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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 7477. Отображено 200.
29-05-2018 дата публикации

СПОСОБ И ВЕТРОЭНЕРГЕТИЧЕСКАЯ УСТАНОВКА ДЛЯ ПРЕДУПРЕЖДЕНИЯ О МОЛНИИ

Номер: RU2655656C2

Использование: в области электротехники. Технический результат – повышение точности и надежности способа предупреждения о молниях. Согласно способу предупреждение о молнии осуществляется множеством ветроэнергетических установок, в частности частью ветрового парка. Ветроэнергетические установки находятся соответственно в некотором местоположении, и каждая из множества ветроэнергетических установок имеет узел датчиков для регистрации параметра окружающей среды, содержащий по меньшей мере анемометр, датчик температуры и/или датчик влажности, причем узел датчиков включает в себя дополнительный датчик, в частности измеритель электрического поля для регистрации электрических полей. Способ включает в себя следующие этапы: регистрацию по меньшей мере одного значения для параметра окружающей среды, по меньшей мере включающего в себя электрическое поле, с помощью датчиков узла датчиков с множеством ветроэнергетических установок; и оценивание по меньшей мере одного значения для параметра окружающей ...

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09-08-2017 дата публикации

ВЕТРОЭНЕРГЕТИЧЕСКАЯ УСТАНОВКА И БЛОК МОЛНИЕЗАЩИТЫ ДЛЯ ВЕТРОЭНЕРГЕТИЧЕСКОЙ УСТАНОВКИ

Номер: RU2627618C2

Изобретение относится к ветроэнергетической установке и блоку молниезащиты для ветроэнергетической установки. Ветроэнергетическая установка включает гондолу (104) и ротор, который имеет по меньшей мере две лопасти (108) ротора. Лопасти (108) ротора имеют каждая комлевую часть (108a) лопасти ротора, по меньшей мере один металлический проводник (220), служащий проводником для ударившей молнии, и соединенное с ним проводящее кольцо (230), которое предусмотрено в области комлевой части лопасти ротора. На невращающейся части гондолы (104) закреплен блок (240) молниезащиты таким образом, что блок (240) молниезащиты опирается на кольцо (230). Блок (240) молниезащиты имеет два ролика (241) и молниеотводную мачту (242), при этом свободный конец молниеотводной мачты (242) находится от наружного конца роликов (241) на расстоянии, задающем искровой промежуток. Изобретение направлено на повышение надежности отвода молнии в области лопасти. 2 н. и 3 з.п. ф-лы, 3 ил.

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25-12-2020 дата публикации

ВЕТРОЭНЕРГЕТИЧЕСКАЯ СИСТЕМА С НИЗКИМИ ЭЛЕКТРОМАГНИТНЫМИ ПОМЕХАМИ

Номер: RU2739513C1
Принадлежит: ЛАГЕРВЕЙ ВИНД Б.В. (NL)

Настоящее изобретение относится к ветряной турбине с низким испусканием электромагнитного излучения. Представлена ветряная турбина (1) с переменной скоростью вращения ротора с номинальной мощностью более 1 МВт и диаметром ротора по меньшей мере 50 м, содержащая несколько основных частей, таких как башня (2), гондола (3), которая может быть объединена с генератором (4) прямого привода, ступица (5) и по меньшей мере одна лопасть (6), дополнительно содержащая трансформатор (7) и главный преобразователь (8) для адаптации переменной частоты энергии генератора к частоте сети, причем ветряная турбина выполнена с возможностью уменьшения испускания электромагнитного (EM) излучения, в частности, в диапазоне от 10 до 250 МГц, причем ветряная турбина содержит первую основную часть и вторую основную часть, причем эти части шарнирно соединены друг с другом, и при этом любая из указанных частей содержит экран для электромагнитного излучения, который окружает устройство, которое может быть источником электромагнитного ...

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07-02-2019 дата публикации

Rotorblatt einer Windenergieanlage und Verfahren zum Nachrüsten einer Blitzschutzeinrichtung eines Rotorblatts

Номер: DE102017007371A1
Принадлежит:

Verfahren zum Nachrüsten einer Blitzschutzeinrichtung eines Rotorblatts (17) einer Windenergieanlage. Bei dem Verfahren wird ein Kabelabschnitt (24) eines Blitzschutzkabels (19) abisoliert. Ein Anschlussstück (25) und ein Blitzschutzrezeptor (33) werden an dem abisolierten Kabelabschnitt (24) angebracht, so dass der Blitzschutzrezeptor (33) elektrisch mit dem Blitzschutzkabel (19) gekoppelt ist. Die Erfindung betrifft außerdem ein mit dem Verfahren nachgerüstetes Rotorblatt (17). Mit der Erfindung kann im Wege der Nachrüstung das Risiko von Blitzeinschläge in bestimmten Bereichen eines Rotorblatts (17) vermindert werden.

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27-06-1996 дата публикации

Wind turbine generator with lighting protection

Номер: DE0004445899A1
Принадлежит:

The wind turbine generator has a mat (10) supporting an electricity generator at its top end, driven by a wind turbine rotor. The rotor blades (14) are each provided with at least one conductor path (17) extending along their length, which are galvanically separated from earth potential during normal operation. A low-ohmic connection is provided between the rotor blade conductor paths and earth in the presence of atmospheric lightning, via discharge paths (23,30,31) an earth line (29), to provide lightning protection.

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18-08-2016 дата публикации

Rotor blade tip

Номер: AU2013347012B2

The invention relates to a rotor blade (30) of a wind turbine (100), comprising a main blade part and a blade tip (260), the blade tip (260) being detachably fastened to the main part by means of a connecting device (202). The connecting device (202) comprises a tip section (206) fastened to the blade tip (260) and a base section (204) for receiving the tip section (206), said base section being fastened to the main blade part. The tip section (206) comprises at least one securing means (242) for securing the tip section (206) to the base section (204), said securing means extending at least to the base section (204). The securing means (242) can be actuated through an opening (286) in the surface (282) of the blade tip (260) to secure the tip section.

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24-08-2017 дата публикации

Lightning protection device, direct-drive wind turbine generator system and lightning protection method thereof

Номер: AU2014352342B2
Принадлежит: Madderns Patent & Trade Mark Attorneys

A lightning protection device comprises a lightning receptor arranged on a nonmetal blade (1) for receiving the lightning current and a blade downlead (2) electrically connected to the lightning receptor; a first lightning current guide component (3) electrically connected with the blade downlead (2) and connected with the outer surface of a generator rotor (5) in an insulation manner; a second lightning current guide component (7) connected with the outer surface of the generator rotor and an insulated cabin cover (6) in an insulation manner, and electrically connected with the first lightning current guide component (3) by a metal conductor (9); a lightning protection downlead (11) for electrically connecting the second lightning current guide component (7) with a grounding component (15) arranged in a tower, so as to discharge the lightning current into the ground through the tower. A direct-drive wind turbine generator system and a lightning protection method thereof are also disclosed ...

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21-07-2020 дата публикации

SPAR CAP AND PRODUCTION METHOD

Номер: CA0003011493C
Принадлежит: WOBBEN PROPERTIES GMBH

The invention relates to a spar cap for a rotor blade of a wind energy plant, having a longitudinal extension from a first end to a second end, a transverse extension orthogonal to the longitudinal extension and a thickness orthogonal to the longitudinal extension and the transverse extension. The invention further relates to a method for producing the aforementioned spar cap. The spar cap has a longitudinal extension from a first end to a second end, a transverse extension orthogonal to the longitudinal extension and a thickness orthogonal to the longitudinal extension and the transverse extension. The spar cap comprises at least two layers of a first fiber composite material and at least one layer of a second fiber composite material, the first fiber composite material having another matrix material and/or other fibers than the second fiber composite material, wherein the second fiber composite material is disposed in a portion adjacent to the second end in the direction of the thickness ...

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03-08-2017 дата публикации

SPAR CAP AND PRODUCTION METHOD

Номер: CA0003011493A1
Принадлежит:

The invention relates to a spar cap for a rotor blade of a wind energy plant, having a longitudinal extension from a first end to a second end, a transverse extension orthogonal to the longitudinal extension and a thickness orthogonal to the longitudinal extension and the transverse extension. The invention further relates to a method for producing the aforementioned spar cap. The spar cap has a longitudinal extension from a first end to a second end, a transverse extension orthogonal to the longitudinal extension and a thickness orthogonal to the longitudinal extension and the transverse extension. The spar cap comprises at least two layers of a first fiber composite material and at least one layer of a second fiber composite material, the first fiber composite material having another matrix material and/or other fibers than the second fiber composite material, wherein the second fiber composite material is disposed in a portion adjacent to the second end in the direction of the thickness ...

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15-02-2018 дата публикации

LUMINOUS ELEMENT AND METHOD FOR ILLUMINATING A COMPONENT OF A WIND ENERGY INSTALLATION, AND COMPONENTS FOR A WIND ENERGY INSTALLATION AND WIND ENERGY INSTALLATION

Номер: CA0003033320A1
Принадлежит: OYEN WIGGS GREEN & MUTALA LLP

The invention relates to a luminous element for illuminating a component of a wind energy installation, in particular a rotor blade and/or a rotor and/or a tower and/or a nacelle. Furthermore, the invention relates to a component for a wind energy installation, in particular a rotor blade and/or a rotor and/or a nacelle and/or a tower for a wind energy installation. The invention furthermore relates to a wind energy installation and to a method for illuminating a component of a wind energy installation. The luminous element comprises a luminous section and a connection section, wherein the connection section is arranged and designed to be connected in an interior of the component, and the luminous section is arranged and designed to project from an opening in the component, and the luminous section is arranged and designed to illuminate the component from which it projects.

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12-06-2018 дата публикации

WIND POWER GENERATION APPARATUS WITH LIGHTNING RECEIVING SECTION

Номер: CA0002917021C
Принадлежит: HITACHI, LTD., HITACHI LTD

Provided is a wind power generation apparatus including a wind turbine blade that has a blade body and a receptor mounted on a tip of the blade body. The receptor includes a solid blade outer portion that is positioned on an outside of a tip opening portion of the blade body and a blade inner portion that is positioned on an inside of the tip opening portion. The blade inner portion includes a portion of which a size in a width direction or a thickness direction is greater than a size of an inner wall of the blade tip opening portion in the width direction or the thickness direction. An internal conductor connected to the receptor is provided on an inside of the blade tip opening portion. A fastening unit that fastens the blade inner portion and the blade body is provided. A portion of the blade inner portion of the receptor on which the fastening unit is mounted is formed in a block shape so as to cover the fastening unit in a length direction thereof.

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31-05-2019 дата публикации

Wind generating set, wind generating set conductivity detecting system and lightning protection system detection method

Номер: CN0109826762A
Автор: HUANG JINPENG
Принадлежит:

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12-12-2017 дата публикации

Engine room cover assembly

Номер: CN0206738083U
Принадлежит:

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28-08-2018 дата публикации

Safety type wind power generation device of generator set with anti-icing function

Номер: CN0108457815A
Автор: CAO YANHONG
Принадлежит:

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02-09-2016 дата публикации

LIGHTNING PROTECTION DEVICE

Номер: FR0003024298B1
Принадлежит: ARIANEGROUP SAS

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13-03-2018 дата публикации

WIND TURBINE WITH LIGHTNING PROTECTION SYSTEM

Номер: BR112017013791A2
Принадлежит:

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16-01-2017 дата публикации

Wind power generation apparatus

Номер: TW0201702481A
Принадлежит:

Provided is a wind power generation apparatus including a wind turbine blade that has a blade body and a receptor mounted on a tip of the blade body. The receptor includes a solid blade outer portion that is positioned on an outside of a tip opening portion of the blade body and a blade inner portion that is positioned on an inside of the tip opening portion. The blade inner portion includes a portion of which a size in a width direction or a thickness direction is greater than a size of an inner wall of the blade tip opening portion in the width direction or the thickness direction. An internal conductor connected to the receptor is provided on an inside of the blade tip opening portion. A fastening unit that fastens the blade inner portion and the blade body is provided. A portion of the blade inner portion of the receptor on which the fastening unit is mounted is formed in a block shape so as to cover the fastening unit in a length direction thereof.

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28-05-2020 дата публикации

ROTOR BLADE HAVING AN ELECTRIC POTENTIAL EQUALISATION ELEMENT, AND A METHOD FOR THE PRODUCTION THEREOF

Номер: WO2020104585A1
Принадлежит:

The invention relates to a rotor blade of a wind power plant comprising a belt (1, 2), which has carbon fibres (4) and which is covered on the rotor bade outer side by an electrically conductive protective layer (13, 14), and a lightning rod (16), which is connected to the electrically conductive protective layer (13, 14). A potential equalisation element (9) having a plurality of electrically conductive pins (12), which start from an electrically conductive main body (11) and which are pressed into the belt (1, 2) is provided, wherein at least some of the carbon fibres (4) are electrically conductively contacted with the pins (12), and the potential equalisation element (9) is electrically conductively connected to the electrically conductive protective layer (13, 14).

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11-05-2018 дата публикации

LIGHTNING PROTECTION SYSTEM FOR A ROTOR BLADE WITH A WINGLET

Номер: WO2018082916A1
Принадлежит:

The invention relates to a rotor blade (20) of a wind turbine (10), the rotor blade (20) comprising a winglet (202) and a lightning protection system (30) with at least one lightning receptor (31). The lightning receptor (31) is located at the tip section (22) of the rotor blade (20). Additionally, the rotor blade (20) comprises at least one lightning diverter (40) containing an electrically conductive material, wherein the lightning diverter (40) terminates at the lightning receptor (31) and is located at least partially on the surface of the winglet (202). Furthermore, the invention relates to a method to improve a lightning protection system (30) of a rotor blade (20) of a wind turbine (10) with a winglet (202).

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30-04-2020 дата публикации

LIGHTNING PROTECTION OF A SECTIONED WIND TURBINE BLADE

Номер: WO2020084053A1
Принадлежит:

Disclosed is wind turbine blade and a spar beam for structurally connecting a first blade section and a second blade section of a wind turbine blade. The spar beam comprises a first fibre reinforced element extending parallel to a spar beam axis. The spar beam comprising a conductive beam sheath circumscribing at least a beam sheath angular distance of the spar beam about the spar beam axis and longitudinally extending from a fourth beam axis position to a fifth beam axis position. The first fibre reinforced element is positioned between the conductive beam sheath and the spar beam axis.

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28-11-2019 дата публикации

WyndBlade / New blade for Wind Turbines

Номер: US2019360456A1
Принадлежит:

This blade is a new Frame based design that produces more Energy from the wind then its Fiberglass equivalent in the same size and scale of production. Built to be modular in 40 ft sections with easy airfoil replacement this blade solves major Transportation and costly Maintenance issues, at ⅓rd the weight, when compared to conventional blades used in the industry today.

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01-12-2020 дата публикации

Method for sensing lightning-current parameters at installations having one or more capturing devices and lightning-current diversion paths

Номер: US0010852339B2

The invention relates to a method for sensing lightning-current parameters at installations comprising a plurality of capturing devices and lightning-current diversion paths, in particular for exposed and/or tall buildings, including wind turbines, by using a plurality of sensors on the lightning-current diversion paths to identify a lightning-current event, and comprising subsequent evaluation of the lightning-current event and the effect of the lightning-current event on the particular installation. According to the invention, a lightning-current detection sensor is formed on each of the capturing devices or each lightning-current diversion path, which lightning-current detection sensor provides a yes/no statement concerning a lightning-current event with respect to the particular capturing device or the particular lightning-current diversion path. Furthermore, at least one lightning-current measurement sensor is provided at a central point of the merging of the lightning-current diversion ...

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11-09-2018 дата публикации

Wind turbine blade having a conductive root bushing

Номер: US0010072636B2
Автор: Lars Bo Hansen
Принадлежит: LM WP PATENT HOLDING A/S

A wind turbine blade is described having a lightning protection system wherein a lightning down conductor is conductively coupled to at least one blade root bushing provided at the root end of the blade. The use of the blade root bushing as part of the conductive path of the lightning protection system allows for a structurally sound and reliable connection of an internal down conductor to an external lightning protection system and/or to a suitable ground connection at the blade root end.

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17-06-2020 дата публикации

A WIND TURBINE LIGHTNING PROTECTION SYSTEM AND WIND TURBINE BLADE

Номер: EP2633186B1
Автор: ERICHSEN, Hans, V.
Принадлежит: Vestas Wind Systems A/S

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01-09-2021 дата публикации

WIND TURBINE BLADE

Номер: EP3872339A1
Принадлежит:

A wind turbine blade is provided, which includes a blade body extending from a blade root toward a blade tip along a blade length direction, a first sprayed layer disposed so as to cover at least a leading edge on a side of the blade tip of the blade body, for suppressing erosion of the leading edge of the blade body, a second sprayed layer formed between the blade body and the first sprayed layer, and having a lower electrical resistivity than the first sprayed layer, and a first conductive part for electrically connecting the second sprayed layer to a ground.

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21-02-2018 дата публикации

WIND POWER SYSTEM FOR GENERATING ELECTRIC ENERGY

Номер: EP3284948A1
Принадлежит:

A wind power system (1) having a tower (2); a nacelle (3) fitted to the tower (2) to rotate about a first axis (A1); a hub (4) fitted to the nacelle (3) to rotate about a second axis (A2); and at least one blade (6) fitted to the hub (4) to rotate about a third axis (A3); and wherein an elastic conducting member is connected to the blade (6) and the nacelle (3) to connect the blade (6) electrically to the nacelle (3).

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22-11-2017 дата публикации

LOCATING A LIGHTNING STRIKE AT A WIND TURBINE

Номер: EP3246563A1
Автор: Nieuwenhuizen, John
Принадлежит:

A method is proposed for locating a lightning strike (170) at a wind turbine (100) comprising the following steps, - detecting a lightning strike (170), - deriving a location (180) of the lightning strike (170) based on a measurement of sound caused by the lightning strike (170). Further, a lightning detection system, a wind turbine, a wind farm as well as a computer program product and a computer readable medium are suggested for performing said method.

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05-04-2017 дата публикации

WIND TURBINE BLADE AND METHOD OF REPAIRING THE SAME

Номер: EP2963289B1
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

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01-09-2021 дата публикации

LIGHTNING PROTECTION FOR A WIND TURBINE BLADE

Номер: EP3870837A1
Принадлежит:

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29-06-2022 дата публикации

METHOD FOR TESTING A LIGHTNING PROTECTION SYSTEM IN A WIND TURBINE ROTOR BLADE

Номер: EP4018092A1
Автор: JANSEN, Gerhard
Принадлежит:

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02-02-2022 дата публикации

A BLADE FOR A ROTOR OF A WIND TURBINE COMPRISING INTERNALLY A CONTINOUS CABLE ARRANGEMENT INTENDED TO MEASURE CONDUCTIVITY

Номер: EP3945209A1
Принадлежит:

Blade (1) comprising inwardly a continuous cable arrangement (2) intended to measure conductivity for blade lightning protection, wherein the cable arrangement (2) comprises an upper portion (4) and a lower portion (3) extending therebetween the blade root (8) and the blade tip (9), said lower portion (3) electrically in contact with the upper portion (2) closing an electrical loop, and wherein the blade (1) further comprises an electrical connector element (7) located at the blade root (8) and electrically in contact with the upper portion (3) and the lower portion (3), said electrical connector element (7) protruding exteriorly on the blade root (8) so that conductivity of the blade (1) can be measured.

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11-09-2019 дата публикации

ПОЛКА ЛОНЖЕРОНА И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

Номер: RU2699861C1

Изобретение относится к полке лонжерона для роторной лопасти ветроэнергетической установки и способу изготовления полки лонжерона. Полка (200) лонжерона для роторной лопасти (108) ветроэнергетической установки (100) имеет продольную протяженность (L) от первого конца (210) до второго конца (220), поперечную протяженность (Q), проходящую под прямым углом к продольной протяженности L, и толщину D, проходящую под прямым углом к продольной протяженности (L) и к поперечной протяженности (Q), по меньшей мере два пласта первого композитного материала (300), и по меньшей мере один пласт второго композитного материала (400). Первый композитный материал содержит матричный материал и/или волокна, отличные от второго композитного материала. Второй композитный материал на участке, примыкающем к второму концу (220), в направлении толщины расположен между указанными по меньшей мере двумя пластами первого композитного материала. По меньшей мере один пласт второго композитного материала (400) заканчивается ...

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11-07-2019 дата публикации

Verfahren zum Erfassen von Blitzeinschlägen in einem Windenergieanlagen-Rotorblatt und Blitzeinschlagmesssystem

Номер: DE102018100492A1
Принадлежит:

Es wird ein Verfahren zum Erfassen von Blitzeinschlägen in einem Windenergieanlagen-Rotorblatt (108) vorgesehen. Das Windenergieanlagen-Rotorblatt (108) weist ein Blitzschutzsystem (150) auf. Eine digitale Kamera oder ein optisch digitaler Wärmesensor (210) wird im Bereich einer Rotorblattwurzel, in einer Nabe der Windenergieanlage oder in oder an einem Turm der Windenergieanlage derart vorgesehen, dass die digitale Kamera (210) zumindest teilweise einen Teil des Blitzschutzsystems (150) optisch erfasst. Der Teil des Blitzschutzsystems wird durch die Kamera (210) optisch erfasst, um eine optische Temperaturerfassung durchzuführen. Eine Temperaturerhöhung des Teils des Blitzschutzsystems wird basierend auf der optischen Erfassung der Kamera erfasst.

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04-12-2003 дата публикации

DETEKTOR FÜR HOHE ELEKTRISCHE STRÖME

Номер: DE0069908664T2

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28-05-2020 дата публикации

Rotorblatt mit einem elektrischen Potentialausgleichselement und ein Verfahren zu dessen Herstellung

Номер: DE102018009179A1
Принадлежит:

Die Erfindung betrifft Rotorblatt einer Windkraftanlage mit einem Kohlenstofffasern (4) aufweisenden Gurt (1, 2), der rotorblattaußenseitig von einer elektrisch leitenden Schutzlage (13, 14) überdeckt ist, und einer Blitzableitung (16), die mit der elektrisch leitenden Schutzlage (13, 14) verbunden ist, wobei ein Potentialausgleichselement (9) mit einer Vielzahl an elektrisch leitenden Stiften (12), die von einem elektrisch leitenden Grundkörper (11) abgehen und die in den Gurt (1, 2) eingedrückt sind und wobei zumindest einige der Kohlenstofffasern (4) mit den Stiften (12) in elektrisch leitendem Kontakt stehen und das Potentialausgleichselement (9) mit der elektrisch leitenden Schutzlage (13, 14) elektrisch leitend verbunden ist.

