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CA2425447A1 - Wind turbine blade unit - Google Patents

Wind turbine blade unit

Info

Publication number
CA2425447A1
CA2425447A1 CA 2425447 CA2425447A CA2425447A1 CA 2425447 A1 CA2425447 A1 CA 2425447A1 CA 2425447 CA2425447 CA 2425447 CA 2425447 A CA2425447 A CA 2425447A CA 2425447 A1 CA2425447 A1 CA 2425447A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
rotor
blade
unit
hub
wind
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.)
Granted
Application number
CA 2425447
Other languages
French (fr)
Other versions
CA2425447C (en )
Inventor
Michel J. L. Auclair
Original Assignee
Michel J. L. Auclair
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

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially in wind direction
    • F03D1/06Rotors
    • F03D1/0608Rotors characterised by their form
    • F03D1/0633Rotors characterised by their form of the blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
    • F05B2240/00Components
    • F05B2240/20Rotors
    • F05B2240/30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GASES [GHG] EMISSION, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • Y02E10/721Blades or rotors

Abstract

A blade unit assembly for applications such as wind turbines, characterized by the arrangement of a main airfoil and a smaller secondary airfoil joined by streamlined structural elements, is mounted on a rotor hub assembly using a holding spar extending from the main airfoil. The blade unit is balanced and can pivot about its holding spar longitudinal axis, and has aerodynamic static and dynamic stability that provides the blade unit with pitch angle self-adjustment capability for controlling the wind turbine rotor hub rotation speed, for initiating rotor rotation in low winds, and for limiting the rotor blades speed in high winds. A plurality of blade units is mounted on a rotor hub.
CA 2425447 2003-04-17 2003-04-17 Wind turbine blade unit Active CA2425447C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2425447 CA2425447C (en) 2003-04-17 2003-04-17 Wind turbine blade unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2425447 CA2425447C (en) 2003-04-17 2003-04-17 Wind turbine blade unit

Publications (2)

Publication Number Publication Date
CA2425447A1 true true CA2425447A1 (en) 2004-10-17
CA2425447C CA2425447C (en) 2006-03-14

Family

ID=33163757

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2425447 Active CA2425447C (en) 2003-04-17 2003-04-17 Wind turbine blade unit

Country Status (1)

Country Link
CA (1) CA2425447C (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105174A1 (en) 2006-03-14 2007-09-20 Tecsis Tecnologia E Sistemas Avançados Ltda Multi-element blade with aerodynamic profiles
EP2107235A1 (en) * 2008-04-02 2009-10-07 Lm Glasfiber A/S A wind turbine blade with an auxiliary airfoil
WO2009146810A2 (en) * 2008-06-03 2009-12-10 Siegfried Mickeler Rotor blade for a wind power plant and wind power plant
US20100329879A1 (en) * 2009-06-03 2010-12-30 Presz Jr Walter M Wind turbine blades with mixer lobes
US20110064582A1 (en) * 2008-05-30 2011-03-17 Ignacio Romero Sanz Wind turbine blade with high-lift devices
WO2010133649A3 (en) * 2009-05-19 2011-04-07 Vestas Wind Systems A/S A wind turbine and a blade for a wind turbine
WO2011134985A1 (en) * 2010-04-27 2011-11-03 Lm Glasfiber A/S Wind turbine blade provided with a slat assembly
CN102434384A (en) * 2011-11-11 2012-05-02 张向增 Novel composite material blade of horizontal shaft wind generating set
EP2078852A3 (en) * 2008-01-11 2013-01-02 Siemens Aktiengesellschaft Wind turbine rotor blade
CN103133237A (en) * 2011-11-21 2013-06-05 通用电气公司 Blade extension for rotor blade in wind turbine
WO2014006542A3 (en) * 2012-07-05 2014-03-27 Nelson Mandela Metropolitan University Turbine arrangement
WO2014113888A1 (en) * 2013-01-22 2014-07-31 Distributed Thermal Systems Ltd. Multiple airfoil wind turbine blade assembly
WO2015171349A1 (en) * 2014-05-08 2015-11-12 Siemens Aktiengesellschaft Soiling shield for wind turbine blade
US20170022967A1 (en) * 2015-07-21 2017-01-26 Winnova Energy LLC System and method for improving efficiency of turbine airfoils
WO2017076096A1 (en) * 2015-11-03 2017-05-11 周方 Reinforced blade for wind-driven generator

