WO2009084870A2 - Système d'énergie éolienne à arbre vertical ayant de multiples types de lames de rotor - Google Patents

Système d'énergie éolienne à arbre vertical ayant de multiples types de lames de rotor Download PDF

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Publication number
WO2009084870A2
WO2009084870A2 PCT/KR2008/007700 KR2008007700W WO2009084870A2 WO 2009084870 A2 WO2009084870 A2 WO 2009084870A2 KR 2008007700 W KR2008007700 W KR 2008007700W WO 2009084870 A2 WO2009084870 A2 WO 2009084870A2
Authority
WO
WIPO (PCT)
Prior art keywords
engaged
gear
rotor
clutch bearing
planetary gear
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.)
Ceased
Application number
PCT/KR2008/007700
Other languages
English (en)
Other versions
WO2009084870A3 (fr
Inventor
Jae Ho Hong
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.)
GENERAL ROTOR CO Ltd
Original Assignee
GENERAL ROTOR CO Ltd
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 GENERAL ROTOR CO Ltd filed Critical GENERAL ROTOR CO Ltd
Publication of WO2009084870A2 publication Critical patent/WO2009084870A2/fr
Publication of WO2009084870A3 publication Critical patent/WO2009084870A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • 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 
    • F03D3/02—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having a plurality of rotors
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F05B2240/21—Rotors for wind turbines
    • 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
    • F05B2240/40—Use of a multiplicity of similar components
    • 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

