EP2132436A2 - Dispositif à rotor, éolienne et procédé - Google Patents

Dispositif à rotor, éolienne et procédé

Info

Publication number
EP2132436A2
EP2132436A2 EP08723846A EP08723846A EP2132436A2 EP 2132436 A2 EP2132436 A2 EP 2132436A2 EP 08723846 A EP08723846 A EP 08723846A EP 08723846 A EP08723846 A EP 08723846A EP 2132436 A2 EP2132436 A2 EP 2132436A2
Authority
EP
European Patent Office
Prior art keywords
wind
rotor
foregoing
blades
deflector
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.)
Withdrawn
Application number
EP08723846A
Other languages
German (de)
English (en)
Inventor
Edwin Aronds
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.)
DE KNAITER BEHEER B.V.
Original Assignee
Edwin Aronds
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 Edwin Aronds filed Critical Edwin Aronds
Publication of EP2132436A2 publication Critical patent/EP2132436A2/fr
Withdrawn legal-status Critical Current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 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0436—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor
    • F03D3/0472—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield orientation being adaptable to the wind motor
    • F03D3/0481—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield orientation being adaptable to the wind motor and only with concentrating action, i.e. only increasing the airflow speed into the rotor, e.g. divergent outlets
    • 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
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/213—Rotors for wind turbines with vertical axis of the Savonius type
    • 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
    • F05B2250/70—Shape
    • 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 rotor device for use in the production of wind energy.
  • the present in- vention further relates to a wind turbine comprising such a rotor device according to the present invention for use in the production of wind energy.
  • the present invention further relates to a method in respect of such a rotor and/or wind turbine. It is known to produce wind energy for the use thereof. Wind turbines of many types and sizes are used for this purpose. It is for instance possible to use wind turbines for transmitting wind energy in the form of kinetic energy. It is further possible to generate electric- al energy by applying wind energy.
  • a variety of types of wind turbine are known for this purpose. Examples hereof include wind turbines with a shaft arranged in the wind direction and wind turbines with a shaft arranged perpendicularly of the wind direction. Examples of this latter are the Savonius rotor and the Darrieus rotor.
  • An advantage of such rotors is that they function with any wind direction directed perpendicularly of the shaft.
  • a significant drawback of wind turbines with a rotor shaft in the longitudinal direction of the wind is that they can only be exposed to the wind at determined wind speeds in order to prevent damage thereto.
  • the wind turbines with the rotor shaft directed perpendicularly of the wind do not have this drawback.
  • the wind turbines with the rotor shaft directed vertically of the wind do however have a further drawback, namely that they only have a limited performance because of the principle of the difference in resistance between the driven rotor blades and the return blades.
  • the present invention provides a rotor device for use in the production of wind energy, comprising: - at least one rotor shaft which can be arranged substantially transversely of the wind during use,
  • At least two rotor blades which are coupled to the rotor shaft and which are arranged such that, during use, at least one rotor blade moves substantially in the direction of the wind and at least one rotor blade moves substantially against the direction of the wind, and
  • a first wind deflector which can be arranged such that during use it deflects away from the rotor blades wind which slows down a rotor blade.
  • the first wind deflector in the rotor device comprises a wind-separating form, such as a substantially V-shape, which shields the front side of the rotor in the wind direction on the side where the rotor blades rotate against the wind direction.
  • a wind-separating deflector is that a part of the wind can be directed to the part of the rotor rotating away from the wind, or the wind-catching part, while the other part is shielded from the wind.
  • the wind deflector in the rotor device more preferably has a width which in front view, in the wind direction, covers more than half the rotor width, preferably covers more than a full rotor width, and which is preferably arranged such that substantially the whole wind- catching side of the rotor is open in the direction of the wind.
  • the device more preferably comprises substantially horizontal separating elements for separating air flowing through the rotor at different heights. This measure is also effective in preventing turbulence, reducing turbulence and/or reducing the braking action of turbulence.
  • the rotor device comprises a second wind deflector which is arranged such that during use it deflects in the direction of the rotor blades wind which accelerates a rotor blade.
  • the wind pressure on the driving rotor blades is hereby increased, whereby the efficiency of the rotor can be improved.
  • the combination of the first and second wind deflectors provides an increased wind pressure on the frontal view surface of the rotor blades as seen from the direction from which the wind originates.
  • a further preferred embodiment comprises comprising rotation means for mounting the first and/or second wind deflector for rotation about the rotor axis. It hereby becomes possible for instance to hold the first and/or second wind deflector directed into the wind such that the wind would press as well as possible against the driven part of the rotor blade or the rotor blades.
  • the rotor device comprises a deflector orientation unit, preferably com- prising a wind vane, for bringing and/or holding the first and/or second wind deflector in a desirable orientation relative to the wind and/or the rotor shaft.
  • a deflector orientation unit preferably com- prising a wind vane
  • this is also possible by means of for instance a motor-driven deflector orientation unit, which for instance receives wind direction information from a wind direction meter.
  • Information from the rotor device itself can optionally be used for the purpose of measuring the wind direction.
