Patents Examined by Adam W Brown
  • Patent number: 9995162
    Abstract: A seal and damper system is provided. The system comprises a blade assembly seal with a central portion defining a recess and a depression. The system also includes a damper comprising a center body and an arm extending from the center body and configured to engage the depression. A blade assembly is also provided comprising a blade platform, a seal configured to press against the blade platform, and a damper clipped onto the seal.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: June 12, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Daniel A. Snyder
  • Patent number: 9982686
    Abstract: An elastomeric dampening link including two or more interconnected dampening bushings mounted around corresponding ones of two or more adjustable length turnbuckles linked to devices and elastomeric dampening link includes at least one bar connecting adjacent ones of the dampening bushings. Clamping bands of clamp may be clamped around each of the dampening bushings. Bar may be in tension between the dampening bushings. Each of the turnbuckles may include a rod disposed in a corresponding one of the dampening bushings and having distal hollow internally threaded first end, first eyelet mounted on the first externally threaded shank adjustably screwed into internally threaded first end. One of the bushings may be substantially solid, have a rectangular slot extending inwardly from an annular surface of bushing, and the rod may have six sided surface with two opposite sides slidingly engaging and fitting snugly in the slot. Turnbuckles and links may be used to actuate variable stator vanes.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 29, 2018
    Assignee: General Electric Company
    Inventors: Aldo Daniel Ramirez Ollervides, Luis Alejandro De Leon Teran, Timothy Jay VanDemark, Steven Edward Horner, Sr.
  • Patent number: 9982654
    Abstract: Wind turbine having a wind turbine tower, a nacelle provided on the wind turbine tower, a rotor hub rotatably mounted to the nacelle, and one or more wind turbine blades having a root end to be mounted to the rotor hub, a tip end, and pressure and suction sides connected to each other via a leading edge and a trailing edge. The wind turbine blade has a plurality of cross-sectional profiles arranged according to the surface of the suction side so that the surface of the suction side forms a line having a predetermined curvature which curves towards the pressure side of the wind turbine blade and/or forms an approximately straight line along at least part of the relative length. The line crosses each cross-sectional profile in that point on the pressure side where the maximum relative thickness of that profile perpendicular relative to its chord line is measured.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: May 29, 2018
    Assignee: Envision Energy (Denmark) ApS
    Inventor: Wout Ruijter
  • Patent number: 9976439
    Abstract: The present invention relates to a method for differentiating control failures in a system for controlling an actuator (14) determining the position of a member for modifying the state of a gas-turbine engine, the system including a single- or dual-channel electric control and a mechanical control, the electric control including one computer (10, 10?) per channel, only one of which is active at any given time in order to calculate the set position of the movable member of the actuator (14) and to transmit a set signal to the single-channel mechanical control of the actuator, a failure being diagnosed when a deviation is detected between the set position of the movable member of the actuator and the position thereof measured during a predetermined deviation confirmation time.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 22, 2018
    Assignee: SNECMA
    Inventors: Severine Chevalier, Jose Roland Rodrigues, Alain Tiepel
  • Patent number: 9970308
    Abstract: The present disclosure includes feather seals for use in gas turbine engines. The feather seals may be used in stationary components such as vanes or blade outer air seals. The feather seals may include stiffening elements, such as round or ovoid dimples, to improve the stiffness of the feather seals.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 15, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Russell J. Bergman
  • Patent number: 9963991
    Abstract: A brush seal plate may comprise a flat ring with bristles protruding from an inner diameter of the flat ring. The brush seal plate may have a racetrack slot to allow the flat ring to move in a radial direction relative to a retention pin. The bristles may protrude from the inner diameter of the flat ring at an angle. A slot may be formed through the flat ring, and the slot may be angled. The flat ring may be circumferentially discontinuous. The flat ring may further comprise a retention opening configured to fix the flat ring in place relative to a retention pin.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: May 8, 2018
    Assignee: United Technologies Corporation
    Inventors: Ross Wilson, Michael G. McCaffrey, John R. Farris, Theodore W. Hall, John W. Korzendorfer, Elizabeth F. Vinson, Jeffrey Michael Jacques, John E. Paul, Edwin Otero, Alan W. Stoner
  • Patent number: 9951635
    Abstract: A blade row group arrangeable in a main flow path of a fluid-flow machine and including N adjacent member blade rows firmly arranged relative to one another both in the meridional direction and in the circumferential direction is provided. Here, a front member blade row with front blades having a leading edge and a trailing edge as well as a rear member blade row with rear blades having a leading edge and a trailing edge are provided, and the blade row group has two main flow path boundaries. It is provided that the profile of the blades of the member blade rows is firmly connected at at least one of the two main flow path boundaries to a base.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 24, 2018
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Volker Guemmer
  • Patent number: 9951787
    Abstract: In an impeller for a fluid energy machine with a hub and a plurality of rotor blades which are mounted on the hub and around which a medium may flow through the fluid energy machine and which form a blade duct between two neighboring rotor blades with a blade duct length which extends in the axial direction of the impeller, wherein each rotor blade is connected to the hub via a first transition region with a first curvature and via a second transition region with a second curvature and with a straight conical blade duct bottom of the blade duct formed between the first transition region and the second transition region.
