Patents Examined by Ninh H. Nguyen
  • Patent number: 9976429
    Abstract: A gas turbine engine composite disk includes dovetail slots between disk posts extending radially inwardly from a periphery, a hub ring of composite plies circumscribed about a centerline axis, and radial plies extending radially away from hub ring into disk posts. A segmented intermediate ring concentric with and located radially outwardly of hub ring includes intermediate ring segments having nested plies with annular bases circumscribed about centerline axis and substantially radially extending clockwise and counter-clockwise radial ply arms. An outer segmented ring may be concentric with and located radially outwardly of intermediate ring, include annular outer ring segments with circumferentially stacked composite plies disposed within intermediate ring segments between clockwise and counter-clockwise radial ply arms and radially outwardly of annular bases. An outer skin of outermost composite covering plies may extend circumferentially around composite disk.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: May 22, 2018
    Assignee: General Electric Company
    Inventors: Nicholas Joseph Kray, Baskaran Bhuvaraghan, Nitesh Jain
  • Patent number: 9976536
    Abstract: The present invention relates to an air turbine capable of without change in its rotational velocity direction, efficiently absorbing the energy associated with a pressure difference between two spaces (A) and (B) of successively changing sign, as in the case of sea wave energy systems. The turbine comprises two sets of blades (I) and (II), each of which is similar to the blade system of a conventional turbine of radial-, mixed- or axial-flow type. The turbine also comprises a system of ducts that connect spaces (A) and (B) through any of the two blade sets (I) and (II). The turbine may be equipped with a fast-acting valve that stops the flow through one or both blade sets (I) and (II).
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: May 22, 2018
    Assignee: INSTITUTO SUPERIOR TECNICO
    Inventors: Antonio Franco De Oliveira Falcao, Luis Manuel De Carvalho Gato, Joao Carlos De Campos Henriques
  • Patent number: 9976566
    Abstract: A radial compressor has at least one compressor stage. The compressor stage includes: an impeller having moving blades on a rotor side arranged in a flow channel of the compressor stage. The flow channel is bounded by a hub contour and a housing contour or cover disc contour. Each moving blade has a flow inlet edge and a flow outlet edge. In the region of the compressor stage on the hub contour of the flow channel, initially a curvature change from a first concave curvature into a convex curvature and following this a curvature change from the convex curvature into a second concave curvature is formed; and/or on the housing contour or cover disc contour of the flow channel, initially a curvature change from a first convex curvature into a concave curvature and following this a curvature change from the concave curvature into a second convex curvature is formed.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 22, 2018
    Assignee: MAN Diesel & Turbo SE
    Inventors: André Hildebrandt, Thomas Ceyrowsky
  • Patent number: 9976430
    Abstract: A platform of a fan outlet guide blade has a first rib and a second rib in an opposite surface of a flow passage surface thereof. The first rib and the second rib are formed in portions excluding a predetermined area separated to an upstream side and a downstream side by 8 to 30% of an inter-flange distance between a first flange and a second flange with respect to an axial center of the platform, the portions being located on a pressure surface side in the opposite surface.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 22, 2018
    Assignee: IHI Corporation
    Inventor: Kazuto Ogawara
  • Patent number: 9976568
    Abstract: A diffuser for an air cycle machine defines airflow both to a compressor rotor from the inlet and from the compressor rotor through a plurality of vanes that define radially extending airflow passages. The size and shape of both the inlet and the vanes of the diffuser define and tailor the character of airflow presented to and leaving the compressor rotor to provide a desired change in air flow.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 22, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Brent J. Merritt, Harold W. Hipsky
  • Patent number: 9976423
    Abstract: The systems and methods described herein adapt the orientation, position and/or diffusion angles of showerhead cooling holes depending on the external gas/streamline flow direction. In regions, for example, where the stagnation line is on the pressure side, the breakouts of the showerhead holes substantially face aft (e.g., primarily towards the suction side). The location and positioning of the holes may be oriented according to the direction of incoming gas flows.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 22, 2018
    Assignee: United Technologies Corporation
    Inventors: San Quach, Christopher King, Steven Bruce Gautschi, David J. Candelori
  • Patent number: 9970304
    Abstract: The present disclosure is directed to a root assembly for a rotor blade of a wind turbine and methods of manufacturing same. The root assembly includes a blade root section having an inner sidewall surface and an outer sidewall surface separated by a radial gap, a plurality of root inserts spaced circumferentially within the radial gap, and a plurality of spacers configured between one or more of the root inserts. Further, each of the root inserts includes at least one bushing surrounded by a pre-cured or pre-consolidated composite material. In addition, the spacers are constructed of a pre-cured or pre-consolidated composite material.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 15, 2018
