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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 188. Отображено 100.
28-03-2013 дата публикации

ROLLER BEARING, RETAINER SEGMENT, SPACER AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR

Номер: US20130078098A1
Автор: HIOKI Shoichi, NAKAMIZO Eiichi, OMOTO Tatsuya, SAKAGUCHI Tomoya, SASABE Mitsuo
Принадлежит:

A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part. 17-. (canceled)8. A roller bearing comprising:an outer ring;an inner ring;a plurality of rollers arranged between said outer ring and said inner ring; anda plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding said roller, and a connection part extending in a circumferential direction so as to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between said outer ring and said inner ring, whereinsaid column part is positioned at circumferential each end of said retainer segment,a circumferential outer side of said column part positioned at said end is provided with an expansion part expanding in the circumferential direction and a circumferential inner side thereof is provided with a recess recessed in the circumferential direction.9. The roller bearing according to claim 8 , whereinsaid expansion part has a roughly arc configuration.10. The roller bearing according to claim 8 , whereinsaid recess has substantially the same configuration as that of said ...

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Номер записи: 1
11-07-2013 дата публикации

WIND TURBINE

Номер: US20130177419A1
Автор: Zaehr Matthias
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

The invention relates to a wind turbine, comprising a hub, at least one blade, said blade being pivotably installed at said hub, at least one pitch bearing, said pitch bearing having an inner bearing ring and an outer bearing ring, said inner bearing ring having an inner wall in radial direction and a first end and a second end in axial direction and at least one reinforcing element to enhance the stiffness of said pitch bearing, wherein the reinforcing element is arranged adjoining the inner wall of the inner bearing ring. 1. A wind turbine , comprising:a hub,at least one blade, said blade being pivotably installed at said hub,at least one pitch bearing,said pitch bearing having an inner bearing ring and an outer bearing ring, said inner bearing ring having an inner wall in radial direction and a first end and a second end in axial direction,and at least one reinforcing element to enhance the stiffness of said pitch bearing,wherein the reinforcing element is arranged adjoining the inner wall of the inner bearing ring.2. The wind turbine according to claim 1 ,wherein the reinforcing element is mounted to the inner wall of the inner bearing ring.3. The wind turbine according to claim 1 ,wherein the inner wall of the inner bearing ring and the reinforcing element have a contact area between them,wherein an inner ring gear used for pitch rotation is disposed at the inner radial wall of the inner bearing ring, andwherein the inner ring gear and the contact area are disposed next to each other in axial direction of the inner bearing ring.4. The wind turbine according to claim 3 ,wherein the contact area and the inner ring gear cover the entire axial length of the inner radial wall of the inner bearing ring from its first end to its second end.5. The wind turbine according to claim 1 ,wherein the reinforcing element does not extend in axial direction of the inner bearing ring beyond the first end and the second end of the inner bearing ring respectively.6. The wind ...

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Номер записи: 2
01-08-2013 дата публикации

WIND TURBINE WITH BEARING SUPPORT

Номер: US20130195632A1
Автор: Demtrôder Jens
Принадлежит: VESTAS WIND SYSTEMS A/S

In order to provide a wind turbine generator with a shaft and a bearing system which bearing system, e.g., using less material or using material which is relatively cheaper or which is not needed to have the same strength in comparison with some other solutions, there is disclosed a wind turbine generator with a bearing system including a lockable connection comprising a bearing surface and a support surface which surfaces are engaged when the lockable connection is locked and where forces from the shaft are transferred via the bearing and into the support through the bearing surface and wherein a support angle of the support surface, relatively to a shaft plane formed by rotating the shaft around a first axis, which first axis is perpendicular to the centre axis and which first axis is comprised in a vertical plane, is ranging from and including 5 degrees to and including 70 degrees. 1. A wind turbine comprising a bearing system , the bearing system comprising:a bearing for bearing a shaft having a centre axis, the bearing comprising at least one bearing surfacea support for supporting the bearing, the support comprising at least one support surfacea lockable connection between said bearing and said support, where the lockable connection comprises the at least one bearing surface and comprises the at least one support surface, wherein the support surface is directly and rigidly engaged with and supports the bearing surface when the lockable connection is locked and where forces from the shaft are transferred via the bearing and into the support through said bearing surface being engaged with said support surface, and where said lockable connection ensures a fixed distance between the bearing and the support by the surfaces being directly and rigidly engaged, and wherein a support angle of said support surface, relatively to a shaft plane formed by rotating the shaft around a first axis, which first axis is perpendicular to the centre axis and which first axis is ...

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Номер записи: 3
08-08-2013 дата публикации

HYBRID WIND TURBINE BLADE BEARING

Номер: US20130202232A1
Автор: Brubaker Eric L., Mueller Thomas G., Reedman Adam V.C.
Принадлежит:

Wind turbine blade pitch bearing device () adapted for rotational support of a turbine blade (), having a first bearing unit () and a second bearing unit () coaxial to the first bearing unit. According to the invention, the first bearing unit () and the second bearing unit () are of different bearing types. By using two different bearing types, one bearing can be optimized for small and quick rotations and the other type can be optimized for larger and slower rotations. 1. A wind turbine blade pitch bearing device adapted for rotational support of a turbine blade , comprising:a first bearing unit anda second bearing unit, the first bearing unit being mounted coaxially around the second bearing unit, and whereinthe first bearing unit and second bearing unit are of different bearing types, a first type being adapted for relatively smaller and faster rotational movements of the blade than a second type.2. The bearing device according to claim 1 , wherein the first bearing unit comprises first and second bearings axially spaced apart in relation to each other.3. The bearing device according to claim 1 , the second bearing unit comprises first and second bearings axially spaced apart in relation to each other.44567. The bearing device according to claim 1 , wherein the second bearing unit ( claim 1 , ) is fixedly attached to the first bearing unit ( claim 1 , ).5. The bearing device according to claim 1 , wherein the first bearing unit is adapted to be fixedly mounted to the hub unit of the wind turbine and the second bearing unit is adapted to slide on a shaft fixedly mounted to a blade of the wind turbine.6. The bearing device according to claim 1 , wherein the first bearing unit is adapted for rotational movements of up to an angle of 15 degrees.7. The bearing device according to claim 1 , wherein the first bearing unit comprises an elastomeric bearing.8. The bearing device according to claim 1 , wherein the second bearing unit comprises a sliding bearing.9. The ...

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Номер записи: 4
05-09-2013 дата публикации

Transmission lubricant

Номер: US20130229016A1
Автор: Christoph Wincierz, Juergen Gebhardt, Micahel Mueller, Reza Ghahary, Roland Schweder, Thilo Krapfl, Thomas Schimmel, Torsten Stoehr
Принадлежит: Evonik RohMax Additives GmbH

The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.

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Номер записи: 5
19-09-2013 дата публикации

Bearing and wind turbine containing the bearing

Номер: US20130243598A1
Автор: Alexander De Vries, Armin Olschewski, Arno Stubenrauch, Bernie Van Leeuwen, Sebastian Ziegler
Принадлежит: SKF AB

A bearing adjusts an angle of attack of a rotor blade of a wind turbine according and includes first and second bearing rings that are rotatable relative to each other. The first bearing ring includes, as a slider or translator of a linear motor, a plurality of magnetic field sources disposed adjacently around at least a part of its circumference. The magnetic field sources are disposed such that each two adjacently disposed magnetic field sources generate a magnetic field with alternating polarity. The second bearing ring includes, as a stator of the linear motor, a group of at least two coils disposed adjacently around at least part of its circumference. A wind turbine includes a rotor coupled to at least one rotor blade via such a bearing, which enables the angle of attack of the rotor blade to be adjusted during operation.

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Номер записи: 6
24-10-2013 дата публикации

Wind turbine with oil lubrication

Номер: US20130280039A1
Автор: Pasteuning Jan Willem
Принадлежит: XEMC Darwind B.V.

Lubrication method and wind turbine comprising a rotor with a hub supported by a main bearing with two opposite bearing races coaxially spaced by rotatably fitted bearing rollers in a lubrication area which is sealed by oil sealing rings between the bearing races. The lubrication area comprises one or more oil inlets operatively connected to an oil supply, and one or more oil outlets. The vertical distance between the outlet(s) and the lowest point of the lubrication area is 0-0.2 times the inner diameter of the outer bearing race. The inlet (s) and the oil supply are configured to supply an oil flow not exceeding the drain capacity of the one or more outlets. 1. A wind turbine comprising a rotor with a hub supported by a main bearing with two opposite bearing races coaxially spaced by rotatably fitted bearing rollers in a lubrication area which is sealed by oil sealing rings between the bearing races , wherein the lubrication area comprises one or more oil inlets operatively connected to an oil supply , and one or more oil outlets , the vertical distance between at least one of the outlets and the lowest point of the lubrication area being 0-0.2 times the inner diameter of the outer bearing race , wherein the one or more inlets and the oil supply are configured to supply an oil flow through the lubrication area by gravity not exceeding the drain capacity of the one or more outlets.2. The wind turbine according to wherein at least one of the outlets is arranged and configured to substantially maximize outflow of the lubricant oil by gravity.3. The wind turbine according to wherein the outer bearing race is stationary and at least one of the outlets is positioned in a bottom region of the outer bearing race below the lowest point of the inner race claim 1 , or wherein the inner bearing race is stationary and at least one of the outlets is positioned in the inner race in a region radially opposite to said bottom region of the outer race.4. The wind turbine according ...

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Номер записи: 7
28-11-2013 дата публикации

ASSEMBLY FOR EXTRACTING THE ROTATIONAL ENERGY FROM THE ROTOR HUB OF THE WIND TURBINE OF A WIND TURBINE SYSTEM

Номер: US20130315736A1
Автор: Frank Hubertus
Принадлежит: IMO Holding GmbH

An assembly for absorbing torques at the rotor hub of a wind turbine whose rotation axis extends toward the wind, and for diverting axial and radial forces and tilting moments into a load-bearing structure by means of a main bearing, and for extracting rotational energy from the rotor hub by means of a gear whose planet gears mesh with a sun gear and a ring gear, and comprising a generator connectable to an output side of the planetary gear, and operates to convert the rotational energy into electrical energy, wherein the planetary gear is integrated with a main bearing of a wind power plant, and the ring gear of the planetary gear is driven by the rotor hub, while the planet gear carrier is fixed to the chassis of a gondola of the power plant, and the sun gear of the planetary gear mechanism is drivingly connected to the generator, and the generator does not protrude radially beyond the rotor bearing or main bearing. 1. An assembly comprising a connection for a rotor hub of a wind turbine of a wind power plant having a rotor rotation axis which points generally in a direction of wind during operation , for the purpose of absorbing forces and torques occurring there , and comprising at least one or main bearing for diverting axial and radial forces and tilting moments into a load-bearing structure of the wind power plant , a device for extracting the rotational energy from the wind turbine the device comprising a single-stage planetary gear mechanism integrated with the main bearing and planet gears mounted on a planet gear carrier and adapted to simultaneously mesh with a sun gear and a ring gear , and a generator connected to an output side of the planetary gear mechanism and adapted to convert the rotational energy into electrical energy , wherein an inner ring of the main bearing of the wind power plantis provided at one end face thereof a connection surface for connection to the rotor hub of the wind power plant;is provided at its outer face with at least one ...

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Номер записи: 8
19-12-2013 дата публикации

ROTATING SYSTEM FOR A WIND TURBINE

Номер: US20130336766A1
Автор: Demtrôder Jens, Nielsen Thomas Korsgaard, Schjøtt Simon
Принадлежит: VESTAS WIND SYSTEMS A/S

A rotating system (), such as a gear system or a bearing supporting system, for a wind turbine is disclosed. The rotating system () comprises a housing () arranged to substantially enclose the rotating system (), said housing () defining a lubricant drain () towards the exterior of the housing (), and a rotating part () accommodated in an interior part of the housing () in a manner which allows rotational movements of the rotating part () relative to the housing (), and in such a manner that lubricant can be contained between the housing () and the rotating part (). The housing () and/or the rotating part () is/are arranged to provide a pumping action forcing lubricant arranged in an interior part of the housing () towards the lubricant drain () during rotational movements of the rotating part () relative to the housing (). Excess lubricant is quickly and efficiently removed from the rotating part () and led to the lubricant drain (). Thereby a slip stream of lubricant is reduced. Accordingly, the friction occurring in the rotating system () is considerably reduced, and the efficiency of the rotating system () is therefore increased. Simultaneously, the outer dimensions of the rotating system () can be minimised because it is not necessary to generally increase the distance between the rotating part () and the housing () in order to avoid a lubricant slip stream. Furthermore, a method for operating such a rotating system () is disclosed. 1. A rotating system for a wind turbine , the rotating system comprising:a housing arranged to substantially enclose the rotating system, said housing defining a lubricant drain towards the exterior of the housing, anda rotating part accommodated in an interior part of the housing in a manner which allows rotational movements of the rotating part relative to the housing, and in such a manner that lubricant can be contained between the housing and the rotating part, wherein the housing and/or the rotating part is/are arranged to ...

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Номер записи: 9
26-12-2013 дата публикации

BEARING REPLACEMENT METHOD AND TOOLS FOR ROTATING MACHINE

Номер: US20130340256A1
Автор: ENDO Masaaki, FUJIGAKI Tetsuo, IIZUKA Motonobu, MIZUTANI Shuji, SERITA Shogo, SHINDEN Masakazu, TSUCHITANI Osamu, YASUI Yoshihiro
Принадлежит:

A bearing replacement method for a rotating machine of the present invention includes the steps of: when at least one bearing of a rotating machine is to be replaced with a new one, mounting at an end portion of the rotating machine a plurality of bendable arms for removing a first bearing covering part, a power supply unit outer frame, and a slipring, respectively; removing with the arms the first bearing covering part, the power supply unit outer frame, and the slipring, respectively; and thereafter replacing the at least one bearing with a new one. 1. A bearing replacement method for a rotating machine , the method comprising the steps of:when at least one bearing of a rotating machine is to be replaced with a new one, mounting at an end portion of the rotating machine a plurality of bendable arms for removing a first bearing covering part, a power supply unit outer frame, and a slipring, respectively;removing with the arms the first bearing covering part, the power supply unit outer frame, and the slipring, respectively; andthereafter replacing the at least one bearing with a new one.2. The bearing replacement method for a rotating machine according to claim 1 , whereinthe at least one bearing comprises two bearings, one being disposed on a drive end on which the rotating machine is connected to a prime mover and the other being disposed on a non-drive end opposite to the drive end,the bearing on the non-drive end is to be replaced with a new one after the first bearing covering part, the power supply unit outer frame, and the slipring are removed with the arms, andthe bearing on the drive end is to be replaced with a new one after a bendable arm for removing a second bearing covering part is mounted on an end portion of the rotating machine and the second bearing covering part is removed with the arm.3. The bearing replacement method for a rotating machine according to claim 2 ,wherein the first bearing covering part, the second bearing covering part, the power ...

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Номер записи: 10
26-12-2013 дата публикации

ASSEMBLY AS BEARING ARRANGEMENT FOR THE ROTATIONAL MOUNTING OF MACHINE AND PLANT PARTS

Номер: US20130343688A1
Автор: Frank Hubertus
Принадлежит: IMO Holding GmbH

A bearing arrangement for rotational mounting of machine and plant components, comprising a nose ring, a bearing ring and a retaining ring of a large rolling bearing serving as a main mounting of a rotor of a wind power installation, and further comprising a plurality of tapered-roller rolling bearing arrays, particularly at least two tapered-roller rolling element arrays, which roll circulatingly about a main axis of rotation about the axial direction, and further comprising at least one cylindrical roller array arranged perpendicularly to the tapered-roller rolling element arrays and operative to support radial force components, wherein the plurality of tapered-roller rolling bearing arrays for supporting all axial force components are arranged parallel to one another, and planes of the tapered-roller rolling element arrays in which the tapered-roller rolling element arrays rotate about the axial main axis upon rotational movement of the mounted part do not intersect. 1. A bearing assembly for rotational mounting of machine and plant components , the assembly comprising a nose ring , a support ring , and a retaining ring of a rolling bearing serving as a main mounting of a rotor of a wind power installation , and further comprising a plurality of tapered-roller rolling bearing arrays , particularly at least two tapered-roller rolling element arrays , which roll circulatingly about a main axis of rotation about an axial direction , and further comprising at least one rolling bearing array comprising a cylindrical roller array arranged perpendicularly to said tapered-roller rolling element arrays and operative to support radial force components ,wherein the plurality of tapered-roller rolling bearing arrays support all axial force components and are arranged parallel to one another, and planes of said tapered-roller rolling element arrays, in which said tapered rolling element arrays rotate about the axial main axis upon rotational movement of the mounted part, do ...

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Номер записи: 11
26-12-2013 дата публикации

Wind turbine and a method of operating a wind turbine

Номер: US20130343888A1
Автор: Poul Spaerhage Frokjaer, Thomas Korsgaard Nielsen
Принадлежит: Vestas Wind Systems AS

The invention provides a wind turbine comprising a rotatable drive train including at least one bearing ( 3 ) and a pump ( 4 ) for supply of a lubricant to the bearing ( 3 ). The wind turbine further comprises a controller for performing closed loop control of the pump ( 4 ) to provide an amount of lubricant which varies depending on an actual state of operation.

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Номер записи: 12
09-01-2014 дата публикации

Tapered Roller Bearing

Номер: US20140010655A1
Автор: HOFMANN Matthias
Принадлежит: AKTIEBOLAGET SKF

A roller bearing that includes an outer ring, a first inner ring, and a first sealing ring that is disposed axially adjacent of the outer ring is provided. The roller bearing also includes a first retaining ring that is attached to the outer ring. The first sealing ring is fixed between the first retaining ring and a first clamping ring. 120-. (canceled)21. A roller bearing comprising:an outer ring,a first inner ring,a first sealing ring disposed axially adjacent of the outer ring, whereina first retaining ring is attached to the outer ring, and whereinthe first sealing ring is fixed between the first retaining ring and a first clamping ring.22. The roller bearing according to claim 21 , wherein the first retaining ring is attached to the outer ring via a screw connection.23. The roller bearing according to claim 21 , wherein the first clamping ring and the first retaining ring are attached to the outer ring by a common screw connection.24. The roller bearing according to claim 21 , wherein the first retaining ring is attached to the outer ring by screws that also attach the outer ring to another structure.25. The roller bearing according to claim 24 , wherein the another structure is a bearing housing.26. A tapered roller bearing comprising:an outer ring,a first inner ring,a first sealing ring disposed axially adjacent of the outer ring, whereina first retaining ring is attached to the outer ring, and whereinthe first sealing ring is fixed between the first retaining ring and a first clamping ring.27. A wind turbine comprising:a rotor shaft, and{'claim-ref': {'@idref': 'CLM-00021', 'claim 21'}, 'a tapered roller bearing according to rotatably supporting the rotor shaft.'}28. The wind turbine according to claim 27 , further comprising a bearing housing claim 27 , wherein the bearing housing is directly connected to the outer ring of the tapered roller bearing by screws.29. A tapered roller bearing comprising:an outer ring, wherein a radially-inner surface of the ...

