Wind Patents (Class 290/55)
  • Patent number: 10145362
    Abstract: A method of handling a direct drive generator of a wind turbine is provided. The direct drive generator comprises a stator and a rotor concentrically arranged about an axis of the direct drive generator. The method includes steps of placing the direct drive generator on a support structure, fixing a selected one of the stator or the rotor to the support structure, connecting actuator means to a remaining one of the stator or the rotor, and rotating the remaining one of the stators or the rotor using the actuator means.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 4, 2018
    Inventors: Uffe Eriksen, Peder Hykkelbjerg Hansen, Henrik Anton Jensen
  • Patent number: 10144510
    Abstract: A system which includes a stoppable rotor which is configured to launch a stopped rotor aircraft into flight. The system also includes one or more wind turbines which are configured to generate electricity while the stopped rotor aircraft is flying, where the stoppable rotor is stopped at least some of the time while electricity is generated.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: December 4, 2018
    Assignee: Kitty Hawk Corporation
    Inventor: Damon Vander Lind
  • Patent number: 10125741
    Abstract: A wind turbine rotor comprising a hub (1) from which a plurality of blades (2) project to a radius of at least 50 meters. Each blade comprising a hollow fairing supported by a central spar. Each blade has a thickness t at a radius r; characterized in that when r=0.5 R, t>0.3 T, where R is the radius of the blade and T is the thickness of the blade at the root end. By being thicker for a greater proportion of the blade, the aerodynamic performance of this part of the blade is worse, but this is more than compensated for as it allows better aerodynamic performance where it matters more, namely at the outer part of the blade. It also allows larger blades to be provided.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: November 13, 2018
    Assignee: Blade Dynamics Limited
    Inventors: Paul Trevor Hayden, David Anthony Whiley
  • Patent number: 10107253
    Abstract: Methods and apparatus to test a generator of a hydrokinetic turbine are disclosed herein. An example method includes positioning a rim generator of a hydrokinetic turbine assembly on a testing apparatus prior to assembling the rim generator with the hydrokinetic turbine; orienting a rotational axis of the rim generator substantially vertically; and measuring a first output performance of the rim generator.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: October 23, 2018
    Inventor: Bryan Sydnor
  • Patent number: 10100644
    Abstract: A spinner for use in a gas turbine engine includes a body and an aft ring coupled to the body. The body is symmetrically formed by filament winding around a central axis. The aft ring includes a band coupled to the body and a plurality of fairings that extend outward in a radial direction from the band away from the central axis.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: October 16, 2018
    Assignee: Rolls-Royce Corporation
    Inventors: Erin M. Romanowski, Eric W. Engebretsen, Matthew A. Scott
  • Patent number: 10087991
    Abstract: A ball bearing that provides an inner race, an outer race, at least one row of balls and at least one cage for spacing apart the row of balls and having a wire extending inside a rolling space delimited by the outer race and the inner race. The bearing also provides at least one seal that includes coupling means for fastening to the wire of the cage.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 2, 2018
    Assignee: AKTIEBOLAGET
    Inventors: Laurent Varnoux, Bruno Constant, Olivier Verbe
  • Patent number: 10087915
    Abstract: A self-installing offshore column stabilized semi-submersible platform has at least one vertical buoyant ballastable column, a telescoping keel tank or stiffened damper plate movably connected with the vertical column that extends and retracts relative to a lower end thereof, and a non-collapsible turbine tower or a tilt and telescoping tower coupled to an upper end of the vertical column that telescopes and reciprocates relative thereto between a horizontal retracted position and an axially extended vertical position. A wind turbine with blades is coupled to a top portion of the tower assembly. The relative position and weight of the keel tank or damper plate is selectively adjustable to raise or lower the center of gravity of the entire mass of the semi-submersible platform including the wind turbine and tower assembly with respect to the center of buoyancy of the platform.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 2, 2018
    Inventor: Nagan Srinivasan
  • Patent number: 10060413
    Abstract: A wind turbine assembly is provided. The assembly includes a support structure and a wind turbine mounted on the support structure. The wind turbine includes a front face with blades defining a surface area to engage incoming wind, a roll axis about which the wind turbine can rotate in response to incoming wind to drive an electric generator, where the support structure defines a horizontal tilt axis about which the wind turbine can pitch forward and backward. The tilt axis divides the surface area of the wind turbine into upper and lower portions of unequal size, such that incoming wind on the front face of the wind turbine applies unequal force to the upper and lower portions of the surface area of the wind turbine to induce pitch of the wind turbine about the tilt axis.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 28, 2018
    Assignee: Natural Power Concepts, Inc.
