Patents Examined by Juan G Flores
  • Patent number: 10480484
    Abstract: A wind turbine includes: a wind turbine rotor; a nacelle supporting the wind turbine rotor rotatably; a yaw rotation part configured to rotate the nacelle; and a yaw control part configured to operate the yaw rotation part in a yaw rewind mode of rotating the nacelle in such a direction that a yaw angle changes toward zero, if an absolute value of the yaw angle exceeds a threshold which is variable in accordance with a wind-velocity parameter representing a magnitude of a wind velocity. The threshold increases with an increase in the wind-velocity parameter.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 19, 2019
    Inventor: Mitsuya Baba
  • Patent number: 10480490
    Abstract: A lightning current transfer unit for a wind turbine, the wind turbine comprising a first part and a second part being rotatable relative to each other, wherein the lightning current transfer unit is arranged to provide electrical contact between the first and second parts, the lightning current transfer unit comprising: a first current transfer portion comprising a first slider and configured to be electrically coupled to a first electrically conducting slideway of the first part of the wind turbine, the first slider being rotatable relative to the first slideway; a second current transfer portion configured to be electrically coupled to an electrically conducting portion of the second part of the wind turbine; a first main spring biasing the first slider towards the first slideway; wherein the first slider comprises: a primary contact biased towards the first slideway by the first main spring; a secondary contact arranged to move relative to the primary contact; and a secondary spring arranged between the f
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 19, 2019
    Inventors: Anders Niels Hansen, Morten Bagger Søgaard, Claus Grøn Lyngby, Gert Lading
  • Patent number: 10465660
    Abstract: A reduced profile wind tower system includes a slim cylindrical spinal core extending up vertically from a foundation. A turbine nacelle is mounted on a top end of the core. Wind turbine blades extend out from the nacelle. A plurality of axially loaded tubular arms, braced by the core, are spaced around the core and link to the core through continuous shear wings or discrete bracket assemblies. The tubular arms and shear wings extend up from the foundation. The tubular arms can be set either vertically or sloped; cables may substitute for the tubular arms; and a pontoon may substitute for an on ground foundation.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 5, 2019
    Inventor: Nissim Agassi
  • Patent number: 10443400
    Abstract: A method and apparatus for an airfoil in a gas turbine engine can include an outer surface bounding an interior and spanning from a root to a tip. At least one flow channel can be defined among one or more full-length and partial-length ribs to further define an air flow channel within the airfoil. The air flow channel can have at least one tip turn at the partial-length rib, having at least one hole, for example a film hole, in a portion of the tip.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: October 15, 2019
    Assignee: General Electric Company
    Inventor: James Michael Hoffman
  • Patent number: 10443447
    Abstract: A doubler attachment system is provided for fixedly coupling a strut to an engine casing. The strut includes at least one flanged end configured to mate with the engine casing. The doubler attachment system includes a doubler plate having a first radial surface and a second opposing radial surface. The first radial surface is configured to mate with and conform to a contour of the at least one flanged end of the strut. The doubler attachment system further includes at least two bolts fixedly attached to the doubler plate at the first radial surface. The at least two bolts extend radially away from the first radial surface and toward the engine casing.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: October 15, 2019
    Assignee: General Electric Company
    Inventors: Daniel Elmer King, Jonathan Harry Kerner
  • Patent number: 10443615
    Abstract: A component including a first flange located in a first section of the component, the first flange including a contact surface. The component also including a second flange located in a second section of the component. The first flange is configured to attach to the second flange, and the second flange includes a contact surface configured to contact the contact surface of the first flange. The contact surface of the first flange and the contact surface of the second flange each has an undulating surface profile, where each undulating surface profile is defined by at least one peak point and at least one trough point connected by a curved line extending in at least one of a radial or a circumferential direction relative to a central axis of the component.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 15, 2019
    Assignee: ROLLS-ROYCE plc
    Inventors: James A C O'Toole, James Holt
  • Patent number: 10436207
    Abstract: Embodiments of the inventive technology may include an automatically reconfigurable flow blocking damper to prevent back flow; applications include, e.g., centrifugal fans that may at times be susceptible to such back flow, such as centrifugal fans established in an array and discharging to a common space. A clutch may effect damper engagement with rotatable componentry such that the damper is engaged with rotatable componentry when the damper is in open configuration, and effect damper disengagement from rotatable componentry such that the damper is disengaged from rotatable componentry when the damper is in closed configuration. The clutch may, in particular embodiments, act to prevent rotational imbalance problems otherwise observed when the damper is engaged to and rotates with rotatable componentry.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: October 8, 2019
    Assignee: Acoustiflo, Ltd.
