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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3333. Отображено 100.
10-01-2017 дата публикации

Привод направляющего аппарата

Номер: RU0000167639U1

Полезная модель относится к области гидроэнергетики и может быть использована в качестве привода для управления направляющим аппаратом гидроагрегатов, в частности гидротурбин. Техническим результатом полезной модели является повышение надежности работы и долговечности привода направляющего аппарата, удобство его эксплуатации, а также повышение качества работы привода за счет упрощения технического обслуживания. Привод направляющего аппарата гидроагрегата включает электроцилиндр 13, предохранительный узел 21 в виде предварительно деформированной пружины 22, размещенной между упорами 23 и 24, установленными с возможностью взаимного перемещения в направлении деформации пружины 22. Механизм передачи усилия от электроцилиндра 13 к направляющему аппарату гидроагрегата выполнен в виде входного вала 3, выходного вала 4, жестко закрепленных на входном валу 3 рычагов 6 и 7, а на выходном валу 4 рычагов 8 и 9. Рычаг 6 шарнирно сочленен со штоком электроцилиндра 13, рычаг 7 шарнирно сочленен со стержневым элементом 10, другой конец которого шарнирно сочленен с рычагом 8. Рычаг 9 шарнирно сочленен с тягой 11 направляющего аппарата. При перемещении штока 14 электроцилиндра 13 приводится в движение рычаг 6 и через вал 3 и рычаг 7 движение передается через стержневой элемент 10 силоизмерителем 12 на рычаг 8. Перемещение тяги 11 направляющего аппарата осуществляется от рычага 9 за счет вращения вала 4. 1 з.п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 167 639 U1 (51) МПК F03B 15/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016114475, 14.04.2016 (24) Дата начала отсчета срока действия патента: 14.04.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 14.04.2016 (73) Патентообладатель(и): Жук Владислав Алексеевич (RU) (45) Опубликовано: 10.01.2017 Бюл. № 1 1 6 7 6 3 9 R U (57) Формула полезной модели 1. Привод направляющего аппарата гидроагрегата, включающий исполнительный ...

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30-11-2018 дата публикации

Регулятор частоты вращения гидротурбины

Номер: RU0000185322U1

Полезная модель касается усовершенствования электрогидравлического регулятора частоты вращения гидротурбины. Технический результат заключается в повышении точности и качества регулирования частоты вращения гидротурбины, снижении частоты и амплитуды колебаний регулирующих органов гидротурбины в установившихся режимах работы гидроагрегата, увеличении периодов включения маслонасосов маслонапорной установки. Предложен регулятор частоты вращения гидротурбины, содержащий датчик частоты вращения, датчик ускорения, интегратор, механизм управления, выходы которых соединены через сумматор с усилителем и блоком адаптации, обеспечивающим изменение коэффициента усиления сигнала рассогласования, поступающего в усилитель, блок коррекции, распределительный золотник, соединенный с серводвигателем, датчик обратной связи положения штока серводвигателя, выход которого соединен с сумматором. Сигнал интегратора комбинируется на сумматоре с сигналом отклонения частоты, сигналом ускорения, сигналом механизма управления и сигналом постоянного статизма. Результирующий сигнал с сумматора, усиленный усилителем и измененный блоком коррекции, приводит в действие распределительный золотник, управляющий серводвигателем системы клапанов. Положение серводвигателя системы клапанов определяет расход воды через гидротурбину, частота вращения которой определяется величиной расхода. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 185 322 U1 (51) МПК F03B 15/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F03B 15/04 (2018.08) (21)(22) Заявка: 2018127784, 27.07.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 30.11.2018 (73) Патентообладатель(и): Акционерное общество "ТЯЖМАШ" (RU) (56) Список документов, цитированных в отчете о поиске: RU 51680 U1, 27.02.2006. RU 68604 (45) Опубликовано: 30.11.2018 Бюл. № 34 1 8 5 3 2 2 U1, 27.11.2007. RU 129162 U1, 20.06.2013. RU 138951 U1, 27.03.2014. CN 05594067 U, 21.09.2016. (54) ...

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26-04-2012 дата публикации

Pump storage arrangement, method of operating a pump storage arrangement and pump storage hydropower plant

Номер: US20120098267A1
Принадлежит: Sulzer Pumpen Deutschland GmbH

A method of operating and a pump storage arrangement are disclosed. The arrangement includes a main flow machine arranged between an energy store and an energy sink such that a fluid medium is conveyed out of the energy sink through the main flow machine into the energy store during pump operation while converting electrical energy into kinetic flow energy. The fluid medium is conveyed out of the energy store through the flow machine back into the energy sink during turbine operation while converting the stored potential energy into electrical energy. An auxiliary flow machine is arranged in series with the main flow machine and a conversion means is provided such that the fluid medium is conveyable through the main flow machine and the auxiliary flow machine during pump operation and the fluid medium is only conveyable through the main flow machine during turbine operation.

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07-06-2012 дата публикации

Energy release buoyant actuator

Номер: US20120141207A1
Принадлежит: Ceto IP Pty Ltd

A buoyant actuator ( 10 ) is used in apparatus ( 11 ) for harnessing wave energy in a body of water such as the ocean. The buoyant actuator ( 10 ) is deployed within the body of water ( 12 ) and is responsive to wave motion in the body of water. The buoyant actuator ( 10 ) includes a body ( 101 ) incorporating a flow path along which water can flow, and a gate means ( 115 ) for controlling flow along the flow path. The gate ( 115 ) includes closure elements configured as flaps ( 221 ) providing a barrier ( 222 ) across the flow path through the body ( 101 ). Each flap ( 221 ) is moveable into and out of a condition in which it cooperates with the other flaps ( 221 ) to provide the barrier ( 222 ). A latch mechanism ( 231 ) is provided for releasably retaining each flap ( 221 ) in the condition providing the barrier ( 222 ). The latch mechanism ( 231 ) has a magnetic coupling.

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06-12-2012 дата публикации

Fluid-cooled load resistor for use in energy production and use therefor

Номер: US20120306201A1
Автор: Per Hassel SØRENSEN
Принадлежит: Energreen AS

A load resistor device for a generator driven by a turbine in a fluid string wherein the load resistor is provided with at least one electrical element in heat conducting connection with the turbine driving fluid. Also described is a method for use of such a device.

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06-06-2013 дата публикации

FLUID TURBINE SYSTEMS

Номер: US20130142619A1
Принадлежит: CALIFORNIA ENERGY & POWER

Various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy. The turbine system can have a blade assembly. The blade assembly can have a plurality of blades rotatable about an axis. The turbine system can have a concentrator positionable upwind and in front of a return side of the blade assembly. The concentrator can define a convex surface facing the wind. The turbine system can also have a variable concentrator positionable upwind of a push side of the blade assembly. The variable concentrator can be adjustable between a first position and a second position, the variable concentrator being capable of deflecting more wind toward the turbine in the first position than in the second position. 1. A fluid turbine system , comprising:a turbine comprising blades rotatable about an axis, the blades defining a window along a substantial portion of a height of the blades, wherein a first plane parallel with and intersecting the axis divides the space surrounding the turbine into a return side and a push side opposite the return side, the turbine configured to rotate generally in an upstream direction on the return side and generally in a downstream direction on the push side relative to a fluid flowing nominally parallel to the plane; anda concentrator positionable upstream of at least a portion of the turbine and at least partially or completely on the return side, the concentrator comprising a first curved surface portion configured to extend from a first position upstream of the turbine to a second position further upstream of the turbine and further into the return side, wherein the first curved surface portion is configured to be convex facing an upstream direction of the fluid flow, the first curved surface portion positionable to deflect at least some fluid toward the push side, the concentrator further positionable to create a relative vacuum to draw at least some fluid away ...

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13-06-2013 дата публикации

METHOD FOR OPERATING A MACHINE LOCATED IN CHOPPY WATERS

Номер: US20130147193A1
Принадлежит: ROBERT BOSCH GMBH

A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables. 1. A method for operating a machine located in choppy waters , comprising:determining measurement variables at a first, relatively early time;calculating a variable characterizing a wave movement expected at a second, relatively late time on the basis of the measurement variables determined at the first, relatively early time; andoperating the machine taking into account the variable characterizing the wave movement expected at the second, relatively late time.2. The method according to claim 1 , wherein the variable characterizing the wave movement expected at the second claim 1 , relatively late time is a speed field or a speed potential.3. The method according to claim 1 , wherein the operation of the machine comprises influencing at least one manipulated variable of the machine taking into account the variable characterizing the wave movement expected at the second claim 1 , relatively late time.4. The method according to claim 3 , wherein the influencing of the at least one manipulated variable of the machine comprises pilot control of the manipulated variable.5. The method according to claim 1 , wherein the machine is a wave energy converter configured to convert energy from the wave movement into another form of energy.6. The method according to according to claim 3 , wherein the machine is a wave energy converter configured to convert energy from the wave movement into another form of energy claim 3 , and wherein the at least one manipulated variable comprises one or more of an electric generator torque and a pitch angle of at least one coupling body of the wave ...

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10-10-2013 дата публикации

Francis-Type Pump for a Hydroelectric Power Plant

Номер: US20130266445A1
Автор: Bernd Mayr, Martin Giese
Принадлежит: VOITH PATENT GMBH

The invention relates to a Francis-type pump, comprising the following features: a blade wheel; a spiral housing; a suction pipe; a counter-swirl generator which is arranged in the inlet to the blade wheel and which can be activated during the start-up and deactivated after start-up, and which generates a swirl acting against the direction of rotation of the blade wheel.

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21-11-2013 дата публикации

Improvements in Turbines

Номер: US20130309071A1
Принадлежит: Oceanlinx Ltd

This invention relates to a turbine for extracting energy from an oscillating working fluid. The turbine includes a housing defining a flow passage for the working fluid. An energy conversion unit is disposed in the housing. Flow control means is selectively movable to occlude a predetermined portion of the flow passage such that the working fluid is directed to act on a certain section of the energy conversion unit.

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05-12-2013 дата публикации

WATER CURRENT TURBINE ARRANGEMENTS

Номер: US20130320675A1
Автор: VIGARS Paul
Принадлежит: TIDAL GENERATION LIMITED

A method is described for controlling a water current turbine array which includes first and second pluralities of water current turbines operable to generate electricity from a water current. The method includes controlling respective power generation characteristics of the water current turbines in the array so as to maximise power generation of the array as a whole. 1. A method for controlling a water current turbine arrangement which includes first and second pluralities of water current turbines operable to generate electricity from a water current , the first plurality of water current turbines being upstream of at least one of the turbines in the second plurality , the water current turbines having respective individual power generation characteristics , the method comprising independently controlling the individual power generation characteristics of each of the water current turbines in the arrangement so as to maximise overall energy capture from the arrangement as a whole.2. A method as claimed in claim 1 , wherein the first and second pluralities of water current turbines are arranged in respective first and second rows claim 1 , so as to form an array.3. A method as claimed in claim 1 , further comprising receiving measurement information indicative of respective individual power generation characteristics of the water current turbines claim 1 , and using received measurement information in controlling the water current turbines.4. A method as claimed in . comprising controlling the respective individual power generation characteristics of the water current turbines of the first plurality independently of controlling the respective individual power generation characteristics of the water current turbines of the second plurality.5. A method as claimed in claim 1 , comprising defining groups of water current turbines claim 1 , and controlling the power generation characteristics of water current turbines in one such group independently of turbines in ...

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26-12-2013 дата публикации

WASTE WATER ELECTRICAL POWER GENERATING SYSTEM

Номер: US20130343870A1
Автор: Cripps Jeffrey L.
Принадлежит:

An electrical power generating system is connected to a sewer for conveying waste water to a sanitary treatment station. Waste water is propelled through the sewer line by pumping equipment which simultaneously pulverizes most large objects carried by the waste water. The waste water drives one or more water-operated turbines. The turbines are operatively connected to electrical power generators for producing electrical power and dispersing the power through an electrical power transmission system. 1. A waste water electrical power generating system comprising:at least one electrical power generator;driving means coupled to drive the at least one electrical power generator in response to a waste water flow in a main waste water pipeline that is sloped to generate the waste water flow by gravity;at least one actuator, coupled to the main waste water pipeline, for controlling an amount of the waste water flow to the driving means; andcapture means, coupled to the main waste water pipeline upstream from the driving means, for capturing particles present in the waste water flow;wherein electrical power is generated in response to the waste water flow.2. The waste water electrical power generating system of wherein the driving means includes a turbine.3. The waste water electrical power generating system of wherein the driving means includes a water wheel.4. The waste water electrical power generating system of wherein the capture means includes a screen.5. The waste water electrical power generating system of wherein the capture means includes a catch basin.6. A waste water electrical power generating method comprising:providing a waste water flow that is gravity driven in a waste water pipeline;driving, via a driver, at least one electrical power generator to generate electrical power in response to the waste water flow;controlling an amount of the waste water flow to the driver;capturing particles present in the waste water upstream from the driver.7. The method of ...

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20-03-2014 дата публикации

WAVE POWER CONVERTING DEVICE

Номер: US20140075932A1
Автор: Yu Yun-Chang
Принадлежит:

A wave power converting device includes a platform, a plurality of first and second fluid guide assemblies and floating assembly. The platform has a retaining post anchored to an underwater ground. The first and second fluid guide assemblies are disposed underwater so that the water could flow into the first and second fluid guide assemblies. The floating assembly could be moved up and down relative to the platform so as to press the water upwardly through the first and second fluid guide assemblies to a reservoir. Under this arrangement, the energy potential of the water in the reservoir can be converted into electrical power. 1. A wave power converting device , comprising:a platform, the platform having a retaining post anchored to an underwater ground;a plurality of first fluid guide assemblies assembled to the platform, each of the first fluid guide assemblies having a first guide tube and a first side tube, the first guide tube disposed underwater with one end, the first side tube extended upwardly from one lateral side of the first guide tube;a plurality of second fluid guide assemblies assembled to the platform, each of the second fluid guide assemblies having a second guide tube and a second side tube, the second guide tube disposed underwater with one end, the second side tube extended downwardly from one lateral side of the second guide tube; anda floating assembly, the floating assembly having a top plate, a bottom plate and a connecting rod, the floating assembly assembled to the platform and the floating assembly being movable up and down relative to the platform, the top plate having a plurality of first pistons extended downwardly therefrom, each of the first pistons inserted into the respective first side tube, the bottom plate having a plurality of second pistons extended upwardly therefrom, each of the second pistons inserted into the respective second side tube, the top plate having a plurality of positioning grooves defined around an outer ...

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20-03-2014 дата публикации

HYDROSTATIC MOTOR AND METHOD FOR OPERATING A HYDROSTATIC MOTOR

Номер: US20140079531A1
Автор: Rahmanifar Majid
Принадлежит:

Disclosed is a motor which uses a hydrostatic force to generate a torque which repeats cyclically owing to a displacement of the center of gravity of a cyclic unit. Float bodies () are subjected to a buoyant force in a fluid (), which buoyant force causes an upward movement () of the float bodies and drives these into an upper position. The upward movement drives a drive element. The upward movement furthermore causes air to be forced from upper segments () of a deformable element () into lower segments (), and as a result the center of gravity of the cyclic units which comprise the float bodies () and the deformable element () is raised above an axis of rotation (). When the float bodies () have passed into the upper position thereof, said elevated center of gravity position permits a rotation of the cyclic units into the initial position thereof. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. A motor which is designed to generate a torque using a hydrostatic force , wherein the torque is generated on the basis of a displacement of the center of gravity of a rotary unit , and wherein the motor has a drive element and the rotary unit has a rigid , dimensionally stable float body;wherein the rotary unit is arranged in a liquid fluid such that the float body whose relative density is lower than the relative density of the liquid fluid is, in a lower position, subject to a buoyant lift force which drives the float body in an upward movement into an upper position and thereby drives the drive element; andwherein the center of gravity of the rotary unit, with the float body in the upper position, is situated above the drive element, and the center of gravity thereby drives the rotary unit into an initial position in which the float body is in the lower position; and 'a deformable element comprising a gaseous fill medium;', 'wherein the rotary unit also compriseswherein ...

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27-03-2014 дата публикации

METHOD OF CONTROLLING A DEVICE FOR CONVERTING WAVE ENERGY TO ELECTRICAL ENERGY

Номер: US20140084586A1
Принадлежит:

The invention is a method of converting wave energy into electrical energy using a device comprising a moving device cooperating with an electric motor which oscillates with respect to the motor under the action of the waves. 112-. (canceled)13. A method of converting wave energy to electrical energy using a device comprising:a moving element cooperating with an electrical motor, the moving element oscillating with respect to the motor under the action of waves, comprising:a) selecting a relationship expressing a position of the moving element as a function of the force exerted by the motor on the moving element as a function of wave force applied to the moving element;b) actuating the motor in order to produce a given force on the moving element;c) measuring the position of the moving element with respect to the motor over time;d) determining the wave force using the relationship selected in a), accounting for the force of the motor given in b) and the position of the moving element measured in c);e) determining a new value of force exerted by the motor on the moving element, the new value corresponding to a force maximizing the average electrical power generated by the motor, the average electrical power depending on the wave force determined in d), on the new value of the force exerted by the motor on the moving element and on the position of the moving element with respect to the motor; andf) actuating the motor to produce the new force determined in e) by supplying electrical energy to the motor when the force of the motor drives the moving element and by recovering electrical energy from the motor when the force of the motor resists motion of the moving element.14. A method as claimed in claim 13 , wherein the relationship selected in a) expresses an equality between a sum of the forces applied to the moving element and a product of a mass of the moving element by the acceleration of the moving element.15. A method as claimed in claim 13 , comprising:selecting ...

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10-04-2014 дата публикации

Super Efficient Regulator

Номер: US20140096513A1
Принадлежит: National Oilwell Varco LP

A system for producing mechanical energy. In some embodiments, the system includes a first source providing a first fluid, a fluid pressurization device, a second source supplying a second fluid, a first motor, and a second motor. The fluid pressurization device draws in the first fluid from the first source and increases the pressure of the first fluid. The first motor is driven by the second fluid, the second fluid decreasing in pressure and the first motor powering the fluid pressurization device as the second fluid passes through the first motor. The second motor receives a mixture of the first fluid from the first motor and the second fluid from the fluid pressurization device, whereby the second motor produces the mechanical energy.