Definitions

  • the present invention relates to a vertical shaft type wind power system having multiple rotor blades, and in particular to a vertical shaft type wind power system having multiple rotor blades which is configured to efficiently generate power by concentrating each rotational power to one output driving device by rotating multiple rotor blades irrespective of a wind direction.
  • a power generation method might be classified into a water power method, a fossil power method and an atomic power method.
  • the above power generation methods require a huge size of power generation facilities. So, lot of petroleum or charcoal energy is needed so as to drive the above power generation facilities. As charcoal resource runs out, a new innovative power generation is urgently needed, which does not need petroleum and charcoal resource as compared to a conventional power generation method such as a water power method, a fossil power method and an atomic power method.
  • the wind power generation device can be easily installed while not producing any wastes.
  • a main shaft is mainly rotated by means of a huge cylindrical and propeller type impeller, and a power generator is connected with the main shaft for thereby generating power.
  • the conventional propeller type device can produce power irrespective of a wind direction, but it disadvantageously occupies a lot of space.
  • a vertical shaft type wind power system having multiple rotor blades which can generate power by means of wind power by installing a plurality of rotor blades in a vertical shaft, and can generate power all the time even when a wind direction changes for thereby enhancing the performance of a power generation system.
  • a vertical shaft type wind power system having multiple rotor blades, comprising a pole 1 which is vertically installed on the ground; a generation part which is installed on a top of the pole 1 and is equipped with a center output side one direction output driving device A; a plurality of horizontally installed rotor frames 2 which is engaged vertically with respect to the pole 1 ; and a driving part which includes a plurality of rotor blades 5 installed in an end of each rotor frame 2 and rotating by means of wind, and a rotor side one direction output driving device B which rotates depending on the rotation of the rotor blade 5 and is connected with the center output side one direction output driving device A for thereby transferring a rotational force.
  • the present invention it is possible to double a power generation efficiency as compared to the conventional art under the same condition. It is possible to generate energy irrespective of a wind direction, and the driving device according to the present invention can be standardized and manufactured in a module type for thereby providing a high valued universal type wind power system along with a high manufacture efficiency.
  • the present invention can be applied as providing an independent power resource in an isolated island or a deep mountain area and a farm.
  • the present invention can be applied as a power resource in a sidewalk lighting means of a coastal road.
  • Figure 1 is a perspective view illustrating a wind power generation device according to the present invention
  • Figure 2 is a cross sectional view illustrating an engaged state of a wind power generation device according to the present invention
  • Figure 3 is an enlarged view of a center output side one direction output driving device of Figure 2;
  • Figures 4 and 5 are views of another embodiment of the present invention.
  • Figure 6 is a view of a blade adapted in the present invention.
  • Figure 7 is an enlarged view of a rotor side one direction output driving device of
  • the vertical shaft type wind power system having multiple rotor blades comprises a pole 1 which is vertically installed on the ground; a generation part which is installed on a top of the pole 1 and is equipped with a center output side one direction output driving device A; a plurality of horizontally installed rotor frames 2 which is engaged vertically with respect to the pole 1 ; and a driving part which includes a plurality of rotor blades 5 installed in an end of each rotor frame 2 and rotating by means of wind, and a rotor side one direction output driving device B which rotates depending on the rotation of the rotor blade 5 and is connected with the center output side one direction output driving device A for thereby transferring a rotational force.
  • Figure 1 is a perspective view illustrating a wind power generation device according to the present invention
  • Figure 2 is a cross sectional view illustrating an engaged state of a wind power generation device according to the present invention.
  • a vertical shaft type wind power system having multiple rotor blades, comprising a pole 1 which is vertically installed on the ground; a generation part which is installed on a top of the pole 1 and is equipped with a center output side one direction output driving device A; a plurality of horizontally installed rotor frames 2 which is engaged vertically with respect to the pole 1 ; and a driving part which includes a plurality of rotor blades 5 installed in an end of each rotor frame 2 and rotating by means of wind, and a rotor side one direction output driving device B which rotates depending on the rotation of the rotor blade 5 and is connected with the center output side one direction output driving device A for thereby transferring a rotational force.
