FR2814204A1 - Blade for wind turbine, has openings in blade section on forward face to allow wind into hollow section, with further nozzle shaped openings on rear face, with total area of inlet holes greater than area of outlet holes. - Google Patents

Blade for wind turbine, has openings in blade section on forward face to allow wind into hollow section, with further nozzle shaped openings on rear face, with total area of inlet holes greater than area of outlet holes. Download PDF

Info

Publication number
FR2814204A1
FR2814204A1 FR0011951A FR0011951A FR2814204A1 FR 2814204 A1 FR2814204 A1 FR 2814204A1 FR 0011951 A FR0011951 A FR 0011951A FR 0011951 A FR0011951 A FR 0011951A FR 2814204 A1 FR2814204 A1 FR 2814204A1
Authority
FR
France
Prior art keywords
blade
openings
wind
area
section
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
FR0011951A
Other languages
French (fr)
Other versions
FR2814204B1 (en
Inventor
Georges Boulisset
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR0011951A priority Critical patent/FR2814204B1/en
Priority to PCT/FR2001/002629 priority patent/WO2002025109A1/en
Priority to AU2001284148A priority patent/AU2001284148A1/en
Publication of FR2814204A1 publication Critical patent/FR2814204A1/en
Application granted granted Critical
Publication of FR2814204B1 publication Critical patent/FR2814204B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F03D15/00—Transmission of mechanical power
    • F03D15/05—Transmission of mechanical power using hollow exhausting blades
    • 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
    • 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

The hollow blade is provided with one or more openings (4), located in the front face (10) of the blade, to allow entry of the wind. It also has one or more openings (5) in the form of nozzles, in the rear face to allow exit. The total surface of the nozzle shaped exit holes is less than the total surface of the inlet holes, in order to create a pressure inside the blade, which generates a reaction to the output of the nozzles.

Description

<Desc/Clms Page number 1> <Desc / Clms Page number 1>

DESCRIPTION

Figure img00010001

La présente invention consiste à fabriquer des pa] es creuses pour les utiliser sur une éolienne. DESCRIPTION
Figure img00010001

The present invention consists in manufacturing hollow parts for use on a wind turbine.

Actuellement l'éolienne possède des pales (l) fixées sur un arbre (7) et inclinées par rapport à celui-ci.  Currently the wind turbine has blades (l) fixed on a shaft (7) and inclined relative to the latter.

C'est la pression du vent sur la face avant (lO) de ces pales qui les oblige à se déplacer entrainant l'arbre, sur lequel elles sont fixées, dans un mouvement circulaire producteur de travail. It is the pressure of the wind on the front face (lO) of these blades which forces them to move causing the shaft, on which they are fixed, in a circular movement producing work.

La présente invention consiste donc à utiliser des

Figure img00010002

pales creuses (8). Le vent pénètre à l'intèrieur de la pale par une ou plusieurs ouvertures (4) situées sur la face avant (10) de la pale et s'évacue par des trous (5) en forme de tuyère, situés dans le bord arrière (3) de la.'pate La surface totale des trous d'évacuation (5) étant inférieure à la surface totale des ouvertures d'entrée du vent, il se crée une pression à l'intèrieur (8) de la pale creuse qui cherche à s'évacuer par les tuyères (5) provoquant une réaction qui pousse la pale dans un sens de rotation (6) opposé aux tuyères ; sens de rotation par
Figure img00010003

ailleurs identique à celui provoqué par l'action du vent sur la face extérieure avant de la pale. The present invention therefore consists in using
Figure img00010002

hollow blades (8). The wind penetrates inside the blade through one or more openings (4) located on the front face (10) of the blade and is evacuated by holes (5) in the form of a nozzle, located in the rear edge ( 3) de.'pate The total surface of the evacuation holes (5) being less than the total surface of the wind inlet openings, it creates a pressure inside (8) of the hollow blade which seeks to be evacuated through the nozzles (5) causing a reaction which pushes the blade in a direction of rotation (6) opposite to the nozzles; direction of rotation by
Figure img00010003

elsewhere identical to that caused by the action of the wind on the outer front face of the blade.

Cette invention permet d'augmenter la vitesse de rotation de l'éolienne en ajoutant à la pression habi- tuelle du vent sur l'extèrieur des pales, la pression du vent à l'intèrieur des pales, provoquant une réaction à la sortie des tuyères (5). Ainsi, l'éolienne tournant plus vite produit plus de travail.

Figure img00010004
This invention makes it possible to increase the speed of rotation of the wind turbine by adding to the usual wind pressure on the outside of the blades, the wind pressure inside the blades, causing a reaction at the outlet of the nozzles. (5). Thus, the wind turbine rotating faster produces more work.
Figure img00010004

Si l'on utilise de grandes pales nécessitant des renforts intèrieurs, l'air devra circuler librement à l'intèrieur des pales entre les ouvertures d'entrée (4) et les tuyères (5). If large blades requiring internal reinforcements are used, air must circulate freely inside the blades between the inlet openings (4) and the nozzles (5).

