СХЕМА РАСПОЛОЖЕНИЯ КАТУШЕК ГИДРОЭЛЕКТРИЧЕСКОЙ ТУРБИНЫ

Изобретение относится к гидроэлектрической турбине для генерации электричества путем извлечения мощности из приливного потока воды через турбину. Технический результат - устранение электрического дисбаланса катушек вследствие эксцентричного вращения ротора. Гидроэлектрическая турбина содержит статор и безвальный ротор, расположенный с возможностью вращения внутри статора. При этом статор образует отверстие, внутри которого удерживается ротор. Указанное отверстие имеет форму и размеры относительно ротора, обеспечивающие наличие у ротора плавающей оси вращения. Ротор содержит совокупность магнитов, а на статоре расположена соответствующая совокупность катушек. При этом катушки расположены в группах, внутри которых катушки расположены по окружности на равном расстоянии друг от друга и электрически соединены вместе последовательно. 5 з.п. ф-лы, 5 ил.

A wind turbine with a vertical shaft

Improved wind turbine shaft and drive assembly

Wind turbine comprising a bed 11, rotor, gearbox 15, generator 20, shaft 12 and a hub 14 with a plurality of blade mounts, wherein the shaft is mounted on the bed by at least two spaced apart bearings 13, the gearbox and generator are mounted on the bed. The shaft inputs to the gearbox, wherein the output is connected via a coupling to the generator input shaft. The shaft includes a hub mounting portion with a hub seat and adjacent flange. The hub is in an interference fit with the shaft/hub seat. The hub and flange have corresponding pluralities of holes and studs with nuts, or aligned holes wherein at least the hub holes are threaded and threaded bolts pass through the flange holes and engage with the threads of the hub. The blade mounts may be welded or fastened, the bearing may be lip sealed, the shaft may be electroless nickel. Also disclosed is a turbine further comprising a high or low speed shaft brake assembly which may be hydraulic or pneumatic. Various flexible couplings are ...

DEVICE FOR GENERATING ENERGY ON THE BASIS OF WAVE MOTION

DEVICE FOR GENERATING ENERGY ON THE BASIS OF WAVE MOTION

DEVICE FOR GENERATING ENERGY ON THE BASIS OF WAVE MOTION

DRIFT CONFIGURATION FOR WIND ENERGY PLANTS

HYDRAULIC POWER RECOVERY TURBINE WITH INTEGRATED BEARING-CLUTCH HOUSING

The hydraulic power recovery turbine comprises a casing and a rotor arranged for rotation in the casing. The rotor comprises a rotor shaft (43) and at least one impeller mounted on the rotor shaft. The rotor shaft is supported by bearings (45) arranged in respective bearing housings (25). The drive-end bearing housing (25) further houses a clutch (51), which connects the rotor shaft (43) to an output shaft (29) of the hydraulic power recovery turbine (23) extending from the drive-end bearing housing.

ROTARY AIDED CONJUNCTIVE ENERGY SYSTEM

The present application includes a system for generating energy via a rotating drum. The system includes a housing, a drum, and a plurality of enclosed chambers. The housing surrounds the drum and helps to distinguish between a gravitational domain and a buoyancy domain. The drum is coupled to a shaft and configured to rotate within the housing about a central axis. The plurality of enclosed chambers are radially aligned around an internal surface of the drum. The drum is exposed to a gravitational domain and a buoyancy domain simultaneously so as to induce rotation of the drum around the shaft. The enclosed chambers are subjected to gravitational forces in the gravitational domain and the enclosed chambers are subjected to buoyancy forces in the buoyancy domain.

WIND TURBINE GENERATOR AND ASSEMBLING METHOD THEREOF

A wind turbine generator includes: a main shaft for supporting a wind turbine rotor; a main bearing for rotatably supporting the main shaft; a generator having a generator rotor and a stator; a sleeve connected to the generator rotor and inserted onto the main shaft; and a hydraulic shrink fit provided outside the sleeve and tightening the sleeve to connect to the main shaft. The hydraulic shrink fit is constructed to reduce the inner diameter through a supply of hydraulic fluid to secure the sleeve to the main shaft.

Wind energy plant

Specified is a wind energy plant which has a machine carrier (20) and, on opposite sides of the machine carrier (20), a rotor and a generator (10), wherein the rotor and the generator (10) are coupled to one another, without a gearbox, via a rotor shaft (60) and a generator shaft (70) and an interposed coupling (50), and wherein the generator (10) is of external-rotor configuration.

Method for fixing skirt on turbine shaft of hydraulic machinery, involves moving metal part into zone at another zone of another metal part to fix former metal part on former zone of latter metal part

Le procédé comprend les étapes suivantes : - prévoir une première pièce métallique (2) comprenant une première zone (6) présentant un premier diamètre (d) et une deuxième zone (22) présentant un deuxième diamètre (d'), inférieur au premier diamètre (d), - prévoir une deuxième pièce métallique (1) présentant une ouverture interne (10) complémentaire de la première pièce (2) et d'un diamètre égal au premier diamètre (d). La deuxième pièce métallique (1) est réalisée en deux parties dont l'assemblage forme l'ouverture interne (10), le procédé comprenant les étapes suivantes : - assembler les deux parties de la deuxième pièce (1) autour de la deuxième zone (22), - fixer les deux parties de la deuxième pièce (1) l'une à l'autre par soudage, - déplacer la deuxième pièce (1) de la deuxième zone (22) à la première zone (6).

BEARING FOR A WIND TURBINE

A rotary mechanism for incrementally advancing a rotary element (13) with respect to a ground member (12) comprises a unidirectional clutch (41) and a rotary actuator (21, 33, 39). Actuation of the actuator is against a resilient bias (34), and overcomes friction between the rotary element and the ground member to advance the rotary element with the unidirectional clutch locked. Release of the actuator allows re- setting thereof by the resilient basis, the friction between the rotary element and the ground member resisting further relative movement.

SYSTEM AND METHOD FOR CONTROLLING WIND TURBINES

A control system for a wind turbine is provided. The wind turbine includes at least one stationary component. The control system includes at least one mechanical load measurement sensor coupled to the at least one stationary component. The system also includes at least one modeling device configured to generate and transmit at least one wind turbine regulation device command signal to at least one wind turbine regulation device to regulate operation of the wind turbine based upon at least one wind inflow parameter. 1. A control system for a wind turbine , the wind turbine including at least one stationary component , said control system comprising:at least one mechanical load measurement sensor coupled to the at least one stationary component;at least one wind turbine regulation device configured to regulate operation of the wind turbine as a function of at least one wind inflow parameter; and receive at least one mechanical load measurement signal from said at least one mechanical load measurement sensor coupled to the at least one stationary component;', 'generate the at least one wind inflow parameter based on the at least one mechanical load measurement signal;', 'generate at least one wind turbine regulation device command signal based on the at least one wind inflow parameter; and', 'transmit the at least one wind turbine regulation device command signal to said at least one wind turbine regulation device to regulate operation of the wind turbine., 'at least one modeling device coupled to said at least one mechanical load measurement sensor and said at least one wind turbine regulation device, said at least one modeling device configured to2. The control system in accordance with claim 1 , wherein the wind turbine includes a rotor claim 1 , a rotor hub coupled to the rotor claim 1 , a plurality of wind turbine blades coupled to the rotor hub claim 1 , a shaft flange coupled to the rotor claim 1 , a tower claim 1 , a main bearing housing claim 1 , and a yaw ...

Turbine assembly

Rotary aided conjunctive energy system

The present application includes a system for generating energy via a rotating drum. The system includes a housing, a drum, and a plurality of enclosed chambers. The housing surrounds the drum and helps to distinguish between a gravitational domain and a buoyancy domain. The drum is coupled to a shaft and configured to rotate within the housing about a central axis. The plurality of enclosed chambers are radially aligned around an internal surface of the drum. The drum is exposed to a gravitational domain and a buoyancy domain simultaneously so as to induce rotation of the drum around the shaft. The enclosed chambers are subjected to gravitational forces in the gravitational domain and the enclosed chambers are subjected to buoyancy forces in the buoyancy domain.

A HYDROELECTRIC TURBINE COIL ARRANGEMENT

The present invention provides a hydroelectric turbine for generating electricity by extracting power from the tidal flow of water through the turbine, the turbine comprising a shaftless rotor which results in the eccentric rotation of the rotor relative to the stator, which can result in uneven generation of power through differences in the spacing between rim mounted magnets and coils forming a generator of the turbine, the turbine thus employing groupings of equally spaced and serially connected coils.

A WIND TURBINE SYSTEM, AN ASSEMBLING METHOD OF A WIND TURBINE SYSTEM, AN INSPECTING METHOD OF A WIND TURBINE SYSTEM, AND AN OPERATION METHOD OF A WIND TURBINE SYSTEM

A wind turbine system includes blades which rotate by receiving wind, a nacelle which supports the blades and rotates with the blades, a main shaft for transmitting torque which is connected to the hub and is rotated by the rotation of the hub, and a generator which generates electricity using rotating energy of the main shaft, wherein the main shaft is connected to the hub inside the hub in the axial direction of the main shaft.

INTEGRATED SYSTEM AND METHOD FOR SERVICING A COMPONENT OF A WIND TURBINE

An integrated repair system for servicing a component within the nacelle of the wind turbine uptower. The repair system includes at least one mounting location integrally formed into a bedplate support frame of the wind turbine and a frame assembly coupled to the bedplate support frame. The frame assembly supports at least one clamp element and at least one jack element. When the gearbox is moved in the nacelle during repair procedures, the repair system supports the main shaft uptower such that the rotor remains installed onto the rotor shaft. 1. An integrated repair system for servicing a component within a nacelle of a wind turbine uptower , the wind turbine having a rotor with at least one rotor blade mounted to a rotatable hub , the rotor operably coupled to a gearbox via a rotor shaft , the repair system comprising:at least one mounting location integrally formed into a bedplate support frame of the wind turbine;a frame assembly comprising at least one support leg secured to the mounting location and defining a passageway that receives the rotor shaft therethrough;a pin carrier tray having a support surface extending between a first tray end and a second tray end, the first tray end being removably coupled to the at least one support leg;a screw feed assembly operably coupled to the second tray end and oriented to move at least one fastener in an axial direction so as to couple or decouple the frame assembly and the bedplate support frame;at least one clamp element positioned inward of the frame assembly so as to receive the rotor shaft therein and provide a clamping force thereto; andat least one jack element engaged with the frame assembly and the at least one clamp element, the at least one jack element being operable with the frame assembly to provide support to and movement of the rotor shaft in at least one direction,wherein, when the gearbox is moved in the nacelle during a repair procedure, the repair system supports the rotor shaft uptower such that ...

HYDRAULIC POWER RECOVERY TURBINE WITH INTEGRATED BEARING-CLUTCH HOUSING

The hydraulic power recovery turbine comprises a casing and a rotor arranged for rotation in the casing. The rotor comprises a rotor shaft and at least one impeller mounted on the rotor shaft. The rotor shaft is supported by bearings arranged in respective bearing housings. The drive-end bearing housing further houses a clutch, which connects the rotor shaft to an output shaft of the hydraulic power recovery turbine extending from the drive-end bearing housing. 1. A hydraulic power recovery turbine , the hydraulic power recovery turbine comprising:a casing;a rotor arranged for rotation in the casing, the rotor comprising a rotor shaft and at least one impeller mounted on the rotor shaft;at least one drive-end bearing housing comprising a mounting flange to connect the drive end bearing housing to the casing; andat least one drive-end bearing arranged in the drive-end bearing housing and rotatingly supporting the rotor shaft;wherein a clutch is arranged in the drive-end bearing housing; the clutch connecting the rotor shaft to an output shaft of the hydraulic power recovery turbine extending from the drive-end bearing housing.2. The hydraulic power recovery turbine of claim 1 , wherein the clutch is an overrunning clutch.3. The hydraulic power recovery turbine of claim 1 , further comprising a single lubrication system for lubricating the clutch and the drive-end bearing.4. The hydraulic power recovery turbine of claim 1 , wherein the clutch comprises an inner race and an outer race.5. The hydraulic power recovery turbine of claim 4 , wherein one of the inner race and outer race is torsionally constrained to the rotor shaft and the other of the inner race and outer race is connected to the output shaft.6. The hydraulic power recovery turbine of claim 4 , wherein the inner race of the clutch is torsionally coupled to the output shaft and the outer race of the clutch is torsionally coupled to the rotor shaft claim 4 , or vice versa.7. The hydraulic power recovery ...

УСТРОЙСТВО ДЛЯ ПРОИЗВОДСТВА ЭЛЕКТРОЭНЕРГИИ И СИСТЕМА, ВКЛЮЧАЮЩАЯ ТАКОЕ УСТРОЙСТВО

Группа изобретений относится к устройству и системе для производства электроэнергии с использованием потока воды. Устройство 14 содержит сужающуюся часть 16, соединенную с первым концом смесительной трубы 18 с образованием трубы Вентури 20 между концом части 16 и смесительной трубой 18; диффузор 22, соединенный со вторым концом трубы 18 и выполненный таким образом, что в процессе эксплуатации давление на его выходе превышает давление в трубе Вентури 20; трубу 24 турбины, содержащую пакет лопаток 30. Труба 24 турбины установлена в части 16 таким образом, что между трубой 24 турбины и частью 16 образован кольцеобразный зазор, образующий первый водоток 32. В самой трубе 24 турбины образован второй водоток 34. Труба 24 турбины установлена в части 16 с возможностью вращения. Лопатки 30 прикреплены к ее внутренней поверхности таким образом, что в процессе эксплуатации поток воды, обтекающий лопатки 30, обеспечивает вращение трубы 24 турбины. Группа изобретений направлена на обеспечение производства ...

ГЕНЕРАТОР ЭНЕРГИИ ПОСРЕДСТВОМ ПРИЛИВА

Изобретение относится к двунаправленному устройству генерации энергии посредством прилива. Устройство содержит множество канальных дамб 10, расположенных на расстоянии друг от друга для образования канала 14 постоянной ширины, содержащих множество установочных канавок 10а, каждая из которых выполнена посредством выемок на поверхности, обращенной к каналу 14, первый и второй водозаборники 11 и 12, а также модуль 20 водяного колеса, вставленный в канавку 10а и выполненный с возможностью вырабатывать электроэнергию с использованием движения приливно-отливного течения. Приливно-отливное течение может двигаться вперед/назад по каналу 14. Водозаборник 11 проходит от переднего конца дамб 10 по направлению движения приливно-отливного течения и имеет форму пиков, при которой ширина водозаборника 11 постепенно уменьшается в направлении к передней части канала 14. Водозаборник 12 проходит от заднего конца дамб 10 относительно направления движения приливно-отливного течения и имеет форму пиков, при ...

УЗЕЛ ГИДРОТУРБИНЫ

DREHLAGERUNG EINES ROTATIONSKÖRPERS

Reinforcements to windshafts

A reinforcing tube 1 is inserted into the hollow core of a windshaft 2 and anchored 7,8 and 9 at each end. The tube is preferably tensioned to provide a degree of precompression in the windshaft. Alternative forms of anchors may be used. The ends of the tube may be fitted with closing and bearing devices 10, 11 and 12 to support the striking rod 5 which passes through the windshaft and provide weathertight seals and means of lubricating the striking rod. The device may be applied to existing hollow windshafts of whatever construction, or to new constructions. An extension tube (15, fig 4) may be used to locate the stocks for the windmill sails when a poll end canister is used. The tube may be replaced by a solid bar if a striking rod is not required.

WINDTURBINE, PROCEDURE FOR THE COUPLING OF A FIRST DRIVE STRAND COMPONENT OF THE DRIVE STRAND OF A WINDTURBINE WITH A SECOND DRIVE STRAND COMPONENT OF THE DRIVE STRAND AND USE OF A WINDTURBINE

Power take off system for wave energy converter buoy

A power-take-off system for use in a wave energy converter buoy employs a meshing nut and screw shaft assembly for motion conversion. That is, the motion of the buoy float is coupled to drive the nut along the screw shaft on which it is mounted. The linear movement of the nut along the shaft causes the shaft to rotate and this rotational motion is then coupled to rotate an electrical generator.

ROTARY MACHINE WITH IMPROVED SHAFT

A rotary machine (3) is disclosed, which comprises comprising: a rotary shaft (7) having a rotation axis (A-A), a first shaft end (7A), and a second shaft end (7B); a first bearing arrangement (10) at the first shaft end (7A); a second bearing arrangement (11) at the second shaft end (7B); a coupling flange (31) mechanically connected to the first shaft end (7A). The coupling flange (31) is mechanically connected to the first shaft end (7A) by means of a first axial-contact coupling (35), such as a Hirth joint, for instance.

PIVOT BEARING ARRANGEMENT OF A ROTATIONAL BODY

The invention relates to a pivot bearing arrangement of a rotational body, said arrangement comprising: a) the rotational body (1; 21); b) a supporting body (2; 22) that supports the rotational body (l; 21) on a rotational axis (R); c) and carrier rolls (3, 6; 23; 24; 33) that position the rotational body (l; 21) in relation to the supporting body (2; 22) in such a way that it can rotate about the rotational axis (R) by rolling contact; d) the carrier rolls (3, 6; 23; 24; 33) being positioned in such a way that they can rotate about carrier roll rotational axes (T1), formed by the rotational body (1; 21) or the supporting body (2; 22), in an individually supported manner.

Hydrokinetic Turbine With Configurable Blades For Bi-Directional Rotation

A vertical axis hydrokinetic turbine apparatus comprises a drive shaft assembly, at least two blade assemblies, and at least two pairs of support arm connection interfaces. The drive shaft assembly comprises a rotatable drive shaft, an upper and lower center plates fixedly mounted to upper and lower ends of the drive shaft. Each blade assembly comprises a main blade having a longitudinally elongated body with a foil profile configured to produce lift in the presence of flowing water; and first and second support arms each having a longitudinally elongated body extending away from the main blade and terminating at a drive shaft connecting end. Each pair of support arm connection interfaces serve to releasably connect one of the blade assemblies to the drive shaft assembly and comprises upper and lower center plate components on the upper and lower center plates respectively, and support arm components on each of the first and second support arms. Each of upper and lower center plate components are configured to releasably connect to either of the support arm components, thereby enabling the blade assembly to be mounted to the drive shaft assembly in a clockwise rotation configuration wherein a leading edge of the main blade faces a clockwise rotation direction of the drive shaft, and in a counter-clockwise rotation configuration wherein the blade assembly is inverted 180° to the clockwise rotation configuration and wherein the leading edge of the main blade faces a counter-clockwise rotation direction of the drive shaft. 1. A vertical axis hydrokinetic turbine apparatus , comprising:a drive shaft assembly comprising a rotatable drive shaft, an upper center plate fixedly mounted to an upper end of the drive shaft, and a lower center plate fixedly mounted to a lower end of the drive shaft; a main blade having a longitudinally elongated body with a foil profile configured to produce lift in the presence of flowing water; and', 'first and second support arms each having ...

SHAFT CONNECTION USING A BAND

The present invention relates to a connection of two shafts, for example a driving shaft and a driven shaft in a wind turbine. In particular, the invention relates to a connection making use of a band to lock the two shafts together. The two shafts are inter-connectable by connecting an interconnection part of the first shaft and an interconnection part of the second shaft. The band is positioned and wound around an outer surface enclosing the interconnection parts of the shafts. The shafts are locked together by providing pressure to the interconnection parts from the windings of the band.

Verfahren zur Herstellung eines Gehäuses eines Schraubenkompressors

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von wenigstens einem ersten Schraubenlagersitz (100) und wenigstens einem ersten Innenwandbereich (104) in einem Rotorengehäuse (20a), wobei das Rotorengehäuse (20a) Bestandteil eines Gehäuses (20) eines Schraubenkompressors (10) ist, umfassend die folgenden Schritte: – Ausrichtung des Rotorengehäuses (20a) des Schraubenkompressors (10); und – Fertigung des ersten Schraubenlagersitzes (100) und des ersten Innenwandbereichs (104) des Rotorengehäuses (20a) in wenigstens einem gemeinsamen Fertigungsvorgang.

Instrumented shaft for condition monitoring

A flanged shaft 110, eg a planet carrier shaft in a planetary gearbox of a wind turbine, comprises a shaft 111 for mounting the inner ring of a bearing which is retained by the axially inner surface 114 of a flange 112. The shaft 110 is instrumented with one or more sensor units 130 each having a measuring surface 132 formed by an axially inner surface of at least one contact plate on which one or more sensors are provided, for monitoring bearing operating parameters such as vibration, temperature, acoustic emission or strain. Each sensor unit 130 is arranged in a recess which extends through the flange part 112 such that the measuring surface 132 lies flush with or protrudes somewhat beyond the axially inner surface 114 of the flange part 112. The shaft 110 may have four sensor units 130 arranged evenly around its circumference. The sensor(s) may be powered by one or more batteries housed in a battery box 152 in the other end of the shaft 110.

Hydrokinetic turbine with configurable blades for bi-directional rotation

A vertical axis hydrokinetic turbine apparatus comprises a drive shaft assembly, at least two blade assemblies, and at least two pairs of support arm connection interfaces. The drive shaft assembly comprises a rotatable drive shaft, an upper and lower center plates fixedly mounted to upper and lower ends of the drive shaft. Each blade assembly comprises a main blade having a longitudinally elongated body with a foil profile configured to produce lift in the presence of flowing water; and first and second support arms each having a longitudinally elongated body extending away from the main blade and terminating at a drive shaft connecting end. Each pair of support arm connection interfaces serve to releasably connect one of the blade assemblies to the drive shaft assembly and comprises upper and lower center plate components on the upper and lower center plates respectively, and support arm components on each of the first and second support arms. Each of upper and lower center plate components ...

Vacuum pump

Vacuum pump comprising a housing 14, a rotor shaft 12 disposed in the housing, at least one bearing 16 rotatably supporting the rotor shaft against the housing including an inner race 18 in contact with the rotor shaft and an outer race 20 in contact with the housing, and an axial spring 26 applying an axial force onto the outer race, wherein a bearing ring 24 is disposed between the axial spring and the outer race, the bearing ring applying a clamping force to the housing. Preferably the bearing ring comprises textured surface. The bearing ring may comprise a non-constant cross-section along its perimeter to provide an even clamping force along the bearing ring. The bearing ring may comprise a slanted surface being oriented towards the bearing and in direct contact with the outer race creating a radial force component of the axial force of the axial spring applied to the outer race. The contact surface of the outer race being in contact with the bearing ring may be rounded.

