ES439834A1 - Wind turbine - Google Patents

Wind turbine

Info

Publication number
ES439834A1
ES439834A1 ES439834A ES439834A ES439834A1 ES 439834 A1 ES439834 A1 ES 439834A1 ES 439834 A ES439834 A ES 439834A ES 439834 A ES439834 A ES 439834A ES 439834 A1 ES439834 A1 ES 439834A1
Authority
ES
Spain
Prior art keywords
wind
blade
wind turbine
velocity ratio
drive rotor
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
Application number
ES439834A
Other languages
Spanish (es)
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.)
US Department of Energy
Energy Research and Development Administration ERDA
Original Assignee
US Department of Energy
Energy Research and Development Administration ERDA
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 US Department of Energy, Energy Research and Development Administration ERDA filed Critical US Department of Energy
Publication of ES439834A1 publication Critical patent/ES439834A1/en
Expired 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
    • 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
    • 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
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/212—Rotors for wind turbines with vertical axis of the Darrieus 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
    • F05B2240/21—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
    • 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)

Abstract

A wind turbine rotatable about a shaft may include a drive rotor with one or more elongated blades each having a central outwardly curved portion of airfoil shape which produces rotary motion when the blade rotates in wind at a blade tip velocity to wind velocity ratio greater than about three or four, additional wind rotor means disposed at both ends of the curved portions of the elongated blade for rotatably accelerating the drive rotor to the desired velocity ratio, and means coupled to said rotors for utilizing the rotation thereof.
ES439834A 1974-09-20 1975-07-30 Wind turbine Expired ES439834A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US508016A US3918839A (en) 1974-09-20 1974-09-20 Wind turbine

Publications (1)

Publication Number Publication Date
ES439834A1 true ES439834A1 (en) 1977-04-16

Family

ID=24021039

Family Applications (1)

Application Number Title Priority Date Filing Date
ES439834A Expired ES439834A1 (en) 1974-09-20 1975-07-30 Wind turbine

Country Status (12)

Country Link
US (1) US3918839A (en)
JP (1) JPS5166951A (en)
AU (1) AU8502675A (en)
BE (1) BE833581A (en)
CA (1) CA1042347A (en)
DE (1) DE2540757A1 (en)
ES (1) ES439834A1 (en)
FR (1) FR2285527A1 (en)
IT (1) IT1049691B (en)
NL (1) NL7508723A (en)
NO (1) NO753023L (en)
SE (1) SE7509005L (en)

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DE4334910A1 (en) * 1993-10-13 1995-04-20 Hans Erich Gunder Rotary (rotating) wing with aerodynamic or hydrodynamic drive and output (performance) control
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CN104879272B (en) * 2015-05-20 2018-02-09 上海交通大学 Change the vertical axis windmill camber blades of line with novel changable base
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US11231084B2 (en) * 2017-12-12 2022-01-25 Martin W. Stryker Foldable flywheel mechanism to facilitate energy generation
US10975839B2 (en) * 2018-05-23 2021-04-13 William Olen Fortner Vertical axis wind turbines with V-cup shaped vanes, multi-turbine assemblies and related methods and systems
JP6449509B1 (en) 2018-06-08 2019-01-09 株式会社グローバルエナジー Vertical axis wind turbine, its vertically long blade and wind power generator
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US11313348B2 (en) 2019-04-17 2022-04-26 University Of Maryland, Baltimore County Hybrid vertical axis turbine apparatus
US11859716B2 (en) 2019-04-17 2024-01-02 University Of Maryland, Baltimore County Time-delay closed-loop control of an infinitely variable transmission system for tidal current energy converters
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Also Published As

Publication number Publication date
NO753023L (en) 1976-03-23
AU8502675A (en) 1977-03-24
FR2285527A1 (en) 1976-04-16
JPS5166951A (en) 1976-06-10
IT1049691B (en) 1981-02-10
FR2285527B3 (en) 1978-05-05
US3918839A (en) 1975-11-11
BE833581A (en) 1976-01-16
CA1042347A (en) 1978-11-14
NL7508723A (en) 1976-03-23
DE2540757A1 (en) 1976-04-08
SE7509005L (en) 1976-03-22

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