Les dessins annexés illustrent l'invention : - la figure ? 1 représente la face extérieure avant d'une pale avec ici deux ouvertures d'entrée (4) duvent.  The accompanying drawings illustrate the invention: - the figure? 1 shows the outer front face of a blade with here two inlet openings (4) canopy.

- la figure N 2 représente la coupe longitudinale d'une pale avec des évacuations en forme de tuyère (5). - Figure N 2 shows the longitudinal section of a blade with nozzles in the form of a nozzle (5).

- la figure ? 3 représente la coupe transversale d'une pale à la hauteur d'une ouverture d'entée (4) du vent et d'une évacuation (tuyère) (5). - the figure ? 3 shows the cross section of a blade at the height of an inlet opening (4) for the wind and an outlet (nozzle) (5).

<Desc/Clms Page number 2><Desc / Clms Page number 2>

LEGENDE 1 Pale 2 Bord avant dela pale 3 Bord arrière de la pale 4 Ouverture (entrée du vent) 5 Trous en forme de tuyère 6 Sens de rotation 7 Arbre de rotation 8 Intérieur creux de la pale 9 Direction du vent 10 Face avant de la pale Il Face arrière de la pale 12 Expulsion de l'air par les tuyères FIG ? 1 : Face exterieure avant d'une pale FIG ? 2 Coupe longitudinale FIG ? 3 Coupe transversale LEGEND 1 Blade 2 Front edge of the blade 3 Rear edge of the blade 4 Opening (wind inlet) 5 Nozzles in the shape of a nozzle 6 Direction of rotation 7 Shaft of rotation 8 Hollow interior of the blade 9 Wind direction 10 Front face of the blade Il Rear face of the blade 12 Air expulsion through the FIG nozzles? 1: Outside front face of a FIG blade? 2 FIG longitudinal section? 3 Cross section

Claims (1)

REVENDICATIONCLAIM 1. - Pale creuse pour éolienne comportant une ou plusieurs ouvertures (4) situées sur la face avant (10) de la pale pour l'entrée du vent, et des trous (5) en forme de tuyère situés sur le bord arrière (3) dela pale pour l'évacuation de l'air, caractérisés en ce que la surface totale des trous (5) des tuyères est inférieure à la surface totale des  1. - Hollow blade for wind turbines comprising one or more openings (4) located on the front face (10) of the blade for the entry of the wind, and holes (5) in the form of a nozzle situated on the rear edge (3 ) of the air evacuation blade, characterized in that the total surface of the holes (5) of the nozzles is less than the total surface of the
Figure img00030003
Figure img00030003
 ouvertures (4) d'entrée du vent afin de créer une pression, à l'intèrieur (8) dela pale, qui engendre une réaction à la sortie des tyères (5), openings (4) for the entry of the wind in order to create a pressure, inside (8) of the blade, which generates a reaction at the exit of the tyres (5),
FR0011951A 2000-09-20 2000-09-20 REACTIVE HOLLOW BLADE FOR WIND TURBINE Expired - Fee Related FR2814204B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR0011951A FR2814204B1 (en) 2000-09-20 2000-09-20 REACTIVE HOLLOW BLADE FOR WIND TURBINE
PCT/FR2001/002629 WO2002025109A1 (en) 2000-09-20 2001-08-20 Reactive hollow blades for wind machine
AU2001284148A AU2001284148A1 (en) 2000-09-20 2001-08-20 Reactive hollow blades for wind machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0011951A FR2814204B1 (en) 2000-09-20 2000-09-20 REACTIVE HOLLOW BLADE FOR WIND TURBINE

Publications (2)

Publication Number Publication Date
FR2814204A1 true FR2814204A1 (en) 2002-03-22
FR2814204B1 FR2814204B1 (en) 2003-02-07

Family

ID=8854471

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0011951A Expired - Fee Related FR2814204B1 (en) 2000-09-20 2000-09-20 REACTIVE HOLLOW BLADE FOR WIND TURBINE

Country Status (3)

Country Link
AU (1) AU2001284148A1 (en)
FR (1) FR2814204B1 (en)
WO (1) WO2002025109A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2846382A1 (en) * 2003-02-12 2004-04-30 Georges Boulisset Modification for wind generator blades, comprises wind entry into the blade at the leading edge near the tip, deflector to send wind to trailing edge and slot with spacers at the trailing edge

