Maitre en Droit° - Master in Law

° - Licencid en Droit AiIc zugcluun zur Vertretung vor den* Europftiichen MukeiuiM. AIn° - Licencid en Droit AiIc zugcluun to representation before the* European Union. AIn

Profcuioful Repreientilion «1 the Con rnunity Tnukmufc Office, AliaProfcuioful Repreientilion «1 the Con rnunity Tnukmufc Office, Alia

PROF. DR. WILHELM NORDEMANN, RA, BRB1 DlPL-PHYS. EDUARD BAUMANN, PA·, Hohenlirchen DR-ING. GERALD KLÖPSCH, PA-. Düsseldorf DIPL-ING. HANS W. GROENING, PA·. München D1PL.-1NG. SIEGFRIED SCHIRMER, PA·. Bielefeld DlPL-PHYS. LORENZ HANEW]NKEL. PA·. Paderborn DIPL-ING. DR. JAN TONNIES, PA, RA. Kiel DIPL-PHYS CHRISTIAN BlEHL, PA·, Kiel DIPL-PHYS. DR-ING. UWE MANASSE, PA·. Bremen DR. CHRISTIAN CZYCHOWSKI, RA. Berlin DR. CARL-RICHARD HAARMANN, RA, München DIPL-PHYS DR THOMAS L BlTTNER, PA-.Berlin DR. VOLKER SCHMITZ, RA, München DlPL-PHYS. CHRISTIAN W. APPELT, PA·,Mönchen DR. ANKE NORDEMANN-SCHIFFEL, RA". Poudam KERSTIN MAUCH, LL.M, RA, Potsdam DIPL.-BIOL. DR. JAN B. KRAUSS, PA, Mönchen JÜRGEN ALBRECHT, RA, München ANKE SIEBOLD, RA, Bremen
DR. KLAUS TIM BROCKER, RA, Bertin DR. ANDREAS DUSTMANN. LLM,RA.Potsdam DIPL-ING. NILS T. F. SCHMID, PA. München FLORIAN SCHWAB, LL.M, RA", München PROF. DR. WILHELM NORDEMANN, RA, BRB 1 DlPL-PHYS. EDUARD BAUMANN, PA·, Hohenlirchen DR-ING. GERALD KLÖPSCH, PA-. Düsseldorf DIPL-ING. HANS W. GROENING, PA·. Munich D1PL.-1NG. SIEGFRIED SCHIRMER, PA·. Bielefeld DlPL-PHYS. LORENZ HANEW]NKEL. PA·. Paderborn DIPL-ING. DR. JAN TONNIES, PA, RA. Kiel DIPL-PHYS CHRISTIAN BlEHL, PA·, Kiel DIPL-PHYS. DR-ING. UWE MANASSE, PA·. Bremen DR. CHRISTIAN CZYCHOWSKI, RA. Berlin DR. CARL-RICHARD HAARMANN, RA, Munich DIPL-PHYS DR THOMAS L BlTTNER, PA-.Berlin DR. VOLKER SCHMITZ, RA, Munich DlPL-PHYS. CHRISTIAN W. APPELT, PA·, Mönchen DR. ANKE NORDEMANN-SCHIFFEL, RA". Poudam KERSTIN MAUCH, LL.M, RA, Potsdam DIPL.-BIOL. DR. JAN B. KRAUSS, PA, Mönchen JÜRGEN ALBRECHT, RA, Munich ANKE SIEBOLD, RA, Bremen
DR. KLAUS TIM BROCKER, RA, Bertin DR. ANDREAS DUSTMANN. LLM, RA.Potsdam DIPL-ING. NILS T. F. SCHMID, PA. Munich FLORIAN SCHWAB, LL.M, RA", Munich

In Zusammenarbeit mil/in cooperation wilnIn cooperation mil/in cooperation wiln

DIPL-CHEM. DR. HANS ULRICH MAY, PA·, Manchen DIPL-CHEM. DR. HANS ULRICH MAY, PA·, Manchen

Ihr Zeichen
Your ref.Your sign
Your ref.