  • the first and/or second wind deflector preferably comprises a casing part preferably having a substantially cylindrical form.
  • the cylindrical form is closely associated with a Savonius rotor. It is for instance likewise possible to apply a casing part with a spherical form, this being associated with a Darrieus rotor. Said cylin- drical form will of course extend over only a part of the periphery of the rotor.
  • the wind deflector in a further preferred embodiment, the wind can be guided towards the inlet opening on the side substantially directed toward the wind during use.
  • the inlet guide member can be a determined form of the front side of the first wind deflector. It may however also comprise an additional member such as a wind guiding fin.
  • a wind guide fin is ap- plied for the purpose of separating the wind some distance from the rotor blades. A part of the wind will here be guided round the outside of the rotor, thereby effectively reducing the resistance of the returning rotor blades. On the other hand, a part of the wind will be guided in the direction of the driven rotor blades, effectively causing the pressure thereon to become greater.
  • the precise form of the inlet guide member and/or the wind guide fin can be determined in detail within the concept of the present in- vention by the skilled person during the design of specific embodiments according to the present invention.
  • the first and/or second wind deflector comprises an outlet guide member substantially on the side remote from the wind during use.
  • an outlet guide member the airflow flowing out or flowing away can be guided such that resistance- increasing turbulences can be prevented or reduced.
  • An optimal mixing of the airflows flowing round the rotor device and the air flowing therethrough can also be realized using the outlet guide member.
  • a further measure which can reduce the resistance of the return rotor blades is to provide lateral air outflow openings. These can for instance be arranged in the cylindrical part of the first wind deflector. An advantage of such an air outflow opening is that the braking pressure on the return blades can be reduced.
  • air outflow openings are more preferably provided with an upwind shield.
  • An advantage hereof is that the outflowing air is not obstructed by the air flow- ing past, or less so.
  • the rotor device comprises a plurality of stages of rotor blades, wherein the rotor blades can be disposable per stage in a differ- ent mutual orientation relative to the rotor shaft.
  • a further aspect of the present invention relates to a wind turbine comprising a rotor device according to the present invention, wherein the wind turbine comprises a dynamo or generator for converting kinetic energy into electrical energy and/or a transmission mechanism for transmitting kinetic energy to an apparatus or system to be driven.
  • the wind turbine comprises a dynamo or generator for converting kinetic energy into electrical energy and/or a transmission mechanism for transmitting kinetic energy to an apparatus or system to be driven.
  • a further aspect of the present invention relates to a method for using the device as specified in the foregoing, wherein the method comprises steps for placing and connecting and/or steps for take-off of the produced wind energy.
  • FIG. 1 is a schematic cross-section of a first preferred embodiment according to the present invention with three rotor blades per stage,
  • FIG. 2 is a perspective view of a further embo- diment with two rotor blades and two stages
  • - Fig. 3 is a schematic perspective view of a further preferred embodiment according to the present invention
  • - Fig. 4 is a schematic top view of the embodiment according to Fig. 3.
  • a preferred embodiment according to the present invention (fig. 1) relates to a wind turbine 1.
  • the wind turbine is shown in cross-section.
  • the wind turbine is a Savonius type of wind turbine with a rotor 2.
  • Rotor 2 comprises three rotor blades 3,4,5.
  • the three rotor blades are mounted on a rotor shaft 6.
  • three rotor blades are shown in this preferred embodiment, configura- tions are also possible with two, four, five or six rotor blades, and possibly more.
  • the rotor blades rotate.
  • the rotor blades rotate within a substantially cylindrical space, which is designated by means of the broken circular line which specifies the ends of the rotor blades.
  • Central shaft 6 will rotate due to driving of the rotor blades and a device or a dynamo for generating electrical energy can be driven by means of this kinetic ener- gy. These components are not shown per se.
  • a transmission (not shown) can be provided for the purpose of adjusting the rotation speed of the shaft to a possible device or dynamo to be driven.
  • the operation of the Savonius wind turbine is based on the difference in resistance between the rotor blades co-displacing with the wind and the rotor blades rotating against the wind.
  • Different types of Savonius rotor are known, including rotors with two separate half- spheres as rotor blade and rotors with two curved blades situated opposite each other.
  • a known optimization in Savonius rotors is that the wind can be guided between the blades so that the blades moving against the wind gain some additional push from the wind which is first captured in the blades co-displacing with the wind.
  • the simplicity of the known Savonius rotor is also a source of its limitations.
  • the produced energy is for instance limited to the difference in resistance of the driven rotor blades relative to the returning rotor blades.
  • a further object is to rela- tively increase the resistance on the driven rotor blades.
  • the rotor blades rotate in the direction of arrow R.
  • the rotor blade 4 moving against the wind is under the influence of the same wind as the rotor blades 3,5 co-displacing with the wind.
  • the driven rotor blade will be in symmetrical position relative to rotor blade 4 relative to shaft 6.
  • Wind deflector 11 serves to obstruct the wind against which rotor blade 4 has to move.
  • wind deflector 12 is a roughly semi-round cylinder, this being shown in the figure by wall parts 12 and 15. These wall parts serve to shield rotor blade 4, or at least the part of the space of the rotor where the rotor blade moves against the wind.
  • deflector 21 is not present either. The wind is therefore deflected round wind deflector wall 12,15 and can further move freely round wind turbine 1.
  • Alternative embodiments further comprise the respective parts 13,19,17,18,20,16,21, as will be de- scribed hereinbelow.
