WO2011039717A3 - A wind turbine - Google Patents

A wind turbine Download PDF

Info

Publication number
WO2011039717A3
WO2011039717A3 PCT/IB2010/054402 IB2010054402W WO2011039717A3 WO 2011039717 A3 WO2011039717 A3 WO 2011039717A3 IB 2010054402 W IB2010054402 W IB 2010054402W WO 2011039717 A3 WO2011039717 A3 WO 2011039717A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
vanes
wind turbine
axis
define
Prior art date
Application number
PCT/IB2010/054402
Other languages
French (fr)
Other versions
WO2011039717A2 (en
Inventor
Reginald Friedenthal
Original Assignee
Rural Property Generation Services (Proprietary) Limited
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 Rural Property Generation Services (Proprietary) Limited filed Critical Rural Property Generation Services (Proprietary) Limited
Publication of WO2011039717A2 publication Critical patent/WO2011039717A2/en
Publication of WO2011039717A3 publication Critical patent/WO2011039717A3/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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F05B2240/202—Rotors with adjustable area of intercepted fluid
    • 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
    • F05B2240/215—Rotors for wind turbines with vertical axis of the panemone or "vehicle ventilator" 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
    • F05B2250/00—Geometry
    • F05B2250/70—Shape
    • F05B2250/71—Shape curved
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • 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
    • F05B2270/00—Control
    • F05B2270/40—Type of control system
    • F05B2270/402—Type of control system passive or reactive, e.g. using large wind vanes
    • 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
    • F05B2270/00—Control
    • F05B2270/50—Control logic embodiment by
    • F05B2270/508—Control logic embodiment by mechanical means, e.g. levers, gears or cams
    • 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

The invention relates to a wind turbine. The turbine includes a rotor, having an operatively vertical rotor axis, and a plurality of vanes circumferentially spaced about the rotor axis and pivotally mounted to the rotor to pivot about a pivot axis parallel to the rotor axis, each between a closed position and a fully open position. The wind turbine includes displacement means for pivotally displacing the vanes into their closed positions above a threshold rotational speed of the wind turbine. Each vane defines two opposite ends at spaced apart positions on its pivot axis and arches outwardly between the ends to define a convex inner surface. In the closed position, the vanes, in combination, define a peripheral shell. Through pivotal displacement of the vanes towards their fully open positions, their inner surfaces are exposed for receiving wind thrust for exerting torque on the rotor for rotating it.
PCT/IB2010/054402 2009-09-29 2010-09-29 A wind turbine WO2011039717A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2009/06757 2009-09-29
ZA200906757 2009-09-29

Publications (2)

Publication Number Publication Date
WO2011039717A2 WO2011039717A2 (en) 2011-04-07
WO2011039717A3 true WO2011039717A3 (en) 2011-11-10

Family

ID=43826727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/054402 WO2011039717A2 (en) 2009-09-29 2010-09-29 A wind turbine

Country Status (1)

Country Link
WO (1) WO2011039717A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2011508A3 (en) * 2011-08-17 2013-04-17 Aerodynamic Wind Machines S.R.O. Wind turbine with vertical rotational axis
GB201122210D0 (en) * 2011-12-22 2012-02-01 Curtis Brian Electricity generating apparatus
ITRM20120496A1 (en) * 2012-10-16 2014-04-17 Agenzia Naz Per Le Nuove Tecn Ologie L Ener VERTICAL AXLE GENERATOR WITH AMPLIFIED RESISTANCE.
FR3008743B1 (en) * 2013-07-18 2015-08-21 Verteole WINDMILL COMPRISING AN ORIENTABLE BLADE SYSTEM
FR3041709B1 (en) * 2015-09-30 2020-06-19 Verteole WIND TURBINE WITH ADJUSTABLE BLADES DELIMING A CLOSED SURFACE AND OVERLAPPING IN A FOLDED CONFIGURATION

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721450A1 (en) * 1977-05-12 1978-11-16 Erich Herter Wind turbine for operating electrical generator - has crown of blades on vertical rotor which are hollow body curved segments
FR2472678A1 (en) * 1979-12-28 1981-07-03 Villebrun Expl Ets Savoy Confo Vertical shaft for electricity generation rotor - has spring biassed part cylindrical blades providing speed control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721450A1 (en) * 1977-05-12 1978-11-16 Erich Herter Wind turbine for operating electrical generator - has crown of blades on vertical rotor which are hollow body curved segments
FR2472678A1 (en) * 1979-12-28 1981-07-03 Villebrun Expl Ets Savoy Confo Vertical shaft for electricity generation rotor - has spring biassed part cylindrical blades providing speed control

Also Published As

Publication number Publication date
WO2011039717A2 (en) 2011-04-07

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