WO2021256912A1 - Darrieus wind turbine with starting system - Google Patents
Darrieus wind turbine with starting system Download PDFInfo
- Publication number
- WO2021256912A1 WO2021256912A1 PCT/KZ2020/000014 KZ2020000014W WO2021256912A1 WO 2021256912 A1 WO2021256912 A1 WO 2021256912A1 KZ 2020000014 W KZ2020000014 W KZ 2020000014W WO 2021256912 A1 WO2021256912 A1 WO 2021256912A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wind
- wind turbine
- turbine
- self
- starter
- Prior art date
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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- 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
-
- 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
-
- 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
- Y02E10/728—Onshore wind turbines
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the invention relates to wind turbines and can be used to generate electrical energy.
- the device is used to obtain kilowatt power of electricity by converting the kinetic energy of the wind into electrical energy for the use of farms and small businesses located in remote areas.
- the essence of the technical solution consists in the use of a structural-power scheme, in which the device is equipped with three-feet with a disk platform, on which a mounting housing is located, inside which there is a rotation shaft separated from the outer housing by centering bearings, a generator and a starter.
- the blades of the wind generator are spaced apart from the axis of rotation by wing flaps.
- the proposed wind turbine belongs to wind power plants (WPP) with a vertical axis of rotation Darrieus.
- vertical wind turbines run at lower rpms and are therefore much quieter.
- vertical turbines are independent of wind direction.
- Vertical wind turbines are compact and can be integrated into urban architecture.
- the Darrieus wind turbine has one major disadvantage, which is the start-up problem.
- Starting a vertical turbine requires an aerodynamic moment, which is created by the thrust force acting on the blades in a pulsating flow.
- Experimental studies have shown that vertical wind turbines have a positive value of the wind energy utilization factor CN at certain values of TSR (tip speed ratio)
- Starting the rotor requires the creation of a torque corresponding to the optimal value at which the rotor enters the self-rotation mode [Gorelov, 2012].
- the invention relates to Darrieus wind turbines with a vertical axis of rotation described in (W01995009304A1).
- This design has a long rotating shaft, which must be fixed in two places: at the top and at the bottom, vertical symmetrical profiles are parallel to the rotation shaft and connected to the shaft by means of horizontal traverses.
- the closest solution is a wind turbine supported by a bearing system to rotate around a vertical axis to capture wind energy, an alternator that is driven directly from the rotor and converts the rotational energy from the rotor into electrical energy (see EP2220759A1, F03D80 / 70).
- the purpose of the invention is to create such a wind power plant with a Darrieus rotor, which would significantly shorten the length of the rotating shaft, as well as increase the ability to self-start at lower wind speeds.
- a wind power plant including a rotation shaft with a flywheel (2) (see Fig. 1), is installed inside a stationary rack (3), the lower end of which is installed on the lower platform (1).
- the shaft and the fixed column are separated from each other by two centering bearings (4) and (5).
- the post is bolted to the platform (13).
- a platform (7) is installed on the rotation shaft for fastening the wing struts (8).
- the wing struts are attached to the mounting platform with bolts (10).
- Blades (12) NASA-0021 are installed to the spacers using nuts (11).
- the generator (14) and starter (15) are located inside the lower platform.
- the complete wind turbine is installed on the legs (16). The design makes it possible to move the main element - a wind turbine, outside the surface boundary layer and thereby remove wind energy in the area of potential wind movement, where the average wind speed is 2-3 times higher than the average wind speed of the surface boundary layer.
- the claimed technical result is to ensure self-starting of the turbine by creating torque by the starter (15), and the invention also proposes a method for solving one complex technological problem.
- Application of the proposed design of the wind turbine will simplify the manufacturing technology.
- the shaft does not require high design requirements, since the shaft does not have an original surface. All these factors greatly simplify the manufacturing technology of a wind power plant, by about 25-30%. It should be noted that it is the problem of a long vertical shaft that is the main one that hinders the widespread use of rotary wind turbines in practice.
- a wind turbine with a shortened structure has a number of advantages from the point of view of manufacturability assessment, since the structure is oriented towards manufacturing in small workshops, which results in a reduction in technological costs.
- This design also has the advantage for transportation to remote areas for use by farmers and small businesses, as it is completely collapsible.
- the start of the wind power plant will be provided by a starter, which is an electromechanical device with a principle of operation based on the use of electrical energy received from a battery and converting it into mechanical energy, that is, creating a torque, engaging the teeth of its working gear with the teeth of the flywheel rim of the rotation shaft ( 2).