TURNING STORAGE OF A BODY OF REVOLUTION

CONTRACTION DISK UNIT AND TOOL FOR THEIR ASSEMBLY

Wind turbine

A METHOD FOR SECURING TWO METAL PARTS TOGETHER

과급기의 제조방법 및 과급기

... 모터 오버행 구조의 과급기에 있어서, 모터 로터 및 스테이터의 조립 작업을 용이하게 하는 과급기의 제조방법을 제공한다. 컴프레서부에 접속된 로터축(15)의 단부에 모터가 장착된 과급기의 제조방법으로서, 모터가, 원통 형상의 하우징(33)과, 하우징(33)의 내부에 수납되어 있는 스테이터(32)와, 로터축(15)의 단부에 접속되어 스테이터(32)의 내부에서 회전하는 영구자석을 구비한 모터 로터(31)를 구비하고, 모터 로터(31)를 모터축(15)에 접속하여 장착하는 로터 장착공정과, 하우징(33)을 로터축(15)과 동심으로 고정 지지시키는 하우징 장착공정과, 하우징(33)을 가이드로 하여 하우징(33)의 내부에 스테이터(32)를 모터 로터(31)와 직접 접촉하지 않도록 삽입하여 조립하는 스테이터 장착공정을 포함하고 있다.

METHODS AND DEVICES FOR IMPROVING EFFICIENCY OF WIND TURBINES IN LOW SPEED SITES

A device for adjusting the pitch angle of a wind turbine blade comprising a spring, a camshaft, and cam grooves, wherein the pitch is adjusted for optimum starting and operating eficeincy at low speeds and adjustable for overspeed conditions.

HIGH TORQUE WIND TURBINE BLADE, TURBINE, AND ASSOCIATED SYSTEMS AND METHODS

A blade for a wind turbine can include an elongated and curved sheet having a curved root, a curved tip, a leading edge, and a trailing edge. The root and the tip can be rotated relative to each other such that the blade is twisted along its length. The root can include an edge having curved projections, the curved projections being distributed along a curvature of the root. A wind turbine can include a mounting element and a plurality of turbine blades. Each turbine blade can be attached to the mounting element closer to the trailing edge than to the leading edge such that an intersection of the leading edge and the root projects upstream from the wind turbine. A wind turbine generator assembly for converting wind into electrical energy can include a wind turbine and a generator. In addition, a support structure can support the wind turbine and generator. 1. A wind turbine generator assembly for converting wind into electrical energy , the assembly comprisinga wind turbine; anda generator configured to receive rotational force from the wind turbine and convert the rotational force to electrical energy; whereinthe wind turbine comprises a hub and a plurality of turbine blades attached to the hub; and wherein a root positioned adjacent to the hub,', 'a tip positioned opposite from the root, and', 'a leading edge spanning between the root and the tip along a length of the blade, the leading edge having a length greater than a length of the root and a length of the tip, the leading edge positioned to face an incoming wind stream;, 'at least one of the turbine blades comprises'}wherein the leading edge comprises a plurality of curved projections positioned to extend toward the incoming wind stream.2. The wind turbine generator assembly of wherein each curved projection of the plurality of curved projections has a relative amplitude with respect to a chord length of the at least one blade that is different from a relative amplitude of the other curved projections.3. The ...

POWER GENERATION DEVICE AND SHAFT COUPLING DEVICE USED THEREIN

A power generation device includes: a one-way clutch which is provided between an output shaft of a speed increaser and a drive shaft of a power generator, and which restricts relative rotation of the output shaft and the drive shaft in one direction and permits relative rotation thereof in another direction; and a plurality of elastic coupling members which are provided between the output shaft and the drive shaft, which are spaced in an axial direction, and which absorb misalignment between the output shaft and the drive shaft. The one-way clutch is disposed in a position axially outside an area between the plurality of elastic coupling members. 1. A power generation device comprising:a speed increaser which increases rotational power of a drive source in speed and which outputs it from an output shaft;a power generator which generates power by receiving an output of the output shaft by a drive shaft;a one-way clutch which is provided between the output shaft and the drive shaft, and which restricts relative rotation of the output shaft and the drive shaft in one direction and permits relative rotation thereof in another direction; anda plurality of elastic coupling members which are provided between the output shaft and the drive shaft, which are spaced in an axial direction, and which absorb misalignment between the output shaft and the drive shaft,wherein the one-way clutch is disposed in a position axially outside an area between the plurality of elastic coupling members.2. The power generation device according to claim 1 ,wherein the one-way clutch comprises a ring body which rotates integrally with the output shaft or the drive shaft, andwherein a spacer member which is lower in specific gravity than the ring body is provided between the plurality of elastic coupling members.3. The power generation device according to .wherein in a state in which the power generator is fixed to a surrounding environment and the speed increaser is not fixed to a surrounding ...

POWER GENERATING APPARATUS OF RENEWABLE ENERGY AND METHOD OF ATTACHING A HYDRAULIC PUMP THEREOF

A POWER GENERATING APPARATUS OF RENEWABLE ENERGY TYPE

ROTORBLATT EINER WINDENERGIEANLAGE UND VERFAHREN ZUM HERSTELLEN EINES SOLCHEN, ABSCHLUSSSTEG EINES ROTORBLATTS UND VERWENDUNG EINES SOLCHEN

Rotorblatt (6) einer Windenergieanlage (2), wobei das Rotorblatt (6) eine Vorderkante (14) und eine Hinterkante (16) aufweist und sich das Rotorblatt (6) zwischen einer Blattwurzel (8) und einer Blattspitze (12) erstreckt, wobei das Rotorblatt (6) eine Saugseitenschale (24) und eine Druckseitenschale (22) aufweist, wobei die Schalen (22, 24) an der Vorderkante (14) und wenigstens teilweise an der Hinterkante (16) verbunden sind, wobei das Rotorblatt (6) des Weiteren einen Abschlusssteg (30) aufweist, welcher zwischen der Saugseitenschale (24) und der Druckseitenschale (22) an der Hinterkante (16) in einem Wurzelbereich (26) des Rotorblatts (6) angeordnet ist, wobei der Abschlusssteg (30) eine dicke Hinterkante des Rotorblatts (6) bereitstellt und der Abschlusssteg (30) einen Klebeflansch (32) aufweist. Der Abschlusssteg (30) ist ein Faserverbundteil mit einem Kern (46) und Faserschichten (48), welche sich entlang der Oberfläche (50) des Kerns (46) erstrecken, wobei ein Teil der Faserschichten ...

Instrumented shaft for condition monitoring

POWER TAKE OFF SYSTEM FOR WAVE ENERGY CONVERTER BUOY

A power-take-off system for use in a wave energy converter buoy employs a meshing nut and screw shaft assembly for motion conversion. That is, the motion of the buoy float is coupled to drive the nut along the screw shaft on which it is mounted. The linear movement of the nut along the shaft causes the shaft to rotate and this rotational motion is then coupled to rotate an electrical generator.

DUAL INPUT PUMP AND SYSTEM

A dual input fluid pump system for coupling to a transmission or an engine and an electrical motor is disclosed. The system may include a first external gear, vane, internal gear, or gerotor-type pump, a second external gear pump, and connecting shaft. Gears of the second pump include one-way clutch bearings that enable operation of the system in multiple modes including engine-only; motor-only; a combined mode where the engine operates the first pump via the shaft and the motor operates the second pump with an external gear rotating in its pumping direction at a rate greater than the shaft; inlet boost; and a disconnection mode. Also noted is a pump that has a first shaft for coupling the engine to a first external gear and a second shaft for coupling the motor to a second external gear, as well as a one-way clutch bearing that performs in a similar manner.

HYDRAULIC POWER RECOVERY TURBINE WITH INTEGRATED BEARING-CLUTCH HOUSING

The hydraulic power recovery turbine comprises a casing and a rotor arranged for rotation in the casing. The rotor comprises a rotor shaft (43) and at least one impeller mounted on the rotor shaft. The rotor shaft is supported by bearings (45) arranged in respective bearing housings (25). The drive-end bearing housing (25) further houses a clutch (51), which connects the rotor shaft (43) to an output shaft (29) of the hydraulic power recovery turbine (23) extending from the drive-end bearing housing.

Shafting structure, lubrication method thereof and wind turbine generator set

Hydraulic power recovery turbine with integrated bearing-clutch housing

WIND TURBINE

RUNNER UNIT FOR A HYDRO TURBINE

HYDRAULIC POWER RECOVERY TURBINE WITH INTEGRATED BEARING-CLUTCH HOUSING

Instrumented shaft for condition monitoring

A flanged shaft having a shaft part including a bearing seat for mounting an inner ring of a bearing arrangement and a flange part at a first side of the shaft. The flange part has an axially inner surface for axially retaining the inner ring. The flanged shaft is instrumented with one or more sensor units. Each unit having a measuring surface formed by an axially inner surface of at least one contact plate on which one or more sensors are provided for monitoring one or more operating parameters of the bearing arrangement. According to the invention, each of the one or more sensor units is arranged in a corresponding recess that extends through the flange part such that the measuring surface lies flush with or protrudes somewhat beyond the axially inner surface of the flange part.

ELECTRIC MACHINE WITH INTEGRATED COOLING SYSTEM

An electric machine includes a housing having cylindrical outer walls including a stator portion and a cooling system portion adjacent to the stator portion. The electric machine includes a rotor drive shaft protruding coaxially with the cylindrical outer walls of the electric machine from the front of the electric machine, and a rotor coupled to the rotor drive shaft and arranged coaxially within the stator portion of the cylindrical outer walls of the machine housing. At least one air inlet is formed in the cylindrical outer walls of the machine housing between the stator portion and the cooling system portion. At least one air guide vane extends from the air inlet into a hollow volume of the rotor forming a cooling air duct from the air inlet past the inner surface of the rotor and back to the inner surface of the cooling system portion. 1. An electric machine with an integrated cooling system , the electric machine comprising:a machine housing having cylindrical outer walls, the outer walls including a stator portion at a front and a cooling system portion at a back, the cooling system portion lying adjacent to the stator portion;a rotor drive shaft protruding coaxially with the cylindrical outer walls of the electric machine from the front of the electric machine;a rotor coupled to the rotor drive shaft and positioned coaxially within the stator portion of the cylindrical outer walls of the machine housing;at least one air inlet formed in the cylindrical outer walls of the machine housing between the stator portion and the cooling system portion; andat least one air guide vane extending from the air inlet into a hollow volume of the rotor, the at least one air guide vane forming a cooling air duct from the air inlet past an inner surface of the rotor and back to an inner surface of the cooling system portion.2. The electric machine according to claim 1 , further comprising:a heat exchanger integrated into outer walls of the cooling system portion.3. The ...

Device and method for detecting defect in main shaft of wind turbine

The present disclosure provides a device and method for detecting a defect in a main shaft of a wind turbine. The device includes: an excitation source, configured to generate an electromagnetic ultrasonic guided wave signal; a nickel strap, magnetized and disposed on an outer surface of an end of the main shaft; a coil, disposed at the nickel strap, configured to receive the electromagnetic ultrasonic guided wave signal such that the electromagnetic ultrasonic guided wave signal propagates in the main shaft, the coil and the nickel strap being configured to transform the electromagnetic ultrasonic guided wave signal propagating in the main shaft into an electrical signal by electromagnetic induction; a signal collector, configured to collect the electrical signal and transform the electrical signal into guided wave detection data and a wireless communication component, configured to transmit the guided wave detection data to a remote equipment.

METHOD AND SYSTEM FOR DISENGAGING A SHRINK COUPLING ON A TURBINE GENERATOR

A system and associated method for disengaging a shrink coupling that secures a shaft to a drive train component, such as a gearbox, includes a reaction plate erected around the shaft at a location displaced from the shrink coupling, with the reaction plate being anchored in place relative to the shaft. A plurality of jacking devices, such as hydraulic jacks, are operationally disposed between the reaction plate and shrink coupling and spaced circumferentially around the shaft. The jacking devices have a first end engaged against the reaction plate and a second opposite end mechanically fastened to the shrink coupling. To remove the shrink coupling from the drive train component, the shrink coupling is released from its clamped state and the jacking devices are activated to exert a pulling force on the shrink coupling, which causes the shrink coupling to be pulled off of the drive train component and moved axially along the shaft to a resting position on the shaft.

BEARING FOR A WIND TURBINE

СХЕМА РАСПОЛОЖЕНИЯ КАТУШЕК ГИДРОЭЛЕКТРИЧЕСКОЙ ТУРБИНЫ

... 1. Гидроэлектрическая турбина, содержащая статор, безвальный ротор, расположенный с возможностью вращения внутри статора, причем статор образует отверстие, внутри которого удерживается ротор, причем отверстие имеет форму и размеры относительно ротора, обеспечивающие наличие у ротора плавающей оси вращения, совокупность магнитов на роторе и соответствующую совокупность катушек на статоре, отличающаяся тем, что катушки расположены в группах, внутри которых катушки расположены по окружности на равном расстоянии друг от друга и электрически соединены вместе последовательно.2. Гидроэлектрическая турбина по п.1, в которой катушки, электрически соединенные вместе последовательно, не расположены физически рядом друг с другом на статоре.3. Гидроэлектрическая турбина по п.1, в которой ротор содержит открытый центр.4. Гидроэлектрическая турбина по п.1, в которой отверстие имеет форму и размеры, позволяющие ротору совершать, по существу, эксцентричное или гипоциклоидное движение.5. Гидроэлектрическая ...

Hydrokinetic turbine with configurable blades for bi-directional rotation

Improved wind turbine shaft and drive assembly

PIVOT BEARING ARRANGEMENT OF A ROTATIONAL BODY

Turbine assembly

An apparatus for generating electricity from water flow held behind a barrier. The apparatus comprises: -a convergent section connected to a first end of a mixing tube such that a venturi is defined between the end of the convergent section and the mixing tube; -a diffuser section connected to a second end of the mixing tube, the diffuser section configured such in use such that the pressure at the exit of the diffuser section is greater than the pressure at the venturi; -a turbine tube comprising a blade assembly having a plurality of blades. The turbine tube is supported in the convergent section such that an annulus is defined between the turbine tube and the convergent section, to form a first flow passage, and the turbine tube defining a second flow passage. The turbine tube is rotatably mounted in the convergent section and the blades are attached to the inner surface of turbine tube such that in use water flow past the blades drives the rotation of the turbine tube.

POWER LEVER CHAIN MOTOR

Many previous efforts to construct a perpetual motion machine (weight motor), and have all met with failure. Indeed physicists and mechanical engineers have insisted that it is an impossible task. This machine utilizes wheels (mainly sprockets) and chains, and a leveraging system, to achieve the desired effect. In the most efficient model of the following motor, five shafts are utilized: a central god shaft, which carries two very large single outer sprockets each of which carries double strand chain with the second strand reaching inward to present an engagement site for smaller sprockets (or internal gears); two angel shafts-each diametrically opposed to the other- whose outer sprockets engage the free strand of god chain (or pinion gears); and two tug shafts which are farthest from the god shaft and adjacent to each angel shaft. The god shaft and the angel shafts are held to a constant 'equatorial' position parallel to one another, while the tug shafts are allowed to teeter slightly ...

TORQUE-THRUST CHAMBER FOR HORIZONTAL PUMP TEST SYSTEMS

A test skid for a pumping system is configured to evaluate the performance of a pump. The test skid includes a motor and a torque-thrust chamber connected between the motor and the pump. The torque-thrust chamber has a torque meter and a thrust bearing. The thrust bearing is positioned between the torque meter and the motor such that the torque meter is connected directly to the pump through a pump input shaft. In this configuration, the torque meter measures the torque applied directly to the pump without the need to account for losses through an intermediate thrust bearing.

TIDAL CURRENT ENERGY ELECTRIC GENERATING DEVICE

A tidal current energy electric generating apparatus comprising an outer frame (1), at least two inner frames (2), at least two mounting shafts (4), an actuator unit (6), at least four horizontal axis hydroelectric generators (3), and at least six bearings (5). The at least two inner frames (2) respectively are detachably arranged in the outer frame (1). The at least two mounting shafts (4) respectively are rotatably arranged in the two inner frames (2). The axial direction of the at least two mounting shafts (4) is perpendicular to the water surface. The actuator unit (6) is connected to the at least two mounting shafts (4) to drive the mounting shafts (4) into rotation. Every two of the horizontal axis hydroelectric generators (3) are fixed on one of the mounting shafts (4) and are placed in a same inner frame (2). The at least four horizontal axis hydroelectric generators (3) reorient with the rotation of the mounting shafts (4). Every three of the bearings (5) are sleeved on one mounting ...

A HUB CONNECTION IN A WIND TURBINE

A wind turbine system includes blades which rotate by receiving wind, a nacelle which supports the blades and rotates with the blades, a main shaft for transmitting torque which is connected to the hub and is rotated by the rotation of the hub, and a generator which generates electricity using rotating energy of the main shaft, wherein the main shaft is connected to the hub inside the hub in the axial direction of the main shaft.

Wind turbine with modular transmission system

Wind driven generator and method of assembling same

The present invention relates to a wind driven generator and a method of assembling the same. The wind driven generator is provided with a main shaft for supporting an impeller rotor, a main bearing for rotatably supporting the main shaft, a generator provided with a generator rotor and a stator, a sleeve joined to the generator rotor and mounted over the main shaft, and a hydraulic shrink fit element provided on the outer side of the sleeve and clamping and joining the sleeve to the main shaft. The hydraulic shrink fit element is configured such that supply of operation fluid reduces the inner diameter of the hydraulic shrink fit element to fasten the sleeve to the main shaft.

uniço entre o eixo de entrada da multiplicadora e o eixo de giro do rotor

WIND TURBINE WITH VERTICAL AXIS

The invention relates to a wind turbine having a vertical turbine shaft (3). According to the invention, the turbine shaft is provided with a joint (13) so that the turbine shaft (3) consists of an upper shaft part (10) and a lower shaft part (11 ). The invention also relates to a wind-power unit, an electric mains and a use of the wind turbine to generate electrical energy.

Device for generating hydro-electric energy

Device for generating energy making use of the current of a river (2), with a self-floating paddlewheel (13) and an electric generator set (17) that is coupled to the paddlewheel (13), whereby the device (1) is provided with an immersed housing (3) with an open bottom (4) in which the paddlewheel (13) is rotatably affixed and whereby there is a unit (10) to control the flow of the river (2) at the level of the paddlewheel (13), whereby the speed of the generator set (17) is kept constant by controlling the water level (9) in the housing (3) by placing its internal space (7) under pressure and/or by controlling the aforementioned unit (10).

Wind turbine and method for mitigating the asymmetric loads endured by the rotor or the wind turbine

A wind turbine comprises a rotor (10), a rotor hub (100), a transducer for measuring a displacement of a component of the turbine structure caused by asymmetric loads acting on the rotor, and a fixed supporting shaft (105) which supports the rotor at the rotor hub. Said transducer comprises at least one strain-gauge sensor arranged for measuring a deformation of the fixed supporting shaft due to asymmetric loads acting on the rotor. A computation system receives signals from one or more sensors and, based on the value of said signals, calculates at least one component of the asymmetric loads. The computation system commands actuators for individually setting the pitch of each blade of the turbine, in order to mitigate the asymmetric loads endured by the rotor.

WIND TURBINE

Heavy austempered ductile iron components

Gondel mit mehrteiliger Hauptwelle

Bei der erfindungsgemäßen Gondel (2) ist die Hauptwelle (3) mehrteilig ausgeführt. Diese Rotoren (21, 45) der Generatoren (4, 5) bilden Teile der Hauptwelle. Andere Wellenabschnitte (17, 18) dienen der Lagerung der Hauptwelle (3) auf den Maschinenträger bzw. Gondelgestell (7) und der Befestigung der Rotornabe (6). Die Generatoren (4, 5) können komplett mit der zugehörigen Generatorwelle vormontiert und als Montageeinheit transportiert werden. Bei der Vormontage der Generatoren sind der Rotor (21) und der Stator (26) zueinander durch Montagehilfen fixiert. Diese Montagehilfen (Arretierungen) werden entfernt, nachdem der gesamte Antriebstrang auf dem Maschinenträger (7) montiert ist. Der Stator des Generators (26) ist mit verstellbaren abstimmbaren Füßen auf dem Maschinenträger (7) montiert. In the nacelle (2) according to the invention, the main shaft (3) is designed in several parts. These rotors (21, 45) of the generators (4, 5) form parts of the main shaft. Other shaft sections (17, 18) serve to mount the main shaft (3) on the machine carrier or nacelle frame (7) and the attachment of the rotor hub (6). The generators (4, 5) can be completely pre-assembled with the associated generator shaft and transported as a mounting unit. During pre-assembly of the generators, the rotor (21) and the stator (26) are fixed to each other by assembly aids. These assembly aids (detents) are removed after the entire drive train is mounted on the machine carrier (7). The stator of the generator (26) is mounted on the machine frame (7) with adjustable tunable feet.

Scroll-Verdichter

Ein Scroll-Verdichter umfasst ein Gehäuse (16), eine fixierte Scroll (13), die mit dem Gehäuse (16) zusammenwirkt, um eine Auswurfkammer (37) zu definieren, eine bewegliche Scroll (15), die mit der fixierten Scroll (13) zusammenwirkt, um eine Verdichtungskammer (31) zu definieren, und ein Wellenunterstützungselement (11), das mit der beweglichen Scroll (15) zusammenwirkt, um eine Gegendruckkammer (20) zu definieren. Fluid in der Verdichtungskammer (31) wird der Gegendruckkammer (20) zugeführt. Die Gegendruckkammer (20) und die Auswurfkammer (37) kommunizieren mit jeder Kammer durch eine Entlastungspassage (50). Ein Sperrventil (39d) ist in der Entlastungspassage (50) angeordnet und das Sperrventil (39d) erlaubt dem Fluid von der Gegendruckkammer (20) in die Auswurfkammer (37) zu strömen, wenn der Gegendruck von der Gegendruckkammer (20) größer ist als der Auswurfdruck von der Auswurfkammer (37).