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8647063B2 (en) 2006-03-14 2014-02-11 Tecsis Tecnologia Sistemas Avançados S.A. Multi-element blade with aerodynamic profiles
WO2007105174A1 (en) 2006-03-14 2007-09-20 Tecsis Tecnologia E Sistemas Avançados Ltda Multi-element blade with aerodynamic profiles
EP2078852A3 (en) * 2008-01-11 2013-01-02 Siemens Aktiengesellschaft Wind turbine rotor blade
EP2107235A1 (en) * 2008-04-02 2009-10-07 Lm Glasfiber A/S A wind turbine blade with an auxiliary airfoil
WO2009121927A1 (en) * 2008-04-02 2009-10-08 Lm Glasfiber A/S A wind turbine blade with an auxiliary airfoil
US8834130B2 (en) 2008-04-02 2014-09-16 Peter Fuglsang Wind turbine blade with an auxiliary airfoil
CN102046965B (en) 2008-04-02 2013-04-17 Lm玻璃纤维制品有限公司 A wind turbine blade with an auxiliary airfoil
US20110064582A1 (en) * 2008-05-30 2011-03-17 Ignacio Romero Sanz Wind turbine blade with high-lift devices
WO2009146810A3 (en) * 2008-06-03 2010-11-11 Siegfried Mickeler Rotor blade for a wind power plant and wind power plant
WO2009146810A2 (en) * 2008-06-03 2009-12-10 Siegfried Mickeler Rotor blade for a wind power plant and wind power plant
US9200614B2 (en) 2009-05-19 2015-12-01 Vestas Wind Systems A/S Wind turbine and a blade for a wind turbine
WO2010133649A3 (en) * 2009-05-19 2011-04-07 Vestas Wind Systems A/S A wind turbine and a blade for a wind turbine
CN102459874A (en) * 2009-05-19 2012-05-16 维斯塔斯风力系统集团公司 A wind turbine and a blade for a wind turbine
CN102459874B (en) 2009-05-19 2014-06-04 维斯塔斯风力系统集团公司 A wind turbine and a blade for a wind turbine
US20100329879A1 (en) * 2009-06-03 2010-12-30 Presz Jr Walter M Wind turbine blades with mixer lobes
WO2011134985A1 (en) * 2010-04-27 2011-11-03 Lm Glasfiber A/S Wind turbine blade provided with a slat assembly
CN102434384A (en) * 2011-11-11 2012-05-02 张向增 Novel composite material blade of horizontal shaft wind generating set
CN103133237A (en) * 2011-11-21 2013-06-05 通用电气公司 Blade extension for rotor blade in wind turbine
CN103133237B (en) * 2011-11-21 2017-01-18 通用电气公司 A blade extension portion of the rotor blade of the wind turbine
WO2014006542A3 (en) * 2012-07-05 2014-03-27 Nelson Mandela Metropolitan University Turbine arrangement
WO2014113888A1 (en) * 2013-01-22 2014-07-31 Distributed Thermal Systems Ltd. Multiple airfoil wind turbine blade assembly
WO2015171349A1 (en) * 2014-05-08 2015-11-12 Siemens Aktiengesellschaft Soiling shield for wind turbine blade
US20170022967A1 (en) * 2015-07-21 2017-01-26 Winnova Energy LLC System and method for improving efficiency of turbine airfoils
WO2017076096A1 (en) * 2015-11-03 2017-05-11 周方 Reinforced blade for wind-driven generator

Also Published As

Publication number Publication date Type
CA2425447C (en) 2006-03-14 grant

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