- the starter shaft transmitting the torque to the flywheel (2) of the turbine, ensures the start of the power plant, transferring the initial torque to the wind power plant.
- This design will allow the unit to start spinning spontaneously even at a wind speed of 2-3 m / s. Used sources
Abstract
The invention relates to wind power installations with Darrieus rotors. A wind-power installation comprises a vertical stationary post which is connected to an installation housing and a vertical rotary shaft which is separated from the installation housing by centering bearings. The rotor shaft is connected to vanes by struts. The wind turbine is installed on legs with a broad platform on which a flywheel, a generator and a starter are installed. The vanes are provided with a NACA 0021 symmetrical profile. The invention is directed to improving the ability to self-start and to simplifying the manufacturing technology of wind power installations.
Description
Ветротурбина Дарье с системой самозапуска Darrieus wind turbine with self-starting system
Изобретение относится к ветряным двигателям и может быть использовано для получения электрической энергии. The invention relates to wind turbines and can be used to generate electrical energy.
Устройство используется для получения киловаттных мощностей электроэнергии посредством преобразования кинетической энергии ветра в электрическую для применения фермерских хозяйств и в малом бизнесе расположенных в отдаленных районах. The device is used to obtain kilowatt power of electricity by converting the kinetic energy of the wind into electrical energy for the use of farms and small businesses located in remote areas.
Сущность технического решения состоит в приминении конструкционно-силовой схемы, при котором устройство оснащено трехножками с дисковой площадкой, на которой располагается установочный корпус, внутри которого находится вал вращения отделенный от наружного корпуса центрирующими подшипниками, генератор и стартер. Лопасти ветрогенератора разнесены в стороны от оси вращения крыловыми махами. The essence of the technical solution consists in the use of a structural-power scheme, in which the device is equipped with three-feet with a disk platform, on which a mounting housing is located, inside which there is a rotation shaft separated from the outer housing by centering bearings, a generator and a starter. The blades of the wind generator are spaced apart from the axis of rotation by wing flaps.
Предложенный ветроагрегат относится к ветроэнергетическим установкам (ВЭУ) с вертикальной осью вращения Дарье. The proposed wind turbine belongs to wind power plants (WPP) with a vertical axis of rotation Darrieus.
В отличии от горизонтальный ветротурбин, вертикальные ветротурбины работают на меньших оборотах, следовательно они намного тише. С другой стороны вертикальные турбины не зависят от направления ветра. Вертикальные ветротурбины компактны и могут быть интегрированы в городскую архитектуру. Unlike horizontal wind turbines, vertical wind turbines run at lower rpms and are therefore much quieter. On the other hand, vertical turbines are independent of wind direction. Vertical wind turbines are compact and can be integrated into urban architecture.
Несмотря на вышеуказанные преимущества, ветроэнергетическая установка Дарье имеют один главный недостаток, который заключается в проблеме запуска. Запуск вертикальной турбины требует аэродинамический момент, который создается силой тяги действующего на лопасти в пульсирующем потоке. Экспериментальные исследования показали что вертикальные ветротурбины имеют положительное значение коэффицента использования энергии ветра CN при определенных значениях TSR (tip speed ratio) Запуск ротора требует создания крутящего момента соответствующего оптимальному значению, при котором ротор выходит в режим самостотельного вращения [Горелов, 2012]. Despite the above advantages, the Darrieus wind turbine has one major disadvantage, which is the start-up problem. Starting a vertical turbine requires an aerodynamic moment, which is created by the thrust force acting on the blades in a pulsating flow. Experimental studies have shown that vertical wind turbines have a positive value of the wind energy utilization factor CN at certain values of TSR (tip speed ratio) Starting the rotor requires the creation of a torque corresponding to the optimal value at which the rotor enters the self-rotation mode [Gorelov, 2012].
Изобретение относится к ветротурбинам Дарье с вертикальной осью вращения описанной в (W01995009304A1). Данная конструкция имеет длинный вращающийся вал который должен быть закреплен в двух местах: вверху и внизу, вертикальные симметричные профили параллельны валу вращения и соеденины с с валом при помощи горизонтальных траверсов. The invention relates to Darrieus wind turbines with a vertical axis of rotation described in (W01995009304A1). This design has a long rotating shaft, which must be fixed in two places: at the top and at the bottom, vertical symmetrical profiles are parallel to the rotation shaft and connected to the shaft by means of horizontal traverses.