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04-01-2018 дата публикации

METHOD AND SYSTEM FOR ADJUSTING THE TORQUE OF A MASS AND SPINNING WHEEL ROTATOR IN A WAVE POWER PLANT

Номер: US20180003146A1
Автор: PAAKKINEN Antti
Принадлежит: WELLO OY

The invention relates to a method and a system for adjusting the torque of a mass and spinning wheel rotator in a wave power plant. The torque of a rotator rotating around a vertical shaft is compensated partially or completely with a compensating moment which is produced by an electric machine. Acceleration components (x and y) are measured for a given point of the wave power plant's floating body () in directions perpendicular to each other. A vector (V) with a magnitude formula (A) and a direction (a) is established for said acceleration components, the direction or angular position (a) of a rotator () is monitored and its lag (α) from the acceleration vector's direction (α) is determined. The compensating moment is adjusted as dependent on a compensation factor (B) whose sub-factors are the magnitude of the body's acceleration vector (V) and the sine of the angle of lag (sin α). This is supplemented with a compensation factor based on spinning wheel forces in a manner otherwise similar except that the acceleration must be replaced with a rotation speed (AV) of the body's inclination, which is obtained from an inertial sensor ). and the mass must be replaced with a gyro force which is dependent on the inertia and rotating speed of a spinning wheel. 1. A method for adjusting the torque of a mass and gyro rotator in a wave power plant , said method comprising compensating partially or completely the torque of a rotator , which rotates around a vertical shaft , with a compensating moment which is produced by an electric machine , said method comprising measuring acceleration components for a given point of the wave power plant's floating body in directions perpendicular to each other as projected onto the rotator's plane of rotation , establishing a vector with a magnitude and direction for the measured acceleration components , monitoring the direction or angular position of a rotator and determining its lag from the direction of the acceleration components’ vector ...

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04-01-2018 дата публикации

LINEAR ARRAY OF WAVE ENERGY CONVERSION DEVICES

Номер: US20180003147A1
Принадлежит:

The invention relates to the extraction of energy from waves and comprises a linear array of several Salter's Ducks set roughly perpendicular to the oncoming wave crest. The Ducks are each rotatably connected through a power take-off device to a rigid space frame. The Ducks are spaced and designed to have an optimized natural frequency of each Duck and the array and space frame as a whole and the response characteristics of each Duck may be further modified by controls on the power take-off in response to signals from the whole array of Ducks, particular the lead Duck, but possibly also each other Duck and the space frame motion as a whole. The whole space frame and Duck array can be moored by any means appropriate, but most likely to a single point catenary moor, though other mooring systems are possible. 1. An apparatus for converting the energy of waves in water to other useful forms comprising a multiplicity of floating ovoid bodies with a center of rotation horizontal and approximately perpendicular to an oncoming wave , said bodies being configured with an asymmetric shape about said axis of rotation so as to cause said cams to rotate about said axes of rotation when excited by said wave , said cams being arrayed in columns approximately perpendicular to the direction of travel of the wave , said bodies being rotably attached to an elongated rigid structure that fixes said bodies in position relative to each other , said rotable attachment being equipped with means to convert the rotation of said bodies to other forms of energy , and said elongated structure floating horizontally near the surface of the water , supported by said bodies.2. The apparatus of where the bodies have a cross section of Salter's Duck.3. The apparatus of wherein the bodies upwave of the following bodies generate a signal that modifies the action of said energy conversion means to maximize energy extraction by varying the relationship between the moment reacting said rotation and the ...

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07-01-2021 дата публикации

FLOW CONTROLLER

Номер: US20210003109A1
Автор: ROSÉN Per
Принадлежит: E.ON Sverige AB

The present invention relates to a flow controller configured to selectively act as a pump or as a flow regulator. The flow controller comprises: an inlet for a fluid; an outlet for the fluid; a pump assembly arranged between the inlet and the outlet and configured to pump the fluid through the flow controller from the inlet to the outlet; a hydro electrical generator assembly arranged between the inlet and the outlet, the hydro electrical generator assembly configured to allow the fluid flow through the flow controller from the inlet to the outlet and to generate electricity by transforming flow energy of the fluid flowing through the flow controller into electricity; and a mode controller configured to selectively set the flow controller in a pumping mode or in an electricity generating mode. 1. A flow controller configured to selectively act as a pump or as a flow regulator for a transport of fluid from a first reservoir to a second reservoir , the flow controller comprising:an inlet connectable to the first reservoir;an outlet connectable to the second reservoir;a pump assembly arranged between the inlet and the outlet, the pump assembly comprising a first wheel configured to pump fluid through the flow controller in a flow direction from the inlet to the outlet, thereby pumping fluid from the first reservoir to the second reservoir;a flow regulator assembly arranged between the inlet and the outlet, the flow regulator assembly comprising a second wheel configured to rotate against the flow direction from the inlet to the outlet, thereby regulating a fluid flow from the first reservoir to the second reservoir; anda mode controller configured to selectively set the flow controller in a pumping mode or in a flow regulating mode based on a signal indicative on a pressure difference between the fluid at the inlet and the fluid at the outlet;wherein upon being set in the pumping mode, the mode controller is configured to activate the pump assembly; andwherein upon ...

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08-01-2015 дата публикации

METHODS FOR MONITORING A SEAL ASSEMBLY

Номер: US20150008670A1
Принадлежит:

A method for monitoring functionality of a seal assembly within an injector feed assembly is described. The method includes providing a buffer fluid to the seal assembly, measuring at least one of a pressure and a flow rate of the buffer fluid, and determining a functionality of the seal assembly based at least partially on the at least one of a pressure and a flow rate of the buffer fluid. 1. A method for monitoring functionality of a seal assembly within an injector feed assembly , said method comprising:providing a buffer fluid to the seal assembly;measuring at least one of a pressure and a flow rate of the buffer fluid; anddetermining a functionality of the seal assembly based at least partially on the at least one of a pressure and a flow rate of the buffer fluid.2. A method according to wherein determining the functionality of the seal assembly comprises determining whether the at least one of a pressure and a flow rate of the buffer fluid is within a predetermined range.3. A method according to further comprising providing an alert upon a determination of a seal assembly failure.4. A method according to further comprising initiating a reactor shutdown upon a determination of a seal assembly failure.5. A method according to wherein providing the buffer fluid to the seal assembly comprises providing the buffer fluid at a pressure that is greater than the pressures of either process fluid separated by the seal assembly.6. A method according to further comprising:determining a composition of at least one of the process fluid and the buffer fluid; anddetermining a functionality of the seal assembly based at least partially on the determined composition.714-. (canceled)15. A power generation plant comprising:at least one carbonaceous reactant source;at least one oxygenated fluid reactant source; an adapter and a tip section, said tip section configured to be releasably coupled to said adapter, wherein said adapter and said tip section each comprise at least one ...

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12-01-2017 дата публикации

ENERGY CONVERSION SYSTEMS AND METHODS

Номер: US20170009807A1
Принадлежит: OCEANA ENERGY COMPANY

An energy conversion system includes a stationary structure and a rotatable structure configured to rotate relative to the stationary structure. The system includes at least one blade member mounted to and extending radially outward from the rotatable structure. The blade member is configured to interact with fluid currents to cause the rotatable structure to rotate about an axis of rotation. The system includes a first magnetic bearing component disposed on the rotatable structure and a second magnetic bearing component disposed on the stationary structure. The magnetic bearing components have an aligned position in which the components are axially aligned along the axis of rotation with respect to each other. Axial displacement of the magnetic bearing components from the aligned position generates a magnetic field between the components that provides an axially-directed restoring force between the rotatable structure and the stationary structure to reposition the components to the aligned position. 1. (canceled)2. An energy conversion system comprising:a stationary structure;a rotatable structure configured to rotate relative to the stationary structure, the rotatable structure defining an axis of rotation;at least one blade member mounted to and extending radially outward from the rotatable structure, the at least one blade member being configured to interact with fluid currents to cause the rotatable structure to rotate about the axis of rotation; anda first magnetic bearing component disposed on the rotatable structure and a second magnetic bearing component disposed on the stationary structure, the first and second magnetic bearing components having an aligned position in which the magnetic bearing components are axially aligned along the axis of rotation with respect to each other,wherein axial displacement of the first and second magnetic bearing components from the aligned position generates a magnetic field between the magnetic bearing components that ...

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27-01-2022 дата публикации

WAVE POWER GENERATION APPARATUS

Номер: US20220025841A1
Принадлежит: INGINE, INC.

A wave power generation apparatus is disclosed. A wave power generation apparatus according to one embodiment can comprise: a floating body floating on the surface of the sea; a power transmission part, which is connected to the floating body so as to receive power generated according to the movement of the floating body, and moors the floating body on the surface of the sea; and a mooring angle adjustment module for adjusting the mooring angle of the floating body for the power transmission part according to the state of the waves acting on the floating body. 1. A wave power generation apparatus , comprising:a floating body configured to float on a surface of sea waters;a power transfer member connected to the floating body and configured to receive power generated from a movement of the floating body and moor the floating body on the surface of sea waters; anda mooring angle adjustment module configured to adjust a mooring angle of the floating body with respect to the power transfer member based on a state of waves that act on the floating body.2. The wave power generation apparatus of claim 1 , wherein the mooring angle adjustment module comprises:a movable member connected to the floating body and configured to perform a translational motion in an outward direction of the floating body,wherein the power transfer member is fixed to a seabed below the floating body via the movable member.3. The wave power generation apparatus of claim 2 , wherein the mooring angle adjustment module is configured to allow the movable member to perform the translational motion such that a distance between the floating body and a passing portion of the power transfer member associated with the movable member changes.4. The wave power generation apparatus of claim 2 , wherein the mooring angle adjustment module further comprises:a driver configured to allow the movable member to perform the translational motion;a sensor configured to sense the state of the waves that act on the ...

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14-01-2016 дата публикации

MARINE HYDROKINETIC TURBINE

Номер: US20160010620A1
Автор: Han Kyung Soo
Принадлежит:

A marine hydrokinetic electric power generator comprises one of a stator and a rotor which is adjustably movable through an infinite number of positions from being proximate to one another so that their magnetic fields overlap mostly to a position such that the rotor is most distant from the stator and has little overlap of magnetic field strength. Hatch and speed control may be also provided by a spur/helical gear assembly of sun and planetary gear sets referred to herein as a Transgear™ gear assembly. The variable (or fixed) power generator in operation may comprise one of a rotor and a stator being out of phase with one another by an angle, for example, the one of the rotor or the stator leading or lagging the other. In this instance, a motor such as a servo motor may be used to rotationally compensate for the out-of-phase angle by radially moving the rotor with respect to the stator or vice versa. The variable (or fixed) power generator may also be applied in a cam-controlled speed converter and a wind turbine electric power generator. The variable power generator of a marine hydrokinetic electric power generator may be used as a low torque generator and a high power-rated generator in these applications and may generate more electric power than a conventional fixed power generator (the rotor axially aligned to overlap the stator in a conventional manner). 1. A marine hydrokinetic electric power generator comprisinga variable power generator coupled to an input shaft and to an output shaft, the variable power generator comprising a rotor and a stator axially adjustable along the output shaft so that the rotor may be displaced with respect to the stator or the stator may be displaced with respect to the rotor, the variable power generator with a minimum displacement and complete overlap of rotor and stator and a maximum torque value in one position and with a maximum displacement and relative non-overlap of rotor and stator and a minimum torque value in another ...

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11-01-2018 дата публикации

HYDROPOWER INSTALLATION

Номер: US20180010311A1
Автор: Harris Guy Gardner
Принадлежит: Progenesys

A hydropower installation includes a water supply and an energy generating station, with the supply at a higher level than the energy generating station; and a duct extending between the supply and the energy generating station. The energy generating station of the hydropower installation is configured based on high water velocity and low pressure. The duct may comprise plastic pipes. The duct may be arranged on a foam support and enclosed by a foam embedment. The duct may comprise at least two duct sections, with an intermediate energy generating station arranged between the duct sections of the duct. The duct may comprise internally extending protrusions, such as dimples to promote a laminar flow of fluid through the pipe. The duct may taper. Water pressure inside the duct may be maintained at atmospheric level. The proposed features all contribute to a pressure free velocity based system. 1. A hydropower installation , comprisinga water supply and an energy generating station, where the water supply is at a higher vertical level than the energy generating station; anda duct extending between the water supply and the energy generating station,wherein the energy generating station of the hydropower installation is configured based on high water velocity and low pressure.2. The hydropower installation according to claim 1 , wherein the duct comprises plastic pipes.3. The hydropower installation according to claim 2 , wherein the plastic of the plastic pipes comprises at least one material from a group comprising Glass Reinforced Polyester (GRP) claim 2 , and High Density Polyethylene (HDPE).4. The hydropower installation according to claim 1 , wherein the duct is arranged on a support and enclosed by an embedment claim 1 , wherein at least one of the support and the embedment comprises a foam material.5. The hydropower installation according to claim 4 , wherein the foam material is selected from a group comprising: open Polyurethane (PU) foam; closed Polyurethane ( ...

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11-01-2018 дата публикации

ROTARY AIDED CONJUNCTIVE ENERGY SYSTEM

Номер: US20180010572A1
Автор: LOMERSON ROBERT B.
Принадлежит:

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 ...

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14-01-2021 дата публикации

WAVE FORCE GENERATION SYSTEM AND CONTROLLING METHOD THEREFOR

Номер: US20210010451A1
Принадлежит: INGINE, INC.

Disclosed are a wave force generation system for producing electric energy by a hydraulic circuit and a controlling method. The wave force generation system comprises a power conversion portion including a hydraulic cylinder which generates a hydraulic pressure by six degrees-of-freedom motion of a moving object floating on waves, wherein: when force is applied to the hydraulic cylinder in one direction thereof, the power conversion portion makes a fluid flow along a first path so as to produce electric energy; and when force is applied to the hydraulic cylinder in the other direction thereof, the power conversion portion makes the fluid flow through second path which makes the fluid bypass and flow in a direction opposite to the first path, whereby the fluid in the second path meets the first path and thus can produce electric energy. 1. A wave force generation system comprising:a power conversion portion comprising a hydraulic cylinder configured to generate a hydraulic pressure by a six degrees-of-freedom motion of a movable object floating on waves,wherein when a force is applied to the hydraulic cylinder in one direction thereof, the power conversion portion allows a fluid to flow along a first path, to produce electric energy, andwherein when a force is applied to the hydraulic cylinder in another direction thereof, the power conversion portion allows the fluid to flow through a second path that allows the fluid to bypass and flow in a direction opposite to the first path, and the second path is merged with the first path, to produce electric energy.2. The wave force generation system of claim 1 , wherein a plurality of tensile force transmission members connected to at least three portions of the movable object are included.3. The wave force generation system of claim 2 , whereineach of the tensile force transmission members comprises a first driving portion configured to drive the hydraulic cylinder, and a restoring force transmission portion,when a tensile ...

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14-01-2016 дата публикации

POWER PLANT COMPRISING A STRUCTURE AND A VEHICLE

Номер: US20160013703A1
Принадлежит: Minesto AB

The invention relates to a power plant for producing electrical power. The power plant comprises a vehicle comprising at least one wing arranged to be secured to a structure by means of at least one tether. The vehicle is arranged to move with a varying speed over a predetermined trajectory by means of a fluid stream passing the wing. The power plant comprises an element arranged to change or allow change of the distance between the vehicle and the structure continuously over or during parts of the predetermined trajectory, thereby reducing the variation in speed of the vehicle over the predetermined trajectory and/or allowing electrical power to be generated from the variation in distance by means of a transducer arranged to be attached to the power plant. The advantage of the invention is that an increased efficiency is obtainable for the power plant. 1119232982732711339297272910101. Power plant () for producing electrical power , the power plant () comprising a structure () and a vehicle () comprising at least one wing () , the vehicle () being arranged to be secured to the structure () by means of at least one tether (); the vehicle () being arranged to move in a predetermined trajectory () by means of a fluid stream passing the wing () , the vehicle () being arranged to move with a varying speed over the predetermined trajectory () , characterized in that the power plant () comprises an element () arranged to be attached between the wing () and the structure () , the element being arranged to change or allow change of the distance between the vehicle () and the structure () continuously over or during parts of the predetermined trajectory () , reducing the variation in speed of the vehicle () over the predetermined trajectory () , and/or allowing electrical power to be generated from the variation in distance between the vehicle () and the structure () by means of a transducer () , the transducer () being arranged to be attached to the power plant ().211013297. ...

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21-01-2021 дата публикации

TURBOMACHINE MODULE FOR A VARIABLE PITCH BLADE PROPELLER AND TURBOMACHINE COMPRISING IT

Номер: US20210017949A1
Принадлежит: SAFRAN AIRCRAFT ENGINES

A turbomachine module with a longitudinal axis, the module comprising: a rotary casing rotatable around the longitudinal axis and arranged to carry a propeller provided with a plurality of blades; a system for changing the pitch of the blades of the propeller comprising: a control, and a mechanism for varying the pitch of the blades of the propeller connecting these blades to the control, wherein the control comprises a rotary actuator comprising a control body and a reference body which is integral with the rotary casing, and wherein the mechanism for varying the pitch comprises a synchronization ring which is driven in rotation around the longitudinal axis by the control body and which is guided in rotation on the rotary casing, the synchronization ring being connected to the blades. 1. A turbomachine module with a longitudinal axis , the module comprising:a rotary casing rotatable around the longitudinal axis and arranged to carry a propeller provided with a plurality of blades; and a control, and', 'a variable pitch mechanism for varying the pitch of the blades of the propeller connecting these blades to the control,, 'a system for changing the pitch of the blades of the propeller comprisingwherein said control comprises a rotary actuator comprising a control body and a reference body which is integral with said rotary casing, and wherein said variable pitch mechanism for varying the pitch comprises a synchronization ring which is driven in rotation around the longitudinal axis by said control body and which is guided in rotation on said rotary casing by a guide, said synchronization ring being intended to be connected to said blades, the rotary actuator being offset axially with respect to the synchronization ring.2. The module according to claim 1 , wherein the synchronization ring is at least partly surrounded by means for positioning said blades fixed to the rotary casing.3. The module according to claim 1 , wherein the synchronization ring comprises a ...