Turbine assembly

An apparatus 10 for generating electricity from water flow held behind a barrier or dam 12 comprises a venturi 14 with a convergent section 16, a mixing tube 18 and a diffuser section 22 so that the pressure at the mixing section 18 is lower than the pressure at the exit of the diffuser section 22. A turbine tube is supported in the convergent section such that an annular first flow passage 28 is defined between the turbine tube 24 and the convergent section 16, and the turbine tube 24 defines a second flow passage. The turbine tube is rotatably mounted in a support boss 26 and blades 30 are attached to the inner surface of turbine tube 24 such that water flow drives rotation of the turbine tube. The venturi reduces pressure at the turbine tube 24 outlet, so allowing efficient use with a head H as low as 1 metre.

Wind turbine with vertical axis

The invention relates to a wind turbine having a vertical turbine shaft (3). According to the invention, the turbine shaft is provided with a joint (13) so that the turbine shaft (3) consists of an upper shaft part (10) and a lower shaft part (11 ). The invention also relates to a wind-power unit, an electric mains and a use of the wind turbine to generate electrical energy.

A wind turbine system, an assembling method of a wind turbine system, an inspecting method of a wind turbine system, and an operation method of a wind turbine system

A wind turbine system includes blades which rotate by receiving wind, a nacelle which supports the blades and rotates with the blades, a main shaft for transmitting torque which is connected to the hub and is rotated by the rotation of the hub, and a generator which generates electricity using rotating energy of the main shaft, wherein the main shaft is connected to the hub inside the hub in the axial direction of the main shaft. 14 - ----- - 6a 5b ...

Capsule buoy type wave energy converter

The present invention can provide a capsule buoy type wave energy converter comprising: a buoy installed on the water surface; and a power generating unit received in the buoy in a sealed manner so as to generate power, wherein the power generating unit comprises: a generator for generating power; at least one wave actuator for converting bidirectional movement caused by wave power into unidirectional movement; a torque generator for generating torque by the unidirectional movement transmitted from the wave actuator; and an accelerator for accelerating the torque from the torque generator so as to operate the generator.

ROTOR BLADE HUB FOR A WIND TURBINE AND A WIND TURBINE HAVING SAME

The invention relates to a rotor blade hub (1) for a wind turbine (100), comprising a connection segment for coupling the rotor blade hub (1) to a main shaft of the wind turbine (100) for torque transfer. According to the invention, the rotor blade hub (1) has a single-stage transmission (3), which, on the input side, is mounted on the rotor blade hub (1) for conjoint rotation and which has the connection segment (7) on the output side.

TIDAL POWER GENERATOR

According to an embodiment of the present invention, a tidal power generator may comprise: a plurality of channel levees which are arranged spaced apart from each other so as to form a channel having a constant width and which have a plurality of installation grooves, each being formed by recessing the surface facing the channel, wherein a tidal current can move forward/backward in the channel; a first water collection levee extending from the front end of the channel levees with reference to a movement direction of the tidal current and having a peak shape of which the width is gradually reduced towards the front side of the channel; a second water collection levee extending from the rear end of the channel levees with reference to the movement direction of the tidal current and having a peak shape of which the width is gradually reduced towards the rear side of the channel; and a waterwheel module which is inserted and installed in the installation groove and can generate power using ...

TIDAL POWER GENERATOR

According to an embodiment of the present invention, a tidal power generator may comprise: a plurality of channel levees which are arranged spaced apart from each other so as to form a channel having a constant width and which have a plurality of installation grooves, each being formed by recessing the surface facing the channel, wherein a tidal current can move forward/backward in the channel; a first water collection levee extending from the front end of the channel levees with reference to a movement direction of the tidal current and having a peak shape of which the width is gradually reduced towards the front side of the channel; a second water collection levee extending from the rear end of the channel levees with reference to the movement direction of the tidal current and having a peak shape of which the width is gradually reduced towards the rear side of the channel; and a waterwheel module which is inserted and installed in the installation groove and can generate power using ...

TIDAL CURRENT ENERGY GENERATING DEVICE

A tidal current energy electric generating apparatus comprising an outer frame (1), at least one inner frame (2), at least two hydraulic turbines (3), at least one central shaft (4), at least one electric generator (5), and at least three bearings (6). The at least one inner frame (2) is detachably arranged in the outer frame (1). The at least two hydraulic turbines (3) are placed below water surface and arranged in one inner frame (2). The at least two hydraulic turbines (3) are arranged coaxially and are vertical-axis hydraulic turbines. The at least one central shaft (4) runs through the at least two hydraulic turbines (3). The central shaft (4) is perpendicular in the axial direction thereof to the water surface and rotates as the hydraulic turbines (3) rotate. The at least one electric generator (5) is placed above water surface and connected to an extremity of the central shaft (4). The at least three bearings (6) are sleeved on the central shaft (4) and respectively arranged at either ...

BUOYANCY-DRIVEN KINETIC ENERGY GENERATING APPARATUS AND METHOD FOR GENERATING KINETIC ENERGY BY USING SAME BACKGROUNG OF THE INVENTION

A buoyant kinetic energy apparatus, used for solving the problem that the kinetic energy generation efficiency of an existing buoyant kinetic energy apparatus is low, comprises: a base (1), provided with a liquid tank (11); a rotor (2), provided with a rotary body (21) and a shaft part (22), the shaft part (22) combining the rotary body (21) and the liquid tank (11), and the rotary body (21) being rotatably arranged in the liquid tank (11) by means of the shaft part (22); a float (3), telescopically arranged on the rotary body (21); and a telescoping control module (4), arranged in the liquid tank (11) and controlling the float (3) to telescope relative to the rotary body (21) when the rotary body (21) rotates.

WATER WHEEL, COUPLED STRUCTURE OF TWO EXTERNAL THREADED SHAFTS USED IN SAME, AND COUPLED STRUCTURE OF TWO SHAFTS

Tidal current power generator

A tidal current power generator according to one embodiment of the present invention comprises: a plurality of waterway embankments separated from each other to have a waterway having a constant width, and the waterway embankments being movable in the front and rear of the waterway and having a plurality of installation grooves in which a surface facing the waterway is sunk and formed; a first catchment embankment having a peak shape, extended from a front end of the waterway embankment on the basis of a movement direction of the tidal current, the first catchment embankment of which the width is gradually reduced towards the front of the waterway; a second catchment embankment having a peak shape, extended from the a rear end of the water way embankment on the basis of the movement direction of the tidal current, the second catchment embankment of which the width is gradually reduced towards the rear of the waterway; and an aberration module inserted into the installation groove, which is able to produce electric power using the movement of the tidal current.

unidade de disco de contração, ferramenta para montagem e/ou desmontagem da mesma e combinação de uma unidade de disco de contração e uma ferramenta

Wind power generator

A wind power generator is provided with a drive unit (1A), a clutch hydraulic source (94), and a clutch control portion (90). The drive unit (1A) has a hydraulic clutch mechanism (88) configured to perform switching between transmission and non-transmission of rotary power from an output shaft (66) to a pinion (100). The clutch hydraulic source (94) supplies a hydraulic pressure to the clutch mechanism (88). The clutch control portion (90) controls a hydraulic pressure supplied from the clutch hydraulic source (94) to the clutch mechanism (88).

SYSTEM AND METHOD FOR REMOVING OR INSTALLING A MAIN SHAFT OF A WIND TURBINE WITH A PUSH/PULL SYSTEM CONFIGURED AT AN END OF THE MAIN SHAFT

A method and system for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate installed atop a wind turbine tower using an assist motive system configured at a downwind end of the main shaft to push or pull the main shaft out of or into the bedplate. 1. A method for removing an installed main shaft and attached main bearing assembly of a wind turbine from a bedplate in the field , wherein a rotor has been removed from an upwind end of the main shaft , a downwind end of the main shaft has been disconnected from a gearbox , and the gearbox has been removed from the bedplate , the method comprising:supporting the upwind end of the main shaft with a rigging system, the rigging system suspended from a crane;with an assist system fixed to the downwind end of the bedplate, pushing the downwind end of the main shaft partway through the bedplate, wherein the main shaft at the downwind end is supported on a bearing unit fixed in the bedplate and the main shaft at the upwind end is supported by the rigging system;with the crane, supporting the upwind end of the main shaft to unload the bearing unit and slide the main shaft until the downwind end is free of the bearing unit;with the crane fully supporting the main shaft, horizontally sliding the main shaft out from the bedplate.2. The method of claim 1 , wherein the assist system is disconnected from the downwind end of the main shaft before or after the bearing unit is unloaded.3. The method of claim 1 , wherein the assist system is any one or combination of an electrical claim 1 , hydraulic claim 1 , pneumatic claim 1 , or electro/hydraulic system configured in a push mode at the downwind end of the main shaft.4. The method of claim 3 , wherein the assist system comprises a hydraulic ram assembly claim 3 , the method comprising configuring multiple hydraulic cylinders with rams at the downwind end of the main shaft in a manner to apply a uniform pushing force to the downwind ...

Bearing arrangement

A bearing arrangement of an electrical machine is provided that includes a drive shaft extending through a housing, the bearing arrangement including a front-end bearing arranged about a front end of the drive shaft, and a back-end bearing arranged about an opposite end of the drive shaft, wherein a bearing includes a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing includes an uneven distribution of bearing pads about the drive shaft. Furthermore, a wind turbine including such a bearing arrangement is also provided.

Vertical Tilting Blade Turbine Wind Mill

The Variable Tilting Blade Twin Turbine Wind Mill device is for capturing kinetic energy from the wind and is comprised of a shaft having a plurality of central hubs connectively attached, each central hub having a plurality of wind capture arms comprising a rotating wind capture blade having a capture surface and a slicing edge that are rotated by a rotating gear and drive gear combination connectively attached to said wind capture blades enabling a rotation of said wind capture blades wherein the wind capture blades are rotated between a blade-mode to capture the wind and a knife-mode to pass with less drag resistance through the air/wind thereby enabling an increase in the ability to capture more of the energy available in the wind stream. 1. A variable tilting blade windmill device for capturing kinetic energy from a wind comprisinga shaft having a first end and a second end wherein said second end is connectively attached through a rolling bearing to a drive shaft, an inner blade rod having a base end connectively attached to said shaft proximal to said central hub,', 'an outer blade sleeve enclosing a majority of the length of said inner blade rod having a rotating gear connectively attached to said wind capture blade,', 'a drive gear connectively attached to said shaft at a right angle enabling a rotation of said wind capture blade., 'a wind capture blade having a capture surface and a slicing edge comprising'}, 'a central hub connectively attached to said first end having a plurality of wind capture arms comprising'}2. The device of wherein said drive gear is connectively attached to said central hub at a right angle enabling a rotation of said outer blade sleeve.3. The device of wherein said wind capture blades have a push orientation positioned wherein said capture surface is positioned facing an on-coming wind and are rotated by said wind through a rotation about said shaft of between 120° and 240° and are then rotated 90° to present said slicing edge in ...

SHRINK DISK CONNECTION FOR A WIND TURBINE

Joint between the gearbox input shaft and the rotor rotation shaft

The joint between the gearbox input shaft and the rotor rotation shaft is made with a banded flange that combines an interference joint between the horizontal surface of the rotor shaft (4) and the internal surface of the flange (5), with a bolted joint between the vertical surface of the flange (5) and the front surface of the body of the gearbox (4) corresponding to the low speed shaft. The interference joint adds a keyway between both surfaces with their corresponding key (9). Likewise included is an assembly method with a surface treatment at temperature T1, flange heating (5) in an oven at a temperature T2, a banding of the flange (5) on the rotor rotation shaft (4) having the keyway line up with the key (9), a subsequent cooling and finally a bolted joint between the flange (5) and the gearbox (3).

Sicherungsring-Haltevorrichtung für eine Hauptwelle in einer Windkraftanlage

Halteanordnung zur Sicherung einer Hauptrotorwelle in einer Windkraftanlage in Bezug auf einen Lagerblock, die aufweist:eine Hauptrotorwelle, die geeignet ist, um sich durch den Lagerblock zu erstrecken;eine Ringnut, die in einer äußeren Umfangsfläche der Hauptrotorwelle ausgebildet und im montierten Zustand zu dem Lagerblock axial versetzt angeordnet ist;einen Sicherungsring, der in die Ringnut eingreift; undeine Entlastungsnut, die in der äußeren Umfangsfläche der Hauptrotorwelle ausgebildet und zu der Ringnut axial versetzt angeordnet ist, wobei die Entlastungsnut eine radiale Tiefe aufweist und in einem axialen Abstand zu der Ringnut ausgebildet ist, um so Spannungen an der Ringnut zu reduzieren,wobei der Sicherungsring und die Ringnut konstruiert sind, um eine auslegungsgemäße axiale Belastbarkeit zu erreichen.

TIDAL POWER GENERATOR

According to an embodiment of the present invention, a tidal power generator may comprise: a plurality of channel levees which are arranged spaced apart from each other so as to form a channel having a constant width and which have a plurality of installation grooves, each being formed by recessing the surface facing the channel, wherein a tidal current can move forward/backward in the channel; a first water collection levee extending from the front end of the channel levees with reference to a movement direction of the tidal current and having a peak shape of which the width is gradually reduced towards the front side of the channel; a second water collection levee extending from the rear end of the channel levees with reference to the movement direction of the tidal current and having a peak shape of which the width is gradually reduced towards the rear side of the channel; and a waterwheel module which is inserted and installed in the installation groove and can generate power using movements of the tidal current. 1. A tidal power generation apparatus comprising:a plurality of channel levees spaced apart from each other to form a channel having a constant width, allowing tidal current to move forward or backward of the channel, and each having a plurality of installation grooves formed in a recessed shape at a surface thereof facing the channel;a first water collection levee extending from a front end of each channel levee based on a movement direction of the tidal current and having a tapered shape such that a width thereof gradually decreases towards the front of the channel;a second water collection levee extending from a rear end of the channel levee based on a movement direction of the tidal current and having a tapered shape such that a width thereof gradually decreases towards the rear of the channel; andwaterwheel modules inserted into the installation grooves and capable of generating power using movement of the tidal current,wherein the waterwheel ...

OFFSET PERPENDICULAR AXIS TURBINE

A perpendicular axis turbine having at least two blades, wherein the blades are longitudinally offset with respect to one another, reducing the effects of blade-vortex interaction and providing increased power generation. In one embodiment, the blades are longitudinally offset such that the attachment point of one blade is halfway between the attachment points for the other blade. 1. A perpendicular axis turbine comprising:a central turbine shaft;a first blade having an airfoil cross-section, said first blade attached to the central turbine shaft and defining a first path as said first blade revolves about a central axis of said central turbine shaft; anda second blade having an airfoil cross-section, said second blade attached to the central turbine shaft and defining a second path as said second blade revolves about said central axis of said central turbine shaft;wherein a shape of the second blade is the same as a shape of the first blade and a first path profile of said first path partially intersects a second path profile of said second path.2. The perpendicular axis turbine according to claim 1 , comprising at least one additional blade having an airfoil cross-section claim 1 , said at least one additional blade being attached to the central turbine shaft and defining an additional path as said additional blade revolves about said central axis of said central turbine shaft claim 1 , wherein a profile of said additional path partially intersects said first path profile and partially intersects said second path profile.3. The perpendicular axis turbine according to claim 1 , wherein the first and second blades are each attached to the central turbine shaft using at least two attachment points.4. The perpendicular axis turbine according to claim 1 , wherein the first and second blades have a curved shape.5. The perpendicular axis turbine according to claim 4 , wherein the first and second blades are each attached to the central turbine shaft by rigid linear ...

TENSIONED SUPPORT POST AND OTHER MOLTEN METAL DEVICES

A vertically-elongated member, which is preferably a support post used in a molten metal pump, includes a ceramic tube and tensioning structures to add a compressive load to the tube along its longitudinal axis. This makes the tube less prone to breakage. Another vertically-elongated member, such as a support post, includes one or more reinforcement members to help alleviate breakage. A device, such as a pump, used in a molten metal bath includes one or more of such vertical members. 1. A component for use in a molten metal pump , the component comprising:an outer core constructed of graphite or ceramic;a tension rod positioned partially inside the outer core, wherein the tension rod has a first end and a second end, and is configured to apply an axial compressive force to the outer core in order to make the outer core less susceptible to breakage;wherein the first end of the tension rod extends beyond the outer core and has an axially-compressive component positioned thereon, the axially-compressive component positioned against the outer core to place an axial-compressive force on the outer core.2. The component of claim 1 , wherein the tension rod has a first end and a second end claim 1 , the outer core has a first end and a second end claim 1 , and at least one of the first end or second end of the tension rod extends beyond either the first end or second end of the outer core.3. The component of claim 2 , wherein either the first end or the second end of the outer core has a cap claim 2 , and the end of the tension rod that extends beyond the end of the outer core is tightened against the cap.4. The component of claim 1 , wherein the tension rod comprises at least one elongate claim 1 , metal rod.5. The component of claim 4 , wherein the elongate claim 4 , metal rod is comprised of steel.6. The component of that is a molten metal pump support post.7. The component of claim 1 , wherein the tension rod is secured in the outer core by cement.8. The component of ...

ROTARY AIDED CONJUNCTIVE ENERGY SYSTEM

The present application includes a system for generating energy via a rotating drum. The system includes a housing, a drum, and a plurality of enclosed chambers. The housing surrounds the drum and helps to distinguish between a gravitational domain and a buoyancy domain. The drum is coupled to a shaft and configured to rotate within the housing about a central axis. The plurality of enclosed chambers are radially aligned around an internal surface of the drum. The drum is exposed to a gravitational domain and a buoyancy domain simultaneously so as to induce rotation of the drum around the shaft. The enclosed chambers are subjected to gravitational forces in the gravitational domain and the enclosed chambers are subjected to buoyancy forces in the buoyancy domain. 1. A rotary aided conjunctive energy system , comprising:a housing;a drum coupled to a shaft and configured to rotate within the housing about a central axis, the central axis concentric with the shaft;a plurality of enclosed chambers radially aligned around the drum;wherein the drum is exposed to a gravitational domain and a buoyancy domain simultaneously so as to induce rotation of the drum around the shaft, the enclosed chambers being subjected to gravitational forces in the gravitational domain and the enclosed chambers being subjected to buoyancy forces in the buoyancy domain.2. The system of claim 1 , wherein gravitational forces and buoyancy forces are exerted upon separate enclosed chambers within the drum simultaneously so as to maintain a direction of rotation.3. The system of claim 1 , wherein the shaft is configured to function so as to incorporate a unidirectional ratchet so as to regulate the direction of rotation of the drum.4. The system of claim 1 , wherein the plurality of enclosed chambers are filled with a mixture of air and fluid.5. The system of claim 4 , wherein the ratio of air and fluid may be selectively adjusted.6. The system of claim 1 , further comprising:a second drum, the drum ...

RAPIDLY AVAILABLE ELECTRIC POWER FROM A TURBINE-GENERATOR SYSTEM HAVING AN AUXILIARY POWER SOURCE

Turbine-generator systems having an auxiliary power source and methods of operating turbine-generator systems having auxiliary power sources in a high, intermittent load environment are provided. The turbine may be sized to meet substantially all the power required by the intermittent load. The auxiliary power source may have a power rating approximately equal to the power required to rotate the unloaded generator at an operational speed. The method may include decoupling the turbine from the generator, removing the load from the generator, coupling the auxiliary power source to the unloaded generator, and maintaining the operational rotational speed of the generator with the auxiliary power source. 1. In a high intermittent load environment , wherein a gas turbine drives a generator to provide power to an intermittent load and the gas turbine is sized to meet substantially all the power required by the intermittent load , a method of maintaining an operational rotational speed of the generator in a standby mode , comprising:decoupling the gas turbine from the generator;removing the load from the generator;coupling an auxiliary power source to the unloaded generator; andmaintaining the operational rotational speed of the generator with the auxiliary power source, wherein the auxiliary power source has a continuous maximum power rating approximately equal to power required to rotate the unloaded generator at the operational rotational speed.2. The method of claim 1 , wherein the auxiliary power source is an electric power source.3. The method of claim 2 , further comprising:supplying electrical power from the electric power source to the generator; andoperating the generator as a motor.4. The method of claim 2 , further comprising:supplying electrical power from the electric power source to a secondary motor; androtating the unloaded generator with the secondary motor.5. The method of claim 2 , wherein the electric power source is selected from the group consisting ...

CLAMPING APPARATUS FOR POSITIONING A MAIN BEARING OF A WIND TURBINE DURING AN INSTALLATION AND/OR REPAIR PROCEDURE

A clamping apparatus for positioning a main bearing of a wind turbine includes a push component arranged between a main flange of a main shaft of the wind turbine and a cover of the main bearing. Further, the clamping apparatus includes a spacer plate located within a gap between the cover and the main bearing. As such, the push component is configured to apply a force to the cover so as to push the spacer plate against the main bearing such that the main bearing is pushed into and secured in place. 1. A clamping apparatus for positioning a main bearing of a wind turbine , the clamping apparatus comprising:a push component arranged between a main flange of a main shaft of the wind turbine and a cover of the main bearing; and,a spacer plate located within a gap between the cover and the main bearing,wherein the push component is configured to apply a force to the cover so as to push the spacer plate against the main bearing such that the main bearing is pushed into and secured in place.2. The clamping apparatus of claim 1 , wherein the push component comprises a push member at least partially enclosed within a housing claim 1 , the push member comprising at least one of a piston or jacking fastener.3. The clamping apparatus of claim 1 , wherein the spacer plate further comprises one or more locating features for locating the spacer plate within the gap.4. The clamping apparatus of claim 3 , wherein the one or more locating features comprise dowel pins claim 3 , fasteners claim 3 , or studs.5. The clamping apparatus of claim 1 , wherein the spacer plate comprises an arcuate shape corresponding to a profile of the main bearing.6. The clamping apparatus of claim 1 , wherein the spacer plate comprises a recess configured to receive a portion of the cover of the main bearing.7. The clamping apparatus of claim 6 , wherein the spacer plate further comprises one or more securing features for securing the spacer plate within the gap.8. The clamping apparatus of claim 7 , ...

