WO2008088921A3 - Vertical windmills and methods of operating the same - Google Patents

Vertical windmills and methods of operating the same Download PDF

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Publication number
WO2008088921A3
WO2008088921A3 PCT/US2008/000847 US2008000847W WO2008088921A3 WO 2008088921 A3 WO2008088921 A3 WO 2008088921A3 US 2008000847 W US2008000847 W US 2008000847W WO 2008088921 A3 WO2008088921 A3 WO 2008088921A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
operating
same
vertical
airfoil
Prior art date
Application number
PCT/US2008/000847
Other languages
French (fr)
Other versions
WO2008088921A2 (en
Inventor
Larry Frew
Raymond Browning
William B Goldsworthy
Original Assignee
Gift Technologies Lp
Goldsworthy Lois
Larry Frew
Raymond Browning
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 Gift Technologies Lp, Goldsworthy Lois, Larry Frew, Raymond Browning filed Critical Gift Technologies Lp
Publication of WO2008088921A2 publication Critical patent/WO2008088921A2/en
Publication of WO2008088921A3 publication Critical patent/WO2008088921A3/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 
    • F03D3/06—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
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
    • 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
    • Y02E10/728—Onshore wind turbines
    • 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)
  • 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)

Abstract

A vertical windmill is provided including airfoils each having a leading edge, a trailing edge, a first surface between the leading edge and the trailing edge and a second surface between the leading edge and the trailing edge, where a thickness of each airfoil is defined between the two surfaces of each airfoil, and where each airfoil is symmetric about a plane intersecting both surfaces. Methods for operating vertical windmills are also provided.
PCT/US2008/000847 2007-01-19 2008-01-22 Vertical windmills and methods of operating the same WO2008088921A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88124607P 2007-01-19 2007-01-19
US60/881,246 2007-01-19

Publications (2)

Publication Number Publication Date
WO2008088921A2 WO2008088921A2 (en) 2008-07-24
WO2008088921A3 true WO2008088921A3 (en) 2008-10-09

Family

ID=39636611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/000847 WO2008088921A2 (en) 2007-01-19 2008-01-22 Vertical windmills and methods of operating the same

Country Status (1)

Country Link
WO (1) WO2008088921A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2556244B1 (en) * 2010-01-14 2014-05-21 Daniel P. Coffey Wind energy conversion device
WO2011160688A1 (en) * 2010-06-23 2011-12-29 Lightyears Holding Ag Wind turbine
WO2014043507A1 (en) * 2012-09-13 2014-03-20 Martin Epstein Vertical axis wind turbine with cambered airfoil blades
ITCS20130015A1 (en) * 2013-06-05 2014-12-05 Corrado Chiappetta BODY ELEMENT WITH ENERGY DEVICE FOR MOBILE VEHICLES
US9293972B2 (en) 2013-12-06 2016-03-22 General Electric Company Apparatus for forming insulation for electrical components

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US189146A (en) * 1877-04-03 Improvement in windmills
US4162410A (en) * 1977-11-30 1979-07-24 Amick James L Vertical-axis windmill
US5380149A (en) * 1990-05-31 1995-01-10 Valsamidis; Michael Wind turbine cross wind machine
US5463257A (en) * 1993-11-23 1995-10-31 Yea; Ton A. Wind power machine
US6364609B1 (en) * 2000-05-01 2002-04-02 Robert J. Barnes Wind turbine having ground winch pivot erection support structure
US20060257240A1 (en) * 2005-05-13 2006-11-16 Naskali Pertti H Helical wind turbine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US189146A (en) * 1877-04-03 Improvement in windmills
US4162410A (en) * 1977-11-30 1979-07-24 Amick James L Vertical-axis windmill
US5380149A (en) * 1990-05-31 1995-01-10 Valsamidis; Michael Wind turbine cross wind machine
US5463257A (en) * 1993-11-23 1995-10-31 Yea; Ton A. Wind power machine
US6364609B1 (en) * 2000-05-01 2002-04-02 Robert J. Barnes Wind turbine having ground winch pivot erection support structure
US20060257240A1 (en) * 2005-05-13 2006-11-16 Naskali Pertti H Helical wind turbine

Also Published As

Publication number Publication date
WO2008088921A2 (en) 2008-07-24

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