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25-01-2018 дата публикации

HYDROELECTRIC POWER GENERATOR USING EBB AND FLOW OF SEAWATER

Номер: US20180023537A1
Автор: OH Taekgeun
Принадлежит:

The present invention relates to a hydroelectric power generator using ebb and flow of seawater. More particularly, the hydroelectric power generator is able to continuously generate power through high tide and low tide created according to a tidal difference that continuously occurs, while being submerged in seawater, using a marine current that flows fast. The hydroelectric power generator is also able to utilize eco-friendly energy that does not require a reservoir by adjusting the amount of inflow of seawater and to be installed at various places, while being varied in size, as necessary. 1. A hydroelectric power generator using ebb and flow of seawater , the hydroelectric power generator comprising:{'b': 100', '30', '70', '33', '32', '10', '11', '30', '13', '12', '23', '20', '21', '12', '20', '21', '10', '12', '10', '40', '30', '70', '41', '20', '10, 'a flood power generation unit () including: a lower flow guide unit () disposed between side guides () and having a blade guide () at a front end of an upper flow guide (); a turbine () disposed on a turbine shaft () over the lower flow guide unit (), having reinforcing grooves () formed in blade seats () formed on an outer side of the turbine such that reinforcing portions () of blades () fit to two sides, and having fixed shafts () disposed through the blade seats (); the blades () fitted on the fixed shafts () passing through the turbine () in the blade seats () to be deployed by seawater and rotate the turbine (); and an upper flow guide unit () disposed over the lower flow guide unit () between the side guides () and having a power generation guide () in which the blades () on the outer side of the turbine () are deployed and moved; and'}{'b': 200', '30', '70', '33', '32', '10', '11', '30', '13', '12', '23', '20', '21', '12', '20', '21', '10', '12', '10', '40', '30', '70', '41', '20', '10, 'i': a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a, 'an ebb power generation unit () including: an upper flow guide unit () ...

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25-01-2018 дата публикации

HYDROELECTRIC POWER GENERATOR FOR RIVER

Номер: US20180023539A1
Автор: OH Taekgeun
Принадлежит:

The present invention relates to a hydroelectric power generator for a river. More particularly, the hydroelectric power generator for a river, while being installed in a river or in water stored by a dam, can induce the flow velocity of water inside a turbine system and produce power using the rotating turbine, can use environment-friendly energy by controlling the amount of water flowing inside, can be installed at various places including a place with a small head drop, and can be configured in various sizes. 161626030706162333210113012202110121040706230412010. A hydroelectric power generator for a river , comprising: height adjusters ( , ) disposed at a predetermined distance from each other on a concrete base (); a lower flow guide unit () disposed between side guides () of which a front and rear thereof are connected to the height adjusters ( , ) , and having a blade guide () at front end of a flow guide (); a turbine () disposed on a turbine shaft () over the lower flow guide unit () and having blade seats () on an outer side thereof; blades () disposed on fixed shafts () passing through the turbine () in the blade seats () and deployed by a stream to rotate the turbine (); and an upper flow guide unit () disposed between the side guides () connected to the height adjuster () over the lower flow guide unit () and having a power generation guide () along which the blades () on the outer side of the turbine () are deployed and moved ,{'b': 41', '10', '20', '41', '20', '10', '20', '41', '20', '10, 'wherein the power generation guide () is formed at a predetermined distance from the outer side of the turbine () such that while the blades () are moved in a deployed position, velocity heads are generated due to a predetermined gap between the power generation guide () and ends of the blades (), torque is applied to the turbine (), the same amount of water and pressure are applied to the blades () inside the power generation guide (), and water and the blades () ...

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24-01-2019 дата публикации

BUOYANCY-DRIVEN POWER GENERATION APPARATUS

Номер: US20190024624A1
Автор: JEONG Jae Hui
Принадлежит:

The present invention relates to a buoyancy-driven power generation apparatus, which generates electricity by means of water power, gravity, and buoyancy, and differentially supplies fluid according to a water level so as to enable the efficiency of a pump for supplying the fluid to improve. 1. A buoyancy-driven power generation apparatus comprising:{'b': 10', '11, 'a main body housing () having a main body outlet () formed at a lower side thereof and an opened upper portion thereof;'}{'b': 20', '10, 'a buoyant body () provided inside the main body housing ();'}{'b': 30', '11, 'a discharge turbine () provided in a discharge direction of the main body outlet ();'}{'b': 40', '11', '11, 'a storage tank () provided at a lower side of the main body outlet () and storing the fluid discharged from the main body outlet ();'}{'b': 50', '40', '10', '52, 'a pumping pipe () supplying the fluid received in the storage tank to the main body housing () using a pump ();'}{'b': 60', '61', '20', '62', '10', '61, 'a buoyant-driven power generator () including a rack gear () vertically provided at a central portion of the upper surface of the buoyant body () and a pinion gear () provided at the upper portion of the main body housing () to engage with the rack gear (); and'}{'b': 70', '30', '60, 'a power generator () converting rotational energy transmitted from the discharge turbine () and the buoyant-driven power generator () into electric energy.'}22022102021203121. The buoyancy-driven power generation apparatus of claim 1 , wherein the buoyant body () has a hallow shape therein and includes an inlet () through which some of the fluid supplied to the inside of the main body housing flows into the buoyant body (); and a buoyant body outlet () for discharging the fluid flowing into the buoyant body () claim 1 , and a second discharge turbine () is provided in a discharge direction of the buoyant body outlet ().35051. The buoyancy-driven power generation apparatus of claim 1 , wherein ...

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23-01-2020 дата публикации

HYDRAULIC MACHINE HAVING A DEVICE FOR MEASURING THE WATER LEVEL IN THE INTAKE PIPE AND METHOD FOR DRAINAGE

Номер: US20200025166A1
Автор: KIENLE OTTO, STRAUB Jochen
Принадлежит:

A hydraulic machine has a runner, a guide apparatus, a draft tube, and an apparatus for measuring the water level in the region of the draft tube. The apparatus includes a first pressure measuring device, a second pressure measuring device, and a unit for generating differential pressure values. The pressure measuring devices are arranged in such a way that they may detect the pressures applied inside the draft tube and are respectively connected to the unit. The first pressure measuring device is located above the second pressure measuring device, and the unit is configured to generate the difference between the pressures that the pressure measuring devices detect. There is also described a method for dewatering the runner of such a hydraulic machine. 14-. (canceled)5. A hydraulic machine , comprising:a runner, a guide apparatus, and a draft tube;a level detector for measuring a water level in said draft tube, said level detector including a first pressure measuring device, a second pressure measuring device, and a unit for generating differential pressure values;said first and second pressure measuring devices being disposed to detect pressures prevailing inside said draft tube and being connected to said unit;wherein said first pressure measuring device is located above said second pressure measuring device and said unit is configured to generate a difference between the pressures respectively detected by said first and second pressure measuring devices.6. The hydraulic machine according to claim 5 , wherein:said first and second pressure measuring devices are pressure sensors for generating an electrical pressure signal and said first and second pressure sensors are connected to said unit by way of electrical cables; andsaid unit is an electronic unit for calculating an electrical differential pressure signal.7. The hydraulic machine according to claim 5 , wherein said first and second pressure measuring devices respectively comprise a separating membrane and ...

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23-01-2020 дата публикации

DEVICE PROVIDING NON-INERTIAL PROPULSION WHILE CONSERVING PROPELLANT MASS AND METHOD THEREFOR

Номер: US20200025180A1
Автор: LaMuth Henry Lewis
Принадлежит:

Propulsion can be achieved without expelling matter by using a non-inertial subsystem to generate substantial internal Coriolis recoil forces that supply propulsion. A unique subsystem has been designed in which mass (fluids) is discretely injected radially into a non-inertial system comprising arrays of spinning radially-oriented vanes mounted on thin discs forming a stacked array of rectangular cross section tubes lock onto a common spinning shaft. In the preferred embodiment of the invention, the mass (fluid) is input into the tubes at the circumference of the spinning system by radially injecting the fluid at high velocity onto one tube at a time at the outer end of the tubes. The mass is then centrifugally slowed as it travels in toward the axis and leaves the system at a very low velocity near the axis of rotation. During the retarded motion, the tubes experience a continuous Coriolis recoil force that is opposite the rotation direction at each instantaneous location to which the mass has been centrifugally decelerated. The resultant non-linear Coriolis reaction or recoil is constrained to acting through the axis of rotation of the spinning discs by keeping the rotation rate constant. All Coriolis recoil forces act through the center of rotation no matter where in a tube a mass has been propelled as long as the rotation rate is held constant. The integrated reactive Coriolis force from each injected fluid mass is non-linear and orders of magnitude larger than occurs in commercial symmetric rotating-vane systems. The net integrated reactive force acting on the axis of rotation of the subsystem produces a propulsive force. The injected and retarded fluids are captured near the rotation axis and recirculated back to the input injectors. By conserving the reaction mass, a closed propulsion system can be designed that only depends on the availability of power from a variety of sources. 1. A system for converting torque into a non-inertial propulsion force while ...

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29-01-2015 дата публикации

UNDERWATER POWER GENERATOR WITH DUAL BLADE SETS

Номер: US20150028589A1

A power generation apparatus for generating power from water flows is described. The power generation apparatus includes: a generator; a first blade set operatively mounted to the generator for rotation in a selected direction in response to flowing water from a selected direction; a second blade set operatively mounted to the generator for rotation and operatively connected to the first blade set, the second blade set being disposed coaxially with, and downstream of or in a wake zone of, the first blade set; wherein the generator is adapted to be driven by at least one of the blade sets, the generator being disposed generally coaxially between the first and second blade sets. 1. A power generation apparatus for generating power from water flows , the power generation apparatus , comprising:a generator,a first blade set operatively mounted to the generator for rotation in a selected direction in response to flowing water from the selected direction; anda second blade set operatively mounted to the generator for rotation, the second blade set being disposed coaxially with, and at least one of downstream of or in a wake zone of, the first blade set, the second blade set being operatively coupled to the first blade set,the generator configured to be driven by at least one of the first blade set or the second blade set, the generator further being disposed substantially coaxially between the first blade set and the second blade set and wherein the first and second blade sets are operatively coupled together.2. The power generation apparatus of claim 1 , wherein the second blade set rotates in the same direction as the first blade set when the first blade set rotates in the selected direction.3. The power generation apparatus of claim 1 , further comprising:at least one of a clutch or braking arrangement configured to at least one of (1) selectively uncouple or (2) operatively disconnect the first blade set from the second blade set.4. The power generation apparatus of ...

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02-02-2017 дата публикации

Submersible electrical wicket gates operator

Номер: US20170030324A1
Принадлежит: Franklin Empire

A system and method for electrically controlling a submersible hydro-electric production system for avoiding leakage of oil and contaminants used in the existing hydraulic systems. The system comprises one or more submersible electrical actuators operably connected to a gate operating ring which in turn is connected to a plurality of wicket gates in the turbine. Each submersible electrical actuator comprises an electrical motor connected to a push-pull rod which is configured to transform the rotation movement received at a first end thereof to a linear movement at a telescoping end opposite the first end for rotating the gate operating ring to a desired position. The electrical actuator includes a waterproof structure which houses the electrical motor and the push-pull rod and at the same time allows for a telescoping movement of the push-pull rod for rotating the gate operating ring.

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01-05-2014 дата публикации

MARINE CURRENT POWER PLANT AND A METHOD FOR ITS OPERATION

Номер: US20140117667A1
Принадлежит: VOITH PATENT GMBH

The invention relates to a method for operating a marine current power plant, comprising a water turbine with several rotor blades arranged as buoyancy rotors, an electric generator which is driven at least indirectly by the water turbine, wherein the water turbine is guided for power limitation in an overspeed range above a power-optimal tip speed ratio. The water turbine is adjusted to the immersion depth of the marine current power plant in such a way that cavitation occurs on at least one rotor blade section in the overspeed range from a cavitation tip speed ratio threshold which lies below a tip speed ratio associated with a runaway speed, and the water turbine is operated for load limitation at tip speed ratios which lie above the cavitation tip speed ratio threshold. 1. A method for operating a marine current power plant , comprising the steps of:providing a water turbine with a plurality of rotor blades arranged as buoyancy rotors;driving an electric generator at least indirectly by said water turbine;guiding said water turbine for power limitation in an overspeed range above a power-optimal tip speed ratio;adjusting said water turbine to an immersion depth of the marine current power plant so that cavitation occurs on at least one rotor blade section in the overspeed range from a cavitation tip speed ratio threshold which lies below a tip speed ratio associated with a runaway speed; andoperating said water turbine for load limitation at tip speed ratios which lie above the cavitation tip speed ratio threshold.2. The method according to claim 1 , wherein the tip speed ratio is set for load limitation by one of the control and feedback control of a generator torque braking said water turbine.3. The method according to claim 1 , wherein said at least one rotor blade section on which cavitation occurs is spatially limited for the tip speed ratios adjustable for limiting the load.4. The method according to claim 3 , wherein said at least one rotor blade section ...

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30-01-2020 дата публикации

SYSTEM AND METHOD FOR CONTROLLING WAVE POWER GENERATION FACILITIES

Номер: US20200032764A1
Автор: SUNG Yong Jun
Принадлежит:

A power generation facility control system includes a power transmitter including a connection member configured to transfer kinetic energy of a buoyant body that moves by wave energy, a motion converter configured to convert the kinetic energy transferred from the power transmitter to rotational kinetic energy of a rotating body, a first route configured to receive the rotational kinetic energy from the motion converter, and to generate electric power, and a second route configured to receive and store the rotational kinetic energy from the motion converter, or to transfer, to the motion converter, rotational kinetic energy that is restored using stored energy. 1. A system for controlling a power generation facility , the system comprising:a power transmitter comprising a connection member configured to transfer kinetic energy of a buoyant body that moves by wave energy;a motion converter configured to convert the kinetic energy transferred from the power transmitter to rotational kinetic energy of a rotating body;a first route configured to receive the rotational kinetic energy from the motion converter, and to generate electric power; anda second route configured to receive and store the rotational kinetic energy from the motion converter, or to transfer, to the motion converter, rotational kinetic energy that is restored using stored energy.2. The system of claim 1 , wherein the first route comprises a power generator configured to generate alternating current (AC) power using the rotational kinetic energy.3. The system of claim 2 , further comprising:a power generation controller configured to control output AC power of the power generator using a 3-phase current rectification scheme.4. The system of claim 1 , wherein the second route is configured to transfer claim 1 , to the motion converter claim 1 , the rotational kinetic energy that is restored using the stored energy when a tension of the connection member is less than or equal to a reference value or ...

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04-02-2021 дата публикации

Survivability of Wave Energy Convertors

Номер: US20210033061A1
Принадлежит: OSCILLA POWER, INC.

A wave energy conversion (WEC) system includes a float body, a heave plate, a tether, and a controller. The tether couples the heave plate to the float body. The controller controls the tether between survivability modes. Each survivability mode adjusts a tension and/or length of the tether. 1. A wave energy conversion (WEC) system comprising:a float body;a heave plate;at least one tether to couple the heave plate to the float body; anda controller to control the at least one tether between survivability modes, wherein each survivability mode adjusts a tension and/or length of the at least one tether.2. The system of claim 1 , wherein the controller is further configured to at least partially submerge the float body below a surface of a body of water in response to a determination of a survivability event.3. The system of claim 2 , wherein the survivability event comprises a change in wave conditions.4. The system of claim 2 , wherein the survivability event comprises an anticipated change in wave conditions.5. The system of claim 2 , wherein the float body comprises at least one ballast chamber.6. The system of claim 5 , further comprising a compressor to pump air into the at least one ballast chamber to evacuate water from the at least one ballast chamber.7. The system of claim 1 , wherein the controller is further configured to control the at least one tether in response to a determination of a survivability event.8. The system of claim 5 , wherein the survivability event comprises a change in wave conditions.9. The system of claim 5 , wherein the survivability event comprises an anticipated change in wave conditions.10. The system of claim 1 , wherein the heave plate comprises an asymmetric heave plate. This application is a continuation of U.S. application Ser. No. 16/399,898, filed Apr. 30, 2019, which claims the benefit of U.S. Provisional Application No. 62/664,489, filed on Apr. 30, 2018. Each of these applications is incorporated by reference herein in ...

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04-02-2021 дата публикации

TURBINE CONTROL

Номер: US20210033062A1
Принадлежит:

The present invention provides a turbine control system and method. The turbine control system includes at least one control means accommodated on a turbine rotor wherein the control means is actuated by a controller in a first or second direction on a plane of the rotor turbine to control a rate of change of moment of inertia of the turbine and thereby controlling the operation of the turbine. The invention also provides a turbine farm including a plurality of turbines operating to provide a maximum and stable power output. The farm includes a master controller configured for controlling the operation of each of the plurality of turbines and individual controller of the turbines efficiently. 1. A control method for operating a turbine , the method comprising the steps of:actuating at least one control means coupled to the turbine in a first direction when the turbine operates above a rated power output on receipt of excess energy wherein a first portion of the excess energy is stored as energy of the actuated control means;storing a second portion of the excess energy in at least one storage means, andactuating at least one control means in a second direction by the stored energy when the turbine operates below the rated power output, wherein the at least one control means is actuated in the first direction or the second direction to control the rate of change of moment of inertia of the turbine.2. The method of wherein a controller encoded with instructions enabling the controller to actuate and control position claim 1 , speed and acceleration of the at least one control means thereby controlling the rate of change of moment of inertia (dI/dt) of the turbine in order to control a net torque acting on a drive train of the turbine.3. The method of wherein the at least one control means is actuated to move in the rotor plane radially outwards as the first direction or radially inwards as the second direction for providing the turbine a decelerating torque or an ...

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08-02-2018 дата публикации

COMMUTATOR-LESS AND BRUSH-LESS DIRECT CURRENT GENERATOR AND APPLICATIONS FOR GENERATING POWER TO AN ELECTRIC POWER SYSTEM

Номер: US20180038340A1
Автор: Han Kyung Soo
Принадлежит:

Three controls, three variable gear assemblies, an optional hatch or variable propeller pitch, and a variable overlap generator (VO generator), as well as one or more commutator and brushless free direct current generators may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed in a plurality of embodiments useful in wind power generation and water renewable energy generators for any of tidal and ocean current or wave conditions. Two Transgear™ assemblies side-by-side and sharing the same central shaft may comprise a constant speed motor control, produce required constant frequency and voltage and be reduced in part count and complexity. The variable overlap generator of a marine hydrokinetic or wind power generator may be used as a low torque generator, a high power-rated generator or a control in these applications and may generate more electric power than a conventional fixed power generator (the rotor axially aligned to overlap the stator in a conventional manner) over a wider input range. An electromotive force (EMF) embodiment generates alternating current at constant frequency and voltage in varying wind and water speed conditions. 1. A marine hydrokinetic electric or wind power generator comprisinga gearbox coupled to one of a propeller shaft and a waterwheel shaft, the gearbox comprising magnetic gears for slipping in the event of one of withstanding bursts of wind and water flow energy,a direct current generator which comprises no commutator or brush and generates electromotive force,a mechanical rotary frequency converter comprising three variables, responsive to one of a waterwheel shaft rotation and a propeller rotation shaft, the mechanical rotary frequency converter comprising at least one spur/helical gear assembly having equally spaced sets of planetary gears of a carrier and surrounding at least one sun gear ...