DRIVE TRAIN ARRANGEMENT

A drive train arrangement preferentially for a wind power plant having a rotor shaft, a generator, and a gear, which is indirectly or directly connected to the rotor shaft and the generator. The gear is at least partly or completely integrated in the rotor shaft. 1. A drive train arrangement comprising:a rotor shaft;a generator; anda gear that is indirectly or directly connected to the rotor shaft and the generator,wherein the gear is at least partly or completely integrated in the rotor shaft.2. The drive train arrangement according to claim 1 , further comprising:a machine support, which is fixed in place, is arranged between the generator and the gear seen in an axial direction of the rotor shaft, and on which the generator is fixed directly on a one side and the gear indirectly or directly on a side located diametrically opposite.3. The drive train arrangement according to claim 1 , wherein the gear is connected to the rotor shaft by a torsionally rigid coupling.4. The drive train arrangement according to claim 1 , wherein the rotor shaft is mounted on a surrounding structure by sliding bearings or rolling bearings mounted on an outside of the rotor shaft.5. The drive train arrangement according to claim 1 , wherein the generator is connected to a driveshaft configured as an output shaft of the gear.6. The drive train arrangement according to claim 1 , wherein the gear is configured as a planetary gear.7. The drive train arrangement according to claim 6 , wherein the gear comprises:at least two planetary stages, internal gears of the at least two planetary stages are fixed to one another indirectly through housing components or directly and non-rotatably, as a result of which a sequential housing group of at least the internal gears is formed.8. The drive train arrangement according to claim 7 , wherein the gear further comprises a planet carrier connected to a machine support by a torsionally rigid coupling.9. The drive train arrangement according to claim 7 , ...

Tidal current energy generating device

A tidal current energy generating device includes an outer frame ( 1 ), at least one inner frame ( 2 ), at least two hydro turbines ( 3 ), at least one center shaft ( 4 ), at least one generator ( 5 ), and at least three bearings ( 6 ). The at least one inner frame ( 2 ) is separably disposed in the outer frame ( 1 ). At least two hydro turbines ( 3 ) are located below a water surface and are disposed in one inner frame ( 2 ). At least two hydro turbines ( 3 ) are disposed coaxially and are vertical-axis hydro turbines. At least one center shaft ( 4 ) is disposed through the at least two hydro turbines ( 3 ), the axis direction of the center shaft is perpendicular to the horizontal plane, and the center shaft ( 4 ) rotates along with the rotating of the hydro turbines ( 3 ). The at least one generator ( 5 ) is located above the water surface and connected with one end of the center shaft ( 4 ). The at least three bearings are sleeved on the center shaft ( 4 ) and are located on two sides of and between the two hydro turbines ( 3 ), respectively. The tidal current energy generating device can be modularly assembled and replaced above the water surface and can extend along the water depth direction, thereby improving the power generating efficiency.

DRIVETRAIN ASSEMBLY FOR A WIND TURBINE

A drivetrain assembly for a wind turbine includes a main shaft, a bearing operatively coupled to an end of the main shaft, a bearing housing surrounding the bearing, and a gearbox having, at least, a ring gear. The ring gear is positioned adjacent to the bearing housing and includes an outer circumferential surface. The drivetrain assembly also includes at least one flexible member arranged at an interface between the bearing housing and the ring gear. As such, the flexible member(s) is configured to reduce vibrations generated by the gearbox. 1. A drivetrain assembly for a wind turbine , the assembly comprising:a main shaft;a bearing operatively coupled to an end of the main shaft;a bearing housing surrounding the bearing;a gearbox comprising, at least, a ring gear, the ring gear positioned adjacent to the bearing housing, the ring gear comprising an outer circumferential surface; and,at least one flexible member arranged at an interface between the bearing housing and the ring gear, the at least one flexible member configured to reduce vibrations generated by the gearbox.2. The drivetrain assembly of claim 1 , further comprising a plurality of flexible members arranged on the outer circumferential surface of the ring gear at the interface.3. The drivetrain assembly of claim 2 , wherein each of the plurality of flexible members is arranged in a notch formed into the bearing housing.4. The drivetrain assembly of claim 2 , further comprising at least one compression member arranged on the outer circumferential surface of the ring gear on an opposing side of the plurality of flexible members from the bearing housing claim 2 , the at least one compression member secured to the bearing housing so as to compress the plurality of flexible members.5. The drivetrain assembly of claim 4 , wherein the least one compression member comprises a plurality of corresponding notches claim 4 , the corresponding notches configured to align with the notches of the bearing housing.6. ...

BEARING ARRANGEMENT

A bearing arrangement of an electrical machine is provided that includes a drive shaft extending through a housing, the bearing arrangement including a front-end bearing arranged about a front end of the drive shaft, and a back-end bearing arranged about an opposite end of the drive shaft, wherein a bearing includes a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing includes an uneven distribution of bearing pads about the drive shaft. Furthermore, a wind turbine including such a bearing arrangement is also provided. 1. A bearing arrangement of an electrical machine that includes a drive shaft extending through a housing , the bearing arrangement comprising:a front-end bearing arranged about a front end of the drive shaft; anda back-end bearing arranged about an opposite end of the drive shaft;wherein the front-end bearing and the back-end bearing each comprise a plurality of bearing pads arranged in an annular space between the drive shaft and the housing, and wherein at least one bearing of the front-end bearing and the back-end bearing comprises an uneven distribution of the plurality of bearing pads about the drive shaft.2. The bearing arrangement according to claim 1 , wherein the front-end bearing and the back-end bearing are virtually divided into an upper half and a lower half by a horizontal plane containing an axis of rotation of the drive shaft claim 1 , and wherein an uneven distribution of the plurality of bearing pads comprises different numbers of bearing pads in the upper half and the lower half.3. The bearing arrangement according to claim 1 , wherein the front-end bearing comprises the uneven distribution of the plurality of bearing pads about the drive shaft.4. The bearing arrangement according to claim 3 , wherein the front-end bearing comprises more bearing pads in the lower half of the front-end bearing than in the upper half of the front-end bearing.5. The bearing ...

SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

A scroll compressor includes a crank shaft , an orbiting scroll , and a second plug part . The crank shaft has a lubricant channel which allows lubricant to flow therethrough. The orbiting scroll is attached to the crank shaft and has a second inner channel that allows the lubricant supplied thereto through the crank shaft to outwardly flow therethrough. The second plug part serving as an adjustment part is provided in the second inner channel of the orbiting scroll and adjusts a flow amount of the lubricant flowing through the second inner channel 1. A scroll compressor comprising:a crank shaft having a lubricant channel which allows lubricant to flow therethrough;an orbiting scroll attached to the crank shaft;{'b': '6', 'inner channels provided in the orbiting scroll, including a first inner channel and a second inner channel, and allowing the lubricant supplied thereto through the crank shaft () to outwardly flow therethrough; and'}an adjustment part provided in the at least one second inner channel and configured to adjust a flow amount of the lubricant flowing through the at least one inner channel.2. The scroll compressor of claim 1 ,wherein the adjustment part has a through hole having a smaller area of a channel than an area of a channel for the lubricant in the at least one inner channel.3. The scroll compressor of claim 2 ,{'b': 1', '2', '2', '1, 'wherein, when a diameter of a hole of the at least one inner channel is R and a diameter of a hole of the through hole is R, following relationships are satisfied: R/R is from 30 to 50%.'}4. The scroll compressor of claim 1 , a discoidal base plate, and', 'a cylindrical part that projects from one surface of the base plate, and, 'wherein the orbiting scroll includes'}wherein one end of the at least one inner channel is connected to an inside of the cylindrical part at one end and an other end penetrates the base plate to an outer side of the base plate.5. The scroll compressor of claim 4 ,wherein a plug part that ...

Device and method for detecting defect in main shaft of wind turbine

The present disclosure provides a device and method for detecting a defect in a main shaft of a wind turbine. The device includes: an excitation source, configured to generate an electromagnetic ultrasonic guided wave signal; a nickel strap, magnetized and disposed on an outer surface of an end of the main shaft; a coil, disposed at the nickel strap, configured to receive the electromagnetic ultrasonic guided wave signal such that the electromagnetic ultrasonic guided wave signal propagates in the main shaft, the coil and the nickel strap being configured to transform the electromagnetic ultrasonic guided wave signal propagating in the main shaft into an electrical signal by electromagnetic induction; a signal collector, configured to collect the electrical signal and transform the electrical signal into guided wave detection data and a wireless communication component, configured to transmit the guided wave detection data to a remote equipment.

POWER GENERATING DEVICE

A power generating apparatus is provided which has a simple configuration with excellent maintainability and power generation efficiency. A power generating apparatus includes an inlet pipe , a rotational coupling unit , a generator , and a rotating blade . The inlet pipe is connected to a supply source of a liquid WK and guides the liquid WK to the rotational coupling unit . The rotational coupling unit rotatably couples an input shaft of the generator to the inlet pipe . The input shaft configures a rotor in the generator and is formed into a pipe that conveys the liquid WK to a base pipe of the rotating blade to function as piping. The generator generates electric power on the basis of rotary motion of the input shaft . The rotating blade includes two arm pipes on an outer side in a radial direction of the base pipe formed into a pipe, and is rotationally driven by jetting the liquid WK along a circumferential direction of the base pipe through a discharge tube provided at a distal end portion of each of the arm pipes 1. A power generating apparatus comprising:an inlet pipe configured to receive and convey a liquid;a rotating blade including a base pipe constituted by a pipe body communicating with the inlet pipe, the rotating blade being configured to jet the liquid in a circumferential direction of the base pipe and rotate along the circumferential direction;a generator including an input shaft where a rotary drive force is inputted, the generator being configured to convert the rotary drive force into electrical energy; anda rotational coupling unit rotatably coupling the base pipe, directly or via the input shaft, to the inlet pipe, whereinthe input shaft is provided in such a manner as to penetrate the generator,the generator generates electric power on the basis of the rotary drive of the base pipe connected to the input shaft,the input shaft is connected at one end portion to the rotational coupling unit,the input shaft is connected at the other end ...

A WIND TURBINE COMPRISING A TORQUE TRANSMITTING COUPLING

A wind turbine () comprising a torque transmitting coupling () between a first rotatable part () and a second rotatable part () of the wind turbine (), e.g. in the form of a hub () and a shaft (), is disclosed. The torque transmitting coupling () comprises a form- fitted coupling and a compression means (). The form-fitted coupling defines a plurality of drive flanks formed on the first rotatable part () and a plurality of driven flanks formed on the second rotatable part (). The compression means () is arranged on an internal or external perimeter of the form-fitted coupling, and the compression means () provides a frictional coupling between the first rotatable part () and the second rotatable part (). The torque transmitting coupling () is capable of locking up to six degrees of freedom between the first rotatable part () and the second rotatable part (), while allowing the first rotatable part () and the second rotatable part () to be easily dissembled. 1. A wind turbine comprising a torque transmitting coupling between a first rotatable part and a second rotatable part of the wind turbine , the first rotatable part and the second rotatable part being arranged concentrically with respect to each other , the torque transmitting coupling comprising:form-fitted coupling defining a plurality of drive flanks formed on the first rotatable part and a plurality of driven flanks formed on the second rotatable part, the drive flanks being arranged in torque transmitting engagement with the driven flanks, and the drive flanks and the driven flanks extending substantially along a direction defined by an axis of rotation of the first and second rotatable parts, anda compression means arranged on an internal or external perimeter of the form-fitted coupling, the compression means providing a frictional coupling between the first rotatable part and the second rotatable part.2. The wind turbine according to claim 1 , wherein the form-fitted coupling defines a plurality of lands ...

ROTATING EQUIPMENT HAVING STATIC TORQUE COUPLING BETWEEN DRIVER AND DRIVEN

Rotating equipment includes driver equipment, driven equipment and a rotating shaft coupling. The driver equipment includes a driver support connected to a stationary driver shaft, and also includes a driver arranged on the driver support with a driving shaft to rotate and provide a rotational torque. The driven equipment includes a driven unit support connected to a stationary driven unit shaft, and also includes a driven unit arranged on the driven unit support with a driven shaft to respond to the rotational torque and rotate. The rotating shaft coupling couples the driving shaft to the driven shaft and applies the rotational torque from the driving shaft to the driven shaft. The stationary driver shaft couples to the stationary driven unit shaft to provide a static torque load to counteract the rotational torque applied from the driving shaft to the driven shaft during operation. 1. Rotating equipment comprising:driver equipment having a driver support with a stationary driver shaft connected thereto, and also having a driver arranged on the driver support with a driving shaft configured to rotate and provide a rotational torque;driven equipment having a driven unit support with a stationary driven unit shaft connected thereto, and also having a driven unit arranged on the driven unit support with a driven shaft configured to respond to the rotational torque and rotate; anda rotating shaft coupling configured to couple the driving shaft to the driven shaft and apply the rotational torque from the driving shaft to the driven shaft;the stationary driver shaft being coupled to the stationary driven unit shaft and configured to provide a static torque load to counteract the rotational torque applied from the driving shaft to the driven shaft during operation.2. Rotating equipment according to claim 1 , wherein the stationary driver shaft has a stationary driver shaft end; the stationary driven unit shaft has a stationary driven unit shaft end; and the stationary ...

Axial flux machine and method for the manufacturing thereof

A method for manufacturing an axial flux machine adapted for generating a magnetic flux along the axis of rotation, includes the manufacturing of one or more stators, having the following steps: providing a surface comprising one or more flat support surfaces perpendicular to the axis of rotation; positioning one or more boundary elements, individual stator elements, and a ring element on the one or more support surfaces. At least one of the boundary elements is a cooling element adapted for conducting heat. The stator elements each has a ferromagnetic core and an electric winding wound around the ferromagnetic core, and filling the empty space between the outer circumference, the stator elements and the ring element with an electrically insulating filling material.

Wind-driven energy converting device

Wind-driven energy converting device () is disclosed. The wind-driven energy converting device () comprises a main pendulum () comprising a pendulum bob () attached to a pendulum rod (). A sail member () attached to the pendulum rod () in a higher position than the pendulum rod (). The main pendulum () is suspended in a frame () by means of a bearing unit () allowing the pendulum rod () to be rotated about two perpendicular horizontal axes (X, Y) at the same time. The main pendulum () is mechanically attached to at least one secondary pendulum () by means of a connection structure (). The secondary pendulum () is connected to and being configured to rotate a driving shaft () upon being moved due to motion of the main pendulum (). 1. A wind-driven energy converting device comprising a main pendulum comprising a pendulum bob attached to a pendulum rod , wherein a sail member attached to the pendulum rod in a higher position than the pendulum rod , wherein the main pendulum is suspended in a frame by means of a bearing unit allowing the pendulum rod to be rotated about two perpendicular horizontal axes (X , Y) at the same time , characterised in that the main pendulum is mechanically attached to at least one secondary pendulum by a connection structure , wherein the secondary pendulum is connected to and being configured to rotate a driving shaft upon being moved due to motion of the main pendulum.2. The wind-driven energy converting device according to claim 1 , characterised in that the connection structure is a wire or string.3. The wind-driven energy converting device according to claim 1 , characterised in that the wind-driven energy converting device comprises a frame comprising a plurality of rods.4. The wind-driven energy converting device according to claim 3 , characterised in that the pendulum rod of the main pendulum is suspended to the frame by means of a bearing unit attached to two rods of the frame.5. The wind-driven energy converting device according ...

Flange arrangement, flanged hub, stop member, gear unit, electric motor, wind turbine and industrial application

A flange arrangement includes a power shaft, a flanged hub connected detachably to the power shaft, and a stop member configured to detachably hold the flanged hub on the power shaft and to exert a disassembly force on the flanged hub so as to be able to rotate about a rotation axis of the power shaft.

HEATING DEVICE FOR BEARING PROTECTION OF WIND POWER GENERATOR AND BEARING SYSTEM

A heating device for protecting a bearing of a wind power generator and a bearing system, wherein the heating device is applied to a main shaft of the wind power generator that is externally provided with a bearing, and the heating device is disposed inside the main shaft at a position corresponding to the position of the bearing. The heating device includes multiple circular arc sections, a flexible heat source and a supporting device. The flexible heat source is provided between the circular arc sections and an inner wall of the main shaft. The supporting device supports the internal surface of the circular arc sections, so that the flexible heat source is closely adhered to the inner wall of the main shaft. A heat source is provided for the bearing by the heating device for bearing protection of a wind power generator and the bearing system. 1. A heating device for protecting a bearing of a wind power generator , wherein the heating device is applied to a main shaft of a wind power generator with a bearing sleeved on the main shaft , the heating device is arranged inside the main shaft at a position corresponding to the bearing , and the heating device comprises:a plurality of circular arc sections,a flexible heat source arranged between an inner wall of the main shaft and the plurality of circular arc sections, anda support device configured to support inner surfaces of the plurality of circular arc section for closely fitting the flexible heat source against the inner wall of the main shaft.2. The heating device for protecting the bearing of the wind power generator according to claim 1 , whereineach of the plurality of circular arc sections have the same size and the number of the plurality of circular arc sections is an even number, each two radially opposed circular arc sections form a group, the support device comprises a plurality of groups of left-spiral support bars, right-spiral support bars and bi-directional-spiral sleeves, with the number of the ...

Buoyancy Driven Kinetic Energy Generating Apparatus and Method of Generating Kinetic Energy by the Apparatus

A buoyant kinetic energy apparatus, used for solving the problem that the kinetic energy generation efficiency of an existing buoyant kinetic energy apparatus is low, comprises: a base ( 1 ), provided with a liquid tank ( 11 ); a rotor ( 2 ), provided with a rotary body ( 21 ) and a shaft part ( 22 ), the shaft part ( 22 ) combining the rotary body ( 21 ) and the liquid tank ( 11 ), and the rotary body ( 21 ) being rotatably arranged in the liquid tank ( 11 ) by means of the shaft part ( 22 ); a float ( 3 ), telescopically arranged on the rotary body ( 21 ); and a telescoping control module ( 4 ), arranged in the liquid tank ( 11 ) and controlling the float ( 3 ) to telescope relative to the rotary body ( 21 ) when the rotary body ( 21 ) rotates.

Bearing arrangement for a wind turbine and wind turbine

Provided is a bearing arrangement for a wind turbine including a bearing housing and a drive shaft, whereby the drive shaft is arranged within the bearing housing in an axial direction along a longitudinal axis of the bearing housing, the bearing arrangement further comprising a downwind bearing and an upwind bearing as radial fluid bearings, whereby the downwind bearing and the upwind bearing are arranged between the bearing housing and the drive shaft, whereby the bearing housing is formed from at least two separate bearing housing pieces, whereby the at least two separate bearing housing pieces are joined with each other and/or the drive shaft is formed from at least two separate drive shaft pieces, whereby the at least two separate drive shaft pieces are joined with each other

PLANETARY TRANSMISSION, POWERTRAIN AND WIND TURBINE

A planetary transmission includes a ring gear holder and a ring gear for accommodating at least one planetary gear. The ring gear holder can be connected to a housing component at its end face, and a plurality of recesses for accommodating fastening means are embodied at an end face of the ring gear holder. Accommodated in at least one of the recesses is a hollow element, in which a fastening screw is accommodated. The hollow element establishes a positive-fit engagement between the ring gear holder and the housing component. 114.-. (canceled)15. A planetary transmission , comprising:a housing component;a ring gear holder configured for connection to the housing component, with the ring gear holder and the housing component having abutting end faces formed with aligned recesses;a ring gear received in the rear gear holder for interacting with at least one planetary gear;a hollow element accommodated in at least one of the recesses to establish a positive-fit engagement between the ring gear holder and the housing component, said at least one of the recesses being embodied as a bore hole defined by a first bore hole diameter and a second bore hole diameter;a fastening screw received in the hollow element; anda torque support attached to the housing component, with the at least one of the recesses, with the hollow element accommodated therein and the fastening screw, being arranged in a region of the torque support.16. The planetary transmission of claim 15 , wherein the hollow element is embodied as a hollow pin or as a tensioning sleeve.17. The planetary transmission of claim 15 , wherein the ring gear is accommodated in the ring gear holder in a non-rotating manner or is embodied in one piece with the ring gear holder.18. The planetary transmission of claim 15 , wherein a stepped or a conical transition is embodied between a first region with the first bore hole diameter and a second region with the second bore hole diameter.19. The planetary transmission of claim ...

RUNNER UNIT FOR A HYDRO TURBINE

A hydro turbine with a runner unit allows adjusting the gap clearance downstream and between the runner end tip portion and the inner edge of the blades. This gap clearance may depend on the angular position of the runner blades. 1. A runner unit for a hydro turbine , comprising:a runner body,at least one blade rotatably mounted thereon, andan end tip portion,wherein said end tip portion is movable relative to said runner body between an extended operative position and a retracted operative position.2. The runner unit according to claim 1 , further comprising a mechanism interposed between said at least one rotatable blade and said end tip portion claim 1 , wherein the mechanism is configured to adjust the position of said end tip portion based on an angle of rotation of said at least one blade.3. The runner unit according to claim 2 , wherein said mechanism comprises a piston adapted to reciprocate along a shaft of the runner unit claim 2 , and having an upstream portion coupled to said at least one blade configured to cause its rotation claim 2 , and a downstream portion integral to said runner end tip.4. The runner unit according to claim 3 , wherein said end tip portion comprises an annular seal member coupled to said downstream portion of said piston.5. The runner unit according to claim 4 , wherein said annular seal member is located inside said runner body when said end tip portion is in the retracted operative position claim 4 , and said annular seal member protrudes out of said runner body when said end tip portion is in the extended operative position.6. The runner unit according to claim 5 , wherein said at least one blade is rotatably fitted on said runner body by a trunnion portion having a lever coupled to said piston.7. The runner unit according to claim 4 , wherein said at least one blade is rotatably fitted on said runner body by a trunnion portion having a lever coupled to said piston.8. The runner unit according to claim 3 , wherein said at least ...