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Номер записи: 13
09-01-2014 дата публикации

AXIAL-RADIAL ROLLING CONTACT BEARING, IN PARTICULAR FOR SUPPORTING ROTOR BLADES ON A WIND TURBINE

Номер: US20140010660A1
Автор: Handreck Thomas
Принадлежит:

The invention relates to an axial-radial rolling contact bearing, in particular for supporting rotor blades () on a wind turbine (), comprising a first bearing ring () and a second bearing ring (), which form an inner ring and an outer ring, and comprising a radial rolling contact bearing row () and a plurality of axial rolling contact bearing rows between the first bearing ring () and the second bearing ring (). According to the invention, at least four axial rolling contact bearing rows (a, b, c, d) which are arranged at a distance from each other in the axial direction (x) are provided, said radial rolling contact bearing row () being arranged between the second axial rolling contact bearing row (b) and the third axial rolling contact bearing row (c) in the axial direction (x). 1. An axial-radial roller bearing for mounting rotor blades on a wind-power plant , the roller bearing comprising:a first bearing ring forming a race and centered on an axis;a second bearing ring forming another race coaxial to the race formed by the first bearing ring;a radial roller bearing with rollers as rolling elements and between the first and second bearing rings; andfirst, second, third, and fourth axial roller bearings having rollers serving as rolling elements between the first and second bearing rings and at a spacing from each other in an axial direction, the radial roller bearing being between the second and third axial roller bearings in the axial direction.2. The axial-radial roller bearing according to claim 1 , wherein there are exactly five rows claim 1 , comprising the four axial roller bearings and the radial roller bearing.3. The axial-radial roller bearing according to claim 2 , wherein the first bearing ring is divided into two bearing ring segments between the second axial roller bearing and the third axial roller bearing claim 2 , and the second bearing ring is divided into a total of three segments between the first and second axial roller bearings and between ...

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Номер записи: 14
23-01-2014 дата публикации

ROTOR BEARING FOR A WIND POWER GENERATING PLANT

Номер: US20140023305A1
Автор: Frank Hubertus
Принадлежит: IMO Holding GmbH

A rolling bearing, particularly a rotor bearing, or main bearing, for a wind power generating plant, the bearing having at least two mutually concentric rings separated from each other by a gap in which one or more rows of rolling elements roll along raceways on both rings, such that the two rings are rotatable in mutually opposite directions about their common axis, wherein each ring has at least one connection surface for connection to a foundation, wherein the connection surfaces extend parallel to one another and are passed through approximately perpendicularly by a plurality of fastening bores for receiving fastening bolts extending through them or screwed into them, wherein the raceway of at least one rolling-element row is formed on a part separate from the ring concerned and is pushed away from the ring concerned in a direction perpendicular to the connection surfaces, by at least one resilient element. 1. A rolling bearing , preferably for a wind power generating plant , particularly a rotor bearing or main bearing for a wind power generating plant , the bearing having at least two mutually concentric connection rings separated from each other by a gap in which one or more rows of rolling elements roll along raceways on the rings , such that the two rings can be rotated in opposite directions about their common axis , wherein each ring has at least one planar , annular , preferably raised connection surface for connection to a machine part , plant part , chassis or foundation , wherein the connection surfaces extend parallel to each other and are passed through generally perpendicularly by a plurality of fastening bores for receiving fastening bolts that pass through or are screwed into them , wherein a raceway of at least one of the rolling-element rows is formed on a raceway ring that is separate from the connection ring concerned , and is pushed away from the connection ring concerned , in a direction perpendicular to the connection surfaces , by a ...

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Номер записи: 15
27-02-2014 дата публикации

ROTATING SYSTEM FOR A WIND TURBINE

Номер: US20140056709A1
Автор: Betran Palomas Jaume
Принадлежит: ALSTOM RENOVABLES ESPAÑA, S.L.

It includes first and second mutually rotatable elements and a bearing arrangement associated therewith including at least one single film-like chamber formed between the first and second elements, a number of fluid injectors for injecting fluid into the hydraulic chamber and a control device for separately controlling the pressure of the fluid injected by the injectors depending at least on loads on the first element or the second element. A driving device is also provided for driving at least one of said elements in rotation, including hydraulic chambers which volume is defined by the relative position of the first and second elements and a pump device for filling the chamber with fluid to rotate the elements. 1. A rotating system for a wind turbine , comprising:first and second mutually rotatable elements and a hydraulic bearing arrangement associated with the first and second mutually rotatable elements,wherein the hydraulic bearing arrangement includes at least one hydraulic chamber formed between the first and second mutually rotatable elements, andwherein the hydraulic bearing arrangement further includes a number of fluid injectors for injecting fluid into the hydraulic chamber and a control device for separately controlling the pressure of the fluid injected by the injectors depending at least on loads on the first element or the second element.2. The rotating system of claim 1 , wherein the hydraulic chamber includes a single film-like chamber formed between the first element and the second element for facilitating their relative rotation.3. The rotating system of claim 1 , wherein a number of injectors are distributed along the entirety of a perimeter of the first element and the second element.4. The rotating system of claim 1 , wherein the control device is configured for controlling at least one hydraulic pump associated with at least one of the injectors.5. The rotating system of claim 4 , wherein each of the injectors is configured for adjusting a ...

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Номер записи: 16
06-03-2014 дата публикации

Planetary Transmission of a Wind Turbine

Номер: US20140066245A1
Автор: Buch Stephan, Steinhaus Frank
Принадлежит:

A planetary transmission of a wind turbine includes a ring gear which has an internal toothing and at least one planetary gear which has an external toothing that meshes with the internal toothing of the ring gear. The planetary gear is rotatably supported on an axle by a bearing assembly. The bearing assembly includes at least one outer ring having a radially-outwardly-protruding radial projection and at least one set of rolling elements that roll on the outer ring. The planetary gear has a bore and a recess in the region of an axial end, which recess widens the bore. The outer ring is disposed in the bore of the planetary gear such that the radial projection of the outer ring engages into the recess of the planetary gear. 1. A planetary transmission of a wind turbine including a ring gear which has an internal toothing , and at least one planetary gear which has an external toothing which meshes with the internal toothing of the ring gear , whereinthe planetary gear is rotatably supported on an axle by a bearing assembly,the bearing assembly has at least one outer ring having a radially-outwardly-protruding radial projection and at least one set of rolling elements, which roll on the outer ring,the planetary gear has a bore, and a recess in the region of an axial end, which recess radially widens the bore, andthe outer ring is disposed in the bore of the planetary gear such that the radial projection of the outer ring engages into the recess of the planetary gear.2. The planetary transmission according to claim 1 , wherein the outer ring is attached to the planetary gear.3. The planetary transmission according to claim 1 , wherein the radial projection of the outer ring is formed as one-part with the outer ring.4. The planetary transmission according to claim 1 , wherein the radial projection of the outer ring is disposed in the region of an axial end of the outer ring.5. The planetary transmission according to claim 1 , wherein the radial projection of the outer ...

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Номер записи: 17
27-03-2014 дата публикации

SLIDE BEARING AND METHOD TO PERFORM SERVICE AT THE SLIDING BEARING

Номер: US20140086516A1
Автор: Pedersen Bo, Thomsen Kim
Принадлежит:

A sliding bearing and a service method of performing a service of a sliding bearing are provided. The sliding bearing includes a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. In addition, the bearing includes an opening in the first bearing shell, wherein the opening is arranged such that the bearing pads are visible through the opening. 1. Sliding bearing , comprising:a first bearing shell,a second bearing shell,a plurality of bearing pads arranged between the first bearing shell and the second bearing shell,an opening in the first bearing shell,wherein the opening is arranged such that the bearing pads are visible through the opening.2. The sliding bearing according to claim 1 ,wherein the first bearing shell comprises an inner surface that faces the second bearing shell and an outer surface that faces away from the second bearing shell,wherein the opening is a through hole leading from the outer surface to the inner surface of the first bearing shell.3. The sliding bearing according to claim 1 , wherein at least one bearing pad is exchangeable claim 1 , and wherein the opening is arranged such that the at least one bearing pad is exchangeable through the opening.4. The sliding bearing according to claim 1 , wherein the first bearing shell is a stationary part of the sliding bearing.5. The sliding bearing according to claim 4 , wherein the opening in the first bearing shell is located in an area of the bearing where there is a minimum of load present in the bearing between the first bearing shell and the second bearing shell.6. The sliding bearing according to claim 4 , wherein the second bearing shell is a rotating part of the sliding bearing and wherein the bearing pads are connected to the rotating part while a surface of the first bearing shell is used as a sliding surface for the bearing pads.7. The sliding bearing according to claim 1 ,wherein the first ...

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Номер записи: 18
05-01-2017 дата публикации

PITCH ASSEMBLY FOR A WIND TURBINE ROTOR BLADE

Номер: US20170002795A1
Автор: Dasari Rajanikanth Reddy, Lakshminarayana Mohan Kumar, Nanukuttan Biju, Pathuvoth Dhanesh Chandrashekar, Samudrala Srikanth
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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Номер записи: 19
15-01-2015 дата публикации

COMPOSITE SLIDING BEARING AND WIND POWER GENERATING DEVICE USING THE SAME BEARING

Номер: US20150017000A1
Автор: HOSHI Masahiro, SATO Shoji
Принадлежит: FUJI ELECTRIC CO., LTD.

A composite sliding bearing is disclosed. The composite sliding bearing has an inner ring, formed of split rings halved by a center in an axial direction, which has V-section inclined surfaces formed on the outer diameter surfaces of the split rings, bearing pads disposed separately on the inclined surfaces of the split rings along the outer diameter surface of the inner ring, and an outer ring on the inner diameter surface of which is formed a V-section umbrella-shaped inclined surface corresponding to the outer diameter surface of the inner ring. A radial load and axial load applied to the bearing are supported by sliding the inner diameter surface of the outer ring on the sliding surfaces of the bearing pads in a condition in which the bearing pads are fluid lubricated. 1. A composite sliding bearing , comprising:an inner ring, including split structure ring bodies halved by a center in an axial direction, the inner ring having V-section inclined surfaces formed on the outer diameter surfaces of the ring bodies;bearing pads disposed separately on the inclined surfaces of split structure ring bodies along the outer diameter surface of the inner ring; andan outer ring disposed on the inner diameter surface, the outer ring having a V-section umbrella-shaped inclined surface corresponding to the outer diameter surface of the inner ring;wherein a radial load and an axial load applied to the bearing are supported by sliding the inner diameter surface of the outer ring on the sliding surfaces of the bearing pads when the bearing pads are fluid-lubricated.2. The composite sliding bearing according to claim 1 , wherein the bearing pads are tilting pads that enable a tilting movement in at least a direction of rotation of the bearing.3. The composite sliding bearing according to claim 1 , wherein a white metal or a resin overlay having a low frictional coefficient is applied to the sliding surfaces of the bearing pads.4. The composite sliding bearing according to claim 1 , ...

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Номер записи: 20
22-01-2015 дата публикации

BEARING FOR A WIND TURBINE

Номер: US20150023621A1
Автор: ERIKSEN UFFE, Michaelsen Claus, THYGESEN CLAUS
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A bearing for a wind turbine, the use of the bearing and a method to control the temperature of the bearing is provided. A bearing for a wind turbine comprises an inner ring and an outer ring. The inner ring and the outer ring are prepared and arranged in a way to rotate with respect to each other. The inner ring comprises at least one channel. The channel is prepared and arranged in a way that air flows along inside the channel so that excess heat of the inner ring is removed by the airflow in the channel. 1. A bearing for a wind turbine comprising:an inner ring and an outer ring, the inner ring and the outer ring prepared and arranged in a way to rotate with respect to each other; wherein the inner ring comprises at least one channel, the at least one channel prepared and arranged in a way that air flows along inside the at least one channel, so that excess heat of the inner ring is removed by the air flow in the at least one channel.2. The bearing for a wind turbine according to claim 1 , wherein the at least one channel is at least partially covered by a lid.3. The bearing for a wind turbine according to claim 1 , wherein the at least one channel comprises at least two openings that are used as an air inlet opening and as an air outlet opening claim 1 , to allow the air to flow through the at least one channel.4. The bearing for a wind turbine according to claim 1 , wherein an opening of the at least one channel is at least one of an open end of the at least one channel claim 1 , a hole in the wall of the at least one channel claim 1 , and a slot in the wall of the at least one channel.5. The bearing for a wind turbine according to claim 1 , wherein a ventilator is arranged at least at one opening of the at least one channel claim 1 , in a way that the ventilator moves air through the opening of the at least one channel and through the at least one channel.6. The bearing for a wind turbine according to claim 1 , wherein the inner ring comprises a plurality of ...

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Номер записи: 21
28-01-2016 дата публикации

ARRANGEMENT FOR MOUNTING COUNTER-ROTATABLE PARTS OF AN ENERGY SYSTEM

Номер: US20160025068A1
Автор: Dietz Volker, Frank Hubertus, Russ Erich
Принадлежит:

The invention relates to a rolling bearing arrangement (), preferably a large rolling bearing with a diameter of 0.5 or more, for mounting parts of an energy system, in particular as blade bearings for a wind turbine, comprising at least two relatively rotatable annular elements () arranged concentrically with one another and at least regionally inside one another, for connection to relatively rotatable parts of the energy system, wherein two relatively rotatable connecting elements () are separated from each other by a gap () and at least partially overlap each other in the radial direction, wherein, further, provided in the region of the gap () in radially overlapping regions of the annular connecting elements () are at least two rows of rolling elements (), each of which rolls along a respective two raceways () that overlap each other at least regionally in the radial direction, wherein one or more raceways () for rolling elements () are disposed in radially overlapping sections () in such fashion that the contact angle which the connecting line between the centers of the points of contact of a rolling element () with its two raceways makes with the ring plane is equal to or greater than 45°, such that such an axial rolling bearing serves to transmit predominantly axially acting force components, and wherein at least one additional bearing is provided for transmitting predominantly radially acting force components and has a contact angle of less than 45°, preferably 25° or less, particularly 10° or less, wherein any raceways for radial rolling bearings that are incorporated directly into the annular connecting elements () are, at most, ones having a maximum distance between them, perpendicular to the raceway surface, that is equal to or less than 25% of the largest distance perpendicular to the raceway surface between two raceways of an axial rolling-bearing row. 11263134363723234423171819201920171856171823. A rolling bearing arrangement ( , , , , , ) , ...

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Номер записи: 22
28-01-2016 дата публикации

Wind Turbine for Generating Electricity With Naval Technology

Номер: US20160025072A1
Автор: MONTEIRO DE BARROS Marcelo
Принадлежит:

The present invention relates to a horizontal-shaft/vertical-transmission wind turbine for generating electricity, which may be on-shore or off-shore, with reduced materials and structures in the nacelle, mast and foundation, which moves much of the equipment to the base of the mast, thereby reducing capex, enabling significant reductions in the operation and maintenance costs of the turbines, and reducing the cost of the installed power (installed MW) in a wind farm. The mechanical energy coming from the rotor is transmitted by a vertical shaft system () along the mast, which incorporates naval technology, and which is based on platforms () to neutralize harmonics and is connected to H/Vst () and V/Hmvst () transmissions, coupled using contraction and expansion joints (). In addition to this, the rotor orientation system (YAW control) (), which is connected to the torque control of the transmissions, the brake control and the blade pitch control, enables the rotor to be properly positioned. The invention enables radio communication between masts and with a control center over an aerial interface, which increases the reliability and general safety of the system. 1. Wind turbine for generation of electric power with naval technology built of a Nacelle connected in the upper part of a tower to a vertical shaft , which internally goes down to the lower end of the tower to connect to at least one generator in its lower end , situated in concrete foundation on the ground , characterized by an arrangement formed of the following components: 'i. one multi-blade axial rotor placed perpendicularly to the wind incidence and moved by the force of the wind, connected to the vertical shaft inside the tower by means of an upper transmission system H/Vst provided with torque sensors and active control system to change the propeller pitch according to the angle of the wind incidence, considering that the assembly is supported on a reinforced platform (skid);', 'a) one Nacelle ...

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Номер записи: 23
28-01-2016 дата публикации

SHAFT COUPLING DEVICE AND WIND POWER GENERATION DEVICE

Номер: US20160025073A1
Автор: FUJIWARA Hideki, OOTSUKA Kazushige
Принадлежит:

A shaft coupling device integrally rotatably connects an output shaft of a speed-up gear and an input shaft of a power generator to each other in a wind power generation device. The shaft coupling device includes a one-way clutch which is disposed between an inside rotating body and an outside rotating body along a radial direction, which integrally rotatably connects the inside rotating body and the outside rotating body to each other in a state in which a rotational speed of the output shaft exceeds a rotational speed of the input shaft, and breaks connection between the inside rotating body and the outside rotating body in a state in which the rotational speed of the output shaft is lower than the rotational speed of the input shaft. 1. A shaft coupling device which integrally rotatably connects an output shaft of a speed-up gear and an input shaft of a power generator to each other in a wind power generation device , said shaft coupling device comprising:an inside rotating body comprising a first connecting portion connected to a first shaft which is one of the output shaft and the input shaft;an outside rotating body comprising a second connecting portion connected to a second shaft which is the other of the output shaft and the input shaft, and disposed coaxially radially outside the inside rotating body; anda one-way clutch which is disposed between the inside rotating body and the outside rotating body along a radial direction, which integrally rotatably connects the inside rotating body and the outside rotating body to each other in a state in which a rotational speed of the output shaft exceeds a rotational speed of the input shaft, and which breaks connection between the inside rotating body and the outside rotating body in a state in which the rotational speed of the output shaft is lower than the rotational speed of the input shaft,wherein the one-way clutch comprises a plurality of engaging elements which are disposed along a circumferential direction ...

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Номер записи: 24
24-04-2014 дата публикации

ROLLING BEARING, NOTABLY FOR SHIP'S PROPELLER OR FOR WIND TURBINE

Номер: US20140112789A1
Автор: Bouron Cyril, Magny Jean-Baptiste, NOIROT Jean-Baptiste, Ovize Pascal
Принадлежит: AKTIEBOLAGET SKF

Rolling bearing () comprising an inner ring (), an outer ring (), at least one row of rolling elements which are arranged between raceways made on the rings () and an ring gear () fixed to one of the rings (). The ring gear () is formed of at least two independent gear segments () which are each provided on their inner or outer peripheral surface with a plurality of meshing means () and fixed only to one of either the inner or outer rings () of the rolling bearing (), the circumference of the ring gear () being substantially equal to the circumference of the combination of the independent gear segments. 11. A rolling bearing () comprising:{'b': '3', 'an inner ring (),'}{'b': '2', 'an outer ring (),'}{'b': 4', '2', '3', '2', '3, 'i': c,', 'c, 'at least one row of rolling elements () disposed between raceways () on the rings (, ) and'}{'b': 6', '20', '3', '2, 'a ring gear (, ) fixed to one of the inner and outer rings (, ), wherein'}{'b': 6', '20', '7', '12', '15', '18', '21', '24', '3', '2', '1, 'the ring gear (, ) is formed of at least two independent gear segments ( to ; to ; to ) each provided on one of an inner and outer peripheral surface with a plurality of meshing means and fixed to one of the inner and outer rings (, ) of the rolling bearing (), and wherein'}{'b': 6', '20, 'the circumference of the ring gear (, ) is substantially equal to the circumference of the combination of the independent gear segments.'}27121518212471215182124ee;ee;ee. The rolling bearing according to claim 1 , wherein each gear segment ( to ; to ; to ) further comprises an axial portion (to to to ) extending axially from a radial surface of the gear segment.3789101112151617187891011121516171832e,ee,e,ee;e,e,e,ef,f,f,f,ff;f,ff,f. The rolling bearing according to claim 2 , wherein each of the axial portions ( claim 2 , ) further comprises at least one radial drilling ( claim 2 , claim 2 , ) designed to cooperate with an attachment means to one of the inner and outer rings ( claim 2 , ). ...