    Inventor: John Pitre
  • Patent number: 10060410
    Abstract: A gravity power and desalination technology system is provided, including a heat storage apparatus, an inner tube portion, a hot-air and vapor generator, and venting holes, a corrugated tube portion, an outer tube portion, an updraft wind power generator, and an artificial hydro power generator. The heat storage apparatus is provided in a lower portion and configured. The inner tube portion has an inner vent portion inside and disposed vertically over the heat storage apparatus. The hot-air and vapor generator is disposed between the heat storage apparatus and the inner tube portion. The venting holes are bored through the inner tube portion obliquely outwards. The corrugated tube portion is provided on a top portion of the outer tube portion. The updraft wind power generator and the artificial hydro power generator are installed in the lower portions of the inner vent portion and the outer vent portion, respectively.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: August 28, 2018
    Inventor: Dongho Kim
  • Patent number: 10047724
    Abstract: A wind turbine system includes a current generator having a planar base member, a connection member secured at a geometrical center of the base member and configured to rotate about an axis transverse to a plane of the support member upon exertion of wind pressure on the wind turbine, a rotor assembly secured to the connection member for rotation about the axis, the rotor assembly spaced from the base member and including planar rotor members spaced from and parallel to one another; and a planar stator assembly secured to the base member and centered in a spacing between the rotor members, the stator assembly configured to generate a current upon rotation of the rotor assembly relative thereto. A control system supplies power from the generator to an electrical grid. A control system adjusts an angular position of the turbine blades. A wind sensor measures a differential wind pressure.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 14, 2018
    Inventor: Jean-Francis Kisovec
  • Patent number: 10018187
    Abstract: The application relates to wind turbine tower section production methods and in particular to methods of manufacturing a plurality of elongate tower segments for forming a wind turbine tower section, the tower section constructed from a plurality of elongate tower segments connected along their respective longitudinal edges. The tower section is formed from a plurality of cans connected end to end and is divided into elongate segments by cutting along two or more cut lines extending along the length of the tower. A method of providing a horizontal flange at the end of a wind turbine tower is also discussed, as is a vertical flange preassembly including a pair of vertical flanges for connecting the longitudinal edges of adjacent first and second tower segments.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: July 10, 2018
    Assignee: Vestas Wind Systems A/S
    Inventor: Bo Michel
  • Patent number: 10018188
    Abstract: A wind turbine with a tower; a nacelle supported by said tower; at least one unit to be cooled and arranged in the tower or the nacelle; a tower mounted heat exchange structure arranged outside the nacelle and tower; and a circuit facilitating a flow of a fluid medium between the at least one unit and the heat exchange structure. To improve thermal convection with the ambient space, the heat exchange structure comprises a set of panels mutually angled and extending outwards from the tower such that a flow of ambient air can pass transversely trough the panels and thereby cool the unit.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 10, 2018
    Assignee: Vestas Wind Systems A/S
    Inventors: Jesper Nyvad, Thue Søndergård Thomsen
  • Patent number: 10018182
    Abstract: A turbine for generating electrical power includes oppositely rotating wheels which can be driven primarily by wind for driving a plurality of electrical power generators, or by a motor which may be a diesel, solar, electrical, or alternative fuel motor. One or more of the generators can also function as motors for driving the wheels. A method for generating electrical power involves a pair of wheels which rotate oppositely on a central shaft and a plurality of generators driven by the rotation of the wheels for generating power. The rotation of the wheels can be adjusted to a desired speed having regard to the current velocity of the wind and by means of a motor which is connected to the wheels so as to impart rotation thereof.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: July 10, 2018