Waterwheel for a Waterwheel Energy System

A water driven electrical power generating system has a frame with a waterwheel carried within the frame in an upright manner having a plurality of water receiving elements for turning the waterwheel. A water discharge manifold is used to discharge water from a discharge end in alignment with the water receiving elements. A water collection reservoir disposed below the waterwheel for the collection of water which has been discharged from the manifold and received by the water receiving elements. A water pump is used to pump water from the reservoir through the water discharge manifold. The waterwheel has side plates with outwardly extending axle shafts which are used to drive an electrical generator as the wheel rotates. 1. A water driven electrical power generating system , the system comprising:a frame serving as an enclosure for components of the system;a waterwheel carried within the frame in an upright manner having a plurality of water receiving elements for turning the waterwheel in response to a discharge of water against the water receiving elements;water discharge manifold associated with the frame enclosure having a discharge end disposed above the waterwheel in discharge alignment with the water receiving elements;a water collection reservoir disposed below the waterwheel and integral with the frame for the collection of water which has been discharged from the manifold and received bathe water receiving elements;a water pump for pumping water from the water collection reservoir through the water discharge manifold and out the discharge end thereof onto the water receiving elements;wherein the waterwheel has a pair of spaced apart wheel shaped side plates each having an exterior surface and an interior surface, and wherein each of the side plates has an axle shaft welded thereon at a right angle to the exterior surface at a central location on each of the side plates, the axle shafts each being mounted in a bearing structure on the frame for rotational ...

MOUNTING SEGMENTS AND A WIND TURBINE WITH MOUNTING SEGMENTS

The disclosure relates to a main shaft of a wind turbine with mounting segments. The main shaft includes a shaft portion and a disc portion. The disc portion includes a coupling surface, a hollow portion, and an alignment portion. The alignment portion is characterized by one or more mounting segments coupled with the alignment portion. The mounting segments are configured to align a component of the wind turbine with the central axis of the main shaft. Further, the one or more mounting segments are coupled to the alignment portion using at least one fastening device. The mounting segments have a thickness ‘t’ that may be constant or varied based on the component of the wind turbine coupled to the main shaft. 1. A main shaft of a wind turbine , the main shaft comprising:a shaft portion; anda disc portion comprising a coupling surface, a hollow portion, and an alignment portion,wherein the alignment portion has one or more mounting segments coupled with the alignment portion, wherein the one or more mounting segments are configured to align a component of the wind turbine with a central axis of the main shaft.2. The main shaft of claim 1 , wherein the one or more mounting segments are coupled to the alignment portion using at least one fastening device.3. The main shaft of claim 2 , wherein each mounting segment of the one or more mounting segments has a thickness claim 2 , wherein the thickness is constant for each mounting segment.4. The main shaft of claim 2 , wherein each mounting segment of the one or more mounting segments has a thickness claim 2 , wherein the thickness varies for each mounting segment.5. The main shaft of claim 1 , wherein each mounting segment of the one or more mounting segments has a thickness claim 1 , wherein the thickness is constant for each mounting segment.6. The main shaft of claim 1 , wherein each mounting segment of the one or more mounting segments has a thickness claim 1 , wherein the thickness varies for each mounting segment.7. ...

WATER OUTLET DEVICE OF SELF POWER GENERATION

A water outlet device with self power generation has a fixing unit that includes an inlet waterway and at least one first outlet waterway and at least one second outlet waterway. The first outlet waterway is connected to the inlet waterway through an electric-control valve and the second outlet waterway is connected to the inlet waterway. A power generation mechanism is fixed in the fixing unit; a fast energy storage component; a control unit comprises a control circuit and a control module; the control circuit, fast energy storage component, electric-control valve and the power generation mechanism are in electric-connection, the electric energy generated by the power generation mechanism is stored by the fast energy storage component after rectification, the control circuit gets the electric energy through the fast energy storage component and controls the electric-control valve. 1. A water outlet device of self power generation , wherein it comprises:A fixing unit, it has an inlet waterway and at least one first outlet waterway and at least one second outlet waterway, the first outlet waterway is connected to the inlet waterway through an electric-control valve, the second outlet waterway is normally open and connected to the inlet waterway;A power generation mechanism, it is fixed in the fixing unit and generate electric energy by the impact of the water flow in the inlet waterway;A fast energy storage component, it is used for storing electric energy generated by the power generation mechanism;A control unit, it comprises a control circuit and a control module which is used for activating the control circuit;The control circuit, fast energy storage component, electric-control valve and the power generation mechanism are in electric-connection, the electric energy generated by the power generation mechanism is stored by the fast energy storage component after rectification, the control circuit gets the electric energy through the fast energy storage component ...

THE IMPELLER ASSEMBLY FOR HYDROELECTRIC POWER GENERATION DEVICE

This invention aims to provide the composition of inlet so that the strong output may be provided by rotating with the state of high efficiency as the water falling energy and the flow pressure are simultaneously provided to the impeller and to provide impeller assembly for hydroelectric power generation device maximizing the output efficiency by improving the composition of impeller positively. Namely, this invention inserts the impeller in the main body of cylinder shape that the closed inner space is formed by the cover member, the driving shaft shall be supported in the bearing coupled to the cover member, the impeller installed in the inner space shall be driven by forming the inlet and the outlet in the main body in the impeller assembly for a hydroelectric power generation device; the abovementioned inlet, the fluid like the involute curve shall be supplied from the 12 o'clock direction to the 4 o'clock direction of the main body, the outlet is formed from 6 o'clock direction to 8 o'clock direction, the abovementioned impeller forms the plural fluid tanks opened toward the inner surface of the main body, the moment of rotation of the impeller shall be increased by forming the abovementioned fluid tank in the closed pressuring part is formed in the direction of 4 o'clock direction to 6 o'clock direction.

Torque-Thrust Chamber for Horizontal Pump Test Systems

A test skid for a pumping system is configured to evaluate the performance of a pump. The test skid includes a motor and a torque-thrust chamber connected between the motor and the pump. The torque-thrust chamber has a torque meter and a thrust bearing. The thrust bearing is positioned between the torque meter and the motor such that the torque meter is connected directly to the pump through a pump input shaft. In this configuration, the torque meter measures the torque applied directly to the pump without the need to account for losses through an intermediate thrust bearing. 1. A test skid for a pumping system that includes a pump , the test skid comprising:a motor; and a torque meter;', 'a thrust bearing, wherein the thrust bearing is positioned between the torque meter and the motor; and', 'a pump input shaft connected between the torque meter and the pump., 'a torque-thrust chamber connected between the motor and the pump, wherein the torque-thrust chamber comprises2. The test skid of claim 1 , wherein the torque meter is a non-contact torque meter.3. The test skid of claim 2 , wherein the torque meter is a bearingless digital torque meter.4. The test skid of claim 1 , further comprising:a flexible coupling;a drive shaft connected between the flexible coupling and the motor; anda thrust bearing shaft connected between the flexible coupling and the torque meter.5. The test skid of claim 4 , wherein the thrust bearing is connected to the thrust bearing shaft.6. The test skid of claim 4 , further comprising a suction chamber adapter connected between the pump and the torque-thrust chamber.7. The test skid of claim 1 , wherein the torque-thrust chamber further comprises one or more radial bearings.8. A horizontal pumping system comprising:a motor;a pump driven by the motor; and a non-contact torque meter; and', 'a thrust bearing, wherein the thrust bearing is positioned between the torque meter and the motor., 'a torque-thrust chamber connected between the motor and ...

WATER TURBINE, AND CONNECTING STRUCTURE OF TWO MALE SCREW SHAFTS AND CONNECTING STRUCTURE OF TWO SHAFTS RESPECTIVELY USED FOR WATER TURBINE

The present invention relates to a water turbine in which a unit pipe can be joined by an optional number and a rotating shaft integrated with a rotor can be joined by an optional number according to intended use or condition of use, and by which each rotor can be supported stably. A water turbine in which a rotor provided in a water conduit pipe is rotated by a water flow in the water conduit pipe and the rotation of the rotor is utilized as a motive power, wherein pluralities of the unit pipes constituting a part of the water conduit pipe are connected in order by interposing an end plate having a bearing and a water passing part between respective them, wherein pluralities of rotating shafts respectively integrated with the rotor are linearly connected by providing a connecting means between respective them while end portions opposing to each other of a pair of adjacent rotating shafts are brought into contact, wherein each of the rotating shafts is rotatably supported by respective pair of bearings arranged to neighbor each other such that at least one of the rotors is arranged between the respective pair of bearings, and thereby forming a water turbine unit . 1. A water turbine in which a rotor provided in a water conduit pipe is rotated by a water flow in the water conduit pipe and the rotation of the rotor is utilized as a motive power , comprising a water turbine unit in which an end plate having a bearing and a water passing part is fixed to each of both ends of a unit pipe constituting a part of the water conduit pipe , and both end portions of a rotating shaft integrated with the rotor provided in the unit pipe are rotatably supported by respective both bearings , wherein the water turbine unit is possible to be connected to a part of the water conduit pipe in series.2. The water turbine according to claim 1 , wherein pluralities of the unit pipes constituting a part of the water conduit pipe are connected in series by interposing the end plate having the ...

Method for machining a shaft and apparatus made thereby

A method for machining a shaft includes the step of machining a compound radius into the shaft at a junction between a radial surface of the shaft and an axial facing flange portion of the shaft. The compound radius has a curved surface with at least two different radii. The curved surface extends circumferentially around the shaft.

Scroll compressor with wrap having gradually decreasing thickness

A scroll compressor is provided that may include a casing; a drive motor provided at an inner space of the casing; a rotational shaft coupled to a rotor of the drive motor, and rotated together with the rotor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the fixed wrap. In a state in which a center of the fixed scroll and a center of the orbiting scroll are substantially the same, an interval between the fixed wrap and the orbiting wrap gradually increases towards the suction chamber from the discharge chamber.

Wind turbine system for generating electrical power

The apparatus includes a wind turbine system for the collection of wind energy and the conversion thereof through staged-compression into highly compressed gas. The highly compressed gas is routed to a central tank, and then expanded into a plurality of concentric ring tanks, each storing gas at successively lower pressures. The cooling resulting from this expansion is utilized to cool hot compressed gas from an intermediate line of gas compressors, increasing the efficiency of the following compressors. This absorption of heat also improves the efficiency of the gas turbines driving electrical generators. The gas compressor in each wind turbine is located near ground level, and driven by a vertical shaft passing through the wind turbine support tower. One embodiment has conventional radially extending blades, and another embodiment has ducted blades to withstand higher winds. Both ground mounted and deep water adaptions for the wind turbines are disclosed. 1. (canceled)2. (canceled)3. A wind turbine comprising:a. a head portion having at least two propeller blades extending radially from a hub, said at least two propeller blades having respective longitudinal axes and being mounted to said hub for rotation about said axes between a first rotational position where said propeller blades are fully engaged with incoming wind and a second rotational position where said propeller blades are minimally engaged with incoming wind, said hub being mounted for rotation on a front end of said head portion, a gear assembly mounted in said head portion between said front end and a rear end of said head portion, said gear assembly having a first shaft interconnected to said hub, and a second shaft directed vertically and downwardly, a rudder mounted on said rear end of said head portion, feathering and braking means responsive to the incoming wind, for maintaining said propeller blades in said first rotational position when the incoming winds are light and moderate, and for ...

POWER TAKE OFF SYSTEM FOR WAVE ENERGY CONVERTER BUOY

A power-take-off system for use in a wave energy converter buoy employs a meshing nut and screw shaft assembly for motion conversion. That is, the motion of the buoy float is coupled to drive the nut along the screw shaft on which it is mounted. The linear movement of the nut along the shaft causes the shaft to rotate and this rotational motion is then coupled to rotate an electrical generator. 1. A power-take-off system (PTO) for a wave energy conversion buoy (W EC) of the type having a float to extract the wave motion in a body of water , comprising:a screw shaft having a helical groove therein;a nut on said shaft having an internal helical groove conformed to the shaft groove and cooperating mechanically therewith;a driver connected to one of said screw shaft and said nut, said driver being constructed to be coupled to receive the wave motion extracted by the float; anda coupling connected to the other of said screw shaft and said nut, said coupling being constructed to couple rotational motion of said other to an electrical generator;whereby force received by said driver moves said one and causes said other to rotate, the rotational motion being transferred to said coupling and therefrom to a connected generator.2. The PTO of wherein said driver is connected to said nut and force received by said driver moves said nut along said screw shaft claim 1 , causing the shaft to rotate.3. The PTO of further comprising a plurality of ball bearings within the grooves of the nut and screw shaft and trapped therebetween claim 1 , the ball bearings forming a rolling interface therebetween.4. The PTO of claim 2 , further comprising:a chassis in which said screw shaft is mounted for rotational movement;said driver comprising:a carriage mounted in said chassis for linear movement substantially parallel to said screw shaft and secured to said nut; andan input shaft having a first end secured to said carriage and a second end constructed to be coupled to receive the wave motion ...

Lubrication System for a Main Bearing of a Wind Turbine

A lubrication system for a main bearing positioned around a main shaft of a wind turbine includes a seal ring positioned around the shaft adjacent to the bearing, at least one gear adjacent to the seal ring, a mechanical lubricant pump arranged to engage the at least one gear, and at least one lubricant for providing lubrication to the bearing. Thus, as the shaft rotates, the gear(s) drives the lubricant pump such that the pump continuously provides the lubricant to the bearing so long as the shaft is rotating. 1. A lubrication system for a bearing positioned around a shaft , the lubrication system comprising:a seal ring positioned around the shaft adjacent to the bearing;at least one gear arranged with the seal ring;a lubricant pump arranged to engage the at least one gear; and,at least one lubricant for providing lubrication to the bearing,wherein, as the shaft rotates, the at least one gear drives the lubricant pump such that the lubricant pump continuously provides the lubricant to the bearing so long as the shaft is rotating.2. The lubrication system of claim 1 , wherein the at least one gear is a separate component mounted to the seal ring.3. The lubrication system of claim 1 , wherein the at least one gear is formed into the seal ring.4. The lubrication system of claim 1 , wherein the lubricant pump comprises a mechanical pump.5. The lubrication system of claim 4 , wherein the mechanical pump comprises a positive displacement pump.6. The lubrication system of claim 1 , further comprising a collection system arranged with the lubricant pump and the bearing claim 1 , the collection system configured to collect excess lubricant of the lubrication system.7. The lubrication system of claim 6 , wherein the collection system comprises at least one of piping claim 6 , a drain claim 6 , or a sump.8. The lubrication system of claim 1 , wherein the bearing comprises a main bearing of a wind turbine and the shaft comprises a main shaft of the wind turbine.9. The ...

METHOD OF ASSEMBLING A DRIVE TRAIN HAVING IMPROVED STIFFNESS FOR AN ELECTRIC MACHINE

A drive train for an electric machine is provided. The drive train includes a shaft. The shaft has a front end and a rear end and which is supported in a housing via a front bearing and a rear bearing, wherein the front bearing including a front bearing outer ring and a front bearing inner ring, and the rear bearing including a rear bearing outer ring and a rear bearing inner ring). The drive train includes a first cover mounted to the housing and being configured to seal a rear side of the front bearing, wherein the first cover is mounted to the housing by an auxiliary support which connects the first cover to the housing, a second cover mounted to the housing and being configured to seal a front side of the rear bearing, a third cover mounted to the housing and being configured to seal the rear bearing. 1. A method of assembling a drive train for an electric machine , the drive train comprising a shaft having a front end and a rear end and is supported in a housing via a front bearing and a rear bearing , the front bearing comprising a front bearing outer ring and a front bearing inner ring , and the rear bearing comprising a rear bearing outer ring and a rear bearing inner ring , the method comprising the following steps:a) providing the shaft;b) mounting the front bearing to the shaft by temporarily heating the front bearing and shifting the same to a front position at the shaft;c) arranging a first cover and a second cover at the shaft from a rear end of the shaft, the first cover is configured to seal a rear side of the front bearing and the second cover is configured to seal a front side of the rear bearing;d) mounting the rear bearing to the shaft by temporarily heating the rear bearing and shifting the same from the rear end of the shaft to a rear position at the shaft;e) mounting the second cover to the rear bearing outer ring;f) mounting the housing to the shaft by temporarily heating the housing and relatively moving the same over the shaft from the rear ...

ENERGY-GENERATING APPARATUS FOR UTILIZING THE ENERGY OF A FLOWING MEDIUM

The subject of the invention is an energy generating apparatus for utilizing the energy of a flow medium having a support structure (), at least one waving element (), at least two fastening elements (), a drive and control unit (), and an energy recovery and transfer unit (), wherein the waving element () is connected to the fastening elements (), the drive and control unit () is connected to the fastening elements (). It is characterized in that it comprises at least one turbulizer element (), the waving element () between two fastening elements () is described as a regular waveform, determined by a function, and comprises at most one full wave period. The subject of the invention also includes the method for application of the apparatus. 1. An energy-generating apparatus for utilizing the energy of a flow medium , comprising a support structure , at least one waving element , at least two fastening elements , a drive and control unit , and an energy recovery and transfer unit , wherein the waving element is connected to the fastening elements , the drive and control unit is connected to the fastening elements , wherein the waving element comprises at least one turbulizer element , and the waving element between two fastening elements is described as a regular waveform , determined by a function , and comprises at most one full wave period.2. The apparatus according to claim 1 , wherein at least one of the fastening elements comprises a turbulizer element claim 1 , and the shape of the turbulizer element is a cylinder or column.3. The apparatus according to claim 1 , wherein the waving element comprises a material claim 1 , a flexible material claim 1 , or a material constructed of multiple rigid interconnected parts.4. The apparatus according to claim 1 , wherein the drive and control unit comprises at least one of: a plurality of casters and ropes claim 1 , a plurality of straps claim 1 , at least one lever claim 1 , at least one working cylinder claim 1 , at ...

SUPPORT SYSTEM FOR MAIN SHAFT OF WIND TURBINE

A support system supports and immobilizes a main shaft in a nacelle of a wind turbine when a gearbox has been dismounted from the main shaft. The support system has a main shaft fixture situatable above the main shaft for engagement with an upper surface of the main shaft. The main shaft fixture has an arcuate recess to engage with the main shaft from above, but has no structure to support the main shaft from below. The main shaft fixture is adapted to be supported on and secured to longitudinal rails of the nacelle. A jack separate from the main shaft fixture is supportable on a floor of the nacelle beneath the main shaft, and is extendible to engage a bottom surface of the main shaft to support the main shaft from below and to raise the main shaft up and into the arcuate recess of the main shaft fixture. 1. A support system for supporting and immobilizing a main shaft in a nacelle of a wind turbine when a gearbox has been dismounted from the main shaft , the support system comprising:a main shaft fixture situatable above the main shaft for engagement with an upper surface of the main shaft, the main shaft fixture comprising an arcuate recess to engage with the main shaft from above the main shaft but comprising no structure to support the main shaft from below the main shaft, the main shaft fixture adapted to be supported on longitudinal rails of the nacelle and secured to the longitudinal rails from above the longitudinal rails; and,a jack separate from the main shaft fixture and not a part of the main shaft fixture, the jack supportable on a floor of the nacelle beneath the main shaft, the jack extendible to engage a bottom surface of the main shaft to support the main shaft from below the main shaft and to raise the main shaft up and into the arcuate recess of the main shaft fixture.2. The system of claim 1 , wherein the arcuate recess is an inverted U-shaped recess.3. The system of claim 1 , wherein the main shaft fixture comprises support wings extending ...

ANGLE-ADJUSTABLE TURBINE

There is provided a turbine with a turbine body, a support frame, and a generator. The turbine body has a plurality of turbine blades, a shaft defining a rotational axis, and a bottom apex. Each of the turbine blades has a lower edge, and the lower edges taper upward relative to the bottom apex such that the lower edges trace a convex surface as the turbine body rotates about the rotational axis. The support frame is connected to the shaft by an angularly adjustable connection that adjusts the angle of the shaft relative to the support frame. The angularly adjustable connection permits rotation of the shaft about the rotational axis, and the generator is powered by the rotation of the shaft. 1. A turbine comprising:a turbine body, the turbine body comprising a plurality of turbine blades, the turbine body having a shaft defining a rotational axis, and a bottom apex, each of the turbine blades having a lower edge, the lower edges being contained by a cone-shape that slopes upward relative to the bottom apex such that the lower edges trace a convex surface as the turbine body rotates about the rotational axis, the turbine blades being configured to rotate about the rotational axis of the shaft in response to fluid flow along a flow direction, the rotational axis being perpendicular to the flow direction;a support frame connected to the shaft by an angularly adjustable connection that adjusts the angle of the shaft relative to the support frame while maintaining the rotational axis perpendicular to the flow direction, the angularly adjustable connection permitting rotation of the shaft about the rotational axis;an actuator that actuates the angularly adjustable connection; anda generator powered by the rotation of the shaft.2. The turbine of claim 1 , wherein the angularly adjustable connection changes the orientation of the convex surface traced by the lower edges of the turbine blades.3. The turbine of claim 1 , wherein the support frame comprises floats to suspend ...

PROGRESSIVE CAVITY PUMP HOLDBACK APPARATUS AND SYSTEM

A progressive cavity pump system on a well includes a holdback apparatus. The holdback apparatus has a housing and a one-way bearing in the housing. The housing attaches to the drive head on the well. The one-way bearing allows the motor to drive the pump. The one-way bearing prevents reverse rotation, preventing the sucker rod from unwinding and fluid above the pump from draining, when the pump loses power. 1. A holdback apparatus for a polish rod rotatably mounted in a drive head for a progressive cavity pump system having a motor that drives the polish rod , a sucker rod connected to and extending downwardly from the polish rod and a pump driven by the sucker rod , comprising:a holdback housing rigidly attached to said drive head, anda one-way bearing having an outer race inside and rigidly attached to said holdback housing, and a spaced inner race rotatable in said outer race in a first direction and non-rotatable in said outer race in an opposite second direction, said inner race being connected to said polish rod,whereby said one-way bearing prevents said sucker rod from unwinding when said motor loses power.2. The apparatus as set forth in including a holdback shaft that connects to and extends upwardly from said polish rod and an elongated retaining arm that extends radially outwardly from said holdback housing claim 1 , andwherein said inner race is rigidly mounted on said holdback shaft, said holdback housing is located above said drive head and said retaining arm is connected to said drive head opposite said housing.3. The apparatus as set forth in wherein said holdback housing includes an elongated claim 2 , substantially cylindrical claim 2 , hollow body and a flange that projects radially outwardly from said body claim 2 , said body defining an interior cavity with said outer race being sized to press fit into said cavity claim 2 , and said flange connecting said retaining arm to said holdback housing.4. The apparatus as set forth in wherein said ...