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Номер записи: 25
24-04-2014 дата публикации

Rolling bearing, notably for ship's propeller or for wind turbine

Номер: US20140112790A1
Автор: Cyril Bouron, Jean-Baptiste Magny, Jean-Baptiste Noirot, Pascal Ovize
Принадлежит: SKF AB

Rolling bearing ( 1 ) comprising an inner ring ( 3 ), an outer ring ( 2 ), at least one row of rolling elements which are arranged between raceways formed on the rings ( 2, 3 ) and a ring gear ( 6 ) that has a circumference of less than 360° and is fixed to one of the rings ( 2 ). The ring gear ( 6 ) is formed of a single gear segment ( 7 ) which has a circumference substantially equal to the circumference of the ring gear ( 6 ) and is provided on its inner or outer peripheral surface with a plurality of meshing means ( 7 b ) and fixed only to one of either the inner or outer rings ( 3 ) of the rolling bearing ( 1 ).

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Номер записи: 26
29-01-2015 дата публикации

BEARING ARRANGEMENT OF A WIND TURBINE AND METHOD FOR ADJUSTING THE PRELOAD OF A BEARING ARRANGEMENT

Номер: US20150030277A1
Автор: Losert Wolfgang, PICK Mathias
Принадлежит:

To facilitate adjusting a bearing arrangement, particularly in a wind turbine, for different operating situations, the bearing arrangement has an adjusting device with which the bearing preload can be adjusted starting from a base preload. This can allow, for example signs of wear to be compensated, manufacturing tolerances or design inaccuracies to be corrected and in particular current loading states to be addressed. This design avoids the otherwise usual overdimensioning of the bearing arrangement, thereby increasing the efficiency of the wind turbine as well as the service life of the bearing arrangement. 1. A wind turbine bearing arrangement that is a main bearing for a rotor of a wind turbine , the arrangement comprising:a stator unit;a rotor unit, the stator unit and rotor unit are mounted on one another via a rotor-side bearing and a tower-side bearing, the rotor side bearing and the tower-side bearing being arranged spaced apart from one another and each having an inner bearing ring and an outer bearing ring, wherein a preload-circuit is formed by the rotor-side and tower-side bearings and by the stator unit, wherein a base preload is set during assembly via the preload-circuit, and wherein the inner bearing ring or outer bearing ring is as bearing clamping ring; andan adjusting device having a clamping ring via which a preload on the bearing clamping ring is changeable relative to a base preload such that a preload of the rotor-side bearing and tower-side bearings are adjustable via the preload-circuit.2. The wind turbine bearing arrangement as claimed in claim 1 , wherein the clamping ring has two ring parts claim 1 , the two ring parts being a retaining ring part and a clamping ring part claim 1 , the retaining ring part being clamped against the stator unit or the rotor unit by a fastening element and the clamping ring part being connected to the bearing clamping ring for transferring the preload.3. The wind turbine bearing arrangement as claimed in ...

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Номер записи: 27
29-01-2015 дата публикации

Toroidal and thrust bearing assembly

Номер: US20150030453A1
Автор: Christian Zang
Принадлежит: AKTIEBOLAGET SKF

The present invention relates to a bearing assembly for supporting a shaft having a toroidal roller bearing arrangement. The bearing assembly includes a first set of rolling elements formed of toroidal roller elements arranged in a first row and interposed between an inner ring providing a first inner raceway and an first outer ring providing a first outer raceway, and a thrust bearing arrangement having a second set of rolling elements arranged in a second row. The rolling elements are in contact with and arranged to cooperate with a second inner raceway and a second outer raceway for supporting axial loads and for restricting axial movement of the shaft in relation to the first outer ring. The present invention also relates to a method for manufacturing a bearing assembly for supporting a shaft.

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Номер записи: 28
25-02-2016 дата публикации

A hub and bearing system and a turbine comprising the hub and bearing system

Номер: US20160053746A1
Автор: Jascha Van Pommeren, Koos Welling, Laurens Verhulst
Принадлежит: SKF AB

A bearing system supports a plurality of turbine blades; each blade being rotatable about a pitch axis relative to a bearing system hub. The hub, comprising a plurality of static frames having a conical structure including two or more legs with openings therebetween, is connected to a main shaft of the turbine. Dynamic frames include a conical structure and two or more legs with openings therebetween. Legs of the static frame pass through openings between the legs of the corresponding dynamic frame, and legs of the dynamic frame pass through openings between legs of the corresponding static frame. Each dynamic frame is connected to one of the blades and is rotationally mounted to the corresponding static frame by a first bearing unit and a second bearing unit, distally arranged along the pitch axis from the first bearing unit. A central hub portion interconnects first shaft sections of the static frames.

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Номер записи: 29
26-02-2015 дата публикации

PITCH BEARING ASSEMBLY WITH STIFFENER

Номер: US20150056078A1
Автор: Pathuvoth Dhanesh Chandrashekar
Принадлежит: GENERAL ELECTRIC COMPANY

A pitch bearing assembly for a wind turbine including a stiffener is disclosed. The pitch bearing assembly includes an outer race and an inner race rotatable relative to the outer race. The inner race may define an inner circumference and may include a plurality of gear teeth around the inner circumference. Further, the pitch bearing assembly includes a stiffener having a body and at least one gear pinion configured with the body. The body extends at least partially around the inner circumference of the inner race and the at least one gear pinion engages a portion of the plurality of gear teeth. Further, the body remains fixed relative to the inner race while the gear pinions may freely rotate along with the inner race. 1. A pitch bearing assembly for a wind turbine , the pitch bearing assembly comprising:an outer race;an inner race rotatable relative to the outer race, the inner race defining an inner circumference, the inner race comprising a plurality of gear teeth around the inner circumference; and,a stiffener comprising a body and at least one gear pinion, the body extending at least partially around the inner circumference of the inner race, the at least one gear pinion being configured so as to engage a portion of the plurality of gear teeth.2. The pitch bearing assembly of claim 1 , wherein the inner circumference defines a volume within the inner race claim 1 , the body extending axially within at least a portion of the volume defined by the inner circumference.3. The pitch bearing assembly of claim 1 , wherein the body is ring-shaped and extends around the entire inner circumference of the inner race.4. The pitch bearing assembly of claim 3 , wherein the body comprises an opening configured to receive a pitch drive pinion of a pitch adjustment mechanism.5. The pitch bearing assembly of claim 1 , wherein the body includes a top portion claim 1 , a bottom portion claim 1 , and a web portion extending between the top and bottom portions.6. The pitch bearing ...

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Номер записи: 30
26-02-2015 дата публикации

ROLLER BEARING, RETAINER SEGMENT, SPACER AND MAIN SHAFT SUPPORT STRUCTURE OF WIND-POWER GENERATOR

Номер: US20150056079A1
Автор: HIOKI Shoichi, NAKAMIZO Eiichi, OMOTO Tatsuya, SAKAGUCHI Tomoya, SASABE Mitsuo
Принадлежит:

A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part. 113-. (canceled)14. A retainer segment provided by splitting one annular retainer along a split line extending in a direction along a shaft so as to have at least one pocket for housing a roller , having:a plurality of column parts extending in the direction along the shaft so as to form the pocket for holding said roller; anda connection part extending in a circumferential direction so as to connect the plurality of column parts, whereinsaid column part is positioned at circumferential each end of said retainer segment, anda circumferential outer side of said column part positioned at said end is provided with an expansion part expanding in a circumferential direction and a circumferential inner side thereof is provided with a recess recessed in the circumferential direction.15. A main shaft support structure of a wind-power generator comprising:a blade receiving wind power;a main shaft having one end fixed to said blade and rotating together with the blade; anda roller bearing incorporated in a fixing member and supporting said main shaft rotatably, whereinsaid roller bearing comprises an outer ...

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Номер записи: 31
15-05-2014 дата публикации

WIND TURBINE GENERATOR WITH LOCALIZED AIR GAP CONTROL AND A WIND TURBINE HAVING SUCH A GENERATOR

Номер: US20140133985A1
Автор: Mongeau Peter
Принадлежит: VESTAS WIND SYSTEMS A/S

A wind turbine component () includes an inner member () and an outer member () disposed relative to the inner member (), wherein the inner and outer members () move relative to each other. A plain bearing () is coupled to one of the inner or outer member () and configured to provide a fluid film () for maintaining separation of and facilitating relative movement between the inner and outer members (). A position adjustment mechanism () is coupled to the one of the inner or outer member () for selectively moving the plain bearing (). A position controller () may be operatively coupled to the position adjustment mechanism () for controlling the position of the plain bearing (). The wind turbine component may be a wind turbine generator () with the inner member and outer member corresponding to one of the stator and rotor assemblies (). Methods for controlling the generator are also disclosed. 1. A wind turbine component , comprising:an inner member;an outer member disposed relative to the inner member, the inner and outer members moving relative to each other;a plain bearing coupled to one of the inner or outer member and configured to provide a fluid film for maintaining separation of and facilitating relative movement between the inner and outer members;a position adjustment mechanism coupled to the one of the inner or outer member for selectively moving the plain bearing; anda position controller operatively coupled to the position adjustment mechanism for controlling the position of the plain bearing.2. The wind turbine component according to claim 1 , wherein the one of the inner or outer member is formed by a plurality of member segments claim 1 , wherein each of the member segments includes a plain bearing.35-. (canceled)6. The wind turbine component according to claim 2 , wherein each of the member segments includes a position adjustment mechanism coupled to the at least one member segment.7. The wind turbine component according to claim 2 , wherein when there ...

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Номер записи: 32
03-03-2016 дата публикации

VERTICAL AXIS WIND TURBINE SYSTEM WITH ONE OR MORE INDEPENDENT ELECTRIC POWER GENERATION UNITS

Номер: US20160061187A1
Автор: Aranovich Jorge, Cooper, JR. Frank W, Villoria José Jorge Gayarre
Принадлежит: VERT WIND ENERGY, LLC

A vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height of the mast by a winch system; and are selectively interlocking with the mast to fix the turbine units in parked positions. The turbine system and each turbine unit includes a network of portals and interior rooms for the passage of personnel through the system, including each turbine unit. The electrical generators, and other sub-components, in the turbine units are of modular construction that permits the selective removal and replacement of component segments, including the transport of component segments through the portals and interior rooms of the turbine system while the turbine units remain supported on the mast. The electrical generators are also selectively convertible between AC generators and DC generators. 1. A wind turbine system comprising:a wind turbine unit comprising a carousel-carrier and a carousel rotatably supported on the carousel-carrier, whereina vertical channel extends through a radial center of the carousel-carrier for reception of a vertical mast, and a vertical channel extends through a radial center of the carousel for reception of the carousel-carrier,the carousel comprises a carousel-hub, a pair of carousel arms extending from the carousel-hub, and a carousel blade extending between the pair of carousel arms, andthe turbine unit is a modular turbine unit that is an assembly of multiple turbine segments, the turbine segments being circumferential segments that releasably couple to adjacent turbine segments.2. The wind turbine system of claim 1 , whereinthe carousel-carrier is a modular carousel-carrier that is an assembly of multiple carouse-carrier segments, the carousel-carrier segments being circumferential segments that releasably couple to adjacent carousel-carrier segments.3. The wind turbine ...

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Номер записи: 33
03-03-2016 дата публикации

Drive train and wind power plant with a drive train

Номер: US20160061190A1
Автор: Matthias DEICKE
Принадлежит: SIEMENS AG

A drive train includes a gearbox having a gearbox housing, and a generator having a generator housing. A lubricating oil system including an oil reservoir lubricates toothed contact areas and/or bearings which are arranged within the gearbox housing. The oil reservoir is arranged within the generator housing or on an exterior side of the generator housing.

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Номер записи: 34
05-03-2015 дата публикации

WIND TURBINE BEARINGS

Номер: US20150063736A1
Автор: Minadeo Adam Daniel
Принадлежит: GENERAL ELECTRIC COMPANY

In one aspect, a pitch bearing for coupling a rotor blade to a hub of a wind turbine may include an outer race defining a first outer raceway wall. The first outer raceway wall may define a center of curvature. The pitch bearing may also include an inner race defining a first inner raceway wall. The first inner raceway wall may define a center of curvature. In addition, the pitch bearing may include a plurality of roller elements disposed between the first inner and outer raceway walls. Each roller element may define a geometric center. Moreover, the center of curvature for each of the raceway walls may be offset from the geometric center of each roller element. 1. A pitch bearing for coupling a rotor blade to a hub of a wind turbine , the pitch bearing comprising:an outer race configured to be coupled to the hub, the outer race defining a first outer raceway wall, the first outer raceway wall defining a curved profile having a center of curvature;an inner race rotatable relative to the outer race and configured to be coupled to the rotor blade, the inner race defining a first inner raceway wall, the first inner raceway wall defining a curved profile having a center of curvature; anda first plurality of roller elements disposed between the first inner and outer raceway walls, each of the first plurality of roller elements defining a geometric center,wherein the center of curvature for each of the first inner raceway wall and the first outer raceway wall is offset from the geometric center of each of the first plurality of roller elements.2. The pitch bearing of claim 1 , wherein the center of curvature for each of the first inner raceway wall and the first outer raceway wall is offset from the geometric center of each of the first plurality of roller elements by a distance ranging from about 0.1 mm to about 5 mm.3. The pitch bearing of claim 1 , wherein the outer race defines a second outer raceway wall and the inner race defines a second inner raceway wall claim 1 ...

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Номер записи: 35
10-03-2016 дата публикации

BEARING CONSTRUCTION FOR A TURBINE BLADE

Номер: US20160069328A1
Автор: VAN POMMEREN Jascha, VERHULST Laurens, Welling Koos
Принадлежит:

A bearing construction for rotationally supporting a wind turbine blade relative to a wind turbine hub, comprising a dynamic frame connecting the turbine blade and a static frame connecting the turbine hub. The dynamic frame is rotationally supported relative to the static frame by first and second axially spaced bearings. The dynamic and static frames comprise first and second bearing seats for the first and second bearings, respectively, and a first conical section having a cone base and a cone apex, and two or more frame legs circumferential openings in between. The dynamic and static frames are mutually overlapping, wherein the frame legs of one frame pass through openings between the frame legs of the other frame. The first conical sections of the static frame and the dynamic frame are oriented in the same direction, whereby a bearing seat is provided at the cone apex of each first conical section. 1. A bearing construction for rotationally supporting a turbine blade relative to a turbine hub , comprising:a dynamic frame configured for connection to the turbine blade;a static frame configured for connection to the turbine hub; anda first axially spaced bearing and a second axially spaced bearing adapted to rotationally support the dynamic frame relative to the static frame,wherein each of the dynamic and static frame comprises:a first bearing seat for the first axially spaced bearing and a second bearing seat for the second axially spaced bearing;a first conical section having a cone base and a cone apex; andat least two frame legs with openings in between;wherein the dynamic and static frames are mutually overlapping, such that the frame legs of one frame pass through the openings between the frame legs of the other frame,wherein the first conical section of the static frame and the first conical section of the dynamic frame are oriented in the same direction,wherein the cone apex of each first conical section is provided with a bearing seat.2. The bearing ...

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Номер записи: 36
12-03-2015 дата публикации

BLADE BEARING OR NACELLE BEARING OF A WIND TURBINE

Номер: US20150071578A1
Автор: Frank Hubertus
Принадлежит: IMO Holding GmbH

The invention relates to a blade bearing or nacelle bearing of a wind turbine, comprising two rings mounted adjacent to each other and rotatable relative to each other for connection on one side to the hub of the wind turbine and on the other side to a blade of same, or for connection on one side to the tower of the wind turbine and on the other side to the nacelle of same, wherein the two rings rotatable relative to one another are each provided with a circumferential internal toothing or are non-rotatably coupled for the purpose of joint toothed engagement by one or more toothed planetary gears running around a central sun gear, the planetary gears in turn meshing with the toothed sun gear. 1. A blade bearing or nacelle bearing of a wind turbine , the bearing comprising two rings mounted adjacent to each other , and rotatable relative to each other , for connection on a first side a hub of the wind turbine and on a second side to a blade of the wind turbine , or for connection on a first side to a tower of the wind turbine , and on the second side to a gondola of the wind turbine , wherein said two rings are rotatable relative to each other , and are each provided with , or non-rotatably coupled to , a circumferential inner toothing , for joint tooth engagement by one or more toothed planet gears revolving around a toothed central sun gear and meshing with the toothed sun gear.2. The blade bearing or nacelle bearing in accordance with claim 1 , wherein each of said two rings is provided with claim 1 , or coupled to claim 1 , a respective circular disk.3. The blade bearing or nacelle bearing in accordance with claim 2 , wherein the two disks are each fixed to mutually facing claim 2 , planar end faces of a respective ring.4. The blade bearing or nacelle bearing in accordance with wherein the two disks are arranged parallel to each other with a distance therebetween generally equal to claim 2 , or slightly greater than claim 2 , a height of the inner ring.5. The ...

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Номер записи: 37
09-03-2017 дата публикации

METHOD FOR RE-INDEXING A PITCH BEARING OF A WIND TURBINE

Номер: US20170067437A1
Автор: Holloway Brent Hamilton, Neumann Ulrich Werner, Pfeiffer Gaylon Mitchell, Willman Stephanie
Принадлежит:

A method is provided for re-indexing a pitch bearing configured with a rotor blade of a wind turbine. A hoisting system is anchored within the rotor hub and includes a plurality of support elements connected to a drive system. The support elements are connected to the root flange of the rotor blade, and the rotor hub is rotated so that the rotor blade is in a vertical six o'clock position. The root flange is disconnected from the inner race such that the rotor blade is fully supported by the hoisting system. With the hoisting system, the rotor blade is lowered a predetermined distance from the hub and the pitch bearing is re-indexed to a position so as to engage a new set of pitch bearing teeth with a pitch drive that engages the pitch bearing. 1. A method for re-indexing a pitch bearing configured with a rotor blade of a wind turbine , the pitch bearing operably coupled between a hub and the rotor blade , the pitch bearing having a fixed outer race and a rotatable inner race , the rotor blade having a root flange bolted onto the inner race , the method comprising:anchoring a hoisting system within the hub, the hoisting system having a plurality of support elements connected to a drive system;connecting the support elements to the root flange of the rotor blade;rotating the hub so that the rotor blade is in a vertical six o′clock position;disconnecting the root flange from the inner race such that the rotor blade is fully supported by the hoisting system;with the hoisting system, lowering the rotor blade a predetermined distance from the hub; andre-indexing the pitch bearing to a position so as to engage a new set of pitch bearing teeth with a pitch drive that engages the pitch bearing.2. The method as in claim 1 , wherein the hoisting system is a cable or chain hoisting system with a plurality of respective cable or chain support elements claim 1 , the method comprising fixing the cable or chain support elements to the root flange without the necessity of removing ...

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Номер записи: 38
26-03-2015 дата публикации

Wind turbine rotor

Номер: US20150086369A1
Автор: Rolf Rohden
Принадлежит: YOUWINENERGY GmbH

A wind turbine rotor is provided which comprises a hub ( 2 ) and at least one blade ( 20 ) supported by said hub ( 2 ). The blade ( 20 ) comprises a first blade section ( 3 ) and a second blade section ( 4 ), wherein said first blade section ( 3 ) is mounted to said hub ( 2 ) stationary with respect to said hub ( 2 ) and said second blade section ( 4 ) is supported by said first blade section ( 3 ) rotatably adjustable about a longitudinal axis of said blade ( 20 ) wherein said second blade section ( 4 ) is supported by said first blade section ( 3 ) by at least two bearings ( 7 a, 7 b ) which are spaced with respect to said longitudinal axis of said blade ( 20 ).