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08-02-2018 дата публикации

FLUID TURBINE SYSTEMS

Номер: US20180038345A1
Принадлежит:

Various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy. The turbine system can have a blade assembly. The blade assembly can have a plurality of blades rotatable about an axis. The turbine system can have a concentrator positionable upwind and in front of a return side of the blade assembly. The concentrator can define a convex surface facing the wind. The turbine system can also have a variable concentrator positionable upwind of a push side of the blade assembly. The variable concentrator can be adjustable between a first position and a second position, the variable concentrator being capable of deflecting more wind toward the turbine in the first position than in the second position. 1. A fluid turbine system , comprising:a turbine comprising blades rotatable about an axis, the blades defining a window along a substantial portion of a height of the blades, wherein a first plane parallel with and intersecting the axis divides the space surrounding the turbine into a return side and a push side opposite the return side, the turbine configured to rotate generally in an upstream direction on the return side and generally in a downstream direction on the push side relative to a fluid flowing nominally parallel to the plane; anda concentrator positionable upstream of at least a portion of the turbine and at least partially or completely on the return side, the concentrator comprising a first curved surface portion configured to extend from a first position upstream of the turbine to a second position further upstream of the turbine and further into the return side, wherein the first curved surface portion is configured to be convex facing an upstream direction of the fluid flow, the first curved surface portion positionable to deflect at least some fluid toward the push side, the concentrator further positionable to create a relative vacuum to draw at least some fluid away ...

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07-02-2019 дата публикации

HYDRAULIC ROTARY DRIVE

Номер: US20190040867A1
Автор: Chen Liang
Принадлежит:

A hydraulic rotary drive includes a stator and an impeller rotatably connected to the stator. The stator has a liquid chamber defining a liquid inlet, a liquid outlet, and a flow circuit extending between the liquid inlet and the liquid outlet. The impeller is rotatably has a plurality of butterfly blades positioned in the flow circuit, and a rotation axis. Each butterfly blade extends radially away from the rotation axis, and includes first and second wings that are rotatable relative to each other about a radial axis between an open position and a closed position. 1. A hydraulic rotary drive comprising:a stator having a liquid chamber defining a liquid inlet, a liquid outlet, and a flow circuit extending between the liquid inlet and the liquid outlet; andan impeller rotatably connected to the stator, the impeller having a plurality of butterfly blades positioned in the flow circuit, and a rotation axis,wherein each butterfly blade extends radially away from the rotation axis, and includes first and second wings that are rotatable relative to each other about a radial axis between an open position and a closed position.2. The hydraulic rotary drive of claim 1 , wherein:each of the first and second wings has a liquid drive surface,in the open position, the liquid drive surfaces of the first and second wings is oriented to promote energy exchange with liquid in the flow circuit, andin the closed position, the liquid drive surfaces of the first and second wings is oriented to inhibit energy exchange with liquid in the flow circuit.3. The hydraulic rotary drive of claim 1 , wherein:in the open position, each butterfly blade has a first height parallel to the rotation axis, andin the closed position, each butterfly blade has a second height parallel to the rotation axis and that is less than the first height.4. The hydraulic rotary drive of claim 3 , wherein:the second height is less than one quarter of the first height5. The hydraulic rotary drive of claim 1 , wherein: ...

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06-02-2020 дата публикации

Improvements to Hydraulic Machines During Grid Disconnections

Номер: US20200040866A1
Принадлежит:

Installation for converting hydraulic energy into electrical energy, provided with a fixed speed hydraulic machine comprising a pump-turbine () linked to a generator () by a shaft. 1. A method for limiting the rotational speed of a fixed speed hydraulic machine comprising a generator following a disconnection of the hydraulic machine from an electricity grid , the method comprising the steps of:{'b': 20', '30, 'a) detecting a disconnection of the generator () from the grid (); and'}{'b': 20', '34', '35, 'b) connecting the generator () to an electrical torque actuator () by switching electrical torque actuator connection means () to a conducting state.'}212-. (canceled) The invention relates to a method of command of a hydraulic machine and more particularly of a reversible hydraulic machine with S-characteristics. Typical hydraulic machines with S-characteristics are a variety of hydro-power plants that have a reversible pump-turbine that exhibits S-shaped characteristics in a turbine operation region. The invention also concerns an installation for converting hydraulic energy into electrical energy, in which this method can be implemented.Reference is first made to which represents an installation for converting hydraulic energy into electrical energy with S-characteristics comprising a hydraulic machine. In the example, this hydraulic machine is a pump-turbine that uses, in a turbine mode, hydraulic energy to set a shaft in rotation. The shaft is coupled to the rotor of a generator having an alternator that converts mechanical energy of the rotating rotor into electrical energy.Here-below, the functioning of the pump-turbine is described in the turbine mode. The pump-turbine includes a volute that is supported by concrete blocks and . For example, a non-represented penstock extends between a non-represented upstream reservoir and the volute . This penstock generates a forced water flow F to power the machine , said water flow is released to a non-represented ...

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19-02-2015 дата публикации

HYDROSTATIC ENERGY RECOVERY SYSTEM AND METHOD

Номер: US20150047332A1
Принадлежит:

A system and method for converting pressure differentials to electricity is disclosed. Initially, a first chamber is empty and a second chamber holds compressed air/fluid. When the device is disposed in the large bodies of water, due to pressure difference inside the first chamber and the ambient pressure, water fills the first chamber. As the water passes through the first chamber, it turns the turbine or creates pressure difference in transducer to produce electricity. The device descends itself in the deeper water column due to added water in first chamber. When the device obtains equilibrium, the compressed air/fluid from second chamber is allowed to flow to the first chamber to evacuate the filled water. The evacuating water again turns the turbine or creates pressure difference in transducer to produce electricity. After evacuation of water, the device will ascend itself to a shallower depth and the process repeats. 1. A device for converting pressure differentials to electricity in large bodies of water , comprising:a first chamber fitted with a first valve and a turbine, wherein the first chamber is disposed to fill or vent a first fluid due to a pressure difference between the first chamber and an ambient, through the first valve, such that the ingress or egress of the first fluid turns the turbine to produce a charge;a second chamber fitted with a second valve and configured to hold a second fluid in compressed form, wherein the second valve allows the second fluid to transfer from the second chamber to the first chamber to create a pressure difference at a deeper depth;a fluid compressor configured to compress the second fluid into the second chamber;at least one electrical storage device configured to receive the charge from the turbine,a sensor configured to detect a pressure inside the first chamber; andat least one controller configured to operate first valve and/or second valve based on the pressure sensed by the sensor,wherein the pressure exerted ...

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15-02-2018 дата публикации

WAVE-WIND MUTUALLY SUPPLEMENTING POWER SUPPLY SYSTEM FOR CONTINUOUS POWER GENERATION

Номер: US20180045167A1
Принадлежит:

A wave-wind mutually supplementing power supply system for continuous power generation is disclosed. The system of the present invention has a wave kinetic energy module (), which comprises a wave energy harnessing unit (), a transmission shaft (), a generator unit (), a torque adjusting unit () and an automatic control unit (). The wave kinetic energy module () is disposed on/in a sea and may generate electricity through the motion of sea water. The electricity so generated is combined with a wind power generation device to provide continuous power generation. The automatic control unit () has a microprocessor () and a sea water motion sensor unit () so as to adjust the torque of the transmission shaft and control the activation of the generator unit according to the motion of the sea water. 1. A wave-wind mutually supplementing power supply system for continuous power generation , comprising:a wave kinetic energy module, which is disposed on/in a sea and may generate electricity through the motion of sea water, characterized in that the electricity so generated is combined with a wind power generation device for continuous power generation, and characterized in that:the wave kinetic energy module comprises a wave energy harnessing unit, a transmission shaft, a generator unit, a torque adjusting unit and an automatic control unit, wherein the wave energy harnessing unit may harness the kinetic energy generated through the motion of sea waves and the transmission shaft may transmit the kinetic energy harnessed by the wave energy harnessing unit to the generator unit, and wherein the generator unit may receive the kinetic energy transmitted from the transmission shaft and convert it to electricity and the torque adjusting unit is disposed on the transmission shaft so as to adjust the torque of the latter, and wherein the automatic control unit has a microprocessor and a sea water motion sensor unit so as to control the activation of the generator unit and adjust the ...

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13-02-2020 дата публикации

SYSTEM AND METHOD FOR CLOSED-LOOP DISSOLVED OXYGEN MONITORING AND CONTROL

Номер: US20200048124A1
Принадлежит:

A computer-implemented method of closed-loop dissolved oxygen monitoring and control at a hydroelectric plant includes: regulating at least one aeration valve coupled to a turbine using pattern recognition; wherein a target parameter for the regulating is a dissolved oxygen concentration of water downstream of the hydroelectric plant. The dissolved oxygen concentration may be at least 5.0 milligrams per liter. The pattern recognition may be performed using a neural network. 1. A computer-implemented method of closed-loop dissolved oxygen monitoring and control at a hydroelectric plant comprising:regulating at least one aeration valve coupled to a turbine using pattern recognition;wherein a target parameter for the regulating is a dissolved oxygen concentration of water downstream of the hydroelectric plant.2. The method of claim 1 , wherein the dissolved oxygen concentration is at least 5.0 milligrams per liter.3. The method of claim 1 , wherein the pattern recognition is performed using a neural network.4. The method of claim 1 , wherein the regulating sets a degree of opening the at least one aeration valve.5. The method of claim 1 , wherein the pattern recognition comprises at least one machine learning algorithm.6. The method of claim 5 , wherein the at least one machine learning algorithm is provided with data inputs including at least one of:(a) dissolved oxygen concentration, water level, and water temperature upstream of the hydroelectric plant;(b) dissolved oxygen concentration, water level, and water temperature downstream of the hydroelectric plant;(c) unit power output and quality;(d) required dissolved oxygen concentration;(e) atmospheric temperature and humidity; and(f) time of day and day of year.7. The method of claim 6 , further comprising:analyzing the data inputs using a four layer, four output neural network that outputs an optimal valve position of each of four intake air valves that minimizes efficiency loss while ensuring the hydroelectric ...

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13-02-2020 дата публикации

METHODS AND SYSTEMS FOR WAVE ENERGY GENERATION PREDICTION AND OPTIMIZATION

Номер: US20200049125A1

Embodiments for managing a wave energy converter (WEC) device by one or more processors are described. At least one environmental characteristic associated with a WEC device in a body of water is received. A prediction of wave conditions on the body of water is calculated based on the at least one environmental characteristic. A signal representative of the prediction of wave conditions is generated. 1. A method , by one or more processors , for managing a wave energy converter (WEC) device comprising:receiving at least one environmental characteristic associated with a WEC device in a body of water;calculating a prediction of wave conditions on the body of water based on the at least one environmental characteristic; andgenerating a signal representative of the prediction of wave conditions.2. The method of claim 1 , wherein the calculating of the prediction of wave conditions is performed with a computing system onboard the WEC device.3. The method of claim 2 , wherein the computing system includes a machine learning module.4. The method of claim 3 , wherein the machine learning module utilizes a multi-layer perceptron.5. The method of claim 1 , further comprising controlling the WEC device based on the prediction of wave conditions.6. The method of claim 5 , wherein the WEC device includes a power take-off (PTO) claim 5 , and the controlling of the WEC device includes adjusting a resistance exhibited by the PTO.7. The method of claim 1 , wherein the at least one environmental characteristic is associated with at least one of winds and water currents.8. A system for managing a wave energy converter (WEC) device comprising: receives at least one environmental characteristic associated with a WEC device in a body of water;', 'calculates a prediction of wave conditions on the body of water based on the at least one environmental characteristic; and', 'generates a signal representative of the prediction of wave conditions., 'at least one processor that'}9. The system ...

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15-05-2014 дата публикации

METHOD AND APPARATUS FOR VALIDATING A FIELD DEVICE IN A CONTROL SYSTEM

Номер: US20140130874A1
Принадлежит: FISHER CONTROLS INTERNATIONAL LLC

A system and method for validating the availability and operability of a field device in a process plant is provided. A diagnostic apparatus includes a processor coupled to the field device wherein a diagnostic check is executed to remotely determine the availability and operability of the field device. 1. A liquid level control system comprising:a movable assembly including a bar, the bar of the movable assembly including a proximate end and a distal end;a displacer attached to the distal end of the bar;an actuator operatively connected to the movable assembly;a processor coupled to the actuator and capable of moving the displacer via the movable assembly;a sensor including an input and an output, the input of the sensor operatively coupled to the movable assembly for receiving an input signal representative of a characteristic of the displacer or an operating environment, the output of the sensor operatively coupled to the processor for providing an output signal associated with the input signal;a memory coupled to the processor;an actuating module stored on the memory, which when executed on the processor, actuates the actuator;an output device coupled to the processor; andan exhibiting module stored on the memory, which when executed on the processor, exhibits the output signal of the sensor on the output device.2. The level control system of claim 1 , wherein the output signal of the sensor includes a discrete value representative of the characteristic of the displacer or the operating environment.3. The level control system of claim 2 , wherein the discrete value indicates a first state corresponding to the displacer positioned below a predetermined level or a second state corresponding to the displacer positioned at or above the predetermined level.4. The level control system of claim 1 , wherein the output signal of the sensor includes a continuous value representative of the characteristic of the displacer or the operating environment.5. The level control ...

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15-05-2014 дата публикации

Natural-frequency adjusting mechanism for wave-power generator

Номер: US20140132003A1
Принадлежит: University of Tokyo NUC

Provided is a wave-power generator capable of adjusting a natural period (natural frequency) in response to a changing wave period. The wave-power generator includes a weight that is installed in a floating body via a spring and that linearly reciprocates in response to a fluctuation of a water surface and a generator that generates power by being driven based on the linear reciprocating motion of the weight. An additional-mass body for adding a mass to the mass of the weight is further included.

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03-03-2016 дата публикации

ARRANGEMENT FOR CONTROLLING WATER FLOW AT EDGE OF RECIPROCATING PANEL ELEMENT OF A WAVE ENERGY RECOVERY UNIT

Номер: US20160061181A1
Принадлежит: AW-ENERGY OY

This invention relates to an arrangement for controlling water flow at an edge of a reciprocating panel element of a wave energy recovery unit equipped with at least a control system, in which arrangement the panel element is hinged onto the base at the bottom of the sea with the help of support structures and support shafts. The arrangement comprises adjustable water flow adjustment means at least at one edge of the panel element. 1. Arrangement for controlling water flow at an edge of a reciprocating panel element of a wave energy recovery unit equipped with at least a control system , in which arrangement the panel element is hinged onto the base at the bottom of the sea with the help of support structures and support shafts , wherein the arrangement comprises adjustable water flow adjustment means at least at one edge of the panel element.2. Arrangement for controlling water flow according to claim 1 , wherein the arrangement comprises actuators for changing a position and/or angle of the water flow adjustment means at the edge of the panel element.3. Arrangement for controlling water flow according to or claim 1 , wherein the actuators save been arranged to move the water flow adjustment means linearly outwards from the edge of the panel element and linearly towards the edge of the panel element.4. Arrangement for controlling water flow according to or claim 1 , wherein the water flow adjustment means are equipped with a rotating shaft and the actuators have been arranged to rotate the water flow adjustment means at the edge of the panel element around their rotating shafts.5. Arrangement for controlling water flow according to claim 1 , wherein the upper part of the water flow adjustment means is symmetrical in its cross-section.6. Arrangement for controlling water flow according to claim 1 , wherein the upper part of the water flow adjustment means is asymmetrical in its cross-section.7. Arrangement for controlling water flow according to claim 1 , wherein ...

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22-05-2014 дата публикации

INFINITELY VARIABLE PUMPS AND COMPRESSORS

Номер: US20140137676A1
Автор: Han Kyung Soo
Принадлежит: DIFFERENTIAL DYNAMICS CORPORATION

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. Various embodiments of an infinitely variable pump or compressor are described. 1. An infinitely variable pump/compressor assembly , the infinitely pump/compressor assembly comprisinga spur gear transgear assembly with cam control, the infinitely variable pump/compressor assembly having an input shaft for driving one of a pump and a compressor, the cam control having a drive and a control, the control having a cam control sleeve surrounding a cam control shaft having first and second inner cams integral with or attached to the cam control shaft and first and second outer cams of varying eccentricity, the cam control shaft driving the pump or compressor.2. The infinitely variable pump/compressor assembly of for driving a reciprocating pump claim 1 , the reciprocating pump having first and second reciprocating pistons and the spur gear transgear assembly and cam control being contained within a housing.3. The infinitely variable plump/compressor assembly of claim 2 , each reciprocating piston being driven by an associated driver comprising an inner cam and an outer cam claim 2 , each reciprocating piston comprising a piston driver claim 2 , a piston arm and a piston.4. The infinitely variable pump/compressor assembly of further comprising a worm control for a worm gear claim 2 , the worm gear being integral with or attached to a sleeve ...

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12-03-2015 дата публикации

Apparatus for downhole power generation

Номер: US20150068298A1
Принадлежит: Halliburton Energy Services, Inc.

Apparatus is provided for use in power generation, including a fluid-flow-driven power generator for use in a fluid-containing pipe such as a drill pipe as used in oil and gas exploration and extraction. Parts of the generator are removable from the pipe—for example while a drill pipe is downhole within a drilling well—to leave a clear through bore for survey and fishing operations and to enable replacement of the removed parts. The flow-driven generator comprises an impeller connected to a magnet assembly to rotate the magnet assembly when fluid flows past the impeller. This causes relative movement between the magnet assembly and an adjacent electrical coil assembly, the relative movement and magnetic coupling generating an electrical current in the coil assembly. This generated electrical current is used to power electrical devices within the pipe. 1. An electrical power generator , for use in a fluid-containing pipe , comprising:an annular power generation assembly comprising a fluid-flow-driven impeller connected to one of a magnet assembly or an electrical coil assembly, the magnet assembly and the coil assembly being arranged for magnetic coupling between them and being mounted to enable relative movement between them, such that fluid flowing past the impeller causes relative rotation between the magnet assembly and the coil assembly for the generation of electrical power;a flow controller located closer to the longitudinal axis of the pipe than the annular power generation assembly, which flow controller is detachable from the annular power generation assembly and can be removed to leave an axially-located through bore;a first fluid flow path past the impeller and a second fluid flow path through an aperture of the flow controller, wherein the flow controller includes an adjustment mechanism for adjusting the size of the aperture of the flow controller to control the proportion of the fluid flowing within the pipe that flows past the impeller in the first ...