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17-10-2019 дата публикации

Überprüfung von Blitzableitern für Windenergieanlagen

Номер: DE102018109049A1
Принадлежит:

Offenbart wird u.a. ein Verfahren das folgendes umfasst: Ermitteln einer Impulsantwortinformation indikativ für eine Impulsantwort, wobei die Impulsantwortinformation basierend auf einem in den Blitzableiter eingeleiteten Impuls, der durch eine elektromagnetische Welle charakterisiert ist, bestimmt wird, wobei die Impulsantwortinformation zumindest eine Wellenform und eine Laufzeit, die nach dem Einleiten des Impulses auf Basis von dessen Reflexion ermittelt wird, repräsentiert; Bestimmen einer Auswertungsinformation basierend auf der ermittelten Impulsantwortinformation, wobei die Impulsantwortinformation zumindest hinsichtlich der repräsentierten Wellenform und der Laufzeit der eingeleiteten und reflektierten elektromagnetischen Welle analysiert wird, wobei die Auswertungsinformation indikativ dafür ist, ob der Blitzableiter funktionsfähig ist oder nicht; und Ausgeben oder Veranlassen der Ausgabe der bestimmten Auswertungsinformation. Offenbart werden ferner eine Vorrichtung zur Ausführung ...

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05-09-2018 дата публикации

Wind turbine blade winglet

Номер: GB0002555965B

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21-02-2018 дата публикации

Aerodynamic component for a wind turbine

Номер: GB0002553069A
Принадлежит:

An aerodynamic component for a wind turbine 45, 47(i), 47(ii), the component comprising first and second elongate shaped elements that, when coupled together, form an aerofoil 111 having a leading edge, said component further comprising a sacrificial elongate member 113 configured to be secured to the aerofoil so as to cover a joint between the first and second elongate shaped members at said leading edge. The sacrificial member may be removed and replaced. The aerodynamic component may be a blade or spreader for a wind turbine. The sacrificial member may be electrically conductive, and it may be made of aluminium or stainless steel. The sacrificial member may vary the aerodynamic profile. Another aspect of the invention relates to a vertical axis wind turbine comprising such aerodynamic components. The wind turbine may have multiple blades and spreaders, with the sacrificial members of the blades connected to the sacrificial members of the spreaders, which are connected to the tower in ...

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27-03-1996 дата публикации

Lightning arrester for windmill blades

Номер: AU0003380295A
Принадлежит:

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06-04-2017 дата публикации

Rotor blade tip

Номер: AU2013347012C1

The invention relates to a rotor blade (30) of a wind turbine (100), comprising a main blade part and a blade tip (260), the blade tip (260) being detachably fastened to the main part by means of a connecting device (202). The connecting device (202) comprises a tip section (206) fastened to the blade tip (260) and a base section (204) for receiving the tip section (206), said base section being fastened to the main blade part. The tip section (206) comprises at least one securing means (242) for securing the tip section (206) to the base section (204), said securing means extending at least to the base section (204). The securing means (242) can be actuated through an opening (286) in the surface (282) of the blade tip (260) to secure the tip section.

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12-01-2021 дата публикации

POLYURETHANE MATERIAL, PROCESS FOR PREPARING SUCH MATERIAL AND PROTECTIVE COVER FOR WIND TURBINE BLADE

Номер: CA2966685C
Принадлежит: POLYTECH AS, POLYTECH A/S

The polyurethane material is prepared from a polyol, butanediol, and an isocyanate. The protective cover (1) is adapted to be attached along at least a part of a longitudi- nal edge (3) of the wind turbine blade by adhesion of an inside (4) of the protective cover to a surface (5) of the longitudinal edge of the wind turbine blade. The protective cover is elongated in a longitudinal direction (D) and has an at least substantially U- formed cross-section. The protective cover includes a central cover section extending in the longitudinal direction and two peripheral cover sections extending in the longitu- dinal direction at either side of the central cover section, respectively. The central cov- er section has a minimum thickness of at least 1 millimetre, and each peripheral cover section has a thickness decreasing from a maximum thickness of at least 1 millimetre to a minimum thickness of less than 1/2 millimetre.

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16-03-2021 дата публикации

WIND TURBINE ROTOR BLADE HAVING AN ELECTRICAL HEATING DEVICE AND A PLURALITY OF LIGHTNING CONDUCTORS

Номер: CA2852598C
Принадлежит: NORDEX ENERGY GMBH

Wind turbine rotor blade having a rotor blade root, a rotor blade tip, an electrical heating device, a lightning receptor in the region of the rotor blade tip and a plurality of lightning conductors leading from the lightning receptor to the rotor blade root, characterized in that .cndot. precisely two of the lightning conductors are provided, .cndot. at least one further lightning receptor is provided, which is arranged at a distance from the rotor blade tip and is connected to one of the lightning conductors, and .cndot. each of the two lightning conductors is electrically conductively connected to the electrical heating device at a multiplicity of points between the rotor blade root and the rotor blade tip, with the result that, in the event of a lightning strike, equipotential bonding between the two lightning conductors takes place via the electrical heating device.

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25-05-2018 дата публикации

Wind power generation device

Номер: CN0108071558A
Автор:
Принадлежит:

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09-12-2009 дата публикации

Toothed disc type wind power generation lightning arrester

Номер: CN0101598114A
Автор: TANLI LIN, LIN TANLI
Принадлежит:

The invention relates to a toothed disc type wind power generation lightning arrester. The lightning arrester is characterized in that the lightning arrester comprises an external toothed disc and an internal toothed disc positioned in the center of the external toothed disc; the external toothed disc and the internal toothed disc are oppositely provided with sharp teeth which can achieve a point discharge effect toward the side of the moving gap; the center of the internal toothed disc is provided with a hole through which a main shaft of a fan passes; one toothed disc is fixed on a wheel boss of the fan and synchronously rotates along with the wheel boss, and the toothed disc fixed on the wheel boss is electrically connected with a lightning receiving needle fixed on a fan blade; and the other toothed disc is fixed at the front end of a cabin shell and directly connected with a ground wire. By the matching of the sharp teeth of the moving gap of the internal toothed disc and the external ...

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06-07-2016 дата публикации

Method suitable for wind generation set to reduce lightning disasters

Номер: CN0105736257A
Автор: WANG PENG
Принадлежит:

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22-01-2019 дата публикации

Installing method of lightning protection system for permanent magnet direct drive wind turbine generator system

Номер: CN0109253057A
Принадлежит:

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24-05-2019 дата публикации

Unmanned aerial vehicle lightning stroke test system and method

Номер: CN0109798227A
Принадлежит:

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14-04-2020 дата публикации

Method for preventing lightning strike of power distribution cabinet

Номер: CN0111009885A
Автор:
Принадлежит:

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16-07-2019 дата публикации

Lightning monitoring device, wind turbine generator and wind turbine generator monitoring system

Номер: CN0209115270U
Автор: MA XIAOXIAO, JIN XIN
Принадлежит:

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15-11-2019 дата публикации

Lightning protection system for wind power generation device

Номер: CN0106762467B
Автор:
Принадлежит:

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02-09-2016 дата публикации

SYSTEM MONITORING LIGHTNING PROTECTION

Номер: FR0003033217A1
Принадлежит: AIRBUS DEFENCE AND SPACE SAS

Dispositif de contrôle d'un système de protection contre la foudre comportant un chemin de descente (133, 136), caractérisé en ce qu'il comporte - des moyens (20) d'émission d'un signal radiofréquence à une extrémité (135) du chemin de descente, - des moyens (20) de mesure d'un coefficient de réflexion, - des moyens (20) de détermination de fréquences de résonance du chemin de descente, - des moyens (20) de comparaison des fréquences de résonance déterminées avec des fréquences de résonance préétablies.

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13-10-2020 дата публикации

lightning protection system for a wind turbine and wind turbine comprising such lightning protection system

Номер: BR102020004649A2
Принадлежит:

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04-01-2018 дата публикации

LIGHTNING PROTECTION SYSTEM AND METHOD FOR THE PRODUCTION THEREOF

Номер: WO2018001653A1
Принадлежит:

The invention relates to a lightning protection system for, e.g., a non-static industrial installation, such as a wind turbine, and to a method for producing a lightning protection system. By means of the invention, a highly effective composite material that is easy to apply and that can be applied in very thin layers like a paint is presented for the first time, which composite material can be used as an effective lightning protection system for non-static installations. The paint can be repaired and retrofitted as needed and therefore can be used flexibly as needed.

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30-04-2020 дата публикации

LIGHTNING PROTECTION OF A SECTIONED WIND TURBINE BLADE

Номер: WO2020084050A1
Принадлежит:

Disclosed is a spar beam and a wind turbine blade comprising a spar beam. The wind turbine blade comprising a first blade section extending along a longitudinal axis from a root to a first end and a second blade section extending along the longitudinal axis from a second end to a tip. The spar beam comprises a conductive beam sheath circumscribing at least a beam sheath angular distance of the spar beam about the spar beam axis and longitudinally extending from a fourth beam axis position to a fifth beam axis position.

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28-10-2021 дата публикации

TIP AIR RECEPTOR

Номер: WO2021214150A1
Принадлежит:

Disclosed is a tip section for a wind turbine blade. The tip section comprises an intermediary blade section comprising a first shell part forming a first side of the intermediary blade section and a second shell part forming a second side of the intermediary blade section, the intermediary blade section having a leading edge and a trailing edge and extending from an intermediary blade section first end to an intermediary blade section second end; a tip part forming an end of the tip section and having been rigidly attached to the intermediary blade section first end, the tip part having an outer surface comprising a metal area; and a number of one or more superficial metal strips extending along an outer surface of the intermediary blade section. A wind turbine blade with such a tip section and the manufacturing of such a wind turbine blade is also disclosed.

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02-04-2020 дата публикации

DOWN CONDUCTOR CONNECTION SYSTEM, WIND TURBINE LIGHTNING PROTECTION SYSTEM, AND METHOD FOR ARRANGING A DOWN CONDUCTOR CONNECTION SYSTEM

Номер: WO2020065368A1
Принадлежит:

The present invention relates to conductor connection system for a wind turbine lightning protection system adapted to protect a wind turbine blade from lightning strikes. The lightning protection system comprises a down conductor cable adapted to extend in a longitudinal direction of the wind turbine blade and arranged for connection to the root end of the wind turbine blade, and comprises a number of lightning receptors electrically connected to and distributed along the length of the down conductor cable. The down conductor connection system comprises a modular down conductor cable having a first and second down conductor cable part, and at least one down conductor connector arranged between and connected to the ends of the down conductor cable parts. The down conductor connector comprises first and second terminals, connected to an end of each down conductor part, respectively, where the first and second terminals are adapted for mutual connection.

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04-04-2017 дата публикации

Unmanned aerial device and method for performing a lightning protection measurement at a wind turbine

Номер: US0009612264B2
Принадлежит: Availon GmbH, AVAILON GMBH

The invention relates to an unmanned aerial device for performing a resistance, current and/or voltage measurement at an object, in particular a lightning protection measurement at a wind turbine, comprising a contact element with an electrically conductive contact area, which can be brought into contact with a surface of the object, in particular with a lightning protection receptor of a rotor blade, of a nacelle or of a tower of a wind turbine, and comprising an electrically conductive measurement cable, which, with a first end, is connected in an electrically conductive manner to the contact area, and, with a second end, can be connected to a resistance, current and/or voltage measuring device and/or a grounding contact of the object.

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17-09-2020 дата публикации

METHOD FOR PROVIDING A WIND TURBINE BLADE WITH LIGHTNING PROTECTION AND A WIND TURBINE BLADE

Номер: US20200291926A1
Принадлежит:

A method for providing a wind turbine blade with lightning protection, the method including the steps of: providing a lightning protection cover including a non-conductive medium and a conductive medium embedded in the non-conductive medium, providing a blade body, and attaching the lightning protection cover to the blade body. An effective lightning protection is thus provided.

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10-11-2020 дата публикации

Spar configuration for jointed wind turbine rotor blades

Номер: US0010830207B2
Принадлежит: General Electric Company, GEN ELECTRIC

A jointed wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. A beam structure extends span-wise from the first blade segment into a receiving section formed in the second blade segment. The receiving section includes opposite spar caps and opposite interconnecting webs. The spar caps have a constant thickness along the receiving section where the spar caps overlap with the beam structure and are formed of a material or combination of materials along the receiving section to produce a desired stiffness of the spar caps along the receiving section. The webs have a reduced amount of conductive material adjacent to a chord-wise joint between the blade segments.

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31-10-2018 дата публикации

EVALUATION METHOD AND SYSTEM FOR A LIGHTNING PROTECTION SYSTEM OF A WIND TURBINE COMPRISING A PLURALITY OF BLADES MADE OF CARBON FIBER REINFORCED PLASTIC OR POLYMER

Номер: EP3396157A1
Принадлежит:

Evaluation method for a lightning protection system of a wind turbine with blades (P), the lightning protection system comprising a down conductor connected to earth and to each blade (P) by means of conductor plates (1, 2) embedded in the corresponding blade (P). The method is configured for determining the quality of the connections between the conductor plates (1, 2) and the blade (P) thereof and comprises injecting direct current (I) between two conductor plates (1, 2) of one and the same blade (P), a flow of current being generated through the segment of the blade (P) comprised between both conductor plates (1, 2), measuring the voltage (V) at measurement points (Pm) of said segment, comparing the voltages (V) to one another, and determining the quality of the connections between said conductor plates (1, 2) and said blade (P) depending on the result of said comparison. Associated evaluation system.

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28-03-2018 дата публикации

BLADE FOR WIND POWER GENERATION DEVICE

Номер: EP3299618A1
Автор: MATSUMOTO, Toshio
Принадлежит:

The present invention addresses the problem of providing a structure with which lightning strikes to a blade can be suppressed. Provided is a blade 5 used in a wind power generation device 1, the blade 5 being characterized in that a structural member formed from an electroconductive material is inserted into the interior, a first electrode 7 formed from an electroconductive material is provided on the surface of the blade 5, and the structural member constitutes a second electrode 8 that is electrically insulated from the first electrode 7 and is grounded.

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09-10-2019 дата публикации

CARBON BLADE FOR WIND POWER GENERATOR WITH MULTI-DOWN CONDUCTOR

Номер: EP3548742A1
Принадлежит:

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20-04-2022 дата публикации

WIND TURBINE ROTOR BLADE

Номер: EP3737860B1
Принадлежит: Wobben Properties GmbH

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07-12-2022 дата публикации

HOUSING FOR A NACELLE OF A WIND TURBINE

Номер: EP3399185B1
Автор: Lieckfeldt, Nils

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02-04-2020 дата публикации

СВЕТОВОЙ ЭЛЕМЕНТ И СПОСОБ ОСВЕЩЕНИЯ КОНСТРУКТИВНОГО ЭЛЕМЕНТА ВЕТРОЭНЕРГЕТИЧЕСКОЙ УСТАНОВКИ, А ТАКЖЕ КОНСТРУКТИВНЫЕ ЭЛЕМЕНТЫ ДЛЯ ВЕТРОЭНЕРГЕТИЧЕСКОЙ УСТАНОВКИ И ВЕТРОЭНЕРГЕТИЧЕСКАЯ УСТАНОВКА

Номер: RU2718380C1

Изобретение относится к применению монтажного отверстия лопасти ротора для ветроэнергетической установки, световому элементу для освещения лопасти ротора ветроэнергетической установки, лопасти ротора для ветроэнергетической установки, ветроэнергетической установке, способу освещения лопасти ротора ветроэнергетической установки. Предлагается применение монтажного отверстия лопасти ротора, которое при монтаже лопасти ротора на ветроэнергетической установке служит для размещения подъемного механизма, в качестве отверстия для размещения светового элемента для освещения лопасти ротора, в частности во время эксплуатации ветроэнергетической установки, при этом световой элемент включает в себя световой участок и присоединительный участок, причем присоединительный участок расположен и выполнен с возможностью присоединения внутри лопасти ротора, и световой участок расположен и выполнен с возможностью выступания из отверстия лопасти ротора, и световой участок расположен и выполнен с возможностью освещения ...

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11-10-2018 дата публикации

Blitzschutzeinrichtung für ein Rotorblatt einer Windenergieanlage

Номер: DE102017107859A1
Принадлежит:

Blitzschutzeinrichtung für ein Rotorblatt einer Windenergieanlage, umfassend- eine Rezeptorspitze mit einer Anlagefläche,- eine Rezeptorbasis mit einem Verankerungsabschnitt und einem Verbindungsabschnitt, wobei der Verankerungsabschnitt zur dauerhaften Verankerung der Rezeptorbasis in oder an einer Blattschale (B) des Rotorblatts ausgebildet ist und der Verbindungsabschnitt eine der Rezeptorspitze zugewandte Befestigungsfläche aufweist, welche in einem Abstand von dem Verankerungsabschnitt angeordnet ist, wobei eine von einer Befestigungseinrichtung ausgehende Kraft die Anlagefläche an die Befestigungsfläche presst.

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02-06-2016 дата публикации

Lightning protection device, direct-drive wind turbine generator system and lightning protection method thereof

Номер: AU2014352342A1
Принадлежит:

A lightning protection device comprises a lightning receptor arranged on a nonmetal blade (1) for receiving the lightning current and a blade downlead (2) electrically connected to the lightning receptor; a first lightning current guide component (3) electrically connected with the blade downlead (2) and connected with the outer surface of a generator rotor (5) in an insulation manner; a second lightning current guide component (7) connected with the outer surface of the generator rotor and an insulated cabin cover (6) in an insulation manner, and electrically connected with the first lightning current guide component (3) by a metal conductor (9); a lightning protection downlead (11) for electrically connecting the second lightning current guide component (7) with a grounding component (15) arranged in a tower, so as to discharge the lightning current into the ground through the tower. A direct-drive wind turbine generator system and a lightning protection method thereof are also disclosed ...

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26-08-2019 дата публикации

STATIC DISCHARGER FOR WIND TURBINE

Номер: CA0002996390A1
Принадлежит: NA

The invention is the construction of an electrostatic discharging brush and a lightning registration system, its mounting assembly, and the installation method, on certain wind turbines (Gamesa G8x/9x). The invention allows continuous drainage of turbine blade static electricity to the electrical ground of the nacelle by offering two mechanical degrees of freedom, one between the device and the blade and one between the device and the nacelle combined with the ability to use a Lightning Registration Card to record lightning strikes on the blade. The invention is characterised by its ease of installation, requiring no modification to the turbine, while also creating a path for static electricity and lightning current to drain from the blade to the ground of the nacelle avoiding the leakage of such electrical charge to the drivetrain of the turbine including the Main Bearings as well as the ability to record lightning strikes on the turbine. The invention is comprised of a double conduction ...

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03-07-2018 дата публикации

WIND TURBINE AND A LIGHTNING PROTECTION UNIT FOR A WIND TURBINE

Номер: CA0002909338C
Принадлежит: WOBBEN PROPERTIES GMBH

A wind turbine is provided, having a nacelle (104), and having a rotor that has at least two rotor blades (108). The rotor blades (108) each have a rotor blade root (108a), at least one metallic conductor (220), for conducting a lightning strike, and connected thereto, provided in the region of a rotor blade root, have a conducting ring (230). In addition, a lightning protection unit (240) is fastened to the non-rotating part of the nacelle (104) in such a manner that the lightning protection unit (240) lies on the ring (230). The lightning protection (240) unit has two rollers (241) and a lightning rod (242), a free end of the lightning rod (242) being separated from an outer end of the rollers (241) by a distance that defines a spark gap.

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12-07-2016 дата публикации

LIGHTNING PROTECTION SYSTEM FOR A WIND TURBINE

Номер: CA0002678862C
Автор: OLSEN, KAJ, OLSEN KAJ
Принадлежит: SIEMENS AKTIENGESELLSCHAFT, SIEMENS AG

It is described a lightning protection system (100) for protecting a device for exterior use, in particular a wind turbine, from damages based on a lightning stroke. The lightning protection system (100) comprises a choke element (101). The choke element (101) is adapted for being mounted around a shaft (103) of the device in such a manner that a current flow through the shaft (103) causes a magnetic flux in the choke element (101).

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22-05-2018 дата публикации

LIGHTNING PROTECTION STRUCTURE OF BLADE FOR WIND POWER GENERATION

Номер: CA0002803751C

On a blade for wind power generation that has a lightning receptor, an object is to prevent lightning from striking a boundary between the blade and the lightning receptor as much as possible. The blade 3 for wind power generation includes a lightning receptor 31 configured to form a part of the surface of the blade 3, and a lightning receiving protrusion 4 that protrudes outward from the surface of the lightning receptor. The lightning receiving protrusion 4 is provided to a surface boundary 32 between the blade 30 and the lightning receptor 31. The surface boundary 32a configured to protect against the lightning is positioned within a radius of a circle 5, which is centered on a tip of the lightning receiving protrusion 4 and which has a radius or twice the length of the lightning receiving protrusion 4. A point where electric field concentration on the surface of the lightning receptor is a greatest is moved from the boundary to the tip of the lightning receiving protrusion, so as to ...

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12-12-2017 дата публикации

Can fuse honourable complementary power generation system of big empty axle of building

Номер: CN0206738066U
Автор: ZHANG QING
Принадлежит:

Подробнее
11-10-2019 дата публикации

For blower on the tip of the lightning protection device

Номер: CN0209483544U
Автор:
Принадлежит:

Подробнее
03-05-2019 дата публикации

An equipment for power generation lightning protection device

Номер: CN0107642463B
Автор:
Принадлежит:

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17-03-2020 дата публикации

Method, for forming lengthened blade and blade tip and lengthened blade

Номер: CN0109162863B
Автор:
Принадлежит:

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28-08-2018 дата публикации

Autonomous-rotation thunder and lightning preventing device

Номер: CN0108457814A
Автор: GAO PANLIANG, LIU SHIYU
Принадлежит:

Подробнее
26-06-2020 дата публикации

Improvements relating to structural components of wind turbine blades

Номер: CN0111344486A
Автор:
Принадлежит:

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22-02-2019 дата публикации

Highly-efficient wind generator

Номер: CN0109372709A
Автор: MENG YAN
Принадлежит:

Подробнее
05-05-2017 дата публикации

MONITORING LIGHTNING PROTECTION SYSTEM

Номер: FR0003033217B1
Принадлежит: AIRBUS SAFRAN LAUNCHERS SAS

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26-08-2021 дата публикации

LIGHTNING PROTECTION SYSTEM FOR MAIN LAMINATE OF ROTOR BLADE OF WIND TURBINE

Номер: WO2021165404A1
Принадлежит:

Disclosed a wind turbine blade comprising a main laminate and a method for manufacturing a main laminate for a wind turbine blade. The wind turbine blade extends in a longitudinal direction from a root to a tip and comprising a pressure side, a suction side and a chord line extending between a leading edge and a trailing edge. Particularly, lightning protection of such main laminate is disclosed.