  • the generation part includes a box shaped protection casing 7; a center output side one direction output driving device A which is installed in the interior of the protection casing 7; a multiple pole type generator 8 which is engaged to the center output side one direction output driving device A; a converter 9 which converts a variable rectified voltage from the multiple pole generator 8 into a constant output voltage and charges a certain level output into a battery 10; a charging battery 10; an inverter 11 for inverting the DC voltage of the charged battery 10 into an AC voltage; a wind speed and rotation detection sensor 12; and an over current and over charging prevention device 13.
  • Figure 3 is an enlarged view of a center output-based one direction output driving device of Figure 2.
  • the center output side one direction driving device A includes a lower driving shaft 50-1 in which a chain sprocket 40 is axially engaged; a first normal direction clutch bearing 20- 1 which is axially engaged to the lower driving shaft 50-1; an outer flange 30-1 which is installed while contacting with an outer side of the first normal direction clutch bearing 20- 1 ; a first reverse direction clutch bearing 20-2 which is axially engaged to the lower driving shaft 50- 1 and is axially engaged to an upper side of the first normal direction clutch bearing 20- 1 ; a lower linear gear 60- 1 which is installed while contacting with an outer side of the first reverse direction clutch bearing 20-2; a common planetary gear 70 which is engaged with the lower linear gear 60-1; an outer surface gear type ring gear 10-1 of which an inner surface is engaged with the common planetary gear 70, and an outer surface is engaged with the gear of the rotor shaft of the generator 8; an upper driving shaft 50-2 in which a chain sprocket 40 is axially engaged;
  • the first and second normal direction or reverse direction clutch bearings 20-1 through 20-4 are configured to have different clutch operations depending on their attaching sides like the coin has different images in its both sides.
  • a rotational force is transferred to the outer wheel, so the outer wheel rotates in a clockwise direction
  • a rotational forcer is not transferred to the outer wheel, so only the inner wheel idle-rotates.
  • the outer wheel can rotate by itself in a clockwise direction, which is called a normal direction clutch bearing.
  • the operation opposite to the above operation is called a reverse direction clutch bearing.
  • the rotor frame 2 is equipped with a connection member for connecting the center output side one direction output driving device A and the rotor side one direction output driving device B, and is formed in a straight shape or a cross shape.
  • the rotor blade 5 includes an upper rotor shaft 3 which is axially engaged with the rotor side one direction output driving device B in a vertical direction, and a plurality of blades 51 installed in the upper rotor shaft 3.
  • the blade 51 is formed of air foil.
  • the number of the rotor blades 5 might change depending on the shape of the rotor frame 2.
  • the rotor blade 5 might be selectively installed in either the upper rotor shaft 3 or the lower rotor shaft 3' of the rotor side one direction output driving device B or might be installed in both the same.
  • FIGS 4 and 5 show another embodiment of the present invention.
  • the rotor frame 2 is formed in a cross shape, and the rotor blade 5 is installed in all ends of the same and then is installed in opposite ends, so eight rotor blades are installed.
  • Figure 6 is a view of a rotor blade applied to the present invention.
  • the rotor blade 5 is formed in one shape selected from a darrieus shape (a), a cycloid shape (b), a savonius shape(c), a double-side cup shape(d), and a turbine shape(e).
  • the cycloid shape(b) is applied, but it is not limited thereto.
  • Figure 7 is an enlarged view of a rotor side one direction output driving device of
  • the rotor side one direction output driving device B includes a lower rotor shaft 3' in which a rotor blade 5 is axially engaged; a first normal direction clutch bearing 20-1 which is axially engaged to the lower rotor shaft 3'; a lower flange 30- 1 which is installed while contacting with an outer side of the first normal direction cutch bearing 20-1 and is fixed to the outer surface chain sprocket type ring gear 10-1'; a first reverse direction clutch bearing 20-2 which is axially engaged to the lower rotor shaft 3' and is axially engaged to the upper side of the first normal direction clutch bearing 20-1; a lower linear gear 60-1 which is installed while contacting with an outer side of the first reverse direction clutch bearing 20-2; a common planetary gear 70 which is engaged with the lower linear gear 60- 1 ; an outer surface chain sprocket type ring gear 10-1' of which an inner surface is engaged with the common planetary gear 70; an upper rotor shaft 3 in which the rotor shaft 3 in which the rotor shaft
  • the outer surface gear type ring gear 10-1 having teeth on its outer surface is engaged with the gear fixed in the shaft of the rotor of the generator 8. As the outer surface gear type ring gear 10-1 rotates the rotor of the generator 8 for thereby generating power.
  • the lower flange 30-1 in which the first normal direction clutch bearing 20- 1 is inserted is attached to one side of the outer surface gear type ring gear 10-1, and the lower driving shaft 50-1 in which the chain sprocket 40 is axially engaged is fixedly inserted into the inner wheel of the first normal direction clutch bearing 20-1.