  • the wind deflector 11 comprising wall parts 12 and 15 is augmented with a fin 13 with a leading edge 14.
  • This fin has a form such that as much wind as possible is urged in a direction suitable for the driving of the rotor in the direction of the rotor space.
  • this fin is shown with a form which is spherical toward the front side. In an alternative such a form is straight or concave.
  • a further object of such a fin is to limit turbulence on the front side of the rotor.
  • the front side is understood to mean the side from which the wind comes.
  • deflector 11 is provided with a wind guide member 16 on the rear side thereof.
  • the rear side is understood to mean the side toward which the wind blows.
  • This wind guide member or spoiler 16 serves to limit turbulence where the wind blowing under the deflector rejoins the wind driving the rotor blades.
  • the form of this spoiler can also depend on the conditions and can be further specified within the scope of the present invention by the skilled person.
  • cylinder wall 12,15 is provided with respective openings 17,18 for allowing out- flow therethrough of air driven by the returning blades, as shown here in figure 1 by means of blade 4.
  • flaps 19,20 are further provided which shield this outflow opening against the wind flowing past. It is also advantageous if an underpressure were to occur behind flaps 19,20 due to wind flowing past, whereby driving of the returning rotor as shown in the position of rotor 4 is stimulated in that air is drawn out of the left-hand space of the rotor space by this underpressure.
  • the form of flaps 19,20 can herein also be determined experimentally subject to conditions by the skilled person within the scope of the present invention.
  • a further embodiment comprises a second deflector 21 on the other side of deflector 11 of the rotor space indicated by means of the broken circular line, this deflector being intended for the purpose of capturing the wind in order to drive the rotor blades driven by the wind on their high-resistance side.
  • This deflector can be determined subject to the conditions, such as the shape of the rotor blade, frequently occurring wind types and speeds and the like.
  • the shape on the front side close to edge 22 serves to minimize turbulence and to maximize the effect of the driving of the rotor blades.
  • a shape can also be provided on the rear side of this deflector 21 which can be determined by the skilled person subject to the parameters of the embodiment within the scope of the present invention.
  • Wind turbine 1 is preferably rotatable so that it can be directed into the wind. Because the rotor has the same operation per se in any direction, it suffices that the deflectors are rotatable relative to the wind. In ad- dition, the deflectors are optionally rotatable to some extent relative to each other in order to provide an optimal operation in any wind direction.
  • the form of the inlet and outlet 13,16,22 of the deflectors is for instance also adjustable here subject to for instance the wind speed.
  • the spoiler 16 can for instance have a determined length such that it obtains a steering action. Separately of these deflectors it is however also possible to couple a vane thereto such that this additional vane (not shown) can provide for a correct orientation relative to the wind direction. It is further possible to provide a wind direction meter with a control mechanism and a drive, for in- stance in the form of an electric motor. A number of wind turbines can for instance be oriented here in the correct direction on the basis of data from one wind direction meter.
  • Fig. 2 shows a perspective view of an embodiment comprising two stages, each with two blades. The arrangement of the wind deflectors is here substantially the same as that of the above described embodiment. The stages are bounded and separated by means of substantially round plates 31,32,33. As seen in top view, rotor blades 23 and 24 of the upper stage are offset/rotated 90 degrees relative to rotor blades 25 and 27 of the lower stage.
  • An advantage of the present invention is that it makes the Savonius rotor intrinsically more efficient at all wind speeds in that the resistance of the driven rotor blades is increased relative to the rotor blades moving against the wind.
  • a wind turbine with for instance a Savonius rotor hereby becomes applicable or cost-effective under more varied conditions.
  • Fig. 3 and Fig. 4 show a further preferred embodiment. The rotor blades are not shown for the sake of simplicity of the figure. These are similar to the rotor blades of the above described embodiments.
  • This wind turbine 29 comprises a rotor with two stages, which are mu- tually separated by means of a partition wall, and is bounded on the top side by an upper wall 30 and is bounded on the underside by a lower wall 32.
  • the rotor is rotatable about a central axis, and also the components which are static relative to the wind direction, including deflector 35, frame construction 40 and wind vane 41, are rotatable around this central axis 34.
  • Deflector part 35 of the device is preferably embodied as a structural unit together with this frame 40 and the wind vane.
  • Frame 40 here connects the wind vane and deflector 35.
  • the deflector is preferably embodied in simple manner as two plates 36,37, such as metal or plastic plates.
  • the plates are preferably constructed from a plate with a bend line 38.
  • the frame preferably comprises a T-profile 40 for a simple, strong construction, although the skilled person will be able to devise equivalent alternatives for the construction of a frame within his general professional knowledge in the field.
  • the frame is connected to rotor shaft 6.
  • the wind deflector preferably provides a protec- tion from the wind to the part of the rotor moving against the wind, and is preferably wider here than half the rotor. Since the front side of the wind-capturing part of the rotor is free for incident wind, the deflector can protrude on the side of the rotor rotating against the wind.
  • the deflector herein provides a wind-free zone in which the rotor can move in this direction without wind resistance. When sufficiently wide, the deflector can even prevent the braking action of the wind on turbulence in the created windless zone.
  • the wind deflector can herein extend further rearward than the front side of the rotor. In other words, the side of plate 37 can extend further to the rear.

