WO2013114402A3 - Vertical axis wind turbine with a variable rotor diameter - Google Patents

Vertical axis wind turbine with a variable rotor diameter Download PDF

Info

Publication number
WO2013114402A3
WO2013114402A3 PCT/IN2013/000048 IN2013000048W WO2013114402A3 WO 2013114402 A3 WO2013114402 A3 WO 2013114402A3 IN 2013000048 W IN2013000048 W IN 2013000048W WO 2013114402 A3 WO2013114402 A3 WO 2013114402A3
Authority
WO
WIPO (PCT)
Prior art keywords
wind
wind turbine
threaded part
vertical axis
turbine
Prior art date
Application number
PCT/IN2013/000048
Other languages
French (fr)
Other versions
WO2013114402A2 (en
Inventor
Prakash Prabhakar Pawar
Original Assignee
Prakash Prabhakar Pawar
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 Prakash Prabhakar Pawar filed Critical Prakash Prabhakar Pawar
Publication of WO2013114402A2 publication Critical patent/WO2013114402A2/en
Publication of WO2013114402A3 publication Critical patent/WO2013114402A3/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
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/064—Fixing wind engaging parts to rest of rotor
    • 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
    • F03D7/0276—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
    • 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

Abstract

The present invention relates vertical-axis wind turbine with variable circumference of its blades and methods of using same are provided for efficiently generating electrical power. IT provides a wind turbine with vertical axis having variable circumference of blades comprising, sleeve (02), helical gears (04), anemometer (06), threaded part (08), screw type arm (10), independent shaft (12), hollow shaft (14), wind catching elements (16), motor (18), alternator (20), arms (22) and differential gear box (24) wherein said anemometer (06) takes the readings as wind velocity increases and accordingly said motor (18) drives said independent shaft (12) to rotate said screw type arm (10) and upon their rotation, the threaded part (08) moves outwards and the wind catching element (16) also move simultaneously because it is fitted to said threaded part (08) and further when wind catching elements (16) moves outwards, the circumference increases because of which the rpm of the turbine is maintained as per desired value even if wind velocity increases.
PCT/IN2013/000048 2012-02-01 2013-01-23 Variable circumferance of blades for vertical axis wind turbine WO2013114402A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2175MU2011 2012-02-01
IN2175/MUM/2011 2012-02-01

Publications (2)

Publication Number Publication Date
WO2013114402A2 WO2013114402A2 (en) 2013-08-08
WO2013114402A3 true WO2013114402A3 (en) 2013-10-10

Family

ID=48430890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2013/000048 WO2013114402A2 (en) 2012-02-01 2013-01-23 Variable circumferance of blades for vertical axis wind turbine

Country Status (1)

Country Link
WO (1) WO2013114402A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1319174A (en) * 1919-10-21 Windmill
DE2821899A1 (en) * 1978-05-19 1979-11-22 Erich Herter Wind driven power generator - has mast with horizontal rotor arms holding radially adjustable blades via cables
US6320273B1 (en) * 2000-02-12 2001-11-20 Otilio Nemec Large vertical-axis variable-pitch wind turbine
EP1327773A2 (en) * 2002-01-10 2003-07-16 Mitsubishi Heavy Industries, Ltd. Wind turbine with active blade swept area control
WO2008156407A1 (en) * 2007-06-19 2008-12-24 Claes Aldman Unity wind power plant with vertical axis of rotation
US20100172759A1 (en) * 2009-01-08 2010-07-08 Sullivan John T Retractable wind turbines
US20100196159A1 (en) * 2009-02-04 2010-08-05 Frontier Wind, Llc Mass-Centralizing Blade Extension Drive Mount Locations for a Wind Turbine
WO2011105970A2 (en) * 2010-02-25 2011-09-01 Bortel Milos Wind generator with vertical rotation axis, in particular for mobile applications

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1319174A (en) * 1919-10-21 Windmill
DE2821899A1 (en) * 1978-05-19 1979-11-22 Erich Herter Wind driven power generator - has mast with horizontal rotor arms holding radially adjustable blades via cables
US6320273B1 (en) * 2000-02-12 2001-11-20 Otilio Nemec Large vertical-axis variable-pitch wind turbine
EP1327773A2 (en) * 2002-01-10 2003-07-16 Mitsubishi Heavy Industries, Ltd. Wind turbine with active blade swept area control
WO2008156407A1 (en) * 2007-06-19 2008-12-24 Claes Aldman Unity wind power plant with vertical axis of rotation
US20100172759A1 (en) * 2009-01-08 2010-07-08 Sullivan John T Retractable wind turbines
US20100196159A1 (en) * 2009-02-04 2010-08-05 Frontier Wind, Llc Mass-Centralizing Blade Extension Drive Mount Locations for a Wind Turbine
WO2011105970A2 (en) * 2010-02-25 2011-09-01 Bortel Milos Wind generator with vertical rotation axis, in particular for mobile applications

Also Published As

Publication number Publication date
WO2013114402A2 (en) 2013-08-08

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