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Номер записи: 39
31-03-2016 дата публикации

WIND TURBINE

Номер: US20160090964A1
Автор: Armstrong Thomas B.
Принадлежит:

A wind turbine includes a turbine housing, a turbine wheel system housed in the turbine housing, and a wind power converting system for converting kinetic energy generated by the turbine wheel system into electrical energy. The turbine wheel system includes a turbine rotor being driven to rotate circumferentially around an interior of the turbine housing, and a rail frame guiding a rotational movement of a turbine rotor. The wind turbine not only allows airflow to move across and through the turbine wheel system but also allows airflow to be directed and exhausted to maximize and control energy generation. The wind turbine is able to efficiently convert wind power to electrical power via a turbine wheel system which allows for the load generated to be distributed across the circumference of the turbine wheel system instead of localized in the center as the traditional wind turbine. 1. A wind turbine , comprising:a plurality of turbine wheel systems, wherein each of said turbine wheel systems comprises a supporting frame, a turbine rotor supported by said supporting frame, and a rail frame coupled to said supporting frame to guide a rotational movement of said turbine rotor, wherein said turbine rotor comprises a circular upper rim, a circular lower rim spaced apart from said upper rim and a plurality of blades extended between said upper and lower rims, wherein said turbine rotor is driven to rotate along said rail frame in responsive to wind force exerting at said blades, wherein said turbine wheel systems are stackable that one of said turbine wheel systems is stacked on top of another said turbine wheel system; anda plurality of power converting systems, each power converting system being operatively coupled with a corresponding one of said plurality of turbine wheel systems for converting kinetic energy of each of said turbine rotors into useable energy selected from the group consisting of electrical energy and mechanical energy.2. The wind turbine of wherein ...

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Номер записи: 40
31-03-2016 дата публикации

WIND TURBINE ROTOR SHAFT ARRANGEMENT

Номер: US20160090966A1
Автор: Kullin Arne Lars Jonas, REICHERT Juergen, Wendeberg Hans
Принадлежит: AKTIEBOLAGET SKF

A wind turbine rotor shaft arrangement comprising a shaft supporting wind turbine blades and a non-rotating first housing structure (mounted to a wind turbine nacelle framing) along with a first rolling bearing supporting (in a first axial direction) the shaft to the first housing structure at a first support point. The first rolling bearing is a self-aligning bearing comprising a first inner ring, a first outer ring and a set of rolling elements interposed therebetween. Each roller is asymmetric, having a curved raceway-contacting surface contacting at least one of the curved inner/outer raceways of the first inner/outer ring, respectively. A contact angle between each roller and the respective raceway is inclined respective to the shaft radial direction. A non-rotating second housing structure (mounted to the wind turbine nacelle framing) supports the shaft. A second rolling bearing supports the shaft by the second housing structure at a second support point. 1. A wind turbine rotor shaft arrangement , comprising:a rotor shaft for supporting wind turbine blades;a non-rotating first housing structure for supporting the rotor shaft, which first housing structure is arranged to be mounted to a wind turbine nacelle framing; anda first rolling bearing arranged to support, in radial direction and in at least a first axial direction, the rotor shaft in relation to the first housing structure at a first support point, which first rolling bearing is a single row self-aligning bearing comprising a first inner ring, a first outer ring and a set of rolling elements formed of rollers interposed between the first inner and outer rings;wherein each roller is an asymmetrical roller and has a curved raceway-contacting surface arranged in contact with a curved inner raceway of the first inner ring and in contact with a curved outer raceway of the first outer ring,wherein a contact angle between each roller and at least one of the inner raceway and the outer raceway is inclined in ...

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Номер записи: 41
31-03-2016 дата публикации

WIND POWER GEARBOX

Номер: US20160090967A1
Автор: BOLAND Thomas, Daners Dominikus
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A wind power gearbox includes two oil chambers for receiving oil, each of the oil chambers having an opening to allow passage of oil. A pipe connects the two oil chambers to one another and has ends arranged in the openings of the chambers, respectively. The openings have each a conicity with an inner cone, which opens away from the oil chamber, with the ends of the pipe having a corresponding conicity with an outer cone. At least one static sealing element is arranged between the inner cone of the openings and the outer cone of the pipe ends for providing a seal. 1. A wind power gearbox , comprising:two oil chambers for receiving oil, each of the oil chambers having an opening to allow passage of oil;a pipe connecting the two oil chambers to one another, said pipe configured to route oil and having ends arranged in the openings of the chambers, said openings having each a conicity with an inner cone, which opens away from the oil chamber, said ends of the pipe having a corresponding conicity with an outer cone; andat least one static sealing element arranged between the inner cone of the openings and the outer cone of the pipe ends for providing a seal.2. The wind power gearbox of claim 1 , wherein at least one of the pipe ends has a bevel.3. The wind power gearbox of claim 1 , wherein at least one of the pipe ends has a step for axial fixing of the pipe on the assigned one of the openings.4. The wind power gearbox of claim 1 , wherein the pipe includes a plurality of pipe parts claim 1 , at least two of the pipe parts being displaceable axially relative to one another. This application claims the priority of European Patent Application, Serial No. 14186836.4, filed Sep. 29, 2014, pursuant to 35 U.S.C. 119(a)-(d), the disclosure of which is incorporated herein by reference in its entirety as if fully set forth herein.The present invention relates to a wind power gearbox.The following discussion of related art is provided to assist the reader in understanding the ...

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Номер записи: 42
09-04-2015 дата публикации

Rotary shaft device and vertical shaft fluid power generator

Номер: US20150098797A1
Автор: Yuji Shirakawa, Yuki Hayashi
Принадлежит: THK Co Ltd

A rotary shaft device ( 3 ) includes a shaft body ( 20 ) rotatably supported by angular bearings ( 35, 36 ), and a support body ( 40 ) configured to rotatably support the shaft body ( 20 ) via the angular bearings ( 35, 36 ). A ball rolling groove ( 21 ) having a Gothic arch shape in which rolling elements ( 39 ) of the angular bearings ( 35, 36 ) roll is formed in an outer circumferential surface of the shaft body ( 20 ).

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Номер записи: 43
09-04-2015 дата публикации

BEARING ARRANGEMENT

Номер: US20150098825A1
Автор: Efraimsson Linus, Wendeberg Hans
Принадлежит:

A bearing arrangement, comprising a rolling bearing, which includes an inner ring, an outer ring, rolling elements interposed therebetween, and a cage for holding and separating the rolling elements, wherein the inner ring presents an inner circumferential surface. A shaft is also present, wherein the rolling bearing is mounted on the shaft via the inner circumferential surface of the inner ring. The shaft during operation is meant to oscillate in its axial direction, or is positioned in an angle α being (90−y) degrees, wherein y is between 0 and 89, or the rolling elements during operation are exposed of an axial force F, and the cage presents means for axially guiding the rolling elements against at least one of the inner ring, the outer ring or a separate element located outside the rolling bearing. The bearing can be integrated into a wind turbine main shaft arrangement. 1. A bearing arrangement , comprising ,a rolling bearing, wherein the rolling bearing comprises includes an inner ring, an outer ring, rolling elements, wherein the rolling elements are interposed between the inner and outer rings, and a cage for holding and separating the rolling elements, wherein the inner ring presents an inner circumferential surface, anda shaft, wherein the rolling bearing is mounted on the shaft via the inner circumferential surface of the inner ring,wherein one of:(a) the shaft, during operation, is meant to oscillate in its axial direction, or(b) the shaft is positioned in an angle α being (90−y) degrees, wherein y is between 0 and 89, or(c) the rolling elements during operation are exposed of an axial force F, andwherein the cage includes an axial guiding feature for axially guiding the rolling elements against at least one of the inner ring, the outer ring or a separate element located outside the rolling bearing.21. The bearing arrangement according to claim , wherein the rolling bearing is a roller bearing.3. The bearing arrangement according to claim 2 , wherein the ...

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Номер записи: 44
07-04-2016 дата публикации

MAGNETIC BEARING SYSTEMS

Номер: US20160097373A1
Автор: Baumgardner Vern
Принадлежит:

A bearing system for application in a vertical axis wind turbine including: a first portion, where the first portion includes a threaded female end; a second portion, where the second portion includes a threaded male end, where the male end inserts into the threaded female end; and a cylindrical magnet, where the cylindrical magnet is embedded into a distal end of the opening. 1. A bearing system for application in a vertical axis wind turbine comprising:a. a first portion, where the first portion includes a threaded female end;b. a second portion, where the second portion includes a threaded male end, where the male end inserts into the threaded female end; andc. a cylindrical magnet, where the cylindrical magnet is embedded into a distal end of the opening.2. An inner hub for use in a vertical axis wind turbine comprising:a. a center shaft extending from a top end to a bottom end of the inner hub;b. a cylindrical magnet positioned within the center shaft below a housing on the inner hub; andc. a plurality of outer magnetics, where the outer magnetics are within the housing. 1. Field of the InventionThe present invention relates to a magnetic bearing used to eliminate mechanical friction.2. Description of Related ArtBearings in general are used to transfer rotational forces over a rod, shaft or other rotating mechanical device. Bearings are used in various applications in axles, wheels and other rotating applications. The bearing usually enables the transfer of force over a particular area. One drawback of using bearings is the friction that inevitably occurs during use. This friction causes damage to the bearing and may necessitate the replacement thereof As a consequence, of it would be advantageous to have a device or design of a bearing that reduces frictional forces therefore increasing the useful life of a bearing.The present invention relates a bearing system for application in a vertical axis wind turbine comprising: a first portion, where the first portion ...

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Номер записи: 45
23-04-2015 дата публикации

EFFICIENT SYSTEMS AND METHODS FOR CONSTRUCTION AND OPERATION OF MOBILE WIND POWER PLATFORMS

Номер: US20150110599A1
Автор: Freda Robert M.
Принадлежит:

In embodiments of the present invention improved capabilities are described for a mobile wind power support structure, comprising a superstructure with mobile platform support structures, and a plurality of deployable rotating wind power structures, wherein the plurality of deployable rotating wind power structures are positioned in the superstructure through a wind orientation facility. 1. A system comprising:a plurality of wind energy conversion modules, each one of the plurality of wind energy conversion modules comprising a nozzle that includes an intake, a diffuser, and a throat between the intake and the diffuser, wherein a first diameter of an entrance of the intake and a second diameter of an exit of the diffuser are greater than a third diameter of the throat and wherein a rotor is positioned within the throat to convert the flow of air into a rotational energy;a support structure supporting the plurality of nozzles in the plurality of wind energy conversion modules; anda non-mechanized element that uses an airflow to orient the plurality of nozzles in the support structure in a direction of the airflow.2. The system of wherein the non-mechanized element includes one or more yaw motors or stored energy flywheels.3. The system of wherein the non-mechanized element includes a tail on at least one of the plurality of nozzles.4. The system of wherein the plurality of nozzles include a plurality of self-orientating nozzles each with an independent orientation within the support structure.5. The system of wherein the plurality of nozzles include one or more nozzles configured to orient toward a vertical component of the direction of the airflow.6. The system of wherein the non-mechanized element includes a bearing coupling the plurality of wind energy conversion modules to the support structure claim 1 , wherein the bearing is mounted forward of a center of geometry of the plurality of wind energy conversion modules.7. The system of wherein the support structure ...

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Номер записи: 46
23-04-2015 дата публикации

Improvements relating to wind turbines

Номер: US20150110631A1
Автор: Jesper Lykkegaard Andersen, Leif Christoffersen, Torben Friis Baun
Принадлежит: Vestas Wind Systems AS

A wind turbine is described which comprises a tower, a nacelle mounted to the top of the tower, and a rotor mounted to the nacelle. The rotor comprises two or more blades mounted to a central hub. The hub supports two or more annular pitch bearings associated respectively with the two or more blades. Each pitch bearing defines a bearing plane inclined at a first angle with respect to a horizontal plane when the respective blade is oriented in a downwardly direction in alignment with the tower. Each pitch bearing is spanned by a hub plate; and a work platform integral with or mounted to the hub plate lies generally in a plane at a second angle to the horizontal plane when the respective blade is oriented in a downwardly direction in alignment with the tower, which second angle is less than the first angle. The work platform provides a substantially horizontal platform for use by maintenance personnel when installing or servicing components in and around the hub.

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Номер записи: 47
03-07-2014 дата публикации

SEALING SYSTEM AND METHOD OF MAINTAINING A CLEAN ENVIRONMENT IN A WIND TURBINE BY ABSORBING LUBRICANT USED IN THE PITCH OR YAW BEARINGS

Номер: US20140186153A1
Автор: Baun Torben Friis, Rowntree Robert
Принадлежит: VESTAS WIND SYSTEMS A/S

A sealing system for a wind turbine comprises first component and a second component positioned proximate the first component and movable relative thereto. An absorbent element is secured to the first component and comprises an oil-absorbent material. A contact member is secured to the absorbent element and comprises a non-absorbent material. The contact member abuts the second component so that lubricant leaking from between the first and second components is collected by the absorbent element. A method of maintain a clean environment in a wind turbine with such a sealing system is also disclosed. 1. A sealing system for containing lubricant , comprising:a first component;a second component positioned proximate the first component and movable relative thereto;an absorbent element secured to the first component, the absorbent element comprising an oil-absorbent material; anda contact member secured to the absorbent element, the contact member abutting the second component and comprising a non-absorbent material.2. The sealing system according to claim 1 , wherein the second component is movable relative to the first component in two directions.3. The sealing system according to claim 2 , wherein the first and second components comprise first and second rings of a bearing.4. The sealing system according to claim 3 , further comprising:a primary seal positioned between the first and second rings, the absorbent element being positioned over the primary seal.5. The sealing system according to claim 3 , wherein the absorbent element is clamped to the first ring.6. The sealing system according to claim 5 , wherein the first ring includes a plurality of bolt holes and a plurality of bolts extending through the bolt holes claim 5 , the sealing system further comprising: a plurality of brackets for clamping the absorbing element to the first ring claim 5 , wherein each bracket is secured to one of the bolts.7. The sealing system according to claim 6 , wherein the brackets ...

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Номер записи: 48
03-07-2014 дата публикации

WIND TURBINE BLADE MOUNTING SYSTEM

Номер: US20140186185A1
Автор: Fox Gerald P.
Принадлежит: THE TIMKEN COMPANY

A wind turbine blade mounting system for use with variable-pitch wind turbine blades () having reduced diameter blade roots. For each wind turbine blade () to be installed on a nose cone structure () of a wind turbine nacelle, the mounting system incorporates a high capacity bearing assembly () configured with an outwardly-opening tapered inner sleeve () to engage a tapered shank section () of an associated wind turbine blade in a self-locking coupling, thereby facilitating assembly and disassembly of the wind turbine blades from a nose cone structure (). 1. A wind turbine blade mounting system for use with variable-pitch wind turbine blades having tapered blade roots , comprising:a high capacity bearing assembly mounted in a wind turbine nose cone structure for each wind turbine blade, each high capacity bearing assembly configured with an outwardly opening tapered inner sleeve to co-axially engage a tapered shank section of an associated wind turbine blade in a self-locking coupling for rotation about a blade axis X-X perpendicular to a nose cone prop axis of rotation, thereby facilitating assembly and disassembly of the wind turbine blades from the wind turbine nose cone structure.2. The wind turbine blade mounting system of wherein each high capacity bearing assembly includes a set of rolling elements disposed within inner and outer races between the tapered inner sleeve and a supporting bearing cartridge coupled to said nose cone structure claim 1 , said set of rolling elements enabling said tapered inner sleeve and a coupled tapered shank section of a wind turbine blade to rotate about the blade axis X-X for blade pitch control;3. The wind turbine blade mounting system of wherein a preload setting on said set of rolling elements is selected by an annular spacer disposed between said tapered inner sleeve and an inner race.4. The wind turbine blade mounting system of wherein said tapered shank section of said wind turbine blade is axially coupled to a bull gear ...

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Номер записи: 49
30-04-2015 дата публикации

SYSTEM FOR LUBRICATING GEARS IN A WIND TURBINE

Номер: US20150114756A1
Автор: Gu Ting, LIU Shijiang, XU Junqing
Принадлежит:

A system for lubricating gears includes a drive pinion configured to interact with bearing teeth. The drive pinion includes an internal axially extending lubricant channel connected to a plurality of radially extending lubricant delivery conduits. The plurality of radially extending lubricant delivery conduits extend from the internal axially extending lubricant channel radially outward to a radial surface of the drive pinion. The system is configured to transport lubricant from the internal lubricant channel through the plurality of lubricant delivery conduits to the radial surface to lubricate the drive pinion and the bearing teeth. 1. A system for lubricating gears , the system comprising:a drive pinion configured to interact with bearing teeth, the drive pinion comprising an internal axially extending lubricant channel connected to a plurality of radially extending lubricant delivery conduits, the plurality of radially extending lubricant delivery conduits extending from the internal axially extending lubricant channel radially outward to a radial surface of the drive pinion; andwherein the system is configured to transport lubricant from the internal lubricant channel through the plurality of lubricant delivery conduits to the radial surface to lubricate the drive pinion and the bearing teeth.2. The system of claim 1 , further comprising a distributor disposed at an axial end of the drive pinion claim 1 , the distributor including a lubricant inlet claim 1 , andwherein the distributor is configured to direct lubricant to meshing teeth and to restrict flow of the lubricant to non-meshing teeth.3. The system of claim 2 , further comprising a lubricant supply conduit connected to the lubricant inlet.4. The system of claim 1 , wherein the drive pinion is a pitch drive pinion in a wind turbine.5. The system of claim 1 , wherein the plurality of lubricant delivery conduits terminate in the radial surface in valleys located between teeth of the drive pinion.6. The ...

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Номер записи: 50
10-07-2014 дата публикации

DIRECT-DRIVE WIND TURBINE

Номер: US20140193262A1
Автор: Pedersen Bo, Thomsen Kim
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A direct driven wind turbine with a plain bearing and a service method for this bearing is provided. A rotor is directly connected with a rotatable drive train, which is directly connected with a rotor of an electrical generator. The rotatable drive train is connected with a stationary part via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The generator provides a support structure to which the stationary side of the at least one bearing is mounted. The at least one bearing is a plain bearing and the plain bearing comprises a wear-and-tear-part, which is an object to be exchanged. The rotatable drive train is prepared to be fastened to the stationary part and at least one wear-and-tear-part of the plain bearing is exchangeable while the rotatable drive train is fastened to the stationary part. 1. A direct-drive wind turbine comprising:a rotor of the wind turbine directly connected with a rotatable drive train of the wind turbine;wherein the rotatable drive train is directly connected with a rotor of an electrical generator of the wind turbine,wherein the rotatable drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the rotatable drive train in relation to the stationary part,wherein the electrical generator provides a support structure to which the stationary side of the at least one bearing is mounted,wherein the at least one bearing is a plain bearing,wherein the plain bearing comprises a wear-and-tear-part, which is an object to be exchanged,wherein the rotatable drive train is prepared to be fastened to the stationary part of the wind turbine,wherein at least one of the wear-and-tear-part of the plain bearing is exchangeable while the rotatable drive train is fastened to the stationary part.2. The direct-drive wind turbine according to claim 1 , wherein the at least one bearing comprises a ring that is detachable from the at least one ...

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Номер записи: 51
10-07-2014 дата публикации

LUBRICATION SYSTEMS FOR BEARING ASSEMBLIES

Номер: US20140193263A1
Автор: Pasquet Pierre
Принадлежит: ALSTOM RENOVABLES ESPAÑA, S.L.