    Assignee: General Electric Company
    Inventors: Christopher Daniel Caruso, Aaron A. Yarbrough, Daniel Alan Hynum, James Robert Tobin
  • Patent number: 9970313
    Abstract: A unison ring assembly comprises a backing plate, and a plurality of pocket-forming portions. The backing plate is formed as an annular disc, with the annular disc being planar in a radial plane of the unison ring assembly. The plurality of pocket-forming portions are equi-spaced circumferentially around the axis of the unison ring assembly, and each of the plurality of pocket-forming portions is attached to the backing plate to form a corresponding radially extending pocket.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: May 15, 2018
    Assignee: ROLLS-ROYCE plc
    Inventors: David Michael Beaven, Kenneth John Mackie, Richard Geoffrey Stretton
  • Patent number: 9970454
    Abstract: A propeller fan, including: a boss; and a plurality of blades, each of the plurality of blades including a pressure surface and a suction surface, in which: when a connecting portion between the pressure surface and a side surface of the boss is defined as a pressure surface-side boundary portion, and a connecting portion between the suction surface and the side surface of the boss is defined as a suction surface-side boundary portion, a curvature of the suction surface-side boundary portion is smaller than a curvature of the pressure surface-side boundary portion; and as a blade area projected on a plane orthogonal to the rotation axis, a blade area of the suction surface is larger than a blade area of the pressure surface.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: May 15, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takahide Tadokoro, Yasuaki Kato, Atsushi Kono
  • Patent number: 9970301
    Abstract: A blade of a compressor or of an axial-flow turbomachine. The blade comprises a joining airfoil, or main airfoil, extended by branches, or auxiliary branch airfoils. The branches are adjacent and extend the joining airfoil radially. The branches form a row over the circumference and comprise faces facing one another. The branches comprise joining edges connected to the joining airfoil and are coincident or joined so as to form a circumferential material continuation between the adjacent branches. The leading edges and the trailing edges of the branches are a continuation of the leading edges and the trailing edges of the joining airfoil. The branch airfoils offer more anchoring points for a blade. The overlap of the branch airfoils strengthens the edges of the joining airfoil, which can thus be formed thinner. The blade comprises a fixing platform connected to the branch airfoils.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: May 15, 2018
    Assignee: Safran Aero Boosters SA
    Inventor: Stephane Hiernaux
  • Patent number: 9970447
    Abstract: A fuel cell system includes an air compressor that supplies oxidant gas to a fuel cell installed in a fuel cell vehicle, a measured rotational speed acquirer that acquires a measured value of rotational speed of the air compressor, and a controller that calculates a rotational speed command value of the air compressor based on required generated power of the fuel cell, calculates a torque command value of the air compressor based on the calculated rotational speed command value and current rotational speed of the air compressor, and controls rotational speed of the air compressor based on the calculated torque command value. The controller estimates the current rotational speed of the air compressor baaed on the measured value of the rotational speed acquired by the measured rotational speed acquirer and a history of the calculated torque command value, and calculates the torque command value by using the estimated rotational speed.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: May 15, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kohei Oda, Kenji Umayahara
  • Patent number: 9970458
    Abstract: The invention relates to a wall ring for receiving an axial fan in particular, comprising an annular body with a central longitudinal axis, a flow inlet opening, a flow outlet opening, and an electric heating element in particular, said heating element being arranged on at least some sections of the circumference of the annular body. A profiled covering section made of a thermally insulating material is removably fixed to an outer surface of the annular body at least in some sections of the circumference, said profiled covering section together with the annular body forming a receiving area in the region of the annular wall of the annular body in order to receive the electric heating element.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: May 15, 2018
    Assignee: EBM-PAPST MULFINGEN GmbH & Co. KG
    Inventors: Dieter Best, Othmar Ströbel, Stefanie Wolfarth
  • Patent number: 9963985
    Abstract: A turbomachine includes a plurality of nozzles, and each nozzle has an airfoil. The turbomachine includes 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 reduces aerodynamic loss and improves aerodynamic loading on each airfoil.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 8, 2018
    Assignee: General Electric Company
    Inventors: Rohit Chouhan, Gunnar Leif Siden, Andre Borisenko, Ibrahim Sezer
  • Patent number: 9963992