    Inventor: Darryl Orne Farr
  • Patent number: 9997978
    Abstract: One feature pertains to an apparatus that includes a segmented collector region, a hollow tower, and one or more turbines. The segmented collector region includes a plurality of sectors each capable of receiving compostable matter that heats air within the sectors as the compostable matter composts. The hollow tower includes a first end and a second end, where the first end of the hollow tower is coupled to the segmented collector region to allow airflows from the heated air in the plurality of sectors to flow from the plurality of sectors to the first end of the tower and then rise up through the hollow tower to the second end of the tower. The one or more turbines are positioned in a path of at least one of the airflows to generate electricity.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: June 12, 2018
    Inventor: Henry Hovakimian
  • Patent number: 9995275
    Abstract: A mastless vertical axis wind turbine that comprises a plurality of sails that rotate about a vertical axis under the influence of wind. A platform is connected to and in tension with the plurality of sails at one or more points about the bottom of the plurality of the sails. Also, an external frame is connected to and in tension with the plurality of sails at one or more points about the top of the plurality of the sails. The external frame itself comprises a plurality of legs that converge above the plurality of sails at a central point about the vertical axis of rotation and extend beyond the path swept by the plurality of sails. A coupling mechanism connects one or more of the plurality of legs to the plurality of sails and allows the sails to rotate about the vertical axis of rotation while the legs remain stationary.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 12, 2018
    Inventor: Steven C. Hench
  • Patent number: 9932959
    Abstract: Disclosed are a system, a method and an apparatus of diffuser nozzle augmented wind turbine. In one embodiment, a method includes attaching a nozzle with a streamlined opening to a diffuser to direct an air flow into a wind turbine. In addition, the method includes increasing a wind speed approaching a set of turbine blades within a shrouded wind turbine configuration. The method also includes recirculating the air within the shroud configuration to increase an output power generated through the wind turbine. The system is composed of diffuser and nozzle integrated and non-integrated with and without a flange. In one embodiment, a method includes increasing a pressure differential of a wind turbine.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: April 3, 2018
    Inventor: Khalid M. H. Al-Shibl
  • Patent number: 9929608
    Abstract: An electric motor is provided. The stator includes a core and a stator cage. The stator core is comprised of a plurality of axially stacked laminations. The stator cage includes a pair of end plates positioned adjacent the axial ends of the rotor core. The stator cage also includes at least one axially extending bar that interconnects the end plates. The stator core, the end plates, and the at least one bar are interconnected to form an integral body that is supported on the motor frame. The at least one bar presents opposite ends and includes a bore that projects axially from one of the ends. The bore is exposed to facilitate lifting of the stator.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: March 27, 2018
    Assignee: Nidec Motor Corporation
    Inventors: Kenneth R. Friedman, Ronald W. Schmidt, John T. Scoble, III
  • Patent number: 9929611
    Abstract: A rotor of a wind turbine rotary electric machine has a tubular structure extending and configured to rotate about an axis of rotation; a plurality of active segments parallel to and arranged about the axis of rotation and fitted to the tubular structure; and a plurality of cooling channels formed in the tubular structure.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 27, 2018
    Assignee: WINDFIN B.V.