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07-06-2018 дата публикации

CARBON BLADE FOR WIND POWER GENERATOR WITH MULTI-DOWN CONDUCTOR

Номер: WO2018101632A1
Принадлежит:

The disclosure relates to a carbon blade for a wind turbine with multiple down conductors, and more particularly, to a carbon blade for a wind turbine with multiple down conductors that includes multiple down conductors disposed thereon to reduce or prevent a potential difference between a plurality of points to be formed thereon from being generated.

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14-05-2020 дата публикации

SPAR STRUCTURE WITH INTEGRATED DOWN CONDUCTOR ELEMENT FOR LIGHTNING PROTECTION SYSTEM

Номер: WO2020094633A1
Принадлежит:

A sparcap for a spar structure inside a wind turbine blade is provided. A down conductor element is integrated on a side of the sparcap such that after assembly of the sparcap into the spar structure, the down conductor element extends along an outer corner of the spar structure.

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31-03-2022 дата публикации

WIND TURBINE MONITORING DEVICE, WIND TURBINE SYSTEM, AND WIND TURBINE MONITORING METHOD

Номер: WO2022063370A1
Автор: FUJIOKA, Hisayasu
Принадлежит:

A wind turbine monitoring device for monitoring a wind turbine including a lightning sensor for detecting a lightning strike on a wind turbine blade includes a lightning parameter acquisition part configured to acquire at least one lightning parameter based on an output of the lightning sensor, a lightning level determination part configured to determine a level of the lightning strike based on the at least one lightning parameter acquired by the lightning parameter acquisition part; and an inspection control part configured to judge whether it is necessary to automatically inspect the wind turbine blade by at least one inspection unit for inspecting the wind turbine blade, according the level of the lightning strike determined by the lightning level determination part.

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27-08-2020 дата публикации

ROTOR BLADE FOR A WIND TURBINE INCORPORATING A LIGHTNING PROTECTION SYSTEM

Номер: US20200271105A1
Принадлежит:

A rotor blade for a wind turbine comprising: an internal blade cavity defined by two opposing internal surfaces of two shells of the rotor blade; a receptor block forming part of a lightning protection system and disposed within the internal blade cavity; and a centralising device that spaces the receptor block from the two opposing internal surfaces of the shells such that the receptor block lies centrally within the internal blade cavity. The receptor block is therefore in a desired position for installing receptors for lightning discharge.

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19-01-2023 дата публикации

WIND TURBINE BLADE MANUFACTURE

Номер: US20230016975A1
Принадлежит:

A method of preparing a wind turbine blade, comprising: removing at least a portion of a layer of material covering a region of a metallic part of the wind turbine blade from the wind turbine blade, applying a metal salt to the metallic part, the metal salt being arranged to oxidise a metal of the metallic part, such that the metal salt and the metal of the metallic part react and a new compound is formed on the metallic part.

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16-11-2023 дата публикации

WIND TURBINE MONITORING DEVICE, WIND TURBINE SYSTEM, AND WIND TURBINE MONITORING METHOD

Номер: US20230366383A1
Автор: Hideyasu FUJIOKA
Принадлежит:

A wind turbine monitoring device for monitoring a wind turbine including a lightning sensor for detecting a lightning strike on a wind turbine blade includes a lightning parameter acquisition part configured to acquire at least one lightning parameter based on an output of the lightning sensor, a lightning level determination part configured to determine a level of the lightning strike based on the at least one lightning parameter acquired by the lightning parameter acquisition part; and an inspection control part configured to judge whether it is necessary to automatically inspect the wind turbine blade by at least one inspection unit for inspecting the wind turbine blade, according the level of the lightning strike determined by the lightning level determination part.

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30-11-2023 дата публикации

DAMAGE ASSESSMENT ARRANGEMENT

Номер: US20230383731A1
Принадлежит:

A damage assessment arrangement for assessing the extent of damage to a lightning receptor electrically connected to a down conductor of a wind turbine rotor blade includes a measurement pulse module including a pulse generator arranged to transmit a pulse into one end of the down conductor and a return signal detector arranged to detect the return signal; a return signal analysis module configured to determine the extent of alteration of the return signal relative to an expected return signal; and a damage estimation module configured to relate the relative extent of alteration to a measure of damage to rotor blade LPS. The following further describes a wind turbine with such a damage assessment arrangement; and a method of assessing the extent of damage to a rotor blade LPS.

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15-01-2020 дата публикации

A WIND TURBINE BLADE AND A WIND TURBINE

Номер: EP3594494A1
Принадлежит:

A wind turbine blade (5) for a wind turbine (1), the wind turbine blade (5) comprising an electrical conductor (22) extending in a longitudinal direction (L) of the wind turbine blade (5), and a carbon fiber material (25, 39, 40) being electrically conductive and having a first portion (27) which is arranged beside the electrical conductor (22), a second portion (28) which is connected to the first portion (27) and is attached and electrically connected to the electrical conductor (22), and a third portion (29) which is connected to the second portion (28) and at least partially overlaps with the first portion (27). Due to such an electrical connection between the electrical conductor (22) and the carbon fiber material (25, 39, 40) arcing and, thus, delamination of carbon can be avoided when conducting current of a lightning strike.

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12-01-2012 дата публикации

Wind turbine blade with variable trailing edge

Номер: US20120009064A1
Автор: Peter Baek, Peter Grabau
Принадлежит: Lm Glasfiber As

The present invention relates to a wind turbine blade for a rotor of a wind turbine having a substantially horizontal rotor shaft. The blade may comprise a profiled contour comprising a pressure side and a suction side as well as a leading edge and a trailing edge, a chord extending between the leading edge and the trailing edge, and the profiled contour generating a lift when being impacted by an incident airflow. In a cross section of the wind turbine blade perpendicular to a lengthwise direction of the wind turbine blade, a suction side point is defined on the suction side at the trailing edge of the blade, and a pressure side point is defined on the pressure side at the trailing edge of the blade. The suction side point is movable in relation to the pressure side point, and the blade is further provided with a displacement device configured to displace the pressure side point and the suction side point so that a distance between the suction side point and the pressure side point can be varied. The present invention further relates to a wind turbine including such a wind turbine blade and to a method of operating a wind turbine including such a wind turbine blade.

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02-02-2012 дата публикации

Wind turbine blade shear web with spring flanges

Номер: US20120027610A1
Автор: Aaron Yarbrough
Принадлежит: General Electric Co

A wind turbine blade has upper and lower shell members with a respective spar cap configured on an internal face of the shell members. A shear web extends between the spar caps along a longitudinal length of the blade. A connection assembly is configured between the transverse ends of the shear web and the spar caps. The connection assembly includes spring flange members that extend distally beyond the transverse ends of the shear web at opposite sides of the shear web so as to define a laterally extending float section. A bond paste layer is between the float sections and the spar cap and between the transverse end of the shear web and the spar cap as a result of compression of the spring flanges against the spar cap.

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08-03-2012 дата публикации

Blade module, a modular rotor blade and a method for assembling a modular rotor blade

Номер: US20120055020A1
Принадлежит: Individual

A method for assembling a modular wind turbine rotor blade, includes aligning a first blade module and a second blade module such that a first receptacle of the first blade module and a second receptacle of the second blade module are co-axial; and forming a detachable mechanical connection between a first inlay of the first blade module and a second inlay of the second blade module using a threaded fastener that extends into the first receptacle and into the second receptacle.

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15-03-2012 дата публикации

Method of strengthening a wind turbine blade and the strengthened blade

Номер: US20120061007A1
Принадлежит: Lm Glasfiber As

A method of repairing a wind turbine blade is described. The blade comprises a shell body comprising a fibre-reinforced polymer material. The blade is strengthened by use of a UV curable prepreg material having a first side and a second side. The method comprises the steps of: a) applying the UV curable, fibre-reinforced prepreg material to an area of application on an outer surface or an inner surface of the wind turbine blade with the first side of the prepreg material facing the area of application, and b) exposing the prepreg material to UV radiation for a predetermined amount of time so as to allow the prepreg to cure.

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15-03-2012 дата публикации

Load mitigation device for wind turbine blades

Номер: US20120063896A1
Принадлежит: SIEMENS AG

The present invention includes a rotor blade ( 20 ) having a blade body ( 30 ) with a leading edge ( 26 ) and a trailing edge ( 28 ) and opposed first and second surfaces ( 34, 36 ) extending there between defining an airfoil shape ( 32 ) in cross-section. A passageway ( 42 ) extends through the blade body ( 30 ) between the first and second surfaces ( 34, 36 ). A flexible member ( 60 ) is sealed over one end ( 50 ) of the passageway ( 42 ). Advantageously, the flexible member ( 60 ) is passively responsive to changes in a differential pressure between the first and second surfaces ( 34, 36 ) to move between a deactivated position ( 62 ) and an activated position ( 64 ) where the flexible member ( 60 ) extends away from the airfoil shape ( 32 ) to function as a load mitigation device ( 40 ) for the wind turbine rotor blade ( 20 ).

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31-05-2012 дата публикации

Lightning conduction system for wind turbine blades with carbon fiber laminates

Номер: US20120134826A1
Принадлежит: Gamesa Innovation and Technology SL

Lightning rod system for wind turbine blades formed by various connections set up on carbon fiber laminates ( 2 ) on the blade ( 1 ), equipotentializing the surface of the flanges ( 4 ) of the beam ( 10 ) through the deviations of a primary cable ( 6 ) with the respective auxiliary cables ( 5 ), carried out with the use of a device ( 12 ) whose terminals are connected between the ends of the cited auxiliary cable ( 5 ). The use, given the elevated inductance of device ( 12 ) mounted on the connection between the carbon laminates ( 2 ) and the conductor cable or primary cable ( 6 ), is to reduce the passage of current across the carbon laminate and favor the conduction through the metal cable.

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07-06-2012 дата публикации

Wind turbine rotor blade with passively modified trailing edge component

Номер: US20120141272A1
Автор: Megan M. Wilson
Принадлежит: General Electric Co

A wind turbine rotor blade includes a root portion and an airfoil portion extending from the root portion and defined by a leading edge and a trailing edge. The airfoil portion further includes a main foil section and a trailing edge section that is pivotally connected to the main foil section along a span-wise extending hinge line. A passive torsion element is coupled between the main foil section and the trailing edge section. The torsion element is biased to a neutral position wherein the trailing edge section is pivoted chord-wise to a low wind speed position relative to the main foil section. The trailing edge section is self-actuating from the low wind speed position to an increased wind speed position relative to the main foil section against as a function of the biasing force of the torsion element and wind speed over the airfoil section.

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07-06-2012 дата публикации

Device for assembling sections of wind-turbine blades and method for linking sections of wind-turbine blades

Номер: US20120141284A1
Принадлежит: Astrium SAS

A device for assembling sections of wind-turbine blades provided with casings, including at least one tie including a first portion and a second portion, the first portion being a portion for assembly with a casing of a first section and the second portion being a portion for mounting with a complementary tie supported by a casing of a second section, wherein the first portion includes at least one composite/metal shear link provided with a continuous fitting element on at least one surface of the casing which receives one end of the aformentioned surface of the casing, provided with attachment pins passing through the fitting and the end of the surface. According to a preferred embodiment, the composite/metal link has at least double shear and is additionally provided with a back-fitting element, the end of the aforementioned surface of the casing being received between the fitting and the back fitting, the attachment pins passing through the fitting, the end of the surface and the back fitting, the link also being provided with a means for attaching the back fitting to the fitting.

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12-07-2012 дата публикации

Partitioned shell mold for wind turbine blades, its manufacturing method, and blade production method employing this mold

Номер: US20120175807A1
Принадлежит: Gamesa Innovation and Technology SL

The invention describes a mold for non-metallic wind turbine blade shells that comprises two semi-molds, upper and lower, hinged with a pivoting system and equipped with stiffening ribs that hold a system of air conduits on it, and which is partitioned transversely in at least two parts ( 1 A, 2 A) and ( 1 B, 2 B) that are joined together with some fastening ribs ( 13 A, 13 A′, 13 B, 13 B′). The invention likewise describes the manufacturing method for this mold and the method to obtain a wind turbine blade by replacing an already constituted part of the mold to obtain a geometry differentiated from the original in one of its parts, and to manufacture another family of wind turbine blades.

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30-08-2012 дата публикации

Wind turbine blade, wind turbine generator with the same, and design method of wind turbine blade

Номер: US20120217754A1
Автор: Koji Fukami
Принадлежит: Mitsubishi Heavy Industries Ltd

Provided is a wind turbine blade realizing enhancement of performance by a winglet provided at a blade tip. The wind turbine blade includes the winglet formed by bending a tip side thereof toward a pressure side of the blade relative to an adjacent portion adjacent on a blade root side, and a CANT angle defined by a blade axial line of the winglet relative to a radial extrapolation line of a blade axial line of the adjacent portion is set to be 15° or more and 55° or less. The winglet includes a tip end located on a tip side thereof, having a substantially linear blade axial line, and a bent portion located on a base end side of the winglet and bent relative to the adjacent portion. This bent portion is bent gradually so as to satisfy the predetermined CANT angle.

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30-08-2012 дата публикации

Method for manufacture of an infused spar cap using a low viscosity matrix material

Номер: US20120219424A1
Принадлежит: General Electric Co

Embodiments of the present application generally provide for wind turbine blade spar caps comprising composite materials prepared using a low viscosity resin system and a high density fabric and methods for their manufacture. In particular embodiment, the low viscosity resin system has a viscosity in the range of about 1 to about 100 centipoises at a temperature in the range of about 0° C. to about 125° C. during the preparation of the composite material. By using low viscosity resin systems, composite materials have been prepared having a fiber volume fraction of greater than about 65% and a composite modulus of greater than 48000 MPa.

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24-01-2013 дата публикации

Turbine blades and systems with forward blowing slots

Номер: US20130022463A1
Принадлежит: Caitin Inc

A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some cases at an angle between about 0° and 70° with respect to an axis oriented from a centerline of the blade toward the leading edge.

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07-02-2013 дата публикации

Wind turbine blade having an outer surface with improved properties

Номер: US20130034447A1
Принадлежит: SAAB AB

A wind turbine blade including an outer surface that serves as an aerodynamic surface when the blade is subjected for an air stream. A resin matrix made of a laminate of at least one ply includes the outer surface. The outer ply includes a nano structure embedded therein such that the filaments of the nano structure in the ply have essentially the same angular orientation relative a plane of the outer surface.

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21-02-2013 дата публикации

Wind turbine blade and method of protecting the same

Номер: US20130045105A1
Принадлежит: Individual

A turbine blade for a wind turbine includes a leading edge, a trailing edge and a recess located within the leading edge. The blade further includes a protective layer having an inner side and outer side, the inner side is sized and orientated to locate within the recess to facilitate withstanding impact forces applied by an object.

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28-03-2013 дата публикации

Rotor blade for a wind turbine

Номер: US20130078105A1
Принадлежит: THYSSENKRUPP STEEL EUROPE AG

The invention relates to a rotor blade for a wind turbine, comprising a root of the rotor blade and a rotor blade aerofoil. The object of providing a rotor blade which can be easily and inexpensively produced even when of great lengths and which, what is more, enables a system for protection against lightning to be incorporated in a simplified way is achieved, for a rotor blade of the generic kind, by having the rotor blade consist of at least partly a fibre-reinforced plastics composite having metal inserts embedded in the matrix of the fibre-reinforced plastics composite.

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25-04-2013 дата публикации

ROTOR BLADE FORM FOR PRODUCING A ROTOR BLADE OF A WIND POWER PLANT

Номер: US20130098527A1
Принадлежит: Wobben Properties GMBH

The present invention concerns a rotor blade mold for producing a rotor blade of a wind power installation or a part thereof comprising a heatable mold portion having a shaping surface for shaping the rotor blade surface and wherein the heatable mold portion has at least two heating portions and each heating portion includes at least one electrical resistance heating element arranged at or beneath the shaping surface and a supply unit for supplying the at least one resistance heating element with electrical heating current. 1. A rotor blade mold for producing a rotor blade member of a wind power installation comprising:a heatable mold portion having a shaping surface for shaping the rotor blade member surface;wherein the heatable mold portion has at least two heating portions and each heating portion includes at least one electrical resistance heating element arranged at or beneath the shaping surface and a supply unit configured to supply the at least one resistance heating element with electrical heating current; andwherein each supply unit includes a control unit configured to control the heating current.2. The rotor blade mold according to claim 1 , wherein each supply unit has a switch cabinet and accommodated in the switch cabinet is the respective control unit configured to control the heating current.3. The rotor blade mold according to claim 2 , wherein at least part of the control unit mounted to a removable outside wall portion of the switch cabinet claim 2 , and the control unit provides electrical connections to said outside wall portion in the form of releasable connections to simplify replacement of said outside wall portion including the elements mounted thereon by another outside wall portion.4. The rotor blade mold according to claim 1 , further comprising a central control coupled to each supply unit.5. The rotor blade mold according to claim 1 , wherein the at least one resistance heating element includes at least one of a flat heating element ...

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25-04-2013 дата публикации

Lightning current transfer assembly for a wind turbine

Номер: US20130100570A1
Принадлежит: Vestas Wind Systems AS

A lightning current transfer assembly ( 2 ) for a wind turbine ( 1 ) is arranged to transfer lightning current from a wind-turbine part ( 8 ) to another part ( 8 ) rotatable relative to it. The assembly comprises at least one electric contact arrangement ( 11′, 11 ″) comprising complementary contact members ( 12 a′, 12 b′, 12 a″, 12 b ″) which provide electric connection by mechanically contacting each other while being movable relative to each; a spark gap ( 4 ) connected in series with the movement-enabling contact arrangement ( 11′, 11 ″); and a spark-gap-bridging resistance ( 6 ) connected parallel to the spark gap ( 4 ). Thereby, the assembly provides at least two alternative current paths: (i) a lightning current path across the at least one electric contact arrangement and the spark gap, and (ii) a permanent-discharge current path across the at least one electric contact arrangement and through the spark-gap-bridging resistance.

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25-04-2013 дата публикации

BLADE AND LAMINATED PROTECTIVE SHEET FOR THE BLADE

Номер: US20130101426A1
Принадлежит: FUJIKURA RUBBER LTD

A scratch-resistant blade such as an FRP wind turbine blade and a blade protective sheet which can be easily repaired when scratched. A blade is provided with a laminated protective sheet bonded to at least part of a leading edge of an FRP blade body of said blade, wherein the laminated protective sheet comprises an adhesive layer, a intermediate fabric layer and a durable surface layer, in that order from the blade body. 1. A blade comprising a laminated protective sheet being bonded to at least part of a leading edge of an FRP blade body of said blade , wherein said laminated protective sheet comprises an adhesive layer , a intermediate fabric layer and a durable surface layer , in that order from the blade body side.2. The blade according to claim 1 , wherein said leading edge of said blade body has a circular arc shape in a cross section orthogonal to a longitudinal direction of said blade body claim 1 ,wherein a distal end of said leading edge, which is farthest from a rotational center of said blade body, comprises a tapered distal end, having a narrowing thickness in cross section orthogonal to said longitudinal direction of said blade body and having a narrowing width in said cross section from said leading edge to a trailing edge of said blade body, andwherein said laminated protective sheet is bonded to said tapered distal end of said leading edge of said blade body over two sides thereof that extend toward said trailing edge from a generating line of said arc-shaped cross section.3. The blade according to claim 2 , wherein a distal end of said laminated protective sheet that is farthest from said rotational center of said blade body is in the shape of a curved surface which is convex toward said distal end of said laminated protective sheet and which extends continuously over said two sides of said blade body.4. The blade according to claim 2 , wherein a distal end of said laminated protective sheet that is farthest from said rotational center of said ...

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25-04-2013 дата публикации

Rotor blade for a wind turbine and methods of manufacturing the same

Номер: US20130101428A1
Принадлежит: General Electric Co

In one aspect, a method for manufacturing a rotor blade for a wind turbine is disclosed. The method may generally include assembling a blade blank comprising a shear member and a volume of core material and removing material from the blade blank to form a body having a pressure side and a suction side extending between a leading edge and a trailing edge. The shear member may have a first end disposed adjacent to the pressure side and a second end disposed adjacent to the suction side. In addition, the method may include positioning a skin around an outer perimeter of the body.

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02-05-2013 дата публикации

ROTOR BLADE

Номер: US20130108454A1
Автор: LIND Soeren Oemann
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A rotor blade for a wind turbine includes a longitudinal rotor blade base body. A stiffening structure is disposed within the base body. The stiffening structure is divided in at least two, axially adjacently disposed stiffening structure segments, wherein at least one first stiffening structure segment is disposed with a different position or orientation relative to at least one further stiffening structure segment or relative to the longitudinal axis of the base body. 1. A rotor blade for a wind turbine , comprising:a longitudinal rotor blade base body,a stiffening structure disposed within the base body,wherein the stiffening structure is divided in at least two, axially adjacently disposed stiffening structure segments, andwherein at least one first stiffening structure segment is disposed with a different position or orientation relative to at least one further stiffening structure segment or relative to the longitudinal axis of the base body.2. The rotor blade according to claim 1 , wherein the at least one first stiffening structure segment is tilted or twisted relative to the longitudinal axis of the base body.3. The rotor blade according to claim 1 , wherein the at least one first stiffening structure segment is coaxially disposed within the longitudinal axis of the base body claim 1 , wherein it is tilted or twisted relative to the at least one further stiffening structure segment.4. The rotor blade according to claim 1 , wherein the at least one first stiffening structure segment is internally tilted or twisted relative to its own longitudinal axis.5. The rotor blade according to claim 2 , wherein claim 2 , if two or more first stiffening structure segments are tilted or twisted relative to the longitudinal axis of the base body claim 2 , the tilting or twisting angles of the respective stiffening structure segments are equal or different.6. The rotor blade according to claim 3 , wherein claim 3 , if two or more stiffening structure segments are coaxially ...

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16-05-2013 дата публикации

FLUID INTERFACE DEVICE AS WELL AS APPARATI AND METHODS INCLUDING SAME

Номер: US20130121826A1
Автор: Garver Theodore M.
Принадлежит:

A fluid interface device, such as an airfoil assembly, can include a device structure and at least one movable band oriented such that the band moves in a direction of fluid flow. The at least one movable band can be supported on the device structure such that an outer surface of the movable band is exposed along the device structure and is capable of movement relative thereto such that a relative velocity can be maintained between the outer surface and the device structure. The fluid interface device can also include an edge extension disposed along the leading edge of the device structure. An airplane, a wind turbine and a method are also included. 1. An airfoil assembly for use in a gaseous fluid , said airfoil assembly comprising:an airfoil structure having a longitudinal length and including a first longitudinal edge, a second longitudinal edge spaced laterally from said first longitudinal edge, a first side extending longitudinally along at least a portion of said length between said first and second longitudinal edges, and a second side extending longitudinally along at least a portion of said length between said first and second longitudinal edges and generally opposite said first side; and, a movable band having a width and supported on said airfoil structure such that at least a portion of said movable band is exposed along at least one of said first and second sides of said airfoil structure; and,', 'an edge extension including a longitudinal edge and supported along said first longitudinal edge of said airfoil structure in approximate alignment with at least a portion of said movable band such that relative movement between said airfoil assembly and a gaseous fluid can result in a gaseous fluid flow across said airfoil assembly with said longitudinal edge of said edge extension functioning as a leading edge of at least a portion of said airfoil assembly., 'a fluid interface device operatively associated with said airfoil structure, said fluid interface ...