Главным недостатком данного решения является то, что для начала вращения требуется существенный крутящий момент. Для увеличения отметаемой лопастями площади используются дополнительные щитки. В зависимости от скорости ветра данные щитки меняют положение, для повышения подъемной силы действующей на лопасти в
ветровом потоке. Регулирование щитков осуществляется при помощи автоматизированной системы управления, что повышает затраты на изготовление. The main disadvantage of this solution is that significant torque is required to start rotation. To increase the area swept away by the blades, additional shields are used. Depending on the wind speed, these flaps change position to increase the lift acting on the blades in wind flow. The flaps are regulated by an automated control system, which increases manufacturing costs.
Наиболее близким решением является ветротурбина поддерживаемая системой подшипников для вращения вокруг вертикальной оси для захвата энергии ветра, генератор переменного тока, которой приводится в действие непосредственно от ротора и преобразует вращательную энергию от ротора в электрическую энергию (см. ЕР2220759А1, F03D80/70). The closest solution is a wind turbine supported by a bearing system to rotate around a vertical axis to capture wind energy, an alternator that is driven directly from the rotor and converts the rotational energy from the rotor into electrical energy (see EP2220759A1, F03D80 / 70).
Главным недостатком данного решения является сложность конструкции который увеличивает себестоимость. Для контролирования самозапуска необходим электронный контролер, который предотвращает пассивный самозамуск. The main disadvantage of this solution is the complexity of the design, which increases the cost. To control self-starting, an electronic controller is required, which prevents passive self-starting.
Цель изобретения - создание такой ветросиловой установки с ротором Дарье, которая позволила бы существенно укоротить длину врашаюшего вала, а также повысить способность к самозапуску при меньших значениях скорости ветра. The purpose of the invention is to create such a wind power plant with a Darrieus rotor, which would significantly shorten the length of the rotating shaft, as well as increase the ability to self-start at lower wind speeds.
Ветроэнергетическая установка, включающая вал вращения с маховиком (2) (см. фиг. 1), устанавливается внутри неподвижной стойки (3) нижний конец котогоро устанавливается на нижней платформе (1). Вал и неподвижная стойка отделены друг от дурга двумя центрирующими подшипниками (4) и (5). Стойка крепится к платформе при помощи болтовых соединений (13). На вал вращения устанавливается площадка (7) для крепления распорок крыла (8). Распорки крыла крепятся к установочной площадке при помощи болтов (10). К распоркам при помощи гаек (11) устанавливаются лопасти (12) NASA-0021. Внутри нижней платформы размещаются генератор (14) и стартер (15). Ветроэнергетическая установка в сборе устанавливаются на ножки (16). Конструкция позволяет вынести основной элемент - ветротурбину, за пределы приземного пограничного слоя и тем самым снимать ветровую энергию в области потенциального движения ветра, где средняя скорость ветра в 2-3 раза выше от средней скорости ветра приземного пограничного слоя. A wind power plant, including a rotation shaft with a flywheel (2) (see Fig. 1), is installed inside a stationary rack (3), the lower end of which is installed on the lower platform (1). The shaft and the fixed column are separated from each other by two centering bearings (4) and (5). The post is bolted to the platform (13). A platform (7) is installed on the rotation shaft for fastening the wing struts (8). The wing struts are attached to the mounting platform with bolts (10). Blades (12) NASA-0021 are installed to the spacers using nuts (11). The generator (14) and starter (15) are located inside the lower platform. The complete wind turbine is installed on the legs (16). The design makes it possible to move the main element - a wind turbine, outside the surface boundary layer and thereby remove wind energy in the area of potential wind movement, where the average wind speed is 2-3 times higher than the average wind speed of the surface boundary layer.
Заявленным техническим результатом является обеспечение самозапуска турбины путем создания крутящего момента стартером (15), а также в изобретении предлагается способ решения одной сложной технологической задачи. Отказаться от длинного вращающегося вала и заменить его на короткую ось (2), на которой будут вращаться два подшипника (4), (5) с прикрепленному к ним ветровому колесу. Применение предлагаемой конструкции ветроустановки позволит упростить технологию изготовления. В старой конструкции необходимо было иметь длинный вращающийся вертикальный вал, который должен быть закреплен в двух местах внизу и сверху.
