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10-01-2017 дата публикации

ИЗГОТОВЛЕНИЕ КОРНЕВОЙ СЕКЦИИ

Номер: RU2607140C2

Изобретение относится к способу изготовления корневой секции рабочей лопатки (41) ветровой турбины. Он содержит этапы сборки (A) множества опорных стержней (1) с секцией (17) сопряжения со средством сопряжения втулки ветровой турбины по существу в округлой форме так, чтобы между опорными стержнями (1) имелись промежутки (33), расположения (B) первых волокон (31) в промежутках (33), причем первые волокна (31) являются физически и/или химически совместимыми с литьевым материалом, размещения (C) первого формовочного инструмента (35) вдоль наружной поверхности округлой формы и второго формовочного инструмента вдоль внутренней поверхности округлой формы, обработки (D) литьевого материала так, чтобы образовалось его сцепление с первыми волокнами (31). Изобретение также относится к удерживающему устройству (39) опорных стержней для такой цели и корневой секции рабочей лопатки (41), изготовленной таким способом. Изобретение направлено на упрощение процесса изготовления конца корневой части для ...

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10-01-2015 дата публикации

ФОРМА ЛОПАСТИ РОТОРА ДЛЯ ИЗГОТОВЛЕНИЯ ЛОПАСТИ РОТОРА ВЕТРОЭНЕРГЕТИЧЕСКОЙ УСТАНОВКИ И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

Номер: RU2538798C2

Изобретение относится к форме лопасти ротора для изготовления лопасти ротора ветроэнергетической установки или ее части, к способу изготовления лопасти ротора ветроэнергетической установки или ее части. Форма лопасти ротора содержит нагреваемый участок формы с формообразующей поверхностью для формования поверхности лопасти ротора. Нагреваемый участок формы содержит, по меньшей мере, два участка нагрева. Каждый участок нагрева включает в себя расположенный на/под формообразующей поверхностью, по меньшей мере, один электрический резистивный нагревательный элемент и блок питания для снабжения, по меньшей мере, одного резистивного нагревательного элемента электрическим током для нагрева. Изобретение обеспечивает повышение физико-механических свойств получаемых изделий. 2 н. и 12 з.п. ф-лы, 9 ил.

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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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16-04-2019 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРЕДОТВРАЩЕНИЯ ОБЛЕДЕНЕНИЯ ЛОПАСТЕЙ ВЕТРЯНОГО ГЕНЕРАТОРА

Номер: RU2685160C2

Изобретение относится к средствам предотвращения обледенения лопастей ветряных генераторов. Способ состоит в направлении потока горячего воздуха внутри лопасти вдоль ее передней кромки. Горячий воздух осуществляет круговую циркуляцию от основания лопасти до ее вершины вдоль передней и задней кромок лопасти. Устройство содержит лопасть 6 с установленным внутри лонжероном 18, систему нагревания 5, установленную в основании лопасти 6 и включающую нагреватель воздуха 11, нагнетатель воздуха 8, блок управления питанием 12 и беспроводной блок управления 17. Нагреватель воздуха 11 связан с нагнетателем воздуха 8. Внутри лопасти 6 размещается воздуховод 19, на конце которого установлен дефлектор 21, разделяющий переднюю кромку лопасти на две части так, чтобы движение горячего воздуха осуществлялось по кругу от основания по направлению к вершине лопасти, а затем вдоль задней кромки лопасти обратно к ее основанию. Дефлектор 21 установлен снаружи воздуховода 19 в 100 мм от его конца. Изобретение направлено ...

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09-12-2019 дата публикации

ВЕТРОЭНЕРГЕТИЧЕСКАЯ УСТАНОВКА, РАЗМЕЩЕННАЯ НА ТРАНСПОРТНОМ СРЕДСТВЕ

Номер: RU2708566C2

Ветроэнергетическая установка содержит лопасть вентилятора, вращающееся устройство, которое кинетически соединено с лопастью вентилятора с возможностью осуществлять вращение вместе с лопастью вентилятора, стопорное кольцо, выполненное для обхватывания вращающегося устройства, и энергогенерирующее устройство с валом силового привода, кинетически подсоединенным к вращающемуся устройству. С помощью кинетического вспомогательного устройства, образуемого вращающимся устройством и стопорным кольцом, ветроэнергетическая установка может поддерживать выработку электричества определенный период времени даже при низкой скорости ветра или при кратковременном отсутствии ветра вследствие более плавного вращения вала силового привода за счет момента инерции. 8 з.п. ф-лы, 4 ил.

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29-03-2022 дата публикации

ЛОПАСТЬ ВЕТРОЭНЕРГЕТИЧЕСКОЙ УСТАНОВКИ, СОДЕРЖАЩАЯ КОНСТРУКТИВНЫЙ ЭЛЕМЕНТ ХВОСТОВОГО КОНЦА, В КОТОРОМ РАСПОЛОЖЕНИЕ ПУЛТРУЗИОННОГО ЭЛЕМЕНТА ЯВЛЯЕТСЯ РЕГУЛИРУЕМЫМ

Номер: RU2769206C2

Изобретение относится к конструктивному элементу хвостового конца лопасти, к лопасти ветроэнергетической установки, содержащей такой конструктивный элемент, и к способу изготовления такой лопасти. Указанный конструктивный элемент хвостового конца содержит крепежные элементы, распределенные вдоль хвостового конца части лопасти, причем между крепежными элементами расположены пултрузионные элементы. Каждый пултрузионный элемент имеет вторую боковую поверхность, обращенную к первой боковой поверхности смежного крепежного элемента. Между указанными первой и второй боковыми поверхностями по меньшей мере в направлении по толщине образованы зазоры, которые обеспечивают возможность приспосабливаемого расположения пултрузионных элементов относительно наружных слоев во время процесса инфузии смолы с помощью вакуума. Техническим результатом является снижение образования складок в переходной области между внутренней и наружной обшивками и повышение эксплуатационной гибкости при размещении удерживающих ...

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13-07-2017 дата публикации

СПОСОБ ИЗМЕРЕНИЯ УГЛА УСТАНОВКИ ЛОПАСТИ РОТОРА

Номер: RU2625414C2

Изобретение относится к способу фиксации угла (α) установки лопасти для лопасти (16) ротора для ротора (10). Способ фиксации угла (α) установки лопасти для лопасти (16) ротора для ротора (10) ветровой турбины (1), содержит этапы, на которых располагают и выравнивают бесконтактное измерительное устройство (2) напротив ветровой турбины (1), выравнивают азимутальное положение ветровой турбины (1) относительно измерительного устройства (2), выполняют вращение ротора (10) ветровой турбины (1), берут замеры и фиксируют профиль (26) лопасти (16) ротора, или его части, на предварительно определенной высоте посредством бесконтактного измерительного устройства (2) и определяют угол (α) установки лопасти для лопасти (16) ротора из данных, записанных во время взятия замеров (26) профиля. Изобретение направлено на точную фиксацию угла установки лопасти. 2 н. и 8 з.п. ф-лы, 5 ил.

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15-11-2018 дата публикации

ЛОПАСТНОЕ УСТРОЙСТВО ТУРБИНЫ

Номер: RU2672548C2
Принадлежит: АБУ АЛЬ-РУББ Халил (QA)

Изобретение относится к области ветроэнергетики. Ветровое турбинное устройство, содержащее первое вращаемое лопастное устройство и второе вращаемое лопастное устройство, выполненное с возможностью приводить во вращение первое лопастное устройство, причем первое вращаемое лопастное устройство содержит множество лопастей, выполненных с возможностью вращения вокруг первой оси, и средства изменения момента инерции первого вращаемого лопастного устройства в направлении, противоположном первой оси, при этом средства изменения момента инерции лопасти первого вращаемого лопастного устройства содержат ступицу на первой оси, причем указанная ступица соединена с лопастями первого вращаемого лопастного устройства и выполнена с возможностью вращения вместе с указанными лопастями, при этом указанная ступица содержит средства смещения момента инерции ступицы от первой оси. Изобретение направлено на выработку энергии при малых скоростях ветра. 31 з.п. ф-лы, 8 ил.