DEVICE FOR GENERATING HYDRO-ELECTRIC ENERGY

Device for generating energy making use of the current of a river (), with a self-floating paddlewheel () and an electric generator set () that is coupled to the paddlewheel (), whereby the device () is provided with an immersed housing () with an open bottom () in which the paddlewheel () is rotatably affixed and whereby there is a unit () to control the flow of the river () at the level of the paddlewheel (), whereby the speed of the generator set () is kept constant by controlling the water level () in the housing () by placing its internal space () under pressure and/or by controlling the aforementioned unit (). 121317201413133452793131516411024313179310a. Device for generating hydroelectric energy making use of the current of a river () , estuary or similar , whereby this device comprises a self-floating paddlewheel () that can freely turn in two directions around an axis X-X′ , and comprises at least one electric generator set () whose driveshaft () is coupled to the shaft () of the paddlewheel () in a way to transmit torque , wherein the device () is provided with an entirely or at least partially immersed housing () in the form of a bell () with an open bottom () that is at a height (A) above the bed () of the river () , estuary or similar , whose internal space () is placed under pressure to control the height (B) of the water level () in the bell () , and in which the paddlewheel () is rotatably affixed by means of bearings () or similar with paddles () that protrude below the open bottom () , and that the device () is provided with means () to control the flow of the river () , estuary or similar under the open bottom () of the bell () at the level of the paddlewheel () , whereby the speed of the at least one electric generator set () is kept constant by controlling the height (B) of the water level () in the bell () and/or by controlling the aforementioned means ().21710243139315. Device according to claim 1 , wherein to keep the speed of the at least ...

SEALING DEVICE AND METHOD FOR SEALING IN A FLUID MEDIUM

A seal device for sealing in a liquid medium includes a first seal assembly disposed on a primary side facing the medium and configured to seal a stationary component with respect to a rotatable component, a second seal assembly disposed on a secondary side facing away from the medium and configured to seal the stationary component with respect to the rotatable component, and a sensor connected to a volume located between the first seal assembly and the second seal assembly and configured to detect a change of a moisture level in the volume. The stationary component further includes a bore located axially between a contact surface for the first seal assembly and a contact surface for the second seal assembly, and the volume is connected to a pressure tank by the bore. 1. A seal device for sealing in a liquid medium , comprising:a first seal assembly disposed on a primary side facing the medium and configured to seal a stationary component with respect to a rotatable component;a second seal assembly disposed on a secondary side facing away from the medium and configured to seal the stationary component with respect to the rotatable component; anda sensor connected to a volume located between the first seal assembly and the second seal assembly and configured to detect a change of a moisture level in the volume,wherein the stationary component further includes a bore located axially between a contact surface for the first seal assembly and a contact surface for the second seal assembly, wherein the volume is connected to a pressure tank by the bore.2. The seal device according to claim 1 , wherein the first seal assembly or the second seal assembly comprises a lip seal having an axially extending indentation facing the medium.3. The seal device according to claim 2 , wherein the first seal assembly or the second seal assembly comprises at least one additional lip seal having an axially extending indentation facing away from the medium.4. The seal device according to ...

APPARATUS FOR SEALING ROTATABLE COMPONENTS OF A WIND TURBINE POWERTRAIN

Apparatus comprising a first shaft and a second shaft supported in a substantially concentric relationship so that they are able to rotate relative to one another about a rotational axis (R); wherein one of the first and second shafts passes through a bore defined in the other of the first and second shafts; a seal arrangement between the first and second shafts, said seal arrangement being locked from rotational movement relative to said first shaft; wherein the seal arrangement comprises a first portion that is rotatably mounted on the second shaft by a bearing and a second portion that is configured to seal against a miming surface defined by the second shaft. Advantageously, since the seal arrangement is rotatably mounted on the same shaft against which it forms a seal, the sealing arrangement accommodates for alignment errors between the first and second shafts. 1. Apparatus comprising:a first shaft and a second shaft supported in a substantially concentric relationship so that they are able to rotate relative to one another about a rotational axis; wherein one of the first and second shafts passes through a bore defined in the other of the first and second shafts;a seal arrangement between the first and second shafts, said seal arrangement being locked from rotational movement relative to said first shaft;wherein the seal arrangement comprises a first portion that is rotatably mounted on the second shaft by a bearing and a second portion that is configured to seal against a running surface defined by the second shaft.2. The apparatus of claim 1 , wherein the seal arrangement comprises a radial surface that opposes the first shaft thereby defining an annular gap.3. The apparatus of claim 2 , wherein the seal arrangement includes a flexible annular seal that closes the annular gap.4. The apparatus of claim 3 , wherein the flexible annular seal extends between a surface of the first shaft and a surface of the seal arrangement to close the annular gap.5. The ...

WIND TURBINE WITH A MODULAR DRIVE TRAIN

A wind turbine wherein the drive train section corresponding to the main shaft and the first stage of the gearbox is structured by two separable modules and comprises a connecting device between the main shaft and the planet carrier configured to allow a flexible coupling between them. The first module comprises the main shaft, its housing and two bearings as a supporting mechanism of the main shaft in its housing. The second module comprises the first stage of the gearbox, its housing and a double taper rolling bearing on the side adjacent to the first module as a supporting mechanism of the first stage of the gearbox in its housing. 111. Wind turbine () comprising:{'b': '14', 'a tower ();'}{'b': 15', '12', '13', '23', '42', '47', '12', '21', '27', '23', '24', '21', '42', '23, 'a drive train inside a nacelle () including a rotor hub () supporting the rotor blades (), a gearbox () having a planetary-type first stage () with the planet carrier () connected to the rotor hub () by means of a main shaft () and a generator () connected to the gearbox () by a high-medium speed shaft (), wherein the drive train section corresponding to the main shaft () and the first stage () of the gearbox (){'b': 31', '41', '31', '21', '33', '35', '37', '21', '33', '41', '42', '23', '43', '45', '31', '42', '23', '43, 'a) is structured by two separable modules (, ); the first module () comprising the main shaft (), its housing () and two bearings (, ) as supporting means of the main shaft () in its housing (); the second module () comprising the first stage () of the gearbox (), its housing () and a double taper rolling bearing () on the side adjacent to the first module () as supporting means of the first stage () of the gearbox () in its housing ();'}{'b': 51', '21', '47, 'b) comprises a connecting device () between the main shaft () and the planet carrier () configured to allow a flexible coupling between them.'}2114765715555676765. Wind turbine () according to claim 1 , wherein the ...

TURBOMACHINE AND TURBOMACHINE MANUFACTURING METHOD

A turbomachine includes a housing, an impeller, a shaft, and first and second radial foil bearings that rotationally support the shaft. The motor includes a stator and a rotor. The shaft includes a first inner ring and a second inner ring. The first inner ring is formed integrally with the shaft as a part of the shaft. The second inner ring is formed separately from the shaft. The first inner ring includes a first opposed end portion that is opposed to a first end portion of the rotor. The second inner ring includes a second opposed end portion that is opposed to a second end portion of the rotor. The second opposed end portion is fixed to the shaft such that the second opposed end portion and the first opposed end portion hold the rotor in between to apply preload in an axial direction to the rotor. 1. A turbomachine comprising:a housing that includes an impeller chamber and a motor chamber accommodating a motor;an impeller accommodated in the impeller chamber, the impeller being configured to pressure-feed fluid by rotation of the motor;a shaft that extends in an axial direction to couple the impeller and the motor to each other; andfirst and second radial foil bearings that rotationally support the shaft in the housing, wherein a stator fixed to the housing, and', 'a rotor that rotates radially inside the stator,, 'the motor includes'} a first end portion in the axial direction,', 'a second end portion in the axial direction, and', 'a tubular outer circumferential portion that extends from the first end portion to the second end portion,, 'the rotor includes'} a first inner ring that constitutes a part of the first radial foil bearing, the first inner ring being formed integrally with the shaft as a part of the shaft, and', 'a second inner ring that constitutes a part of the second radial foil bearing, the second inner ring being formed separately from the shaft,, 'the shaft includes'}the first inner ring includes a first opposed end portion that is opposed to ...

VERTICALLY-ORIENTED WIND TURBINE AND IMPROVED WIND SHIELD

A vertical-axis wind turbine (VAWT) comprising a plurality of convex blades axially-rotating about a vertical axis. A wind shield rotating axially around the blades shields the blades facing convexly into the wind on the windward side of the turbine, the shield adapted to redirect wind moving against the shield to a high pressure zone on the concave side of the turbine blades. The radial distance between blades may vary along the chord length of the shield. 1. A vertical-axis wind turbine comprising:a plurality of blades rotating axially about a substantially vertical shaft; an arcuate inner surface spaced away from the blades;', 'an arcuate scoop arching outwardly from the arcuate inner surface, the arcuate scoop angling forward of a forward edge of the arcuate inner surface, the arcuate inner surface and the arcuate scoop forming a wind channel terminating at one or more ejection ports positioned behind a concave face of the blades, the ejection ports adapted to redirect airflow forced into the open scoop to the concave face of the blades;, 'an arcuate wind shield adapted to shield convexly-facing blades on a windward surface of the turbine against contact with oncoming airflow, the wind shield comprisingwherein the wind shield affixes to the vertical shaft such that the wind shield may rotate axially about the shaft only in one of a clockwise or counterclockwise direction about the vertical shaft.2. The wind turbine of claim 1 , further comprising an arcuate redirection shield positioned laterally to the blades claim 1 , the redirection shield adapted to redirect airflow around the blades.3. The wind turbine of claim 2 , where the redirection shield is affixed to the shield using one or more arcuate beams.4. The wind turbine of claim 2 , where the redirection shield is hingedly affixed to the shaft using one or more beams.5. The wind turbine of claim 4 , where the redirection shield is hingedly affixed to the shaft using one or more beams.6. The wind turbine of ...

TURBINE ASSEMBLY

An apparatus for generating electricity from water flow held behind a barrier includes a convergent section connected to a first end of a mixing tube such that a venturi is defined between the end of the convergent section and the mixing tube; a diffuser section connected to a second end of the mixing tube, the diffuser section configured such that the pressure at the exit of the diffuser section is greater than the pressure at the venturi; and a turbine tube comprising a blade assembly having a plurality of blades. The turbine tube is supported in the convergent section and is rotatably mounted, the blades being attached to the inner surface of turbine tube such that water flow past the blades drives the rotation of the turbine tube. 1. An apparatus for generating electricity from water flow comprising:a convergent section connected to a first end of a mixing tube such that a venturi is defined between the end of the convergent section and the mixing tube;a diffuser section connected to a second end of the mixing tube, the diffuser section configured such in use such that the pressure at the exit of the diffuser section is greater than the pressure at the venturi;a turbine tube comprising a blade assembly having a plurality of blades, the turbine tube supported in the convergent section such that an annulus is defined between the turbine tube and the convergent section to form a first flow passage, and the turbine tube defining a second flow passage, wherein the turbine tube is rotatably mounted in the convergent section and the blades are attached to the inner surface of the turbine tube such that in use water flow past the blades drives the rotation of the turbine tube.2. The apparatus according to wherein the turbine tube is rotatably mounted in a support boss claim 1 , the support boss mounted in the convergent section by support vanes.3. The apparatus according to wherein the support boss comprises a support tube of shorter length than the turbine tube.4. The ...

ROTOR BLADE HUB FOR A WIND TURBINE, AND WIND TURBINE HAVING SAME

Provided is a rotor blade hub for a wind turbine. The rotor blade hub includes a connecting portion for torque-transmitting coupling of the rotor blade hub to a main shaft of the wind turbine. The rotor blade hub has a single-stage transmission which is non-rotatably mounted to the rotor blade hub at the drive input side and has the connecting portion at the drive output side. 1. A wind turbine , comprising:a main shaft; a generator rotor coupled to the main shaft; and', 'a generator stator; and, 'a generator for generating electric power including a connecting portion for torque-transmitting coupling of the rotor blade hub to the main shaft; and', 'a single-stage transmission that is non-rotatably mounted to the rotor blade hub at a drive input side and has a connecting portion at a drive output side, wherein the single-stage transmission is in a form of an attachment transmission and is mounted at a side of the rotor blade hub that is remote from a machine carrier, wherein the rotor blade hub is arranged on a first side of the machine carrier, the generator is arranged on a second side of the machine carrier opposite to the first side, and the main shaft is passed through the machine carrier and is non-rotatably coupled to the generator rotor., 'a rotor blade hub, coupled to the main shaft, including2. The wind turbine as claimed in claim 1 , wherein the single-stage transmission is a planetary transmission having a sun gear claim 1 , a planetary carrier having a plurality of planetary gears claim 1 , and a ring gear claim 1 , wherein the plurality of planetary gears engage the sun gear and the ring gear.3. The wind turbine as claimed in claim 2 , wherein the sun gear is non-rotatably coupled to the connecting portion of the single-stage transmission at the drive output side.4. The wind turbine as claimed in claim 2 , wherein the planetary carrier is non-rotatably coupled to the rotor blade hub at the drive input side.5. The wind turbine as set forth in claim 3 , ...

VORTEX GENERATOR, INSTALLATION METHOD FOR THE SAME, WIND TURBINE BLADE, AND WIND TURBINE POWER GENERATING APPARATUS

A vortex generator for a wind turbine blade includes a plurality of main fins disposed on a surface of the wind turbine blade; and at least one first sub fin having a fin chord length and a fin height which are smaller than those of each of the main fins, and disposed on the surface of the wind turbine blade along a first virtual line extending from a first end portion of a main fin row at a side of a blade tip or a blade root of the wind turbine blade. An expression d≤dis satisfied, provided that d is a distance between the main fin row and the first sub fin disposed next to the first end portion of the main fin row, and dis a maximum distance between an adjacent pair of the main fins in the main fin row. 1. A vortex generator for a wind turbine blade , comprising:a plurality of main fins disposed on a surface of the wind turbine blade; andat least one first sub fin having a fin chord length and a fin height which are smaller than those of each of the main fins, the at least one first sub fin being disposed on the surface of the wind turbine blade along a first virtual line extending from a first end portion of a main fin row at a side of a blade tip or a blade root of the wind turbine blade,{'sub': max', 'max, 'wherein d satisfies an expression d≤dprovided that d is a distance between the main fin row and the first sub fin disposed next to the first end portion of the main fin row of the at least one first sub fin, and dis a maximum distance between an adjacent pair of the main fins in the main fin row.'}2. The vortex generator for a wind turbine blade according to claim 1 ,wherein a fin chord length direction of the first sub fin which is farthest from the main fin row of the at least one first sub fin is inclined from the first virtual line so as to extend away from the main fin row toward a leading edge of the wind turbine blade.3. The vortex generator for a wind turbine blade according to claim 1 ,wherein the at least one first sub fin includes a plurality of ...

RESIDENTIAL TURBINE

A vertical axis wind turbine, comprising, a plurality of blades, wherein the blades are an aerofoil, a rotor shaft, the rotor shaft further comprises a rotary section and a stationary section. The plurality of magnet rings further comprises a first magnet ring. The first magnet ring is attached to the rotary section of the rotor shaft and the second magnet ring is attached to the stationary section of the rotor shaft, wherein the first and second magnet rings are cylindrical magnets and comprises a hole in middle of the rings, the first magnet ring is attached to the rotary section of the rotor shaft further consists a particular charge and the second magnet ring is attached to the stationary section of the rotor shaft. 1. A vertical axis wind turbine , comprising:a. plurality of blades;b. a rotor shaft, wherein the rotor shaft further comprises a stationary section and a rotating section;c. a blade bearing disk, which connects the plurality of blades to the rotor; andd. plurality of magnet rings, the magnet rings are placed between the stationary section and the rotator section of the rotor shaft.2. The vertical axis wind turbine of claim 1 , wherein the plurality of magnet rings further comprises a first magnet ring and a second magnet ring claim 1 , the first magnet ring is attached to the rotary section of the rotor shaft and the second magnet ring is attached to the stationary section of the rotor shaft.3. The vertical axis wind turbine of claim wherein the first and second magnet rings are cylindrical magnets and comprises a hole in middle of the rings.4. The vertical axis wind turbine of claim 1 , wherein the first magnet ring is attached to the rotary section of the rotor shaft further consists a particular charge and the second magnet ring is attached to the stationary section of the rotor shaft consists the particular charge.5. The vertical axis wind turbine of claim 1 , wherein the particular charge is a south pole.6. The vertical axis wind turbine of ...

WIND-DRIVEN RECHARGER FOR VEHICLE BATTERY

In one illustrative embodiment, a wind-driven charging system includes a wind-driven rotation device coupled to a rotatable shaft, and a plurality of electric generators disposed at different longitudinal locations along the rotatable shaft and each of the plurality of electric generators are rotationally driven simultaneously by the rotatable shaft. By having the electric generators disposed at different longitudinal locations, more electric generators may be simultaneously driven by a common shaft. In some instances, a controller may be configured to enable more of the electric generators to provide electrical current to recharge a battery when the speed of rotation of the rotatable shaft increases, and may disable more of the plurality of electric generators to not provide electrical current when the speed of rotation of the rotatable shaft decreases. 1. A wind-driven charging system , comprising:a wind-driven rotation device having a rotor;a primary shaft extending along a rotation axis;a coupling for operatively coupling the rotor of the wind-driven rotation device to the primary shaft;a first drive shaft operatively coupled to the primary shaft and rotated by power from the primary shaft;a first plurality of electric generators each disposed at a different longitudinal location along the first drive shaft, each of the first plurality of electric generators rotationally driven simultaneously by the first drive shaft;a second drive shaft operatively coupled to the primary shaft and rotated by power from the primary shaft; anda second plurality of electric generators each disposed at a different longitudinal location along the second drive shaft, each of the second plurality of electric generators rotationally driven simultaneously by the second drive shaft.2. The wind-driven charging system of claim 1 , wherein:the first drive shaft includes one or more serrated portions; andeach of the first plurality of electric generators include a wheel that is configured to ...

VERTICAL SHAFT WIND TURBINE, ITS VERTICALLY LONG BLADE AND WIND POWER GENERATOR

A vertical shaft wind turbine that is superior in a rotational startability, even at a low wind speed, and is suited to a wind power generator that has high rotational torque. Each blade is an upper-and-lower-ends fixed type vertically long blade which is suitable for use as a wind turbine or a water turbine. The string length and thickness of an upper-and-lower-ends fixed type vertically long blade () that is fixed upper and lower ends to a vertical main shaft () gradually decrease from a main part () thereof to tips of the upper and lower inwardly curved inclined parts (B, B), and a cross section of the main part (A) is a lift type. A thickness of the cross-sectional shape is continuously and gradually thins from the main part () to the tips of the inwardly curved inclined parts (B, B). 1. A vertical shaft wind turbine , comprising:a vertically long blade, anda vertical main shaft,wherein the vertically long blade has a substantially vertical main part and inwardly curved inclined parts extending linearly from a respective top and bottom of the substantially vertical main part in a direction of the vertical main shaft,the vertical main shaft has mounting members fixed to the vertical main shaft, andthe vertically long blade is an upper-and-lower-ends fixed type vertically long blade of which tip parts of the inwardly curved inclined parts are respectively fixed to the mounting members,a string length and a thickness of the vertically long blade gradually reduce from the substantially vertical main part to tips of the upper and lower inwardly curved inclined parts,a cross section of a string direction in the substantially vertical main part is a lift type,a thickness of the cross-sectional shape is continuously and gradually thins from the substantially vertical main part to the tips of the upper and lower inwardly curved inclined parts, anda string length of the substantially vertical main part is in a range of 45% to 55% of a radius of rotation of the ...

System and Method for Determining an Estimated Position of a Wind Turbine Rotor Shaft

The present disclosure is directed to a method for determining an estimated rotor shaft position of a rotor shaft of a wind turbine. The method includes generating, with a rotor shaft position sensor, a measured rotor shaft position signal associated with a measured rotor shaft position of the rotor shaft. The method also includes generating, with a plurality of accelerometers positioned in an axisymmetric arrangement, a plurality of rotor hub acceleration signals associated with a plurality of rotor hub accelerations of a rotor hub coupled to the rotor shaft. The method further includes determining, with a controller, a phase adjustment based on one of the plurality of rotor hub acceleration signals or a predetermined correction value. Furthermore, the method includes adjusting, with the controller, the measured rotor shaft position by the phase adjustment to determine the estimated rotor shaft position of the rotor. 1. A method for determining an estimated rotor shaft position of a rotor shaft of a wind turbine , the method comprising:generating, with a rotor shaft position sensor, a measured rotor shaft position signal associated with a measured rotor shaft position of the rotor shaft;generating, with a plurality of accelerometers positioned in an axisymmetric arrangement, a plurality of rotor hub acceleration signals associated with a plurality of rotor hub accelerations of a rotor hub coupled to the rotor shaft;determining, with a controller, a phase adjustment based on one of the plurality of rotor hub acceleration signals or a predetermined correction value; andadjusting, with the controller, the measured rotor shaft position by the phase adjustment to determine the estimated rotor shaft position of the rotor.2. The method of claim 1 , further comprising:determining, with the controller, the phase adjustment based on the plurality of rotor hub acceleration signals when the controller receives the plurality of rotor hub acceleration signals from the plurality ...

