Patents Examined by Carlos A Rivera
  • Patent number: 10544695
    Abstract: Embodiments of the invention relate generally to rotary machines and, more particularly, to the control of wheel space purge flow in gas turbines. In one embodiment, the invention provides a turbine bucket comprising: a platform portion; an airfoil extending radially outward from the platform portion; a shank portion extending radially inward from the platform portion; at least one angel wing extending axially from a face of the shank portion; a platform lip extending axially from the platform portion, the platform lip disposed radially outward from the at least one angel wing; and a plurality of turbulators disposed along and extending outward from the face of the shank portion between the platform lip and the at least one angel wing.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 28, 2020
    Assignee: General Electric Company
    Inventors: Rohit Chouhan, Soumyik Kumar Bhaumik
  • Patent number: 10543910
    Abstract: Systems, devices, and methods for a hub-based active vibration control (AVC) design includes at least one pair of co-rotating motorized imbalanced rotors that create a controllable rotating force vector that can be controlled to cancel hub loads on a rotating hub. This control is achievable using a configuration in which each rotor has an axis of rotation that is offset from the hub axis of rotation. In this way, in a loss of operation failure mode, the system is designed such that centrifugal forces will cause the masses to spin to an orientation of low static imbalance.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: January 28, 2020
    Assignee: LORD Corporation
    Inventors: Mark R. Jolly, Daniel Kakaley, Gregory Fricke
  • Patent number: 10539032
    Abstract: A turbomachine includes a plurality of nozzles, and each nozzle has an airfoil. The turbomachine has opposing walls defining a pathway into which a fluid flow is receivable to flow through the pathway. A throat distribution is measured at a narrowest region in the pathway between adjacent nozzles, at which adjacent nozzles extend across the pathway between the opposing walls to aerodynamically interact with the fluid flow. The airfoil defines the throat distribution, and the throat distribution is defined by values set forth in Table 1, where the throat distribution values are within a +/?10% tolerance of the values set forth in Table 1. The throat distribution reduces aerodynamic loss and improves aerodynamic loading on each airfoil.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: January 21, 2020
    Assignee: General Electric Company
    Inventors: Sumeet Soni, Rohit Chouhan, Ross James Gustafson, Matthew Peter Scoffone
  • Patent number: 10533522
    Abstract: A disclosed fan drive gear system includes a sun gear rotatable about an axis of rotation, a plurality of intermediate gears rotatable about an intermediate gear rotation axis in meshing engagement with the sun gear and a ring gear circumscribing the intermediate gears. A bearing assembly supports at least one of the plurality of intermediate gears and includes a first beam extending in a first direction and a second beam extending from an end of the first beam in a second direction. The bearing surface supported on the second beam such that first and second beams are configured to maintain the bearing surface substantially parallel to the intermediate gear rotation axis during operation.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: January 14, 2020
    Assignee: United Technologies Corporation
    Inventor: William G. Sheridan
  • Patent number: 10533577
    Abstract: A fan system may generate an air flow during use. In various implementations, a fan system may include a fan and an orifice. The orifice may include a converging section, a diverging section, and a minimum radius section disposed between the converging section and the diverging section.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: January 14, 2020
    Assignee: Lennox Industries Inc.