Для вала не требуется высоких конструктивные требований, так как вал не имеет оригинальной поверхности. Все эти факторы значительно упрощают технологию изготовления ветровой энергоустановки, примерно на 25-30%. Следует отметить, что именно проблема длинного вертикального вала является основной, сдерживающей ши- рокое применение роторных ветроустановок на практике. The claimed technical result is to ensure self-starting of the turbine by creating torque by the starter (15), and the invention also proposes a method for solving one complex technological problem. Discard the long rotating shaft and replace it with a short axle (2), on which two bearings (4), (5) with a wind wheel attached to them will rotate. Application of the proposed design of the wind turbine will simplify the manufacturing technology. In the old design, it was necessary to have a long rotating vertical shaft, which had to be fixed in two places at the bottom and top. The shaft does not require high design requirements, since the shaft does not have an original surface. All these factors greatly simplify the manufacturing technology of a wind power plant, by about 25-30%. It should be noted that it is the problem of a long vertical shaft that is the main one that hinders the widespread use of rotary wind turbines in practice.
Ветроэнергетическая установка с укороченной конструкцией с точки оценки на технологичность имеет ряд преимуществ, так как конструкция ориентирована на изготовление в небольших цехах, что дает снижение технологической себестоимости. Данная конструкция также имеет преимущество для транспортировки в одаленные районы для применения фермерских хозяйств и в малом бизнесе, так как является полностью сборно-разборной. A wind turbine with a shortened structure has a number of advantages from the point of view of manufacturability assessment, since the structure is oriented towards manufacturing in small workshops, which results in a reduction in technological costs. This design also has the advantage for transportation to remote areas for use by farmers and small businesses, as it is completely collapsible.
Запуск ветроэнергетической установки будет обеспечиваться стартером, являющийся электромеханическим прибором, имеющий принцип действия, основанный на использовании электрической энергии, получаемой от аккумлятора, и преобразовании ее в энергию механическую, то есть создания крутящего момента, зацепляя зубьев ее рабочей шестерни с зубьями венца маховика вала вращения (2). Вал стартера, передавая вращающий момент маховику (2) турбины обеспечивает пуск силовой установки, передавая начальный вращательный момент ветроэнергетической установке. Данная конструкция позволит агрегату начать самопроизвольно вращаться уже при скорости ветра 2-3 м/с. Использованные источники The start of the wind power plant will be provided by a starter, which is an electromechanical device with a principle of operation based on the use of electrical energy received from a battery and converting it into mechanical energy, that is, creating a torque, engaging the teeth of its working gear with the teeth of the flywheel rim of the rotation shaft ( 2). The starter shaft, transmitting the torque to the flywheel (2) of the turbine, ensures the start of the power plant, transferring the initial torque to the wind power plant. This design will allow the unit to start spinning spontaneously even at a wind speed of 2-3 m / s. Used sources
1. Egon Gelhard, Wind turbine with a darrieus h-rotor, W01995009304A1, F03D7/061.Egon Gelhard, Wind turbine with a darrieus h-rotor, W01995009304A1, F03D7 / 06
2. Christopher W. Gabrys, Self-starting darrieus wind turbine, F03D80/70 2. Christopher W. Gabrys, Self-starting darrieus wind turbine, F03D80 / 70
3. Д.Н.Горелов, Аэродинамика ветроколес с вертикальной осью вращения, Омск: Полиграфический центр «КАН», 2012, - 68 с.
3. DN Gorelov, Aerodynamics of wind turbines with a vertical axis of rotation, Omsk: Polygraphic center "KAN", 2012, - 68 p.