    Inventors: David Hustvedt, Jerry Mills
  • Patent number: 10421557
    Abstract: An electric conduction structure for conducting and diverting electric current from a vane main body of an cutlet guide vane into en exterior support structure is comprised of: a sheath of a metal covering a leading edge of the vane main body; and an electrically conductive pad of the metal comprising a contact portion so dimensioned as to have an overlap with an end of the sheath, and a washer portion into which a bolt for being tightened into the support structure is insertable, wherein any joints of a weld, a spot-weld, a solder, a bond by an electrically conductive paste and a crimp establish connection between the end of the sheath and the contact portion.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: September 24, 2019
    Assignee: IHI Corporation
    Inventors: Kenro Obuchi, Hiroyuki Yagi, Hiroyuki Furukawa, Hideo Morita, Takaomi Inada
  • Patent number: 10415549
    Abstract: A wind turbine including a generator with a stator and a rotor, a cooling arrangement, a wind turbine brake including a brake disk and a caliper with brake pads is provided. An air duct with a filter is located near the brake pads of the caliper. During the operation of the cooling arrangement, a part of the air flow is guided via the brake pads. The brake dust produced by the brake pads during operation of the brake will be reduced by the filter of the air duct.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: September 17, 2019
    Inventors: Giovanni Airoldi, Kim Granly Hansen, Peter Hessellund Soerensen
  • Patent number: 10399664
    Abstract: An unducted thrust producing system is provided that can include a rotating element having an axis of rotation about a central longitudinal axis and comprising a plurality of blades attached to a spinner; a stationary element positioned aft of the rotating element; and an inlet positioned between the rotating element and the stationary element such that the inlet passes radially inward of the stationary element. The rotating element defines an annular valley positioned between a first annular crown and a second annular crown, and the inlet defines an open area positioned aft of the second annular crown.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: September 3, 2019
    Assignee: General Electric Company
    Inventors: William Joseph Bowden, Andrew Breeze-Stringfellow, Richard David Cedar, Syed Arif Khalid, Patrick John Lonneman, Aleksander Piotr Pasieczny, Daniel Lawrence Tweedt
  • Patent number: 10385718
    Abstract: A turbine shroud segment of a turbine shroud for use in a turbine of a gas turbine engine is disclosed herein. The turbine shroud segment includes a carrier segment and a blade track segment. The carrier segment includes metallic materials. The blade track segment includes ceramic matrix composite materials. A seal is arranged between the carrier segment and the blade track segment.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: August 20, 2019
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventors: Mark O'Leary, Daniel K. Vetters
  • Patent number: 10359054
    Abstract: The present application proposes an axial turbomachine compressor comprising a rotor with at least one annular row of rotor blades, a stator casing surrounding the row of rotor blades, the casing including a device for generating counter-vortexes. During operation of the compressor, the movement of the blades creates leakage vortexes at the blade tip. The generating device in turn injects counter-vortexes rotating in the opposite direction to the leakage vortexes in order to counter the leakage vortexes. This improves the surge margin of the compressor. The present application also provides a method for controlling the stability of a turbomachine compressor by counter-vortex injection.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: July 23, 2019
    Inventor: Stéphane Hiernaux
  • Patent number: 10329939
    Abstract: This disclosure relates to a gas turbine engine including a blade outer air seal (BOAS) mounted radially outwardly of a blade. The engine further includes a BOAS support. A radial dimension of the BOAS support is selectively changeable in response to a flow of fluid through the BOAS support to adjust a radial position of the BOAS relative to the blade.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: June 25, 2019
    Inventor: Jose R. Paulino
  • Patent number: 10323523
    Abstract: A blade for a rotor of a gas turbine has: a root, a platform having a lower surface and an upper surface opposite to the lower surface, a hollow aerofoil, an inner cooling passage inside the hollow aerofoil for channelling a first cooling medium to a first plurality of outlet cooling holes on an external surface of the hollow aerofoil, a channel, separated from the first cooling circuit, extending through the platform for channelling a second cooling medium from at least one opening of the channel to a second plurality of outlet cooling holes provided on the upper surface of the platform. The at least one opening of the channel is provided on the lower surface of the platform in order to receive in operation the second cooling medium from an inner cavity of the rotor.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: June 18, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: Mehdi Bahador