A lubrication system is disclosed for a bearing assembly, the bearing assembly having at least one bearing. The lubrication system may comprise a pump circuit, an injection circuit, an extraction circuit and at least one three-way valve. The pump circuit may comprise at least a pump. The injection circuit may provide lubricant to the bearing during an injection mode of operation. The extraction circuit may extract lubricant from the bearing during an extraction mode of operation. A flow combination topology of the first three-way valve may allow operation of the lubrication system in the injection mode or in the extraction mode or in both modes simultaneously. 1. A lubrication system for a bearing assembly , the bearing assembly having at least one bearing , comprising:a pump circuit, having at least a pump;a lubricant injection circuit for providing lubricant to the bearing during an injection mode of operation;a lubricant extraction circuit for extracting used lubricant from the bearing during an extraction mode of operation; andat least a first three-way valve, having a first port coupled to the pump circuit, a second port coupled to the lubricant injection circuit and a third port coupled to the lubricant extraction circuit,wherein the first three-way valve allows operation of the lubrication system in the injection mode or in the extraction mode or in both modes simultaneously.2. The lubrication system according to claim 1 , further comprising a first monitoring element claim 1 , coupled to the lubricant injection circuit claim 1 , for measuring the volume of lubricant injected in the bearing during the injection mode and a second monitoring element claim 1 , coupled to the lubricant extraction circuit claim 1 , for measuring the volume of lubricant extracted during the extraction mode.3. The lubrication system according to claim 2 , wherein the first three-way valve is operable in response to a volume of lubricant measured by at least one of the first and ...

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Номер записи: 52
10-07-2014 дата публикации

DIRECT-DRIVE WIND TURBINE

Номер: US20140193264A1
Автор: Pedersen Bo, Thomsen Kim
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A direct driven wind turbine and the main bearing used in such a wind turbine is provided. The rotating drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The at least one bearing is a plain bearing; the bearing comprises at least one cylindrical sliding surface constructed to support radial loads present in the drive train. The bearing comprises at least two radial bearing surfaces constructed to support axial loads and bending moments present in the drive train. The surface areas of the radial bearing surfaces is dimensioned proportional to a predetermined maximum total load of the bending moments expected in the drive train. 1. A direct-drive wind turbine comprising:a rotor of the direct-drive wind turbine directly connected with a rotating drive train of the wind turbine, wherein the rotating drive train is directly connected with a rotor of an electrical generator of the direct-drive wind turbine;wherein the rotating drive train is connected with a stationary part of the direct-drive wind turbine via at least one bearing, which allows a rotation of the rotating drive train in relation to the stationary part;wherein the at least one bearing is a plain bearing the at least one bearing comprises at least one cylindrical sliding surface constructed to support radial loads present in the rotating drive train;wherein the at least one bearing comprises at least two radial bearing surfaces with a surface area constructed to support axial loads and bending moments present in the rotating drive train,wherein the surface areas of the at least two radial bearing surfaces is dimensioned proportional to a predetermined maximum total load of the bending moments expected in the rotating drive train.2. The direct-drive wind turbine according to claim 1 , wherein the surface areas of the radial bearing surfaces is in direct proportion to an inner radius of ...

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Номер записи: 53
28-04-2016 дата публикации

OIL DISCHARGING SYSTEM FOR MAIN SHAFT BEARING OF WIND TURBINE GENERATOR

Номер: US20160115943A1
Автор: GE CHUNLI, Li Guangwei, WU SHULIANG, YAN XINGCUN, YU LlANGFENG, Zhao Lei
Принадлежит:

The present invention provides an oil discharging system for a main shaft bearing of a wind turbine generator, including: a main shaft bearing, a bearing seal, a bearing end cover, a waste oil through hole, at least one thumb wheel; the bearing seal is sleeved to an end of the main shaft bearing, the bearing end cover is engaged with the bearing seal to encircle the outside of the bearing seal; the waste oil through hole is provided on the bearing end cover; the at least one thumb wheel is provided on the bearing seal, enables the waste oil been discharged from the waste oil through hole after the thumb wheel acts upon. Since the thumb wheel rotates with the main shaft bearing, so that the waste oil discharge from the waste oil through hole effectively, thus pollutions to the wind turbine generator and surroundings thereof are reduced. 1. An oil discharging system for a main shaft bearing of a wind turbine generator , comprising: a main shaft bearing , a bearing seal , a bearing end cover , a waste oil through hole and at least one thumb wheel;wherein, the bearing seal is sleeved to an end of the main shaft bearing, the bearing end cover is engaged with the bearing seal to encircle the outside of the bearing seal;the waste oil through hole is provided on the bearing end cover;the at least one thumb wheel is provided on the bearing seal, enables the waste oil been discharged from the waste oil through hole after the thumb wheel acts upon it.2. The oil discharging system according to claim 1 , wherein the thumb wheel comprises: a first panel and a second panel;the first panel and the second panel are disposed perpendicular to one another.3. The oil discharging system according to claim 2 , wherein the first panel and the second panel are connected by means of welding.4. The oil discharging system according to claim 1 , wherein the thumb wheel and the bearing seal are connected by means of bolts or slot fixing or welding or adhering.5. The oil discharging system ...

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Номер записи: 54
17-07-2014 дата публикации

LARGE ROLLING BEARING

Номер: US20140199171A1
Автор: Jepsen Torsten
Принадлежит: Wobben Properties GMBH

The invention concerns a large-size rolling bearing which is in the form of a multi-row ball-bearing rotary joint for carrying axial loads, radial loads and tilting moments. The large-size rolling bearing has an outer race, an inner race, a first ball row and a second ball row. The first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, associated with the first ball row are four raceway portions and associated with the second ball row are four raceway portions. The invention concerns in particular a large-size rolling bearing in which a surface of a respective raceway portion provided in the inner race is larger than the surface of the respectively adjacent raceway portion provided in the inner race and equal to the surface of the respectively diametrally oppositely disposed raceway portion provided in the outer race. 1. A large-size rolling bearing comprising:an outer race;an inner race; anda first ball row and a second ball row, wherein the first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, wherein associated with the first ball row are two first raceway portions of the inner race and two first raceway portions of the outer race, and associated with the second ball row are two second raceway portions of the inner race and two second raceway portions of the outer race,wherein an inner surface of one of the first raceway portions and one of the second raceway portions of the inner race is larger than an inner surface of another one of the first raceway portions and another one of the second raceway portions, respectively, of the inner race and is equal to an inner surface of a diametrically opposed raceway portion of the outer race.2. The large-size rolling bearing according to wherein a surface of the first raceway portions of the inner race is equal to a surface of the respectively ...

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Номер записи: 55
05-05-2016 дата публикации

Wind turbine control

Номер: US20160123304A1
Автор: Jone Torsvik, Lars Brenne, Svend Tarald Kibsgaard
Принадлежит: Statoil Petroleum ASA

A method of dynamically controlling a wind turbine having a rotor supporting a plurality of blades and a main bearing supporting the rotor, the method comprising detecting a load profile around the circumference of the main bearing, generating a control signal based on the detected load profile and dynamically adjusting the load profile of the main bearing using the control signal.

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Номер записи: 56
05-05-2016 дата публикации

ROTOR BLADE ASSEMBLY FOR A WIND TURBINE HAVING VARIABLE-LENGTH BLADE BOLTS

Номер: US20160123306A1
Автор: Caruso Christopher Daniel, Gobeli William Max, Minadeo Adam Daniel
Принадлежит:

The present disclosure is directed to a rotor blade assembly for a wind turbine that controls pitch bearing load distribution. The assembly includes a rotor blade having a body shell extending between a blade root and tip, a pitch bearing at an interface between the blade root and a hub of the wind turbine, and plurality of blade bolts coupling the blade root to the hub through the pitch bearing. The pitch bearing includes an outer bearing race and an inner bearing race rotatable relative to the outer race. Thus, in one embodiment, the blade bolts couple the blade root to the hub through the inner race of the pitch bearing. Further, each of the blade bolts has a first end and a second end defining a length therebetween and at least two of the blade bolts have varying lengths so as to distribute loads experienced by the pitch bearing. 1. A rotor blade assembly for a wind turbine , comprising:a rotor blade including a body shell extending between a blade root and a blade tip;a pitch bearing configured at an interface between the blade root and a hub of the wind turbine, the pitch bearing comprising an outer bearing race and an inner bearing race rotatable relative to the outer race; and,a plurality of blade bolts configured to couple the blade root to the hub through the pitch bearing, each of the blade bolts comprising a first end and a second end defining a length therebetween, wherein at least two of the blade bolts comprise varying lengths so as to evenly distribute loads experienced by the pitch bearing.2. The rotor blade assembly of claim 1 , wherein the plurality of blade bolts are configured to couple the blade root to the hub through the inner race of the pitch bearing.3. The rotor blade assembly of claim 1 , wherein the plurality of blade bolts comprise a first set of blade bolts having a first length and a second set of blade bolts having a second length claim 1 , wherein the first length is greater than the second length.4. The rotor blade assembly of ...

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Номер записи: 57
12-05-2016 дата публикации

WIND TURBINE FIRE SUPPRESSION SYSTEM

Номер: US20160129289A1
Автор: Cordani Peter
Принадлежит:

A system for suppressing a wind turbine fire using an admixture of hydrated super absorbent polymer having properties for suppressing and extinguishing of a fire. The admixture is non conductive and, upon drying, leaves a non-conductive residual that can be vacuumed from the wind turbine components to allow salvaging of the wind turbine components. The admixture is maintained within a pressurized storage vessel having a solenoid that is released by temperature sensor applying the admixture through strategically positioned nozzles to the control cabinets, generator, gearbox and bearings for extinguishment of any associated fire. Since the admixture of super absorbent polymer and water entraps the particulates and noxious and/or toxic gasses, the clean-up is substantially easier and quicker than the clean up from other methods of fire suppression and extinguishing. 1. A wind turbine fire suppression system constructed and arranged to suppress a fire within a shielded cabinet housing wind turbine machinery comprising:a sealed container capable of holding pressurized non-conductive hydrated super absorbent polymer;a predetermined amount of admixture of non-conductive hydrated super absorbent polymer stored within said container;at least one charging cylinder coupled to said sealed container for pressurization of said container storing said admixture;a plurality of distribution nozzles fluidly connected to said sealed container strategically positioned and constructed and arranged to spray said admixture on the machinery of said wind turbine;at least one sensor for detecting fire ignition and means for releasing said stored admixture of non-conductive hydrated super absorbent polymer onto said machinery; andwhereby said admixture formulated to provided fire suppression and encapsulate noxious and toxic gases thereby reducing organic and metal emissions.2. The wind turbine fire suppression system according to wherein said nozzles are directed to spray pattern of said ...

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Номер записи: 58
31-07-2014 дата публикации

METHODS OF CONTROLLING A LUBRICATOR APPARATUS, METHODS OF COMMUNICATION, AND APPARATUSES AND SYSTEMS

Номер: US20140209413A1
Автор: Orlitzky Stephan Karl
Принадлежит: STEPHANIA HOLDINGS INC.

A method of controlling a lubricator apparatus, according to one illustrative embodiment, comprises: receiving a signal representing rotation of a lubricant applicator in rotatable engagement with an object to be lubricated; and causing the lubricator apparatus to dispense lubricant through the lubricant applicator to the object to be lubricated in response to the signal. A method of communication, according to another illustrative embodiment, comprises: receiving, at a communication apparatus, a plurality of input operational property signals; transmitting an output operational property signal from the communication apparatus to a data collection apparatus, the output operational property signal representing at least one of the measurements; receiving, at the communication apparatus, an input control signal; and controlling at least one device of the system in response to the input control signal. Other illustrative embodiments include a computer-readable medium, a lubricator apparatus, a system, and a communication apparatus. 1. A method of controlling a lubricator apparatus , the method comprising:receiving a signal representing rotation of a lubricant applicator in rotatable engagement with an object to be lubricated; andcausing the lubricator apparatus to dispense lubricant through the lubricant applicator to the object to be lubricated in response to the signal.2. The method of wherein the lubricant applicator comprises an idler gear.3. The method of wherein the idler gear comprises a metallic idler gear.4. The method of wherein the lubricant applicator comprises a sponge.5. The method of wherein the sponge comprises polyethylene.6. The method of wherein the object to be lubricated comprises a gear.7. The method of wherein the object to be lubricated comprises a chain.8. The method of further comprising producing the signal.9. The method of wherein the signal represents detection proximate a reference point of at least one detectable element on the lubricant ...

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Номер записи: 59
21-05-2015 дата публикации

BEARING ASSEMBLY

Номер: US20150139584A1
Автор: Hofmann Katrin, Kuhstrebe Jochen, Olschewski Armin, Stubenrauch Arno, Thangavelu Malinipriya
Принадлежит: AKTIEBOLAGET SKF

A bearing assembly includes first and second rolling-element bearings each having an inner ring with a running surface for rolling elements and a guide flange that extends radially outwardly beyond the running surface for limiting axial movement of the rolling elements. The inner rings are configured such that they are in contact with each other exclusively within a contact surface diameter that is smaller than an average value of a maximum diameter of the running surface of one of the inner rings and a maximum outer diameter of that inner ring. The guide flanges are disposed on sides of the inner ring of the first rolling-element bearing and of the second rolling-element bearing that face each other axially. 1. A bearing assembly comprising:a first rolling-element bearing including an inner ring that is connectable to a shaft for rotation therewith, the inner ring of the first rolling-element bearing having a running surface for rolling elements of the first rolling-element bearing; anda second rolling-element bearing including an inner ring that is connectable to the shaft for rotation therewith, the inner ring of the second rolling-element bearing having a running surface for rolling elements of the second rolling-element bearing,wherein the inner ring of the first rolling-element bearing and the inner ring of the second rolling-element bearing are configured such that the inner ring of the first rolling-element bearing and the inner ring of the second-rolling element bearing are in contact with each other exclusively within a contact surface diameter, the contact surface diameter being smaller than an average value of a maximum diameter of the running surface of the inner ring of the first rolling-element bearing and a maximum outer diameter of the inner ring of the first rolling-element bearing, and the contact surface diameter being smaller than an average value of a maximum diameter of the running surface of the inner ring of the second rolling-element ...

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Номер записи: 60
21-05-2015 дата публикации

FLOW-BASED POWER GENERATING PLANT WITH TWIST BEARING IN THE BLADE ROOT

Номер: US20150139804A1
Автор: Baldus Martin, Groh Efim, Jensen Gerhard
Принадлежит:

A flow-based power generating plant with a turbine, which can be acted on by a fluid flow and having a plurality of blades that extend from a blade base to a blade tip and are fastened by the blade base to a rotating rotor. The action of the fluid flow can cause the blades to twist elastically around an axis which extends through the blade base, in such a way that the pitch of the blades can be increased. The blade base is fastened to the rotor with the interposition of a bearing device and the bearing device is embodied as rigid in terms of tension, compression, bending, and shearing relative to the axis, but is embodied as flexible in terms of torsion, wherein the bearing device has a primary connecting part fastened to the rotor and a secondary connecting part fastened to the blade base, which are connected to each other via a multitude of leaf springs so that the primary connecting part is able to rotate relative to the secondary connecting part through elastic deformation of the leaf springs and the leaf springs are arranged on an essentially circular circumference and have a rectangular cross-section with a longer side and a shorter side, with the longer side extending radially outward with regard to the circumference on which the leaf springs are arranged. 1111110111110101111011110151515010152110151150152151151151115101511151. A flow-based power generating plant () with a turbine , which can be acted on by a fluid flow (H) and having a plurality of blades () that extend from a blade base () to a blade tip () and fastened by blade base () to a rotating rotor (); an action of the fluid flow (H) can cause the blades () to twist elastically around an axis (P) , which extends through the blade base () so that a pitch of the blades can be increased; the blade base () is fastened to the rotor () with an interposition of a bearing device () and the bearing device is rigid in tension , compression , bending , and shearing relative to the axis (P) and is flexible in ...

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Номер записи: 61
21-05-2015 дата публикации

Roller bearing arrangement for mounting parts of a wind power plant and a wind power plant having a blade bearing designed in such a manner

Номер: US20150139809A1
Автор: Werner SCHRÖPPEL
Принадлежит: IMO Holding GmbH

The invention relates to a rolling bearing arrangement ( 5 ) for mounting parts of a wind power plant ( 1 ), comprising three relatively rotatable annular elements ( 6 - 8 ) arranged concentrically with one another and at least regionally inside one another for connection to relatively rotatable parts of the wind power plant, wherein two relatively rotatable connecting elements ( 6 - 9 ) are separated from each other by a gap ( 9, 10 ) and partially or wholly overlap each other in the radial direction, wherein, further, provided in the region of a gap in radially overlapping regions of the annular connecting elements are at least two rows of rolling elements ( 34, 35 ), each of which rolls along a respective two raceways ( 32, 33 ) that overlap each other at least regionally in the radial direction, as well as at least one additional row of rolling elements ( 42 ) whose raceways do not overlap in the radial direction, wherein the radially innermost connecting element and the radially outermost connecting element are connected to one machine part and the radially middle connecting element is connected to the respectively other machine part.

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Номер записи: 62
21-05-2015 дата публикации

METHOD FOR LUBRICATING A GEARBOX FOR A WIND TURBINE

Номер: US20150139820A1
Автор: Leimann Dirk
Принадлежит:

A method for lubricating a gearbox of a wind turbine. The gearbox comprises a plurality of gears and shafts supported by bearings of which at least one bearing is a plain bearing. The gearbox furthermore comprises a lubrication system with both a mechanical pump and an electrical pump for feeding the gears and bearings with lubricant, wherein a difference between a volume capacity of the mechanical and electrical pump is a maximum 40%. The method comprises the step of controlling at least one valve, during start-up of the gearbox, and feeding lubricant to the bearings via the electrical pump; feeding lubricant to the bearings and the gears, during normal operation of the gearbox, via the electrical pump and the mechanical pump; and feeding lubricant only the bearings, during the absence of electrical power supply, via the mechanical pump. 17-. (canceled)8. A method for lubricating a gearbox of a wind turbine in which the gearbox comprises a plurality of gears and shafts supported by bearings where at least one bearing is a plain bearing , and a lubrication system with a mechanical pump and an electrical pump for feeding the gears and the bearings with lubricant , wherein a difference between a volume capacity of the mechanical pump and the electrical pump is a maximum 40% , the method comprising the steps of controlling at least one valve for:feeding lubricant to the bearings, during start-up of the gearbox, via the electrical pump,feeding lubricant to the bearings and the gears, during normal operation of the gearbox, via the electrical pump and the mechanical pump, andfeeding lubricant to only the bearings, during absence of electrical power supply, via the mechanical pump.9. The method according to claim 8 , further comprising the step of claim 8 , during start-up of the gearbox claim 8 , feeding lubricant to the gears via the mechanical pump.10. The method according to claim 8 , further comprising the step of controlling a plurality of valves.11. The method ...

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Номер записи: 63
19-05-2016 дата публикации

Hybrid Vertical Axis Wind Turbine

Номер: US20160138568A1
Автор: Ghosh Anjik
Принадлежит:

A hybrid vertical axis wind turbine using a highly aerodynamic blade-profile is disclosed. The blade-profile is simple, asymmetrical with unequal upper and lower surfaces cambers and is capable of generating high starting torque even at low wind. Wind tunnel tests demonstrated that this aerodynamic profile would generate high torque of similar magnitude when wind comes from leading or trailing edge. Other characteristics of this profile are that it is compact, lightweight, durable and economical. The target users for this patent will be 44% of the world population that live in rural areas where roof-top wind turbine will be cost effective to provide enough household required electric power. This compact turbine can also use batteries to store energy, thereby reducing and possibly eliminating the need for grid power. 1. A hybrid vertical axis wind turbine structure comprising: a vertical rotating shaft at the center of the system; upper and lower hubs to accept a set of upper and lower rows of channel shaped horizontal beams with horizontal compartments; multiple blades each connected to the upper and lower horizontal beams; an upper outer shaft to protect the vertical rotating shaft that is placed between the hubs; an upper thrust bearing supported on an upper base-plate placed below the lower hub; a lower outer shaft to protect the rotating shaft placed below the lower hub; a plurality of magnets that are fixed on the outer surface of the vertical rotating shaft between the upper and lower base-plates; coils of copper wire wound helically on an insulated cylinder and connected to a power storage device at the bottom; a power storage means which is connected to the copper coil; a lower thrust bearing supported on the lower base-plate , which is supported directly on a foundation or on columns; and the multiple blades having a profile defined by; (i) a path difference between upper and lower surfaces as % of chord length is 20% , (ii) a path difference between chord ...