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18-07-2018 дата публикации

Номер: RU2016151598A3
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24-09-2020 дата публикации

Номер: RU2018145854A3
Автор:
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12-10-2018 дата публикации

Номер: RU2017112328A3
Автор:
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16-05-2023 дата публикации

Ветроколесо

Номер: RU2796036C1

Изобретение относится к ветроэнергетике, а именно к ветроколесам ветросиловых и ветроэнергетических установок с горизонтальной осью вращения, преимущественно предназначенным для работы с электрогенераторами сегментного типа. Ветроколесо включает вал и ступицу, выполненную в виде пластины, на периферии которой закреплены внутренние края лопастей. Лопасти выполнены в виде пар П-образных стержней, содержащих первую и вторую стойки. Первые стойки первых П-образных стержней установлены на проставке и притянуты к пластине разъемным соединением, а вторые П-образные стержни своими первыми стойками притянуты к первым стойкам первого стержня также с помощью разъемного соединения. На каждый из стержней с помощью скоб закреплены гибкие полотнища, образующие плоскость лопасти, причем внутренние концы полотнищ снабжены пружинами натяжения. Техническим результатом является повышение технологичности и уменьшение массы лопастей, а также обеспечение бурестойкости за счет упрощения замены полотнищ. 1 ил.

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14-11-2018 дата публикации

ОДНОНАПРАВЛЕННЫЙ АРМИРУЮЩИЙ НАПОЛНИТЕЛЬ, СПОСОБ ПОЛУЧЕНИЯ ОДНОНАПРАВЛЕННОГО АРМИРУЮЩЕГО НАПОЛНИТЕЛЯ И СПОСОБ ЕГО ПРИМЕНЕНИЯ

Номер: RU2672431C1

Изобретение относится к однонаправленному армирующему наполнителю и способу получения однонаправленного армирующего наполнителя. Однонаправленный армирующий наполнитель содержит размещенные поперечно обособленные элементы для облегчения распределения смолы, которые проходят вперед и назад между продольными краями листов и перемещаются между группами ровингов и между верхней и нижней поверхностями единого полотна. Изобретение обеспечивает высокое качество и прочность однонаправленного армирующего наполнителя. 4 н. и 30 з.п. ф-лы, 12 ил., 1 табл.

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13-05-2020 дата публикации

СПОСОБ СООРУЖЕНИЯ ВЕТРЯНОЙ ТУРБИНЫ И ГРУЗОПОДЪЕМНАЯ ТРАВЕРСА ДЛЯ МОНТАЖА ЛОПАСТИ РОТОРА ВЕТРЯНОЙ ТУРБИНЫ

Номер: RU2720731C1

Изобретение относится к способу сооружения ветроэнергетической установки (100), которая имеет аэродинамический ротор (110), имеющий соединения (111) лопастей ротора. Способ сооружения ветроэнергетической установки (100), имеющей аэродинамический ротор (110), который имеет соединения (111) лопастей ротора, включающий в себя этапы, на которых: крепят балластный блок (300) к грузоподъемной траверсе (300), крепят грузоподъемную траверсу (300) с балластным блоком (300) к крановому крюку (410) крана (400), крепят лопасть (200) ротора посредством грузоподъемных тросов (360) ко второму крановому крюку (340) на нижней стороне балластного блока (300) и поднимают грузоподъемную траверсу (300) с балластным блоком и лопастью (200) ротора краном (400) для монтажа лопасти (200) ротора в одном из соединений (111) лопастей ротора. Балластный блок (300) имеет по меньшей мере один балластный груз (330), причем балластный груз выбирают так, чтобы отношение между площадью лопасти (200) ротора и суммой веса ...

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27-12-2012 дата публикации

УЛУЧШЕННЫЕ ЭПОКСИДНЫЕ СИСТЕМЫ ДЛЯ КОМПОЗИТНЫХ МАТЕРИАЛОВ

Номер: RU2011125990A
Принадлежит:

... 1. Композиция, содержащая систему эпоксидной смолы, которая включает продукт реакции:эпоксидной смолы; иотвердителя, включающего:первое соединение с аминогруппой, содержащее третичный амин; инеобязательно второе соединение с аминогруппой, имеющее одну или более первичных или вторичных аминогрупп.2. Композит, изготовленный с применением системы эпоксидной смолы по п.1.3. Способ изготовления системы эпоксидной смолы по п.1, включающий подачу эпоксидной смолы и отвердителя в смеситель и их взаимодействие.4. Способ по п.3, дополнительно включающий:создание армированной волокнистой подложки;контактирование армированной волокнистой подложки с системой эпоксидной смолы; иотверждение системы эпоксидной смолы для формирования композита.

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12-01-2017 дата публикации

ВЕТРОВАЯ ЭНЕРГЕТИЧЕСКАЯ УСТАНОВКА

Номер: RU2015127100A
Принадлежит:

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20-10-2014 дата публикации

СЪЕМНЫЙ НАКОНЕЧНИК ЛОПАСТИ РОТОРА

Номер: RU2013115914A
Принадлежит:

... 1. Наконечник (100) лопасти (200) ротора, в частности лопасти ротора ветроэнергетической установки (1), причем наконечник (100) выполнен в виде самостоятельной, соединяемой с лопастью (200) детали и имеет первую соединительную поверхность (102), направленную к присоединяемой лопасти (200), и для создания соединения с лопастью (1) содержит на этой соединительной поверхности (102) первые направляющие средства (110) с направлением (FR) ввода при создании этого соединения, а также первые блокировочные средства (120) в качестве первых компонентов соединительного механизма для закрепления наконечника (100) на лопасти (200).2. Наконечник по п. 1, отличающийся тем, что первые направляющие средства (110) содержат по меньшей мере один расположенный параллельно направлению (FR) ввода вставной элемент, предпочтительно штифт (110) или штырь.3. Наконечник по п. 1 или 2, отличающийся тем, что первые блокировочные средства (120) на наконечнике (100) содержат, по меньшей мере, одну цапфу (120) в качестве ...

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12-09-2013 дата публикации

Rotorblatt einer Windenergieanlage

Номер: DE102012206109B3
Принадлежит: WOBBEN PROPERTIES GMBH

Die Erfindung betrifft ein Rotorblatt (1) einer Windenergieanlage mit einer Rotorblattwurzel (4) zum Anbinden des Rotorblattes (1) an eine Rotornabe und einer zur Rotorblattwurzel (4) abgewandten Seite angeordneten Rotorblattspitze sowie eine Windenergieanlage mit solchen Rotorblättern. Dabei weist eine relative Profildicke, die als Verhältnis von Profildicke (2) zu Profiltiefe (3) definiert ist, in einem mittleren Bereich (6) zwischen Rotorblattwurzel und Rotorblattspitze ein lokales Maximum auf.

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27-09-2012 дата публикации

Auftriebsvorrichtung für ein Rotorblatt in einer Windkraftanlage

Номер: DE102012102369A1
Принадлежит:

Es werden eine Auftriebsvorrichtung (110) für ein Rotorblatt (16) und ein Verfahren zum Erhöhen des Auftriebs eines Rotorblattes (16) für eine Windkraftanlage (10) offengelegt. Das Rotorblatt (16) hat Außenoberflächen, die eine sich zwischen einer Vorderkante (26) und einer Hinterkante (28) erstreckende Druckseite (22) und eine Saugseite (28) definieren. Die Auftriebsvorrichtung (110) enthält eine erste aerodynamische Oberfläche (112), die für eine Befestigung an der Druckseite (22) des Rotorblattes (16) ausgelegt ist, und eine zweite gegenüberliegende aerodynamische Oberfläche (114), die für eine Wechselwirkung mit an der Auftriebsvorrichtung (110) vorbeiströmenden Wind ausgelegt ist. Die Auftriebsvorrichtung (110) hat eine im Wesentlichen zunehmende Querschnittsfläche in einer Strömungsrichtung (116) des Windes. Die Auftriebsvorrichtung (110) ist dafür ausgelegt, den Auftrieb des Rotorblattes (16) zu erhöhen.