    Inventors: Matteo Casazza, Georg Folie, Maddalena Renier, Daniele Franco
  • Patent number: 9926912
    Abstract: The present disclosure is directed to a system and method for estimating an overall wind coherence acting on a wind turbine and using same to dynamically adapt the gain or bandwidth of pitch or torque or yaw control logic within a wind turbine. The method includes generating, via sensors, a plurality of sensor signals reflective of wind conditions near the wind turbine. The method also includes filtering, via at least one filter, the sensor signals at a predetermined frequency range considered damaging for turbine sub-system loading. Thus, the method also includes estimating an overall damaging wind coherence acting on the wind turbine as a function of distance-normalized wind coherences, which themselves are derived from auto and cross-covariances of pairs of filtered signals. The distance normalization uses a model of natural coherence dissipation with distance.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: March 27, 2018
    Assignee: General Electric Company
    Inventors: Ameet Shridhar Deshpande, Timothy J. McCoy, Sandeep Gupta
  • Patent number: 9909560
    Abstract: An energy conversion system having two or more enclosures supported in a vertically-stacked configuration by an enclosure support. The enclosures are airfoil-shaped and enclose multiple oppositely-rotating fluid turbines. Fluid directing structures formed in the enclosure direct fluid into and out of the enclosure, including through the turbines. The fluid directing structures are parallel slats formed into the enclosure.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: March 6, 2018
    Inventor: Daniel F. Hollenbach
  • Patent number: 9903349
    Abstract: A solar chimney includes an elongated chamber having the general configuration of an hourglass. The chamber includes one or more heat exchangers for heating air in the chamber by solar energy. A turbine in the chamber is driven by updrafts of air created in the chamber, and the turbine drives an electric generator or other machine. An exhaust wind turbine assists in the production of such updrafts. A vertical axis wind turbine harnesses energy of wind in the environment of the chimney, and such energy is used to drive the exhaust wind turbine. Excess wind energy is stored for later use. A set of extendable and retractable vanes, mounted externally of the chimney, deflects wind, in the environment of the chimney, towards the vertical axis wind turbine.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: February 27, 2018
    Inventor: Pitaya Yangpichit
  • Patent number: 9885340
    Abstract: A screened wind power generation system for generating power in locations where the sight of wind turbines is undesirable or where advertising space can be utilized. The system uses a screen to cover wind turbines with a mesh size and other characteristics that are appropriate for allowing sufficient wind to pass through to wind turbines. The mesh can be coated or imprinted with surface indicia that constitute advertising or create an appearance that blends with surroundings better than an unscreened wind power generation system. The depth of the screen can vary to better enable muffling of wind turbine noise. The screen cross-section can have an aerodynamic shape to facilitate wind flow through the screen.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: February 6, 2018
    Inventor: Patrick Kenneth Powell
  • Patent number: 9866152
    Abstract: In an example embodiment, a system includes a plurality of drive units coupled to a plurality of propellers. Each drive unit includes a single motor/generator and a single motor controller, and the plurality of drive units includes a first drive-unit pair and a second drive-unit pair. The system also includes a high-voltage bus connecting the motor controllers in the first drive-unit pair to a tether, a low-voltage bus connecting the motor controllers in the second drive-unit pair to the tether, and an intermediate-voltage bus connecting the motor controllers of the first drive-unit pair in series with the motor controllers of the second drive-unit pair. The motor controllers in the first drive-unit pair are connected in parallel via the high-voltage bus and the intermediate-voltage bus, and the motor controllers in the second drive-unit pair are connected in parallel via the intermediate-voltage bus and the low-voltage bus.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: January 9, 2018
    Assignee: X Development LLC
    Inventors: Damon Vander Lind, Geoff Dolan, Corwin Hardham
  • Patent number: 9863399
    Abstract: A wind turbine, including a transmission, a transmission shaft acting as transmission output, a generator, a generator shaft acting as generator drive and a coupling connecting the transmission shaft and the generator shaft to one another, is characterized in that the generator shaft is designed as a hollow shaft, the coupling is disposed such that the coupling is connected to the generator shaft on the side of the generator facing away from the transmission, and the transmission shaft passes through the generator shaft and is connected to the coupling.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: January 9, 2018
    Inventor: Sonke Siegfriedsen
  • Patent number: 9835133
    Abstract: The electrical power generation system using renewable energy is particularly adapted to provide electrical power to an independent or remotely situated electrical device such as a street light, emergency call box, or illuminated road sign. The system includes a pivotally mounted venturi with vanes assuring that the venturi is oriented into the prevailing wind. A vertical axis wind turbine is installed in the venturi throat, and drives a shaft extending through the column upon which the venturi is installed to a generator at the base of the column. The venturi and vanes may include photovoltaic cells thereon for further electrical power. The venturi may be heated from a geothermal source, and may include a variable diameter internal wall to adjust the cross-sectional area of the throat of the venturi. The use of functionally graded materials and other phase change materials may also improve the performance of the device.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 5, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Ahmed Z. Al-Garni, Mohammed Aves