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16-05-2013 дата публикации

Blade connection for a rotor blade of a wind turbine

Номер: US20130121836A1
Автор: Christian Guenther
Принадлежит: Nordex Energy SE and Co KG

A blade connection for a rotor blade of a wind turbine having a plurality of receptacles which extend in the longitudinal direction of the rotor blade and can each receive a longitudinal bolt and are in contact with a component having an inner thread for the longitudinal bolt. The rotor blade is manufactured from two materials, at least in the region of the blade connection, wherein a first material is a composite material, and a second material is a composite material provided with at least one reinforcement layer made of metal and/or ceramic. The receptacles are composed of the first material and the second material is bonded to the first material.

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23-05-2013 дата публикации

Aerogenerator blade and manufacturing method thereof

Номер: US20130129517A1

Aerogenerator blade and method of manufacturing thereof, the aerogenerator blade comprising an intrados shell, an extrados shell and a structural beam, the structural beam comprising a root spar, a transitional spar and a box spar, wherein the root spar has a substantially circular cross section configured to support the connection of the blade to the aerogenerator hub; the transitional spar tapers from the root spar towards the box spar; and the box spar tapers towards the blade tip; and wherein the aerogenerator blade is characterized by comprising: a first section of the structural beam including at least a root spar portion, a transitional spar portion and a box spar portion, the portions forming a first integral structural beam section; a second section including at least the counterparts of the root spar portion, the transitional spar portion and the box spar portion, said counterpart portions forming a second integral structural beam section; and wherein the first section of the structural beam is joined with the second section of the structural beam, forming the structural beam; and the intrados shell and the extrados shell are assembled on the structural beam.

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23-05-2013 дата публикации

ROTOR BLADE ELEMENT AND METHOD FOR IMPROVING THE EFFICIENCY OF A WIND TURBINE ROTOR BLADE

Номер: US20130129519A1
Принадлежит:

A rotor blade element and a method for improving the efficiency of a wind turbine rotor blade are provided. The wind turbine rotor blade element is adapted for mounting on the wind turbine rotor blade. The wind turbine rotor blade has a trailing edge, a suction side and a pressure side. The blade element has a trailing edge, a first surface and a second surface. The first surface forms a pressure side surface portion. The second surface has a suction side surface portion and a contact surface. 115-. (canceled)16. A rotor blade element to be mounted on a wind turbine rotor blade , comprising:a trailing edge;a first surface comprising a pressure side surface portion; anda second surface comprising a suction side surface portion and a contact surface.17. The rotor blade element as claimed in claim 16 , further comprising a trailing edge flange located between the contact surface and the suction side surface portion for attaching the rotor blade element to a trailing edge of the wind turbine rotor blade.18. The rotor blade element as claimed in claim 16 , wherein the first surface comprises a curvature and/or the suction side surface portion comprises a curvature and/or the contact surface comprises a curvature.19. The rotor blade element as claimed in claim 16 , wherein the rotor blade element comprises elastic material.20. The rotor blade element as claimed in claim 16 , wherein the rotor blade element comprises plastic material and/or thermoplastic material and/or a composite structure.210410. The rotor blade element as claimed in claim 16 , wherein the rotor blade element has a length of between . m and . m.22. The rotor blade element as claimed in claim 16 , wherein the rotor blade element comprises a double-sided adhesive tape for fixing the rotor blade element to the rotor blade.23. The rotor blade element as claimed in claim 16 , wherein the rotor blade element comprises a serrated trailing edge.24. The rotor blade element as claimed in claim 16 , wherein the ...

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13-06-2013 дата публикации

FORMATION OF A CORE STRUCTURE OF A WIND TURBINE ROTOR BLADE BY USING A PLURALITY OF BASIC CORE COMPONENTS

Номер: US20130149166A1
Автор: Schibsbye Karsten
Принадлежит:

A basic core component is provided for forming, together with at least one another basic core component, a core structure of a rotor blade of a wind turbine. The basic core component includes a precasted base element being made from a foam material, and a resin receiving layer, which is adhered to at least one surface of the precasted base element. When, during a casting procedure, the resin receiving layer adjoins the surface of another basic core component, the resin receiving layer is adapted to receive resin such that, after hardening the received resin, the basic core element and the another basic core element are mechanically connected with each other. 115-. (canceled)16. A basic core component for forming , together with at least one another basic core component , a core structure of a rotor blade of a wind turbine , the basic core component comprising:a precasted base element being made from a foam material, anda resin receiving layer, which is adhered to at least one surface of the precasted base element,wherein,when, during a casting procedure, the resin receiving layer adjoins the surface of another basic core component, the resin receiving layer is adapted to receive resin such that, after hardening the received resin, the basic core element and the another basic core element are mechanically connected with each other.17. The basic core component as set forth in claim 16 , wherein the foam material comprises at least one of Polyurethane claim 16 , Polyvinyl chloride claim 16 , Polyethylene terephthalate and Polybutylene terephthalate.18. The basic core component as set forth in claim 16 , wherein the resin receiving layer comprises a glass fiber material and/or a carbon fiber material.19. The basic core component as set forth in claim 16 , wherein the basic core component comprises a cross sectional shape having a first side and a second side claim 16 , wherein the first side is oriented inclined with respect to the second side.20. The basic core ...

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18-07-2013 дата публикации

Low-Cost Molded Wind Turbine Blade

Номер: US20130183161A1
Принадлежит: Pika Energy LLC

An optimally-shaped single part molded wind turbine blade is provided for small wind turbines. Two mold bodies are brought together to form a cavity, and a third retractable mold body is inserted into the cavity. A flowable material such as filled thermoplastic resin is introduced into the space between the mold bodies and solidified. The retractable mold body is retracted and the mold is opened to reveal a single-part wind turbine blade with a hollow root region. 1. A method of forming a wind turbine blade , the method comprising:bringing a first mold body into proximity with a second mold body;positioning a a third, retractable mold body between the first and second mold bodiesinducing a material to flow in the space between the mold bodies, the flowable material subsequently becoming substantially non-flowable, andretracting the third mold body and separating the first and second mold bodies to release a wind turbine blade.2. The method of wherein the third mold body is refracted after the first and second mold bodies are separated.3. The method of wherein the third mold body is tapered to facilitate retracting the third mold body.4. The method of and further comprising forming mounting holes in the wind turbine blade.5. A method comprising:introducing a flowable material in a space between two wind turbine blade mold bodies and a third retractable mold body;allowing the flowable material to become substantially non-flowable;retracting the third mold body; andremoving the wind turbine blade from the two wind turbine blade mold bodies.6. The method of wherein the third mold body is retracted from a rootward portion of the wind turbine blade.7. The method of wherein the third mold body is tapered from the rootward portion of the wind turbine blade toward a tipward portion of the wind turbine blade.8. The method of wherein the flowable material is formed of at least one of thermoplastic resin claim 5 , fiber-reinforced thermoplastic resin claim 5 , thermoset resin ...

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25-07-2013 дата публикации

METHOD OF MANUFACTURING A WIND TURBINE BLADE AND A WIND TURBINE BLADE

Номер: US20130189114A1
Принадлежит:

The invention relates to a method for manufacturing a wind turbine blade, comprising the steps of pre-manufacturing a first blade member, positioning said pre-manufactured first blade member in a joining mold and bonding said first blade member with a second blade member using a vacuum assisted infusion process so as to form an integrated blade part. 1. A method for manufacturing a wind turbine blade , comprising the steps of:pre-manufacturing a first blade member,positioning said pre-manufactured first blade member in a joining mold, and bonding said first blade member with a second blade member using a vacuum assisted infusion process so as to form an integrated blade part.2. The method according to claim 1 , comprising the steps of:curing the pre-manufactured first blade member,demolding the pre-manufactured first blade member, andtransporting the pre-manufactured first blade member to the joining mold.3. The method according to claim 1 , comprising the steps of:curing the integrated blade part,bonding the integrated blade part with other blade members or other integrated blade parts using a vacuum assisted infusion process, andrepeating the above steps until the entire blade or an entire half shell of the blade is completed.4. The method according to claim 1 ,wherein the first blade member comprises a spar cap, andwherein the first blade member is positioned in the center of the joining mold.5. The method according to claim 1 ,wherein the first blade member comprises a bonding flange for bonding said first blade member to the second blade member.6. The method according to claim 5 ,wherein the second blade member is made up of blade building material, comprising the steps of:positioning said blade building material in the joining mold, wherein at least part of the blade building material overlaps the first blade member,applying a vacuum to the blade building material, andinfusing the blade building material with bonding means.7. The method according to claim 6 , ...

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15-08-2013 дата публикации

Wind turbine rotor blade assembly with root extension panel and method of assembly

Номер: US20130209264A1
Принадлежит: General Electric Co

A wind turbine rotor blade assembly and associated method include a rotor blade having a pressure side, a suction side, a leading edge, and a trailing edge extending in a generally span-wise direction between a tip and a root. An edge extension panel is attached along either of the leading edge or trailing edge (or along both edges) in a generally span-wise direction from adjacent the root towards the tip. The edge extension panels include a cured and hardened viscous material continuous core formed onto the leading or trailing edge with a contoured generally aerodynamic outer surface.

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15-08-2013 дата публикации

ROD WINDING STRUCTURE IN COMPOSITE DESIGN

Номер: US20130209728A1
Автор: Buechler Dirk
Принадлежит: BALTICO GMBH

A complex, three-dimensional lattice made of previously impregnated fiber strands is laid over nodes, thus forming the main body of the component to be produced. The composite wound rod structure, comprising a skeleton of ribs that are formed of impregnated fiber strands in a continuous winding and laying process, is characterized in that the ribs are solid ribs, or lattice structure ribs prefabricated from fiber strands, which contain nodes, over which the impregnated fiber strands are alternately, and incrementally, placed diagonally, horizontally and vertically, until the desired strand thickness has been reached, and the wound rod structure can be segmented as needed. The solid ribs are made of fiber composites, aluminum, or other lightweight materials. 117-. (canceled)18. A composite wound rod structure , comprising a first set of impregnated fiber strands that are wound and laid by a continuous process so as to be alternately and incrementally diagonal , horizontal and vertical , the process being carried out until a desired strand thickness has been reached , and a skeleton of ribs having nodes integrally formed thereon or having attachment parts forming nodes , wherein the ribs are solid ribs or lattice structure ribs prefabricated from a second set of impregnated fiber strands , the nodes forming mutually opposed sites for retaining the fiber strands of the first set on outer edges of the ribs and being uniformly distributed over each entire rib , the openings being of sufficient diameter to receive the fiber strands of the first set and being constricted to a diameter less than that of the fiber strands of the first set immediately proximate to the outer edge of the rib so as to retain the fiber strands of the first set in the openings.19. The wound rod structure according to claim 18 , wherein the shapes of the ribs are based on an outer profile of the wound rod structure claim 18 , and the wound rod structure is divided into sections by the ribs claim 18 ...

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29-08-2013 дата публикации

WIND TURBINE BLADE, METHOD FOR MANUFACTURING WIND TURBINE BLADE, AND WIND POWER GENERATOR AND WIND TURBINE BLADE MONITORING SYSTEM INCLUDING WIND TURBINE BLADE

Номер: US20130220005A1
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

A wind turbine blade used in a wind power generator that receives wind and rotates a rotating shaft of a generator includes at least two layers on a surface of a blade body, one of the layers being colored with a coating material different in color from the blade body and the rest of the layers. The layers are provided at least on a tip, particularly at a front edge of the wind turbine blade. A wind turbine blade monitoring system that monitors the wind turbine blade includes: an imaging unit that images the wind turbine blade in a predetermined position over a predetermined period at timing when the wind turbine blade passes through the predetermined position; and an indication unit that chronologically indicates imaging results of the wind turbine blade imaged by the imaging means. 1. A wind turbine blade of a wind power generator that receives wind and rotates a rotating shaft of a generator , comprising:at least two layers on a surface of a blade body, one of the layers being colored with a coating material different in color from the blade body and the rest of the layers.2. The wind turbine blade according to claim 1 , wherein the layers are provided on a tip of the wind turbine blade.3. The wind turbine blade according to claim 1 , wherein the layers are provided at least at a front edge on the tip of the wind turbine blade.4. The wind turbine blade according to claim 1 , wherein the coating material for coloring the layers has erosion resistance.5. The wind turbine blade according to claim 1 , wherein each of the two or more layers is coatings applied with a thickness of a predetermined control value.6. A wear control apparatus comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'imaging means for imaging a wind turbine blade according to in a predetermined position at timing when the wind turbine blade passes through the predetermined position; and'}indication means for indicating imaging results of the wind turbine blade imaged by the imaging means ...

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12-09-2013 дата публикации

REMOVABLE ROTOR BLADE TIP

Номер: US20130236321A1
Автор: Olthoff Gerhard
Принадлежит: Wobben Properties GMBH

One or more embodiments are directed to a rotor blade tip for a rotor blade, in particular for a rotor blade of a wind power installation, which is in the form of an independent portion which can be connected to the rotor blade and has a first connecting surface directed in the direction of the rotor blade to be connected. For making the connection to the rotor blade provided at the connecting surface are first guide means with a guide direction when making the connection to the rotor blade and first locking means for fixing the rotor blade tip to the rotor blade as first component parts of a connecting mechanism. 1. A rotor blade tip for connecting to a rotor blade of a wind power installation , the rotor blade tip comprising:a first connecting surface facing a direction of the rotor blade to be connected and for making the connection to the rotor blade, the connecting surface including:first guide means having a guide direction for making the connection to the rotor blade; andfirst locking means for fixing the rotor blade tip to the rotor blade when the first guide means makes the connection to the rotor blade.2. The rotor blade tip according to wherein the first guide means comprises at least one plug element arranged parallel to the guide direction.3. The rotor blade tip according to wherein the first locking means includes a projection as a first connecting element for making a releasable claim 1 , positively locking connection to a corresponding second connecting element on the rotor blade.4. The rotor blade tip according to wherein the projection is arranged centrally on the first connecting surface and has a projection surface parallel to the guide direction.5. The rotor blade tip according to wherein projection surface has at least one opening having a shape that is complementary to that an opening of the second connecting element.6. The rotor blade tip according to wherein the first connecting element and the second connecting element each have an aperture ...

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12-09-2013 дата публикации

ADVANCED AERODYNAMIC AND STRUCTURAL BLADE AND WING DESIGN

Номер: US20130236327A1
Автор: Wirz Richard E.

An airfoil having an inboard blade section () and an outboard blade section (). The inboard blade section () has a mid-blade end (), and the inboard blade section () includes a biplane wing (). The multiplane wing () has a first blade () and a second blade (). The first blade () has a first airfoil cross-section (), and the second blade () has a second airfoil cross-section (). The first blade () is generally parallel to the second blade (). The outboard blade section () has a mid-blade end (), and the outboard blade section () includes a monoplane wing () with a third airfoil cross-section (). The mid-blade end () of the outboard blade section () is joined to the mid-blade end () of the inboard blade section (). 1. A rotor blade for a wind turbine m relation to a wind direction , the rotor blade comprising:(a) a blade root;(b) an inboard blade section having a length, an inboard end, and a mid-blade end opposite the inboard end, the inboard end of the inboard blade section being joined to the blade root, the inboard blade section comprising a biplane wing, the biplane wing having a first blade and a second blade, the first blade having a first airfoil cross-section, a first leading edge, a first trailing edge, a first chord, and an upper surface, the second blade having a second airfoil cross-section, a second leading edge, a second trailing edge, a second chord, and a lower surface, the first chord being generally parallel to the second chord, the second blade being downwind from the first blade with respect to the wind direction, the first blade having a positive stagger with respect to the second blade such that the first leading edge is offset from the second leading edge in a direction of thrust and the first trailing edge is offset from the second trailing edge in a direction of thrust, the first airfoil cross-section and the second airfoil cross-section each being a SC2-0714 airfoil profile; and(c) an outboard blade section having a length, a mid-blade end, ...

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19-09-2013 дата публикации

UV-IR COMBINATION CURING SYSTEM AND METHOD OF USE FOR WIND BLADE MANUFACTURE AND REPAIR

Номер: US20130240118A1
Принадлежит: GENERAL ELECTRIC COMPANY

A UV-IR combination curing system and method for manufacture and repair of composite parts, such as for use in wind blade manufacture and repair. The system and method utilize UV and IR dual radiation sources to cure glass fiber reinforced laminates containing a photo initiator. The UV and IR dual radiation sources can be configured as discrete stand-alone UV and IR lamps used in a side by side configuration, a plurality of UV lamps with thermal IR radiation, a combined UV/IR lamp, or other forms of light sources providing both UV and IR radiation. To achieve high glass transition and complete curing of thick laminates, the IR radiation source is initially turned on to heat the laminate to close to 40° C.-100° C. before the UV radiation source is turned on. The IR radiation source can be turned off after UV radiation source is activated. 1. A method , comprising:providing a first radiation source configured to heat a plurality of layers of a composite structure comprising a reinforced resin having a reactive group and a photoinitiator throughout a thickness of the plurality of layers of the composite structure;applying a first radiation from the first radiation source, forming a plurality of pre-heated layers of a composite structure;providing a second radiation source configured to cure the plurality of pre-heated layers of the composite structure through a thickness of the composite structure; andapplying a second radiation from the second radiation source, forming a covalent bond across an interface of a first layer of the plurality of pre-heated layers and an adjacent successive layer of the plurality of pre-heated layers and a plurality of additional covalent bonds across additional interfaces of the plurality of pre-heated layers.2. The method of claim 1 , wherein providing a first radiation source comprises providing an infrared radiation source.3. The method of claim 2 , wherein providing a first radiation source comprises providing a radiation source ...

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19-09-2013 дата публикации

PROTECTING FILM FOR BLADE OF WIND POWER GENERATOR

Номер: US20130243605A1
Принадлежит: NITTO DENKO CORPORATION

The present invention provides a protection film for blades to be adhered to the blade surface of wind power generators, which has a substrate and a pressure-sensitive adhesive layer on one surface of the substrate. 110.-. (canceled)11. A wind power generator blade having a surface covered with a protection film , wherein the protection film comprises (a) a substrate comprised of a composite film comprising an acrylic polymer and a urethane polymer , and (b) a foam-containing pressure-sensitive adhesive layer formed on one surface of the substrate , and wherein the pressure-sensitive adhesive layer is in contact with the surface of the wind power generator blade.12. (canceled)13. The blade according to claim 11 , wherein the foam-containing pressure-sensitive adhesive layer is an acrylic pressure-sensitive adhesive.14. (canceled)15. A wind power generator having the wind power generator blade according to .16. (canceled)17. A wind power generator having the wind power generator blade according to .18. (canceled) The present invention relates to a blade of a wind power generator, which is protected by a protection film having a pressure-sensitive adhesive layer, the protection film, and a wind power generator having such blade.Wings of a wind power generator (hereinafter to be referred to as blade) rotate in the flow of air, which is a fluid, and convert the energy of rotation to electricity. For efficient rotation on receipt of the flow of a fluid, it is important to reduce blade weight to decrease the inertial force. In addition, since many of the blades for wind power generators exceed 50 m in full length, weight reduction of the blades leads to the downsizing and light weight of the generator itself. For efficient conversion of the fluid flow to the rotational movement of the blades, moreover, an appropriate design of a blade shape and maintenance of the shape, as well as smoothness of the surface and maintenance thereof are required.As blade materials, light ...

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26-09-2013 дата публикации

ADHESIVE APPLICATION APPARATUS FOR MANUFACTURING BLADE FOR WIND POWER GENERATOR

Номер: US20130247821A1
Принадлежит: SAMSUNG HEAVY IND. CO., LTD.

Disclosed is an adhesive application apparatus for manufacturing a blade for a wind power generator. The adhesive application apparatus for manufacturing a blade for a wind power generator according to an exemplary embodiment of the present invention may include: a blade mold on which a blade is mounted; a plurality of adhesive application units positioned to be spaced apart from the blade mold and configured to apply an adhesive on an inner surface of the blade; a horizontal transfer unit configured to transfer the adhesive application unit in a horizontal direction; and a vertical transfer unit configured to transfer the adhesive application unit in a vertical direction. 1. An adhesive application apparatus for manufacturing a blade for a wind power generator , comprising:a blade mold on which a blade is mounted;a plurality of adhesive application units positioned to be spaced apart from the blade mold and configured to apply an adhesive on an inner surface of the blade;a horizontal transfer unit configured to transfer the adhesive application unit in a horizontal direction; anda vertical transfer unit configured to transfer the adhesive application unit in a vertical direction.2. The adhesive application apparatus of claim 1 , wherein:the horizontal transfer unit includes:a first carriage and a second carriage, which move along a rail unit formed on a surface of the blade mold and face each other;a shaft which connects the first carriage and the second carriage to each other; anda slider which moves the adhesive application unit along the shaft.3. The adhesive application apparatus of claim 2 , wherein:the vertical transfer unit includes:a first arm having a first one end portion which is connected to the shaft to be rotatable about the shaft; anda second arm having a second one end portion which is formed with a hinge shaft and connected to a first other end portion of the first arm, and configured to be rotatable about the hinge shaft, andthe adhesive ...

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26-09-2013 дата публикации

Winglet for a wind turbine rotor blade

Номер: US20130251535A1
Принадлежит: General Electric Co

In one aspect, a winglet for a rotor blade is disclosed. The winglet may generally include a winglet body extending at least partially between a winglet origin and a blade tip. The winglet body may define a sweep and a pre-bend. The sweep defined between the winglet origin and the blade tip may range from about 0.5% to about 4.0% of a span of the rotor blade. The pre-bend defined between the winglet origin and the blade tip may range from about 1.5% to about 4.5% of the span of the rotor blade

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10-10-2013 дата публикации

Ring airfoil with parallel inner and outer surfaces

Номер: US20130266438A1
Принадлежит: FloDesign Wind Turbine Corp

A ring airfoil with a voluminous leading edge region, an intermediate region, a trailing edge region including a flap. The ringed structural leading edge region combined with a rigid trailing edge region having intermediate discrete support portions extending therebetween provides sufficient rigidity to support the flap on the trailing edge region while using a membrane intermediate surface to form a portion of the intermediate region of the airfoil.