INNOVATIVE WIND TURBINE CONSTRUCTION FOR 100% ENERGY INDEPENDENCE OR EVEN BEING ENERGY POSITIVE

Systems, methods, and apparatuses are provided for generating clean energy. A Savonius vertical-axis wind turbine, including a shaft configured to rotate about a first axis, aerofoil blades transversely mounted with respect to the first axis, on the shaft, transversely extending outwards from the shaft to a first distance from the shaft, a generator coupled to the shaft, the generator configured to generate electricity from rotational energy of the shaft when the shaft rotates about the axis; and a first curved wind shield having a semi-circular shape defined by a curvature, each point of the curvature is a fixed second transverse distance from the shaft, the first curved wind shield positioned at the fixed second transverse distance from the rotating shaft, and the curved wind shield is rotatable about the rotating shaft, at the fixed second distance. In some embodiments, the wind shields increase productive wind circulation to the turbine blades. 1. A Savonius vertical-axis wind turbine , comprising:a shaft configured to rotate about a first axis;a plurality of aerofoil blades transversely mounted with respect to the first axis, on the shaft, each respective aerofoil blade in the plurality of aerofoil blades transversely extending outwards from the shaft to a first distance from the shaft;a generator coupled to the shaft, the generator configured to generate electricity from rotational energy of the shaft when the shaft rotates about the axis; and each point of the first curvature is a fixed second transverse distance from the shaft,', 'the fixed second transverse distance is greater than the first distance,', 'the first curved wind shield is transversely positioned at the fixed second transverse distance away from the rotating shaft, and', 'the first curved wind shield is rotatable about the rotating shaft, at the fixed second transverse distance, along the first curvature., 'a first curved wind shield comprising a semi-circular shape defined by a first curvature ...

HIGH TORQUE WIND TURBINE BLADE, TURBINE, AND ASSOCIATED SYSTEMS AND METHODS

A blade for a wind turbine can include an elongated and curved sheet having a curved root, a curved tip, a leading edge, and a trailing edge. The root and the tip can be rotated relative to each other such that the blade is twisted along its length. The root can include an edge having curved projections, the curved projections being distributed along a curvature of the root. A wind turbine can include a mounting element and a plurality of turbine blades. Each turbine blade can be attached to the mounting element closer to the trailing edge than to the leading edge such that an intersection of the leading edge and the root projects upstream from the wind turbine. A wind turbine generator assembly for converting wind into electrical energy can include a wind turbine and a generator. In addition, a support structure can support the wind turbine and generator. 1. A kit of parts for a wind turbine generator assembly , the kit comprising:one or more wind turbine blades;a mounting element configured to support the wind turbine blades; anda generator configured to be connected to the mounting element to convert movement of the wind turbine blades to electrical energy; wherein a root, the root comprising a root edge configured to face a rotational axis of the mounting element,', 'a tip positioned opposite the root,', 'a leading edge spanning between the root and the tip along a length of the blade, and', 'a trailing edge positioned opposite the leading edge and spanning between the root and the tip along the length of the blade;', 'wherein the leading edge is longer than the root edge and the trailing edge is longer than the root edge, and', 'wherein the root edge connects the leading edge to the trailing edge, and the root edge comprises a plurality of projections distributed along the root edge between the leading edge and the trailing edge., 'at least one of the wind turbine blades comprises'}2. The kit of wherein the at least one of the wind turbine blades has a concave ...

HIGH TORQUE WIND TURBINE BLADE, TURBINE, AND ASSOCIATED SYSTEMS AND METHODS

A blade for a wind turbine can include an elongated and curved sheet having a root, a tip positioned opposite the root, a leading edge spanning between the root and the tip along a length of the blade, and a trailing edge spanning between the root and the tip opposite the leading edge. The blade can include a generally concave surface formed by curvature of the blade about a longitudinal axis. The blade can further include one or more air dams, which can be in the form of strip elements oriented transverse to the longitudinal axis and extending away from the concave surface. The air dams improve torque and efficiency of the blade. In some embodiments, an edge of the root can include a plurality of curved projections distributed thereon. A wind turbine system can include a generator and a wind turbine having a mounting element to support turbine blades. 1. A wind turbine system comprising a mounting element and a turbine blade , the turbine blade comprising:an elongated and curved sheet havinga first edge,a second edge positioned opposite the first edge,a generally concave surface between the first edge and the second edge, the concave surface being oriented to face a generally upstream direction, andone or more strip elements spanning at least a portion of a distance between the first edge and the second edge and extending upstream and away from the concave surface.2. The wind turbine system of wherein the turbine blade comprises a third edge connecting the first edge to the second edge and a fourth edge positioned opposite the third edge claim 1 , and wherein at least one of the strip elements is positioned at a distance from the third edge and the fourth edge.3. The wind turbine system of wherein the one or more strip elements comprises two or more strip elements.4. The wind turbine system of wherein the turbine blade is a first turbine blade and the wind turbine system further comprises a plurality of second turbine blades claim 1 , wherein each turbine blade ...

Vertical Tilting Blade Turbine Wind Mill

The Vertical Tilting Blade Turbine Windmill device is for capturing kinetic energy from the wind and is comprised of a vertical shaft having a central hub connectively attached, the central hub having a plurality of wind capture arms comprising a rotating wind capture blade having a capture surface and a slicing edge that are rotated by a rotating gear and drive gear combination connectively attached to said wind capture blades enabling a rotation of said wind capture blades wherein the wind capture blades are rotated between a blade-mode to capture the wind and a knife-mode to pass with less drag resistance through the air/wind thereby enabling an increase in the ability to capture more of the energy available in an on-coming wind stream. 1. A vertically oriented variable tilting blade turbine windmill device for capturing kinetic energy from a wind comprisinga shaft having a first end and a second end wherein said second end is attached to rotate a drive shaft, an inner blade rod having a base end connectively attached to said shaft proximal to said central hub,', 'an outer blade sleeve enclosing a majority of the length of said inner blade rod having a rotating gear connectively attached to said wind capture blade, and', 'a drive gear connectively attached to said shaft at a right angle enabling a rotation of said wind capture blade., 'a wind capture blade having a capture surface and a slicing edge comprising'}, 'a central hub connectively attached to said first end having a plurality of wind capture arms comprising'}2. The device of wherein said drive gear is connectively attached to said central hub at a right angle enabling a rotation of said outer blade sleeve.3. The device of wherein said wind capture blades have a push orientation positioned wherein said capture surface is positioned facing an on-coming wind and are rotated by said wind through a rotation about said shaft of between 120° and 240° and are then rotated 90° to present said slicing edge in the ...

SHAFT-BEARING SUBASSEMBLY FOR A WIND TURBINE TRANSMISSION

A shaft-bearing subassembly () which includes at least one shaft () mounted by way of at least first and second roller bearings (). The first and second roller bearings () are mounted on the at least one shaft () with an intermediate space between them. The first roller bearing () is fixed axially and the second roller bearing () is secured by way of a retaining element (). The retaining element () is on the side of the second roller bearing () farthest away from the first roller bearing (), and has a first contact surface () which limits the movement of an inner race () of the second roller bearing () in at least one direction, and a second contact surface () which is in contact with an abutment () on the shaft (). 112-. (canceled)131010. A shaft-bearing subassembly () for a wind turbine transmission , the shaft-bearing subassembly () comprising:{'b': '11', 'at least one shaft (),'}{'b': 11', '13', '14, 'the at least one shaft () being mounted by at least a first roller bearing () and a second roller bearing (),'}{'b': 13', '14', '16', '16', '14', '13, 'the first roller bearing () being axially fixed and the second roller bearing () being secured by a retaining element (), and the retaining element () being located on a side of the second roller bearing () facing away from the first roller bearing (),'}{'b': 16', '17', '18', '14, 'the retaining element () having a first contact surface () against which an inner race () of the second roller bearing () being supported, and'}{'b': 19', '20', '11, 'a second contact surface () being connected with an abutment () on the shaft ().'}1410162324. The shaft-bearing subassembly () according to claim 13 , wherein the retaining element () comprises a spacer () and a fixing element ().1510231424. The shaft-bearing subassembly () according to claim 14 , wherein the spacer () is positioned between the second roller bearing () and the fixing element ().16102324. The shaft-bearing subassembly () according to claim 14 , wherein the ...

ADJUSTABLE DUAL ROTOR WIND TURBINE

A dual rotor axis wind turbine that converts renewable energy into electrical energy. The dual rotor wind turbine addresses the counter productivity problem found in dual rotors wind turbines, which occurs due to adverse effects to the downwind rotor due to lying in the wake of the upwind rotor. The dual rotors lie on an axis with a relative angular displacement between the blades of such rotors, wherein the relative angular displacement is adjustable in order for the downwind rotor to avoid the counterproductive wake of the first rotor. 1. An adjustable dual rotor wind turbine comprising:a first rotor with a first set of blades;a second rotor with a second set of blades;a first shaft coupled to the first rotor;a second shaft coupled to the second rotor; anda mechanism, coupled to the first and second shafts, configured to adjust a relative angular displacement between the first and second rotors.2. The adjustable dual rotor wind turbine of claim 1 , wherein said mechanism configured to adjust the relative angular displacement between the first and second rotors comprises at least. one clutch disc coupled to the first shaft claim 1 , and a flywheel coupled to the second shaft.3. The adjustable dual rotor wind turbine of claim 2 , further comprising an actuation mechanism configured to physically engage and disengage the clutch disc and the flywheel from each other claim 2 , wherein the first and second rotors are free to rotate relative to each other when the at least one clutch disc and the flywheel are disengaged claim 2 , and wherein rotations of the first and second rotors are fixed relative to each other when the at least one clutch disc and the flywheel are engaged.4. The adjustable dual rotor wind turbine of claim 1 , wherein said mechanism is configured to adjust the relative angular displacement between the first and second rotors as a function of a measured output power generated as a result of a combined rotation of the first and second rotors.5. The ...

WIND POWER GENERATOR

A wind power generator is provided with a drive unit, a clutch hydraulic source, and a clutch control portion. The drive unit has a hydraulic clutch mechanism configured to perform switching between transmission and non-transmission of rotary power from an output shaft to a pinion. The clutch hydraulic source supplies a hydraulic pressure to the clutch mechanism. The clutch control portion controls a hydraulic pressure supplied from the clutch hydraulic source to the clutch mechanism. 1. A wind power generator , comprising:a ring gear;at least one drive unit for rotating a nacelle or a blade via the ring gear;a clutch hydraulic source; anda clutch control portion,wherein a motor having a power shaft;', 'an input gear configured to be rotated by power transmitted from the power shaft;', 'a speed reduction portion having an output shaft configured to be rotated by power inputted via the input gear;', 'a pinion engaged with the ring gear and configured to be rotated by rotary power transmitted from the output shaft; and', 'a hydraulic clutch mechanism configured to perform switching between transmission and non-transmission of rotary power from the output shaft to the pinion,, 'the at least one drive unit includesthe clutch hydraulic source is configured to supply a hydraulic pressure to the clutch mechanism, andthe clutch control portion is configured to control a hydraulic pressure supplied from the clutch hydraulic source to the clutch mechanism,2. The wind power generator according to claim 1 , whereinthe at least one drive unit comprises a plurality of drive units, andthe clutch hydraulic source supplies a hydraulic pressure to the clutch mechanism of each of the plurality of drive units.3. The wind power generator according to claim 1 , further comprising:a gear inhibition portion for inhibiting rotation of the nacelle or the blade via the ring gear, the gear inhibition portion being configured to use a hydraulic pressure supplied from the clutch hydraulic source ...

DEVICE FOR GENERATING ENERGY ON THE BASIS OF WAVE MOTION

A device () for generating energy on the basis of wave motion comprises a rotatably arranged basic body (); an elongated, rod-shaped body () which is connected to the basic body (), and which has buoyancy with respect to sea water; an arm () which extends between the basic body () and the rod-shaped body () and interconnects these two bodies (); and a main shaft () which is connected to the basic body () for the purpose of being driven by the basic body (). The rod-shaped body () is destined to be moved in and out of the water under the influence of wave motion, and of a rotary movement of the basic body (), which performs a flywheel function during operation of the device (). Due to this, the said rotary movement can be maintained. 11. Device () for generating energy on the basis of wave motion , comprising:{'b': '10', 'a rotatably arranged basic body ();'}{'b': 20', '10', '10, 'an elongated, rod-shaped body () which is connected to the basic body (), which has buoyancy with respect to sea water, and which is destined to be moved in and out of the water under the influence of wave motion, and of a rotary movement of the basic body ();'}{'b': 30', '10', '20', '10', '20, 'an arm () which extends between the basic body () and the rod-shaped body (), and which connects these two bodies (, ) with each other; and'}{'b': 40', '10', '10, 'a main shaft () which is connected to the basic body () in order to be driven by the basic body ().'}21201013101310. Device () according to claim 1 , wherein the rod-shaped body () extends at a position which claim 1 , as projected on the basic body () in the direction of a rotation axis () of the basic body () claim 1 , is eccentric with respect to the rotation axis () of the basic body ().3130101310302010. Device () according to or claim 1 , wherein the arm () is connected to the basic body () at a position which is eccentric with respect to a rotation axis () of the basic body () claim 1 , wherein the arm () is connected to the rod- ...

The engine operated by the buoyancy of water

The invention relates to engine operated by the buoyancy of water, this engine is made up of water tank(), the first device cluster () includes a shaft () and two gears (a, b), at the teeth () there is a one-way air-supply valve (), the second device cluster () includes a shaft () and two gears (). There is a difference that the third device clusters () includes two flanges (), a rectangular box () functioned to change the volume while coordinating activities with the structure of shaped rails () and (), multiple third device clusters () are connected together by latches () forming a closed circle, the flanges () of the closed circle are inserted fit the teeth () of the gears () of the first device cluster () and mounted to fit the teeth () of the gears () of the second device cluster (). 11610012224272326222320034430099101718300159924221002444200ababababababab. The engine operated by the buoyancy of water, this engine is made up of water tank (), the first device cluster () includes a shaft () and two gears (), (), at the teeth () with gasket (), one-way air supply valve (), the shaft's center hole () connected the hollow chamber of gears (, ) to the one-way air supply valve (), the second device cluster () includes a shaft () and two gears (, ). There is a difference that the third device clusters () includes two flanges (, ), a rectangular box () functioned to change the volume .while coordinating activities with the structure of shaped rails () and (), multiple third device clusters () are connected together by latches () forming a closed circle, the flanges (, ) of the closed circle are inserted fit the teeth () of the gears (, ) of the first device cluster () and mounted to fit the teeth () of the gears (, ) of the second device cluster (). The invention relates to a specific engine that is hereunder the engine run by the buoyancy (Archimedes force) of water.Given the hydropower plants currently operated by power flowing water to generate electricity. But ...

Main shaft fixture

A main shaft fixture for fixing a main shaft on a wind turbine during installation and repair work on heavy parts of the wind turbine nacelle, in the case where the fixture is formed of several sections for mounting on stable structural parts in the nacelle, including the nacelle's bottom frame. The main shaft fixture has adjustable pressure mandrels with tap shoes, which cause the fixture to be usable regardless of the turbine main shaft geometry, such that it can be mounted without fixing the rotor. The main shaft fixture also has facilities for mounting of a lightweight crane and a self-hoisting crane with a ground-based winch, respectively, as well as a rotor lock which, in combination with actuators of the main shaft fixture, enables the main shaft and the main shaft bearing to be sufficiently displaced vertically from its bearing in the nacelle to service or replace the bearing.

Scroll compressor

A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency.

SYSTEM AND METHOD FOR REMOVING OR INSTALLING A MAIN SHAFT OF A WIND TURBINE WITH RIGGING

A method and system are provided for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate. The method and system use rigging and specialized tooling and procedures to perform the method in the field with the machine head remaining atop the tower or removed from the tower. 1. A method for removing an installed main shaft and attached main bearing assembly of a wind turbine from a bedplate in the field , wherein a rotor has been removed from an upwind end of the main shaft , a downwind end of the main shaft has been disconnected from a gearbox , and the gearbox has been removed from the bedplate , the method comprising:connecting a rigging system to the upwind end of the main shaft, the rigging system suspended from a crane;pushing the downwind end of the main shaft partway through the bedplate, wherein the main shaft at the downwind end is supported by a bearing unit fixed in the bedplate and the main shaft at the upwind end is supported by the rigging system;pushing the main shaft through the bedplate until a location on the main shaft corresponding to a center of gravity of the main shaft and main bearing assembly are free of an upwind end of the bedplate;attaching a leveling leg of the rigging system to the main shaft at a location such that the center of gravity is located between the leveling leg and the rigging at the upwind end of the main shaft;with the crane, supporting the main shaft to unload the bearing unit and slide the main shaft until the downwind end is free of the bearing unit;with the crane fully supporting the main shaft, horizontally sliding the main shaft out from the bedplate.2. The method of claim 1 , wherein the leveling leg of the rigging system is adjustable in length claim 1 , the method comprising adjusting the length of the leveling leg to obtain a horizontal and balanced orientation of the main shaft as it is slid out from the bedplate.3. The method of claim 1 , wherein the downwind ...

SYSTEM AND METHOD FOR REMOVING OR INSTALLING A MAIN SHAFT OF A WIND TURBINE WITH MAIN SHAFT SUPPORT ELEMENTS

A method and system for removing or installing a main shaft and attached main bearing assembly of a wind turbine from a bedplate form an extension onto a downwind end of the main shaft with one or more support elements to support the mains shaft on a bearing unit as it is pulled or pushed into the bedplate. 1. A method for removing an installed main shaft and attached main bearing assembly of a wind turbine from a bedplate in the field , wherein a rotor has been removed from an upwind end of the main shaft , a downwind end of the main shaft has been disconnected from a gearbox , and the gearbox has been removed from the bedplate , the method comprising:forming an extension onto a downwind end of the main shaft;supporting the upwind end of the main shaft with a rigging system;pushing the downwind end of the main shaft partway through the bedplate, wherein the main shaft at the downwind end is supported by the extension on a bearing unit fixed in the bedplate and the main shaft at the upwind end is supported by the rigging system;with the crane, supporting the main shaft to unload the bearing unit and slide the main shaft until the downwind end is free of the bearing unit;with the crane fully supporting the main shaft, horizontally sliding the main shaft out from the bedplate.2. The method of claim 1 , wherein the extension is formed by fitting one or more support elements onto the main shaft at the downwind end of the main shaft.3. The method of claim 2 , wherein the one or more support elements are fitted onto a reduced diameter section of the main shaft adjacent the downwind end of the main shaft.4. The method of claim 3 , wherein the one or more support elements comprise at least one full or partial cylindrical ring member slid or fitted onto the reduced diameter section of the main shaft.5. The method of claim 4 , wherein a plurality of the ring members are slid or fitted onto the reduced diameter section of the main shaft.6. The method of wherein the ring member ...

CLAMPING APPARATUS FOR SECURING A MAIN BEARING OF A WIND TURBINE DURING AN INSTALLATION AND/OR REPAIR PROCEDURE

The present disclosure is directed to a clamping apparatus for securing a main bearing of a wind turbine. The clamping apparatus includes a clamp member configured for securement to a seal ring arranged with the main bearing, at least one clamping fastener configured through the clamp member, and at least one jacking fastener configured through the clamp member. Thus, the clamping fastener is configured to tighten the clamp member around the seal ring, whereas the jacking fastener is configured to push against the main bearing when tightened so as to maintain the main bearing in place during and installation and/or repair procedure. 1. A clamping apparatus for securing a main bearing of a wind turbine , the clamping apparatus comprising:a clamp member configured for securement to a seal ring arranged with the main bearing;at least one clamping fastener configured through the clamp member, the clamping fastener configured to tighten the clamp member around the seal ring; and,at least one jacking fastener configured through the clamp member, the jacking fastener configured to push against the main bearing when tightened so as to maintain the main bearing in place during an installation or repair procedure.2. The clamping apparatus of claim 1 , wherein the clamp member comprises at least one upwind plate member and at least one downwind plate member claim 1 , the at least one upwind plate member comprising a lip that receives a lip of the seal ring on an upwind side thereof claim 1 , the downwind plate member configured to engage a downwind side of the seal ring when tightened by the clamping fastener.3. The clamping apparatus of claim 2 , wherein the clamp member is secured to the seal ring after a cover of the main bearing is separated and slid away therefrom.4. The clamping apparatus of claim 3 , wherein the at least one upwind plate member further comprises an outer plate and one or more inner plates arranged in a stacked configuration claim 3 , the one or more ...

System and method for reducing the transport width of a gearbox for a wind turbine

The present disclosure is directed to a gearbox assembly for a wind turbine. The gearbox assembly has a maximal installed width and a maximal transport width. The maximal installed width is greater than the maximal transport width. The gearbox assembly includes at least one torque arm coupled to opposing sides of the gearbox housing. Each of the torque arms includes a proximal end and a distal end. The proximal ends are removably coupled to the exterior surface of the gearbox such that the distance between the distal ends define the maximal installed width. The torque arms are coupled to at least one support element and to a bedplate of the wind turbine.

Scroll type compressor

A scroll type compressor includes a housing, a fixed scroll cooperating with the housing to define a discharge chamber, a movable scroll cooperating with the fixed scroll to define a compression chamber, and a shaft support member cooperating with the movable scroll to define a back pressure chamber. Fluid in the compression chamber is supplied to the back pressure chamber. The back pressure chamber and the discharge chamber communicate with each chamber through a relief passage. A check valve is disposed in the relief passage, and the check valve allows the fluid to flow from the back pressure chamber to the discharge chamber, when back pressure of the back pressure chamber is higher than discharge pressure of the discharge chamber.

Compact Multi-Disk Rotor Brake System for a Wind Turbine

A drivetrain system, braking method and braking system for a wind turbine is disclosed having a generator; a gearbox; a generator shaft and gearbox output shaft coupled between the generator and the gearbox, each shaft extending along a common longitudinal axis; a brake system having at least two brake disks with a first brake disk and a second brake disk, the first and second brake disks mounted concentric with the longitudinal axis; and a plurality of disk brake calipers having a first brake caliper and a second brake caliper, the first and second brake calipers mounted concentric with the longitudinal axis and engaged with the first and second brake disks, respectively.