  • Patent number: 9831678
    Abstract: In a method for black start of a power station including a plurality of inventers connectable to a local AC electrical grid, a first AC voltage is built up in the AC electrical grid by a first inverter, said first AC voltage being reduced in comparison with a rated voltage of the AC electrical grid by at least a quarter, and at least one second inverter is connected to the AC electrical grid after synchronization with the first AC voltage. After connection of the second converter, a second AC voltage, which is higher than the first AC voltage, is built up in the AC electrical grid.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 28, 2017
    Assignee: SMA Solar Technology AG
    Inventors: Daniel Premm, Christian Schuetz
  • Patent number: 9816487
    Abstract: An integrated axis wind turbine system is provided. The system includes a support tower on which is mounted a turbine whose nacelle comprises of drive train consisting of a horizontally aligned main shaft and an associated a set of horizontal shafts at different elevations which transfer rotary motion from a set of blades and which culminates in electricity generation. When the set of blades rotate at an angular speed exceeding a predefined threshold, excess torque is transmitted by a right angle transmission, via a Continuously Variable Transmission, to a vertically aligned central shaft which is coupled to a second turbine's set of blades whose rotary motion also culminates in electricity generation. The angle of attack of wind on the secondary set of blades is adjusted by a blade positioning system. By the integrated operation of the two turbines, the operational capacity of the combined system is increased.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: November 14, 2017
    Inventors: Bala Govind, Vignesh Gurumurthy
  • Patent number: 9803622
    Abstract: A vertical axis wind turbine system having a vertical mast with one or more turbine units supported thereon. The turbine units are of modular construction for assembly around the foot of the mast; are vertically moveable along the height of the mast by a winch system; and are selectively interlocking with the mast to fix the turbine units in parked positions. The turbine system and each turbine unit includes a network of portals and interior rooms for the passage of personnel through the system, including each turbine unit. The electrical generators, and other sub-components, in the turbine units are of modular construction that permits the selective removal and replacement of component segments, including the transport of component segments through the portals and interior rooms of the turbine system while the turbine units remain supported on the mast. The electrical generators are also selectively convertible between AC generators and DC generators.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 31, 2017
    Assignee: VERT NOVA, LLC
    Inventors: Jorge Aranovich, Frank W Cooper, Jr., José Jorge Gayarre Villoria
  • Patent number: 9797378
    Abstract: A direct driven wind turbine and a main bearing used in such a wind turbine is provided. A rotor of the wind turbine is directly connected with a rotating drive train of the wind turbine, the rotating drive train is directly connected with a rotor of an electrical generator of the wind turbine. The rotating drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The at least one bearing is a plain bearing and the bearing is a tapered bearing, which comprises at least one conical shaped sliding surface.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: October 24, 2017
    Inventors: Bo Pedersen, Kim Thomsen
  • Patent number: 9782710
    Abstract: A wind turbine tower includes a door access opening in a down tower area of the tower. A hinged door panel covers the door access opening, with a ventilation opening defined through the door panel. A multi-sided intake structure, such as a box-like structure, is connected to an exterior of the door panel over the first ventilation opening. The intake structure extends transversely from the door panel and includes a top side, a bottom side, and at least two vertical sides extending between the top side and the bottom side. The vertical sides are open to air flow therethrough. The top and bottom sides may also be open to air flow therethrough. Air from multiple directions is drawn into an interior of the wind turbine tower through the intake structure and ventilation opening. A filtering system with first and second stage filters may be incorporated with any of the intake structures.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: October 10, 2017
    Assignee: General Electric Company
    Inventors: Pritesh Jain, Vijendra Singh Chauhan, Darren John Danielsen, Roman Kolar, Danian Zheng, Jay F. Leonard, Brian Keith Andreson, Adam Lord
  • Patent number: 9751602
    Abstract: Provided are a floating structure fluid dynamic force use system and a wind-propelled vessel which uses the system whereby it is possible to compensate for overturning moment due to fluid dynamic force and to alleviate both tilting and size increases of a floating structure. A floating structure fluid dynamic force use system (1) comprises an assembly (12) which extracts energy from wind or water, and a floating structure (13) which supports the assembly (12). The assembly (12) comprises a wind receiving part (10) which receives fluid dynamic force, and a support column (11) which supports the wind receiving part (10). The assembly (12) is positioned with the center of gravity (15) thereof below the water line and is supported to be capable of tilting in an arbitrary direction upon the floating structure (13).