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10-10-2013 дата публикации

Method of Using a Formable Core Block for a Resin Impregnation Process

Номер: US20130266449A1
Принадлежит: LM GLASFIBER A/S

A use of a core block for an impregnation process as well as a composite structure comprising such a core block is described. The core block has a first surface and a second surface, and a number of first grooves is formed in the first surface of the core. Furthermore, a number of second grooves is formed in the second surface of the core. The first grooves have a first height (h) and a bottom, and the first grooves and the second grooves are part of a resin distribution network formed in the core block. The distance (t) between the bottom of the first grooves and the second surface of the core block is of such a size that the core block is flexible along the first grooves. Additionally, the sum of the first height and the second height is larger than the thickness of the core block, and at least one of the first grooves in the first surface of the core block crosses at least one of the second grooves in the second surface of the core block. 115-. (canceled)1630. A core block () for use in a resin impregnation process , such as vacuum assisted resin transfer molding , the core block having a thickness (h) and comprising:{'b': 35', '36', '35', '31', '31', '1', '36', '32', '2, 'a first surface () and a second surface (), the first surface () comprising a number of first grooves (), the first grooves () having a first height (h) and a bottom; and the second surface () comprising a number of second grooves () having a second height (h);'}{'b': 31', '32', '30, 'the first grooves () and the second grooves () forming part of a resin distribution network formed in the core block ();'}{'b': 1', '2, 'wherein the sum of the first height and the second height (h+h) is larger than the thickness (h) of the core block;'}{'b': 31', '35', '30', '32', '36', '30, 'wherein at least one of the first grooves () in the first surface () of the core block () crosses at least one of the second grooves () in the second surface () of the core block ();'}{'b': 31', '36', '30', '30', '31, ' ...

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31-10-2013 дата публикации

FIBRE REINFORCED COMPOSITE MOULDING

Номер: US20130287589A1
Принадлежит:

The present invention regards a fibre-reinforced composite moulding with an outer () structure and an inner structure (), wherein the outer structure () is formed from at least one layer of fibrous reinforcing material and a cured first resin material, and the inner structure () is formed from a plurality of layers of fibrous reinforcing material and a second cured resin material, wherein the viscosity of the uncured first resin material is lower than the viscosity of the uncured second resin material and wherein in the composite moulding the two cured resin materials are at least partially mixed with each other. It also regards a process for the production of such a fibre-reinforced composite moulding. 1. A fibre-reinforced composite moulding with an outer structure and an inner structure , wherein the outer structure is formed from at least one layer of fibrous reinforcing material and a first resin material , and the inner structure is formed from a plurality of layers of resin impregnated fibrous reinforcing material or prepreg comprising a second resin material , wherein the molding is configured for processing by infusion or injection of a flowable first resin material into the moulding and curing the first and second resin material.2. The moulding of claim 1 , wherein the first and second resin material are simultaneously cured or part cured.3. The moulding of claim 1 , wherein said outer structure comprises an outer structure located below the inner structure and an outer structure located above the inner structure and wherein during infusion the first resin material infuses the outer structure below the inner structure before the outer structure above the inner structure is completely infused.4. The moulding of claim 1 , wherein the moulding comprises a load carrying core structure claim 1 , the core structure comprising apertures to enable visual identification of the location of the resin in the assembly.5. The moulding of claim 4 , wherein the inner ...

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28-11-2013 дата публикации

Method and equipment for turning a blade or a blade part for a wind turbine during production or installation

Номер: US20130315740A1
Автор: Jan Westergaard
Принадлежит: Envision Energy Denmark ApS

A method for installing an inner blade part or a wind turbine blade and to a lifting bracket for use in performing said method, e.g., a inner blade part for a partial pitch wind turbine blade comprising an inner blade part and an outer blade part, said inner blade part comprising a first flange for connection to a hub flange at a wind turbine hub and a second flange for connection to an outer blade part, said flanges all comprising a number of bolts and/or bolt holes. The lifting bracket has a flange for connection to a suitable number of bolts and/or bolt holes at said second flange on the inner blade part, the flange having a first surface and an opposite second surface arranged for interfacing with the first flange, and further the lifting bracket also has at least one lifting lug and at least one counter weight.

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05-12-2013 дата публикации

TRAILING EDGE TAPE

Номер: US20130323070A1
Автор: Grabau Peter
Принадлежит: ENVISION ENERGY (DENMARK) APS

A wind turbine rotor blade for a wind turbine having a length extending from a first end, a leading edge and a trailing edge, where a pressure side and a suction side extend between the leading edge and the trailing edge and thus define an airfoil shaped cross section. At least along a part of the length of the wind turbine rotor blade, the trailing edge comprises a trailing edge part having a first and a second installation flange, each of which has a width. The installation flanges are arranged in connection with a trailing edge extender, the first and second installation flanges both having an inner surface for installation on the pressure side and the suction side of the wind turbine blade. Also, method for fitting a wind turbine rotor blade with a trailing edge part is provided. 1. A wind turbine rotor blade for a wind turbine , comprising:a length extending from a first end to a second end,a leading edge and a trailing edge,a pressure side and a suction side extending between said leading edge and trailing edge and defining an airfoil shaped cross section,wherein said trailing edge comprises a trailing edge part along at least a part of said length of the wind turbine rotor blade, said trailing edge part comprising a first and a second installation flange, each of which has a width, said installation flanges being arranged in connection with a trailing edge extender,wherein said first and second installation flanges both comprise an inner surface for installation on the pressure side and the suction side of said wind turbine rotor blade, andwherein said trailing edge part comprises an area at an intersection between said two installation flanges and said trailing edge extender and at which area a ductile material is arranged.2. A wind turbine rotor blade according to claim 1 , wherein said ductile material is a high viscosity adhesive.3. A wind turbine rotor blade according to claim 1 , wherein said trailing edge part comprises at least one embedded element at ...

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12-12-2013 дата публикации

Multilayer Complex And Use Thereof For Manufacturing Parts Made Of A Composite Material, And Method For Manufacturing Such A Part

Номер: US20130327220A1
Автор: De Mulatier Bernard
Принадлежит:

A multilayer complex for the vacuum molding of a composite part containing a fibrous reinforcement and a polymer resin, including a peel-ply fabric combined with a microporous membrane which is at least pervious to gases. 1. A multilayer complex for the vacuum molding of a composite part containing a fibrous reinforcement and a polymer resin , comprising a peel-ply fabric combined with a microporous membrane which is at least pervious to gases.2. The multilayer complex of claim 1 , characterized in that the microporous membrane contains a polymer selected from the group consisting of polyolefins claim 1 , polyurethanes claim 1 , and fluoropolymers.3. The multilayer complex of claim 1 , characterized in that the microporous membrane has a pore density ranging between 2 billion and 8 billion pores/cm claim 1 , an average pore diameter being smaller than 20 μm.4. The multilayer complex of claim 1 , characterized in that the microporous membrane has a thickness ranging between 20 and 100 μm.5. The multilayer complex of claim 1 , characterized in that the microporous membrane has an average permeability of gases greater than 1 L/m/s under 2 claim 1 ,000 Pa.6. The multilayer complex of claim 1 , characterized in that the microporous membrane is associated with the peel-ply fabric by gluing with glue dots.7. The multilayer complex of claim 6 , characterized in that the glue dots are positioned so that their density is from 30 to 180 glue dots per cmof a surface area of the microporous membrane and in that a surface area occupied by said glue dots amounts to from 10 to 50% of the surface area of the microporous membrane.8. The multilayer complex of claim 1 , characterized in that the peel-ply fabric is based on polyester or polyamide fibers.9. The multilayer complex of claim 1 , characterized in that the multilayer complex has a thickness ranging between 130 and 270 μm.10. The multilayer complex of claim 1 , characterized in that the multilayer complex comprises a bleeder ...

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19-12-2013 дата публикации

FASTENING SYSTEM FOR WIND TURBINES AND CORRESPONDING INSTALLATION METHODS

Номер: US20130336716A1
Принадлежит: GAMESA INNOVATION & TECHNOLOGY, S.L.

Fastening system for wind turbines characterized by comprising a front flange () and a rear flange (), which are joined together and supported on the hollow rotary shaft (), and coupled to the pitch system comprising the bearings () for the shaft and the star-shaped part (). The fastening method couples the rear flange () to the hollow shaft () with a tapered collar () and also to the front flange () through some spacer bushings (). The collar () uses friction to transfer significant moments and axial stresses so as to improve the fastening system, and the direction of the bolts on the collar () and the bolts () on the spacer bushings () simplify inspection and maintenance tasks. 1. Fastening system used for the joint between the rotary shaft and the wind turbine pitch system , characterized in that{'b': 9', '8, 'it comprises a double flange formed by a front flange () and a rear flange () joined together'}{'b': 9', '2', '4, 'the front flange () is anchored to the pusher shaft () and the pitch system formed by the star-shaped part (),'}{'b': 8', '2, 'the rear flange (), through which the hollow rotary shaft goes (), and which works on it by means of friction, and'}{'b': 9', '8', '11, 'both flanges, front () and back (), are coupled together with at least two bushings ().'}2112. Fastening system for wind turbines according to the first claim , characterized in that both flanges have the same shape , their outer contour houses at least one pair of periphery fastening holes for anchoring the bushings () and their inner surface includes some outer-edge orifices for anchoring and central orifices whereby the hollow shaft () goes through them.3. Fastening system for wind turbines according to the first claim , characterized in that{'b': 9', '6', '2, 'the front flange () has through holes for anchoring to the bearing box () that are distributed around the periphery of the circumference inscribed on the triangle, and through holes for anchoring to the hollow shaft () that ...

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19-12-2013 дата публикации

WIND TURBINE BLADE COMPRISING ROOT END BULKHEAD

Номер: US20130336789A1
Автор: Berg Kore Bjarke
Принадлежит: LM WP PATENT HOLDING A/S

A wind turbine blade () for a rotor of a wind turbine () having a substantially horizontal rotor shaft is disclosed. The rotor comprises a hub (), from which the blade () extends substantially in a radial direction when mounted to the hub (), the blade having a longitudinal direction (r) with a tip end () and a root end () and a transverse direction. The wind turbine blade comprises a blade shell defining a profiled contour of the blade and having an inner shell wall, wherein the blade is provided with a bulkhead mounted to the inner shell wall at the root end of the blade via an attachment part, the bulkhead comprising a first side and a second side. The attachment part is integrally formed with or connected to the bulkhead, and the attachment part comprises an elastomeric material. 110161425. A wind turbine blade () having a longitudinal direction (r) with a tip end () and a root end () and a transverse direction , the wind turbine blade comprising a blade shell defining a profiled contour of the blade and having an inner shell wall () , wherein{'b': 10', '50', '60', '50', '54', '55, 'the blade () is provided with a bulkhead () mounted to the inner shell wall at the root end of the blade via an attachment part (), the bulkhead () comprising a first side () and a second side (), characterised in that'}{'b': 60', '50', '60, 'the attachment part () is integrally formed with or connected to the bulkhead (), and in that the attachment part () comprises an elastomeric material.'}2605010. A wind turbine blade according to claim 1 , wherein the attachment part () and the bulkhead () together seal the root end of the blade ().36025. A wind turbine blade according to claim 1 , wherein an outer diameter of the attachment part () is equal to or larger than an inner diameter of the inner shell wall ().46025. A wind turbine blade according to claim 3 , wherein the outer diameter of the attachment part () is at least 1 cm claim 3 , or at least 2 cm claim 3 , larger than the ...

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02-01-2014 дата публикации

MANUFACTURE OF A ROTOR BLADE FOR A WIND TURBINE

Номер: US20140003953A1
Принадлежит: REPOWER SYSTEMS SE

A method and manufacturing unit for producing a rotor blade () of a wind turbine () from at least a first rotor blade element (′) and a second rotor blade element (′). The first rotor blade element (′) and the second rotor blade element (′) are positioned in the desired relative arrangement with respect to each other such that a joint gap () remains between the first rotor blade element (′) and the second rotor blade element (′). Adhesive is introduced into the joint gap () for joining the first rotor blade element (′) and the second rotor blade element (′). 151. A method for producing a rotor blade () of a wind turbine () , comprising the steps of:{'b': 11', '11', '12', '12', '13', '11', '11', '12', '12, 'positioning a first rotor blade element (, ′) and a second rotor blade element (, ′) in a desired relative arrangement with respect to each other such that a joint gap () remains between the first rotor blade element (, ′) and the second rotor blade element (, ′) and'}{'b': 11', '11', '12', '12', '13, 'joining the first rotor blade element (, ′) and the second rotor blade element (, ′) by introducing adhesive into the joint gap ().'}21313. The method according to claim 1 , wherein the adhesive is introduced into the joint gap () at a first longitudinal side of the joint gap ().3. The method according to claim 1 ,{'b': '13', 'wherein the joint gap () is sealed along a second longitudinal side which extends opposite the first longitudinal side, and'}{'b': 12', '12', '14', '122, 'wherein during production of the second rotor blade element (, ′), a seal (, ) is integrated into the second rotor blade element.'}4131313. The method according to claim 1 , wherein the adhesive is introduced starting at one end of the joint gap () along a longitudinal extension of the joint gap () stepwise or continuously proceeding in the joint gap ().51320. The method according to claim 1 , wherein the adhesive is introduced in the joint gap () with an adhesive application apparatus (). ...

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23-01-2014 дата публикации

WIND TURBINE BLADE HAVING A CORROSION PROTECTION STRUCTURE, AND WIND TURBINE HAVING THE SAME

Номер: US20140023511A1
Автор: Lund Lars
Принадлежит: VESTAS WIND SYSTEMS A/S

The present invention relates to a wind turbine component, having a connecting portion for connecting the wind turbine component to another turbine component and at least part of the connecting portion is formed of a first type of metal, characterized in that: the connecting portion is further provided with an additional part formed of a second type of metal which is connected to the metallic part of the connecting portion; and the second type of metal is more active than the first type of metal, whereby the additional part forms a sacrificial anode. The present invention further relates to a wind turbine having the above component. 1. A wind turbine blade having a connecting portion at a root section for connecting the wind turbine blade to a hub , the root section provided with a plurality of inserts extending into the blade spaced around the root section by which the connection can be made between blade and hub , the inserts having exposed end faces and being formed of a first type of metal , characterized in that additional parts of a second type of metal are connected to the inserts , the second type of metal being more electrochemically active than the first type of metal , whereby the additional part forms a sacrificial anode.2. (canceled)3. The wind turbine blade according to claim 1 , wherein claim 1 , the inserts are of cylindrical form at end region adjacent their exposed face claim 1 , and the additional parts are in the form of ring secured on the outside of the cylindrical surface.4. The wind turbine blade according to claim 1 , wherein claim 1 , adhesive is provided between the insert and the blade root section to fasten the insert therein claim 1 , and the additional part is arranged at the boundary claim 1 , which is facing exterior environment claim 1 , of the insert and the blade root section; andthe boundary between the additional part and the blade root section is also covered with adhesive so as to prevent water/moisture etc. from contacting ...

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27-02-2014 дата публикации

Facility and method for manufacturing a rotor blade of a wind turbine and method for setting up the facility

Номер: US20140054811A1
Автор: Karsten Schibsbye
Принадлежит: SIEMENS AG

A facility for manufacturing a rotor blade of a wind turbine is provided. The facility includes an injection machine for injecting an injection material into a mould to form the rotor blade, a movable tank system for accommodating precursor material to be supplied to the injection machine for preparing the injection material, wherein the movable tank system has wheels for moving the tank system. Further, a method for setting up a facility and a method for manufacturing a rotor blade are described.

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13-03-2014 дата публикации

Attachment system for a wind turbine rotor blade accessory

Номер: US20140072440A1
Принадлежит: General Electric Co

A rotor blade assembly for a wind turbine has a rotor blade. A strip-member blade accessory is mounted to one of the rotor blade surfaces that stretches under normal operating conditions of the wind turbine. The blade accessory has a base portion. An attachment layer connects the base portion to the rotor blade surface and has a lower shear modulus than the base portion to allow for shear slippage between the base portion and the underlying rotor blade surface.

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13-03-2014 дата публикации

Load and noise mitigation system for wind turbine blades

Номер: US20140072441A1
Принадлежит: SIEMENS AG

A load and noise mitigation system ( 40 ) for attachment to a wind turbine blade ( 20 ). The system ( 40 ) includes a flex member ( 42 ) for attachment adjacent the trailing edge ( 28 ) of the blade ( 20 ) and a noise reduction member ( 44 ) associated with the flex member ( 42 ). At least a portion of the flex member ( 42 ) is configured to deform and change in orientation from a first position ( 58 ) to a second activated position ( 60 ) in the presence of an air pressure force on at least a portion of the flex member ( 42 ).

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03-04-2014 дата публикации

Wind Turbine Rotor Blade Components And Methods Of Making Same

Номер: US20140090781A1
Принадлежит: NEPTCO, INC.

Structural preform layers of multiple rigid unidirectional strength elements or rods are constructed and arranged for use in fabricating load-bearing support structures and reinforcements of wind turbine blades. Individual preform layers include multiple elongate unidirectional strength elements or rods arranged in a single layer along a longitudinal axis of the preform layer. Each preform layer includes one or more fibrous carrier layers to which the multiple strength elements or rods are joined and arranged in the single layer. Each strength element or rod is longitudinally oriented and adjacent to other elements or rods. Individual strength elements or rods include a mass of substantially straight unidirectional structural fibers embedded within a matrix resin such that the elements or rods have a substantially uniform distribution of fibers and high degree of fiber collimation. The relative straightness of the fibers and fiber collimation provide strength elements or rods and the preform layers with high rigidity and significant compression strength. 1. A method for assembling a structural element for a wind turbine blade comprising the steps of:providing a composite beam including two or more preform layers, each preform layer including multiple elongate strength rods which are arranged longitudinally relative to one another in a single layer, and wherein each strength rod is positioned adjacent to and spaced from at least one adjacent strength rod;each strength rod including multiple unidirectional, substantially straight collimated structural fibers fixed in a solidified matrix resin so that each strength rod is rigid and defines a finished geometry including a selected length and width and a selected profile;providing, for each preform layer, a carrier layer and joining the multiple elongate strength rods to the carrier layer by an adhesive applied to at least one of the carrier layer and the strength rods;wherein the carrier layer locates adjacent strength ...

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06-01-2022 дата публикации

APPARATUS AND METHOD FOR MANUFACTURING A ROTOR BLADE FOR A WIND TURBINE, AND A WIND TURBINE

Номер: US20220003203A1
Автор: Bendel Urs
Принадлежит:

A device and a method for manufacturing a rotor blade for a wind energy installation, wherein the rotor blade includes at least two rotor blade shells which are bonded together, includes a holding device arranged to hold a rotor blade shell such that at least one bonding surface on the rotor blade shell and/or on a web attached to the rotor blade shell is exposed. The bonding surface of the rotor blade shell can be bonded to a further rotor blade shell. The device further includes a robot arm arranged to apply adhesive to the at least one bonding surface, a carriage on which the robot arm is mounted, and a guide device mounted on the holding device. The carriage is mounted on the guide device so as to be movable. The guide device is arranged to guide the carriage and the robot arm along the holding device, in particular along the bonding surface. 113-. (canceled)14. A device for manufacturing a rotor blade for a wind energy installation , wherein the rotor blade includes at least two rotor blade shells that are bonded to one another , the device comprising:a holding device configured to hold a rotor blade shell in a position in which at least one bonding surface, which is provided on at least one of the rotor blade shell or on a web attached to the rotor blade shell, is exposed, at which bonding surface the rotor blade shell is adapted to be bonded to a further rotor blade shell;a guide device mounted on the holding device;a robot arm configured to apply adhesive to the at least one bonding surface; anda carriage movably supported by the guide device and supporting the robot arm thereon;wherein the guide device is configured to guide the carriage, together with the robot arm mounted thereon, along the holding device.15. The device of claim 14 , wherein the guide device is configured to guide the carriage along the holding device such that the at least one bonding surface is accessible to the robot arm.16. The device of claim 14 , wherein the holding device comprises ...

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06-01-2022 дата публикации

WIND TURBINE BLADE LIGHTNING PROTECTION SYSTEM

Номер: US20220003214A1
Принадлежит:

Disclosed is a wind turbine blade comprising a shell body, a down conductor arranged in the shell body for conducting lightning current to ground, an electrical connector arranged in electrical connection with the down conductor, a lightning receptor element arranged at a surface of the shell body or outside the shell body, the lightning receptor element being in electrical connection with the electrical connector. A method for manufacturing a wind turbine blade with a lightning protection system is also provided. 11080580510. A wind turbine blade () comprising a shell body , a down conductor () arranged in the shell body for conducting lightning current to ground , an electrical connector () arranged in electrical connection with the down conductor , a lightning receptor element () arranged at a surface of the shell body or outside the shell body , the lightning receptor element being in electrical connection with the electrical connector.220. A wind turbine blade in accordance with claim 1 , wherein the lightning receptor element is located at a trailing edge () of the shell body.3. A wind turbine blade in accordance with claim 1 , wherein at least 30% of an external surface of the lightning receptor element consists of graphite claim 1 , and/or at least 30% by volume of an exterior portion of the lightning receptor element consists of graphite.4. A wind turbine blade in accordance with claim 1 , wherein the lightning receptor element comprises an exterior portion extending outside the shell body claim 1 , and wherein the exterior portion consists entirely of graphite.5571572. A wind turbine blade in accordance with claim 1 , wherein the shell body comprises an opening ( claim 1 , ) accommodating the electrical connector and/or the lightning receptor element claim 1 , and the blade further comprises a cover member attached to the shell body claim 1 , the cover member covering the shell body opening claim 1 , the cover member comprising:{'b': '601', 'a first cover ...

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02-01-2020 дата публикации

Method for producing a wind turbine rotor blade, and wind turbine rotor blade

Номер: US20200001562A1
Автор: Falko BÜRKNER
Принадлежит: Wobben Properties GMBH

A method of producing a wind turbine rotor blade. The wind turbine rotor blade has at least an inner blade portion and an outer blade portion, as well as a connecting element. The inner blade portion is wound on a winding form having a first and a second winding portion. The first and second winding portions are releasably fixed to each other by way of a screw connection. The second winding portion is of a conical configuration so that after winding of the inner blade portion a sleeve is produced at an end of the inner blade portion.