Claims
1. Ветротурбина Дарье с системой самозапуска отличающаяся тем, что вал вращения короткий и отделен от неподвижной стойки центрирующими подшипниками, соединенный с лопастями при помощи распорок. Применение предлагаемой конструкции ветроустановки позволит упростить технологию изготовления;1. A Darrieus wind turbine with a self-starting system, characterized in that the rotation shaft is short and separated from the stationary rack by centering bearings, connected to the blades by means of spacers. Application of the proposed design of the wind turbine will simplify the manufacturing technology;
2. Устройство по и.1 отличающаяся тем, что обеспечение самозапуска турбины путем создания крутящего момента стартером; 2. The device according to i.1, characterized in that the provision of self-starting of the turbine by creating a torque by the starter;
3. Устройство по п.1 отличающаяся тем, что ветроэнергетическая установка в сборе устанавливаются на ножки. В верхней части имеется достаточно широкая площадка. Конструкция позволяет вынести основной элемент - ветротурбину, за пределы приземного пограничного слоя и тем самым снимать ветровую энергию в области потенциального движения ветра, где средняя скорость ветра в 2-3 раза выше от средней скорости ветра приземного пограничного слоя
3. The device according to claim 1, characterized in that the complete wind turbine is mounted on the legs. There is a fairly wide platform in the upper part. The design allows you to move the main element - a wind turbine, outside the surface boundary layer and thereby remove wind energy in the area of potential wind movement, where the average wind speed is 2-3 times higher than the average wind speed of the surface boundary layer
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KZ2020/000014 WO2021256912A1 (en) | 2020-06-19 | 2020-06-19 | Darrieus wind turbine with starting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KZ2020/000014 WO2021256912A1 (en) | 2020-06-19 | 2020-06-19 | Darrieus wind turbine with starting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021256912A1 true WO2021256912A1 (en) | 2021-12-23 |
Family
ID=79268181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KZ2020/000014 WO2021256912A1 (en) | 2020-06-19 | 2020-06-19 | Darrieus wind turbine with starting system |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2021256912A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918839A (en) * | 1974-09-20 | 1975-11-11 | Us Energy | Wind turbine |
| WO2009075853A1 (en) * | 2007-12-12 | 2009-06-18 | Mariah Power, Inc. | Self-starting darrieus wind turbine |
| RU2539604C2 (en) * | 2011-08-30 | 2015-01-20 | Зураб Автандилович Отарашвили | Wind-driven power plant |
| CN205578184U (en) * | 2016-04-22 | 2016-09-14 | 公安海警学院 | Wind power aerator |
| CN108612622A (en) * | 2018-04-17 | 2018-10-02 | 江苏力沛电力工程技术服务有限公司 | A kind of wind power plant and application method |
-
2020
- 2020-06-19 WO PCT/KZ2020/000014 patent/WO2021256912A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918839A (en) * | 1974-09-20 | 1975-11-11 | Us Energy | Wind turbine |
| WO2009075853A1 (en) * | 2007-12-12 | 2009-06-18 | Mariah Power, Inc. | Self-starting darrieus wind turbine |
| RU2539604C2 (en) * | 2011-08-30 | 2015-01-20 | Зураб Автандилович Отарашвили | Wind-driven power plant |
| CN205578184U (en) * | 2016-04-22 | 2016-09-14 | 公安海警学院 | Wind power aerator |
| CN108612622A (en) * | 2018-04-17 | 2018-10-02 | 江苏力沛电力工程技术服务有限公司 | A kind of wind power plant and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5133637A (en) | Vertical axis wind turbine generator | |
| EP2660466B1 (en) | Impact type wind-driven power generating device | |
| US8648483B2 (en) | Vertical axis wind turbine system | |
| US7709971B2 (en) | Linear wind-powered electric generator | |
| JP2012527864A5 (en) | ||
| WO1994024435A1 (en) | Solar venturi turbine | |
| JP2003148323A (en) | Fluid power generation device | |
| CN109630352B (en) | Air compression type vertical wind generating set | |
| CN101949360A (en) | Co-rotating double-blade vertical wind driven generator | |
| CN104131952A (en) | Vertical-axis wind driven generator | |
| JPH11294313A (en) | Hybrid windmill type power generation system | |
| CN103016261A (en) | Two-sectional variable-pitch and fixed-pitch combined blade device for large wind-driven generator | |
| RU2382233C2 (en) | Vertical rotation axle windmill | |
| US20120061972A1 (en) | Vertical-axis wind turbine | |
| WO2021256912A1 (en) | Darrieus wind turbine with starting system | |
| CN202300829U (en) | Double-fan-blade wind-driven generator | |
| AU6622894A (en) | Solar venturi turbine | |
| CN211258886U (en) | Wind power generator | |
| RU104252U1 (en) | WIND POWER PLANT | |
| US20170107972A1 (en) | Vertical wind turbine | |
| CN204827795U (en) | Vertical axis aerogenerator | |
| CN102269121A (en) | Vertical-axis wind driven rotating power generation system | |
| CN202176454U (en) | Vertical shaft wind power rotating generating system | |
| RU2249722C1 (en) | Rotary wind power station | |
| RU2210000C1 (en) | Rotary windmill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20940586 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 20940586 Country of ref document: EP Kind code of ref document: A1 |