  • Patent number: 10316674
    Abstract: A carrier segment for forming a carrier section for one or more gas turbine engine components, the carrier segment including a carrier wall extending between front and rear carrier ends and having a circumferential profile, the carrier segment being configured for defining radially inwardly thereof a chamber for receiving cooling air from an outboard feed source via the front end, wherein the circumferential profile of the carrier wall is undulating, e.g. with a simple waveform configuration or a more complex arrangement of interleaved series of oppositely oriented part-conical surface formations.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 11, 2019
    Assignee: ROLLS-ROYCE plc
    Inventor: Meirion Watkin
  • Patent number: 10309413
    Abstract: An impeller with a disc that rotates about an axis, and blades a plurality of which are disposed in the circumferential direction of the disc with intervals therebetween. A defined blade angle of the blade has a prescribed gradual increase region and gradual decrease region from the center towards the outside, and at the center of an inflection region of the gradual increase region and of the gradual decrease region, provided is a partial gradual decrease region having a smaller blade angle decrease amount than the blade angle increase amount of the gradual increase region.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: June 4, 2019
    Inventors: Ryosuke Saito, Shinji Iwamoto
  • Patent number: 10309416
    Abstract: Disclosed invention is an improved sealing system for axially split, centrifugal pumps. The improved sealing system eliminates the need for a gasket between casing halves. In the improved sealing system, a fluid tight seal is provided by an elastomeric cord positioned within a groove carried by the flange of at least one half of the axially split pump casing.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: June 4, 2019
    Inventors: Armando Mesta Montemayor, Adrian Guadalupe Vallejo Torres
  • Patent number: 10309257
    Abstract: A turbine shroud for a gas turbine engine includes a carrier and a blade track segment. The carrier is formed to include an inwardly opening blade track channel and the blade track segment is positioned in the blade track channel to couple the blade track segment with the carrier.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 4, 2019
    Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce Corporation
    Inventors: Aaron D. Sippel, Ted J. Freeman, David J. Thomas, Richard C. Uskert, Peter J. Loftus, Andrew J. Lazur
  • Patent number: 10301941
    Abstract: A turbine engine rotor blade including an airfoil defined by plane airfoil sections stacked in a radial direction, each airfoil section being positioned radially at a height H, where height H is expressed as a percentage of the total height of the airfoil, and being identified by its sweep angle ? and its dihedral angle ?, wherein the sweep angle ? varies as a function of height H in such a manner that the sweep angle ? reaches a maximum at a height H?M, the value H?M lying in the range 5% to 40%, and the sweep angle ? increases from 0% to H?M, and wherein the dihedral angle ? varies as a function of H, the dihedral angle ? being a decreasing function of height H for heights H lying in the range 0% to H?1, H?1 lying in the range 10% to 40%.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: May 28, 2019
    Inventors: Damien Joseph Cellier, Alicia Lise Julia Dufresne, Philippe Pierre Marcel Marie Pelletrau, Vincent Paul Gabriel Perrot, Laurent Christophe Francis Villaines
  • Patent number: 10301029
    Abstract: A brush wear indicating arrangement is provided. The brush wear indicating arrangement includes an insert, a first electrically conductive brush, and a wear indicator. The insert is disposed within a brush block housing and defines a first aperture. The first electrically conductive brush is movably engaged within the first aperture. The electrically conductive brush is configured to move outward from the first aperture as a wear surface of the first electrically conductive brush wears. The wear indicator is coupled to the first electrically conductive brush. The wear indicator is configured to extend beyond a first insert face of the insert as wear condition of the wear surface of the first electrically conductive brush exceeds a wear threshold.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: May 28, 2019
    Inventor: Mark R. Plickys