  • the inner wheel of the first reverse direction clutch bearing 20-2 is fixed at one end of the lower driving shaft 50-1, and the lower linear gear 60-1 having teeth is fixed in the outer wheel of the same.
  • the lower linear gear 60-1 is engaged with the common planetary gear 70, and the common planetary gear 70 is engaged with the teeth of the inner surface of the outer surface gear type ring gear 10-1.
  • the second reverse direction clutch bearing 20-3 is inserted into an outer surface of one end of the upper driving shaft 50-2 in which the chain sprocket 40 is axially engaged.
  • the first upper linear gear 60-2 having teeth is fixed in the outer wheel of the second reverse direction clutch bearing20-3 and is engaged with the common planetary gear 70, and the common planetary gear 70 is engaged with the teeth of the inner side of the outer surface gear type ring gear 10-1.
  • the second normal direction clutch bearing 20-4 is axially engaged to the upper driving shaft 50-2, and the second upper linear gear 60-3 having teeth is fixed in the outer wheel of the second normal direction cutch bearing 20-4 and is engaged with the planetary gear 80-1.
  • the planetary gear 80-1 is engaged with the second planetary gear 80-2, and the second planetary gear 80-2 is engaged with the teeth of the inner surface of the outer surface gear type ring gear 10-1.
  • One end of the upper driving shaft 50-2 is inserted into the bearing of the upper flange 30-2, and one surface of the upper flange 30-2 is fixed in the fixing bracket 90, and the common planetary gear 70 and the planetary gear 80-1 are hinged at the outer surface of the fixing bracket 90 by means of the first and second fixing pins 100-1 and 100-2.
  • a chain is connected to the chain sprocket 40 of the upper and lower driving shafts
  • the engaged common planetary gear 70 changes its rotation direction and starts rotating in the clockwise direction, and the rotational force is transferred to the outer surface type ring gear 10-1, and the rotational force is applied in the clockwise direction for thereby rotating a multiple pole type generator 8.
  • the common planetary gear 70 rotates in a clockwise direction
  • the first upper linear gear 60-2 fixed to the outer wheel of the second reverse direction clutch bearing 20-3 rotates in a counterclockwise direction.
  • the rotational force is not transferred to the inner wheel, so the inner wheel idle-rotates.
  • the lower driving shaft 50-1 rotates in a counterclockwise direction
  • a rotational force is not transferred to the upper driving shaft 50-2 fixed to the inner wheel of the second reverse direction clutch bearing 20-3, the upper driving shaft 50-2 does not rotate.
  • the lower and upper lineage gears 60- 1 and 60-2 are fixed with the outer wheels of the first and second reverse direction clutch bearings 20-2 and 20-3, so since the counterclockwise direction rotational force of the outer wheel is not transferred to the inner wheel with an idle rotation.
  • the upper driving shaft 50-2 does not move.
  • outer surface gear type ring gear 10-1 can rotate in a clockwise direction all the time even when the lower driving shaft 50-1 rotates either in a clockwise direction or in a counterclockwise direction, so that the gears fixed in the front end of the rotor shafts of the multiple pole type generator 8 can rotate for thereby generating power.
  • the outer surface gear type ring gear 10-1 can always rotate in a clockwise direction even when the upper driving shaft 50-1 rotate either in a clockwise direction or in a counterclockwise direction in combination with the one direction clutch bearing 20-1 through 20-4, the linear gears 60-1 through 60-3 and the planetary gears, so that the gears fixed to the front ends for the rotor shafts of the multiple pole generator 8 can rotate for thereby generating power.
  • the rotational force in the normal or reverse direction by means of the rotor blades 5 axially engaged to the upper and lower rotor shafts 3 and 3' of the rotor side one direction output driving devices B rotates the chain sprocket 40 axially engaged to the separate upper and lower driving shafts 50-2 and 50- 1 of the center output side one direction output driving device A through the connection member such as a chain or something, and each rotational force is concentrated and used for driving the rotor of the multiple pole generator 8 for thereby generating power.
  • the outer surface chain sprocket type ring gear 10-1 of the rotor side one direction output driving device B can rotate in one direction, so that the rotational force can be reliably transferred to the chain sprocket 40 axially engaged to the upper and lower driving shafts 50-2 and 50- 1 of the center output side one direction output driving device A through a connection member such as a chain or something.
  • the present invention it is possible to double a power generation efficiency as compared to the conventional art under the same condition. It is possible to generate energy irrespective of a wind direction, and the driving device according to the present invention can be standardized and manufactured in a module type for thereby providing a high valued universal type wind power system along with a high manufacture efficiency.
  • the present invention can be applied as providing an independent power resource in an isolated island or a deep mountain area and a farm. [81] In addition, the present invention can be applied as a power resource in a sidewalk lighting means of a coastal road.