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03-01-2019 дата публикации

Optimization of Layup Process for Fabrication of Wind Turbine Blades using Model-based Optical Projection System

Номер: US20190001589A1
Принадлежит:

A method to design the kits and layup the reinforcement layers and core using projection system, comprising a mold having a contoured surface; a layup projection generator which: defines a plurality of mold sections; identifies the dimensions and location for a plurality of layup segments. A model-based calibration method for alignment of laser projection system is provided in which mold features are drawn digitally, incorporated into the plug(s) which form the wind turbine blade mold, and transferred into the mold. The mold also includes reflective targets which are keyed to the molded geometry wherein their position is calculated from the 3D model. This method ensures the precision level required from projection system to effectively assist with fabrication of wind turbine blades. In this method, digital location of reflectors is utilized to compensate for the mold deformations. 1. A method for fabrication of a composite structure comprising:receiving at least one specification for a composite structure design, the composite structure including a plurality of core panels;generating a manufacturing model of the composite structure design, the manufacturing model including a plurality of core panels;extracting at least one optical projection file from the manufacturing model, the optical projection file(s) having coordinates for projection of a marking(s) within a mold;identifying select reference features associated with a core panel;projecting at least one marking to depict an edge of a core panel; andcomparing core panel reference features to the projected edge of the core panel.2. The method of claim 1 , when the comparison of the core panel reference features and the projected edge of the core panel do not match claim 1 , adjusting the placement of the core panel.3. The method of claim 1 , when the comparison of the core panel reference features and the projected edge of the core panel do not match claim 1 , adjusting the manufacturing model.4. The method of ...

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03-01-2019 дата публикации

A METHOD OF MANUFACTURING A COMPOSITE LAMINATE STRUCTURE OF A WIND TURBINE BLADE PART AND RELATED WIND TURBINE BLADE PART

Номер: US20190001592A1
Принадлежит:

A method of manufacturing a composite laminate structure of a wind turbine blade part is performed by resin transfer moulding. The fibre-reinforcement material is impregnated with liquid resin in a mould cavity which includes a rigid mould part having a mould surface defining a surface of the wind turbine blade part. The method includes alternately stacking on the rigid mould part: i) a number of fibre-reinforcement layers including electrically conductive fibres and ii) a flow strip layer in form of a layer of flow strips having a strip width and which are arranged so as to form voids having a void width between two juxtaposed strips. The method includes sealing a second mould part against the rigid mould part in order to form the mould cavity, optionally evacuating the mould cavity, supplying a resin to the mould cavity, and curing the resin to form the composite laminate structure. 2. A method according to claim 1 , wherein the composite laminate structure is a load-carrying structure of the wind turbine blade claim 1 , the composite laminate structure having a longitudinal direction claim 1 , and wherein the flow strips are aligned in a desired flow direction and fibres of the fibre-reinforcement layers are aligned substantially in the longitudinal direction.3. A method according to claim 2 , wherein the load-carrying structure is a spar cap integrated in a shell of the wind turbine blade.4. A method according to claim 1 , wherein the flow strips are secured to a fibre-reinforcement layer.5. A method according to claim 1 , wherein the layers of flow strips are arranged so that flow strips of a first flow strip layer overlaps flow strips of a second flow strip layer.6. A method according to claim 1 , wherein the strip width is larger than the spacing width.7. The method according to claim 1 , wherein at least a number of flow strips are made of a bi-axial mesh.8. The method according any of the preceding claims to claim 1 , wherein at least a number of flow ...

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05-01-2017 дата публикации

RING INSERT FOR A WIND TURBINE ROTOR BLADE

Номер: US20170002660A1
Принадлежит:

The present disclosure is directed to a rotor blade assembly for a wind turbine. The rotor blade assembly includes a rotor blade having a blade root section and a rigid ring insert. The rotor blade has pressure and suction sides extending between leading and trailing edges. The blade root section includes an end face configured to attach the rotor blade assembly to a hub. Further, the blade root section includes a span-wise end portion defined by inner and outer circumferential components separated by a radial gap. The radial gap includes a first laminate material embedded between the inner and outer circumferential components at a first span-wise depth and a second laminate material embedded between the inner and outer circumferential components at a second span-wise depth. Thus, the rigid ring insert is disposed in the radial gap and embedded between the first and second laminate materials. 1. A rotor blade assembly for a wind turbine , comprising:a rotor blade having a pressure side and a suction side, the pressure side and suction side extending between a leading edge and a trailing edge;a generally cylindrical blade root section comprising an end face configured to attach the rotor blade assembly to a hub, the blade root section comprising a span-wise end portion defined by an inner circumferential component and an outer circumferential component, the inner and outer circumferential components separated by a radial gap, the radial gap comprising a first laminate material embedded between the inner and outer circumferential components at a first span-wise depth and a second laminate material embedded between the inner and outer circumferential components at a second span-wise depth; and,a rigid ring insert disposed in the radial gap and embedded between the first and second laminate materials.2. The rotor blade assembly of claim 1 , wherein the ring insert further comprises one or more bolt holes configured to receive one or more blade bolts claim 1 , the one or ...

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05-01-2017 дата публикации

CORRUGATED PRE-CURED LAMINATE PLATES FOR USE WITHIN WIND TURBINE ROTOR BLADES

Номер: US20170002792A1
Принадлежит:

A pre-cured laminate plate for use within a component of a wind turbine rotor blade may generally include a plate body extending in a thickness direction between a first side and a second side and in a widthwise direction between a first end and a second end. The plate body may define a plate thickness between the first and second sides. The pre-cured laminate plate may also include a plurality of channels formed in the plate body between the first and second ends. Each channel may extend in the thickness direction between a top end that is open along the first side of the plate body and a bottom end that terminates at a location between the first and second sides of the plate body such that the plate body defines a reduced thickness between the bottom end of each channel and the second side of the plate body. 1. A component for a wind turbine rotor blade , the component comprising: a plate body formed from a combination of fibers and resin, the plate body extending in a thickness direction between a first side and a second side and in a widthwise direction between a first end and a second end, the plate body defining a maximum plate thickness in the thickness direction between the first and second sides; and', 'a plurality of channels formed in the plate body between the first and second ends, each of the plurality of channels extending in the thickness direction between a top end that is open along the first side of the plate body and a bottom end that terminates at a location between the first and second sides of the plate body such that the plate body defines a reduced thickness between the second side of the plate body and the bottom end of each of the plurality of channels., 'an assembly of pre-cured laminate plates, each pre-cured laminate plate comprising2. The component of claim 1 , wherein the reduced thickness is equal to less than about 50% of the maximum plate thickness of the plate body.3. The component of claim 1 , wherein the fibers are oriented in ...

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05-01-2017 дата публикации

Windmill that Generates Exceptional Amounts of Electricity

Номер: US20170002794A1
Автор: Williams Darell Allen
Принадлежит:

A windmill for generating electricity is described, which contains several improvements that enable the blades of the windmill to be much wider than conventional electricity-generating windmill blades. The rotor containing the blades will also change direction to capture the largest amount of wind energy available. The windmill includes a “shroud” surrounding the blades, which increases the wind velocity through the blades. Support structures for the windmill are described, and also a method of using the windmill to store electricity to use later is shown. The windmill is more stable than conventional windmills. A method of using a windmill to generate electricity is also described. 1. A machine for generating electricity comprising the following components;{'b': 11', '26, 'a pedestal (); a pedestal base ();'}{'b': 25', '26, 'one or more primary generators () located in or below said pedestal base ();'}{'b': '25', 'said primary generators () being capable of generating electricity;'}{'b': 80', '26, 'one or more direction control motors () located in or below said pedestal base ();'}{'b': 110', '26, 'a lower bearing () located in or below said pedestal base ();'}{'b': '16', 'a windmill ();'}{'b': '81', 'one or more bearings ();'}{'b': 72', '11, 'one or more lower pedestal support poles () that rest on the ground and provide structural support to said pedestal ();'}{'b': 81', '11', '11, 'said bearing () being on top of said pedestal () and permitting said pedestal () to rotate;'}{'b': 16', '11', '53', '52', '53', '61, 'said windmill () comprising said pedestal (); and also comprising a main turbine shaft (); which contains a turbine; said main turbine shaft further comprising a turbine shaft back end (); and a turbine shaft crown (); and a turbine shaft front end ();'}{'b': 76', '11', '53, 'an intersection node () where said pedestal () intersects with said main turbine shaft ();'}{'b': 16', '55', '53', '54', '76', '55', '55', '15, 'and said windmill () also further ...

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05-01-2017 дата публикации

PITCH ASSEMBLY FOR A WIND TURBINE ROTOR BLADE

Номер: US20170002795A1
Принадлежит:

The present disclosure is directed to a pitch assembly for coupling a rotor blade to a hub of a wind turbine. In one embodiment, the pitch assembly includes a first pitch bearing having a first outer race and a first inner race rotatable relative to the first outer race via a first set of rolling elements, a second pitch bearing having a second outer race and a second inner race rotatable relative to the second outer race via a second set of rolling elements, and at least one spacer configured axially between and contacting the first and second pitch bearings. Further, at least a portion of the first pitch bearing and at least a portion of the second pitch bearing are axially aligned between the rotatable hub and the rotor blade in a generally span-wise direction. 1. A rotor blade assembly for a wind turbine , comprising;a rotatable hub; a first pitch bearing having a first outer race and a first inner race rotatable relative to the first outer race via a first set of rolling elements,', 'a second pitch bearing having a second outer race and a second inner race rotatable relative to the second outer race via a second set of rolling elements, and', 'at least one spacer configured axially between and contacting the first and second pitch bearings., 'at least one rotor blade configured with the rotatable hub; and, a pitch assembly coupling the rotor blade to the hub, comprising2. The rotor blade assembly of claim 1 , wherein at least a portion of the first pitch bearing and at least a portion of the second pitch bearing are axially aligned between the rotatable hub and the rotor blade in a generally span-wise direction.3. The rotor blade assembly of claim 1 , wherein the first and second pitch bearings define an overall height of the pitch assembly claim 1 , the first and second sets of rolling elements being separated by a predetermined distance claim 1 , wherein a ratio of the predetermined distance to the overall height is at least about 0.5.4. The rotor blade ...

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05-01-2017 дата публикации

Anti-oscillation apparatus and method for securing wind turbine blades against oscillations

Номер: US20170002797A1
Принадлежит: Vestas Wind Systems AS

A tool for reducing vibrations in wind turbine blades at standstill includes an elongate sleeve formed of a net-like material for fitting over the blades, wherein the sleeve is formed with at least one protruding structure extending along at least a part of the length of the sleeve having an undulating form, and which is arranged so that when the sleeve is fitted on a blade the protruding structure or structures lie at the leading and/or trailing edge of the blade. A method for securing wind turbine blades against oscillations is also disclosed.

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01-01-2015 дата публикации

MODULAR EXTENSIONS FOR WIND TURBINE ROTOR BLADES

Номер: US20150003991A1
Принадлежит: GENERAL ELECTRIC COMPANY

Rotor blades include an inner portion and a modular extension attached to the inner portion that form a new span length for the rotor blade. The modular extension includes one or more spanwise support elements connecting to the inner portion and extending in a spanwise direction, a plurality of cross-sectional ribs disposed along a length of the one or more spanwise support elements, and, a modular extension shell surrounding the modular extension supported by the plurality of cross-sectional ribs. 1. A rotor blade for a wind turbine , the rotor blade comprising:an inner portion; and, one or more spanwise support elements connecting to the inner portion and extending in a spanwise direction;', 'a plurality of cross-sectional ribs disposed along a length of the one or more spanwise support elements; and,', 'a modular extension shell surrounding the modular extension supported by the plurality of cross-sectional ribs., 'a modular extension attached to the inner portion to form a span length for the rotor blade, the modular extension comprising2. The rotor blade of claim 1 , wherein the one or more spanwise support elements comprise a plurality of spanwise support elements.3. The rotor blade of claim 2 , wherein the plurality of cross-sectional ribs cause the plurality of spanwise support elements to reposition from a substantially linear profile to an aerodynamic profile.4. The rotor blade of claim 2 , wherein the plurality of spanwise support elements connect to an internal support structure of the inner portion.5. The rotor blade of claim 2 , wherein the length of the plurality of spanwise support elements is customized for the rotor blade.6. The rotor blade of claim 2 , wherein the plurality of spanwise support elements are distributed around at least a portion of an outer circumference of the modular extension.7. The rotor blade of claim 1 , wherein the plurality of cross-sectional ribs comprise receiving slots shaped to receive a cross-section of the one or more ...

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01-01-2015 дата публикации

WIND TURBINE BLADE

Номер: US20150003998A1
Принадлежит:

A wind turbine blade having an elongated blade body extending along a longitudinal axis and having an upper skin and a lower skin, the lower skin spaced from the upper skin in a thickness direction of the blade body, the upper skin and/or lower skin having a laminated layer, the laminated layer having an outer layer wherein the outer layer forms part of the upper and/or lower skin respectively, an inner layer spaced from the outer layer in the thickness direction; and an intermediate layer sandwiched between the outer layer and inner layer, the intermediate layer having a plurality of openings extending through the intermediate layer from the inner layer to the outer layer; and a plurality of corresponding heat conductor elements extending through the plurality of openings from the inner layer to the outer layer for transferring heat from the inner layer to the outer layer. 1. A wind turbine blade comprising:an elongated blade body extending along a longitudinal axis and having a blade root at one longitudinal end of the blade body and a blade tip at another longitudinal end of the blade body;a leading edge and a trailing edge, both extending from the blade root to the blade tip, the trailing edge spaced from the leading edge in a span-wise direction of the blade body; an outer layer wherein the outer layer forms part of the upper and/or lower skin respectively;', 'an inner layer spaced from the outer layer in the thickness direction of the blade body; and', a plurality of openings extending through the intermediate layer from the inner layer to the outer layer; and', 'a plurality of corresponding heat conductor elements extending through the plurality of openings from the inner layer to the outer layer for transferring heat from the inner layer to the outer layer., 'an intermediate layer sandwiched between the outer layer and inner layer, the intermediate layer having'}], 'a laminated layer extending from the blade root towards the blade tip and at least adjacent ...

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07-01-2016 дата публикации

MOUNTING RING ARRANGEMENT

Номер: US20160003215A1
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A mounting ring arrangement adapted for alignment of root bushings in a rotor blade root end during a rotor blade assembly step includes a mounting ring segment; and a partial mounting ring, which partial mounting ring is a closed annular component and includes a recess dimensioned to accommodate the mounting ring segment. A method of manufacturing a rotor blade, includes (A) arranging a fibre layup in a first blade mould and arranging a fibre layup in a second blade mould; (B) arranging the partial mounting ring of a mounting ring arrangement in the first blade mould and arranging the mounting ring segment of the mounting ring arrangement in the second blade mould; and (C) joining the first and second blade moulds such that the partial mounting ring and the mounting ring segment join to form a full mounting ring. 1. A mounting ring arrangement adapted for the alignment of root bushings in a wind turbine rotor blade root end during a rotor blade assembly step , the mounting ring arrangement comprisinga mounting ring segment; anda partial mounting ring, which partial mounting ring is realised as a closed annular ring and comprises a recess dimensioned to accommodate in the mounting ring segment.2. The mounting ring arrangement according to claim 1 ,wherein the mounting ring segment extends over an angular range of at least 90°.3. The mounting ring arrangement according to claim 1 , further comprisinga connection for connecting the mounting ring segment to the partial mounting ring to complete a full mounting ring.4. The mounting ring arrangement according to claim 3 ,wherein the connection comprises a first guide formed in the partial mounting ring and a corresponding second guide formed in the mounting ring segment, wherein the second guide is arranged to align with the first guide.5. The mounting ring arrangement according to claim 3 ,wherein the connection comprises a guide bolt for aligning the mounting ring segment to the partial mounting ring.6. The mounting ...

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07-01-2016 дата публикации

Rotor blade of a wind turbine

Номер: US20160003223A1
Автор: Manfred Barth
Принадлежит: Eichenauer Heizelemente GmbH and Co KG

The invention relates to a rotor blade for a wind turbine. The rotor blade includes at least one fan ( 3 ) for generating an airflow in the rotor blade and at least one heating device ( 6 ) for heating at least one part of the airflow. The heating device ( 6 ) has at least one heating module ( 15 ).

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04-01-2018 дата публикации

Morphing segmented wind turbine and related method

Номер: US20180003151A1

A downwind morphing rotor that exhibits bending loads that will be reduced by aligning the rotor blades with the composite forces. This reduces the net loads on the blades which therefore allow for a reduced blade mass for a given maximum stress. The downwind morphing varies the amount of downstream deflection as a function of wind speed, where the rotor blades are generally fully-aligned to non-azimuthal forces for wind speeds between rated and cut-out conditions, while only the outer segments of the blades are generally aligned between cut-in and rated wind speeds. This alignment for large (MW-scale) rated turbines results in much larger downstream deflections of the blades at high wind speeds as compared to that of a conventional rigid single-piece upwind turbine blade. Also provided is a pre-aligned configuration rotor whereby the rotor geometry and orientation does not change with wind speed, and instead is fixed at a constant downwind deflection consistent with alignment at or near the rated wind speed conditions. Also provided is a twist morphing rotor where the airfoil-shapes around the spars twist relative to the wind due to aerodynamic forces so as to unload the rotors when there is a gust. This can help reduce unsteady stresses on the blade and therefore may allow for reduced blade mass and cost. The twist morphing rotor may be combined with either downwind morphing rotor or pre-alignment rotor.

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02-01-2020 дата публикации

AERODYNAMIC STRUCTURE

Номер: US20200003177A1
Автор: Oerlemans Stefan
Принадлежит:

Provided is an aerodynamic structure for mounting to a surface of a wind turbine rotor blade, which aerodynamic structure includes a number of comb elements, a comb element including comb teeth arranged in a comb plane, wherein the comb plane of a mounted comb element is essentially perpendicular to the trailing edge of the rotor blade and to the airfoil surface of the rotor blade. A wind turbine rotor blade including at least one such aerodynamic structure, and a method of equipping a wind turbine rotor blade with such an aerodynamic structure, is also provided. 1. An aerodynamic structure for mounting to a surface of a rotor blade of a widn turbine , comprising:a number of comb elements, each comb element comprising comb teeth arranged in a comb plane;wherein the comb plane of a mounted comb element is essentially perpendicular to a trailing edge of the rotor blade and to an airfoil surface of the rotor blade.2. The aerodynamic structure according to claim 1 , wherein the comb teeth of a comb element terminate along a terminating line claim 1 , which terminating line extends in a direction that is essentially perpendicular to the mounting surface.3. The aerodynamic structure according to claim 1 , wherein a comb element is arranged on a mounting means claim 1 , the mounting means configured for mounting the comb element to the airfoil surface of the rotor blade.4. The aerodynamic structure according to claim 3 , wherein the comb elements are arranged at intervals of 0.5 cm to 5 cm.5. The aerodynamic structure according to claim 1 , wherein a comb element is arranged on a mounting means claim 1 , the mounting means configured for mounting the comb element onto a serration of a serrated trailing edge assembly of the rotor blade.6. The aerodynamic structure according to claim 1 , wherein the comb teeth of a comb element originate along a mounting line claim 1 , the mounting line extending in a direction that is essentially perpendicular to the trailing edge of the ...

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02-01-2020 дата публикации

Aerodynamic structure

Номер: US20200003178A1
Автор: Stefan Oerlemans
Принадлежит: Siemens Gamesa Renewable Energy AS

Provided is an aerodynamic structure for mounting to a surface of a wind turbine rotor blade, which aerodynamic structure includes a plurality of rectangular comb elements and/or a plurality of angular comb elements, wherein a comb element includes comb teeth arranged in a comb plane that subtends an angle to the surface of the rotor blade. The embodiments further describe a wind turbine rotor blade including such an aerodynamic structure.

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02-01-2020 дата публикации

TURBINE BLADE

Номер: US20200003180A1
Автор: Al-Rubb Khalil Abu
Принадлежит:

Embodiments of the invention relate to blades for turbines, such as wind turbines, including a structural frame with a sail mounted on the frame. In certain embodiments, a portion of the frame contributes to the buoyancy of the blade. In further embodiments, the frame includes strengthening cords. In further embodiments, the frame includes a reinforced tip. In further embodiments, the blade has a tip arranged to articulate relative to a body portion to alter the aerodynamic profile of the blade as the blade rotates to assist up-strokes of the blade. 1. A blade arrangement comprising:a plurality of blades for a turbine, the blades each including a structural frame and a sail mounted on the structural frame, the structural frame including a body portion, a tip and a hinge connecting the tip to the body portion, the hinge defining a hinge axis in a plane of the blade and inclined with respect to a longitudinal axis of the blade, wherein the tip is rotatable relative to the body portion to vary the aerodynamic properties of the blade, wherein the plurality of blades are arranged to rotate about an axis;a sensor for determining a rotational position of a selected one of said blades relative to the axis and, in dependence on said position, rotating the tip of the selected blade relative to the body portion of the selected blade;further comprising an actuator for moving the tip relative to the body portion, wherein the actuator comprises a motor and pulley system; and,wherein the motor and pulley system controls the tension of corresponding cords, by which the motor and pulley system cause the tip to articulate relative to the body portion.2. The blade arrangement according to wherein the blade arrangement further comprises a sensor for determining a rotational position of a selected one of said blades relative to the axis and claim 1 , in dependence on said position claim 1 , moving the tip of the selected blade relative to the body portion of the selected blade claim 1 , ...

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07-01-2021 дата публикации

LIGHTNING DISCHARGE SYSTEM FOR A WIND TURBINE

Номер: US20210003115A1
Принадлежит:

Provide is a lightning discharge system for a wind turbine including a hub, a spinner defining a protection space wherein the hub is arranged, a blade fixed to the hub, and a nacelle. The discharge system includes a blade band attached to the blade, a ring facing the nacelle and attached to the band and to the nacelle, a respective contact device connecting the band to the ring and the ring to the nacelle. The band and the ring are arranged in the space, and the ring is further attached to the hub such that it faces the nacelle through a rear opening of the spinner. 1. A lightning discharge system for a wind turbine blade , including a wind turbine comprising a hub , a spinner defining an inner protection space wherein the hub is arranged , a blade fixed to the hub , and a nacelle connected to a reference point , the lightning discharge system comprising:a blade band of an electric conductor material, which is attached to the blade;a ring of an electric conductor material, which faces the nacelle, which is electrically attached to the blade band and to the nacelle and which comprises a central shaft, a first contact device electrically connecting the blade band to the ring, and a second contact device electrically connecting the ring to the nacelle,wherein the spinner comprises a rear opening facing the nacelle and through which the protection space faces the nacelle, the blade band and the ring being arranged in the protection space defined by the spinner, and the ring further being attached to the hub such that the ring faces the nacelle through the rear opening of the spinner.2. The lightning discharge system according to claim 1 , further comprising an attachment device for attaching the ring to the hub claim 1 , the attachment device being configured to provide an electrical insulation between the ring and the hub.3. The lightning discharge system according to claim 2 , wherein the attachment device for attaching the ring to the hub comprises a plurality of ...