Ihr Schreiben Your letter ofYour letter Your letter of

NeuanmeldungNew registration

Unser Zeichen
Our ref.Our sign
Our ref.

P 5238 Kiel, P 5238 Kiel,

13. Dez. 200113 Dec 2001

pro + pro Energiesysteme GmbH & Co. KG Mühlenstr. 9, 24768 Rendsburgpro + pro Energiesysteme GmbH & Co. KG Mühlenstr. 9, 24768 Rendsburg

Rotorblatt für eine WindkraftanlageRotor blade for a wind turbine

Die Erfindung betrifft ein Rotorblatt für eine Windkraftanlage. The invention relates to a rotor blade for a wind turbine.

Bei Windkraftanlagen stellt sich das Problem, daß der Abstand zwischen der Ebene, in der die Rotorblätter rotieren, und der Turmwand kritisch ist. Dieser soll möglichst gering sein, damit keine unnötig großen Biegekräfte aufThe problem with wind turbines is that the distance between the plane in which the rotor blades rotate and the tower wall is critical. This distance should be as small as possible to avoid unnecessary bending forces on

... Niemannsweg.l33;.D-241.05 Kie,l.· TeJe,phoij+4J-43,1-84.075 +49.-431-84077... Niemannsweg.l33 ; .D-241.05 Kie,l. TeJe,phoij+4J-43,1-84.075 +49.-431-84077

MÜNCHEN - BREMEN - filERlJNl-'lJüSSELDORf -JfR/ISiKfCirT- BIB.E&LCi- POTS*DAM -*RAN£>£NBURG -KIEL* PADERBORN - HÖHENKIRCHEN - ALICANTE ... .... ...... . ...MUNICH - BREMEN - filERlJNl-'lJüSSELDORf -JfR/ISiKfCirT- BIB.E&LCi- POTS*DAM -*RAN£>£NBURG -KIEL* PADERBORN - HÖHENKIRCHEN - ALICANTE ... .... ...... . ...

... .... "fiftp^www'lio'ehnieii.ilc ** ** ***e-mafl: postmasterfi^ßoehmert.de... .... "fiftp^www'lio'ehnieii.ilc ** ** ***e-mafl: postmasterfi^ßoehmert.de

BOEHMERT &*&Bgr;&Ogr;&Egr;&EEacgr;&Mgr;&egr;£&Tgr;
- 2 -BOEHMERT &*&Bgr;&Ogr;&Egr;&EEacgr;&Mgr;&egr;£&Tgr;
- 2 -

die Rotorachse ausgeübt werden, zum anderen muß der Abstand groß genug sein, damit auch bei einer von dem Wind verursachten extremen Durchbiegung der Rotorblätter in Richtung auf den Turm eine Kollision mit dem Turm ausgeschlossen ist.the rotor axis, and on the other hand, the distance must be large enough to prevent a collision with the tower even if the rotor blades bend extremely towards the tower due to the wind.

Erfindungsgemäß wird dieses Problem dadurch gelöst, daß in nicht-belastetem Zustand der Rotorblätter der Abstand der am weitesten nach Luv weisenden Punkte der Blattunterseite von der Blattachse an jeder Stelle des Blattes mindestens so groß wie an der Blattwurzel ist.According to the invention, this problem is solved in that, in the unloaded state of the rotor blades, the distance of the points on the underside of the blade pointing furthest to windward from the blade axis is at least as large at every point on the blade as at the blade root.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt:The invention is explained below with reference to a drawing.

Fig. 1 den Turm einer Windenergieanlage mit den Rotorblättern,Fig. 1 the tower of a wind turbine with the rotor blades,

Fig. 2 eine Darstellung eines Rotorblattes im größeren Maßstab, undFig. 2 a larger scale representation of a rotor blade, and

Fig. 3 die Profilgeometrie anhand von Querschnitten durch das Rotorblatt.Fig. 3 the profile geometry based on cross sections through the rotor blade.