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17-03-2016 дата публикации

Vorrichtung zur Erfassung von Verformungen eines Rotorblatts und Verfahren zur Montage einer derartigen Vorrichtung

Номер: DE102014218518A1
Принадлежит:

Die Erfindung betrifft eine Vorrichtung zur Erfassung von Verformungen eines Rotorblatts einer Windkraftanlage. Die Vorrichtung umfasst eine Positionsmesseinrichtung (1), welche eine erste und eine zweite Bauteilgruppe (1.1, 1.2) aufweist, wobei durch die Positionsmesseinrichtung (1) die relative Position zwischen der ersten und der zweiten Bauteilgruppe (1.1, 1.2) messbar ist. Die Vorrichtung umfasst zudem einen Arm (2), welcher mechanisch mit der ersten Bauteilgruppe (1.1) gekoppelt ist und eine erste Klebefläche (2.5) aufweist. Die zweite Bauteilgruppe (1.2) weist eine zweite Klebefläche (1.225) auf. An der zweiten Bauteilgruppe (1.2) und / oder am Arm (2) ist ein erstes Montageelement (1.121, 2.1) fixiert ist. Weiterhin weist die Vorrichtung ein zweites Montageelement (1.122, 2.2) auf, wobei das erste Montageelement (1.121, 2.1) lösbar mit dem zweiten Montageelement (1.122, 2.2) verbindbar ist und das zweite Montageelement (1.122, 2.2) so ausgestaltet ist, dass dieses am Rotorblatt ...

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30-01-2020 дата публикации

ROTORBLATT FÜR EINE WINDENERGIEANLAGE, WINDENERGIEANLAGE; VERFAHREN ZUM VERLÄNGERN EINES ROTORBLATTS SOWIE VERFAHREN ZUM HERSTELLEN EINES ROTORBLATTS

Номер: DE102018005965A1
Принадлежит:

Die Erfindung betrifft ein Rotorblatt für eine Windenergieanlage, eine Windenergieanlage, ein Verfahren zum Verlängern wenigstens eines Rotorblatts für eine Windenergieanlage sowie ein Verfahren zum Konstruieren eines Rotorblatts für eine Windenergieanlage. Das Rotorblatt weist einen ersten Bereich, welcher sich ausgehend von der Rotorblattwurzel radial nach außen hin erstreckt, und einen zweiten Bereich, welcher an den ersten Bereich angrenzt und sich radial nach außen bis zu der Rotorblattspitze hin erstreckt, auf, wobei der erste Bereich im montierten Zustand an der Windenergieanlage bei Rotation eine Rotationsfläche aufspannt, aus welcher sich der zweite Bereich heraushebt, und wobei der zweite Bereich in Abhängigkeit einer Länge, einer Krümmung und einer Biegesteifigkeit des ersten Bereichs derart ausgebildet ist, sodass das Rotorblatt in montiertem Zustand an der Windenergieanlage während des Betriebs der Windenergieanlage im Nennlastbereich, insbesondere unter Extremlast, bei einem ...

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05-02-2009 дата публикации

Rotorblatt für Windkraftanlagen

Номер: DE102007036536A1
Принадлежит:

Die Erfindung betrifft die Bauweise von Rotorblättern von Windkraftanlagen, deren äußere Form durch erhöhten Innendruck aufrechterhalten wird. Gemäß der Erfindung sind zumindest Saug- und Druckseite der Rotorblätter durch biegesteife Begrenzungsplatten (2, 3) gebildet.

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29-03-2018 дата публикации

Automatisierungsvorrichtung und Verfahren zum Fertigen eines Rotorblattes einer Windenergieanlage

Номер: DE102010043201B4

Automatisierungsvorrichtung zum Fertigen eines Rotorblatts einer Windenergieanlage, mit einer Vorrichtung zum Auftragen von Klebemittel auf eine mit Klebemittel zu versehende Oberfläche (44, 45) einer Rotorblatthälfte (40, 41), mit einer Auftragseinheit (10), welche eingerichtet ist, über die mit Klebemittel zu versehende Oberfläche (44, 45) geführt zu werden und bei der Bewegung auf der Oberfläche (44, 45) das Klebemittel aufzutragen, und einer Zuführeinheit, welche eingerichtet ist, Klebemittel in einen Raum zuzuführen, der im Wesentlichen durch die Auftragseinheit (10) und die mit Klebemittel zu versehende Oberfläche (44, 45) begrenzt wird, wobei die Auftragseinheit (10) eine Seite (11) mit einer Öffnung aufweist und die Öffnung derart ausgestaltet ist, um dem auf der Oberfläche (44, 45) aufgetragenen Klebemittel eine vorbestimmte Kontur zu geben, und Vorrichtungen (14, 16, 18, 22, 23, 24) zum Positionieren und/oder Orientieren der Vorrichtung zum Auftragen von Klebemittel zu der mit ...

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06-06-2012 дата публикации

Verfahren zur Herstellung einer Kantenschutzbeschichtung für Rotorblätter einer Windenergieanlage und entsprechende Kantenschutzbeschichtung

Номер: DE102010053170A1
Принадлежит:

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer Kantenschutzbeschichtung für ein Rotorblatt, eine Kantenschutzbeschichtung für ein Rotorblatt, die sich durch besondere mechanische Eigenschaften auszeichnet sowie ein mit einer solchen Kantenschutzbeschichtung beschichtetes Rotorblatt.

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24-09-2015 дата публикации

Propeller und damit ausgestattete Strömungsmaschine und/oder Antriebsmaschine

Номер: DE102014003887A1
Принадлежит:

Es wird ein Propeller (1) vorgeschlagen, der über mindestens einen von einem Drehzentrumsabschnitt (5) abstehenden Propellerflügel (4) verfügt, der eine eine Rahmenöffnung (18) umrahmende äußere Rahmenstruktur (13) aufweist. Die Rahmenöffnung (18) ist vorspannungsfrei von einer biegeflexiblen Membran bedeckt, deren Membranfläche größer ist als die von der Membran (22) bedeckte Öffnungsfläche der Rahmenöffnung (18), sodass die Membran (22) abhängig von der Drehrichtung des Propellers (1) in einander entgegengesetzte Richtungen auswölbbar ist. Dieses adaptive Verhalten ermöglicht eine effektive Nutzung des Propellers (1) bei beiden Drehrichtungen (3a, 3b).

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28-05-2020 дата публикации

Rotorblattform und Verfahren zur Herstellung eines Rotorblattes für eine Windenergieanlage sowie Windenergieanlage

Номер: DE102018009336A1
Принадлежит:

Die Erfindung betrifft ein Rotorblatt für eine Windenergieanlage mit einer Blattwurzel, einer Blattspitze und mindestens einer Rotorblattschale (4, 5), welche sich in einer Längsrichtung (L) von der Blattwurzel zur Blattspitze erstreckt und einen inneren Schalenbereich (9) und einen äußeren Schalenbereich (10) aufweist, wobei der innere Schalenbereich (9) einen ersten Faserverbund mit mindestens zwei ersten Faserlagen (11, 12) und der äußere Schalenbereich (10) einen zweiten Faserverbund mit mindestens zwei zweiten Faserlagen (13, 14) aufweist und sich die ersten und zweiten Faserlagen (11 - 14) im Wesentlichen in Längsrichtung (L) erstrecken, wobei mindestens eine erste Faserlage (11) des ersten Faserverbunds an oder im Bereich (ΔE) mindestens einer auf die Längsrichtung (L) bezogenen Endposition (E) endet, wohingegen sich die übrigen ersten Faserlagen (12) des ersten Faserverbunds über die Endposition (E) hinaus erstrecken, und mindestens eine zweite Faserlage (13) des zweiten Faserverbunds ...

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05-04-2012 дата публикации

System for detecting deflection of rotor blade coupled to hub of wind-power plant rotor, has sensor that is coupled to rope or clamping device, to measure shift of rope which is displaced relative to deflection of rotor blade

Номер: DE102011053893A1
Принадлежит:

The system (300) has rope (302,304) that is extended partially adjacent to tip (42) of rotor blade (22), such that one end (306,307) of rope is secured at rotor blade or hub (20). Another end (308,309) of rope is secured at clamping device (314) which is provided at rotor blade or hub, so as to maintain preset voltage between ends of ropes. A sensor (318) is coupled to rope or clamping device, to measure shift of the rope. The rope is in inner wall (310,312) of rotor blade, so that the rope is displaced relative to rotor blade, when the rotor blade is deflected. An independent claim is included for method for controlling and detecting deflection of rotor blade coupled to hub of wind-power plant rotor.