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03-01-2019 дата публикации

VORTEX GENERATOR AND WIND TURBINE BLADE ASSEMBLY

Номер: US20190003451A1
Автор: HARADA Motoshi
Принадлежит:

A vortex generator for a wind turbine blade includes at least one fin including a suction surface and a pressure surface. Each of the at least one fin is configured such that, in at least a part of a height range of the fin, a maximum camber ratio cmax/C being a ratio of a maximum camber cmax to a fin chord length C decreases with distance from a root of the fin toward a tip portion of the fin. 1. A vortex generator for a wind turbine blade , comprising:at least one fin including a suction surface and a pressure surface,wherein each of the at least one fin is configured such that, in at least a part of a height range of the fin, a maximum camber ratio cmax/C being a ratio of a maximum camber cmax to a fin chord length C decreases with distance from a root of the fin toward a tip portion of the fin.2. The vortex generator according to claim 1 ,wherein each of the at least one fin is configured such that, provided that H is a height of the fin, in at least a part of the height range of not less than 0.5 H, the maximum camber ratio cmax/C monotonically decreases with distance from the root toward the tip portion.3. The vortex generator according to claim 1 ,wherein, provided that H is a height of the fin and h is a position coordinate with respect to a height direction of the fin, a height position at which a change rate of the maximum camber ratio cmax/C with respect to h is at maximum is within the height range of not less than 0.7 H and not more than 0.9 H.4. The vortex generator according to claim 1 ,wherein the fin is configured such that an angle of a fin chord with reference to a wind inflow direction is not less than 12 degrees and not more than 18 degrees.5. The vortex generator according to claim 1 ,wherein the fin is configured such that L/H satisfies 2.0≤L/H≤4.0, provided that L/H is a ratio of a chord length L of a fin root to a height H of the fin.6. The vortex generator according to claim 1 ,wherein the pressure surface of the fin is formed by a flat ...

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03-01-2019 дата публикации

WIND TURBINE BLADES AND POTENTIAL EQUALIZATION SYSTEMS

Номер: US20190003462A1
Принадлежит:

A wind turbine blade, extending longitudinally root end to tip end, having a load carrying structure, a shell body and a lightning protection system is described. The load carrying structure is fiber-reinforced polymer in a plurality of stacked layers comprising electrically conductive fibers. The lightning protection system comprises a lightning receptor arranged freely accessible in or on the shell body and a lightning down-conductor electrically connected to the lightning receptor and is configured to be electrically connected to a ground connection. The blade further comprises a potential equalisation system providing a potential equalising connection between a number of the electrically conductive fibers of the load carrying structure and the lightning protection system. The system comprises a dissipating element made of an electrically conductive material which in turn comprises at least one transverse connector arranged to extend transverse through a thickness of the stacked fiber layers and configured to dissipate. 1. A wind turbine blade comprising a load carrying structure made of a fibre-reinforced polymer material , wherein the load carrying structure comprises a plurality of stacked fibre mats in a thickness of the load carrying structure , wherein a plurality of said stacked fibre mats are made of hybrid material comprising both carbon fibres and glass fibres and having a carbon fibre ratio , which is defined as a volume of the carbon fibres divided by a total volume of the glass fibres and carbon fibres , characterised in thatat least a number of said stacked fibre mats have different carbon fibre ratios such that the carbon fibre ratio of fibre material varies through the thickness of the load carrying structure.2. A wind turbine blade according to claim 1 , wherein the stacked fibre mats comprise in a cross section a number of first fibre mats having a first carbon fibre ratio and a number of second fibre mats comprising a second carbon fibre ratio. ...

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13-01-2022 дата публикации

Wind turbine jointed rotor blade having a hollow chord-wise extending pin

Номер: US20220010767A1
Принадлежит: General Electric Co

A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface and an internal support structure. The first blade segment includes a beam structure extending lengthwise that structurally connects with the second blade segment via a receiving section. The rotor blade also includes at least one chord-wise extending pin positioned through the chord-wise joint so as to secure the first and second blade segments together. Further, the chord-wise extending pin includes a hollow cross-section that extends from a trailing edge end to a leading edge end thereof.

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20-01-2022 дата публикации

METHOD FOR MANUFACTURING A HOLLOW COMPOSITE STRUCTURE, PARTICULARLY A SPAR BEAM FOR A WIND TURBINE ROTOR BLADE, AND AN ASSOCIATED MANDREL

Номер: US20220016808A1
Принадлежит:

A method for producing a hollow composite structure, such as a spar beam for use in a wind turbine blade, includes placing fiber reinforcement material around a mandrel within a mold, and curing the fiber reinforcement material. The mandrel is formed from a compressible material having a rigid neutral state with a rigidity to maintain a defined shape of the mandrel during lay up and curing of the fiber reinforcement material. Subsequent to curing, a vacuum is drawn on the mandrel to compress the compressible material so that the compressed mandrel can be drawn out through an opening in the composite structure, the opening having a size such that the mandrel could not be withdrawn through the opening in the rigid neutral state of the mandrel. 1. A method for producing a hollow composite structure , comprising:placing fiber reinforcement material around a mandrel within a mold;maintaining a rigid neutral state of the mandrel within the mold, the mandrel comprising a compressible material in the rigid neutral state with a defined shape corresponding to a desired shape of the composite structure and a rigidity in the rigid neutral state to maintain the defined shape during lay up and curing of the fiber reinforcement material;curing the fiber reinforcement material with a resin;subsequent to curing, drawing a vacuum on the mandrel to compress the compressible material; andwithdrawing the compressed mandrel through an opening in the composite structure, the opening having a size such that the mandrel could not be withdrawn through the opening in the rigid neutral state of the mandrel.2. The method as in claim 1 , wherein the composite structure is a tapered box-beam structure having a larger closed end and a smaller open end through which the compressed mandrel is withdrawn.3. The method as in claim 2 , wherein the box-beam structure is a spar structure for use in a wind turbine rotor blade.4. The method as in claim 1 , wherein the compressible material comprises a solid ...

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20-01-2022 дата публикации

Rotor blade of a wind turbine, comprising an insulator layer and a protective layer

Номер: US20220018328A1
Автор: Urs Bendel

The invention relates to a rotor blade of a wind turbine, comprising at least one girder (2), at least one protective layer (4) which is arranged on the at least one girder (2) on the rotor blade outer side, wherein the at least one protective layer (4) is designed to be electrically conductive and connected to a lightning conductor (16), wherein at least one electrically insulating insulator layer (3) which is arranged between the at least one protective layer (4) and the at least one girder (2).

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04-01-2018 дата публикации

Method for Making Static-Dissipative Composite Structure with Exposed Conductive Fiber

Номер: US20180007767A1

Provided is a method for making a composite structure with exposed conductive fibers. The exposed conductive fibers can be used for static dissipation. In the present method, a liquid, gum, gel, or impermeable film mask is applied to the conductive fiber material. The mask functions to prevent infiltration of curable liquid resin into the conductive fiber material. The masked conductive fiber material is incorporated into the composite structure, along with structural fiber material. The liquid resin is cured. The mask material and cured resin are removed from the masked areas, thereby exposing the conductive fiber material. The exposed conductive fiber material can collect and drain electrostatic charges. The present method can be used to make storage tanks and other objects that require electrostatic charge dissipation.

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08-01-2015 дата публикации

SYSTEM AND METHOD FOR MANUFACTURING A WIND TURBINE BLADE

Номер: US20150010405A1
Принадлежит:

A manufacturing method for a wind turbine blade is described which utilises a post-moulding station in the manufacturing process. A blade shell forming part of a wind turbine blade is initially moulded in a blade mould, the blade shell subsequently transferred to a post-moulding station which allows for various post-moulding operations to be carried out on the blade shell away from the mould, thereby increasing the productivity of the blade mould in the manufacturing process. The post-moulding station may be operable to perform the closing of first and second blade shells to form a wind turbine blade, and may be formed from an adjustable structure which can provide relatively easy access to the contained blade shell for working thereon. Accordingly, the manufacturing equipment may be of reduced cost, combined with an increase in the overall productivity of the manufacturing system. 1. A method of manufacturing a wind turbine blade of at least 40 metres in length , the method comprising the steps of:curing at least a section of a first wind turbine blade shell in a first blade mould;curing at least a section of a second wind turbine blade shell in a second blade mould;transferring said first and second cured blade shells from said first and second blade moulds to a post-moulding station comprising at least one blade cradle to receive a cured blade shell, wherein said step of transferring comprises transferring said first cured blade shell to a first blade cradle and transferring said second cured blade shell to a second blade cradle;closing said first and second cured blade shells to form a closed wind turbine blade shell, andbonding said first and second cured blade shells in said closed wind turbine blade shell to form a wind turbine blade.2. The method of claim 1 , wherein at least one of said first or second wind turbine blade shells forms an upwind blade shell or a downwind blade shell.3. The method of claim 1 , wherein the method comprises the step of turning ...

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14-01-2016 дата публикации

BLADE PITCHING

Номер: US20160010625A1
Принадлежит:

A blade pitch system for a wind turbine comprising a motor coupled to a central reduction gearing, wherein a rotatable output of the central reduction gearing is fixed to a mobile link that in use is joined to the blade and allows rotation of the blade around its longitudinal axis and a static part of the central reduction gearing or the motor is fixed to a static link that in use is joined to a wind turbine hub, wherein the system further comprises one or more flexible couplings to couple the central reduction gearing or the motor and the static or the mobile link such that torque about a blade longitudinal axis is transmitted between the blade and the reduction gearing while substantially limiting the transmission of other loads. 1. A blade pitch system for a wind turbine , comprising:a motor coupled to a central reduction gearing, whereina rotatable output of the central reduction gearing is fixed to a mobile link that in use is joined to a blade and allows rotation of the blade around a longitudinal axis of the blade, anda static part of the central reduction gearing or the motor is fixed to a static link that in use is joined to a wind turbine hub, whereinthe system further comprises one or more flexible couplings configured to couple the central reduction gearing and/or the motor to the static link or the mobile link such that a torque about the blade longitudinal axis is transmitted between the blade and the reduction gearing while substantially limiting the transmission of other loads.2. A blade pitch system according to claim 1 , wherein the flexible coupling directly connects the central reduction gearing or the motor to the static link or the mobile link.3. A blade pitch system according to claim 1 , wherein the flexible coupling is provided between the rotatable output of the central reduction gearing and the mobile link.4. A blade pitch system according to claim 1 , wherein the flexible coupling is provided between the static part of the central ...

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11-01-2018 дата публикации

WIND TURBINE ROTOR BLADE WITH VORTEX GENERATORS

Номер: US20180010579A1
Принадлежит:

A rotor blade of a wind turbine including at least one vortex generator is provided. The vortex generator is attached to the surface of the rotor blade and is located at least partially within the boundary layer of the airflow flowing across the rotor blade. The vortex generator is exposed to a stagnation pressure, which is caused by the fraction of the airflow passing over the vortex generator and of which the magnitude depends on the velocity of the fraction of the airflow passing over the vortex generator. The vortex generator is arranged and prepared to change its configuration depending on the magnitude of the stagnation pressure acting on the vortex generator. Furthermore, an aspect relates to a wind turbine for generating electricity with at least one such rotor blade. 1. A rotor blade of a wind turbine comprising at least one vortex generator , wherein the vortex generator is attached to the surface of the rotor blade , the vortex generator is located at least partially within the boundary layer of the airflow flowing across the rotor blade , the vortex generator is exposed to a stagnation pressure , which is caused by the fraction of the airflow passing over the vortex generator and of which the magnitude depends on the velocity of the fraction of the airflow passing over the vortex generator , wherein the vortex generator is arranged and prepared to change its configuration depending on the magnitude of the stagnation pressure acting on the vortex generator , such that , with increasing stagnation pressure in the boundary layer , the ability of the vortex generator to generate vortices decreases.2. The rotor blade according to claim 1 , wherein the vortex generator is situated in the outboard half claim 1 , in particular in the outboard third claim 1 , of the rotor blade.3. The rotor blade according to claim 1 , wherein the vortex generator comprises an inflatable element claim 1 , such as a hose or a pressure chamber.4. The rotor blade according to claim ...

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11-01-2018 дата публикации

Wind Turbine with Lightning Protection System

Номер: US20180010583A1
Принадлежит:

The present invention relates to a wind turbine comprising a lightning protection system comprising a waveguide interconnecting a communication device and a signal-carrying structure. In other aspects, the present invention relates to the use of a waveguide in a lightning protection system of a wind turbine, a power splitter and its use in a lightning protection system of a wind turbine. 2. A wind turbine according to claim 1 , wherein the signal-carrying structure comprises one or more signal-carrying coaxial cables claim 1 , each coaxial cable comprising a centre conductor surrounded by a first tubular insulating layer enclosed by a tubular shield conductor.3. A wind turbine according to claim 2 , wherein one or more of the signal-carrying coaxial cables is at least over part of its length integrated into a three-conductor cable comprising a second tubular insulating layer surrounding the tubular shield conductor claim 2 , the second tubular insulating layer being surrounded by at least part of the lightning down conductor.4. A wind turbine according to claim 1 , wherein the signal-carrying structure comprises at least one power splitter for splitting and transferring radio frequency power claim 1 , the power splitter comprising one input port and at least two output ports claim 1 , each port being adapted to connectively receive a signal-carrying cable claim 1 , wherein the input port is connected to each of the output ports such that a radio frequency signal received at the input port is split to the output ports.5. A wind turbine according to claim 4 , wherein the power splitter comprises a conductive housing connected to the input port to enable a direct current short circuit of the housing and the input port.6. A wind turbine according to claim 4 , wherein the signal-carrying structure is short-circuited with the lightning down conductor at the power splitter.7. A wind turbine according to claim 4 , wherein the input port and at least one of the output ports ...

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10-01-2019 дата публикации

WIND TURBINE BLADES AND RELATED METHODS OF MANUFACTURING

Номер: US20190010919A1
Принадлежит:

The present disclosure relates to a wind turbine blade. The wind turbine blade comprises a load carrying structure made of a fibre-reinforced polymer material. The load carrying structure comprises a plurality of stacked fibre layers or fibre mats in a thickness of the load carrying structure. The plurality of said stacked fibre layers or fibre mats are made of hybrid material comprising both carbon fibres and glass fibres and having a carbon fibre ratio. The carbon fibre ratio is defined as a volume of the carbon fibres divided by a total volume of the glass fibres and carbon fibres. At least a number of said stacked fibre layers or fibre mats have different carbon fibre ratios such that the carbon fibre ratio of fibre material varies through the thickness of the load carrying structure. 1. A wind turbine blade comprising a load carrying structure made of a fibre-reinforced polymer material , wherein the load carrying structure comprises a plurality of stacked fibre mats in a thickness of the load carrying structure ,wherein a plurality of said stacked fibre mats are made of hybrid material comprising both carbon fibres and glass fibres and having a carbon fibre ratio, which is defined as a volume of the carbon fibres divided by a total volume of the glass fibres and carbon fibres, 'at least a number of said stacked fibre mats have different carbon fibre ratios such that the carbon fibre ratio of fibre material varies through the thickness of the load carrying structure.', 'characterised in that'}2. A wind turbine blade according to claim 1 , wherein the stacked fibre mats comprise in a cross section a number of first fibre mats having a first carbon fibre ratio and a number of second fibre mats comprising a second carbon fibre ratio.3. A wind turbine blade according to claim 1 , wherein the first carbon fibre ratio and the second carbon fibre ratio differs with at least 10%.4. A wind turbine blade according to claim 1 , wherein at least a number of the stacked ...

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09-01-2020 дата публикации

PRESSURE SUPPLY SYSTEM FOR A PNEUMATICALLY ACTIVATABLE AERODYNAMIC DEVICE OF A ROTOR BLADE OF A WIND TURBINE

Номер: US20200011290A1
Принадлежит:

A wind turbine with a rotor blade, wherein the rotor blade includes a pneumatically activatable aerodynamic device and the wind turbine includes a pressure supply system for controlling the activatable aerodynamic device is provided. The pressure supply system includes a pressurized air supply system, a pressurized air transmission system with pressure lines for transmitting the supplied pressurized air from the pressurized air supply system to the aerodynamic device, and at least one pneumatic actuator for activating the aerodynamic device. 1. A wind turbine with a rotor blade , wherein the rotor blade comprises a pneumatically activatable aerodynamic device and the wind turbine comprises a pressure supply system for controlling the pneumatically activatable aerodynamic device wherein the pressure supply system includes a pressurized air supply system , a pressurized air transmission system with pressure lines for transmitting the supplied pressurized air from the pressurized air supply system to the aerodynamic device , and at least one pneumatic actuator for activating the aerodynamic device.2. The wind turbine according to claim 1 , wherein the wind turbine comprises a plurality of rotor blades claim 1 , three rotor blades claim 1 , and the wind turbine comprises one common pressurized air supply system for all rotor blades.3. The wind turbine according to claim 2 , wherein the one common pressurized air supply system is located in the hub of the wind turbine.4. The wind turbine according to claim 2 , wherein the individual rotor blades can be controlled independently from each other by separately controlled individual valves which control the transmission of the pressurized air from the common pressurized air supply system to the respective actuators of the individual rotor blades.5. Wind turbine according to claim 1 , wherein the wind turbine comprises a plurality of rotor blades claim 1 , three rotor blades claim 1 , and the wind turbine comprises individual ...

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09-01-2020 дата публикации

WIND TUBINE BLADE WITH VARIABLE DEFLECTION-DEPENDENT STIFFNESS

Номер: US20200011291A1
Принадлежит:

A wind turbine blade having a structural member is provided including: a first stringer; a second stringer; a rigid tie pivotally secured to the first stringer and pivotally secured to the second stringer; and a tension tie secured to the first stringer and the second stringer and arranged to experience tension during increasing lateral displacement between the first stringer and the second stringer as the wind turbine blade bends in a first direction. Unlike a conventional wind turbine blade truss, the structural member provides nonlinear resistance to bending of the blade. 1. A wind turbine blade comprising:a first stringer;a second stringer;a rigid tie pivotally secured to the first stringer and pivotally secured to the second stringer; anda tension tie secured to the first stringer and the second stringer and arranged to experience tension during increasing lateral displacement between the first stringer and the second stringer as the wind turbine blade bends in a first direction.2. The wind turbine blade of claim 1 , further comprising a second tension tie secured to the first stringer and to the second stringer and arranged to experience tension during increasing lateral displacement between the first stringer and the second stringer when the wind turbine blade bends in a second direction that is opposite the first direction.3. The wind turbine blade of claim 1 , wherein the tension tie is configured to transition from being untensioned to being in tension during the increasing lateral displacement.4. The wind turbine blade of claim 1 , wherein the tension tie is configured to be in tension prior to any lateral displacement.5. The wind turbine blade of claim 1 , wherein the tension tie comprises a damper that damps the increasing lateral displacement claim 1 , and a travel stop that stops the increasing lateral displacement after a threshold amount of lateral displacement.6. The wind turbine blade of claim 1 , further comprising a first spar cap comprising the ...

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09-01-2020 дата публикации

SAFETY SYSTEM FOR AN AERODYNAMIC DEVICE OF A WIND TURBINE ROTOR BLADE

Номер: US20200011292A1
Принадлежит:

A rotor blade of a wind turbine including an aerodynamic device which can be actuated pneumatically by the use of a pressure supply system is provided. The pressure supply system includes a pressurized air supply system, a pressurized air transmission system with pressure lines for transmitting the supplied pressurized air from the pressurized air supply system to the aerodynamic device, at least one pneumatic actuator for activating the aerodynamic device, and a safety system to protect the rotor blade from damages caused by overpressure in the pressurized air transmission system and/or the actuator. The safety system includes means for discharging pressurized air from the pressurized air transmission system and/or the actuator. Also provided is a wind turbine for generating electricity including at least one such rotor blade. 1. A rotor blade of a wind turbine comprising:an aerodynamic device which can be actuated pneumatically by a use of a pressure supply system, wherein the pressure supply system comprises:a pressurized air supply system;a pressurized air transmission system with pressure lines for transmitting the supplied pressurized air from the pressurized air supply system to the aerodynamic device;at least one pneumatic actuator for activating the aerodynamic device; anda safety system to protect the rotor blade from damages caused by overpressure in the pressurized air transmission system and/or the actuator, wherein the safety system comprises a means for discharging pressurized air from the pressurized air transmission system and/or the actuator.2. The rotor blade according to claim 1 , wherein the means for discharging pressurized air is actuated mechanically.3. The rotor blade according to claim 1 , wherein the means for discharging pressurized air is actuated electrically by a solenoid valve.4. The rotor blade according to claim 1 , wherein the means for discharging pressurized air is actuated pneumatically.5. The rotor blade according to claim 4 , ...

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09-01-2020 дата публикации

Wind turbine blade, wind turbine rotor, and wind turbine power generating apparatus

Номер: US20200011300A1
Принадлежит: MHI Vestas Offshore Wind AS

A wind turbine blade includes: a blade body portion; and an anti-erosion layer disposed so as to cover a surface of the blade body portion partially. A center point of the anti-erosion layer in a circumferential length direction along a blade profile in a cross section orthogonal to a blade spanwise direction is shifted toward a pressure side from a leading edge of the blade body portion, at least in a part of an extension range of the anti-erosion layer in the blade spanwise direction.

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03-02-2022 дата публикации

IMPROVEMENTS RELATING TO WIND TURBINE BLADE MANUFACTURE

Номер: US20220032562A1
Принадлежит:

A method of forming a wind turbine blade shear web flange section () by resin transfer moulding comprises providing a mould assembly () comprising a mould surface () defining a mould cavity and arranging a plurality of elongate flange elements () with the mould surface in an array () such that the flange elements are positioned one on top of another with first and second longitudinal ends () of each flange element longitudinally offset from respective first and second longitudinal ends of a neighbouring flange element so as to form a tapered portion () at each of a first and second longitudinal end of the flange section (). A The method further comprises injecting resin to the mould cavity and curing the array of flange elements in a resin matrix to form a cured flange section having a laminate construction. 1. A method of forming a wind turbine blade shear web flange section by resin transfer moulding (RTM) , the method comprising:providing a mould assembly comprising a mould surface defining a mould cavity;arranging a plurality of elongate flange elements with the mould surface in an array such that the flange elements are positioned one on top of another with first and second longitudinal ends of each flange element longitudinally offset from respective first and second longitudinal ends of a neighbouring flange element so as to form a tapered portion at each of a first and second longitudinal end of the flange section;injecting resin to the mould cavity; andcuring the array of flange elements in a resin matrix to form a cured flange section having a laminate construction.2. The method of claim 1 , wherein the flange elements are arranged on a first portion of the mould surface so as to form a base of the flange section claim 1 , and on a second portion of the mould surface claim 1 , which extends substantially away from the first portion claim 1 , so as to form an upstand of the flange section extending substantially away from the base of said flange section.3. ...