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)
  • Wind Motors (AREA)

Abstract

La présente invention concerne un dispositif à rotor utilisé dans la production d'énergie éolienne, comprenant au moins un arbre du rotor qui peut être disposé sensiblement transversalement au vent pendant l'utilisation, au moins deux pales de rotor couplées à l'arbre du rotor et disposées de manière qu'au moins une pale de rotor se déplace sensiblement dans le sens du vent et qu'au moins une pale de rotor se déplace sensiblement dans le sens contraire du vent lors de l'utilisation et, enfin, un premier déflecteur placé de façon qu'il dévie et éloigne des pales du rotor le vent qui ralentit une pale de rotor. Cette invention concerne aussi une éolienne comprenant ce dispositif à rotor.
EP08723846A 2007-03-07 2008-03-07 Dispositif à rotor, éolienne et procédé Withdrawn EP2132436A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1033514A NL1033514C2 (nl) 2007-03-07 2007-03-07 Rotor in de richting, windmolen en werkwijze.
PCT/NL2008/000074 WO2008108637A2 (fr) 2007-03-07 2008-03-07 Dispositif à rotor, éolienne et procédé

Publications (1)

Publication Number Publication Date
EP2132436A2 true EP2132436A2 (fr) 2009-12-16

Family

ID=38626668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08723846A Withdrawn EP2132436A2 (fr) 2007-03-07 2008-03-07 Dispositif à rotor, éolienne et procédé

Country Status (3)