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 5, 2017
    Inventors: Takuju Nakamura, Hiromichi Akimoto
  • Patent number: 9739267
    Abstract: A wind power system includes a wind turbine resting on a floating support and an anchoring system for anchoring the wind power system connected to the wind power system by attachment points. The wind power system has the attachment points raised above the waterline of the floating support to a height with respect to the waterline determined so as to counterbalance an overturning moment of the wind turbine subjected to a given wind speed.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: August 22, 2017
    Inventors: Daniel Averbuch, Yann Poirette, Timothee Perdrizet
  • Patent number: 9739152
    Abstract: A clip for attachment as an edge. The clip having two symmetric sides, each side composed of five arcs. A first arc of the side starting at the midpoint of the nose having a radius of 0.2476 inches and an arc length of 0.22395 inches. A second arc connected to the first arc having a radius of 0.5832 inches and an arc length of 0.0947 inches. A third arc connected to the second arc having a radius of 0.4636 inches and an arc length of 0.1682 inches. A fourth arc connected to the third arc having a radius of 0.3822 inches and an arc length of 0.2263 inches. A fifth arc connected to the fourth arc having an arc having a radius of 0.3291 inches and an arc length of 0.1917 inches. The fifth arc of each side forming the slot end on the clip.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: August 22, 2017
    Inventor: David A. Shoffler
  • Patent number: 9719483
    Abstract: A system for generating energy from a water current flowing in a body of water. For example, the system may have a generator assembly operable to generate energy in response to the flow of the current and an anchor assembly located at the bed of the body of water, where the generator assembly is attached to the anchor assembly, is held between the bed and the surface of the body of water, and is rotatable about a substantially vertical axis with respect to the anchor assembly. For another example, the generator assembly may include a housing that is held in an upstream orientation when in use, and an impellor assembly located within the housing and including a plurality of blades arranged to be contacted by the flow of the water when in use.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: August 1, 2017
    Assignee: OneSubsea IP UK Limited
    Inventor: Hans P. Hopper
  • Patent number: 9700834
    Abstract: The present invention concerns a method and an arrangement for dehumidifying and desalting interior air in off-shore installations. A simplified arrangement is presented wherein exterior intake air containing water rich in supersaturated and wet salt particles is pretreated with dry and salt free pretreatment air before entering a dehumidifying and de-salting unit from which the intake air exits as desalted and dehumidified exit air. A part of this desalted and dehumidified exit air is then redirected to the intake air flow path to serve as pretreatment air thereby simplifying construction and enhancing the lifetime of the dehumidifying and desalting unit.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 11, 2017
    Assignee: Cotes A/S
    Inventor: Thomas Rønnow Olesen
  • Patent number: 9699967
    Abstract: A wind speed sensor includes a shroud that is elongate along a longitudinal axis that is generally transverse to a direction of travel of a mobile machine to which it is mounted. The wind speed sensor senses a magnitude of a crosswind component. An action signal is generated based upon the crosswind component sensed by the wind speed sensor. The action signal can be used to control a direction of residue discharge from the mobile machine.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: July 11, 2017
    Assignee: Deere & Company
    Inventors: Bhanu Kiran Reddy Palla, John M. Hageman
  • Patent number: 9702435
    Abstract: A planetary stage of a planetary gear unit with a gearbox housing includes a ring gear, at least one planet gear, and a sun gear, which are rotatably positioned. The ring gear is connected via a tappet to a sun gear shaft of an upstream planetary gear stage, and is rotatably mounted in the gearbox housing. The planetary gear unit exhibits increased robustness by connecting the ring gear on a side opposite the tappet to a ring gear support that is seated in the gearbox housing.