    Type: Grant
    Filed: January 1, 2015
    Date of Patent: April 24, 2018
    Assignee: iHi CHARGING SYSTEMS INTERNATIONAL GMBH
    Inventors: Roberto De Santis, Daniel Just
  • Patent number: 9945150
    Abstract: A latch handle is disclosed. The latch handle may comprise a first portion and a second portion. The first portion may comprise a high aspect ratio. The second portion may have a width greater than the second portion. A nacelle is disclosed. The nacelle may comprise a first panel and a latch assembly. The latch assembly may include a latch housing and a latch handle. The latch handle may include a first portion and a second portion. The first portion may comprise an aspect ratio greater than one. The second portion may have a width greater than the width of the first portion. A cut-out configured to accommodate the latch assembly may be disposed on the first panel. The first panel may be a fan cowl panel.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 17, 2018
    Assignee: Rohr, Inc.
    Inventors: Michael Aten, Kristian Sitson, John J. Lee, Yibin Deng
  • Patent number: 9926849
    Abstract: An accessory gear box for a gas turbine engine having a drive shaft with a rotational axis and a tower shaft coupled to the drive shaft is provided. The accessory gear box includes a first plurality of gears arranged, which extend along a first axis substantially parallel to the rotational axis of the drive shaft. The accessory gear box includes a second plurality of gears, which extend along a second axis. The accessory gear box includes a first shaft, with one of the first plurality of gears coupled to the first shaft, and one of the second plurality of gears coupled to a second shaft. The one of the second plurality of gears coupled to the first shaft includes a first engagement surface and a second engagement surface, and the second engagement surface is coupled to another one of the second plurality of gears to drive the second shaft.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: March 27, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Cristopher Frost, Mariee Hayden, Michael Stephen Crestin, James Laffan, Mingfong Hwang, Doug Hollingshead, Marc Schmittenberg
  • Patent number: 9909563
    Abstract: A system and method for monitoring and controlling the deflection of rotor blades of a wind turbine so as to prevent tower strikes is disclosed. The method includes operating the wind turbine at standard pitch angle settings. Another step includes monitoring a loading condition of the wind turbine over a predetermined time period. A further step includes tracking a number of wind condition deviations of a certain magnitude occurring during a predetermined time period. The method also include altering one or more of the standard pitch settings of the rotor blades in response to the number of wind condition deviations exceeding a wind deviation threshold and/or the loading condition exceeding a loading threshold as an exceedance indicates an increased probability of rotor blade deflection. The method further includes performing one or more additional corrective actions so as to reduce the probability of a rotor blade tower strike.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 6, 2018
    Assignee: General Electric Company
    Inventors: Mark Lee Cook, Nadine Schuell
  • Patent number: 9903210
    Abstract: A turbine blade tip shroud (22C, 22D) with a seal rail (32C, 32D) oriented in a circumferential direction of rotation (29) relative to a turbine axis, and extending radially outward from the tip relative to the turbine axis. A first tooth (48, 68) and a second tooth (50, 70) form respective downstream and upstream lateral departures or bumps on the seal rail. Each tooth has a sharp top leading edge (48, 50, 68, 70) and a smoothly curved side surface (49, 51, 69, 71). A back portion (56, 76) of the seal rail may span linearly from a lateral peak (66, 78) of the second tooth to a back end (62) of the seal rail that is centered on an extended centerline (60) of a front portion (54, 74) of the seal rail. The teeth may be disposed proximate or over a stacking axis (52) of the blade.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: February 27, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Charles M. Evans, Andrew R. Narcus, John Pula
  • Patent number: 9896946
    Abstract: A rotor assembly includes a rotor disc including a plurality of circumferentially-spaced diskposts and a plurality of dovetail slots. Each dovetail slot is defined between a pair of circumferentially-adjacent diskposts. A plurality of rotor blades are coupled to the rotor disc. Each rotor blade includes a dovetail portion that is configured to slidably engage a respective dovetail slot. A plurality of platform sections are coupled to the rotor disc such that each platform section is adjacent a respective rotor blade. Each platform section includes a diskpost slot that is configured to receive one of the plurality of diskposts such that each dovetail slot receives a respective dovetail portion and at least a portion of at least one of the platform sections adjacent the rotor blade.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: February 20, 2018
    Assignee: General Electric Company
    Inventor: Patrick Daniel Noble
  • Patent number: 9896198
    Abstract: The bearing system is configured for treating and reacting dynamic loading within a rotor hub of rotorcraft. The bearing system includes an outer member having a plurality of alternating outer elastomeric layers and shim layers. The outer member has an inboard surface configured for bonding to an inboard bearing support, and the outer member has an outboard surface configured for bonding to an outboard bearing support. The bearing system has an inner member bonded to an interior surface of the outer member. The inner member can include a rigid inner core, as well as a plurality of elastomeric layers and shim layers configured to react torsional movements of the rotor blade.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: February 20, 2018
    Assignee: Textron Innovations Inc.