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Номер записи: 64
26-05-2016 дата публикации

METHOD AND SYSTEM FOR SERVICING WIND TURBINE ROTOR

Номер: US20160146183A1
Автор: Puls Ingo
Принадлежит:

A system for enabling servicing of a rotor of a wind turbine is provided. A rotor servicing fixture attaches to a first and second rotor blade, and contacts a wind turbine tower. A clamp assembly is connected to the rotor servicing fixture, and clamps onto a third rotor blade. The clamp assembly lowers the third rotor blade from a hub and raises it back to the hub. A lifting assembly is connected to the rotor servicing fixture and the clamp assembly, and is configured for raising and lowering the third rotor blade via the clamp assembly. A slide assembly is connected to the rotor servicing fixture, and is configured to support the rotor part and to slidably move the rotor part away from or towards the wind turbine. The system enables the rotor part to be removed or replaced without requiring the rotor to be removed from the wind turbine. 1. A system for enabling servicing of a rotor of a wind turbine comprising:a rotor servicing fixture configured to attach to and be supported by a first rotor blade and a second rotor blade, the rotor servicing fixture configured to contact a tower of the wind turbine;a clamp assembly connected to the rotor servicing fixture, the clamp assembly configured to clamp onto a third rotor blade, the clamp assembly configured to lower the third rotor blade from a hub and to raise the third lower blade back to the hub;a lifting assembly connected to the rotor servicing fixture and the clamp assembly, the lifting assembly configured for raising and lowering the third rotor blade via the clamp assembly;a slide assembly connected to the rotor servicing fixture, the slide assembly configured to support the rotor part and to slidably move the rotor part away from or towards the wind turbine; andwherein the system enables the rotor part to be removed or replaced without requiring the rotor to be removed from the wind turbine.2. The system of claim 1 , the rotor servicing fixture further comprising:a first leg and a second leg, both the first leg ...

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Номер записи: 65
04-06-2015 дата публикации

Dual-Turbine Wind Power Station Placed on a Vertical Axis

Номер: US20150152840A1
Автор: Kovacs Jeno Csongor, VARGA Istvan
Принадлежит:

The invention pertains to a dual-turbine wind power station arranged on a vertical axis, having a machine housing () constructed over a solid base, a roof-like structure () appropriate to its height, and an internal rotor () composed of a series of blades. The wind power station is characterised in that the external rotor (), which rotates in a direction opposite that of the internal rotor () and that is also composed of a series of blades, is arranged on a vertical axis it shares with the internal rotor (). The lower shaft ends () of the internal rotor () and external rotor () are furnished with lower sets of bearings (), while the upper shaft ends () are furnished with upper sets of bearings (), all sets of bearings providing for rotation motion about the vertical axis. The lower shaft ends () of the two rotors are connected to first and second electric energy-producing electric machines (), either directly, or with the aid of first and second transmission devices (). Connected directly to the machine housing () is an oval support structure () that surrounds the internal rotor () and external rotor (), which holds the rotors very stably by means of lower sets of bearings () and upper sets of bearings (), permitting them to rotate seamlessly. 1. A dual-turbine wind power station arranged on a vertical axis , comprising:a machine housing constructed over a solid base,an internal rotor comprising one or more blades,an internal shaft having a lower set of bearings at a point on its lower end and an upper set of bearings at a point on its upper end both of which provide for rotational motion of the shaft about the vertical axis of the internal shaft the lower end of which is connected to a first electric energy-producing electrical machine either directly, or with the aid of a first transmission devicean external rotor which rotates in a direction opposite to that of the internal rotor comprising one or more blades, an external shaft which rotates about the vertical ...

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Номер записи: 66
02-06-2016 дата публикации

Bearing and gear unit for wind turbines

Номер: US20160153426A1
Автор: Jens Groenager
Принадлежит: Individual

The economic efficiency of wind turbines improves by upscaling but the weight to strength ratio deteriorates. This is especially true for the large shaft and bearing of the rotor, the gearbox and the generator. Solutions to this was the gearless generator, getting heavy because the amount of magnetic material is inversely proportional to speed, or several smaller generators adapted to the wind on a distribution gear as shown in references (1), (2) and (3). The large roller bearing of the rotor has relatively large bearing clearance so only the top or lower rollers bear the entire weight of the rotor and thus must be dimensioned relatively large. The present invention spreads the load on the support bearing to more rollers and to smaller faster running and thereby lighter generators. It has the rotor attached to the outer ring, each roller rotatably mounted to the nacelle and the inner ring free wheeling. The outer and inner rings are relatively stiffer than the rotatable fixation of the upper rollers to the nacelle, so that the upper rollers flex slightly down under the weight of the rotor allowing some of the force of gravity to be transferred to the inner ring and on to the bottom relatively stiff journalled rollers. Gear teeth can be used to transfer torque to all rollers, or the inner ring pressed against the side rollers, or the conical rollers can be pressed dynamically in between the outer and inner ring with relatively constant force. This is shown in FIGS. 1 and 6 in perspective and FIG. 2 and FIG. 3 , in radial section. The relatively small roller shafts can now be used as PTO with gear ratio bearing diameter to roller diameter. The cost of the extra bearings for each roller is offset by savings in the usual center shaft and gear. Also, the friction from the edge of the outer or inner ring to keep the large rollers in place is missing. These benefits are especially important for wind turbines with heavy hub, axle and gear on a tall tower, and large wing ...

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Номер записи: 67
11-06-2015 дата публикации

MAIN BEARING ARRANGEMENT FOR A WIND TURBINE

Номер: US20150159631A1
Автор: Bitsch Michael Lundgaard
Принадлежит: VESTAS WIND SYSTEMS A/S

The invention provides a drive train for a horizontal axis wind turbine, comprising—a main shaft provided with a rotor attachment flange adapted to be connected to a rotor of the wind turbine, and—a main bearing housing having a main body at least partly enclosing the main shaft and extending from a first end to a second end, a distance from the second end to the rotor attachment flange being larger than a distance from the first end to the rotor attachment flange, the main body presenting at the second end a component attachment flange for a connection of the housing to a further drive train component,—the main bearing housing carrying the main shaft via a first bearing and a second bearing, a distance between the second bearing and the rotor attachment flange being larger than a distance between the first bearing and the rotor attachment flange,—the main bearing housing having a first seat for the first bearing, and a second seat for the second bearing,—the main bearing housing comprising a seat flange extending from the main body at least partly radially inwards, the second seat being located on a distal end of the seat flange. 1. A drivetrain for a horizontal axis wind turbine , comprisinga main shaft provided with a rotor attachment flange adapted to be connected to a rotor of the wind turbine, anda main bearing housing having a main body at least partly enclosing the main shaft and extending from a first end to a second end, a distance from the second end to the rotor attachment flange being larger than a distance from the first end to the rotor attachment flange, the main body presenting at the second end a component attachment flange for a connection of the housing to a further drivetrain component,the main bearing housing carrying the main shaft via a first bearing and a second bearing, a distance between the second bearing and the rotor attachment flange being larger than a distance between the first bearing and the rotor attachment flange,the main bearing ...

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Номер записи: 68
18-06-2015 дата публикации

Wind turbine hub

Номер: US20150167634A1
Автор: Laia ESTEBAN, Ricardo Lázaro
Принадлежит: Alstom Renewable Technologies Wind BV

In a first aspect, the invention provides a hub to be mounted on a wind turbine having a frame to be surrounded by the hub. The hub comprises a front bearing seat and a rear bearing seat for rotatably mounting the hub on the frame through respective front and rear bearings, in such a way that the frame is provided at least partially internally of the hub. The hub further comprises a plurality of beams connecting the front bearing seat and the rear bearing seat. In a second aspect, the invention provides a wind turbine comprising a hub according to the first aspect of the invention and a frame surrounded by the hub. The hub is rotatably mounted on the frame through respective front and rear bearings, in such a way that the frame is provided at least partially internally of the hub.

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Номер записи: 69
18-06-2015 дата публикации

MAGNET CONFIGURATIONS FOR MAGNETIC LEVITATION OF WIND TURBINES AND OTHER APPARATUS

Номер: US20150167639A1
Автор: Choi Cheong S., Jenkins Michael Anthony
Принадлежит: Regenedyne LLC

A wind turbine having one or more magnets for reducing friction between the turbine support and a turbine rotor. The reduction of friction between the turbine rotor and the turbine support allows for an increase in energy production and scale of the wind turbines. The magnet configuration employs a ring of cylindrically-shaped magnets at the bottom and opposed by a corresponding number of generally rectangular-shaped magnets. Bearing magnets are also employed for axial stabilization. 1. A wind turbine , comprising:a turbine rotor;a turbine support;a first magnet set located on a lower surface of said turbine rotor, magnets therein having a generally rectangular shape and disposed in a ring along said lower surface of said turbine rotor; anda second magnet set located on an upper surface of said turbine support, magnets therein having a generally cylindrical shape, each of said cylindrically-shaped magnets being disposed in a ring and substantially aligned below a respective rectangularly-shaped magnet in said first magnet set,whereby, in operation, a space between said first magnet set on said turbine rotor and said second magnet set on said turbine support opens, wherein the space is created by the magnet sets in opposition.2. The wind turbine according to claim 1 , wherein the turbine support further comprises:a support shaft and a base.3. The wind turbine according to claim 2 , wherein the base further comprises:a platform located substantially under a bottom of the base.4. The wind turbine according to claim 2 , further comprising:one or more stabilization magnet sets, wherein the one or more stabilization magnet sets are configured to form a space between the support shaft and the turbine rotor.5. The wind turbine according to claim 1 , wherein the cylindrically-shaped magnets are about 1.5 inch in diameter.6. The wind turbine according to claim 1 , wherein the cylindrically-shaped magnets are about 0.75 inches in height.7. The wind turbine according to claim 1 ...

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Номер записи: 70
18-06-2015 дата публикации

SYSTEM AND METHOD TO PROVIDE FOR ACCURATE ALIGNMENT WHEN MOUNTING A WIND TURBINE BLADE

Номер: US20150167641A1
Автор: Möller Thomas
Принадлежит:

A system and method of mounting a wind turbine blade is described, designed to aid in the guiding and alignment of wind turbine blade roots with hub-side components, e.g. a blade pitch system. Furthermore, the system is operable to reduce the effect of blade root ovalisation. At least one circular collar is provided which can bear against at least a section of the mounting elements, e.g. blade root bushings, projecting from the root end of a wind turbine blade. The collar acts to absorb the forces pushing the blade root towards an oval shape, thereby providing for improved handling of blade root ovalisation and ensuring accurate radial alignment of mounting elements, e.g. stay bolt bores and blade root bushings. Such an improved alignment system reduces the likelihood of bolt failure as a result of component misalignments. 1. A wind turbine comprising a rotor having a substantially horizontal rotor shaft , the rotor comprising a hub and at least one wind turbine blade extending in a substantially radial direction therefrom , the wind turbine blade having a tip end and a substantially circular root end ,wherein a plurality of bushings project from said root end of said at least one wind turbine blade for mounting said at least one wind turbine blade to a hub, an extender, or a pitch ring coupled to said rotor, wherein a corresponding plurality of apertures are defined on a mounting surface of said hub, extender, or pitch ring,the apertures and the bushings arranged to receive a plurality of bolts to mount said at least one wind turbine blade to said hub, extender, or pitch ring,wherein said wind turbine comprises at least one guiding surface extending adjacent said apertures, the guiding surface acting to align said bushings with said apertures such that a free end of said bushings bear against the mounting surface adjacent said apertures, andwherein said guiding surface is substantially orthogonal to said mounting surface.2. The wind turbine of claim 1 , wherein ...

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Номер записи: 71
11-09-2014 дата публикации

SYSTEM AND METHOD FOR RE-INDEXING A PITCH BEARING OF A WIND TURBINE

Номер: US20140255186A1
Автор: Kulasekera Vishan Rashmi, Moore Bradley Graham, NEUMANN Ulrich, Yenigun Esat Sadi
Принадлежит: GENERAL ELECTRIC COMPANY

A method and system for re-indexing a pitch bearing of a wind turbine includes: installing a plurality of first mounts to the fixed outer race of the pitch bearing; positioning the rotor blade to a downwardly-oriented; installing a hydraulic system; pressurizing the hydraulic system so as to support the weight of the rotor blade with the hydraulic system; detaching the rotor blade from the pitch bearing; lowering the rotor blade a predetermined vertical distance from the hub; installing a plurality of second mounts to the rotor blade; attaching a plurality of supports between the first mounts and the second mounts; transferring the weight of the rotor blade from the hydraulic system to the plurality of supports; disengaging the hydraulic system; and re-indexing the pitch bearing so as to engage a new set of pitch bearing teeth.

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Номер записи: 72
18-09-2014 дата публикации

TOOLS AND METHODS FOR UPTOWER MAINTENANCE

Номер: US20140259590A1
Автор: Eddy Jason W., Elliott Jesse E., Sebert Michael A.
Принадлежит: Broadwind Energy, Inc.

Tools, systems, and methods for use in conjunction with maintenance, assembly, rebuilding, or other procedures which involve displacing components of an assembly are disclosed. These tools, systems, and methods may be used in conjunction with a crane or other lifting device and may be configured to assemble, disassemble, or otherwise maintain components of an uptower gearbox. 1. A method of maintaining an uptower wind turbine gearbox comprising:coupling a lifting device to a housing component of the gearbox and displacing the housing from the gearbox such that at least one gear is exposed;coupling the lifting device to a gear of the gearbox and displacing the gear from the gearbox;coupling the lifting device to a plate of the gearbox and displacing the plate from the gearbox;coupling the lifting device to a planet carrier of the gearbox and displacing the planet carrier from the gearbox;coupling the lifting device to a first planet gear of the gearbox and displacing the planet gear from the gearbox; andcoupling the lifting device to a ring gear and displacing the ring gear from the gearbox.2. The method of claim 1 , further comprising installing a clamp configured to resist rotation of the gearbox components during the procedure.3. The method of claim 1 , further comprising displacing a plurality of planet gears from the gearbox.4. The method of claim 1 , further comprising installing a secondary rotor lock configured to resist rotation of the gearbox components.5. The method of claim 1 , wherein the lifting device comprises a crane.6. The method of claim 5 , wherein the crane is sized to lift components of the gearbox but not the entire gearbox.7. The method of claim 5 , further comprising coupling a lifting tool to the crane.8. The method of claim 7 , further comprising coupling one or more adaptors to the lifting tool claim 7 , each adaptor configured to couple the lifting tool to one or more components of the gearbox.9. The method of claim 1 , further comprising ...

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Номер записи: 73
23-06-2016 дата публикации

DOUBLE-ROW SPHERICAL ROLLER BEARING, MANUFACTURING METHOD AND WIND TURBINE BEARING ARRANGEMENT

Номер: US20160178001A1
Автор: BJORKMAN Emma, James Peter, LOOF Marcus, Stigsjoo Lars
Принадлежит: AKTIEBOLAGET SKF

A double-row spherical roller bearing comprising an outer ring which presents a first and a second spherical raceway on a radially inner peripheral surface, an inner ring which presents a first and a second outer curved-shaped raceway. Moreover, roller elements are arranged in a first and second roller row being axially displaced from each other, and arranged in-between the respective first and second inner raceways of the outer ring and the first and second outer raceways of the inner ring. The outer ring includes a first groove on the radially inner peripheral surface located in-between the first and second inner raceways, extending radially outwardly and in the circumferential direction of the ring. The first and second inner raceways have hard turned surfaces. The first groove presents a hardened surface which has not undergone any post-hardening machining operation. The double-row spherical roller bearing can be a wind turbine bearing arrangement. 1. A double-row spherical roller bearing , comprising ,an outer ring presenting a first spherical raceway and a second spherical raceway on a radially inner peripheral surface;an inner ring presenting at least one radially outer curved-shaped raceway;roller elements arranged in a first roller row and a second roller row being axially displaced from each other, the roller elements being arranged in-between the respective first inner raceway and the respective second inner raceway of the outer ring and the at least one outer raceway of the inner ring; anda first groove, the first groove being formed on the radially inner peripheral surface on the outer ring located in-between the first inner raceway and the second inner raceway, extending radially outwardly, in the circumferential direction,wherein the first inner raceway and the second inner raceway present hard machined surfaces,wherein the first groove presents a hardened surface which has not undergone any post-hardening machining operation.2. The double-row ...

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Номер записи: 74
23-06-2016 дата публикации

Double-row spherical roller bearing

Номер: US20160178002A1
Автор: Emma BJORKMAN, Lars Stigsjöö, Marcus LOOF, Peter James
Принадлежит: SKF AB

A double-row spherical roller bearing, comprising: an outer ring having an radially inner spherical raceway and a radially outer peripheral surface, an inner ring having a radially outer curved-shaped raceway, and roller elements arranged in two axially displaced rows. The outer ring includes an outer peripheral surface first circumferential groove. The first circumferential groove has an axial outer peripheral surface width X fulfilling the following relation: L 1 ≦X≦L 2 , L 2 extends between first end point (intersecting the first normal vector and the outer peripheral surface) and second outer peripheral surface axial end points (intersecting a second normal vector and the outer peripheral surface). The first normal vector is an inverted normal vector of the outer raceway. The second normal vector is an inverted normal vector of the inner raceway. L 1 has a length of L 2 *⅓ . End points of L 1 are located equidistant to each respective first and second end point of L 2 .

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Номер записи: 75
30-06-2016 дата публикации

SYSTEM AND METHODOLOGY FOR A WIND TURBINE

Номер: US20160186728A1
Автор: Mazur Ed
Принадлежит:

A wind turbine having discrete sets of magnets on the turbine support and the turbine rotor, creating repelling forces and spaces therebetween. The reduction of friction between the turbine rotor and the turbine support allows for an increase in energy production and scale of the wind turbines. 1. A wind turbine , comprising:a turbine support having a lower portion and a vertical portion;an upper surface of said lower portion having a plurality of levitation magnets positioned thereon;said vertical portion of said turbine support being cylindrically shaped and having a plurality of stabilization magnets positioned thereon;a turbine rotor having a central portion and a lower portion; saidcentral portion of said turbine rotor configured to receive said vertical portion of said turbine support therein,said central portion having a plurality of stabilization magnets positioned on said central portion, said plurality of stabilization magnets on said central portion being positioned opposing said plurality of stabilization magnets on said central portion, the opposition creating and maintaining a first space therebetween;said lower portion of said turbine rotor having a plurality of levitation magnets positioned thereon, said plurality of levitation magnets on said lower portion being positioned opposing said plurality of levitation magnets on said upper surface, the opposition creating and maintaining a second space therebetween;a plurality of blades coupled to said turbine rotor; andat least one generator configured to generate electric power from the movement of said wind turbine by wind.2. The wind turbine according to claim 1 , wherein said turbine rotor covers said vertical portion of said turbine support.3. The wind turbine according to claim 1 , wherein said turbine rotor does not cover said vertical portion of said turbine support.4. The wind turbine according to claim 1 , wherein said turbine support further comprises an upper portion having a plurality of ...