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28-02-2019 дата публикации

Sea wave energy converter capable of resonant operation

Номер: US20190063395A1

A sea wave energy harvesting system includes a sea wave energy harvesting vessel positioned in the sea. The sea wave energy harvesting system dynamically adapts the motion of the sea wave energy harvesting vessel responsive to the sensed sea wave conditions to more closely align a resonant frequency of the sea wave energy harvesting vessel with the current harmonic motion of the sea waves.

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27-02-2020 дата публикации

SYSTEMS AND METHODS FOR EFFICIENT WATER TURBINE OPERATION

Номер: US20200063708A1
Автор: Grigg Charles Ronald
Принадлежит:

A system includes a water turbine, a plurality of positioning winches coupled to the water turbine and a plurality of positioning cables. An individual positioning cable extends between a fixed point at a first end and the water turbine at a second end and is coupled to a corresponding positioning winch that is configured to extend and retract the individual positioning cable between the fixed point and the water turbine. A plurality of sensors is configured to sense water conditions around the water turbine. A position control system is connected to the plurality of positioning winches and connected to the plurality of sensors. The position control system is configured to position the water turbine using the plurality of positioning winches according to the water conditions sensed by the plurality of sensors. 1. A system comprising:a water turbine;a plurality of positioning winches coupled to the water turbine;a plurality of positioning cables, an individual positioning cable extending between a fixed point at a first end and the water turbine at a second end and coupled to a corresponding positioning winch that is configured to extend and retract the individual positioning cable between the fixed point and the water turbine;a plurality of sensors configured to sense water conditions around the water turbine; anda position control system connected to the plurality of positioning winches and connected to the plurality of sensors, the position control system configured to position the water turbine using the plurality of positioning winches according to the water conditions sensed by the plurality of sensors.2. The system of wherein the plurality of positioning winches are configured in pairs and the position control system is configured to position the water turbine by extending a portion of positioning cable from a first winch of a pair and retracting a corresponding portion of positioning cable from a second winch of the pair.3. The system of wherein the plurality ...

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12-06-2014 дата публикации

POWER GENERATING PLANT AND FLOATING PLANT FOR RIVERS AND CANALS

Номер: US20140159366A1

A power generating and floating plant () over a natural river, a man-made canal or similar for the generation of electricity that comprises: a floating platform () of the Catamaran type with pontoons () that speed up the flow rate () entering into a turbine; a metal gate () between said pontoons () before the turbine; at least one turbine with a central shaft (), wherein said turbine comprises a water wheel () with curved vanes () and at least two supporting disks (), where said curved vanes () rest, and where said supporting disks () comprise a plurality of radial and concentric holes (); and a low-engine speed, permanent magnet generator (). 1. A power generating and floating plant over a natural river , a man-made canal or similar for the generation of electricity COMPRISING:a floating platform of the Catamaran type with pontoons that speed up the flow rate entering into a turbine,a metal gate between said pontoons before the turbine,at least one turbine with a central shaft, where said turbine comprises a water wheel with curved vanes and at least two supporting disks, where said curved vanes rest, and where said supporting disks comprise a plurality of radial and concentric holes; anda low-engine speed, permanent magnet generator.2. The power generating and floating plant according to claim 1 , WHEREIN said platform is fastened to a stabilizing bar fixed to regulating cylinders in at least one side of the river or canal.3. The power generating and floating plant according to claim 2 , WHEREIN said regulating cylinders are inserted in reinforced concrete structures.4. The power generating and floating plant according to claim 3 , WHEREIN said stabilizing bar is fixed to said regulating cylinders through fastening means at the ends of said stabilizing bar claim 3 , where said fastening means can be displaced over said regulating cylinders between two stops.5. The power generating and floating plant according to claim 4 , WHEREIN said regulating cylinders are of ...

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14-03-2019 дата публикации

Method, system and apparatus for operating a hydraulic turbine

Номер: US20190078548A1
Принадлежит:

A method, system and apparatus for operating a hydraulic turbine. A speed adjustment quantity for the hydraulic turbine and a corresponding change in flow quantity are obtained. A rotation speed of the hydraulic turbine is adjusted based on the speed adjustment quantity. A change ratio of the flow quantity with regard to the speed adjustment quantity is determined based on the speed adjustment quantity and the corresponding change in flow quantity. An adjustment manner in which the rotation speed is further adjusted is determined based on the determined based on the determined change ratio of flow quantity. An adjustment manner in which the rotation speed is further adjusted is determined based on the determined change ratio of flow quantity. It enables the hydraulic turbine to track a maximum efficiency operation point under a given power order and water head in real time at a low cost. 1. A method of operating a hydraulic turbine , comprising:obtaining a speed adjustment quantity for the hydraulic turbine and a corresponding change in flow quantity, wherein a rotation speed of the hydraulic turbine is adjusted based on the speed adjustment quantity;determining a change ratio of the flow quantity with regard to the speed adjustment quantity based on the speed adjustment quantity and the corresponding change in flow quantity;determining an adjustment manner in which the rotation speed is further adjusted based on the change ratio.2. The method of claim 1 , wherein the obtaining a corresponding change in flow quantity comprises obtaining a change of opening angle of a guide vane of the hydraulic turbine claim 1 , andwherein the determining a change ratio of flow quantity with regard to the speed adjustment quantity comprises: determining a change ratio of the opening angle of the guide vane with regard to the speed adjustment quantity.3. The method of claim 1 , wherein the determining an adjustment manner further comprises any one or more of:determining the ...

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12-03-2020 дата публикации

Apparatus and Method for Generating Electricity With Pressurized Water and Air Flow Media

Номер: US20200080531A1
Принадлежит: Carroll Hector LLC

A facility for generating electricity, including a water source and a plurality of penstocks adapted for selective flow communication with the water source for delivering water from the water source to a turbine electricity generator. An electricity distribution system is provided having a first component adapted to deliver electricity generated by the turbine electricity generator to an electric grid and an alternative second component adapted to use the electricity to power an air compressor. A compressed air storage reservoir is provided for storing air compressed by the air compressor, including an outlet for selectively delivering the compressed air to the plurality of penstocks according to a predetermined sequence for providing energy to the water contained in the penstock to propel the water from the penstock to the turbine.

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12-03-2020 дата публикации

Method for Orientating the Blades of a Turbine

Номер: US20200080532A1
Принадлежит:

This method is for orientating the blades () of a turbine () past a non-reachable range of positions (α) in a power plant (), said blades () being rotatable around orientation axes (X) distinct from a rotation axis (X) of the turbine (), the turbine () comprising means () for orientating the blades (), said means being adapted to exert an adjustable torque on the blades (). The method comprises steps consisting in a) stopping the energy production of the turbine (), b) setting a water flow which runs the turbine () to a value inferior to a normal energy production value, c) rotating the turbine () in a motor mode using energy from a grid, d) adjusting the torque delivered by the means for orientating the blades () to a reduced value while the turbine () is still rotating, so that the blades () are free to rotate around their orientation axes (X), under action of a hydraulic torque exerted by the water, past the non-reachable range of positions, e) once the blades () have overcome the non-reachable range of positions, adjusting the torque delivered by the means for orientating the blades () to a normal value superior to the reduced value, so that the rotation of the blades () around their orientation axis (X) is stopped in a determined position. 1. Method for orientating the blades of a turbine past a non-reachable range of positions in a power plant , said blades being rotatable around orientation axes distinct from a rotation axis of the turbine , the turbine comprising means for orientating the blades , said means being adapted to exert an adjustable torque on the blades , wherein the method comprises steps consisting in:a) stopping the energy production of the turbine;b) setting a water flow which runs the turbine to a value inferior to a normal energy production value;c) rotating the turbine in a motor mode using energy from a grid;d) adjusting the torque delivered by the means for orientating the blades to a reduced value while the turbine is still rotating, so ...

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12-03-2020 дата публикации

Apparatus and Method for Generating Electricity With Pressurized Water and Air Flow Media

Номер: US20200080538A1
Принадлежит:

A facility for generating electricity, including a water source and a plurality of penstocks adapted for selective flow communication with the water source for delivering water from the water source to a turbine electricity generator. An electricity distribution system is provided having a first component adapted to deliver electricity generated by the turbine electricity generator to an electric grid and an alternative second component adapted to use the electricity to power an air compressor. A compressed air storage reservoir is provided for storing air compressed by the air compressor, including an outlet for selectively delivering the compressed air to the plurality of penstocks according to a predetermined sequence for providing energy to the water contained in the penstock to propel the water from the penstock to the turbine. 1. A facility for generating electricity , comprising:(a) a water source;(b) a plurality of penstocks adapted for selective flow communication with the water source for delivering water from the water source to a turbine electricity generator;(c) an electricity distribution system having a first component adapted to deliver electricity generated by the turbine electricity generator to an electric grid and a second component adapted to use electricity to power an air compressor; and(d) a compressed air storage reservoir for storing air compressed by the air compressor, and including an outlet for selectively delivering the compressed air to the plurality of penstocks according to a predetermined sequence for providing energy to the water contained in the selected penstock to propel the water from the penstock to the turbine.2. A facility for generating electricity according to claim 1 , wherein at least a portion of the facility components are contained within a structure constructed at least in part of coal combustion residue.3. A facility for generating electricity according to claim 1 , wherein:(a) the water source is selected from the ...

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25-03-2021 дата публикации

HYDROPOWER ELECTRIC GENERATOR

Номер: US20210088023A1
Автор: Rohl Karl Baron
Принадлежит:

Disclosed herein is a hydropower electric generator, in accordance with some embodiments. Accordingly, the hydropower electric generator may include a closed conduit. Further, the closed conduit may include a reservoir, a downward flow pipe, a horizontal pipe, an upward flow pipe. Further, the downward flow pipe may include a first turbine configured to intercept the downward flow of the water and generate rotational force. Further, the upward flow pipe may include an airlift assembly configured to receive compressed air into the upward flow pipe. Further, the upward flow pipe may include a second turbine configured to intercept an upward flow of the water and generate rotational force. Further, the hydropower electric generator may include an air pump configured to generate the compressed air based on electrical energy. Further, the hydropower electric generator may include an energy storage device. 1. A hydropower electric generator comprising: a reservoir configured to hold water, wherein the reservoir comprises an inlet port and an outlet port;', a first turbine configured to intercept the downward flow of the water and generate rotational force; and', 'a first DC alternator coupled to the first turbine, wherein the first DC alternator is configured to generate DC electrical energy based on the rotational force generated by the first turbine;, 'a downward flow pipe comprising an upper end and a lower end, wherein the upper end is connected to the outlet port of the reservoir and configured to permit downward flow of the water from the reservoir toward the lower end due to gravitational force, wherein the downward flow pipe comprises, 'a horizontal pipe, wherein a first end of the horizontal pipe is connected to the lower end of the downward flow pipe and a second end of the horizontal pipe is connected to a lower end of an upward flow pipe;', an airlift assembly configured to receive compressed air into the upward flow pipe;', 'a second turbine configured to ...

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29-03-2018 дата публикации

Wilson ICA H2O Turbine Cleaner

Номер: US20180087286A1
Автор: Wilson Eric Wilson
Принадлежит:

A hand tool apparatus for cleaning pool tile and plaster pool stains. The apparatus is made of chemical resistant plastics and a hydro turbine. The apparatus body houses two ports. One port is for the water intake line. A second port is for the suction line coming from the pool pump system. The suction line from the pool pump system then connects to the invention (hand held tool). The invention houses a hydro turbine. A detachable abrasion member is mounted at the end of the turbine shaft. The hydro turbine is activated by using pool suction from the pool pump system. A 3-way valve controls the water intake flow which in turn controls the desired RPM's (revolutions per minute). The combination of RPM's and abrasion member results in removal of unwanted calcium buildup on swimming pool tile or swimming pool plaster. 1. a hand-held tool which houses a Hydro Turbine which is activated by using the suction line from the pool cleaner and a water intake hose from the pool water.2. A drive shaft mounted for rotation within hand held tool which is connected to the Hydro Turbine.3. A detachable abrasive member which screws into shaft connected to the turbine or use of a chuck to attach abrasive disk or member.4. RPM is controlled by a water flow control valve which regulates the water flow from the water intake line through the Turbine to the pool pump suction line , one of these types of a valves could be used , 3-way Ball valve , Butterfly valve , Spear valve , Gate valve , Diaphragm valve , Globe valve , Check valve , Solenoid valve.5. The apparatus of claim 1 , is Hydro powered using various types of water turbines to create the desired RPM's using a suction line from the pool pump system.6. Any one of these Reaction Turbines-VLH claim 1 , Francis claim 1 , Kaplan-Propeller-Bulb-Tube-Straflo claim 1 , Tyson claim 1 , Gorlov claim 1 , could be used with various results of RPM's7. Any of one these Impulse Turbines-Waterwheel claim 1 , Pelton claim 1 , Turgo claim 1 , ...

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30-03-2017 дата публикации

FLUID TURBINE SYSTEMS FOR HARNESSING LIGHT RADIANT ENERGY, THERMAL ENERGY AND KINETIC ENERGY IN VEHICLES AND METHODS OF OPERATING THEREOF

Номер: US20170087973A1
Автор: Gaither Geoffrey
Принадлежит:

A fluid turbine system is provided for harnessing light radiant energy, thermal energy and/or kinetic energy of a vehicle. At least one fluid tube is coupled with a body portion of the vehicle. At least a portion of the at least one fluid tube is positioned proximal to the vehicle's roof, the trunk and/or hood. The at least one fluid tube contains a fluid configured to expand in response to receiving light radiant energy or thermal energy. At least one fluid turbine is coupled with the at least one fluid tube and has blades configured to be rotated by the fluid. A generator converts kinetic energy from the rotation of the blades of the at least one fluid turbine to electrical energy stored in the battery. Valves and/or pumps may control the fluid flow for enhancing generation of electrical energy using light radiant energy, thermal energy and/or kinetic energy. 1. A vehicle having a battery for storing electrical energy , the vehicle comprising:a body portion having a roof, a trunk with a top surface, and a hood;at least one fluid tube coupled with the body portion, at least a portion of the at least one fluid tube positioned proximal to at least one of the roof, the top surface of the trunk, or the hood, the at least one fluid tube containing a fluid configured to expand in response to receiving thermal energy or light radiant energy;at least one fluid turbine coupled with the at least one fluid tube and having blades configured to be rotated by the fluid; anda generator coupled with the at least one fluid turbine for converting kinetic energy from the rotation of the blades of the at least one fluid turbine to electrical energy stored in the battery.2. The vehicle of claim 1 , further comprising:a valve or a pump coupled with the at least one fluid tube for controlling a flow of the fluid; andan electronic control unit configured to control, using the valve or the pump, the flow of the fluid to enhance generation of the electrical energy stored in the battery.3. ...

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30-03-2017 дата публикации

ENERGY GENERATION FROM BOUYANCY EFFECT

Номер: US20170089318A1
Принадлежит:

A power generation apparatus for underwater power generation including at least two balloons completely submerged under a water surface of a water body, wherein a first balloon is filled with a gas and a second balloon is initially empty, a first and a second flexible hose, a plurality of hose reels, a plurality of pulleys, a cord connecting the first balloon and the second balloon, a pump connected to the first flexible hose and the second flexible hose in an airtight manner, a first valve, a second valve, at least two pressure sensors and at least two flow rate sensors, a generator. The apparatus further includes a power controller that reads data from the at least two pressure sensors and the at least two flow rate sensors to control the opening of the first valve, the second valve, and a pumping direction of the pump. 1. A power generation apparatus for underwater power generation comprising:at least two balloons completely submerged under a water surface of a water body, wherein a first balloon is filled with a gas and a second balloon is initially empty;a plurality of flexible hoses connected to the at least two balloons, wherein a first flexible hose of the plurality of flexible hoses is connected to the first balloon in an airtight manner and a second flexible hose of the plurality of flexible hoses is connected to the second balloon in an airtight manner;a plurality of hose reels attached to supports that are fixed to a floor underwater, each hose reel winds one of the plurality of the flexible hoses;a plurality of pulleys hinged to a support that is fixed to the floor underwater;a cord that freely passes over the plurality of pulleys and connects to the first balloon and the second balloon;a pump connected to a first pipe and a second pipe, the first pipe connected to the first flexible hose and the second pipe connected to the second flexible hose each in an airtight manner;a first valve located in the first pipe, and a second valve located in the second ...

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30-03-2017 дата публикации

CONTROLLER FOR PENDULUM TYPE WAVE-POWER GENERATING APPARATUS

Номер: US20170089320A1

The present invention provides a controller for a pendulum type wave-power generating apparatus. Electric power produced by wave-power generation has been pointed out as being of low efficiency and more expensive than wind-power generation. To overcome the above problems, the present invention uses resonance and impedance matching of the sea waves, thus making it possible to markedly enhance the efficiency of wave-power generation. The present invention does not use a wave-height meter which is generally expensive and controls the generating apparatus in response to variation of the conditions of the sea, thus automatically maintaining the resonance and impedance matching operation, thereby making high-efficiency operation possible. As a result, the cost of the wave-power generation can be reduced, so that the wave-power generation can be widely commercialized. 1314160. A controller for a pendulum type wave-power generating apparatus converting a pendulum motion of wave-power energy into a rotary motion using a hydraulic transmission that has pressure accumulators () and () on a hydraulic circuit thereof , thus operating a generator () , the controller comprising:{'b': 33', '43', '32', '42', '60', '30', '40', '60, 'pressure control valves () and () controlling output volumes of hydraulic motors () and () that operate the generator () such that the output volumes are proportional to mean hydraulic pressures in pipes () and () of the hydraulic circuit so that a mean value of wave-power energy input into the hydraulic circuit is equal to a mean value of a drive force of the generator (), whereby wave-power energy is able to be used regardless of a variation in wave conditions on the sea.'}2334360. The controller for the pendulum type wave-power generating apparatus according to claim 1 , wherein the pressure control valves () and () use a force of the wave-power energy as input signals and transmit pressures proportional to the input signals to the generator () as ...