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007035758A1 (en) * 2005-09-19 2007-03-29 University Of Florida Research Foundation, Inc. Wind turbine blade comprising a boundary layer control system
US7354247B2 (en) * 2005-10-27 2008-04-08 General Electric Company Blade for a rotor of a wind energy turbine
US7942640B2 (en) * 2009-03-19 2011-05-17 General Electric Company Method and apparatus for use in protecting wind turbine blades from lightning damage
KR20110136296A (en) * 2010-06-14 2011-12-21 삼성중공업 주식회사 Blades for wind turbine and wind turbine therewith
CN102352825A (en) * 2011-11-01 2012-02-15 三一电气有限责任公司 Wind generating set and blade thereof
CN103939291B (en) * 2014-05-06 2017-03-15 深圳邦忠风力发电科技股份有限公司 Height wind speed compatible type Wind turbines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793339A (en) * 1929-12-11 1931-02-17 Roberts Brothers Propeller
US2156133A (en) * 1936-06-16 1939-04-25 Theodore H Troller Propeller
US2246706A (en) * 1939-07-03 1941-06-24 Vorhies Leroy Airplane propeller
FR905544A (en) * 1944-06-28 1945-12-06 Cem Comp Electro Mec Air motor with pneumatic transmission
CH564687A5 (en) * 1973-04-12 1975-07-31 Vadas Jmre Wind power driven rotor with hollow blade - has air flow diverting channel on side facing wind
US4045146A (en) * 1976-05-17 1977-08-30 Avco Corporation Helicopter rotor blade
DE2741893A1 (en) * 1977-09-17 1979-03-29 Friedrich Cramer Blade for wind turbine generator - has profiled tooth with air slots to give flow with high aerodynamic efficiency

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793339A (en) * 1929-12-11 1931-02-17 Roberts Brothers Propeller
US2156133A (en) * 1936-06-16 1939-04-25 Theodore H Troller Propeller
US2246706A (en) * 1939-07-03 1941-06-24 Vorhies Leroy Airplane propeller
FR905544A (en) * 1944-06-28 1945-12-06 Cem Comp Electro Mec Air motor with pneumatic transmission
CH564687A5 (en) * 1973-04-12 1975-07-31 Vadas Jmre Wind power driven rotor with hollow blade - has air flow diverting channel on side facing wind
US4045146A (en) * 1976-05-17 1977-08-30 Avco Corporation Helicopter rotor blade
DE2741893A1 (en) * 1977-09-17 1979-03-29 Friedrich Cramer Blade for wind turbine generator - has profiled tooth with air slots to give flow with high aerodynamic efficiency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2846382A1 (en) * 2003-02-12 2004-04-30 Georges Boulisset Modification for wind generator blades, comprises wind entry into the blade at the leading edge near the tip, deflector to send wind to trailing edge and slot with spacers at the trailing edge

Also Published As

Publication number Publication date
WO2002025109A1 (en) 2002-03-28
AU2001284148A1 (en) 2002-04-02
FR2814204B1 (en) 2003-02-07

Similar Documents

Publication Publication Date Title
EP3030774B1 (en) Integrated thrust reverser device and aircraft engine nacelle equipped therewith
FR2814204A1 (en) Blade for wind turbine, has openings in blade section on forward face to allow wind into hollow section, with further nozzle shaped openings on rear face, with total area of inlet holes greater than area of outlet holes.
FR2474436A1 (en) BOAT WHERE THE PROPELLER ROTATES IN A TUNNEL MADE ON THE DOLL
JP2004174257A5 (en)
EP0997612A3 (en) Bladed ducting for turbomachinery
EP1693572A3 (en) Bleeding air from the tip of the rotating blades in a high pressure compressor of a turbine engine
ITBZ20070021A1 (en) SUPPORT ARM FOR WIND TURBINE WINGS WITH VERTICAL ROTATION AXIS
EP2556237A1 (en) Aircraft propulsion system provided with reverse thrust means
FR2858650A1 (en) AUBE ROTOR HOLLOW FOR THE TURBINE OF A GAS TURBINE ENGINE
FR2685393A1 (en) AXIAL FAN IN PARTICULAR FOR A MOTOR VEHICLE.
CA3135101A1 (en) Air inlet for turbojet engine nacelle comprising rectifier vanes
CH532194A (en) Fluid machine
CN108343473A (en) Double air admission type air motors
FR2758376A1 (en) ROTOR CASE OF A TORQUE CONVERTER AND METHOD FOR FORMING THIS CASE
EP1941158B1 (en) Radial piston-type hydraulic motor with cylinder block cooling
FR2846382A1 (en) Modification for wind generator blades, comprises wind entry into the blade at the leading edge near the tip, deflector to send wind to trailing edge and slot with spacers at the trailing edge
FR3081942A1 (en) TANGENTIAL FAN TURBINE FOR FITTING A MOTOR VEHICLE, TANGENTIAL FAN, VENTILATION DEVICE AND HEAT EXCHANGE MODULE FOR A MOTOR VEHICLE
FR2459387A1 (en) Air fan for sun room wall mounting - has S=shaped blade leading and trailing edges
EP2665922A1 (en) Curved conduit pertaining to a hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine
FR2656377A1 (en) INSTALLATION FOR RELEASING OR CLOSING THE INPUT OF AIR ASPIRE OR EXIT OF EXHAUST GASES FROM A TURBINE.
FR3119834A1 (en) LIFT GENERATING SYSTEM AND BOAT EQUIPPED WITH SUCH A SYSTEM
FR2458696A1 (en) SWITCHABLE FAN UNIT FOR VAPOR SUCTION HOODS
FR2773380A1 (en) Horizontal axis wind rotor for vehicle
JP2604636B2 (en) All blade steam turbine
FR3071876B1 (en) VENTILATION DEVICE FOR A HEAT EXCHANGE MODULE OF A MOTOR VEHICLE

Legal Events

Date Code Title Description
ST Notification of lapse