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11-07-2013 дата публикации

Windkraftanlagen und Windkraftanlagen-Rotorblätter mit verringerten Radarquerschnitten

Номер: DE102013100114A1
Принадлежит:

Windkraftanlagen-Rotorblätter mit verringerten Radarquerschnitten enthalten eine Schale mit einer Vorderkante, die einer Hinterkante gegenüberliegt, ein strukturelles Stützelement, das die Schale stützt und im Inneren des Windkraftanlagen-Rotorblattes zwischen der Vorderkante und der Hinterkante angeordnet ist und sich über wenigstens einen Abschnitt einer Rotorblattspannweite erstreckt, wobei das strukturelle Stützelement Glasfasern aufweist, einen oder mehrere Hohlräume innerhalb des Windkraftanlagen-Rotorblattes und ein leichtes breitbandiges Radar absorbierendes Füllmaterial, das in wenigstens einem von dem einem oder den mehreren Hohlräumen angeordnet ist, um den verringerten Radarquerschnitt zu erzielen.

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17-10-2019 дата публикации

Windenergieanlagen-Rotorblatt und Windenergieanlage

Номер: DE102018108695A1
Принадлежит:

Es wird ein Windenergieanlagen-Rotorblatt (200) mit einer Blattaußenseite (207), einer Wandung (205), einer Blattinnenseite (206) und mindestens einem ersten und zweiten Rotorblattteil (210, 220) vorgesehen. Das erste und zweite Rotorblattteil (210, 220) werden mittels mindestens einer Befestigungseinheit (300) in einer Teilungsebene (200a) miteinander befestigt. Die Wandung (205) ist im Bereich des ersten Rotorblatts (210) ein Laminat (210a) mit mindestens einer Durchgangsbohrung (210b). Die Wandung (205) ist im Bereich des zweiten Rotorblatts (220) ein Laminat (220a) mit mindestens einer Durchgangsbohrung (220b). Die mindestens eine Befestigungseinheit (300) weist ein Seil (310) mit einem ersten und zweiten Ende (311, 312) sowie ein Spannelement (330) auf. Das Spannelement (330) ist mit dem ersten und zweiten Ende (311, 312) des Seils (310) gekoppelt und ist dazu ausgestaltet, das Seil (310) vorzuspannen. Das erste und zweite Ende (311, 312) des Seils (310) sowie das Spannelement (330 ...

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15-12-2016 дата публикации

Multifunktionale Flaps als Rückstromklappe für die Luftfahrt

Номер: DE102015017127A1
Принадлежит:

Vorrichtung eines Sicherheitssystems und/oder Ressourcen-Energieeffizienz-Verbesserungs-Systems zur Strömungsbeeinflussung eines Aero- oder Hydrodynamischen Körpers (3), bevorzugt eines Flügels (3), nach dem Prinzip einer Rückstromklappe (4), dadurch gekennzeichnet, dass diese mit dem Aero- oder Hydrodynamischen Körper (3), insbesondere Flügel (3), zumindest eine teilweise Verschiebung der Klappen-Bereichsabgrenzung (21) durch die Rückstromklappe (4) und deren Abgrenzungs-Bauteil (5) bei teilweiser und/oder vollständiger Aufstellung der Rückstromklappe (4) ausbilden und so dass dadurch der/die Endkanten-Ablösewirbel (1) und/oder Klappen-Ablösewirbel (2) beeinflusst wird/werden, und dass die Klappen-Bereichsabgrenzung (21) sich vollständig bis an oder über die Profil-Endkante (6) verschiebt oder auch nur bis zu einem Teil vor der Profil-Endkante (6) verschiebt, und dass dieses mit einem Basiselement (23) auf dem Flügel (3) beweglich verbunden, bevorzugt dauerhaft und/oder für Wartungszwecke ...

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27-02-2020 дата публикации

Aerodynamischer Profilkörper

Номер: DE102013104695B4

Aerodynamischer Profilkörper (1), der eine äußere, aerodynamisch umströmbare Strömungsoberfläche (7) hat, wobei der aerodynamische Profilkörper (1)a) mindestens eine erste Ausblasöffnung (3a) und mindestens eine zweite Ausblasöffnung (3b) hat, die in der Strömungsoberfläche (7) des Profilkörpers (1) zum Ausblasen eines Ausblas-Luftstromes (V) vorgesehen sind, undb) einen in dem Profilkörper (1) vorgesehenen Ausblas-Luftstromkanal (2) hat, der zum Einen mit einer Druckluftquelle zum Bereitstellen des Ausblas-Luftstromes (V) verbindbar ist und der zum Anderen in die mindestens eine erste Ausblasöffnung (3a) und die mindestens eine zweite Ausblasöffnung (3b) mündet, wobeic) eine Ausblas-Steuervorrichtung zum Steuern der Ausblasung des Ausblas-Luftstromes (V) wahlweise entweder aus der mindestens einen ersten Ausblasöffnung (3a) oder der mindestens einen zweiten Ausblasöffnung (3b) vorgesehen ist,d) die Ausblas-Steuervorrichtung mindestens eine erste Steuer-Luftstromzuführung (4a) zum Zuführen ...

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09-02-1995 дата публикации

Rotorblatt für Windkraftanlagen

Номер: DE0009315747U1
Автор:

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14-06-2012 дата публикации

Verfahren und Vorrichtung zum Herstellen eines Holmkastens für ein Rotorblatt, Holmkasten

Номер: DE102010062546A1
Автор: EYB ENNO, EYB, ENNO
Принадлежит:

Die Erfindung betrifft ein Verfahren zum Herstellen eines längserstreckten Holmkastens (1) für ein Rotorblatt einer Windenergieanlage, wobei zwei längserstreckte Gurtkörper und zwei längserstreckte Stegkörper (11, 12) zu dem Holmkasten (1) zusammengefügt werden, wobei die Gurtkörper (2, 3) einen, insbesondere im Wesentlichen flachen, Mittelteil (4, 5) und beidseitig vom Mittelteil (4, 5) abstehende Gurtflansche (6, 7) mit Verbindungsflächen (8, 9) aufweisen, wobei die Stegkörper (11, 12) seitlich angeordnete Verbindungsflächen (13, 14) aufweisen, die zum Verfügen mit den Verbindungsflächen (8, 9) der Gurtflansche (6, 7) angepasst sind. Die Erfindung betrifft weiter eine Vorrichtung (20) zum Herstellen eines längserstreckten Holmkastens (1) für ein Rotorblatt einer Windenergieanlage, der aus zwei längserstreckten Gurtkörpern (2, 3) und zwei längserstreckten Stegkörpern (11, 12) zusammengefügt wird oder zusammenfügbar ist. Die Erfindung betrifft schließlich einen längserstreckten Holmkasten ...

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01-02-2012 дата публикации

Wind turbine composite structures

Номер: GB0002473020B

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19-04-2017 дата публикации

Repair of wind turbine components

Номер: GB0002537101B
Принадлежит: VESTAS WIND SYS AS, Vestas Wind Systems A/S

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01-01-2014 дата публикации

Wind turbine components

Номер: GB0201320166D0
Автор:
Принадлежит:

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30-07-2014 дата публикации

Turbine blade arrangement

Номер: GB0201410862D0
Автор:
Принадлежит:

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21-05-2014 дата публикации

Wind turbine blade manufacture

Номер: GB0201406327D0
Автор:
Принадлежит:

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17-09-2014 дата публикации

Composite component having a safety edge

Номер: GB0201413551D0
Автор:
Принадлежит:

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09-04-2014 дата публикации

Blade manufacturing method

Номер: GB0201403152D0
Автор:
Принадлежит:

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15-07-2015 дата публикации

A wind turbine blade and a method of assembling a wind turbine blade and a spar cap connection piece.

Номер: GB0201509135D0
Автор:
Принадлежит:

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12-12-2012 дата публикации

Method and system for transporting and storing at least two wind turbine blades

Номер: GB0201219279D0
Автор:
Принадлежит:

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07-10-1992 дата публикации

Wind turbine blades

Номер: GB0002254382A
Принадлежит:

A windmill blade is formed by moulding a foamable resin aerofoil 12 about a tubular steel spar 10 which may be rectangular in section (fig 1) or comprise a circular section having fins (fig 2). The spar may be provided with one or a plurality of spaced aerofoil cross section bulkheads (16). The foamable resin may be expoxy based with organosilicon compound foaming additives or it may be a syntatic epoxy resin with a low density filler. Details of alternative foams and handovers are given. ...