In Fig. 2 wird deutlich, daß die nach Luv weisende (linke) weisende Blattunterseite im wesentlichen gestreckt ausgebildet ist. Bei der dargestellten Ausführungsform verläuft diese Blattunterseite mit einem gleichbleibenden Abstand von der - strichpunktiert dargestellten Blattachse, also der mittig auf der Blattwurzel 14 aufstehenden (gedachten) Achse.In Fig. 2 it is clear that the windward (left) facing underside of the blade is essentially elongated. In the embodiment shown, this underside of the blade runs at a constant distance from the blade axis shown in dash-dotted lines, i.e. the (imaginary) axis located centrally on the blade root 14.

In Fig. 2 wird erkennbar, daß die hier vorgeschlagene Ausbildung bewirkt, daß der Abstand zwischen dem BlattIn Fig. 2 it can be seen that the design proposed here causes the distance between the blade

BOEHMERTBOEHMERT

und dem Turm größer als bei den bisher bekannten Ausgestaltungen ist.and the tower is larger than in the previously known designs.

In Fig. 3, die Darstellung des Querschnitts an verschiedenen Orten des Blatts ist, wird deutlich, daß die am weitesten nach Luv weisenden Punkte der Blattunterseite immer im wesentlichen den gleichen Abstand von der Blattachse 12 haben.In Fig. 3, which is a representation of the cross-section at different locations on the blade, it is clear that the points on the underside of the blade pointing furthest to windward always have essentially the same distance from the blade axis 12.

Claims (1)

Rotorblatt für eine Windkraftanlage, dadurch gekennzeichnet, daß in nicht-belastetem Zustand der Abstand der am weitesten nach Luv weisenden Punkte der Blattunterseite (10) von der Blattachse (12) an jeder Stelle des Blattes mindestens so groß wie an der Blattwurzel (14) ist. Rotor blade for a wind turbine, characterized in that in the unloaded state the distance of the points of the blade underside ( 10 ) pointing furthest to windward from the blade axis ( 12 ) is at least as large at every point on the blade as at the blade root ( 14 ).
DE20120324U 2001-12-15 2001-12-15 Rotor blade for a wind turbine Expired - Lifetime DE20120324U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20120324U DE20120324U1 (en) 2001-12-15 2001-12-15 Rotor blade for a wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20120324U DE20120324U1 (en) 2001-12-15 2001-12-15 Rotor blade for a wind turbine

Publications (1)

Publication Number Publication Date
DE20120324U1 true DE20120324U1 (en) 2002-09-19

Family

ID=7965214

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20120324U Expired - Lifetime DE20120324U1 (en) 2001-12-15 2001-12-15 Rotor blade for a wind turbine

Country Status (1)

Country Link
DE (1) DE20120324U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003060319A1 (en) * 2002-01-18 2003-07-24 Aloys Wobben Wind turbine blade root spacer for increasing the separation of the blade tip from the tower
DE102006053712A1 (en) * 2006-11-15 2008-05-21 Nordex Energy Gmbh Rotor blade and wind turbine
EP2728170A2 (en) 2012-10-31 2014-05-07 Envision Energy (Denmark) ApS Wind turbine blade with an offset suction side
EP1596063B1 (en) 2004-05-11 2016-09-28 Senvion GmbH Wind turbine with bent rotor blades

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003060319A1 (en) * 2002-01-18 2003-07-24 Aloys Wobben Wind turbine blade root spacer for increasing the separation of the blade tip from the tower
EP1596063B1 (en) 2004-05-11 2016-09-28 Senvion GmbH Wind turbine with bent rotor blades
DE102006053712A1 (en) * 2006-11-15 2008-05-21 Nordex Energy Gmbh Rotor blade and wind turbine
EP1923567A2 (en) 2006-11-15 2008-05-21 Nordex Energy GmbH Rotor blade and wind turbine
US7832985B2 (en) 2006-11-15 2010-11-16 Nordex Energy Gmbh Rotor blade and wind energy plant
EP2728170A2 (en) 2012-10-31 2014-05-07 Envision Energy (Denmark) ApS Wind turbine blade with an offset suction side
US9982654B2 (en) 2012-10-31 2018-05-29 Envision Energy (Denmark) Aps Wind turbine with an offset suction side

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20021024

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20050202

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20080124

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20100120

R071 Expiry of right
R071 Expiry of right