    Inventors: Kapil Das Sahu, Robert B. “Dutch” Uselton
  • Patent number: 10533436
    Abstract: A method and system for controlling a pitch of blades of a fan assembly having a centerline axis of rotation is provided. The system includes a pitch change mechanism (PCM) including a hydraulic actuator positioned axisymmetric with respect to the fan assembly and configured to angularly displace the blades of the fan assembly between a first position and a second position. The PCM further includes a plurality of hydraulic fluid supply lines coupled in flow communication between the hydraulic actuator and a hydraulic fluid transfer sleeve, the hydraulic fluid transfer sleeve configured to transfer a flow of pressurized hydraulic fluid across a gap between a stationary member of the hydraulic fluid transfer sleeve and a rotatable member of the hydraulic fluid transfer sleeve.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 14, 2020
    Assignee: General Electric Company
    Inventors: Daniel Alan Niergarth, Brandon Wayne Miller, Darek Tomasz Zatorski
  • Patent number: 10533751
    Abstract: Various embodiments include apparatuses for performing maintenance on a gas turbine (GT) combustion can, along with related methods. One apparatus can include: a mounting plate having at least two fasteners extending therethrough, the mounting plate configured to engage a fixed combustion chamber in the GT; a can adjustment bar configured to engage the can combustor, the can adjustment bar including a set of apertures extending therethrough; a set of guide pins extending through the set of apertures in the can adjustment bar and coupled with the mounting plate, the set of guide pins connecting the mounting plate with the can adjustment bar; and an adjustment member extending between the can adjustment bar and the mounting plate, the adjustment member configured to modify a position of the can adjustment bar relative to the mounting plate.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: January 14, 2020
    Assignee: General Electric Company
    Inventors: Sandra Beverly Kolvick, Adrien Francis Bigotte, Adrian Adam Klejc, Bernard Finbar Shannon
  • Patent number: 10526973
    Abstract: A system for supplying a turbine engine with fluid includes a first low-pressure pump, a downstream hydraulic resistance and a high-pressure volumetric pump located between the first low-pressure pump and the downstream hydraulic resistance. The downstream hydraulic resistance includes at least one element selected among a fluid proportioning unit, a filter, a flow meter, an exchanger, a cut-off valve and an injection system. The supply system includes a second low-pressure pump and a supply variator configured such as to vary the flow of fluid supplied to the second low-pressure pump, the second low-pressure pump and the supply variator being located parallel to the first low-pressure pump.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: January 7, 2020
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Bellal Waissi, Philippe Vertenoeuil
  • Patent number: 10526894
    Abstract: A propulsor for a gas turbine engine may comprise a case including a duct disposed along an axis to define a flow path, a rotor including a row of propulsor blades extending in a generally radial direction outwardly from a hub, the hub rotatable about the axis such that the propulsor blades deliver airflow into the flow path, and a row of guide vanes situated in the flow path. A first guide vane may comprise a radially inner length (LI), a radially outer length (LO), and a midspan length (LM). The first guide vane may have a first dimensional relationship defined as LO/LM. The first guide vane may have a second dimensional relationship defined as LI/LM. The first dimensional relationship and/or the second dimensional relationship may be greater than 1.05.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: January 7, 2020
    Assignee: United Technologies Corporation
    Inventors: Becky Rose, Frederick Schwarz
  • Patent number: 10526919
    Abstract: A fan case includes a composite fan case body including an outer surface and at least one attachment tool attached to the outer surface of the fan case body. The attachment tool includes a boss that has at least one fastener opening with a threaded insert. A channel extends from at least one interior cavity of the attachment tool through an outer wall of the attachment tool.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 7, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Thomas Joseph Robertson, Jr., Steven Clarkson
  • Patent number: 10526904
    Abstract: A rotor for an engine is provided. The rotor comprising a rotor base part that has fastening grooves for rotor blades that are arranged in succession around a rotational axis along a circumferential direction, multiple rotor blades that are respectively supported in a form-fit manner inside a corresponding fastening groove by means of a blade root, and at least one securing element for the axial securing—with respect to a rotational axis of at least one of the rotor blades at the rotor base part. The at least one securing element has two edges that are arranged at a radial distance to one another and through which the securing element is supported in a form-fit manner at the rotor base part, on the one hand, and, on the other hand, at the at least one rotor blade.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 7, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Markus Weinert, Tobias Leymann
  • Patent number: 10526923
    Abstract: A control device includes a mode-recognizing unit that recognizes whether a start mode of a steam turbine is a cold mode in which a temperature of a steam contact portion of the steam turbine is lower than a predetermined temperature or a different start mode in which the temperature of the steam contact portion is equal to or higher than the predetermined temperature, a first opening generator that generates a first degree of opening greater than a second degree of opening in the different start mode as a degree of opening of an intake air regulator of a compressor in a period after generation of steam from an exhaust heat recovery boiler is started and before supplying of the steam to the steam turbine is started, and a command output unit that outputs a command corresponding to the first degree of opening to the intake air regulator.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Daiki Fujimura, Masayuki Murakami
  • Patent number: 10519790