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07-04-2016 дата публикации

LOW PROFILE OCEAN PUMP ARRAY GENERATION STATION

Номер: US20160097369A1
Принадлежит:

A system for generating electricity in a moving water environment, including a single point of contact securing mechanism in contact with a floor of the moving water environment, the securing mechanism comprising a weight and a cable, a pump including a bottom section mechanically coupled to the securing mechanism via the cable, the bottom section comprising a water input valve and a bottom water conduit, a top section slidably coupled to the bottom section, the top portion comprising a water output valve and a top water conduit receiving water from the bottom water conduit, a spring mechanism coupled to the bottom section and the top section, and a buoyancy device coupled to the top pump section. 1. A system for generating electricity in a moving water environment , comprising:a single point of contact securing mechanism in contact with a floor of the moving water environment, the securing mechanism comprising a weight and a cable; a bottom section mechanically coupled to the securing mechanism via the cable, the bottom section comprising a water input valve and a bottom water conduit;', 'a top section slidably coupled to the bottom section, the top portion comprising a water output valve and a top water conduit receiving water from the bottom water conduit;', 'a spring mechanism coupled to the bottom section and the top section; and, 'a pump comprisinga buoyancy device coupled to the top pump section.2. The system of claim 1 , wherein the top section further comprises:a slide stop assembly; andan air release valve arranged near the top most portion of the top section.3. The system of claim 1 , wherein the securing mechanism further comprises support wires.4. The system of claim 1 , further comprising a shared feeder conduit couple to the water output valve.5. The system of claim 1 , further comprising a shared feeder conduit coupled to water output valves of a plurality of pumps.6. The system of claim 6 , wherein the plurality of pumps are arranged substantially ...

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28-03-2019 дата публикации

Method for controlling a wave-energy system by determining the excitation force applied by waves incident upon a moving part of the said system

Номер: US20190093623A1
Принадлежит: IFP Energies Nouvelles IFPEN

The invention relates to the real-time determination of the forces applied by waves incident upon the moving part ( 2 ) of a wave-energy system ( 1 ). The method according to the invention is based on the construction of a model of the radiation force applied to the moving part ( 2 ) and a model of the dynamics of the wave-energy system ( 1 ). The invention uses only measurements of the kinematics of the moving part ( 2 ) and the force applied by the conversion machine ( 3 ) to the moving part ( 2 ).

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26-03-2020 дата публикации

METHOD FOR CONTROLLING A WAVE POWER SYSTEM BY MEANS OF AN INTEGRAL PROPORTIONAL- CONTROL LAW

Номер: US20200095972A1
Принадлежит:

The present invention is a method of controlling a wave energy system (COM), wherein the force fexerted by the waves on a mobile float of the wave energy system is estimated, then at least one dominant frequency ωof the force exerted by the waves on the mobile float is determined using an unscented Kalman filter (UKF), and the control (COM) of the wave energy system is determined by a variable-gain PI control law whose coefficients are a function of dominant frequency ω. 113.-. (canceled)14. A method of controlling a wave energy system that converts energy of waves into electrical or hydraulic energy , the wave energy system comprising at least one mobile float in connection with an energy converter machine , and the mobile float having an oscillating motion with respect to the converter machine , comprising steps of:a) measuring at least one of position, velocity and acceleration of the mobile float,b) estimating force exerted by the waves on the mobile float using the measurement of at least one of the position and velocity of the mobile float,c) determining at least one dominant frequency of the force exerted by the waves on the mobile float using an unscented Kalman filter;d) determining a control value of the force exerted by the converter machine on the mobile float to maximize power generated by the converter machine, by use of a variable-gain proportional integral PI control law to provide the control law with coefficients determined by use of at least one of the at least one dominant frequency of the force exerted by the waves on the mobile float; ande) controlling the converter machine by use of the control value.15. A method as claimed in claim 14 , wherein a proportionality coefficient of the PI control law is determined by use of an optimal load resistance curve from at least one of the at least one dominant frequency of the force exerted by the waves on the mobile float.16. A method as claimed in claim 14 , wherein an integral coefficient of the PI ...

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26-03-2020 дата публикации

METHOD FOR CONTROLLING A WAVE-ENERGY-CONVERTER SYSTEM TAKING INTO ACCOUNT UNCERTAINTIES

Номер: US20200095973A1
Принадлежит:

The present invention is a method for controlling a wave-energy-converter system, wherein the gains of a control law having a proportional component are optimally determined in terms of the harvest of energy, and are robust with respect to uncertainties in the dynamics of the wave-energy-converter system. The harvest of energy is maximized for the worst case described by the uncertainties, by solving a semidefinite-positive optimization problem. 114.-. (canceled)15. A method for controlling a wave-energy-converter system that converts energy of sea swells into electrical or hydraulic energy , the wave-energy-converter system comprising at least one movable float linked to a power take-off , and the movable float making an oscillatory movement with respect to the power take-off comprising steps of:a) measuring at least one of position, speed and acceleration of the movable float;b) estimating the force exerted by the swell on the movable float from the measurement of at least one of position and speed of the movable float;c) determining at least one dominant frequency of the force exerted by the swell on the movable float, by an unscented Kalman filter;d) determining a control value for the force exerted by the power take-off on the movable float to maximize power generated by the power take-off by:i) determining intrinsic resistance for the at least one determined dominant frequency and determining reactance of the movable float, uncertainty intervals of the intrinsic resistance and reactance of the power take-off;ii) determining at least one coefficient of a variable-gain control law including a proportional component from a semidefinite-positive optimization of maximization of the power generated by the power take-off, the semidefinite-positive optimization accounting for the intrinsic resistance and reactance of the movable float and the uncertainty intervals of the intrinsic resistance and reactance of the power take-off; ande) controlling the power take-off ...

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26-03-2020 дата публикации

Speed Converter-Controlled River Turbines

Номер: US20200095974A1
Автор: Han Kyung Soo
Принадлежит:

A river turbine for harnessing a predetermined minimum or baseload value of hydrokinetic energy from river current received at a harnessing module comprises the harnessing module, a controlling module and a generating module. Han's principle is that, in a torque balanced speed converter Hummingbird system, the generated electric power (output) from a harnessed input power (input) must exceed the electric power used for the control motor (control). Harnessed power is provided to the power balanced three variable mechanical control system when a control power line graph is crossed by an output power line graph to achieve an electrical advantage. The three variable mechanical motion control system comprises a Hummingbird control assembly of first and second spur/helical/ring/bevel/miter/worm and pinion gear assemblies or Transgear assemblies. The Hummingbird control, a control motor and a generator among other components may be mounted on a floating platform for delivery of constant power at constant frequency given sufficient input from a waterwheel harnessing module driven by river current flow in at least one direction. 1. A control assembly for controlling variable rotational speed input such that an output of the control assembly provides a constant speed output from a variable rotational speed input , the control assembly for outputting a predetermined value of electric energy according to an adjustment function , the control assembly comprising:an energy harnessing module designed to harness renewable energy from the flow of water current, the harnessing module requiring a depth of water and a speed of water to capture the predetermined value of electric energy for delivery to a load,a first Transgear assembly comprising an input shaft from the energy harnessing module, the harnessing module being designed for a specific location on a river, the input shaft from the energy harnessing module for receiving a variable rotational speed input from water flow energy ...

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08-04-2021 дата публикации

DOWNHOLE POWER GENERATION SYSTEM AND OPTIMIZED POWER CONTROL METHOD THEREOF

Номер: US20210102444A1
Принадлежит:

A downhole power generation system is disclosed, which includes a turbine generator system. The turbine generator system includes a turbine, a generator coupled with the turbine and having an AC-DC rectifier, and an optimized power control unit. The turbine is driven by flow of a downhole fluid to rotate. The generator converts rotational energy from the turbine to electrical energy and outputting a direct current voltage. The turbine generator system is coupled to a load via the optimized power control unit. The optimized power control unit controls to regulate an output voltage of the generator and provides a regulated output voltage to the load so that the turbine generator system has an optimized power output. An optimized power control method for a downhole power generation system is also disclosed. 1. A downhole power generation system , comprising: a turbine driven by flow of a downhole fluid to rotate; and', 'a generator coupled with the turbine and having an AC-DC rectifier, wherein the generator is configured for converting rotational energy from the turbine to electrical energy and outputting a direct current voltage; and, 'a turbine generator system comprisingan optimized power control unit via which the turbine generator system is coupled to a load, wherein the optimized power control unit is configured for controlling to regulate an output voltage of the generator and providing a regulated output voltage to the load so that the turbine generator system has an optimized power output.2. The downhole power generation system of claim 1 , wherein the optimized power control unit is configured for regularly disconnecting the generator from the load and measuring an output voltage of the generator after disconnection claim 1 , and reconnecting the generator with the load and regulating the output voltage of the generator equal to the measured output voltage of the generator multiplied by an optimized voltage ratio predefined for optimized power control.3. The ...

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29-04-2021 дата публикации

MOVABLE AND SEMI-SUBMERGED POWER GENERATOR USING WATERWHEEL TURBINE

Номер: US20210123410A1
Автор: OH Min Hwan, OH Yoon Keun
Принадлежит:

The present invention relates to a movable and semi-submerged power generator using a waterwheel turbine, which can easily be moved to a location where a flow of a fluid occurs, prevents movement by current of water due to being a semi-submerged type, and efficiently produces energy by means of a flow rate control and cutoff of the fluid and expansibility of the turbine. The power generator comprises: an upper structure having first and second structures including first and second balancing tanks and first and second machine rooms; a lower structure disposed on the lower portion of the upper structure and including a fluid flowing hole, a first round, and a fluid guide hole through which the fluid can flow; a turbine rotated by the movement of the fluid; an energy generation means for producing electricity by the turbine; and a fixing means. Thus, the power generator is floatable and movable on water so as to be moved to and installed in various locations. The first and second balancing tanks are filled with the fluid such that the power generator can be semi-submerged, and the height of the turbine is disposed at a position so that a shaft can be placed above the water surface such that the turbine is smoothly rotated, while preventing shaking by waving of the fluid and turning of the power generator, thereby improving energy production efficiency. Also, the fluid under the water surface is guided in a direction capable of operating the turbine while maximally preventing disruption to the flow of the fluid moving to the turbine through the first round of the lower structure, thereby improving energy production efficiency. 1. A movable and semi-submerged power generator using a waterwheel turbine , the power generator comprising:{'b': '10', 'an upper structure () comprising{'b': 11', '11', '11, 'i': a', 'b, 'a first structure () including a first balancing tank () configured to adjust balancing by adjusting buoyancy and a first machine room (); and'}{'b': 12', '12', ...

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28-04-2016 дата публикации

Tidal Power Generation System and Methods

Номер: US20160115936A1
Автор: Knox Richard
Принадлежит:

The invention provides a system for the extraction of energy from an underwaterflow stream in a body of water. The system comprises a support frame which comprises a plurality of receptacles for mounting functional modules on the support frame. The plurality of receptacles are arranged to form a horizontally-distributed two-dimensional array on the support frame. The plurality of vertical axis turbine units is configured to be interchangeably mounted in the receptacles. 1. A system for the extraction of energy from an underwater flow stream in a body of water , the system comprising:a support frame comprising a plurality of receptacles for mounting functional modules on the support frame, the plurality of receptacles arranged to form a horizontally-distributed two-dimensional array on the support frame; anda plurality of vertical axis turbine units configured to be interchangeably mounted in the receptacles.2. The system according to claim 1 , comprising at least one functional module configured to be interchangeably mounted in the receptacles.3. The system according to claim 1 , wherein the plurality of vertical axis turbine units is arranged substantially in a horizontal plane.4. The system according to claim 1 , wherein the plurality of vertical axis turbines is arranged with a subset of the vertical axis turbines vertically offset with respect to others of the plurality of vertical axis turbines.5. The system according to claim 1 , wherein one or more receptacles comprises an energy storage module.6. The system according to claim 1 , wherein one or more receptacles comprises an accumulator cell module.7. The system according to claim 1 , wherein one or more receptacles comprises a hydrogen fuel cell module.8. The system according to claim 1 , wherein one or more receptacles comprises a control module.9. The system according to wherein the support frame and plurality of vertical axis turbines units form an integrated assembly configured to be towed to an ...

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28-04-2016 дата публикации

High building power generation device

Номер: US20160115938A1
Автор: Hsien-Ming Lin
Принадлежит: Individual

A high building power generation device includes a plurality of water storage tanks and at least one power generation unit. The water storage tanks are arranged at specific floors of a high building so that a predetermined vertical distance is provided between adjacent ones of the water storage tanks. The water storage tanks are connected to each other with pipes. A control valve is mounted at a connection of each water storage tank with the pipes. The power generation unit is arranged at a bottom floor of the high building. The pipes connecting with the water storage tanks have a lower opening that is located above the power generation unit. The water storage tanks accumulate and store used water from multiple floors and the control valves are openable to release the used water to impact and drive the power generation unit to generate electrical power.

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27-04-2017 дата публикации

Hydraulic installation and method of operating such an installation

Номер: US20170114768A1
Принадлежит: General Electric Technology GmbH

The present invention relates to a hydraulic installation where sediment concentration in the water flow circulating through the cited installation is monitored continuously. According to the invention, the hydraulic installation comprises a pressure-reducing device and a primary sensor: the pressure reducing device decreases the pressure and discharge of upstream water flow, comprising sediments, allowing that the primary sensor can operate continuously measuring sediment concentration from the upstream water flow. The hydraulic installation also comprises a calibrating device, providing the primary sensor with a reference value to be used for comparison matters and for establishing the content of sediment in the water flow.

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17-07-2014 дата публикации

WAVE POWER GENERATION DEVICE AND METHOD OF CONTROLLING THE SAME

Номер: US20140197637A1

A wave power generation device which eliminates addition of an adjustment mechanism relating to a change in a mass or a shape to a float and an external sensor such as a wave meter and can improve power generation efficiency by synchronizing a vertical movement of the float with all the wave periods while a manufacturing cost of the wave power generation device is suppressed and a method of controlling the same are provided. 1. A wave power generation device comprising:a body;a float configured to move vertically along the body;a transmission mechanism configured to convert the vertical movement of the float to a rotary movement; anda power generator connected to the transmission mechanism, whereinthe wave power generation device has a controller configured to control a torque of the power generator; and either one of a configuration in which a displacement z and a speed z′ of the float are estimated from data of a rotation number or a rotation speed of the power generator, a wave period is estimated from the displacement z and the speed z′, and a displacement coefficient A corresponding to the wave period is determined from a data table stored in advance or a configuration in which the displacement z and the speed z′ of the float are obtained from an acceleration sensor installed in the float, the wave period is estimated from the displacement z and the speed z′, and the displacement coefficient A corresponding to the wave period is determined from the data table; and', {'b': '1', 'a configuration in which a product calculated from the displacement coefficient A and the displacement z is transmitted as a torque command Tq to the power generator so as to control a torque of the power generator.'}], 'the controller has2. The wave power generation device according to claim 1 , whereinthe controller has:a configuration in which a speed coefficient B is determined in addition to the displacement coefficient A corresponding to the wave period from the data table; and{'b ...

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17-07-2014 дата публикации

CONTROL SYSTEM OF VARIABLE SPEED PUMPED STORAGE HYDROPOWER SYSTEM AND METHOD OF CONTROLLING THE SAME

Номер: US20140197638A1
Принадлежит: KABUSHIKI KAISHA TOSHIBA

In one embodiment, a control system of a variable speed pumped storage hydropower system includes an optimization processing unit configured to calculate a flow rate adjusting valve opening demand value and a first command value, a speed control unit configured to generate a secondary current active power component command value of a secondary excitation device based on the first command value, a mechanical (pump-turbine) output compensation unit configured to calculate a compensation value of the opening of the flow rate adjusting valve and/or a compensation value of the generator-motor output, and an output control unit configured to generate a flow rate adjusting valve opening command value based on the generator-motor output command value, the flow rate adjusting valve opening demand value, the compensation value calculated by the mechanical output compensation unit, and the output detection value of the generator-motor. 1. A control system of a variable speed pumped storage hydropower system comprising:a secondary excitation device configured to apply a current to a secondary winding of a generator-motor;a flow rate adjusting valve control unit configured to control an opening of a flow rate adjusting valve that adjusts a flow rate of a pump-turbine connected with the generator-motor;an optimization processing unit configured to generate a generator-motor output command value based on a demanded generator-motor output, and to calculate and output a flow rate adjusting valve opening demand value and a first command value from a head value and the generator-motor output command value, the first command value including a slip command value, a rotational speed command value, an angular velocity command value, or a secondary frequency command value;a speed control unit configured to generate a secondary current active power component command value of the secondary excitation device based on the first command value;an output compensation unit configured to calculate ...

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24-07-2014 дата публикации

KINETIC ENERGY HARVESTING USING CYBER-PHYSICAL SYSTEMS

Номер: US20140203558A1
Принадлежит: BROWN UNIVERSITY

The present invention provides a system for engaging a fluid flow. The system comprising one or more foil members operationally connected to a feedback control loop system. In one embodiment, the foil member is a hydrofoil member or an airfoil member. The foil members are configured for one or more degrees of freedom of oscillatory movement within the fluid flow. The feedback control loop system comprises a sensor system, actuator system, and a controller system. The feedback control loop system configured for actuating the foil members and thereby optimizing the operation of the foil members to attain one or more optimization objectives. In operation, the foil members are situated in the fluid flow and are manipulated to attain one or more optimization objectives. 1. A cyber-physical system for engaging a fluid flow , comprising:one or more foil members having one or more degrees of freedom of oscillatory movement within the fluid flow; anda feedback control loop system operationally connected to the foil members to actuate the foil members for purposes of attaining one or more optimization objectives.2. The system of claim 1 , wherein the foil member is a hydrofoil member configured to have two degrees of freedom to pitch and plunge.3. The system of claim 1 , wherein the foil member is an airfoil member configured to have two degrees of freedom to pitch and plunge.4. The system of claim 1 , wherein the feedback control loop system comprises a sensor system configured for directly or indirectly measuring and monitoring the optimization objective during a predetermined time interval.5. The system of claim 4 , wherein the sensor system is configured to determine the energy extracted by monitoring and measuring the foil members degrees of freedom of motion and its conjugate forces.6. The system of claim 4 , wherein the sensor system is connected to the foil members.7. The system of claim 4 , wherein the feedback control loop system comprises an actuator system ...

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04-05-2017 дата публикации

STORED ENERGY SYSTEM

Номер: US20170122284A1
Автор: MESINGER Jeshoa
Принадлежит:

A hydrostatically based energy conversion unit, which comprises a vertically oriented cylinder; a piston sealingly engaged with and vertically displaceable within the cylinder; a horizontal shaft rotatably mounted to a surface located above the cylinder and mechanically connected to the piston; a motor for driving the shaft in a first rotational direction; and a generator coupled to the shaft for producing electrical power when the shaft rotates in a second rotational direction opposite to the first rotational direction. The piston is vertically displaceable in a first vertical direction during a charging mode following operation of the motor, and is vertically displaceable in a second vertical direction opposite to the first vertical direction during a power generating mode after being hydrostatically driven to produce electrical power in conjunction with the generator. 1. A hydrostatically based energy conversion unit , comprising:a) a vertically oriented cylinder;b) a piston sealingly engaged with and vertically displaceable within said cylinder;c) a horizontal shaft rotatably mounted to a surface located above said cylinder and mechanically connected to said piston;d) a motor for driving said shaft in a first rotational direction; ande) a generator coupled to said shaft for producing electrical power when said shaft rotates in a second rotational direction opposite to said first rotational direction,wherein said piston is vertically displaceable in a first vertical direction during a charging mode following operation of said motor, and is vertically displaceable in a second vertical direction opposite to said first vertical direction during a power generating mode after being hydrostatically driven to produce electrical power in conjunction with said generator.2. The energy conversion unit according to claim 1 , further comprising a reservoir within which a liquid dischargeable from the cylinder is collectable.3. The energy conversion unit according to claim 1 , ...