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Номер записи: 76
18-09-2014 дата публикации

Assembly for Pitch Control System

Номер: US20140271202A1
Автор: Blanton Jeffrey Todd
Принадлежит:

In accordance with example embodiments, an assembly may include a first interfacing member, a second interfacing member, a first bearing between the first interfacing member and the second interfacing member, and a set of rollers between the second interfacing member and a shaft of the first interfacing member. In example embodiments the first interfacing member may include a first mounting portion and the second interfacing member may include a second mounting portion. In example embodiments, the first mounting portion may be configured to attach to a first structure, for example a wind turbine blade, and the second mounting portion may be configured to attach to a second structure, for example, a hub of a wind turbine. 1. An assembly comprising:a first interfacing member having a first mounting portion and a shaft;a second interfacing member having a second mounting portion, the second interfacing member being arranged on a second side of the first interfacing member;a first bearing between the first interfacing member and the second interfacing member; anda set of rollers between the second interfacing member and the shaft of the first interfacing member.2. The assembly according to claim 1 , wherein the set of rollers are configured to allow the first interfacing member to rotate relative to the second interfacing member.3. The assembly according to claim 2 , wherein the first interfacing member contacts a first bearing plate of the first bearing and the second interfacing member contacts a second bearing plate of the first bearing.4. The assembly according to claim 3 , wherein the first bearing includes a plurality of rollers between the first bearing plate and the second bearing plate.5. The assembly according to claim 1 , further comprising:a cover on a second side of the second interfacing member; anda second bearing between the cover and the second interfacing member.6. The assembly according to claim 5 , wherein the cover contacts the shaft of the first ...

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Номер записи: 77
09-07-2015 дата публикации

WIND TURBINE GEARBOX

Номер: US20150192110A1
Автор: Pedersen Troels
Принадлежит: VINDG A/S

The present invention relates to a gearbox for a wind turbine comprising: an input shaft portion adapted to be operatively connected to a wind turbine rotor shaft; and input hear wheel having teeth arranged around an outer or inner circumference of the wheel, and being attached to the input shaft portion such as to rotate with the input portion; one or more pinions including a pinion wheel arranged on a pinion shaft, the pinion wheel having teeth arranged to engage with the teeth of the input gear wheel, and the pinion shaft being rotatably mounted in a pinion support structure, wherein the input shaft portion is rotatably mounted with respect to the pinion support structure. 118-. (canceled)19. A wind turbine comprising:a reference structure,a rotor having a rotor hub and one or more rotor blades,a rotor shaft connected to the rotor hub,a generator, anda gearbox comprising an input shaft adapted to be operatively connected to the rotor shaft,an input gear wheel having teeth arranged around an inner circumference of the wheel, and being attached to the input shaft such as to rotate with the input shaft, wherein the input gear wheel is an annulus gear wheel,one or more pinions including a pinion wheel arranged on a pinion shaft, the pinion gear wheel having teeth arranged to engage with the teeth of the input gear wheel, and the pinion shaft being rotatably mounted in a pinion support structure, wherein the input shaft is rotatably mounted with respect to the pinion support structure, wherein the pinion support structure is flexibly mounted with respect to the reference structure,wherein the pinion shaft is connected directly to the generator,wherein the gearbox has two or more degrees of freedom in a connection between pinion support structure and the reference structure, andwherein the rotor shaft is rotatably mounted with respect to the reference structure, wherein the reference structure is a frame or housing of the gearbox and a nacelle.20. The wind turbine ...

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Номер записи: 78
14-07-2016 дата публикации

DOUBLE-ROW SPHERICAL ROLLER BEARING

Номер: US20160201720A1
Автор: BJORKMAN Emma, James Peter, LOOF Marcus, Stigsjoo Lars
Принадлежит: AKTIEBOLAGET SKF

A double-row spherical roller bearing, comprising an outer ring including at least one spherical inner raceway on a radially inner peripheral surface, an inner ring including a first and second axial end and at least one outer raceway on a radially outer peripheral surface. Spherical roller elements are located in first and second roller rows interposed in-between the inner and outer raceways. A first flange is located at the first axial end, extending in a circumferential direction of the outer peripheral surface. The inner ring is subjected to an axial load in a first axial direction wherein the first flange approaches the first roller row. An axial extension of the first flange extends without contacting any first roller row roller elements during bearing operation, when an axial load is acting on the inner ring in the first axial direction. The bearing can be integrated into a wind turbine. 1. A double-row spherical roller bearing , comprising:an outer ring presenting at least one spherical inner raceway on a radially inner peripheral surface;an inner ring presenting a first axial end and a second axial end and at least one outer raceway on a radially outer peripheral surface;spherical roller elements located in a first roller row and a second roller row interposed in-between the at least one inner raceway and the at least one outer raceway; and{'sub': '1', 'a first flange located at the first axial end and extending in the circumferential direction of the outer peripheral surface, wherein a first axial gap Δis located in-between the first flange and the adjacent first roller row,'}wherein the inner ring is adapted to be subjected to an axial load in a first axial direction such that the first flange approaches the first roller row;{'sub': '1', 'wherein, during operation of the bearing, the first axial gap Δwill not decrease to zero when the axial load is acting on the inner ring in the first axial direction.'}2. The double-row spherical roller bearing according ...

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Номер записи: 79
30-07-2015 дата публикации

COATED COMPONENT OF A WIND TURBINE

Номер: US20150211495A1
Автор: FRANDSEN RASMUS BERG
Принадлежит:

A component with a coating, wherein the component is a part of a wind turbine, the component is in contact with a lubricant and the lubricant comprises atomic hydrogen, is provided. The coating at least partly covers a surface of the component. The coating reduces diffusion of the atomic hydrogen into the component by a means of inducing a recombination of the atomic hydrogen to hydrogen gas. A method of reducing diffusion of atomic hydrogen into a component of a wind turbine by using such a coating is also provided. 1. A component with a coating , wherein the component is a part of a wind turbine , the component is in contact with a lubricant and the lubricant comprises atomic hydrogen , and the coating at least partly covers a surface of the component , wherein the coating reduces diffusion of the atomic hydrogen into the component by a means of inducing a recombination of the atomic hydrogen to hydrogen gas.2. The component according to claim 1 , wherein the component is in relative motion with regard to a further component of the wind turbine.3. The component according to claim 2 , wherein the component is in direct contact with the further component.4. The component according to claim 2 , wherein the atomic hydrogen is a product of partial decomposition of the lubricant due to at least one of a tribological interaction between the component and the further component and electrical currents running through the lubricant.5. The component according to claim 1 , wherein the component is a main bearing of the wind turbine.6. The component according to claim 5 , wherein the component comprises at least one of a rolling element and a raceway of the main bearing.7. The component according to claim 1 , wherein the component comprises steel.8. The component according to claim 1 , wherein an average thickness of the coating is below 10 micrometers.9. The component according to claim 1 , wherein the coating comprises a solid catalyst claim 1 , for inducing the ...

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Номер записи: 80
02-10-2014 дата публикации

Turbine Main Bearing Lubrication

Номер: US20140294586A1
Автор: Richard Smith
Принадлежит: Romax Technology Ltd

A greased-based lubrication system for a main bearing arrangement of a wind turbine can be replaced with an oil-based lubrication system by: disconnecting an upwind bearing cover 12 and/or a downwind bearing cover 12 from the bearing housing 10; cleaning grease from the bearing arrangement; connecting an upwind oil drain cover 14 to the upwind side of the bearing housing 10; and connecting a downwind oil drain cover 14 to the downwind side of the bearing housing 10. At least one of the upwind oil drain cover 14 and the downwind oil drain cover 14 include one or more outlets for an oil-based lubricant. Further steps include: connecting the one or more outlets to an oil-based lubrication system; and introducing oil-based lubricant into the bearing arrangement. This means that the greased-based lubrication system, in which debris from bearing wear accumulates and does not escape from the bearing, contributing to further wear and damage can be replaced with an oil-based lubrication system, in which the quality of the lubricant can be monitored, its temperature can be controlled, and debris can be removed by filtration. The invention also includes an oil drain cover 14.

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Номер записи: 81
06-08-2015 дата публикации

WIND TURBINE ROTOR SHAFT ARRANGEMENT WITH EXPANDING ATTACHMENT PORTION

Номер: US20150219076A1
Автор: LEANDER Håkan, Wendeberg Hans
Принадлежит:

A wind turbine rotor shaft arrangement comprising a rotor shaft, a first support structure for supporting the rotor shaft, and a first rolling bearing arranged to support the rotor shaft in relation to the first support structure. The first rolling bearing comprises an inner ring, an outer ring, a set of rolling elements, and an attachment portion for securing the inner ring. The attachment portion comprises an radially outer support surface, wherein the radially outer support surface of the attachment portion is expanded radially outwards for securing the inner ring by an expansion member being driven into the attachment portion. A method for manufacturing a wind turbine rotor shaft arrangement. 1. A wind turbine rotor shaft arrangement , comprising:a rotor shaft for supporting wind turbine blades,a non-rotating first support structure for supporting the rotor shaft, which first support structure is arranged to be mounted to a wind turbine nacelle framing,a first rolling bearing arranged to support the rotor shaft in relation to the first support structure at a first support point, which first rolling bearing comprises an inner ring, an outer ring, and a set of rolling elements arranged in an intermediate configuration between the inner and outer rings, andan attachment portion for securing the inner ring, which attachment portion comprises a radially outer support surface,wherein a radially inner support surface of the inner ring is abutting the radially outer support surface,wherein the radially outer support surface of the attachment portion is expanded radially outwards for securing the inner ring by an expansion member being driven into the attachment portion.2. The wind turbine rotor shaft arrangement according to claim 1 , wherein the attachment portion comprises an expansion chamber and wherein the expansion member is driven into the expansion chamber of the attachment portion.3. The wind turbine rotor shaft arrangement according to claim 2 , wherein the ...

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Номер записи: 82
13-08-2015 дата публикации

SYSTEM AND METHODOLOGY FOR WIND COMPRESSION

Номер: US20150226182A1
Автор: Mazur Edward
Принадлежит:

A wind compressor system having one or more wind turbines and a plurality of wind compressors located proximate the one or more wind turbines. The wind compressors optimize the energy created by the wind turbines by redirecting and converging the wind from the wind compressor to the wind turbines. Each of the wind compressors comprises an obstruction having a size and shape adapted to converge the wind currents by means of a Venturi effect toward the one or more turbines thereby increasing the velocity and force of the wind hitting the wind turbine. A plurality of transporters coupled to the wind compressors. The transporters configured to move at least one wind compressors to a location that maximizes the force of the wind encountered by the turbine. 1. A wind compressor system comprising:at least one wind turbine; andat least one wind compressor arranged about said at least one wind turbine, and obstructing and redirecting ambient wind striking said at least one wind compressor to said at least one wind turbine,a controller, said controller configured to monitor the position of said at least one wind compressor relative to the position of said at least one wind turbine,wherein said redirected ambient wind turns blades of at least one rotor within said at least one wind turbine, andwherein said at least one rotor is magnetically levitated during operation by at least one magnet,whereby friction is reduced.2. The wind compressor system according to claim 1 , wherein said controller is configured to adjust the position of said at least one wind compressor based upon the direction of said ambient wind.3. The wind compressor system according to claim 2 , wherein said controller automatically changes the position of said at least one wind compressor to another position to optimally harness the ambient wind.4. The wind compressor system according to claim 2 , wherein said at least one wind compressor comprises at least two wind compressors claim 2 , said controller ...

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Номер записи: 83
13-08-2015 дата публикации

ELASTIC SELF-ALIGNING BEARING

Номер: US20150226186A1
Автор: Glanzner Sebastian, Hanus Karl-Heinz, MITSCH Franz
Принадлежит: ESM ENERGIE-UND SCHWINGUNGSTECHNIK MITSCH GMBH

A teeter bearing, preferably for use in wind turbines, which is built up from elastic, in particular conical multilayered spring elements, which can optionally be varied in their stiffness behaviour by hydraulic devices and are arranged constructively in the region of the rotor hub so that they are consequently highly suitable both for adjustment of the rotor blades and also for reduction of undesired forces transmitted to the turbine through the rotor blades. In particular, the teeter bearings are suitable for use in one- and two-bladed rotor wind turbines. 120-. (canceled)219. A teeter bearing () comprising:{'b': 10', '3, 'an inner bushing (), which is able to accommodate the shaft or teeter shaft () or the main shaft for the teeter bearing, and'}{'b': 11', '10', '4, 'a surrounding outer bushing (), which is connected to the inner bushing () and comprises tensionable elastic elements () which are built up from elastic layers and non-elastic interlayers,'}{'b': 4', '4', '11', '10', '12, 'wherein the elastic elements used are at least four multilayered springs () having a round or elliptical base shape, where the elastic elements () in the interior of the outer bushing () are arranged in a radial distribution around the inner bushing () and have tensioning devices (), enabling the thickness of the elastic multilayered springs, and thus the pretensioning, to be adjusted and changed to the respective regions of the inner bushing and thus of the teeter shaft independently of one another.'}224. The teeter bearing according to claim 21 , wherein the multilayered springs () are conical.2343. The teeter bearing according to claim 22 , wherein a broader cone surface of the multilayered springs () faces in a direction of the inner bushing carrying the teeter shaft ().244. The teeter bearing according to claim 21 , wherein the multilayered springs () are cylindrically ellipsoidal.254. The teeter bearing according to claim 21 , wherein the multilayered springs () are ...

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Номер записи: 84
13-08-2015 дата публикации

ROLLER BEARING, RETAINER SEGMENT OF ROLLER BEARING FOR SUPPORTING MAIN SHAFT OF WIND-POWER GENERATOR

Номер: US20150226262A1
Автор: NAKAMIZO Eiichi, OMOTO Tatsuya, SAKAGUCHI Tomoya
Принадлежит:

A tapered roller bearing () has a plurality of retainer segments () each having a pocket to house a tapered roller (), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring () and an inner ring (). The retainer segment () is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance () is provided between the first retainer segment () and the last retainer segment () after the plurality of retainer segments () have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance () is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment () and smaller than 0.12% thereof at room temperature. 16-. (canceled)7. A roller bearing comprising:an outer ring;an inner ring;a plurality of rollers arranged between said outer ring and said inner ring; anda plurality of retainer segments each having a pocket to house said roller, and arranged so as to be continuously lined with each other in a circumferential direction between said outer ring and said inner ring, whereinsaid retainer segment is formed of a resin containing a filler material to lower a thermal linear expansion coefficient,a clearance is provided between the first retainer segment and the last retainer segment after said plurality of retainer segments have been arranged in the circumferential direction without providing any clearance, anda circumferential range of said clearance is larger than 0.075% of a circumference of a circle passing through a center of said retainer segment and smaller than 0.12% thereof, at room temperature, whereinsaid retainer segment has a plurality of column parts extending along a rotation axis of the bearing so as to form pockets to house said rollers, and a connection part extending in the circumferential direction so as to connect the plurality of column ...

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Номер записи: 85
23-10-2014 дата публикации

Wind Turbine Gearbox Lubrication System

Номер: US20140314569A1
Автор: Benson Ronald E., Michaud Mark D., SROKA Gary J., Winkelmann Lane
Принадлежит:

A wind-turbine gearbox system includes an input gear stage having mating gear surfaces finished to a surface roughness of less than 0.25 micron and at least one bearing supporting the input gear stage. A lubrication circuit is arranged to deliver lubricant to the input gear stage and the bearing during operation of the wind-turbine and includes an inline filter for removal of particles of less than 2 micron from the lubricant prior to delivery. A lubricant for use in the system may have a relatively low viscosity compared to conventional wind turbine gearbox lubricants. 1. A wind-turbine gearbox system comprising:an input gear stage having mating gear surfaces finished to a surface roughness Ra of less than 0.25 micron;at least one bearing supporting the input gear stage;a lubrication circuit arranged to deliver lubricant to the input gear stage and the bearing during operation of the wind-turbine and comprising an inline filter having a nominal pore size for removal of particles greater than 2 micron, preferably greater than 1 micron, from the lubricant prior to delivery; anda quantity of lubricant in the lubrication circuit, the lubricant having an ISO VG of between 68 and 300.2. The system of claim 1 , wherein the lubricant has an ISO VG between 100 and 220.3. The system of claim 1 , wherein the lubricant has an ISO VG around 150.4. The system of claim 1 , further comprising a high-speed gear stage and a high-speed bearing claim 1 , wherein the high speed gear stage comprises mating gear surfaces finished to a surface roughness Ra of less than 0.25 micron.5. The system of claim 1 , wherein one or more bearings are also finished to a surface roughness Ra of less than 0.25 micron.6. The system of claim 1 , wherein the system is rated to a capacity of more than 1 MW.7. The system of claim 1 , wherein the system is rated to a capacity of more than 1.5 MW.8. The system of claim 1 , wherein the lubrication circuit comprises a pump and the inline filter is located on a ...

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Номер записи: 86
20-08-2015 дата публикации

WIND TURBINE BLADE WITH FASTENING MEANS

Номер: US20150233260A1
Автор: Garm Jesper Hasselbalch
Принадлежит:

A wind turbine blade having a circular root portion and provided with root bushings for mounting the blade to a wind turbine hub is described. The root bushings comprise an elongated cross-sectional profile with a first dimension oriented along a radius of the circular root portion being larger than a second dimension oriented along a circumferential direction of the circular root section. 110281081614. A wind turbine blade () for a rotor of a wind turbine () , said rotor comprising a hub () , from which the blade () extends substantially in a radial direction when mounted to the hub () , the wind turbine blade including a shell structure of a fibre-reinforced composite material comprising fibres embedded in a polymer matrix , the blade having a longitudinal direction (r) with a tip end () and a root end () and a transverse direction as well as having a blade length (L) , the blade further comprising:{'b': 18', '20, 'claim-text': [{'b': 30', '29, 'a root region () comprising a root end face (),'}, {'b': '34', 'an airfoil region () having a lift-generating profile furthest away from the hub, and'}, {'b': 32', '30', '34, 'optionally a transition region () between the root region () and the airfoil region (), wherein'}], 'a profiled contour including a pressure side and a suction side, as well as a leading edge () and a trailing edge () with a chord having a chord length (c) extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift, wherein the profiled contour comprises{'b': 36', '35', '30', '40', '48', '30', '40', '10', '8, 'claim-text': {'b': 40', '44', '46', '44', '42, 'the fastening members () comprise a first end () arranged at the root end face, a second end () opposite the first end () thereof and an outer periphery (), characterised in that'}, 'the root region comprises a ring-shaped cross section with an outer surface () and an inner surface (), wherein the root region () comprises a plurality of elongated ...

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Номер записи: 87
20-08-2015 дата публикации

VERTICAL AXIS WIND TURBINE

Номер: US20150233346A1
Автор: Dano Bertrand, Zha GeCheng
Принадлежит:

A vertical axis wind turbine formed from an arrangement of fixed stator blades to provide fluid flow acceleration into an arrangement of rotatable blades secured to a generator for invoking electrical power generation. The stator blades are maintained in position by use of a stator plate. Rotor blades are coupled to the generator. The amount of stator and rotor blades may be scaled in number and size depending upon the type of generator to be driven and associated mechanical energy to be obtained. The stator blades are designed for air deflection in a direction for optimal rotor blade rotation by accelerating air flow into a pre-swirl before the flow contacts the rotor blades. Each stator blade is oriented at a sufficient stagger angle so that an angle of the relative velocity does not exceed the stall angle of said rotor blade. 1. A wind turbine securable to a generator for invoking electrical power generation , said turbine comprising: a stator section formed from a plurality of geometrically shaped and vertically positioned stator blades having a leading edge and a trailing edge with an upper surface shaped convexly from said stator blade leading edge to said stator blade trailing edge and a pressure surface shaped concavely from said leading edge to said trailing edge , each said stator blade having an upper end secured to a fixed stator top plate and a lower end secured to a fixed stator bottom plate , each stator blade oriented to provide a stagger angle wherein said upper surface of said stator blade constructed and arranged to accelerate a fluid flow; a rotor section formed from a plurality of geometrically shaped vertical blades having a leading edge and a trailing edge with an upper surface shaped convexly from said rotor blade leading edge to said rotor blade trailing edge and a lower surface shaped concavely from said rotor blade leading edge to said rotor blade trailing edge , each rotor blade having an upper end secured to a rotatable top plate and a ...