    Abstract: A turbine component includes an outer shroud arranged within a turbine and further including opposed extending portions. The component further provides an inner shroud shielding the outer shroud from a gas path within the turbine during operation of the turbine and including opposed arcuate portions extending around and in direct contact with a corresponding extending portion of the outer shroud for supporting the inner shroud from the outer shroud. The component further provides a load path forming region at least partially extending between facing surfaces of each arcuate portion and corresponding extending portion. During operation of the turbine, load path forming regions extend into direct contact between at least a portion of the facing surfaces of each arcuate portion and corresponding extending portion, resulting in formation of a loading arrangement having generally evenly distributed radial load forces at the load path forming regions.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: December 31, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Matthew Troy Hafner, John McConnell Delvaux, Glenn Curtis Taxacher
  • Patent number: 10519774
    Abstract: The present invention relates to a rotor arrangement for a turbomachine, having a rotor with a first rotor stage, a shaft, and a first hub for joining the first rotor stage to the shaft. The first hub has a balancing device for balancing the first rotor stage. In addition, the present invention relates to a compressor.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: December 31, 2019
    Assignee: MTU Aero Engines AG
    Inventor: Stefan Boewing
  • Patent number: 10519858
    Abstract: An engine, a rotary device, a power generation system, and methods of manufacturing and using the same are disclosed. The engine includes a detonation and/or combustion chamber configured to detonate a fuel and rotate around a central rotary shaft extending from the detonation and/or combustion chamber, a fuel supply inlet configured to provide the fuel to the detonation and/or combustion chamber, at least two rotating arms extending radially from the detonation and/or combustion chamber and configured to exhaust detonation gases from detonating the fuel in the detonation and/or combustion chamber and provide a rotational thrust and/or force, the rotating arms having inner and outer walls and a nozzle at a distal end thereof, the nozzle being at or having an angle configured to provide the rotational thrust and/or force, and a plurality of cooling coils between the inner and outer walls. Alternatively, the rotary device may include a rotary disc.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: December 31, 2019
    Inventor: Brent Wei-Teh Lee
  • Patent number: 10519788
    Abstract: A composite airfoil comprises a leading edge and a trailing edge, a pressure side and a suction side extending between the leading edge and the trailing edge, a tip at a radial outer end of the airfoil, a shank at a radial inner end of the airfoil, a dovetail connected to the shank, and a metal patch disposed between the dovetail and the shank.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: December 31, 2019
    Assignee: General Electric Company
    Inventors: Qiang Li, Nicholas Joseph Kray, Scott Roger Finn
  • Patent number: 10519862
    Abstract: A gas turbine engine having a rotor centering cooling system for cooling struts within an exhaust diffuser and turbine case to reduce tip rub during hot restarts is disclosed. In particular, the rotor centering cooling system may be positioned within struts in the exhaust diffuser downstream from a turbine assembly for limiting thermal gradients between top and bottom struts to prevent the exhaust bearing body from becoming off-center during steady state operation as a result of the top struts becoming hotter than the bottom struts. The rotor centering cooling system may reduce the temperature at the exhaust diffuser and turbine case, thereby reducing the thermal gradient between the top and bottom struts and top and bottom of the turbine case. As such, the exhaust bearing body remains centered, thereby preventing a tighter blade tip clearance at the top of the turbine assembly than at the bottom of the assembly.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: December 31, 2019
    Assignee: Siemens Energy, Inc.
    Inventors: Kok-Mun Tham, Abdullatif M. Chehab, Ross Peterson
  • Patent number: 10519959
    Abstract: A compressor end head for providing a thermal barrier to a mechanical seal includes an inner end head having an inner end head opening, inner end head grooves in the inner end head opening, configured to place and seal an end portion of a compressor shaft; and an outer end head having an outer end head opening configured to enclose the inner end head.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: December 31, 2019
    Assignee: Nuovo Pignone Tecnologie Srl
    Inventors: Giusepe Sassanelli, Manuele Bigi, Suresh Devenbu
  • Patent number: 10519927
    Abstract: The present disclosure is directed to a shear web for a rotor blade of a wind turbine and a method of manufacturing and assembling same. The rotor blade generally includes an upper shell member having an upper spar cap configured on an internal surface thereof and a lower shell member having a lower spar cap configured on an internal surface thereof. Further, the shear web extends between the spar caps along a longitudinal length of the blade. In addition, the shear web includes first and second outer pultruded layers at least partially encompassing a core material, wherein end portions of the first and second outer pultruded layers form compressed flanges at opposing ends of the shear web.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: December 31, 2019
    Assignee: General Electric Company
    Inventors: James Robert Tobin, Aaron A. Yarbrough, Daniel Alan Hynum, Christopher Daniel Caruso
  • Patent number: 10513330
    Abstract: A blade damper with a magnetic contaminants trap includes, a housing defining a cavity, a piston in operable communication with the housing dividing the cavity into at least a first chamber and a second chamber, a passageway in operable communication with the cavity configured to allow fluid within the cavity to move between the first chamber and the second chamber through the passageway, and at least one magnet in operable communication with fluid in at least one of the cavity and the passageway, such that magnetic contaminants are prevented from freely moving about within the fluid after having been attracted toward the at least one magnet by a magnetic field of the at least one magnet.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: December 24, 2019
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Adrial Kirchen, James Orbon