    Inventors: Hunter Davis, Frank B. Stamps
  • Patent number: 9890765
    Abstract: Various air deflector shapes, sizes and configurations for use in a load compensating device on an airfoil are provided. The air deflector arrangements are configured to alter the airflow around the air deflector in order to affect sound or acoustics associated with the air deflector when deployed during operation. Some example configurations that may alter the air flow around the air deflector include air deflectors having a plurality of apertures, air deflectors including a scalloped edge, and/or air deflectors including a plurality of protrusions extending from a portion of the air deflector.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: February 13, 2018
    Assignee: GE Infrastructure Technology, LLC
    Inventors: Qing Tian, Jehan Z. Khan, Jonathon P. Baker
  • Patent number: 9885371
    Abstract: A row of aerofoil members for an axial compressor, the row comprises a circumferentially extending endwall and a plurality of aerofoils extending radially from the endwall. The endwall is profiled to include an acceleration region and a deceleration region in a location that corresponds to a position of peak fluid pressure. The acceleration region is provided upstream of the deceleration region such that fluid flow through the compressor and adjacent the endwall is accelerated and then decelerated so as to reduce the peak fluid pressure.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: February 6, 2018
    Assignee: ROLLS-ROYCE plc
    Inventor: James Vincent Taylor
  • Patent number: 9885246
    Abstract: A sealing arrangement for a duct, through a stationary housing, of a shaft which rotates about an axis is provided, wherein a sealing liquid is used for sealing instead of sealing steam. The sealing arrangement includes a seal, having a vapor steam extraction system, and a feed line, which is arranged between the inner space and the vapor steam extraction system and is designed for supplying a sealing liquid, wherein a labyrinth seal, a brush seal with metallic bristles, a brush seal with bristles made of natural fibers and/or a brush seal made of synthetic fibers is provided for sealing off with respect to the inner space and the vapor steam extraction system.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 6, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Johan Flegler, Thomas Helmis, Norbert Surken
  • Patent number: 9879566
    Abstract: A coupling apparatus for use in sealingly connecting a first fluid flow path to a second fluid flow path. The coupling apparatus includes a rigid fluid flow channel having a first end and a second end, wherein the fluid flow channel is substantially rigid in an axial direction and a radial direction, a first sealing terminus that is rigidly connected to the first end and that is configured for sealing with the first fluid flow path, and a second sealing terminus that is slidingly disposed about the second end such that the second sealing terminus is configured for relative movement with respect to the second end, and wherein the second sealing terminus is further configured for sealing with the second fluid flow path.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: January 30, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Mark C. Morris, David R. Waldman, Donald G. Godfrey, Brian G. Baughman, Mark McNair, Justin C. Mickelsen
  • Patent number: 9879544
    Abstract: A turbine rotor blade is provided for a turbine section of an engine. The turbine rotor blade includes a platform and an airfoil extending from the platform into a mainstream gas path of the turbine section. The airfoil includes a first side wall; a second side wall joined to the first side wall at a leading edge and a trailing edge; a tip cap extending between the first side wall and the second side wall; a first parapet wall extending from the first side wall; and a first cooling hole through the tip cap and the first parapet wall configured to deliver cooling air. The first cooling hole has a closed channel section and an open channel section. The open channel section forms a slot.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: January 30, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: David Waldman, Mark C. Morris, Malak Fouad Malak
  • Patent number: 9879537
    Abstract: A gas turbine engine includes an axial high pressure compressor includes a rear hub disposed aft of an aft rotor segment. The rear hub includes an inner surface, an outer surface, and a sealing face, wherein the sealing face is sealingly engaged with the aft rotor segment, and in fluid communication with the cooling channel. The cooling channels are configured to delivery air to contact the inner surface of the rear hub.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: January 30, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: James Hill, Brian Merry, Gabriel Suciu