MAIN SHAFT FIXTURE

A main shaft fixture for fixing a main shaft on a wind turbine during installation and repair work on heavy parts of the wind turbine nacelle, in the case where the fixture is formed of several sections for mounting on stable structural parts in the nacelle, including the nacelle's bottom frame. The main shaft fixture has adjustable pressure mandrels with tap shoes, which cause the fixture to be usable regardless of the turbine main shaft geometry, such that it can be mounted without fixing the rotor. The main shaft fixture also has facilities for mounting of a lightweight crane and a self-hoisting crane with a ground-based winch, respectively, as well as a rotor lock which, in combination with actuators of the main shaft fixture, enables the main shaft and the main shaft bearing to be sufficiently displaced vertically from its bearing in the nacelle to service or replace the bearing. 1. A self-hoisting crane comprising:mounting facilities for mounting to a lightweight crane,a winch located on a ground surface near a foot of the wind turbine, anda main shaft fixture for fixation of a main shaft on a wind turbine during execution of installation and repair work on heavy parts of a wind turbine, the fixture being divided up into a number of sections for mounting on stable structural parts in a wind turbine nacelle including a bottom frame of the nacelle, wherein the main shaft fixture comprises at least three independently, radially displaceable pressure mandrels for fixing of cylinder-shaped shafts with different diameters and for the fixing of shafts with conical shapes, the pressure mandrels being substantially symmetrical located around a center axis, first ends of said pressure mandrels, in use, facing the main shaft and being furnished with a tap shoe, wherein said pressure mandrels are displaceable between a passive, withdrawn lockable, position where the tap shoes are configured to be located at a distance from the surface of the main shaft and an advanced ...

ELECTRIC PUMP

An electric pump includes a shaft, a rotor provided outward in a radial direction of the shaft, and to be rotated to the shaft, an impeller fixed to the rotor, and a cylindrical cap attached to a tip end portion of the shaft. A pump housing includes a suction port provided in an extending direction of the shaft, and a discharge port provided at one side of the impeller and in a direction crossing an extending direction of the shaft. The shaft includes an exposed portion at a tip end side further than a portion to which the cap is attached in the tip end portion. The cap is held by the shaft, prevents the rotor from moving toward a tip end side of the shaft, and includes, on an outer peripheral portion, a first taper portion being decreased in diameter toward the tip end side of the shaft. 1. An electric pump , comprising:a motor housing, and a pump housing adjacent to the motor housing;a shaft including a base end portion fixed to the motor housing;a rotor housed in the motor housing, provided outward in a radial direction of the shaft, and to be rotated with respect to the shaft; andan impeller housed in the pump housing and fixed to the rotor at a side of a tip end portion of the shat, and a cylindrical cap attached to the tip end portion of the shaft, whereinthe pump housing includes a suction port provided in an extending direction of the shaft, and a discharge port provided at one side of the impeller and in a direction crossing an extending direction of the shaft,the shaft includes an exposed portion at a tip end side further than a portion to which the cap is attached in the tip end portion, andthe cap is held by the shaft, is configured to prevent the rotor from moving toward a tip end side of the shaft, and includes, on an outer peripheral portion, a first taper portion being decreased in diameter toward a tip end side of the shaft.2. The electric pump according to claim 1 , wherein the exposed portion of the shaft includes a second taper portion being ...

ROTARY MACHINE WITH IMPROVED SHAFT

A rotary machine is disclosed, which includes a rotary shaft having a rotation axis, a first shaft end, and a second shaft end; a first bearing arrangement at the first shaft end; a second bearing arrangement at the second shaft end; a coupling flange mechanically connected to the first shaft end. The coupling flange is mechanically connected to the first shaft end by means of a first axial-contact coupling. 1. A rotary machine comprising:a rotary shaft comprising a rotation axis, a first shaft end, and a second shaft end;a first bearing arrangement at the first shaft end;a second bearing arrangement at the second shaft end; anda coupling flange mechanically connected to the first shaft end;wherein the coupling flange is mechanically connected to the first shaft end by means of a first axial-contact coupling.2. The rotary machine of claim 1 , wherein the first axial-contact coupling comprises a first Hirth joint.3. The rotary machine of claim 1 , wherein the coupling flange has an outer flange diameter greater than a diameter of the first shaft end.4. The rotary machine of claim 1 , wherein the rotary shaft supports centrifugal impellers claim 1 , the rotary machine being a centrifugal compressor.5. The rotary machine of claim 1 , wherein the coupling flange comprises connection members for mechanical connection to a motion transmission joint.6. The rotary machine of claim 1 , wherein:the first shaft end overhangs beyond the first bearing arrangement and is provided with a first set of radial teeth formed on a first annular front surface and having a first diametrical outer dimension; andthe coupling flange comprises a second set of radial teeth, configured and arranged for meshing with the first set of radial teeth and formed on a second annular front surface on the flange and having a second diametrical outer dimension; and wherein the first diametrical dimension and the second diametrical dimension are smaller than the outer flange diameter.7. The rotary machine ...

Hydraulic Turbine Shaft Thrust Bearing Wear Pad

A thrust bearing wear pad includes a rigid support plate adapted to be mounted on a collar and under a thrust flange in a hydro power turbine system. Multiple lignum vitae wood blocks are fixed to the top of the support plate and act as a wear surface on the wear pad. 1. A thrust bearing wear pad comprising:a rigid support plate adapted to be mounted on a collar and under a thrust flange; anda plurality of lignum vitae blocks fixed to the support plate and forming a wear pad surface thereon,and wherein the lignum vitae blocks comprise heart sections of lignum vitae wood.2. The thrust bearing wear pad as described in claim 1 ,wherein the thickness of the lignum vitae blocks is at least one inch.3. A thrust bearing wear pad comprising:a rigid support plate adapted to be mounted on a collar and under a thrust flange; anda plurality of lignum vitae blocks fixed to the support plate and forming a wear pad surface thereon, andwherein the lignum vitae blocks are configured adjacent to each other and are each bonded onto a carbon fiber mat that is itself bonded to the support plate.4. The thrust bearing wear pad as described in claim 3 ,wherein each lignum vitae block has at least one hole drilled into and across an entire width of the block and within the thickness of the block;further comprising a fiber thread clamp extending through the hole and having a fiber length sufficient that opposite ends of the fiber thread extend out of each side of the lignum vitae blocks and down to the carbon fiber mat and that are bonded to the mat.5. The thrust bearing wear pad as described in claim 4 ,wherein the carbon fiber mat is bonded to the lignum vitae blocks with epoxy, and the fiber thread ends are bonded to the fiber mat with epoxy.6. The thrust bearing wear pad as described in claim 5 ,wherein the lignum vitae blocks comprise a top side that forms the wear pad surface, and a bottom side that is bonded to the carbon fiber mat and thereby to the support plate;the lignum vitae ...

IMPROVEMENTS RELATING TO WIND TURBINES

A method of determining the shape of at least part of a wind turbine blade during operation of the wind turbine, the method comprising measuring first and second values of acceleration at one or more locations on the blade, the first and second values of acceleration being in substantially mutually perpendicular directions, and determining a shape parameter of the blade based upon the relative magnitudes of the measured first and second values of acceleration at the one or more locations. 1. A method of determining the shape of at least part of a wind turbine blade during operation of the wind turbine , the method comprising:measuring first and second values of acceleration at one or more locations on the blade, the first and second values of acceleration being in substantially mutually perpendicular directions; anddetermining a shape parameter of the blade based upon the relative magnitudes of the measured first and second values of acceleration at the one or more locations.2. A method according to claim 1 , wherein the shape parameter is a blade bending angle and/or a position of the one or more locations on the blade.3. A method according to claim 2 , wherein the blade bending angle is the angle between a rotor axis of the wind turbine and the direction of the first value of acceleration at the one or more locations.4. A method according to claim 1 , the method comprising measuring first and second values of acceleration at a plurality of locations on the blade claim 1 , the first and second values of acceleration being in substantially mutually perpendicular directions claim 1 , and the plurality of locations being mutually spaced along the length of at least part of the blade.5. A method according to claim 1 , wherein determining the shape parameter comprises calculating a centripetal acceleration and/or a centrifugal acceleration of the one or more locations of the blade based upon the measured first and second values of acceleration.6. A method according to ...

AN ASSEMBLY FOR A WIND TURBINE, AND METHOD OF OPERATING AN ASSEMBLY FOR A WIND TURBINE

An assembly for a wind turbine, comprising a shaft extending within a main shaft housing. A radially outer portion of the shaft includes at least one engagement formation. A retention mechanism is moveable radially between a radially inward position in which the retention mechanism can engage the at least one engagement formation, such that rotation of the shaft is constrained, and a radially outward position in which the retention mechanism cannot engage the engagement formation, thereby allowing rotation of the shaft. 1. An assembly for a wind turbine , comprising:a main shaft housing;a shaft extending within the main shaft housing, a radially outer portion of the shaft comprising at least one engagement formation; and a radially inward position in which the retention mechanism can engage the at least one engagement formation, such that rotation of the shaft is constrained; and', 'a radially outward position in which the retention mechanism cannot engage the engagement formation, thereby allowing rotation of the shaft., 'a retention mechanism moveable radially between2. The assembly of claim 1 , wherein the engagement formation comprises at least one recess in an outer surface of the shaft.3. The assembly of claim 2 , comprising a plurality of the recesses circumferentially spaced apart in the outer surface of the shaft.4. The assembly of claim 2 , wherein the retention mechanism includes at least one locking element claim 2 , wherein:in the radially inward position, a portion of the or each locking element is at least partly engaged with a corresponding one of the at least one recesses; andin the radially outward position, the portion of the or each locking element is disengaged from the corresponding recess.5. The assembly of claim 4 , wherein the or each locking element is a pin.6. The assembly of claim 5 , wherein the main shaft housing comprises an aperture for the or each pin claim 5 , the or each pin being slideably mounted within its corresponding aperture ...

Method for Producing a Housing of a Screw Compressor

A method produces at least one first screw bearing seat and at least one first inner wall region in a rotor housing. The rotor housing is part of a housing of a screw compressor. The method orients the rotor housing of the screw compressor, and produces the first screw bearing seat and the first inner wall region of the rotor housing in at least one joint production operation.

METHOD OF MANUFACTURING TURBOCHARGER AND TURBOCHARGER

A method of manufacturing a turbocharger which allows easy performance of assembly operations of a motor rotor and a stator in a motor overhang structural turbocharger is provided. In a method of manufacturing a turbocharger in which a motor is attached to an end portion of a rotor shaft () connected to a compressor portion, the motor includes a cylindrical housing (), a stator () accommodated inside the housing (), and a motor rotor () which is connected to an end portion of the rotor shaft () with permanent magnets rotating inside the stator (), and the method includes a rotor installation step of connecting and attaching the motor rotor () to the rotor shaft (), a housing installation step of fixing and supporting the housing () coaxial to the rotor shaft (), and a stator installation step of using the housing () as a guide, and inserting the stator () into the housing () such that the stator () does not directly come into contact with the motor rotor () to incorporate the stator () into the housing (). 1. A method of manufacturing a turbocharger , comprising:attaching a motor to an end portion of a rotor shaft, the rotor shaft connected to a compressor portion, the motor including a cylindrical housing, a stator accommodated inside the cylindrical housing, and a motor rotor which is connected to an end portion of the rotor shaft and includes permanent magnets rotating inside the stator,connecting, during rotor installation, the motor rotor to the rotor shaft;coaxially fixing and supporting a housing during an installation of the housing to the rotor shaft; andguiding and inserting the stator, during installation of the stator, the housing; andinserting the stator into the housing such that the stator does not directly come into contact with the motor rotor to incorporate the stator into the housing.2. The method of manufacturing a turbocharger according to claim 1 , wherein during the rotor installation claim 1 , providing a protection tube on the motor rotor.3. ...

CAPSULE BUOY TYPE WAVE ENERGY CONVERTER

A capsule buoy type wave energy converter according to an embodiment of the present invention includes a buoy installed on the water surface, and a power generating unit received in the buoy in a sealed manner so as to generate power. The power generating unit may include a generator for generating power, at least one wave actuator for converting bidirectional movement caused by wave power into unidirectional movement, a torque generator for generating torque by the unidirectional movement transmitted from the wave actuator, and an accelerator for accelerating the torque from the torque generator so as to operate the generator. 1: A capsule buoy type wave energy converter comprising:a buoy disposed on the water surface; anda power generating unit accommodated in the buoy in a sealed manner to generate electricity,wherein the power generating unit comprises:a generator generating electricity;at least one wave actuator converting a bidirectional movement caused by wave power into a unidirectional movement;a torque generator generating rotational force from the unidirectional movement transferred from the wave actuator; andan accelerator accelerating the rotational force of torque generator to actuate the generator.2: The capsule buoy type wave energy converter according to claim 1 , wherein the wave actuator comprises:a stationary pendulum made of a heavyweight material and maintaining a vertically erected position;a first shaft connected to the stationary pendulum to rotate bidirectionally;a second shaft connected to the first shaft to rotate bidirectionally;a third shaft rotating in one direction by receiving force when the first shaft rotates in the opposite direction and transferring opposite directional force to the torque generator; anda fourth shaft rotating in one direction by receiving force when the second shaft rotates in the opposite direction and transferring opposite directional force to the torque generator.3: The capsule buoy type wave energy converter ...

INSULATED SHAFT JOINT

The present invention relates to an insulated shaft joint () for electrically insulating a rotational member () from an end section of a shaft () to which the rotational member () is connected. The insulated shaft joint () comprises a plurality of first grooves () arranged in an outer surface of the end section of the shaft () and extending in an axial direction of the shaft (), one or more rows of electrically insulating members (), and an annular electrically insulating cage () arranged circumferentially around the plurality of first grooves (). The insulating cage () comprises one or more rows of through-going openings (), arranged circumferentially. The through-going openings () is being shaped and dimensioned so that they are adapted to surround and guide the insulating members (). The rotational member () is arranged circumferentially around the annular electrically insulating cage (). The rotational member () comprises a plurality of second grooves () arranged in an inner surface of the rotational member () and extending in an axial direction of shaft (). The through-going openings () in the insulating cage () are arranged aligned with the plurality of first grooves () and the plurality of second grooves (). The insulating members () are arranged in the through-going openings () of the insulating cage () and in the first and second grooves, so as to be adapted to transfer torque from the shaft to the rotational member () via the insulating members (). 1. An insulated shaft joint for electrically insulating a rotational member from an end section of a shaft to which the rotational member is connected , the insulated shaft joint comprising:a plurality of first grooves arranged in an outer surface of the end section of the shaft and extending in an axial direction of the shaft,a plurality of electrically insulating members, andan annular electrically insulating cage arranged circumferentially around the plurality of first grooves, the insulating cage comprising ...

Clutch and compressor comprising same

Disclosed herein are a clutch and a compressor including the same. The clutch includes a hub fastened to a rotary shaft of the compressor to be rotatable together with the rotary shaft in a state in which a position of the hub is fixed, a disk fastened to the hub to be rotatable together therewith, a pulley rotated by power transmitted from a drive source of the compressor, an elastic member for fastening the hub and the disk such that the disk is movable toward or away from the pulley with respect to the hub, a field coil assembly magnetized when electric power is applied thereto to allow the disk and the pulley to come into contact with or separate from each other, and an attenuation member interposed between the elastic member and the disk. Accordingly, it is possible to reduce noise and vibration due to contact and separation between the disk and the pulley by the elastic member and the attenuation member.

RADIAL COMPRESSOR

A radial compressor for an exhaust gas turbocharger may include a compressor housing in which a flow channel is arranged, a compressor wheel arranged in the flow channel, a device influencing a characteristic field, and a discharge channel. The flow channel may delimit a flow path of air through the radial compressor. The flow channel may have a suction section via which the compressor wheel sucks in air. The compressor housing may have a circumferential section circumferentially surrounding the compressor wheel in which a spiral channel of the flow channel may be arranged via which air compressed by the compressor wheel flows out. The device may include a cavity fluidically connected to the suction section. The discharge channel may be arranged in the compressor housing feeding, via an inlet mouth point, into the cavity and extending to an outlet mouth point fluidically connecting the cavity to the spiral channel. 1. A radial compressor for an exhaust gas turbocharger , comprising:a compressor housing in which a flow channel is arranged, the flow channel delimiting a flow path of air through the radial compressor;a compressor wheel arranged in the flow channel and non-rotatably coupled to a rotatably mounted shaft;the flow channel having a suction section via which the compressor wheel sucks in air during operation;the compressor housing having a circumferential section surrounding the compressor wheel in a circumferential direction, in which a spiral channel of the flow channel extending in the circumferential direction is arranged via which air compressed during operation via the compressor wheel flows out;a device influencing a characteristic field of the radial compressor, the device including a cavity at least one of fluidically connected and fluidically connectable to the suction section;a discharge channel is arranged in the compressor housing feeding, via an inlet mouth point, into the cavity and extending to an outlet mouth point, the discharge channel ...

Wind scoop charging system

A system and methods are provided for a wind scoop charging system for recharging onboard batteries during operation of an electrically powered vehicle. The wind scoop charging system comprises a wind scoop configured to be coupled with a hood of the vehicle. One or more air inlets are disposed in the wind scoop to receive an airstream during forward motion of the vehicle. A wind turbine is disposed within the wind scoop and rearward of the air inlet. The wind turbine is configured to produce an electric current upon being turned by the airstream. A power cable is configured to direct the electric current from the wind turbine to one or more electronic devices that are configured to utilize the electric current. The electronic devices may include any of an onboard battery for powering the vehicle, mobile phones or smart phones, portable music players, tablet computers, cameras, and the like.

The rotary air compressor

본 발명은 로타리 피스톤 공기압축기에 관한 것으로, 로타리 피스톤의 회전 및 변위에 의해 공기를 압축하는 압축부를 구성하여 단순한 구조로 이루어져 유지보수가 용이한 로타리 피스톤 공기압축기에 관한 것이다. 본 발명은 구동모터부; 상기 구동모터부에 의해 작동하며 공기를 압축하는 압축부; 상기 압축부의 일측에 설치되는 냉각부를 포함하되, 상기 압축부는 공기가 유입되는 유입유로가 형성된 제1유닛과, 상기 제1유닛의 중앙부를 관통하여 구동모터부에 연결 설치되는 회전축과, 상기 제1유닛의 일측에 구비되며 중앙부에 에피트로코이드 곡선 형상의 3개의 수용부가 형성되는 제2유닛과, 상기 회전축에 편심되게 설치되어 회전하며, 상기 제1유닛의 유입유로 및 제2유닛의 수용부에 연통되는 이동통로가 형성되고, 상기 수용부에 압축공간이 형성되도록 외주면의 적어도 둘 이상의 부위가 상기 수용부의 내주면에 접하는 로타리 피스톤과, 상기 로타리 피스톤에 구비되어 외주면에 기어이가 형성되는 고정기어와, 상기 제2유닛의 일측에 구비되며 상기 고정기어가 내접되는 내치기어부를 포함하는 것을 특징으로 한다. The present invention relates to a rotary piston air compressor, and to a rotary piston air compressor with a simple structure and easy maintenance by configuring a compression part that compresses air by rotation and displacement of a rotary piston. The present invention is a drive motor unit; a compression unit operated by the driving motor unit and compressing air; A cooling unit installed on one side of the compression unit, wherein the compression unit includes a first unit having an inflow path through which air is introduced, a rotating shaft connected to the driving motor unit through a central portion of the first unit and installed, and the first A second unit provided on one side of the unit and having three accommodating portions in the central portion of the epitrochoid curved shape is installed and rotated eccentrically on the rotation shaft, and communicates with the inflow passage of the first unit and the receiving portion of the second unit. a rotary piston having at least two portions of an outer peripheral surface in contact with the inner peripheral surface of the accommodating part so that a movement passage is formed and a compression space is formed in the accommodating part, and a fixed gear provided in the rotary piston to have gear teeth formed on the outer peripheral surface; It is provided on one side of the second unit and characterized in that it includes an internal gear portion to which the ...

Sealing apparatus for volumetric rotary pump

The present invention relates to a sealing apparatus for a rotary volumetric pump, capable of preventing a water leak between a rotary shaft and a case of a rotary volumetric pump. The sealing apparatus for a rotary volumetric pump, in which a rotary shaft installed in a pump case to be rotated and a sealing member installed in the pump case to maintain sealing are installed, includes: a body frame installed in the pump case and having a through hole formed in a center part to be penetrated by the rotary shaft and having an insertion space part formed on an inner circumference surface of the through hole; a spacer inserted into the insertion space part of the body frame and having a through hole formed in a center part to be penetrated by the rotary shaft; a sealing member inserted into the insertion space part of the body frame to be tightly installed in a side part of the spacer, and having a through hole formed in a center part to be brought into tight contact with the back side of the rotary shaft; and an elastic member installed on a rear end side of the sealing member to support the sealing member while restoring the same, and having a through hole formed in a center part to be penetrated by the rotary shaft.

Wind turbine

Wind turbine comprising a hub (10) with one or more blades, said hub (10) being rotatably mounted on a frame (20) and operatively coupled to a shaft (30), wherein said shaft (30) is provided at least partially internally of said frame (20), and wherein, a centre piece (40) from which a plurality of spokes (44) extend substantially radially is mounted on said shaft (30), and wherein the hub (10) is provided with a plurality of circumf erentially arranged axial protrusions (14), and wherein flexible elements (42) are arranged to connect the spokes (44) to said protrusions (14).

Wind turbine rotor support arrangement.

Wind energy plant

Drive train assembly

Die Erfindung betrifft eine Triebstranganordnung vorzugsweise für eine Windkraftanlage mit einer Rotorwelle (2), einem Generator (5) und einem Getriebe (1), das mittelbar oder unmittelbar mit der Rotorwelle (2) und dem Generator (5) verbunden ist, wobei das Getriebe (1) zumindest teilweise oder vollständig in die Rotorwelle (2) integriert ist.

Efficient energy-saving power generation equipment and power generation method thereof

本发明公开了一种高效节能发电设备，它包括开设于水坝内的排水通道、设置于排水通道入口端处的防堵装置、顺次设置于水坝右侧的上游发电装置和下游发电装置，排水通道的出口端处连接有三通管，三通管的两个出口端处分别连接有右截止阀和左截止阀，上游发电装置包括机壳、水轮和上游发电机组，机壳的左右侧分别固设有位于水轮两侧的左喷管和右喷管，两个喷管均倾斜向下设置，主轴与上游发电机组之间设置有换热装置；下游发电装置包括排水管、下游发电机组和转轴。本发明的有益效果是：提高发电量、提高发电效率、降低发电成本、充分利用水轮主轴热量。