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06-02-2013 дата публикации

Moulding method using forming elements

Номер: GB0002493457A
Принадлежит:

A moulding method comprises arranging multiple first forming elements 90 in a first moulding member 92, such that the first forming elements define multiple recesses 96 between each other in the first moulding member. The moulding method further includes arranging multiple second forming elements 102 in the first moulding member in the recesses, such that each recess receives at least one of the second forming elements. The first moulding member and a second moulding member 106 are presented to each other. A moulding material is arranged in the mould 91, and the first and second moulding members are pressed onto each other to compress the forming elements and form an article. Preferably each recess defined between adjacent first forming members receives a respective one of the second forming members. A moulding is also claimed.

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22-04-2015 дата публикации

Improvements relating to lightning protection systems for wind turbine blades

Номер: GB0002519333A
Принадлежит:

A method of fabricating a pre-formed component 20 of a lightning protection system for a wind turbine blade, the method comprising providing a first fabric layer 82; applying a conductive layer 86 to the first fabric layer; and applying a second fabric layer 84 so as to sandwich the conductive layer between the first and second insulating layers. The stage of applying a conductive layer to the first fabric layer may comprise applying multiple conductive layer portions that overlap each other. Preferably reinforced zones are created by applying first and second metallic elements to either side of the conductive layer so that they are in registration. The conductive layer may be a metallic foil. A wind turbine blade comprising a conductive layer sandwiched between a first fabric layer and a second fabric layer is also claimed.

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09-12-2015 дата публикации

Wind turbines incorporating radar absorbing material

Номер: GB0002526795A
Принадлежит:

A wind turbine blade 100 comprising a shell 108 defining a hollow interior, where a reinforcing spar structure extends longitudinally and comprises a spar cap 106 connected to or integrated with the shell. Radar-absorbing material is incorporated within the blade, where the radar-absorbing material includes an impedance layer 118 located near an exterior surface of the shell and a radar-reflecting surface inboard of and spaced apart from the impedance layer. The impedance layer and the radar-reflecting surface together form a radar absorber. In spar cap regions of the blade, the radar-reflecting surface is formed by the spar cap. A dielectric component 120 in the form of a glass-fibre pultrusion may be provided between the spar cap and the impedance layer. A method of making a wind turbine blade is also claimed.

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06-02-2019 дата публикации

Co-bonded electroformed abrasion strip

Номер: GB0002531837B
Принадлежит: BOEING CO, The Boeing Company

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05-09-2012 дата публикации

Radar absorbing material compatible with lightning protection systems

Номер: GB0002488561A
Принадлежит:

A wind turbine component incorporating radar-absorbing material having increased compatibility with lightning protection systems includes a radar reflecting ground plane having an electrical conductivity and/or a dielectric constant that is higher in the presence of an electric field having a frequency of 1 GHz and above, i.e. navigation radar frequencies, than in the presence of an electric field having a frequency of 10 MHz and below commonly associated with lightning. Suitable materials for the ground plane include ferroelectric and ferrimagnetic materials and percolating material combinations, all of which have frequency-dependent properties that can be tuned to make the ground plane highly reflective at radar frequencies and benign at lightning discharge frequencies. A percolating combination may be tuned for conductivity to peak between 1 and 10GhZ. Reduces interactions between lightning receptors and the ground plane.

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24-11-2010 дата публикации

Lightning protected hinge for wind turbine components

Номер: GB0002470344A
Принадлежит:

A hinged connection apparatus for securing a first wind turbine component e.g. a blade to a second e.g. a control surface or aileron. The first or second wind turbine component comprises at least one hinge housing 15 in which an electrically sensitive component, such as a cable or an electrical activated hinge pin, is retained. Preferably, the interior portion of the hinge housing 30 is made of a glass fibre composite material that is fatigue resistant and electrically nonconductive. The exterior 31 of the hinge housing on the other hand is preferably electrically conductive. An extendable conductive or nonconductive sleeve 32 may be provided to bridge the gap in-between one hinge housing and an adjacent hinge housing.

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21-04-1954 дата публикации

Improvements in or relating to wings for wind motors

Номер: GB0000707620A
Автор:
Принадлежит:

... 707,620. Wind motors. FORSMAN, E. E. Feb. 6. 1952, No. 3104/52. Class 110(3) The blade of a wind motor comprises a, number of segments 1a, 1d, Fig. 1, each consisting of transverse ribs 13b, Fig 2, inter-connected to form a framework covered with sheet metal or canvas, the ribs being provided with aligned holes a through which passes the supporting spar 2, and interengaging means on the spar and segments to impart a twist to the latter and to retain them in place. As shown in Fig. 2 the holes are provided with diametral slots pitched at an angle varying from end to end. These slots are engaged by ribs 20, Fig. 8, on the spar. Alternatively the slots in the ribs are all in the same plane and the ribs 20 are of helical form. The holes d in the end ribs of a segment are bushed and soft packing is arranged between the flanges of bushes in adjacent segments to make the segments watertight. the pressing together of the segments being effected by nuts and washers threaded on the ends of the spar ...

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17-05-1989 дата публикации

THE DESIGN OF A WINDMILL BLADE

Номер: GB0008907544D0
Автор:
Принадлежит:

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03-10-2018 дата публикации

Coating

Номер: GB0002560972A
Принадлежит:

A polyurea coating composition to coat a wind turbine blade or part thereof, is derived from polymerisation of a polyisocyanate and a polyamine, the polyisocyanate comprising one or more aliphatic isocyanates, such as hexamethylene diisocyanate, isophorone diisocyanate or methylene bis (4-cyclohexylisocyanate) and the polyamine comprising two or more aliphatic polyamines having primary and/or secondary amine groups, wherein the aliphatic polyamines comprise at least one triamine and at least one diamine. Also disclosed is a method for preparing the polyurea coating composition; a kit for protecting a substrate using the polyurea coating composition; and a method for protecting a substrate, such as a wind turbine or part thereof the polyurea coating composition.

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06-05-2009 дата публикации

A hinge apparatus for connecting first and second wind turbine components comprising a rotary actuator

Номер: GB0000904871D0
Автор:
Принадлежит:

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10-09-2008 дата публикации

Rotor blade extension portion having a skin located over a framework

Номер: GB0000814107D0
Автор:
Принадлежит:

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13-05-2020 дата публикации

Wind turbine blade with a flow controlling element

Номер: GB0202004396D0
Автор:
Принадлежит:

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30-10-2019 дата публикации

A container comprising fibre material for a fibre-reinforced composite component

Номер: GB0201913332D0
Автор:
Принадлежит:

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24-06-2020 дата публикации

Blade shell section and a wind turbine blade comprising a blade shell section

Номер: GB0202006893D0
Автор:
Принадлежит:

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04-09-2019 дата публикации

Part element for a wind turbine blade and method for manufacturing a part element for a wind turbine blade

Номер: GB0201910566D0
Автор:
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19-08-2020 дата публикации

System and method for installation of cables in an elongated structure

Номер: GB0202010478D0
Автор:
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14-10-2020 дата публикации

Jointed wind turbine blade having improved transitions between varying material combinations

Номер: GB0202013647D0
Автор:
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17-05-2023 дата публикации

Fairing for a modular blade

Номер: GB0002612268A8
Принадлежит:

A fairing for a modular blade of a wind turbine generator, comprising a joining zone (1) disposed between two consecutive modules (2, 3) of the modular blade (100). The fairing (200) is comprised of different components; the suction side fairing (12), the pressure side fairing (13) and auxiliary components, such as tabs (15, 16) to facilitate the joining of the components. The leading edge fairing (19) and the trailing edge fairing (20) are constituted of an elastomeric material, preferably silicone, supported in a rigid glass fibre framework (21) in order to absorb the warping experienced by the blade during the operation thereof. The attachment elements employed to join the fairings together and to the setbacks (11, 11') of the blade shell (100) are rivets or similar. All the fairings incorporate the metal elements necessary to be equipotentially bonded, being linked to the lightning down-drop.

