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DK177659B1 - Noise reducer for rotor blade in wind turbine - Google Patents

Noise reducer for rotor blade in wind turbine Download PDF

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Publication number
DK177659B1
DK177659B1 DK201170620A DKPA201170620A DK177659B1 DK 177659 B1 DK177659 B1 DK 177659B1 DK 201170620 A DK201170620 A DK 201170620A DK PA201170620 A DKPA201170620 A DK PA201170620A DK 177659 B1 DK177659 B1 DK 177659B1
Authority
DK
Denmark
Prior art keywords
rotor blade
blade assembly
blade
length
serrations
Prior art date
Application number
DK201170620A
Other languages
English (en)
Inventor
Roger Drobietz
Kevin Wayne Kinzie
Klaus Ulrich Koegler
Murray Fisher
Jamie Livingston
Original Assignee
Gen Electric
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44143146&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK177659(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gen Electric filed Critical Gen Electric
Publication of DK201170620A publication Critical patent/DK201170620A/da
Application granted granted Critical
Publication of DK177659B1 publication Critical patent/DK177659B1/en

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
    • F03D1/0675—Rotors characterised by their construction elements 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
    • 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
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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)
  • 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)

Claims (11)

1. Vingeaggregat (100) til en vindmølle (10), indbefattende: en vinge (16) med overflader, der definerer en trykside (22), en sugeside (24), 5 en forkant (26) og en bagkant (28) strækkende sig mellem en spids (32) og en rod (34), hvilken vinge (16) yderligere definerer en pitch-akse (40), og en støjmindsker (110) konfigureret på en overflade af vingen (16), hvilken støj mindsker (110) indbefatter flere takker (112), hvor hver af de flere takker (112) definerer en centerlinje (128), 10 hvor centerlinj en (128) af hver af de flere takker (112) er i området mellem omtrent 10 grader fra vinkelret på pitch-aksen (40) og omtrent vinkelret på pitch-aksen (40).
2. Vingeaggregat (100) ifølge krav 1, hvor et tværsnit af hver af de flere 15 takker (112) er omtrent parallelt med en lokal strømningslinje (130,132) defineret for den tak, og hvor hver af de flere takker (112) er individuelt orienteret baseret på centerlinjen (128) og med hensyn til den lokale strømningslinje (130, 132), tværsnittet og en spændmæssig placering af den tak.
3. Vingeaggregat (100) ifølge et hvilket som helst af kravene 1-2, hvor hver af de flere takker (112) definerer en bredde (120) og en længde (124), og hvor hver af de flere takker (112) har et længde-bredde-forhold i området mellem omtrent 0,5:1 og omtrent 4:1. 13 DK 177659 B1
4. Vingeaggregat (100) ifølge et hvilket som helst af kravene 1 -3, hvor vingen (16) definerer en lokal korde (46) for hver af de flere takker (112), og hver af de flere takker (112) definerer en længde (124), hvor længden (124) af hver af de flere takker (112) er i området mellem omtrent 5% af den lokale korde (46) og omtrent 5 15% af den lokale korde (46).
5. Vingeaggregat (100) ifølge et hvilket som helst af kravene 1 -4, hvor hver af takkerne (112) definerer en tykkelse (140), og hvor tykkelsen (140) af hver af de flere takker (112) er i området mellem omtrent 0,1 millimeter og omtrent 2,5 10 millimeter.
6. Vingeaggregat (100) ifølge et hvilket som helst af kravene 1-5, hvor tykkelsen (140) af hver af de flere takker (112) er i området mellem omtrent 1 millimeter og omtrent 2 millimeter.
7. Vingeaggregat (100) ifølge et hvilket som helst af kravene 1-6, hvor støj mindskeren (110) er konfigureret på bagkanten (28) af vingen (16).
8. Vingeaggregat (100) ifølge krav 1-2, yderligere indbefattende et 20 rotomav (18), der definerer et centerpunkt (19), hvor vingen (16) strækker sig fra rotomavet (18), hvor der er defineret en linje (129) for hver af de flere takker (112) mellem centerlinjen (128) og hver af de flere takker (112) og centerpunktet (19) af rotomavet (18), og hvor centerlinjen (128) af hver af de flere takker (112) er i området 14 DK 177659 B1 mellem omtrent 10 grader fra vinkelret på linjen (129) og omtrent vinkelret på linjen (129).
9. Vingeaggregat (100) ifølge krav 8, hvor centerlinjen (128) af hver af 5 de flere takker (112) er omtrent vinkelret på linjen (129).
10. Vingeaggregat (100) ifølge et hvilket som helst af kravene 8-9, hvor hver af de flere takker (112) definerer en bredde (120) og en længde (124), og hvor hver af de flere takker (112) har et længde-bredde-forhold i området mellem omtrent 10 0,5:1 og omtrent 4:1.
11. Vingeaggregat (100) ifølge et hvilket som helst af kravene 8-10, hvor vingen (16) definerer en lokal korde (46) for hver af de flere takker (112), hvor hver af de flere takker (112) definerer en længde (124), og hvor længden (124) af hver af 15 de flere takker (112) er i området mellem omtrent 5% af den lokale korde (46) og omtrent 15% af den lokale korde (46). 15
DK201170620A 2010-11-15 2011-11-14 Noise reducer for rotor blade in wind turbine DK177659B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/946,259 US8523515B2 (en) 2010-11-15 2010-11-15 Noise reducer for rotor blade in wind turbine
US94625910 2010-11-15

Publications (2)

Publication Number Publication Date
DK201170620A DK201170620A (en) 2012-05-16
DK177659B1 true DK177659B1 (en) 2014-02-03

Family

ID=44143146

Family Applications (1)

Application Number Title Priority Date Filing Date
DK201170620A DK177659B1 (en) 2010-11-15 2011-11-14 Noise reducer for rotor blade in wind turbine

Country Status (4)

Country Link
US (1) US8523515B2 (da)
CN (1) CN102465828B (da)
DE (1) DE102011055327B4 (da)
DK (1) DK177659B1 (da)

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DE102011055327B4 (de) 2025-10-02
US20110142666A1 (en) 2011-06-16
US8523515B2 (en) 2013-09-03
CN102465828A (zh) 2012-05-23
DK201170620A (en) 2012-05-16
DE102011055327A1 (de) 2012-05-16
CN102465828B (zh) 2016-02-24

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