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24-07-2014 дата публикации

Method for Primary Adjustment of a Hydroelectric Power Plant

Номер: US20140205428A1
Принадлежит: VOITH PATENT GMBH

The invention relates to a method for primary adjustment of a hydroelectric power plant comprising a dual adjustment turbine, at least one first actuator, and at least one second actuator, wherein the first and second actuators are reset depending upon an actual value of a network frequency of an electrical network which receives the generated electrical power for influencing the turbine output in order to achieve a target value of the network frequency. The invention is characterised in that the first actuators are only operated in predefined actuating steps, and then an adjustment to the target value of the network frequency is performed by resetting the second actuators. 111-. (canceled)12. A method for the primary adjustment of a hydroelectric power plant including a dual-control turbine , at least one first actuator , at least one second actuator , wherein the first and second actuators are adjusted for influencing the turbine power depending on an actual value of a network frequency of an electric network receiving the generated electric power in order to reach a target value of the network frequency , and wherein a Kaplan turbine with turbine blades as the first actuators and guide blades of a guide apparatus as second actuators is used as a turbine , the method comprising:displacing the first actuators only in defined predetermined actuating steps, and thereafter adjusting the target value of the network frequency by adjusting the second actuators.13. The method according to claim 12 , wherein the actuating steps of the first actuators are predetermined with at least 0.5% claim 12 , preferably with a value of between 0.5% and 5% claim 12 , of the total actuating path of the first actuators.14. The method according to claim 12 , wherein the actuating steps are predetermined depending on the current operating point of the turbine.15. The method according to claim 13 , wherein the actuating steps are predetermined depending on the current operating point of the ...

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27-05-2021 дата публикации

Kinetic modular machine for producing energy from fluid flows

Номер: US20210156352A1
Принадлежит:

A kinetic modular machine for producing electricity from flows, either mono or bi-directional, moving at different speeds, includes one or more turbines that are “open center” and coaxial; a floating/positioning system; and a connection between the kinetic modular machine and a docking. Each turbine has a rotor, a stator, and a synchronous generator. In different configurations, the turbines are structurally, mechanically and electrically independent. The floating/positioning system includes a floater, a wing, and a fixture linking the turbines to the floater, implementing the control of the rotational axes (roll, pitch, yaw), with the wing keeping the machine at a given distance from the shore and the fluid surface. The modular design, having independent turbines, allows for a flexible design, keeping the installation and maintenance costs low. 1. A modular kinetic machine (M) for producing electricity from fluid flows , the modular kinetic machine being adapted to be floating in a fluid , “open center” , with a swept area fully immersed and perpendicular to flow direction , comprising:one or more turbines (T; where i=1, 2, . . . n) that are mechanically and electrically independent; anda floating/positioning control device (F),wherein each turbine is structurally, mechanically, and electrically independent, by comprising a rotor with blades, a stator, and a built-in generator.2. The modular kinetic machine (M) claim 1 , according to the claim 1 , wherein each rotor and stator comprise parts centered on an axis of the modular kinetic machine rotational claim 1 , the parts being arranged to cause a minimal radial runout and a minimal out of bound runout among rotational parts.3510. The modular kinetic machine (M) claim 1 , according to the claim 1 , wherein a number of blades ( claim 1 , ) is a maximum number suitable dimensions and performances of the kinetic modular machine claim 1 , so as to reduce a load for each blade and allow using materials having a lower ...

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12-05-2016 дата публикации

MARINE TURBINE PIVOT SUPPORT

Номер: US20160131103A1
Автор: DREVET Jean Baptiste
Принадлежит:

A water current power generator having an energy capture assembly, a preferred energy capture axis, and a support for carrying the capture assembly. The generator has steering means for steering the capture assembly relative to the support, the steering means being arranged to steer the capture assembly by pivoting the capture assembly about at least one axis of the support, and to perform said steering in such a manner that when the capture assembly is immersed in a fluid flow presenting a flow direction and a given minimum flow speed, the preferred energy capture axis is substantially oriented parallel to the flow direction, the steering means also including resilient return means for returning the capture assembly towards a reference angular position of the capture assembly relative to the support. 1. A water current power generator comprising an energy capture assembly adapted to capture mechanical energy from a fluid flow , the capture assembly having a preferred energy capture axis such that the efficiency of mechanical energy capture by the capture assembly is at a maximum when the preferred energy capture axis extends parallel to a flow direction of fluid in which the capture assembly is immersed , the generator also having a support for carrying the capture assembly , the generator being characterized in that it includes steering means for steering the capture assembly relative to the support , the steering means being arranged to steer the capture assembly by pivoting the capture assembly about at least one axis of the support , and to perform said steering in such a manner that when the capture assembly is immersed in a fluid flow presenting a flow direction and a given minimum flow speed , the preferred energy capture axis is substantially oriented parallel to the flow direction , the steering means also including resilient return means for returning the capture assembly towards a reference angular position of the capture assembly relative to the support ...

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31-07-2014 дата публикации

SENSOR ARRANGEMENT FOR A TIDAL GENERATOR

Номер: US20140210207A1
Автор: Chir Adam P.
Принадлежит: ROLLS-ROYCE PLC

This invention relates to a generator arrangement, including: a generator located within a flow passage wherein the flow passage has an inlet and an outlet, and the generator includes at least one contra-rotating blade arrangement which is configured to be rotated about a principle axis of the generator by a flow of liquid in the flow passage, and wherein the at least one blade has an adjustable pitch; an array of sensors located downstream of the blade arrangement for detecting the outlet flow conditions; a controller for determining the outlet flow conditions on the basis of conditions sensed by the sensor array; and, a pitch control system for adjusting the pitch of the at least one blade so as to affect the flow conditions at the outlet of the flow passage. 1. A generator arrangement , comprising:a generator located within a flow passage wherein the flow passage has an inlet and an outlet, and the generator includes at least one contra-rotating blade arrangement which is configured to be rotated about a principle axis of the generator by a flow of liquid in the flow passage, and wherein at least one of the contra-rotating blades has an adjustable pitch;an array of sensors located downstream of the blade arrangement for detecting the outlet flow conditions;a controller for determining the outlet flow conditions on the basis of conditions sensed by the sensor array; and,a pitch control system for adjusting the pitch of the at least one blade so as to affect the flow conditions at the outlet of the flow passage.2. A generator arrangement as claimed in wherein the at least one sensor array is located on a support member.3. A generator arrangement as claimed in wherein the support member is a strut for supporting the electrical generator within the flow passage.4. A generator arrangement as claimed in wherein the sensor array includes three upstream sensors and one downstream sensor.5. A generator arrangement as claimed in wherein the sensors are pressure sensors.6. ...

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21-05-2015 дата публикации

Turbomachinery Having Self-Articulating Blades, Shutter Valve, Partial-Admission Shutters, and/or Variable-Pitch Inlet Nozzles

Номер: US20150135696A1
Принадлежит:

An axial-flow turbine assembly that includes one or more features for enhancing the efficiency of the turbine's operation. In one embodiment, the turbine assembly includes a turbine rotor having blades that adjust their pitch angle in direct response to working fluid pressure on the blades themselves or other part(s) of the rotor. In other embodiments, the turbine assembly is deployable in an application, such as an oscillating water column system, in which the flow of working fluid varies over time, for example, as pressure driving the flow changes. In a first of these embodiments, the turbine assembly includes a valve that allows the pressure to build so that the flow is optimized for the turbine's operating parameters. In a second of these embodiments, one or more variable-admission nozzle and shutter assemblies are provided to control the flow through the turbine to optimize the flow relative to the turbine's operating parameters. 1. An oscillating water column (OWC) system , comprising:a structure containing an air-water chamber designed and configured to receive water waves in a manner that changes the volume of air within said air-water chamber during operation, wherein said structure includes an opening between said air-water chamber and an air environment outside said chamber when said structure is deployed;an air-turbine mounted in said opening and designed and configured to be driven by air flowing through said opening during operation of the OWC system;a valve located in said opening and designed and configured to modulate the flow of air through said air-turbine during operation of the OWC system; anda control system designed and configured to modulate said valve in a manner that allows pressure within said air-water chamber to build to a predetermined magnitude before opening said valve.2. An OWC system according to claim 1 , wherein said valve is a shutter valve having pivotable blades claim 1 , and the OWC system further comprises an actuation ...

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27-05-2021 дата публикации

THREE-DIMENSIONAL (3D) FLOW FLOATING POWER GENERATOR

Номер: US20210159825A1
Автор: BERGMAN Bruno
Принадлежит:

A floating electrical power generator having a three-dimensional (3D) flow passageway configured for increasing the water flow on the paddle wheel to increase the power output. 1. A floating power generator , comprising:a floating platform comprising a pair of spaced apart pontoons connected together by a bottom portion or wall, the floating platform configured to define a three-dimensional (3D) flow passageway having a closed bottom extending along a length of the floating platform;a paddle wheel mounted on the floating platform so that paddles rotate downwardly into the flow passageway; andan electrical generator driven by the paddle wheel to generate power, wherein the floating platform and paddle wheel are configured so that a cross-sectional flow area of the 3D flow passageway decreases exponentially along the 3D passageway to a location of the paddles of the paddle wheel operating in the 3D flow passageway to increase a speed of water flow operating on the paddles of the paddle wheel to increase power production.2. A floating power generator , comprising:a floating platform comprising a pair of spaced apart pontoons connected together by a bottom portion or wall defining a three-dimensional (3D) flow passageway extending along a length of the floating platform, the 3D flow passageway having a first flow passageway section tapering inwardly in a width dimension along a flow direction and having a fixed first depth, the first flow passageway transitioning into a second flow passageway having an increasing depth, the second flow passageway transitioning to a third flow passageway having a second depth greater than the first depth and a fixed width dimension in the flow direction;a paddle wheel mounted on the floating platform so that paddles operate in a second portion of the second flow passageway and a first portion of the third flow passageway; andan electrical generator configured to drive the paddle wheel.3. A floating power generator , comprising:a floating ...

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10-05-2018 дата публикации

Mechanical System for Extracting Energy From Marine Waves

Номер: US20180128237A1
Принадлежит:

A mechanical structure used for extracting energy from oscillating marine waves is submitted. The apparatus comprises a plurality of buoyant tanks connected by a plurality of horizontal outriggers through a hinge assembly to a vertical frame located between the buoyant tanks. Marine waves create a pitching motion in the tanks forcing the outriggers to ascend and descend causing the vertical frame to rotate perpendicularly along the horizontal axis of the hinge. The power extraction system is comprised of a plurality of hydraulic cylinders connected to the vertical frame and outriggers. The pitching motion of the buoyant tanks and outriggers produce a vertical rotation along the horizontal axis of the hinge in the vertical frame, which forces contraction and expansion of the hydraulic cylinder assembly, thus extracting power from the relative motion between the members. 1. An apparatus for extracting energy from oscillating fluid comprising:a structural support assembly;a hydraulic assembly;an electrical assembly comprising a prime mover assembly and a generator;a float assembly comprising a plurality of hydraulic support, a rear tank float assembly and a front tank float assembly;wherein said structural support assembly is mechanically coupled to said rear tank float assembly and said front tank float assembly; andwherein said prime mover assembly and said generator are inside said a rear tank float assembly.2. The apparatus as in claim 1 , wherein said structural support assembly comprises a supporting frame claim 1 , a movable joint claim 1 , at least a first elongated member and a second elongated member; and wherein said first elongated member is mechanically coupled to the rear tank float assembly and said second elongated member is mechanically coupled to the front tank float assembly.3. The apparatus as in claim 2 , wherein the at least first elongated member and said second elongated member are mechanically coupled to the movable joint.4. The apparatus as in ...

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10-05-2018 дата публикации

METHOD AND SYSTEM FOR ENERGY CONVERSION FROM A FLOW OF FLUID

Номер: US20180128238A1
Автор: WENTZEL Youri
Принадлежит:

System for power generation from a flow of fluid, comprising a fluid driven device connected to a tether wherein the tether is coupled with a base station to convert energy from the flow of fluid into transportable energy, wherein the fluid driven device comprises a frame provided with adjustable vanes, and wherein the vanes are adjustable for setting into a predefine position relative to the flow of fluid. The fluid driven device comprises a working mode and a retraction mode, wherein in the working mode the vanes are set in a first predetermined position to generate a lift force from the flow of fluid, and wherein in the retraction mode the vanes are set in a second predetermined position to provide a low drag level to the flow of fluid, and wherein the work performed during working mode is larger than the work supplied during retraction mode. 115020030040020030030040020024025525650255256. System () for energy conversion from a flow () of fluid comprising a fluid driven device () , a tether () and a base station () , whereby the fluid driven device () is coupled to the tether () , and the tether () is coupled with the base station () , wherein the fluid driven device () is provided with at least two adjustable vanes () , a first () and a second () vane , wherein optionally said vanes are independently adjustable with respect to each other , whereby during use and as seen in the flow () of the fluid the first vane () and the second vane () occupy a position following each other , characterized in that{'b': 240', '246', '247, 'a) each of the vanes () comprises a leading edge () and a trailing edge (),'}{'b': '1', 'b) the system () comprises a working mode and a retraction mode, whereby'}{'b': 240', '220', '246', '255', '247', '256', '255, 'c) the vanes () are arranged in a row along a frame () whereby in the retraction mode a leading edge () of the first vane () is pointing towards a trailing edge () of the second vane () which is adjacent to the first vane ().'} ...

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19-05-2016 дата публикации

METHOD FOR OPERATING A TURBOMACHINE, WHEREIN AN EFFICIENCY CHARACTERISTIC VALUE OF A STAGE IS DETERMINED, AND TURBOMACHINE HAVING A DEVICE FOR CARRYING OUT THE METHOD

Номер: US20160138418A1
Принадлежит:

A turbo-machine, which can be operated in an optimized driving range is provided. To this end, a method for operating a turbo-machine having at least one turbo-machine stage, which has at least one rotary shaft is disclosed. According to the method, the following method steps are carried out: a) determining a desired efficiency characteristic value ηof the turbomachine stage; b) determining an actual efficiency characteristic value ηof the turbo-machine-stage; c) determining a comparison efficiency characteristic value of the turbo-machine stage by comparing the actual efficiency characteristic value ηand the desired efficiency characteristic value ηto one another; and d) changing at least one operating parameter of the turbo-machine stage subject to the comparison efficiency characteristic value η, wherein in order to determine the actual efficiency characteristic value η, a measuring of a torque of the rotary shaft of the turbo-machine-stage is carried out. 1. A method for operating a turbomachine including at least one turbomachine stage with at least one rotary shaft , the method comprising:{'sub': 'soll', 'a) determining a desired efficiency characteristic value ηof the at least one turbomachine stage;'}{'sub': 'ist', 'b) establishing an actual efficiency characteristic value ηof the at least one turbomachine stage;'}{'sub': vgl', 'ist', 'soll, 'c) establishing a comparison efficiency characteristic value ηof the at least one turbomachine stage by comparing the actual efficiency characteristic value ηand the desired efficiency characteristic value ηto one another; and'}{'sub': vgl', 'ist, 'd) modifying at least one operating parameter of the at least one turbomachine stage in a manner dependent on the comparison efficiency characteristic value η, wherein a torque of the at least one rotary shaft of the at least one turbomachine stage is measured for establishing the actual efficiency characteristic value η.'}2. The method as claimed in claim 1 , wherein a ...

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19-05-2016 дата публикации

POWER GENERATING SYSTEMS

Номер: US20160138554A1
Автор: Hawthorne Matthew
Принадлежит: TIDAL GENERATION LIMITED

Power generating equipment includes a support structure adapted to be disposed on the bed of a body of water having a surface above the bed; and a buoyant power generating apparatus having positive buoyancy releasably connectable to the support structure, the power generating apparatus being adapted to be released from the support structure and to make controlled free ascent to the surface of the water following such release. 114-. (canceled)15. Power generating equipment comprising:a support structure adapted to be disposed on the bed of a body of water having a surface above the bed; anda buoyant power generating apparatus having positive buoyancy releasably connectable to the support structure, the power generating apparatus being adapted to be released from the support structure and to make controlled free ascent to the surface of the water following such release.16. Power generating equipment as claimed in claim 15 , in which the power generating apparatus is a tidal turbine.17. Power generating equipment as claimed in claim 15 , in which the equipment further comprises an umbilical comprising a first end for attachment to the power generating apparatus and/or support structure and a second end for attachment to a retrieval structure claim 15 , in which the umbilical is arranged in use to supply electrical power and/or control signals to control the releasable connection between the power generating apparatus and the support structure.18. Power generating equipment as claimed in claim 15 , in which the equipment further comprises an umbilical comprising a first end for attachment to the power generating apparatus and/or support structure and a second end for attachment to a retrieval structure claim 15 , in which the umbilical is arranged in use to supply electrical power and/or control signals to control the releasable connection between the power generating apparatus and the support structure claim 15 , and in which the first end of the umbilical is attached ...

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19-05-2016 дата публикации

AUTOMATIC HEIGHT ADJUSTING PADDLE WHEEL

Номер: US20160138559A1
Автор: Bauer Jerome A.
Принадлежит:

An automatic height adjusting paddle wheel comprising a housing, where the housing includes a pair of side portions; a paddle wheel positioned along a shaft within the housing; a pair of hoists attached to shaft on each side of the paddle wheel, where each hoists includes a cable coupled to a top portion of the housing; a means to detect a water level fastened to the cable within the hoists, where the means to detect the water level activates the hoists to lift the shaft as the water level raises and lowers in turn raising and lowering the paddle wheel; and a generator at each end of the shaft, where the generator produces electric power as the paddle wheel rotates within the water. 1. An automatic height adjusting paddle wheel comprising:a. a housing, where the housing includes a pair of side portions;b. a paddle wheel positioned along a shaft within the housing;c. a pair of hoists attached to the shaft on each side of the paddle wheel, where each hoists includes a cable coupled to a top portion of the housing;d. a means to detect a water level fastened to the cable within the hoists, where the means to detect the water level activate the hoists to lift the shaft as the water level raises and lowers in turn raising and lowering the paddle wheel; ande. a generator at each end of the shaft, where the generator produces electric power as the paddle wheel rotates within the water.2. The automatic height adjusting paddle wheel according to claim 1 , where the means to detect the water level is a float at attached to the cable at a bottom of each hoist claim 1 , where the cable moves the shaft along a track as the float moves atop the water.3. The automatic height adjusting paddle wheel according to claim 1 , where the means to detect the water level is a computer controller coupled to the hoist claim 1 , where the computer controller includes a pair of lasers claim 1 , where a first laser detects the water level to power a motor within the hoist to lift the shaft claim ...