Country Link
EP (1) EP2132436A2 (fr)
NL (1) NL1033514C2 (fr)
WO (1) WO2008108637A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2473881A (en) * 2009-09-29 2011-03-30 David Wilson Shielded, self regulating transverse wind or water turbine
BE1019714A3 (nl) 2010-12-31 2012-10-02 Dacus Walter Windturbine met verticale as.
GB201104929D0 (en) * 2011-03-24 2011-05-04 Liverpool Renewable Energy Res Ct The Multiple savonius turbines
FR2977917A1 (fr) * 2011-07-13 2013-01-18 Bg Photon Solar Eolienne a axe vertical
CN103362733B (zh) * 2013-07-26 2015-07-29 安科智慧城市技术（中国）有限公司 风能收集装置
US9689372B2 (en) 2013-10-08 2017-06-27 Aurelio Izquierdo Gonzalez Vertical-axis wind turbine with protective screen
CN105909465A (zh) * 2016-07-07 2016-08-31 洛阳理工学院 一种涡流离心式风力发电装置
DE102019100208A1 (de) * 2019-01-07 2020-07-09 Dirk Petersen Vertikale Windenergieanlage

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821930C (de) * 1948-11-16 1951-11-22 Gertrud Suffczynski Geb Senftl Windkraftmaschine
US3895882A (en) * 1974-04-17 1975-07-22 Robert D Moyer Windmill structure
US4260325A (en) * 1979-11-07 1981-04-07 Cymara Hermann K Panemone wind turbine
US4350900A (en) * 1980-11-10 1982-09-21 Baughman Harold E Wind energy machine
DE3045826A1 (de) * 1980-12-05 1982-06-16 Blum, Albert, 5204 Lohmar Windkraftanlage
DE19600501A1 (de) * 1996-01-09 1996-12-05 Frank Katlewski Windkraft-Zylindervertikalachs-Rotor
JP3260732B2 (ja) * 1999-11-01 2002-02-25 正治 三宅 風力発電装置
CA2452965A1 (fr) * 2003-12-31 2005-06-30 Bud T. J. Johnson Configuration de moteur a turbine-rotor horizontal actionnes par l'energie eolienne
TWI255880B (en) * 2004-06-04 2006-06-01 Tai-Her Yang Guided fluid driven turbine
WO2006039727A1 (fr) * 2004-10-07 2006-04-13 Michael Robert Des Ligneris Turbine a axe vertical

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2008108637A3 (fr) 2009-04-09
NL1033514C2 (nl) 2008-09-09
WO2008108637A2 (fr) 2008-09-12

Similar Documents

Publication Publication Date Title
WO2008108637A2 (fr) Dispositif à rotor, éolienne et procédé
US5009569A (en) Wind energy collection system
US8961103B1 (en) Vertical axis wind turbine with axial flow rotor
US7112034B2 (en) Wind turbine assembly
EP2589804A1 (fr) Appareil générateur d'énergie éolienne
EP2136077A2 (fr) Eolienne avec système de refroidissement du générateur
KR101588395B1 (ko) 풍력 터빈
CA2769655A1 (fr) Turbine omnidirectionnelle a axe vertical
MX2012001112A (es) Turbina aerogeneradora.
WO2006123951A1 (fr) Eolienne
US20080209940A1 (en) Gust Water Trap Apparatus
WO2004092546A9 (fr) Ventilateur centrifuge
US4182594A (en) Wind driven energy system
KR20240051968A (ko) 유체 흐름 기반 재생 에너지 생산을 위한 시스템 및 방법
KR101817229B1 (ko) 다중 풍력발전장치
EP0509127A1 (fr) Système collecteur de vent pour l'extraction d'énergie éolienne
US8864455B2 (en) Impulse wind machine
US8052372B1 (en) Wind turbine
US20100181775A1 (en) Wind power electricity generation system
GB2447437A (en) Turbine with fluid scoop
US9982655B2 (en) Rotor and fluid turbine with rotor
SE0802459A1 (sv) Effektökande stolpliknande anordning för luftturbin
CA2063586C (fr) Ventilateur pour machine electrique
CA2349443C (fr) Conception d'une eolienne
US20120141252A1 (en) Wind Turbine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091009

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DE KNAITER BEHEER B.V.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ARONDS, EDWIN

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160210

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20190402

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190813