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  • 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)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne un système d'énergie éolienne de type à arbre vertical ayant de multiples lames de rotor, comprenant un montant qui est installé verticalement sur le sol ; une partie de génération qui est installée sur le haut du montant et est équipée d'un dispositif de commande d'émission dans une direction côté sortie centrale A ; une pluralité de cadres de rotor installés horizontalement mis en prise verticalement avec le montant ; et une partie de commande qui comprend plusieurs lames de rotor installées à une extrémité de chaque cadre de rotor et qui tournent à l'aide du vent, et un dispositif de commande d'émission dans une direction côté rotor B qui tourne selon la rotation de la lame de rotor et est raccordé au dispositif de commande d'émission dans une direction côté sortie centrale A afin d'y transférer une force de rotation.
PCT/KR2008/007700 2007-12-27 2008-12-26 Système d'énergie éolienne à arbre vertical ayant de multiples types de lames de rotor Ceased WO2009084870A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070138184A KR100839485B1 (ko) 2007-12-27 2007-12-27 다수 로터블레이드가 장착된 수직축 풍력발전장치
KR10-2007-0138184 2007-12-27

Publications (2)

Publication Number Publication Date
WO2009084870A2 true WO2009084870A2 (fr) 2009-07-09
WO2009084870A3 WO2009084870A3 (fr) 2009-09-24

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PCT/KR2008/007700 Ceased WO2009084870A2 (fr) 2007-12-27 2008-12-26 Système d'énergie éolienne à arbre vertical ayant de multiples types de lames de rotor

Country Status (2)

Country Link
KR (1) KR100839485B1 (fr)
WO (1) WO2009084870A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034859A1 (fr) * 2014-12-16 2016-06-22 Smart Wind Integrated Renewables Letzebuerg, Société en Commandite Simple Installation éolienne ou groupe d'éoliennes à axe vertical
US12078142B2 (en) 2020-05-08 2024-09-03 Equinox Ocean Turbines B.V. Turbine with secondary rotors
DE102023002542A1 (de) * 2023-06-23 2024-12-24 Hans-Albert Oehme Quadro Windrad

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011021733A1 (fr) * 2009-08-20 2011-02-24 Tak Seung-Ho Appareil de génération d'énergie éolienne complexe de type à vitesse variable et procédé correspondant
KR101377878B1 (ko) * 2011-11-14 2014-03-27 현대엔지니어링 주식회사 발전장치
KR101377804B1 (ko) * 2012-05-22 2014-03-26 보국전기공업 주식회사 양방향 발전장치
WO2020219415A1 (fr) * 2019-04-23 2020-10-29 Cr Flight L.L.C. Ensemble moteur électrique axial à contre-rotation
WO2021041435A1 (fr) * 2019-08-29 2021-03-04 Cr Flight L.L.C. Ensemble bague collectrice d'ensemble moteur électrique différentiel contrarotatif

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Publication number Priority date Publication date Assignee Title
US4178126A (en) 1977-09-07 1979-12-11 Altarctic Engineering & Construction Ltd. Wind driven power generator
JPH01200066A (ja) * 1988-02-05 1989-08-11 Eiji Shinno 水平回転風車
JPH1122626A (ja) 1997-06-30 1999-01-26 Takahiko Yoshino 羽根を自転させて風のエネルギーを有効利用する垂直軸風車
JP2001059471A (ja) * 1999-08-23 2001-03-06 Mitsuomi Kuno 風力発電方法および風力発電装置
JP2006052669A (ja) 2004-08-11 2006-02-23 Rikio Arai 風力発電装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034859A1 (fr) * 2014-12-16 2016-06-22 Smart Wind Integrated Renewables Letzebuerg, Société en Commandite Simple Installation éolienne ou groupe d'éoliennes à axe vertical
US12078142B2 (en) 2020-05-08 2024-09-03 Equinox Ocean Turbines B.V. Turbine with secondary rotors
DE102023002542A1 (de) * 2023-06-23 2024-12-24 Hans-Albert Oehme Quadro Windrad

Also Published As

Publication number Publication date
KR100839485B1 (ko) 2008-06-19
WO2009084870A3 (fr) 2009-09-24

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