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GR1008803B - Wind generator's blades - Google Patents

Wind generator's blades

Info

Publication number
GR1008803B
GR1008803B GR20100100474A GR20100100474A GR1008803B GR 1008803 B GR1008803 B GR 1008803B GR 20100100474 A GR20100100474 A GR 20100100474A GR 20100100474 A GR20100100474 A GR 20100100474A GR 1008803 B GR1008803 B GR 1008803B
Authority
GR
Greece
Prior art keywords
blades
wind generator
semi
spherical cavities
wind
Prior art date
Application number
GR20100100474A
Other languages
Greek (el)
Other versions
GR20100100474A (en
Inventor
Εμμανουηλ Δημητριου Μιχαλης
Θεοδωρος Ιωαννη Τουλας
Original Assignee
Εμμανουηλ Δημητριου Μιχαλης
Θεοδωρος Ιωαννη Τουλας
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 Εμμανουηλ Δημητριου Μιχαλης, Θεοδωρος Ιωαννη Τουλας filed Critical Εμμανουηλ Δημητριου Μιχαλης
Priority to GR20100100474A priority Critical patent/GR1008803B/en
Priority to PCT/GR2011/000033 priority patent/WO2012028890A1/en
Priority to CN2011800266921A priority patent/CN102918263A/en
Publication of GR20100100474A publication Critical patent/GR20100100474A/en
Publication of GR1008803B publication Critical patent/GR1008803B/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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • 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
    • 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
    • F05B2240/32—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor with roughened surface
    • 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
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/24—Geometry three-dimensional ellipsoidal
    • F05B2250/241—Geometry three-dimensional ellipsoidal spherical
    • 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
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/28—Geometry three-dimensional patterned
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

Novelty: wind generator΄s blades. Technical features: the blades (2) in question are characterised in that they are furnished with semi-spherical cavities (3) placed in series and alternatively lengthwise the blades surface. Due to these semi-spherical cavities said blades are in position to actively manage their released air mass what leads to their smoother and more stable rotation and, thereby, to a more qualitative, reliable, economical and noiseless operation of the wind generator; faster rotation of blades (more revs per minute) and more power production can be obtained, to a great extent,by the expansion of the difference of wind pressure exerted on the two sides of the blades.
GR20100100474A 2010-09-01 2010-09-01 Wind generator's blades GR1008803B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GR20100100474A GR1008803B (en) 2010-09-01 2010-09-01 Wind generator's blades
PCT/GR2011/000033 WO2012028890A1 (en) 2010-09-01 2011-08-10 Wind turbine blades with dimples
CN2011800266921A CN102918263A (en) 2010-09-01 2011-08-10 Wind turbine blade with grooves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20100100474A GR1008803B (en) 2010-09-01 2010-09-01 Wind generator's blades

Publications (2)

Publication Number Publication Date
GR20100100474A GR20100100474A (en) 2012-04-30
GR1008803B true GR1008803B (en) 2016-07-01

Family

ID=44534493

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20100100474A GR1008803B (en) 2010-09-01 2010-09-01 Wind generator's blades

Country Status (3)

Country Link
CN (1) CN102918263A (en)
GR (1) GR1008803B (en)
WO (1) WO2012028890A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013020115A2 (en) 2011-08-04 2013-02-07 Milwaukee Electric Tool Corporation Reciprocating saw blade
USD688543S1 (en) 2012-03-20 2013-08-27 Milwaukee Electric Tool Corporation Saw blade
IES86162B2 (en) * 2012-08-09 2013-03-27 New World Energy Entpr Ltd Aerofoil blades
DE102014104466A1 (en) * 2014-03-28 2015-10-01 Rainer Marquardt Wind turbine for rooftops
USD729600S1 (en) 2014-05-06 2015-05-19 Milwaukee Electric Tool Corporation Saw blade
US10539157B2 (en) 2015-04-08 2020-01-21 Horton, Inc. Fan blade surface features
CN105089924A (en) * 2015-08-26 2015-11-25 陈海花 Electric generator blade
NL1041491B1 (en) * 2015-09-25 2017-04-19 Home Turbine B V Device for converting wind energy into at least mechanical energy.
WO2017052371A1 (en) * 2015-09-21 2017-03-30 Home Turbine B.V. Device for converting wind energy into at least mechanical energy
ES2844592T3 (en) 2017-05-05 2021-07-22 Nordex Energy Se & Co Kg Silent rotor blade tip
CN109386426A (en) * 2017-08-09 2019-02-26 新疆工程学院 The pneumatic equipment bladess and wind energy conversion system of a kind of linear micro- cavernous structure of trailing edge
CN109386425A (en) * 2017-08-09 2019-02-26 新疆工程学院 The pneumatic equipment bladess and wind energy conversion system of a kind of linear micro- cavernous structure of blade inlet edge
EP4283114A1 (en) * 2022-05-26 2023-11-29 Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie Wind turbine with horizontal rotation axis of a rotor
CN116753111A (en) * 2023-08-11 2023-09-15 南京永乐照明灯饰有限公司 Composite wind power generation blade with stable speed increasing and high efficiency

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872484A (en) * 1988-12-12 1989-10-10 John Hickey System for controlling the flow of a fluid medium relative to an object
DE10301080A1 (en) * 2002-10-22 2004-05-13 Siemens Ag Wind turbine
EP1469198A1 (en) * 2003-04-17 2004-10-20 Eugen Radtke Wind energy converter with lift improving surface structure.
US7344353B2 (en) * 2005-05-13 2008-03-18 Arrowind Corporation Helical wind turbine
US7604461B2 (en) * 2005-11-17 2009-10-20 General Electric Company Rotor blade for a wind turbine having aerodynamic feature elements
CA2631416A1 (en) * 2005-12-05 2007-06-14 Lm Glasfiber A/S Blade for a wind turbine rotor
EP2031241A1 (en) * 2007-08-29 2009-03-04 Lm Glasfiber A/S Blade for a rotor of a wind turbine provided with barrier generating means

Also Published As

Publication number Publication date
GR20100100474A (en) 2012-04-30
WO2012028890A1 (en) 2012-03-08
CN102918263A (en) 2013-02-06

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Legal Events

Date Code Title Description
PG Patent granted

Effective date: 20160906