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25-05-2022 дата публикации

A precured fibrous strip for a load-carrying structure for a wind turbine blade

Номер: GB0002601126A
Принадлежит:

A precured fibrous composite strip 50, 50’ for a load-carrying structure, such as a spar cap 40, for a wind turbine blade; the strip has first and a second longitudinal ends 51, 52; a first and second sides 53, 54 defining a width; and upper and lower surfaces 55, 56 defining a thickness. The strip comprises a chamfer region 60 at an end of the strip comprising: a primary chamfer 60a formed in the upper surface and a secondary chamfer 60b in the lower surface; wherein the chamfers are shaped so that the chamfer region has an asymmetric profile shape. Preferably, the chamfer lengths are different, with the primary chamfer length being at least 10% larger than the secondary chamfer; the double chamfer surfaces may have changing taper angles or may be shaped to be substantially plane, parabolic, spline-shaped or s-shaped chamfers. Preferably, the chamfer region has a blunt face with an end step thickness. The precured strip is preferably a pultruded strip with unidirectional fibres oriented ...

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15-09-2011 дата публикации

RETRACTABLE ROTOR BLADE STRUCTURE

Номер: AT0000524654T
Принадлежит:

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15-04-2020 дата публикации

Rotor blade for a wind turbine

Номер: AT0000521427B1
Автор:
Принадлежит:

Die Erfindung betrifft ein Rotorblatt (3) für eine Windkraftanlage (1), wobei das Rotorblatt (3) eine Oberfläche aufweist, welche bei einer bestimmungsgemäßen Verwendung des Rotorblattes (3) eine Luftströmung umlenkt, um eine Energie der Luftströmung in eine Bewegungsenergie des Rotorblattes (3) umzuwandeln, wobei eine Größe der Oberfläche des Rotorblattes (3) variierbar ist. Um einen optimierten Betrieb einer Windkraftanlage (1), welche ein solches Rotorblatt (3) aufweist, zu ermöglichen, ist erfindungsgemäß vorgesehen, dass das Rotorblatt (3) zumindest einen Luftkanal mit zumindest einer Lufteintrittsöffnung an einer Saugseite des Rotorblattes (3) und zumindest einer Luftaustrittsöffnung an einer Druckseite des Rotorblattes (3) aufweist, wobei die Lufteintrittsöffnung in Bezug auf eine Luftströmungsrichtung bei einer erfindungsgemäßen Verwendung des Rotorblattes (3) näher an einer Vorderkante des Rotorblattes (3) angeordnet ist als die Luftaustrittsöffnung.

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15-01-2012 дата публикации

WIND TURBINE BLADE WITH ONE OR MORE SHOCK-MOUNTS

Номер: AT0000540220T
Автор: BECH ANTON, BECH, ANTON
Принадлежит:

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15-06-2011 дата публикации

WIND TURBINE SHEET

Номер: AT0000511016T
Принадлежит:

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15-08-2013 дата публикации

ROTORFLÜGEL FÜR EINE TURBINE

Номер: AT0000512432A1
Принадлежит:

The invention relates to a rotor blade (1) for a turbine. According to the invention, this rotor blade (1) has a cavity (10) and at least two ribs (32, 32', 42, 42', 52, 52', 62, 62', 72, 72') at the lower end of said rotor blade. The invention further relates to a turbine, particularly a tidal current turbine, having at least two, preferably three, rotor blades (1) according to the invention. The design according to the invention means that the rotor blade is sufficiently stable even with smaller diameters of the lower end, and the proportion of the overall length of the rotor blade for energy recovery can be substantially increased.

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15-08-2006 дата публикации

CONNECTION BETWEEN CONSTRUCTION UNITS

Номер: AT0000334802T
Принадлежит:

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15-05-2004 дата публикации

USE OF A BUTT JOINT FOR ROTOR BLADES

Номер: AT0000265000T
Принадлежит:

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06-12-2018 дата публикации

WIND POWER GENERATING DEVICE INSTALLED IN A VEHICLE

Номер: AU2018203432A1
Принадлежит: FOUNDRY INTELLECTUAL PROPERTY PTY LTD

A wind power generating device includes: a fan blade; a rotating device, which is kinetically connected to the fan blade so as to rotate with the fan blade; a securing ring being configured to surround the rotating device; and a power generating device with a power input shaft kinetically connected to the rotating device. By a kinetic assisting device formed by the rotating device and the securing ring, the wind power generating device is capable of maintaining a time period of electricity generation even when wind speed is low or none due to vehicle stop, and further enhances the practical requirement of wind power generating device as being installed in a vehicle. b5 0~e( 0a ...

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30-05-2019 дата публикации

Propeller

Номер: AU2019203301A1
Принадлежит: FPA Patent Attorneys Pty Ltd

A propeller having a means for creating fluid flow in a non-axial direction and redirecting it in an axial direction.

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14-01-2021 дата публикации

WIND TURBINE BLADE MONITORING SYSTEMS

Номер: AU2020204128A1
Принадлежит:

Embodiments of the present disclosure provide systems, methods, and computer-readable storage media configured to monitor wind turbines and detect damage to one or more components of the wind turbines, such as damage to the blades. The techniques disclosed herein may utilize sensors (e.g., acoustic sensors) disposed within air cavities of one or more blades of the wind turbines to detect acoustic signals or acoustic energy caused by corrosive impacts (e.g., wind, dust, rain, hail, lightning, etc.) to the wind turbine. Information associated with the acoustic signals may be provided to and received by a processor used to determine whether one or more of the blades of the wind turbines have been damaged. The techniques disclosed herein may facilitate real-time or near-real-time monitoring of wind turbines for damage, which may enable more efficient operation and maintenance of wind turbines.

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08-07-2021 дата публикации

Method for manufacturing a structural component of a blade segment for a rotor blade of a wind turbine

Номер: AU2018452334A1
Принадлежит:

A method for manufacturing a structural component of a blade segment for a rotor blade (28) includes providing a mold (150) of the structural component having an outer wall (152) that defines an outer surface of the structural component. The method also includes laying up one or more fiber layers (154) in the mold (150) so as to at least partially cover the outer wall (152). As such, the fiber layer(s) (154) form the outer surface of the structural component. Further, the method includes providing one or more metal mesh layers (156) having one or more ends. Moreover, the method includes providing a cover material (160) to the end(s) of the metal mesh layer(s) (156). In addition, the method includes placing the metal mesh layer(s) (156) with the covered end(s) atop the fiber layer(s) (154). Thus, the method includes infusing the fiber layer(s) (154) and the metal mesh layer(s) (156) together via a resin material so as to form the structural component.

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28-07-2011 дата публикации

Wind turbine

Номер: AU2007207703B2
Принадлежит:

A method for preparing a roofing membrane, and a membrane, having significantly less adhesive while retaining the same sealing properties. The reduction in the amount of adhesive significantly decreases the cost of raw materials needed for manufacturing the membrane and thus reduces the overall cost of the membrane itself.

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19-01-2012 дата публикации

Wind turbine rotor

Номер: AU2008225239B2
Принадлежит:

Wind power plant rotor comprising one or more rotor blades (20, 30) and stiffening elements (5-9) to stiffen the rotor, where the rotor blades (20, 30) are arranged such that they can turn around their longitudinal axes relative to corresponding rotor stiffening elements (5-9). Each rotor blade (20, 30) may comprise at least two rotor blade parts (1, 2) where the outer rotor blade part (2) may be turnably arranged relative to the inner rotor blade part (1). The solution facilitates use of longer or slimmer rotor blades (20, 30) while strength and stiffness increase. The fatigue forces are thereby reduced while the corresponding tower structure (12) can be made stiffer and lighter. Manufacturing and transport costs are reduced. Further, the stiffening elements (5-9) may be formed with an aerodynamic outer cross section as for example a drop profile or wing profile in order to reduce air drag and audible noise.

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25-02-2016 дата публикации

Removable rotor blade tip

Номер: AU2011298883B2
Принадлежит:

A rotor blade tip (100) for a rotor blade (200), in particular for a rotor blade of a wind energy installation (1), which is in the form of an autonomous part which can be connected to the rotor blade (200), and has a first connecting surface (102), which is directed in the direction of the rotor blade to be connected. In order to produce the connection to the rotor blade (200), first guide means (110) having a guide device (FR) for production of the connection to the rotor blade (200), as well as first locking means (120) for attachment of the rotor blade tip (100) to the rotor blade (200), are provided on the connecting surface (102), as first components of a connecting mechanism. In particular for a wind energy installation (1), the rotor blade (200) consists of a rotor blade body (202) having an aerodynamic profile (204), which has a pressure side (204.2) and a suction side (204.1), a rotor blade root at a first end of the rotor blade body (206) and of the rotor blade tip (100) at a ...