    Abstract: A seal for a rotary machine includes a flexible element extending circumferentially about a rotor and extending generally radially from a first end to a free second end. The flexible element is coupled proximate the first end for rotation with the rotor. The flexible element extends at substantially a first angle between at least an intermediate portion of the flexible element and the free second end when the rotor is operating at less than a critical speed, such that a clearance gap is defined between the free second end and a stationary portion. The seal also includes a retaining plate having a stop that orients the flexible element at a second angle proximate the free second end when the rotor is operating at equal to or greater than the critical speed, such that the flexible element forms a dynamic seal between the rotor and the stationary portion.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: May 8, 2018
    Assignee: General Electric Company
    Inventors: Xiaoqing Zheng, Michael Dennis Mack, Neelesh Nandkumar Sarawate, Deepak Trivedi
  • Patent number: 9963973
    Abstract: A blading for a turbomachine, particularly for a gas turbine, wherein thickened areas and depressions are formed and disposed on a lateral wall having a plurality of blades such that at least one depression or thickened area is disposed at a blade pressure side and at least one thickened area or depression is disposed at a blade suction side for each blade of the plurality of blades.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: May 8, 2018
    Assignee: MTU Aero Engines GmbH
    Inventors: Roland Wunderer, Harald Passrucker
  • Patent number: 9957816
    Abstract: An engine component with particulate mitigation features is provided. The engine component comprises an internal engine component surface having a cooling flow path on one side thereof and a second component adjacent to the first component. The second component, for example an insert, may have a plurality of openings forming an array wherein the openings extend through the second component at a non-orthogonal angle to the surface of the second component.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: May 1, 2018
    Assignee: General Electric Company
    Inventors: Ronald Scott Bunker, Jason Randolph Allen, Ryan Nicholas Porter, Byron Andrew Pritchard, Christopher Joseph Greenwell, Timothy Deryck Stone, Andrew Stephen Pritchard
  • Patent number: 9957824
    Abstract: A stationary guide vane includes a top platform, a bottom platform, and a vane body located between the top platform and the bottom platform. The vane body includes one or more cavities formed on a side wall of the vane body. One or more of the cavities are filled with vibration damping material and a vane cover is bonded to the vane body over the one or more containers.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 1, 2018
    Assignee: United Technologies Corporation
    Inventors: Carl Brian Klinetob, Stephen J. Lindahl, Myron L. Klein, Andrew Pope, William Richard Ganoe, Jr., Thomas D. Kasprow, Douglas J. Morgan
  • Patent number: 9957968
    Abstract: A system is disclosed for measuring displacement of a regulation system for a variable pitch axial fan. The system includes a hub having a plurality of adjustable pitch fan blades. A hydraulic cylinder is connected to the hub. A piston is disposed within the hydraulic cylinder. The piston is coupled to a piston shaft that is axially movable with respect to the hub. The piston shaft is coupled to an actuation assembly for adjusting the pitch of the plurality of adjustable pitch fan blades in response to an axial movement of the piston. A rotating oil union includes a housing and an interior element, the interior element coupled to the hydraulic cylinder so that rotation of the cylinder and the hub causes rotation of the interior element. The rotating oil union includes a static housing and a central probe fixed to the static housing. The central probe extends through respective openings in the interior element, the hydraulic cylinder, and the piston.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 1, 2018
    Assignee: Howden Axial Fans ApS
    Inventor: Jan Simonsen
  • Patent number: 9957814
    Abstract: A gas turbine engine component includes a wall that provides an exterior surface and an interior flow path surface. A film cooling hole extends through the wall and is configured to fluidly connect the interior flow path surface to the exterior surface. The film cooling hole has a pocket that faces the interior flow path and extends substantially in a longitudinal direction. The film cooling hole has a portion downstream from the pocket and is arranged at an angle relative to the longitudinal direction and extends to the exterior surface.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: May 1, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Clifford J. Musto, Sasha M. Moore, Thomas N. Slavens, San Quach, Nicholas M. LoRicco, Timothy J. Jennings, John McBrien
  • Patent number: 9957804
    Abstract: A turbomachine includes a plurality of blades, and each blade has an airfoil. The turbomachine includes opposing walls that define 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 blades, at which adjacent blades 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 reduces aerodynamic loss and improves aerodynamic loading on each airfoil.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 1, 2018
    Assignee: General Electric Company
    Inventors: Rohit Chouhan, Sumeet Soni, Ross James Gustafson, Nicholas Alvin Hogberg