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19-01-2017 дата публикации

LEADING EDGE FLAP

Номер: US20170015407A1
Автор: Garver Theodore M.
Принадлежит:

A fluid interface device, such as an airfoil assembly, can include a device structure and at least one movable band oriented such that the band moves in a direction of fluid flow. The at least one movable band can be supported on the device structure such that an outer surface of the movable band is exposed along the device structure and is capable of movement relative thereto such that a relative velocity can be maintained between the outer surface and the device structure. The fluid interface device can also include an edge extension disposed along the leading edge of the device structure. An airplane, a wind turbine and a method are also included. 122-. (canceled)23. A method of assembling an airfoil assembly , said method comprising:providing an airfoil structure having a longitudinal length and including a first longitudinal edge, a second longitudinal edge spaced laterally from said first longitudinal edge, a first side extending longitudinally along at least a portion of said longitudinal length between said first and second longitudinal edges, and a second side extending longitudinally along at least a portion of said length between said first and second longitudinal edges and generally opposite said first side; and, providing a movable band having a width;', 'supporting said movable band on said airfoil structure such that at least a portion of said movable band is exposed along at least one of said first and second sides of said airfoil structure;', 'providing an edge extension including a third longitudinal edge;', 'positioning said edge extension along said first longitudinal edge of said airfoil structure; and,', 'securing said edge extension along said first longitudinal edge of said airfoil structure for rotational movement about a longitudinal axis extending along and internally within said airfoil structure such that the position of said edge extension is rotatable about said longitudinal axis relative to the airfoil structure with said third ...

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03-02-2022 дата публикации

IMPROVEMENTS RELATING TO WIND TURBINE BLADE MANUFACTURE

Номер: US20220034293A1
Принадлежит:

A wind turbine blade shear web comprises an elongate panel () having a first side and an opposing second side and a longitudinally extending flange () arranged along a longitudinal edge of the panel. The flange comprises a plurality of elongate flange sections () arranged along the first side of the panel and integrated therewith. Each flange section comprises a plurality of elongate flange elements arranged one on top of another and offset from one another in a longitudinal direction of the flange section () such that the offset between the flange elements defines a tapered portion at each of a first and second longitudinal end of the flange section. The tapered portions of longitudinally adjacent flange sections overlap to define at least one scarf joint between said adjacent flange sections. 1. A wind turbine blade shear web , the shear web comprising an elongate panel having a first side and an opposing second side and a longitudinally extending flange arranged along a longitudinal edge of the panel ,the flange comprising a plurality of elongate flange sections arranged along the first side of the panel and integrated therewith,each flange section comprising a plurality of elongate flange elements arranged one on top of another and offset from one another in a longitudinal direction of the flange section such that the offset between the flange elements defines a tapered portion at each of a first and second longitudinal end of the flange section,wherein the tapered portions of longitudinally adjacent flange sections overlap to define at least one scarf joint between said adjacent flange sections.2. The shear web of claim 1 , wherein the plurality of flange elements are substantially L-shaped in cross-section claim 1 , each flange element comprising a base and an upstand claim 1 , wherein the upstand extends substantially away from the base.3. The shear web of claim 1 , wherein the plurality of flange sections are substantially L-shaped in cross-section such that ...

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03-02-2022 дата публикации

LIGHTNING PROTECTION FOR A WIND TURBINE BLADE

Номер: US20220034305A1
Принадлежит:

Disclosed is a wind turbine blade comprising a first blade section and a second blade section connected to the first blade section. The wind turbine blade comprises a first down conductor for conducting lightning current to ground. The blade further comprises one or more lightning receptors at or in proximity of an external surface of the wind turbine blade. A smallest distance from a first lightning receptor of the one or more lightning receptors to an interface between the first blade section and the second blade section may be less than or equal to a chord length of a chord of the wind turbine blade at the interface between the first blade section and the second blade section. 11017154450465215343480868635351018638abaea,ba. Wind turbine blade () extending along a longitudinal axis from a root end () to a tip end () , the wind turbine blade comprising a first blade section () extending along the longitudinal axis to a first end () , and a second blade section () connected to the first blade section , the second blade section extending along the longitudinal axis from a second end () towards the tip end () , the first blade section comprising a first airfoil region () , the second blade section comprising a second airfoil region () , the wind turbine blade comprising a first down conductor () for conducting lightning current to ground , the blade further comprising one or more lightning receptors (-) at or in proximity of an external surface () of the wind turbine blade , a smallest distance () from a first lightning receptor () of the one or more lightning receptors to the first end of the first blade section being less than or equal to a chord length of a chord () of the wind turbine blade at the first end , the first lightning receptor being in electrical connection with the first down conductor.2101. Wind turbine blade according to claim 1 , wherein a smallest distance () between the first lightning receptor and the first end of the first blade section is less ...

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03-02-2022 дата публикации

Down conductor connection system, wind turbine lightning protection system, and method for arranging a down conductor connection system

Номер: US20220034306A1
Принадлежит: Polytech AS

The present invention relates to conductor connection system for a wind turbine lightning protection system adapted to protect a wind turbine blade from lightning strikes. The lightning protection system comprises a down conductor cable adapted to extend in a longitudinal direction of the wind turbine blade and arranged for connection to the root end of the wind turbine blade, and comprises a number of lightning receptors electrically connected to and distributed along the length of the down conductor cable. The down conductor connection system comprises a modular down conductor cable having a first and second down conductor cable part, and at least one down conductor connector arranged between and connected to the ends of the down conductor cable parts. The down conductor connector comprises first and second terminals, connected to an end of each down conductor part, respectively, where the first and second terminals are adapted for mutual connection.

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19-01-2017 дата публикации

Coating Composition

Номер: US20170015862A1
Принадлежит: AKZO NOBEL COATINGS INTERNATIONAL B.V.

The invention relates to coating compositions which have a low VOC (less than 250 g/l), are fast drying, and have excellent erosion resistance. These coating compositions comprise a film forming resin comprise one or more polyamine(s) containing secondary amine groups and specific aliphatic and/or aromatic esters. The coating compositions are particularly suitable for use in coating wind blades. The present invention also relates to a method of protecting a substrate against rain erosion or solid particle erosion using the coating composition, a coated wind blade or a part thereof, and the use of specific ester(s) in a polyurea-based coating composition for improving the rain erosion resistance or solid-particle erosion resistance of a coating. 2. The coating composition according to wherein the polyamine(s) containing secondary amine groups are cyclic polyamine(s) containing secondary amine groups prepared by reacting one or more cyclic polyamine(s) comprising primary amine groups with an unsaturated dialkyl ester.3. The coating composition according to wherein the polyamine(s) containing secondary amine groups is a polyaspartic ester amine.4. The coating composition according to further comprising solid particles of an amino resin based polymer claim 1 , optionally wherein the amino resin based polymer is a methyl urea based polymer.5. The coating composition according to claim 4 , characterized in that the amino resin based polymer is a crosslinked polymer.6. The coating composition according to claim 4 , characterized in that the solid particles of an amino resin based polymer are present in an amount of 1 to 25% by weight claim 4 , based on the weight of the total coating composition.7. The coating composition according to wherein the polyisocyanate resin has an isocyanate equivalent weight of between 280 g/eq to 500 g/eq.8. The coating composition according to wherein the one or more polyamine(s) comprising secondary amine groups has an amine equivalent weight ...

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19-01-2017 дата публикации

METHOD FOR ATTACHING A TOOTHED REAR EDGE TO A BLADE REAR EDGE OF A ROTOR BLADE

Номер: US20170016426A1
Автор: KUHN Marvin
Принадлежит:

A method for applying a serrated rear edge to a blade rear edge of a rotor blade of a wind turbine that has a pressure side and a suction side. The method comprises the steps: disposing the serrated rear edge, with an attaching portion, on a surface of the blade rear edge, and attaching the serrated rear edge, in the region of the attaching portion, to the rotor blade by means of adhesive, the serrated rear edge being disposed on the suction side and being additionally fixed by application of an overlapping material strip to the pressure side, and the material strip being disposed on the pressure side and on the serrated rear edge such that it overlaps a transition between the blade rear edge and the serrated rear edge, or the serrated rear edge being disposed on the pressure side and additionally fixed by application of an overlapping material strip to the suction side, and the material strip being disposed on the suction side and on the serrated rear edge such that it overlaps a transition between the blade rear edge and the serrated rear edge. 1. A method for applying a serrated rear edge to a blade rear edge of a rotor blade of a wind turbine that has a pressure side and a suction side , the method comprising the steps of:disposing the serrated rear edge, with an attaching portion, on a surface of the blade rear edge, andattaching the serrated rear edge, in a region of the attaching portion, to the rotor blade by means of adhesive, the serrated rear edge being is disposed on the suction side and fixed by application of an overlapping material strip to the pressure side, wherein the material strip is disposed on the pressure side and on the serrated rear edge such that the material strip overlaps a transition between the blade rear edge and the serrated rear edge; and', 'the serrated rear edge is disposed on the pressure side and fixed by application of an overlapping material strip to the suction side, wherein the material strip is disposed on the suction side ...

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21-01-2016 дата публикации

BALSAWOOD CORES FOR COMPOSITE MATERIAL SANDWICH PANELS AND METHOD OF THEIR MANUFACTURE

Номер: US20160017863A1
Принадлежит:

A method of manufacturing a core for a composite material sandwich panel, the method comprising the steps of: providing a sheet of balsawood with opposite major surfaces, with vessels and axial parenchyma cells of the balsawood extending between the opposite major surfaces in a thickness direction of the sheet; coating a layer of a curable resin composition onto respective opposite major surfaces of the sheet of balsawood; and curing the curable resin composition, wherein the resin composition is applied and cured so that the coating layer of cured resin composition unevenly fills or only partly fills outermost ends of at least some of the vessels in the balsawood and thereby provides, at least in the vicinity of at least some of the vessels, a non-planar outer surface of the coating layer of the cured resin composition over the opposite major surfaces. 1. A method of manufacturing a core for a composite material sandwich panel , the method comprising the steps of:(a) providing a sheet of balsawood with opposite major surfaces, with vessels and axial parenchyma cells of the balsawood extending between the opposite major surfaces in a thickness direction of the sheet;(b) coating a layer of a curable resin composition onto respective opposite major surfaces of the sheet of balsawood; and(c) curing the curable resin composition by radiation to restrict the penetration by uncured resin into the balsawood vessels; wherein the resin composition is applied and cured so that the coating layer of cured resin composition unevenly fills or only partly fills outermost ends of at least some of the vessels in the balsawood and thereby provides, at least in the vicinity of at least some of the vessels, a non-planar outer surface of the coating layer of the cured resin composition over the opposite major surfaces.2. A method according to wherein the coating layer of cured resin composition claim 1 , apart from at the outermost ends of the vessels in the balsawood at which the ...

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21-01-2016 дата публикации

VORTEX GENERATOR UNIT FOR A WIND TURBINE BLADE

Номер: US20160017864A1
Принадлежит: ENVISION ENERGY (DENMARK) APS

A wind turbine blade vortex generator unit and a method for installing it, where a wind turbine blade has at least one series of vortex generator units formed of fins extending substantially perpendicular to the surface of the airfoil and substantially in a direction from the leading edge towards the trailing edge of the wind turbine blade. The vortex generator units each comprises a fin connected to an outer side of the fin base, and where the fin is delta shaped tapering from a trailing edge towards a leading edge and where each of the vortex generator units has a layer of adhesive on an inner side of the base that extends to an outermost periphery of the base. The vortex generator unit has exactly one fin, and the base has an airfoil shaped periphery with a rounded leading edge and a trailing edge.

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18-01-2018 дата публикации

Hub and Rotor Assemby for Wind Turbines with Conjoined Turbine Blades

Номер: US20180017037A1
Автор: Kissel James L.
Принадлежит:

A hub and rotor assembly for wind turbines which include one or more conjoined blades. Each conjoined blade comprises two separate blade sections that are affixed together by a plurality of dividers or spacers. Each divider/spacer attaches to the inferior face of the first blade and the superior face of the second blade. This construction of rotor blades allows the wind to flow over and between the blades, by virtue of the space created between the two blade sections and thereby increases the surface area affected by or pushed by the wind and reduces the structural weight of each blade as compared to the prior art. Each blade is further contoured or curved to provide an area upon which the wind can “push” each blade as the wind passes over and between the blade sections which make up each conjoined blade. 1. A hub or rotor assembly for a horizontal axis wind turbine in relation to a wind direction , said hub or rotor assembly comprising:(a) A hub having an upwind portion and a downwind portion, the upwind portion being upwind from the downwind portion relative to the wind direction, said hub further defining an axis of rotation; and i) a first blade', 'ii) a second blade', 'iii) a plurality of dividers/spacers', 'wherein open spaces between said first blade and said second blade are created which are defined by said first blade, said second blade and said divider/spacers through which wind may flow., '(b) A plurality of rotor blades extending essentially radially about said hub wherein at least one of said rotor blades comprise2. The invention described in wherein said plurality of rotor blades are equally spaced radially about said hub.3. The invention described in wherein said first blade and said second blade are contoured or curved to provide an uplifted surface area for the wind to push against as it flows over the surface of said rotor blades.4. The invention described in wherein said plurality of rotor blades are contoured or curved as described herein.5. The ...

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17-01-2019 дата публикации

Bulkhead Arrangement for a Wind Turbine Blade

Номер: US20190017493A1
Принадлежит:

A bulkhead assembly for a wind turbine blade is described, wherein a pressure relief conduit is provided at the bulkhead to allow for pressure to equalise across the bulkhead. This helps to prevent faults or cracks in the bulkhead assembly due to differences in pressure on either side of the bulkhead. Furthermore, liquid traps and/or filter media can be accommodated in the conduit to prevent the passage of liquids or other matter across the bulkhead. 1. A wind turbine blade comprising:a sealed bulkhead provided in said wind turbine blade; andat least one pressure relief conduit having a first open end located at a first side of said bulkhead and a second open end located at a second side of said bulkhead,wherein said pressure relief conduit is operable to equalize the pressure difference between said first side and said second side of said bulkhead.2. The wind turbine blade of claim 1 , wherein said at least one pressure relief conduit comprises a bore defined in the body of said bulkhead claim 1 , said bore extending from the first side of said bulkhead to the second side of said bulkhead.3. The wind turbine blade of claim 1 , wherein the at least one pressure relief conduit comprises a tube or pipe extending through the body of said bulkhead.4. The wind turbine blade of claim 1 , wherein said at least one pressure relief conduit is arranged adjacent said bulkhead.5. The wind turbine blade of claim 4 , wherein said at least one pressure relief conduit is provided between said bulkhead and the blade body or outer blade shell of said wind turbine blade.6. The wind turbine blade of claim 4 , wherein said bulkhead is secured to the blade body via a sealing flange provided about the periphery of said bulkhead claim 4 , said sealing flange located between said bulkhead and said blade body claim 4 , wherein said at least one pressure relief conduit extends through said sealing flange claim 4 , adjacent to said bulkhead.7. The wind turbine blade of claim 6 , wherein the ...

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16-01-2020 дата публикации

WIND TURBINE BLADE MADE OF THERMOPLASTIC POLYMER COMPOSITE, PART OF SAID BLADE AND PRODUCTION METHOD

Номер: US20200018283A1
Принадлежит:

The invention relates to a wind turbine blade () comprising an outer casing formed at least in part of panels () of thermoplastic polymer composite, defining a leading edge () and a trailing edge () of the wind turbine blade, and at least one longitudinal stiffening member () made of polymer composite, extending along a longitudinal axis (A) of the wind turbine blade inside said wind turbine blade (), said stiffening member () being arranged between at least one panel defining the leading edge () and at least one panel defining the trailing edge (), characterized in that the thermoplastic polymer composite comprises a fibrous reinforcement and a (meth)acrylic thermoplastic polymer matrix and in that at least one panel () of thermoplastic polymer composite is connected to the stiffening member () by a weld-type interface (). 1134561645367. A wind turbine blade () comprising an outer casing formed at least in part of panels () of thermoplastic polymer composite , defining a leading edge () and a trailing edge () of the wind turbine blade , and at least one stiffening member () made of polymer composite , extending along a longitudinal axis (A) of the wind turbine blade inside said wind turbine blade () , said stiffening member () being arranged between at least one panel defining the leading edge () and at least one panel defining the trailing edge () , wherein the thermoplastic polymer composite comprises a fibrous reinforcement and a (meth)acrylic thermoplastic polymer matrix and in that at least one panel () of thermoplastic polymer composite is connected to the stiffening member () by a weld-type interface ().2. The wind turbine blade as claimed in claim 1 , wherein the fibrous reinforcement is based on fibers having an aspect ratio of at least 1000.3. The wind turbine blade as claimed in claim 1 , wherein it does not comprise more than 50% claim 1 , preferably by weight of thermosetting polymer.4. The wind turbine blade as claimed in claim 1 , wherein it does not ...

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16-01-2020 дата публикации

WIND TURBINE BLADE AND A WIND TURBINE

Номер: US20200018284A1
Принадлежит:

Provided is a wind turbine blade for a wind turbine, the wind turbine blade including an electrical conductor extending in a longitudinal direction of the wind turbine blade, and a carbon fiber material being electrically conductive and having a first portion which is arranged beside the electrical conductor, a second portion which is connected to the first portion and is attached and electrically connected to the electrical conductor, and a third portion which is connected to the second portion and at least partially overlaps with the first portion. Due to such an electrical connection between the electrical conductor and the carbon fiber material arcing and, thus, delamination of carbon can be avoided when conducting current of a lightning strike. 1. A wind turbine blade for a wind turbine , the wind turbine blade comprising an electrical conductor extending in a longitudinal direction of the wind turbine blade , and a carbon fiber material being electrically conductive and having a first portion which is arranged beside the electrical conductor , a second portion which is connected to the first portion and is attached and electrically connected to the electrical conductor , and a third portion which is connected to the second portion and at least partially overlaps with the first portion.2. The wind turbine blade according to claim 1 , further comprising a carbon element extending in the longitudinal direction of the wind turbine blade claim 1 , arranged beside the electrical conductor and being electrically conductive claim 1 , wherein the carbon fiber material comprises a fourth portion which is attached to the carbon element.3. The wind turbine blade according to claim 1 , wherein the second portion surrounds at least partially the electrical conductor.4. The wind turbine blade according to claim 1 ,wherein the third portion comprises one part which overlaps with the first portion and another part which does not overlap with the first portion.5. The wind ...

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16-01-2020 дата публикации

AIRFOIL WITH A VORTEX GENERATOR PAIR

Номер: US20200018285A1
Автор: CORTEN Gustave Paul
Принадлежит:

A wind turbine includes a blade having a leading edge, a trailing edge, and opposing first and second surfaces extending between the edges. A vortex generator pair includes a base attached to the first surface and first and second spaced apart fins extending outwardly from opposing portions of the base. The fins each have a leading edge, a trailing edge, a suction side and a pressure side. Each of the suction sides have a trailing half and a leading half. 1. A wind turbine comprising:a blade having a leading edge, a trailing edge, and opposing first and second surfaces extending between the edges; anda vortex generator pair including:a base attached to the first surface, andfirst and second spaced apart fins extending outwardly from opposing portions of the base, the fins each have a leading edge, a trailing edge, a suction side and a pressure side, each of the suction sides having a trailing half and a leading half, wherein a surface area of the trailing half is less than 200 percent of a surface area of the leading half2. The wind turbine of claim 1 , wherein the first and second fins are positioned such the first and second fins are not touching each other to define an air gap between the first and second fins and extending completely over the base.3. The wind turbine of claim 1 , wherein the surface area of the trailing half is greater than the surface area of the leading half.4. The wind turbine of claim 1 , wherein the fins are angled relative to each other such that a distance between the leading edges of the fins is greater than a distance measured between the trailing edges of the fins.5. The wind turbine of claim 1 , wherein the spaced apart fins define an area in between and the base covers less than 90% of this area.61. The wind turbine of claim 1 , wherein each of the fins are cambered inwardly by at least percent of a chord of the fin.7. The wind turbine of claim 1 , wherein the vortex generator pair is located on the blade at a radial position that is ...

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17-01-2019 дата публикации

INTERNAL TETHER FOR LIGHTNING PROTECTION

Номер: US20190020186A1
Автор: Cawood Matthew D.
Принадлежит: THOMAS & BETTS INTERNATIONAL LLC

A one-part or two-part air terminal for protecting a structure against lightning strikes. A flexible adapter, such as a spring, attaches an upper air terminal to a lower air terminal or a one-piece air terminal and base. The flexible adapter allows a flexible engagement between parts of the air terminal and has an internal passageway. A elongate tether couples parts of the air terminal in case the upper air terminal or one-piece air terminal breaks, so as to avoid a broken part from injuring individuals around. The elongate tether may be a ball chain or other type of chain. The elongate tether runs through the internal passageway of the flexible adapter. A base mounts to the one-part or two-part air terminal and mounts the air terminal to the structure. A grounding wire grounds the base to the grounding rod. 1. A flexible adapter for use with an air terminal for protecting a structure against lightning strikes comprising:an elongate body having a pair of connective ends and a central flexible portion with an internal passageway therethrough; andan elongate tether extending through said passageway, mechanically and electrically connected to the connective ends of the elongate body.2. The flexible adapter of claim 1 , wherein the elongate tether is a chain running through the internal passageway of the flexible adapter.3. The flexible adapter of claim 2 , wherein the chain is a ball chain.4. The flexible adapter of claim 3 , wherein the elongate body comprises a spring and the internal passageway is an internal passageway of the spring.5. The flexible adapter of claim 1 , wherein at least part of the air terminal is constructed of an aluminum alloy.6. The flexible adapter of claim 5 , wherein the aluminum alloy comprises a minimum of 90% aluminum.7. The flexible adapter of claim 1 , wherein at least part of the air terminal is constructed of a copper alloy.8. The flexible adapter of claim 7 , wherein the copper alloy comprises a minimum of 60% copper.9. The flexible ...

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17-04-2014 дата публикации

Trillium wind turbine

Номер: US20140105740A1
Автор: Reno Barban
Принадлежит: Reno Barban

A trillium wind turbine has an electricity-generating nacelle and swept-back, complexly-curved blades. Each blade has a main blade, a trailing edge blade, and a diversion blade. Wind is directed down the length of the blade and exits the tip. The main blade resembles a portion of a cylinder in form, the cylinder being twisted to change the angle of attack, thereby adding more lift throughout the length of the blade. The trailing edge and diversion blades are pitched relative to the wind and produce lift. Additionally, wind hitting the diversion blade is diverted behind the blade. Because the surface area and volume of the blade are larger near the nacelle and smaller at the tip, the air that travels along the blade increases in velocity as it travels producing more thrust/lift. The turbine also automatically faces into the wind without the need for sensors or positioning motors.

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