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25-08-2005 дата публикации

Rotor blade for a wind turbine

Номер: AU2005212637A1
Автор: WOBBEN ALOYS, ALOYS WOBBEN
Принадлежит:

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27-05-2010 дата публикации

Rotor blade for a wind energy installation

Номер: AU2010201844A1
Автор: ROHDEN ROLF, ROLF ROHDEN
Принадлежит:

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17-11-2003 дата публикации

ROTOR BLADE FOR WIND ENERGY TURBINES

Номер: AU2003233225A1
Принадлежит:

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14-09-2017 дата публикации

Rotor blade element for a wind turbine, rotor blade and a production process therefor and wind turbine with rotor blade

Номер: AU2014314522C1

The invention relates to a rotor blade element, in particular produced by a process according to Claim 10, in particular a rotor blade edge for a wind turbine, with a base comprising a fibre material saturated with curable resin and with a surface foil with a bonding layer arranged between the base and the surface foil. According to the invention, it is proposed that the surface foil comprises ultra-high molecular weight polyethylene (UHMWPE) and that the bonding layer comprises a first rubber layer and a second rubber layer, wherein the first rubber layer is allocated to the surface foil and the second rubber layer is allocated to the base.

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11-05-2017 дата публикации

Method for producing a composite molded part and composite molded part

Номер: AU2014304815B2

The invention relates to a composite molded part (1), in particular produced in accordance with a method according to the invention, in particular for a wind turbine, comprising: a thermoplastic plastic and a fiber composite semi-finished product. Furthermore, according to the invention, the fiber composite semi-finished product comprises a flexible, braided-structure-like fiber system (20), and the thermoplastic plastic is distributed as a shaping core material (2A) in the flexible, braided-structure-like fiber system (20) of the fiber composite semi-finished product and is connected to the braided-structure-like fiber system (20), wherein the braided-structure-like fiber system (20) in the composite with the shaping core material (2A) has fibers (21, 22) oriented with respect to each other in such a way that the fibers cross each other, said fibers having a fiber angle at a crossing point which is between 10° and 90°, in particular between 30° and 60°, the fibers (21, 22) preferably being ...

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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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02-10-2014 дата публикации

Determining loads using various sensor locations

Номер: AU2014201446A1
Принадлежит:

DETERMINING LOADS USING VARIOUS SENSOR LOCATIONS A system and method for pressure based load measurement are provided. The system and method measure at least one pressure differential (P1-P2) on an airfoil (20) and determine at least one aerodynamic load associated with the at least one pressure differential. The determined at least one load is used to modify characteristics of the airfoil to increase efficiency and/or avoid damage. The determined at least one aerodynamic load may be further utilized to balance and/or optimize loads at the airfoil, estimate a load distribution along the airfoil used to derive other metrics about the airfoil, and/or used in a distributed control system to increase efficiency and/or reduce damage to, e.g., one or more wind turbines. Receive Pressure Sensor Data 805 ,, Determine Pressure Differentials Determine Loads L r1LN LT Lod ut of Blne Modify Blade Characteristics Lds Insid Aceptable Range? Modify Blade Characteristics ...

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21-07-2016 дата публикации

Device and method for producing semifinished products for wind power system rotor blades and rotor blade and wind energy system produced therewith

Номер: AU2013343836B2
Принадлежит:

The invention relates to a device (1) for producing blade end semifinished products (101) for wind power system rotor blades (100), with a winding mandrel (3a), which can be rotated to wind up preferably strip-shaped, fibre composite material. According to the invention it is proposed that an impregnation system (5) which can be traversed along the winding mandrel for the impregnation of the fibre composite material before rewinding around the winding mandrel is a magazine device (7) for providing the fibre composite material which can be moved along the winding mandrel, preferably synchronously with the impregnation device.

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19-05-2016 дата публикации

Improvements in or relating to fibre reinforced composites

Номер: AU2012356792B2
Принадлежит:

Prepregs and stacks of prepregs based on reactive epoxy resins that can be cured at lower externally applied temperatures such as from 70°C to 110°C with acceptably short cycle times comprise epoxy resins of epoxy equivalent weight from 200 to 500 containing a curing agent but no hardener.

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27-11-2014 дата публикации

Apparatus for assembling blade sections

Номер: AU2013269764A1
Автор: NOT GIVEN
Принадлежит:

An apparatus for assembling blade sections for forming a blade is provided. The apparatus comprises at least two members (1, 2) movable with respect to each other, said members having respective opposing surfaces (2A, 2B) forming a pressing space for pressing outer surfaces of preassembled blade sections in a transition between the sections.

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21-08-2003 дата публикации

Reduction in the noise produced by a rotor blade of a wind turbine

Номер: AU0000764407B2
Принадлежит:

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26-06-2000 дата публикации

Reduction in the noise produced by a rotor blade of a wind turbine

Номер: AU0001974300A
Автор: WOBBEN ALOYS, ALOYS WOBBEN
Принадлежит:

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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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04-10-2012 дата публикации

Plasma Actuated Vortex Generators

Номер: US20120248072A1
Принадлежит: Lockheed Martin Corp

A plasma-actuated vortex generator arrangement includes a plurality of spaced-apart vortex generators, and a plasma actuator distributed amongst the plurality of vortex generators.

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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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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

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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06-06-2013 дата публикации

Fluid interface device and method

Номер: US20130142663A1
Автор: Theodore M. Garver
Принадлежит: ECOLOGICAL ENERGY Co

A fluid interface device, such as an airfoil assembly, can include a device structure and at least one moveable band oriented such that the band moves in a direction of fluid flow. The at least one moveable band can be supported on the device structure such that an outer surface of the moveable 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 have a cross section that includes first and second boundary layer collision points disposed along one side of the device structure with at least one of said first and second boundary layer collision points formed by the endless band. An airplane, a wind turbine and a method are also included.

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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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23-01-2014 дата публикации

Wind Turbine Rotor Blade Components And Methods Of Making Same

Номер: US20140023514A1
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.

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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

Method For Establishing Of Erosion Resistant Surface Part On A Wind Turbine Blade, Method For Creation Of An Erosion Resistant Coating, Wind Turbine Blade With Retrofitted Coating In And Around Areas Where The Blade Is Especially Exposed To Erosion Damages, Coating For Mounting On A Wind Turbine Blade's Front Edge

Номер: US20190001534A1
Автор: Kim TANGAGER
Принадлежит: Blade Repair Solutions IVS

This invention relates to a wind turbine blade with retrofitted coating in and around areas where the blade is especially exposed to erosion damages, which is established by the coating including a glue layer, a fiber reinforced polymer layer and one or more non-reinforced polymer layers over the fiber reinforced layer, since the polymer layers stretch themselves out over the fiber reinforced layer and includes areas of the wind turbine blade's surface, which are less exposed to erosion damages. A method for creation of such a wind turbine blade and creation of such a coating and the coating itself, is also established with the invention.

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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

Spar cap for a wind turbine rotor blade formed from pre-cured laminate plates of varying thicknesses

Номер: US20170002791A1
Принадлежит: General Electric Co

A spar cap for a rotor blade of a wind turbine may generally include an assembly of pre-cured laminate plates stacked on one top of the other, with the assembly including an outermost pre-cured plate, an innermost pre-cured plate positioned opposite the outermost pre-cured plate and a plurality of intermediate pre-cured plates stacked directly between the outermost and innermost pre-cured plates. The outermost pre-cured plate may be configured to be positioned adjacent to an inner surface of a body shell of the rotor blade. In addition, the outermost pre-cured plate may define a plate thickness that differs from a plate thickness defined by the innermost pre-cured plate by at least 50%.

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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

Wind blade component bonding fixture

Номер: US20200003176A1
Автор: Michael Villar
Принадлежит: TPI Composites Inc

The disclosed subject matter provides a system and method for facilitating bonding of various turbine blade components, including trailing edge inserts, or flatbacks, to the trailing edge of a wind turbine blade. The system disclosed herein ensures a consistent force is applied from root to top thereby preventing defects, e.g. paste voids, from forming. Additionally, a consistent bonding gap can be achieved due to the consistent application of force from the root to tip of the blade.