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Номер записи: 88
11-08-2016 дата публикации

WIND TURBINE WITH DUAL BLADE ASSEMBLIES

Номер: US20160230744A1
Автор: Boyle Calvin, Frank Tyler, Hicken Kyle, Manganaro Ross, Novelli Paul, Robinson Brandon
Принадлежит:

A wind turbine including a housing, an electrical generation unit including a field magnet and an armature, the electrical generation unit being rotatably disposed within the housing, a first blade assembly non-rotatably fixed to one of the field magnet and the armature of the electrical generation unit, and a second blade assembly non-rotatably fixed to the other of the field magnet and the armature of the electrical generation unit, wherein the first blade assembly rotates in a first direction with respect to the housing and the second blade assembly rotates in an opposite second direction with respect to the housing. 1. A wind turbine , comprising:a housing;a generator including a field magnet and an armature, the generator being rotatably disposed within the housing;a first blade assembly non-rotatably fixed to one of the field magnet and the armature of the generator; anda second blade assembly non-rotatably fixed to the other of the field magnet and the armature of the generator,wherein the first blade assembly rotates in a first direction with respect to the housing and the second blade assembly rotates in an opposite second direction with respect to the housing.2. The wind turbine of claim 1 , further comprising a radial bearing assembly including an outer race non-rotatably fixed to an inner surface of the housing claim 1 , an inner race non-rotatably fixed to an outer surface of the generator claim 1 , and a plurality of roller elements in rolling contact with claim 1 , and disposed between claim 1 , the inner race and the outer race of the radial bearing assembly.3. The wind turbine of claim 2 , wherein the plurality of roller elements is a plurality of ball roller elements.4. The wind turbine of claim 2 , wherein the plurality of roller elements is a plurality of cylindrical roller elements.5. The wind turbine of claim 1 , wherein the first blade assembly is non-rotatably fixed to the field magnet of the generator and the second blade assembly is non- ...

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Номер записи: 89
30-10-2014 дата публикации

ARRANGEMENT TO CONTROL THE CLEARANCE OF A SLIDING BEARING

Номер: US20140321781A1
Автор: Pedersen Bo, Thomsen Kim
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

An arrangement to control the clearance of a sliding bearing is disclosed. A sliding bearing arrangement, of a direct driven wind turbine, comprises a bearing. The bearing comprises a first bearing shell and a second bearing shell, whereby the first bearing shell and the second bearing shell are arranged rotatable in respect to each other. A certain predetermined clearance is present between the first bearing shell and the second bearing shell, while the bearing is in rotation. A first circuit comprises a first fluid, while the first circuit is in thermal contact with the first bearing shell. A second circuit comprises a second fluid, while the second circuit is in thermal contact with the second bearing shell. The first circuit and the second circuit are coupled in a way that a difference in the temperature between the first bearing shell and the second bearing shell is compensated via the first and the second fluid, thus the clearance is kept within a predetermined range. 1. A sliding bearing arrangement of a direct driven wind turbine , comprising:a bearing, having a first bearing shell and a second bearing shell,whereby the first bearing shell and the second bearing shell are arranged rotatable in respect to each other,wherein a certain predetermined clearance is present between the first bearing shell and the second bearing shell, while the bearing is in rotation,a first circuit comprising a first fluid, while the first circuit is in thermal contact with the first bearing shell,a second circuit comprising a second fluid, while the second circuit is in thermal contact with the second bearing shell,whereby the first circuit and the second circuit are coupled in a way that a difference in the temperature between the first bearing shell and the second bearing shell is compensated via the first and the second fluid, thus the clearance is kept within a predetermined range.2. The sliding bearing arrangement according to wherein the first circuit and the second circuit ...

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Номер записи: 90
27-08-2015 дата публикации

GEARBOX UNIT WITH GEAR CARRIER

Номер: US20150240790A1
Автор: Kienzle Alfred, Witzig Jochen
Принадлежит: ZF FRIEDRICHSHAFEN AG

A transmission unit (), particularly for a wind power plant, which has a first planetary stage (), on the drive input side, a second planetary stage () and a third planetary stage (), on the drive output side, which are coupled with one another in such a manner that a torque from the drive input side can be divided between the first and the second planetary stages () and recombined in the third planetary stage (). The first, the second and the third planetary stages () have a common gearwheel carrier () which is mounted for rotation about a rotational axis of the transmission unit (). 111-. (canceled)121. A transmission unit () comprising:{'b': '2', 'a first planetary stage () on a drive input side,'}{'b': '3', 'a second planetary stage (),'}{'b': '4', 'a third planetary stage () on a drive output side,'}{'b': 2', '3', '4', '2', '3', '4, 'the first, the second and the third planetary stages (; ; ) being coupled with one another in such a manner that torque from the drive input side can be divided between the first and the second planetary stages (; ) and recombined in the third planetary stage (), and'}{'b': 2', '3', '4', '20', '1, 'the first, the second and the third planetary stages (; ; ) having a common gearwheel carrier () which is mounted to rotate about a rotational axis of the transmission unit ().'}13205678910141516234. The transmission unit according to claim 12 , wherein the common gearwheel carrier () forms one of a sun gear (; ; ) claim 12 , a ring gear (; ; ) and a planetary carrier (; ; ) of the respective first claim 12 , the second and the third planetary stage (; ; ).1432024324. The transmission unit according to claim 12 , wherein the second planetary stage () is coupled by the common gearwheel carrier () with the first and the third planetary stages (; ) such that partial torque claim 12 , that can be introduced into the second planetary stage () claim 12 , can be divided between the first and the third planetary stages (; ).15205382104. The ...

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Номер записи: 91
27-08-2015 дата публикации

METHOD TO MOUNT A ROLLING BEARING ON A WIND TURBINE SHAFT AND A WIND TURBINE BEARING ASSEMBLY

Номер: US20150240874A1
Автор: LEANDER Håkan, Wendeberg Hans
Принадлежит:

The invention is a method of mounting a rolling bearing onto a wind turbine rotor shaft, wherein the bearing includes an outer ring, an inner ring and rolling elements disposed between the rings, and wherein the inner ring provides an inner circumferential surface, having a frustoconical profile. The rolling bearing is mounted on a corresponding conical seat on the rotor shaft by the frustoconical inner circumferential surface. The method includes: pressing a liquid in-between the inner circumferential surface of the inner ring and the conical seat to facilitate the driving up of the rolling bearing on the conical seat, driving up the rolling bearing on the conical seat by an axial force acting on the rolling bearing, wherein the liquid is pressed in-between the two surfaces at an axial end portion of the inner circumferential surface. Furthermore, the invention regards a bearing assembly. 1. A method of mounting a rolling bearing onto a wind turbine rotor shaft , the bearing provides an outer ring , an inner ring and rolling elements between the rings , the inner ring including an inner circumferential surface , the surface having a frusto-conical profile , and wherein pressing a liquid in-between the inner circumferential surface of the inner ring and the conical seat to thereby facilitate the driving up of the rolling bearing on the conical seat,', 'driving up the rolling bearing on the conical seat by an axial force acting on the rolling bearing,', 'wherein the liquid is pressed in-between the two surfaces at an axial end portion of the inner circumferential surface., 'the rolling bearing is mounted on a corresponding conical seat on the rotor shaft by the frusto-conical inner circumferential surface, the method comprising2. The method according to claim 1 , wherein the liquid is any of oil claim 1 , synthetic oil or other non-corrosive fluid.3. The method according to claim 1 , wherein a ring is mounted on the shaft and located adjacent to and in contact with ...

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Номер записи: 92
18-08-2016 дата публикации

Gearbox lubrication system

Номер: US20160238125A1
Автор: Edwin Hidding, Stefan Rieken
Принадлежит: General Electric Co

The present disclosure is directed to a lubrication system for a gearbox that is part of a drivetrain assembly, e.g. of a wind turbine. The lubrication system includes a ring assembly having a first ring and a detached, second ring. The first and second rings are configured to fit within a gap located between a planetary gear system and a gearbox housing of the gearbox, e.g. due to operational and/or system tolerances. When installed, the first and second rings of the ring assembly are arranged together so as to form at least one opening therebetween, thereby being configured to direct a lubricant from the gearbox housing to the planetary gear system.

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Номер записи: 93
20-11-2014 дата публикации

WIND TURBINE ROTOR

Номер: US20140341740A1
Автор: Canedo Pardo Santiago, Pasquet Pierre
Принадлежит: ALSTOM RENOVABLES ESPAÑA, S.L.

Wind turbine rotor comprising a hub, a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis. The pitch system comprises a bearing, a gear and a pitch drive. The pitch drive is arranged on a flange and has a motor and a pinion which meshes with the gear. The flange is provided with a hole and an intermediate support is concentrically arranged with respect to the hole. The intermediate support comprises an off-center opening with respect to a central axis of the hole and the pitch drive is mounted through said off-center opening. The position of the off-center opening is such that the intermediate support can be arranged in a first and a second position in which the drive pinion meshes with a first and second section of the gear respectively. 1. A wind turbine rotor comprising a hub , a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis ,wherein the pitch system comprises a bearing, a gear and a pitch drive, the pitch drive being arranged on a flange and having a motor and a pinion which meshes with the gear, wherein one of the hub and blade comprises the flange and the other of the hub and blade comprises the gear, andwherein the flange is provided with a hole and an intermediate support is concentrically arranged with respect to the hole, wherein the intermediate support comprises an off-center opening with respect to a central axis of the hole and the pitch drive is mounted through the off-center opening, and wherein the position of the off-center opening is such that the intermediate support can be arranged in a first position in which the drive pinion meshes with a first section of the gear and in a second position in which the drive pinion meshes with a second section of the gear.2. The wind turbine rotor of claim 1 , wherein the intermediate support is fixed to the flange by screws or bolts being arranged around a perimeter of the ...

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Номер записи: 94
20-11-2014 дата публикации

BEARING ARRANGEMENT FOR A WIND TURBINE

Номер: US20140341741A1
Автор: Nieuwenhuizen John
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A bearing arrangement to avoid a static charge in a bearing is provided. 1. A bearing arrangement for a wind turbine , comprisinga first bearing shell, that is prepared to be coupled to a first part of the wind turbine,a second bearing shell, that is prepared to be coupled to a second part of the wind turbine,whereby the first and the second bearing shell are arranged in a way that the first and the second bearing shell are rotatable with respect to each other, so that the first part of the wind turbine rotated with respect to the second part of the wind turbine,a first isolation ring, that is arranged between the first bearing shell and the first part of the wind turbine, so that the first bearing shell and the first part of the wind turbine are electrically isolated from each other in a certain predetermined voltage range, andwherein an impedance electrical connection is arranged between, and is connected to, the first bearing shell and the first part of the wind turbine to prohibit formation of an electrical potential between the first bearing shell and the first part of the wind turbine.2. The bearing arrangement according to claim 1 , wherein a second isolation ring is arranged between the second bearing shell and the second part of the wind turbine claim 1 , so that the second bearing shell and the second part of the wind turbine are electrically isolated from each other within a certain predetermined voltage range.3. The bearing arrangement according to claim 2 , wherein an impedance electrical connection is arranged between claim 2 , and is connected to claim 2 , the second bearing shell and the second part of the wind turbine to prohibit formation of an electrical potential between the second bearing shell and the second part of the wind turbine.4. The bearing arrangement according to claim 1 , wherein at least one impedance is protected against moisture claim 1 , humidity and dirt.5. The bearing arrangement according to claim 1 , wherein the impedance is ...

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Номер записи: 95
08-09-2016 дата публикации

WIND TURBINE HUB

Номер: US20160258415A9
Автор: ESTEBAN Laia, LÁZARO Ricardo
Принадлежит:

In a first aspect, the invention provides a hub to be mounted on a wind turbine having a frame to be surrounded by the hub. The hub comprises a front bearing seat and a rear bearing seat for rotatably mounting the hub on the frame through respective front and rear bearings, in such a way that the frame is provided at least partially internally of the hub. The hub further comprises a plurality of beams connecting the front bearing seat and the rear bearing seat. In a second aspect, the invention provides a wind turbine comprising a hub according to the first aspect of the invention and a frame surrounded by the hub. The hub is rotatably mounted on the frame through respective front and rear bearings, in such a way that the frame is provided at least partially internally of the hub. 1. A hub to be mounted on a wind turbine having a frame to be surrounded by the hub; the hub comprising:a front bearing seat and a rear bearing seat for rotatably mounting the hub on the frame through respective front and rear bearings, in such a way that the frame is provided at least partially internally of the hub; anda plurality of beams connecting the front bearing seat and the rear bearing seat.2. The hub according to claim 1 , wherein:the plurality of beams connecting the front and rear bearing seats comprises at least three beams.3. The hub according to claim 1 , wherein:each of the beams connects the front and rear bearing seats at respective connection points of the front and rear bearing seats.4. The hub according to claim 3 , wherein:the beams are sized and the corresponding connection points are spaced in such a way that an average-size adult human can move between the beams.5. The hub according to claim 3 , wherein:each of the front and rear bearing seats has its connection points substantially equispaced.6. The hub according claim 3 , wherein:the front and rear bearing seats have an identical number of connection points.7. The hub according to claim 6 , wherein:the number of ...

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Номер записи: 96
24-09-2015 дата публикации

WIND TURBINE ROTOR SHAFT ARRANGEMENT

Номер: US20150267687A1
Автор: LEANDER Håkan, Reichert Jürgen, Wendeberg Hans
Принадлежит: AKTIEBOLAGET SKF

A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft. 1. A wind turbine rotor shaft arrangement , comprising:a rotor shaft adapted to support wind turbine blades,a non-rotating first housing structure for supporting the rotor shaft, which first housing structure is arranged to be mounted to a wind turbine nacelle framing, anda first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point,wherein the first rolling bearing is a single row, self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner ring of the first rolling bearing and outer ring of the first rolling bearing,wherein each roller of the first rolling bearing is a symmetrical bearing roller and has a curved raceway-contacting surface arranged in contact with both of a curved inner raceway of the inner ring of the first rolling bearing and in a curved outer raceway of the outer ring of the first rolling bearing, andwherein a contact angle between each ...

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Номер записи: 97
04-12-2014 дата публикации

METHOD FOR CONTROLLING A WIND TURBINE AND WIND TURBINE

Номер: US20140355913A1
Автор: Pedersen Bo, Thomsen Kim
Принадлежит:

A wind turbine and method for controlling a wind turbine with a plain/sliding bearing and bearing lubrication means is disclosed. The method comprising the steps of 1. A method for controlling a wind turbine with a plain/sliding bearing and bearing lubrication means , comprising the steps of:operating the bearing as a hydrodynamic bearing in normal operation; andoperating the bearing as a hydrostatic bearing when the friction of the bearing reaches a threshold.2. The method according to claim 1 , wherein for the hydrostatic operation the lubrication of the bearing is pressurised and/or the temperature of the bearing is controlled.3. The method according to claim 1 , wherein the friction is determined by measuring pressure claim 1 , temperature and/or film thickness of the bearing or by parameters of a wind turbine controller.4. The method according to claim 1 , wherein stiffness and/or damping of the turbine and/or driveline components are adjusted.5. A wind turbine with a plain/sliding bearing and a bearing lubricant claim 1 , comprising a pressure unit for controlling the pressure of the lubricant and a controller connected to the pressure unit adapted for control of operation of the bearing as a hydrodynamic bearing and/or as a hydrostatic bearing.6. The wind turbine according to claim 5 , wherein the controller comprises inputs for actual turbine load and production claim 5 , bearing and lubricant conditions and/or operating and maintenance status and wherein the controller is adapted to generate an output for the pressure unit based upon the inputs.7. The wind turbine according to claim 5 , comprising an energy storage with a pressure reservoir for the lubricant.8. The wind turbine according to claim 5 , comprising a temperature unit for controlling the temperature of the bearing claim 5 , wherein the temperature unit is connected to the controller.9. The wind turbine according to claim 5 , comprising a sensor for measuring pressure claim 5 , temperature and/or ...

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Номер записи: 98
04-12-2014 дата публикации

HUB OF A WIND TURBINE

Номер: US20140356169A1
Автор: Frank Hubertus
Принадлежит:

A wind turbine hub having both blades mounted thereon by means of blade bearings adjustable about the longitudinal axes thereof. The turbine includes means for effecting multi-axes adjustments of a plurality of elements relative to one another. The elements are rotatable about bearings having selectively oriented axes of rotation, each bearing comprising two parts rotatable relative to each other. 1. A hub of a wind turbine having rotor blades adjustable about their longitudinal axes and mounted to the hub by means of blade bearings , whereina) outer rings of at least two of the blade bearings are provided with differently oriented axes of rotation and are embodied in one piece with the hub body, such that at least one raceway per blade bearing is formed on a common hub body, wherein the extent of an entire blade bearing parallel to the blade bearing rotation axis, measured across all the raceways of said blade bearing, is shorter than a radius of the blade bearing,b) and provided as a corresponding rotating component to each of said outer rings integrated with the hub body is a respective inner ring separate from a rotor blade and is adapted to be screwed together with a rear end face of the rotor blade via coronally arranged fastening bores extending parallel to a longitudinal axis of the rotor blade.2. A device for the multi-axial adjustment of a plurality of elements relative to one another , particularly in or on a hub of a wind turbine , wherein the elements , comprising rotor blades of a wind turbine , each have differently oriented axes of rotation and are rotatable via respective bearings having correspondingly oriented axes of rotation , and wherein each bearing has two parts that can be rotated relative to each other about its axis of rotation , whereina) one rotatable part of each of at least two bearings is formed by providing a common, multiple-connected base body, particularly or shaping the hub body of a wind turbine, as a result of which the ...

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Номер записи: 99
01-10-2015 дата публикации

SPACER FOR ROLLING BEARING, NOTABLY USED IN A WIND TURBINE

Номер: US20150275968A1
Автор: Magny Jean-Baptiste, Ovize Pascal
Принадлежит:

The spacer for rolling bearing comprises an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings. The spacer comprises two opposite faces having a concave profile adapted to the rollers, at least one of said faces comprising two contact surfaces with the associated roller and a concave recess extending between said contact surfaces and directed outwards towards said roller. 1. A spacer for a rolling bearing comprising:an inner ring,an outer ring,at least one row of angular contact rollers disposed between raceways provided on the rings, and two opposite faces having a concave profile adapted to the rollers, at least one of the faces having two contact surfaces with the associated roller and a concave recess extending between the contact surfaces and directed outwards towards the roller.2. The spacer according to claim 1 , further comprising opposite inner and outer parts adapted to come into contact with the raceways of the rings and opposite lateral flanges delimiting the opposite faces.3. The spacer according to claim 2 , wherein the recess extends between the inner and outer parts.4. The spacer according to claim 3 , wherein the recess extends from the inner part to the outer part.5. The spacer according to claim 4 , wherein the inner and outer parts each comprise two contact surfaces and a concave recess disposed therebetween.6. The spacer according to claim 5 , wherein the recess of the face extends from the recess of the inner part to the recess of the outer part.7. The spacer according to or claim 5 , wherein the recesses of the inner and outer parts extend from one face to the other.8. The spacer according to claim 7 , wherein the lateral flanges each comprise include one contact surface and a recess in a form of a groove formed onto the surface.9. The spacer according to claim 8 , wherein the lateral flanges each further comprise additional recesses located on the both sides of the contact ...

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Номер записи: 100