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19-05-2016 дата публикации

WATER CURRENT POWER GENERATION STRUCTURE

Номер: US20160138560A1
Принадлежит: TIDAL GENERATION LIMITED

A water current power generation structure including: a power generation unit including a main body, a mounting portion which extends from the main body and which defines a mounting axis; a support structure adapted for engagement with a bed of a body of water, and including a support housing; wherein the structure further includes a yaw mechanism for rotating the power generation unit relative to the support structure, the mechanism including: a pinion associated with the mounting portion; and a gear associated within the support housing and arranged to engage the pinion to rotate the power generation unit about the mounting axis relative to the support structure; and a selective engagement mechanism for selectively engaging the yaw mechanism. 2. A structure as claimed in claim 1 , wherein the gear is supported by the mounting portion.3. A structure as claimed in claim 1 , in which the gear is an annular gear.4. A structure as claimed in claim 1 , in which the gear is arranged to extend around the inner periphery of the support housing or the mounting portion.5. A structure as claimed in claim 1 , in which the selective engagement mechanism comprises a clutch arranged to selectively allow relative rotation between the gear and the support housing.6. A structure as claimed in claim 1 , in which the selective engagement mechanism comprises a clutch arranged to selectively allow relative rotation between the gear and the support housing claim 1 , wherein the clutch is radially expandable to provide a selective engagement between the gear and the support housing.7. A structure as claimed in claim 1 , in which the selective engagement mechanism comprises a clutch arranged to selectively allow relative rotation between the gear and the support housing claim 1 , wherein the clutch is axially engagable to provide a selective engagement between the gear and the support housing.8. A structure as claimed in claim 1 , in which the selective engagement mechanism comprises an ...

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03-06-2021 дата публикации

SYSTEM FOR GENERATING ELECTRICAL ENERGY FROM THE WAVE MOTION OF THE SEA

Номер: US20210164434A1
Принадлежит:

A system for generating electrical energy from the wave motion of the sea is provided with electrical-energy generating means for exploiting the wave motion of the sea in order to generate electrical energy. A floating body is provided with equipment designed to regulate the frequency of the resonance peak of the system. 1. A system for generating electrical energy from the wave motion of the sea , comprising:a floating body, designed to oscillate about a main axis of oscillation; andan electrical-energy generating device which is set on said floating body and which comprises a body that is configured to move as a result of an oscillation of said floating body about said main axis, and electric-generating means configured to generate electrical energy as a result of the movement of said body;said floating body comprising equipment provided with at least one chamber containing a variable volume of liquid material controlled by a regulation device to vary a frequency of a resonance peak of said system with respect to a movement of oscillation of said body about said main axis; anda control unit configured for controlling said regulation device so as to regulate said frequency of the resonance peak towards or on a value substantially corresponding to a frequency of oscillation of the wave motion.2. The system according to claim 1 , wherein:said equipment comprises a first chamber and a second chamber, which contain said material and are hydraulically connected together so that, as a result of said movement of oscillation about said main axis, said liquid material displaces at least partially from said first chamber to said second chamber, and vice versa; andsaid regulation device is configured for regulating the flow of said material from said first chamber to said second chamber, and vice versa.3. The system according to claim 1 , wherein said control unit is configured for controlling said regulation device as a function of said frequency of oscillation of the wave ...

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28-05-2015 дата публикации

WAVE POWER GENERATOR

Номер: US20150145250A1
Принадлежит:

A wave power generator comprises a buoyant casing () intended to float in a body of water. An electric machine () located within the casing has an armature and a field source, the electric machine having a fixed part coupled to the casing and a moving part. A counterweight assembly () is movable within the casing, comprising the moving part of the electric machine and wherein a relative movement of the counterweight assembly and the fixed part of the electric machine generates electric power. Power storage () stores power generated by the electric machine and a control system () determines a bi-directional energy flow between the power storage and the armature, wherein energy is returned to the electric machine to drive a motion of the counterweight assembly anti-symmetrically to a motion of the casing. 1. A wave power generator comprising:a buoyant casing intended to float in a body of water;an electric machine located within the casing comprising an armature and a field source, the electric machine having a fixed part coupled to the casing and a moving part;a counterweight assembly that is movable within the casing, comprising the moving part of the electric machine and wherein a relative movement of the counterweight assembly and the fixed part of the electric machine generates electric power;power storage that stores power generated by the electric machine;a control system that determines a bi-directional energy flow between the power storage and the armature, wherein energy is returned to the electric machine to drive a motion of the counterweight assembly anti-symmetrically to a motion of the casing.2. A wave power generator according to comprising a restoring force device located between the casing and the counterweight assembly claim 1 , the restoring force device exerting a restoring force on the counterweight assembly if the assembly moves within the casing.3. A wave power generator according to wherein the restoring force device comprises at least one of: ...

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18-05-2017 дата публикации

Combined pump and turbine

Номер: US20170138213A1
Автор: Adebukola Olatunde
Принадлежит: Adebukola Olatunde

A combined pump and turbine (electromechanical converter), which may be operable as a motorized centrifugal pump for starting a siphon and as an electromechanical turbine particularly for transmission of a liquid, such as water, in a water treatment plant.

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30-04-2020 дата публикации

VARIABLE GUIDE BEARING

Номер: US20200132042A1
Принадлежит:

A guide bearing system including a pad adjuster to traverse at least one bearing in a direction to adjust a radial clearance. The system can further include a sensor for measuring deviations in the radial clearance. In some embodiments, the guide bearing system includes a controller that receives a distance signal from the sensor measuring the radial clearance and signals the pad adjuster to traverse the at least one bearing to compensate for the deviations in the radial clearance. 1. A method for maintaining a radial clearance between a variable guide bearing and a shaft of a turbine comprising:measuring a baseline radial clearance between at least one guide bearing and the shaft of the turbine;engaging a pad adjuster system to the at least one guide bearing, the pad adjuster includes a prime mover in communication to the at least one variable guide bearing through a transmission, wherein the pad adjuster system actuated by a motive force from the prime mover that traverses the at least one guide bearing in a direction to adjust a radial clearance;measuring radial clearance deviations between the at least one guide bearing and the shaft of the turbine;calculating a difference between the radial clearance deviations and the baseline radial clearance; andactuating the prime mover to adjust the at least one guide bearing to compensate for the difference between the radial clearance deviations and the baseline radial clearance.2. The method of claim 1 , wherein the method is a computer implemented method.3. The method of claim 1 , wherein the pad adjuster system includes a threaded pad adjuster in contact with a back surface of the at least one bearing guide claim 1 , an active gear that is communication with the threaded pad adjuster in a con-collinear fashion relative to the length of the pad adjuster.4. The method of claim 3 , wherein the active gear is a worm gear.5. The method of claim 4 , wherein the worm gear is in threaded engagement to a driveshaft gear that ...

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26-05-2016 дата публикации

EXTRACTION OF GRAVITATIONAL FIELD ENERGY

Номер: US20160146179A1
Автор: CHE YANJUN
Принадлежит:

This invention introduces a system that enables to convert the gravitational field energy into electrical, mechanical, and/or other power form of usable energy in any location on Earth. This system utilizes the gravity force and the buoyant force in a repeated pattern to extract the gravitational field energy. 1. A type of method and installation to lose buoyancy—its characteristics are based on: including , in liquid or gaseous substance , (i) a combined object that is composed of at least 2 objects that are closely attached together to unitize as one (a) on the stated combined object , the lower surface and side lower surface of the upper object are covered by the lower object , (b) the stated upper object is disenabled from the effect of upward liquid pressure , (c) the liquid generates downward pressure difference toward the upper and lower surface of the object , and (ii) the device leads for the object to generate a downward direction of pressure difference.2. The gravitational field energy extraction system , includes the supporting body of the combined object device and the rotating structure of the energy output device , and the combined object device installed on the rotating structure; the rotating structure is installed inside a container , and the container is filled with liquid or gaseous substance; it is characterized by: the stated combined object device obtains gravitational potential energy through the object being under no buoyancy effects.3. Method of extraction of gravitational field energy and installation—its characteristics are based on: includes , in liquid or gas ,(i) on the perpendicular rotating device are several combined objects of the same shape, weight and direction, structured in application of the method of losing the buoyant force in the gravity force; and (a) On each combined object distributed on one side of the stated device, the lower and upper surfaces of the upper object generate downward pressure difference direction and ...

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21-08-2014 дата публикации

VEHICULAR FLUID POWER TRANSMITTING DEVICE

Номер: US20140234093A1
Принадлежит:

A vehicular fluid power transmitting device includes a pump impeller, a turbine runner, a damper device, a set member, and a centering member. The pump impeller has a pump shell to which torque from a drive source is input. The damper device has a damper input member and a damper output member. The damper input member is connected to an output shaft of the drive source. The damper output member is connected to the pump shell. The set member is fixed to the pump shell, and is connected to the damper output member. Also, the centering member is provided protruding toward the pump shell from the output shaft of the drive source, and is fitted together with the damper input member. 15.-. (canceled)6. A vehicular fluid power transmitting device comprising:a pump impeller that has a plurality of pump blades and a pump shell to which torque from a drive source is input, the plurality of pump blades being provided inside of the pump shell;a turbine runner that has a plurality of turbine blades and a hub portion, is supported by a shaft end portion of an output shaft of the vehicular fluid power transmitting device, and is rotated by receiving operating fluid pushed out by the pump blades, the plurality of the turbine blades being provided in positions opposite the pump blades, and the hub portion supporting the turbine blades;a damper device that is provided between the drive source and the pump shell in an axial direction of the output shaft of the vehicular fluid power transmitting device, suppresses pulsation of torque from the drive source, and transmits the torque of which the pulsation is suppressed from the drive source to the pump shell, the damper device including a damper input member, an elastic member, and a damper output member, the damper input member being connected to an output shaft of the drive source and configured to transmit torque to the damper output member via the elastic member, the elastic member being housed inside the damper input member, and the ...

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07-05-2020 дата публикации

METHOD TO ENHANCE OPERATION EFFICIENCY OF WATER TURBINES AND TO REDUCE CAVITATION OF COMPONENTS THEREOF

Номер: US20200141380A1
Автор: LIN ZUEI-LING
Принадлежит:

A method to dispose at least one air guiding tube between a penstock and a water turbine installed on a dam to form negative pressure at an outlet of the air guiding device by the water kinetic energy produced from high speed of water flow to take in external air for pressurizing, so as to produce a plurality of pressured air bubbles mixed into the water. The water with pressured air bubbles would be decompressed when flowing to an exit of the penstock and has their volumes increased, so as to enhance the water kinetic energy for driving the water turbine more efficiently; meanwhile the method can prevent from production of cavities and further avoid damages of the components of the water turbine from cavitation. 1. A method to enhance operation efficiency of water turbines and to reduce cavitation of components thereof , comprising:having a penstock installed on a dam at a hydroelectric power station, said penstock having an entry at an upper end and an exit at a lower end;having a water turbine with a casing and a plurality of runner blades disposed inside said casing, said water turbine connected to said exit of the penstock for driving said runner blades by hydropower produced by the water flowing out from the penstock;wherein an air guiding device is disposed between the penstock and the plurality of runner blades of the water turbine, said air guiding device including at least one air guiding tube penetrating into a pipe section formed by the exit of the penstock and a connecting section between the exit and the water turbine, said air guiding tube having an inlet at an upper end for guiding in external air and an outlet at a lower end penetrating into the pipe section; and an air control valve is disposed in the air guiding tube between the inlet and the outlet; andforming negative pressure at the outlet of the air guiding tube by high speed of the water flowing out from the penstock to take in external air and then forming a plurality of pressured air ...

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09-06-2016 дата публикации

WATER TURBINE WITH VARIABLE BUOYANCY

Номер: US20160160835A1
Автор: Abu-Al-Rubb Khalil
Принадлежит:

A floatable turbine () is described, which is movable on a substantially vertically oriented guide () so that the turbine () may move downwards along the guide () under gravitational force. The turbine equipment () is of negative buoyancy to facilitate it sinking, but is further provided with adjustable buoyancy means to allow the turbine arrangement to be imparted with a positive buoyancy when required. When imparted with a positive buoyancy the turbine equipment () floats back up the vertically oriented guide () under the buoyancy force. When moving down the guide () under gravity, and back up the guide () under buoyancy force an effective artificial current is generated by the movement through the turbine blades, turning the blades which in turn cause a generator to produce electricity, typically by suitable gearing. 1. A floatable turbine comprising:a rotatable set of turbine blades operable to rotate about a common axis and communicatively coupled to an electrical generation system arranged to generate electricity as the turbine blades rotate;a buoyancy control system arranged to controllably impart positive buoyancy to the floatable turbine; anda guidance means for guiding the turbine along the common axis as it moves; whereinthe floatable turbine is suitable for submersion in water, and the turbine blades being arranged to rotate as the turbine moves through the water.2. The turbine of claim 1 , wherein the turbine is hydrodynamically shaped.3. The turbine of claim 1 ,wherein the buoyancy control system comprises one or more hydrodynamically shaped ballast tanks.4. The turbine according to claim 3 , wherein the one or more hydrodynamically shaped ballast tanks are a frustum of a cone with central column absent claim 3 , wherein the guidance means is provided within the central column.5. The turbine of claim 1 , wherein the guidance means is coaxial with the common axis.6. The turbine according to claim 5 , wherein the guidance means comprises one or more sets ...

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07-06-2018 дата публикации

ENERGY STORAGE AND GENERATION SYSTEM

Номер: US20180156184A1
Автор: Alao Olalekan A.
Принадлежит:

An energy storage and generation system uses a combination of compressed air energy storage systems and fluid energy systems, to store energy producing capability at a time when electricity requirements are low, to release that stored energy producing capability at a time when electricity requirements are high. 1. An energy storage and generation system for storing or producing electricity comprising:a compressed gas system being used to provide electricity;a liquid system cooperating with the compressed gas system to provide electricity;the compressed gas system and the liquid system storing an energy producing capability at a time when electricity requirements are low;the compressed gas system and the liquid system releasing the energy producing capability at a time when electricity requirements are high;at least one compressed gas vessel receiving or releasing gas;at least two liquid vessels receiving or releasing liquid;the at least one compressed gas vessel and the at least two liquid vessels communicating to assist in production or storage of electricity;at least one liquid valve controlling passage of a liquid for the at least two liquid vessels; andat least one gas valve controlling passage for the at least one gas vessel.2. The energy storage and generation system of further comprising:the at least one compressed gas vessel and the at least two liquid vessels cooperating with a hydroturbine generator in order to produce or store electricity as required;an energy loop feeding an electrical output from the hydroturbine generator back to a gas generating device to boost efficiency for the energy storage and generation system;the at least one compressed gas vessel receiving the gas from or releasing the gas to a compressor;the at least two liquid vessels receiving the liquid from or releasing the liquid to the hydroturbine generator;the at least one gas valve controlling the gas in a gas vessel;the at least one liquid valve controlling the liquid in a liquid ...

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28-08-2014 дата публикации

Run-of-the-river or ocean current turbine

Номер: US20140241855A1
Автор: Kyung Soo Han
Принадлежит: Differential Dynamics Corp

A run-of-the-river or ocean current turbine may comprise a hatch and a slanted block having protector ribs for directing water flow to a waterwheel. The hatch may be controlled by a plurality of Transgear™ gear assemblies for varying the amount of water flow to the waterwheel from extreme drought to flood conditions so that the waterwheel may turn at rated speeds and within a predetermined range. The Transgear gear assemblies may comprise an accumulator for accumulating a rough and a fine tuned waterwheel speed. The Transgear assemblies may comprise embodiments of power take-off switches for, for example, bi-directional or clockwise and counterclockwise waterwheel shaft rotation. The turbine may be aligned for top-feed, side-feed or bottom feed of water and may comprise a tail wing or first and second turbines facing in opposite directions to capture high and low tidal flow.

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23-05-2019 дата публикации

ACCELERATED AND-OR REDIRECTED FLOW-INDUCING AND-OR LOW PRESSURE FIELD OR AREA-INDUCING ARRANGEMENT, THEIR USE WITH TURBINE-LIKE DEVICES AND METHOD FOR USING SAME

Номер: US20190153992A1
Автор: Schurtenberger Walter
Принадлежит:

An accelerated and/or redirected flow arrangement, optimally serving as a wildlife and/or debris excluder (WDE), is used in combination with a turbine-like device having an inlet end and an outlet end for fluid flowing therethrough, e.g., a hydro-turbine. The arrangement includes at least a forward part designed to be placed in front of a fluid inlet of a turbine-like device and configured to produce at least one of the following effects on the fluid: (a) imparting a re-direction of the fluid; and/or (b) accelerating the flow velocity of the fluid, as it flows through the forward part. Turbine-like devices having both a forward part and a rearward part of flow arrangement are disclosed, as well as a method of enhancing turbine performance. 1. An accelerated and/or redirected flow arrangement intended for use in combination with a turbine-like device having an inlet end and an outlet end for fluid flowing therethrough , the arrangement comprising a forward part designed to be placed in front of a fluid inlet of a turbine-like device and being comprised of an accelerated and/or redirected flow-inducing arrangement configured so as to produce at least one of the following effects on the fluid flowing through the turbine-like device: (a) imparting a re-direction of the fluid as it passes through the forward part; and/or (b) accelerating the flow velocity of the fluid as it flows through the forward part.2. A flow arrangement as claimed in claim 1 , wherein the forward part of the flow arrangement comprises a deflector structure comprised of an array of deflector rods that are configured to provide at least one of said effects (a) and/or (b).3. A flow arrangement as claimed in claim 2 , wherein the deflector structure comprises a conically-shaped structure comprised of a conically-shaped array of deflector rods that includes a plurality of arrays oriented to produce a re-direction of the fluid that comprises at least some rotational re-direction.4. A flow arrangement as ...

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