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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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02-01-2020 дата публикации

Modular System for Transporting Wind Turbine Blades

Номер: US20200003186A1
Автор: VAN DER ZEE Jacobus J
Принадлежит:

A modular system for transporting wind turbine blades in at least two different spatial arrangements comprising two or more root end transport frames having a height H for supporting the root end, wherein H Подробнее

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

BLADE ICING STATE IDENTIFICATION METHOD AND APPARATUS FOR WIND GENERATOR SET

Номер: US20190003461A1
Автор: Yang Jianjun, Yu Chi, ZHOU JIE
Принадлежит:

A blade icing state identification method and apparatus for a wind generator set are disclosed. The method includes setting a preset wind speed threshold and a preset rotating speed threshold, and setting the preset rotating speed threshold as a lower limit value of a maximum limited rotating speed of the wind generator set operating under a limited power condition; comparing a current wind speed and a current rotating speed of the wind generator set with the preset thresholds respectively; progressively increasing a blade icing possibility index when the current wind speed is greater than the preset wind speed threshold and the current rotating speed of the wind generator set is smaller than the preset rotating speed threshold, and otherwise, progressively decreasing the blade icing possibility index; and determining that blades are in an icing state when the blade icing possibility index is greater than a preset index. 1. A blade icing state identification method for a wind generator set , comprising:setting a preset wind speed threshold and a preset rotating speed threshold, and setting the preset rotating speed threshold as a lower limit value of a maximum limited rotating speed of the wind generator set operating under a limited power condition;obtaining a current wind speed and a current rotating speed of the wind generator set, and comparing the current wind speed and the current rotating speed of the wind generator set with the preset wind speed threshold and the preset rotating speed threshold respectively;progressively increasing a blade icing possibility index when the current wind speed is greater than the preset wind speed threshold and the current rotating speed of the wind generator set is smaller than the preset rotating speed threshold, and otherwise, progressively decreasing the blade icing possibility index; anddetermining that blades are in an icing state when the blade icing possibility index is greater than a preset index,wherein the preset ...

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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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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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10-01-2019 дата публикации

FIBERS TREATED WITH POLYMERIZATION COMPOUNDS AND FIBER REINFORCED COMPOSITES MADE THEREFROM

Номер: US20190010310A1
Принадлежит:

Methods of making fiber reinforced composite articles are described. The methods may include treating fibers with a sizing composition that includes a polymerization compound, and introducing the treated fibers to a pre-polymerized composition. The combination of the treated fibers and pre-polymerized composition may then undergo a temperature adjustment to a polymerization temperature at which the pre-polymerized composition polymerizes into a plastic around the fibers to form the fiber-reinforced composite article. Techniques for introducing the treated fibers to the pre-polymerized composition may include pultrusion, filament winding, reactive injection molding (RIM), structural reactive injection molding (SRIM), resin transfer molding (RTM), vacuum-assisted resin transfer molding (VARTM), long fiber injection (LFI), sheet molding compound (SMC) molding, bulk molding compound (BMC) molding, a spray-up application, and/or a hand lay-up application, among other techniques. 1. A treated fiber for a fiber-reinforced composite article , the treated fiber comprising a fiber surface having a polymerization compound non-covalently contacting the fiber surface , {'br': None, 'sub': 'n', 'R—X-(I)'}, 'wherein the polymerization compound has the formulawherein n is an integer with a value of 1 to 5;R comprises a terminal moiety selected from the group consisting of a hydrogen and a hydrocarbyl group,X comprises a linking moiety that links the R moiety with one or more I moieties; and{'sub': 'n', '(I)comprises one or more polymerization initiator moieties, wherein each of the initiator moieties is capable of initiating a polymerization of one or more lactam monomers, and wherein each of the initiator moieties is the same or different.'}2. The treated fiber of claim 1 , wherein all of the polymerization compound on the fiber surface is exposed to a pre-polymerized composition that polymerizes to form a polymer matrix of the fiber-reinforced composite article.3. The treated ...

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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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14-01-2021 дата публикации

Method for connecting two wind turbine blade portions, method for producing a wind turbine, and method for connecting two molded portions

Номер: US20210010460A1
Принадлежит: Siemens Gamesa Renewable Energy AS

Provided is a method for connecting two wind turbine blade portions, the method including the steps of: a) providing) a first wind turbine blade portion and a second wind turbine blade portion, b) providing a plurality of first markers on the first blade portion and providing a plurality of second markers on the second blade portion, c) determining of target positions of the first markers and the second markers, d) aligning the wind turbine blade portions to each other and comparing actual positions of the first markers and the second markers with the target positions, and e) connecting the wind turbine blade portions together. Therefore, a shape accuracy of a wind turbine blade can be improved.

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10-01-2019 дата публикации

ENHANCED THROUGH-THICKNESS RESIN INFUSION FOR A WIND TURBINE COMPOSITE LAMINATE

Номер: US20190010918A1
Принадлежит:

A wind turbine composite laminate component and method for producing it is disclosed as initially assembling a laminated structure having at least two reinforced layers and a plurality of interleaf layers positioned adjacent to one of the at least two reinforced layers. Then placing the laminated structure into a mold where resin is sequentially and independently transferred into each of the plurality of interleaf layers. Then curing the transferred resin in the laminated structure to form a composite laminate component having the at least two reinforced layers, the plurality of interleaf layers, and cured resin. 1. A method for producing a composite laminate component for a wind turbine , comprising;assembling a laminated structure comprising at least two reinforced layers and a plurality of interleaf layers positioned adjacent to one of the at least two reinforced layers,placing the laminated structure into a mold,sequentially and independently transferring resin into each layer of the plurality of interleaf layers, andcuring the transferred resin in the laminated structure to form a composite laminate component comprising the at least two reinforced layers, the plurality of interleaf layers, and cured resin.2. The method of claim 1 , wherein the plurality of interleaf layers comprises a continuous fiber mat having an intrinsic permeability in the range of about 1×10to about 1×10squared meters.3. The method of claim 1 , wherein assembling the laminated structure further comprises placing a non-porous peel ply section adjacent a bottom of an entrance portion of the plurality of interleaf layers.4. The method of claim 1 , wherein assembling the laminated structure further comprises alternately placing each of the at least two reinforced layer adjacent the plurality of interleaf layers.5. The method of claim 1 , wherein assembling the laminated structure further comprises placing each of the at least two reinforced layers adjacent to each other.6. The method of claim ...

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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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10-01-2019 дата публикации

System and Method for Manufacturing Wind Turbine Rotor Blades for Simplified Installation and Removal

Номер: US20190010920A1
Автор: Neumann Ulrich Werner
Принадлежит:

The present disclosure is directed to systems and methods for manufacturing a wind turbine rotor blade that can be easily lifted and lowered to and from a rotor installed atop a tower. The method includes providing a plurality of root inserts for a blade root of the blade and securing at least one cylindrical member to one of the root inserts such that the cylindrical member is substantially perpendicular with the root insert. The method also includes arranging the root inserts in a blade mold of the blade and forming a blade shell with the plurality of root inserts laminated therein. The method may further include securing at least one attachment component within each of the cylindrical members so as to provide an attachment location for a pulley cable used to lift and lower the rotor blade to and from the rotor installed atop the tower. 1. A method for retrofitting a rotor blade for lifting and lowering to and from a rotor installed atop a tower , the rotor blade having a blade root with a plurality of circumferentially-spaced root bolts , each of the root bolts secured within a tubular root insert , the method comprising: installing the cylindrical member within the blade root such that the cylindrical member is substantially perpendicular with one of the root inserts; and,', 'securing the attachment component within the installed cylindrical member, the attachment component providing an attachment location for a pulley cable used to lift and lower the rotor blade to and from the rotor installed atop the tower., 'installing at least one lifting device within the blade root, the lifting device comprising a cylindrical member and an attachment component, wherein installing the at least one lifting device further comprises2. The method of claim 1 , wherein installing the cylindrical member within the blade root further comprises:machining an opening in an interior wall of the blade root of the rotor blade; andinserting the cylindrical member in the opening.3. The ...

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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

Wind blade component bonding fixture

Номер: US20220034294A1
Автор: Michael Villar
Принадлежит: TPI Composites Inc

The disclosed subject matter provides a system and method for facilitating bonding of various turbine blade components, including trailing edge inserts, or flatbacks, to the trailing edge of a wind turbine blade. The system disclosed herein ensures a consistent force is applied from root to top thereby preventing defects, e.g. paste voids, from forming. Additionally, a consistent bonding gap can be achieved due to the consistent application of force from the root to tip of the blade.

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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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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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