    Type: Grant
    Filed: October 13, 2012
    Date of Patent: July 11, 2017
    Assignee: ZF Friedrichshafen AG
    Inventor: Gerhard Bauer
  • Patent number: 9695801
    Abstract: A wind turbine having at least two blades mounted to a blade retainer and a load shaft connected to the blade retainer, such that movement of the blades due to wind causes rotation of the load shaft. The wind turbine includes a frame assembly surrounding the turbine assembly. The frame assembly includes a plurality of vanes to direct wind inside the frame assembly and towards the blades of the turbine assembly. The vanes have a half circle shaped leading edge pointing to an outside perimeter of the frame assembly. The half circle leading edge has two ends and the vanes have a side extending from each of the ends of the half circle that come together to form a trailing edge.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: July 4, 2017
    Inventor: David A. Shoffler
  • Patent number: 9683550
    Abstract: A method for operating a wind turbine is provided. At least one temperature information indicating the temperature of at least one component of the wind turbine is generated. The temperature information is used for determining at least one material property information indicating at least one component specific, temperature dependent mechanical property of the respective component. At least one operational parameter of the wind turbine is adjusted in consideration of the at least one material property information.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: June 20, 2017
    Inventor: Hans Laurberg
  • Patent number: 9683547
    Abstract: Provided is a wind turbine for generating electric energy using wind power, and more specifically, a wind turbine having a nacelle fence for improving aerodynamic performance by mounting a fence structure on the nacelle of a horizontal axis wind turbine. The wind turbine having a nacelle fence decreases the vortex that is generated at the downstream ends of rotating blades so as to improve the aerodynamic performance of the blades, and increases the power coefficient of the wind turbine.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 20, 2017
    Inventors: Cheolwan Kim, Taehwan Cho
  • Patent number: 9670898
    Abstract: A wind turbine for generating electrical energy may include a tower, a nacelle at the top of the tower, and a rotor coupled to a generator within the nacelle. The wind turbine further includes a cooler including a spoiler and at least one cooler panel projecting above a roof of the nacelle. A heliplatform includes a support structure extending from the nacelle and at least partially integrated with the cooler. The wind turbine may also include a crane coupled to the nacelle and configured to move between a first stowed position underneath the nacelle roof and a second operational position. In the operational position, the crane is selectively positionable over the heliplatform. A method of using the wind turbine and crane is also disclosed.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 6, 2017
    Assignee: MHI Vestas Offshore Wind A/S
    Inventors: Mazyar Abolfazlian, Morten Mogensen
  • Patent number: 9673375
    Abstract: A force generator for introducing vibrational forces into a structure for vibration control of the structure includes an inertial mass, at least one actuator for generating a vibratory movement of the inertial mass relative to the structure, and a drive circuit constructed from components for driving the at least one actuator. At least part of the inertial mass is formed by one component of the drive circuit.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: June 6, 2017
    Inventors: Stefan Storm, Rudolf Maier
  • Patent number: 9664175
    Abstract: A rotor for use with an airborne wind turbine, wherein the rotor comprises a front flange, a can, a rear flange, and a rigid insert comprising a propeller mount, wherein the front flange, can, and rear flange comprise one of carbon fiber and spun aluminum, wherein a rear end of the front flange is attached to a front end of the can, and the rear flange is mounted to a rear end of the can, wherein the rigid insert is bonded to the front flange; and wherein the rigid insert comprises a tube that axially extends within the rotor to allow for the positioning of a driveshaft therethrough.
    Type: Grant
    Filed: August 30, 2014
    Date of Patent: May 30, 2017
    Assignee: X Development LLC
    Inventors: Damon Vander Lind, George Edward Homsy
  • Patent number: 9653977
    Abstract: The present invention concerns a synchronous generator of a gearless wind power installation, comprising a stator and a multi-part external rotor. The invention also concerns a wind power installation having such a generator. Furthermore the present invention concerns a transport arrangement for transporting a synchronous generator of a gearless wind power installation.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: May 16, 2017
    Assignee: Wobben Properties GmbH
    Inventors: Wilko Gudewer, Wojciech Giengiel
  • Patent number: 9645034
    Abstract: The present invention concerns a method of operating a wind power installation, wherein the wind power installation has an aerodynamic rotor in the form of a horizontal-axis rotor having a hub with at least one rotor blade, and provided on the rotor is at least one load measuring means for detecting a wind loading on the rotor, the method includes the steps: rotating the rotor of the wind power installation without or with a slight wind loading for calibration of the load measuring means and in that case recording a load measurement with the load measuring means, and calibrating the load measuring means based on the load measurement and previously known weight forces occurring at the rotor.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: May 9, 2017
    Inventor: Georg Eden
  • Patent number: 9631603
    Abstract: A wing with slipstream turbine comprising: a wing or airfoil and at least one turbine, wherein wing or airfoil has at least one partial cylindrical void in a surface and at least one turbine is partially encapsulated within partial cylindrical void. Optionally, wing with slipstream turbine may further comprise at least one slipstream outrigger to help focus the flow of the slipstream more directly on a turbine. Optionally, wing with slipstream turbine may further comprise at least one lateral outrigger to create a low-pressure area which functions to add additional energy transfer to turbine. Optionally, wing with slipstream turbine may further comprise two leading outriggers to help focus the flow of the slipstream more directly on a turbine. Optionally, wing or airfoil may further comprise a leading subcomponent, a left subcomponent, and a right subcomponent to create a super low-pressure area which functions add additional energy transfer to turbine.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 25, 2017
    Inventors: Don Allen Harwood, Keith Allen Harwood
  • Patent number: 9624907
    Abstract: The present invention in a preferred embodiment provides systems and methods for a velocity gradient floating turbine and power generation, comprising: a) a floating platform; b) guide vanes; c) a velocity gradient turbine; d) a gas compressor; e) a means to couple turbine and compressor, further comprising a turbine gear and a compressor gear or belt/chain drive; f) at least a pipe; and g) a turbine—generator sub-system; wherein the said floating platform comprises: i. at least two tanks; ii. at least a rod to support the said tanks; and wherein the said turbine—generator sub-system comprises: i. a turbine ; and ii. a generator.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 18, 2017
    Inventor: Dattatraya Rajaram Shelke
  • Patent number: 9624902
    Abstract: The present invention relates to an installation tool for assembling a main rotor shaft unit and an assembly method thereof. The installation tool comprises a first element for supporting the generator end of the rotor shaft and a rotatable support plate is coupled to a second element of the installation tool via engaging coupling elements. The rotor shaft is rotated by a single crane unit via lifting elements mounted to the generator end, and then lifted out of the installation tool and placed on a floor. The bearing units are then mounted to the outer surface of the rotor shaft. The rotor shaft is afterwards lifted onto the installation tool so that the coupling element is brought into engagement and the rotor shaft is rotated on to the first element. This provides an installation tool that eliminates the need for two crane units to rotate the rotor shaft and reduces the amount of man-hours needed to assemble the rotor shaft unit by up to six hours.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: April 18, 2017
    Assignee: Envision Energy (Denmark) ApS
    Inventor: Jan Westergaard
  • Patent number: 9611832
    Abstract: Water flow power generation apparatus, includes an upper bracket and a lower bracket. The transmission and the generator are located above the upper bracket, there are at least two reverse direction rotating water wheels fixed between the upper bracket and the lower bracket. Every vane of one wheel extends into the space between two adjacent wanes of the other wheel, and the same end of each water wheel is fixed with some synchromesh gears, respectively. A sharp-angled shape guide object is fixed at the water inlet end of the water wheels between the upper bracket and the lower bracket. The resulting structure can not only improve the utilization ratio of water power, but also improve the generating efficiency; moreover, the whole generating apparatus is of simple structure, low cost for design and manufacture and easy installation, and applicable to various water flows.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: April 4, 2017
    Inventor: Qun Zhang
  • Patent number: 9599095
    Abstract: A wind turbine includes a turbine housing, a turbine wheel system housed in the turbine housing, and a wind power converting system for converting kinetic energy generated by the turbine wheel system into electrical energy. The turbine wheel system includes a turbine rotor being driven to rotate circumferentially around an interior of the turbine housing, and a rail frame guiding a rotational movement of a turbine rotor. The wind turbine not only allows airflow to move across and through the turbine wheel system but also allows airflow to be directed and exhausted to maximize and control energy generation. The wind turbine is able to efficiently convert wind power to electrical power via a turbine wheel system which allows for the load generated to be distributed across the circumference of the turbine wheel system instead of localized in the center as the traditional wind turbine.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 21, 2017
    Inventor: Thomas B. Armstrong