Patents Examined by Richard A Edgar
  • Patent number: 9828879
    Abstract: A shroud retention system may include a shroud hanger having an outer hanger wall that defines a clip groove including a narrow groove portion and an enlarged groove portion, with the enlarged groove portion defining a radial height that is greater than a radial height of the narrow groove portion. The system may also include a shroud segment having a shroud wall and a retention clip configured to couple the shroud segment to the shroud hanger. The retention clip may include an inner rail, an outer rail and a clip wall extending radially between the inner and outer rails. The inner rail may be configured to extend along an inner surface of the shroud wall. The outer rail may include a narrow rail portion configured to be received within the narrow groove portion and an enlarged rail portion configured to be received within the enlarged groove portion.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: November 28, 2017
    Assignee: General Electric Company
    Inventors: Gregory Kent Sluyter, Alexander Martin Sener, Aaron Michael Dziech
  • Patent number: 9822706
    Abstract: The present invention relates to a subassembly for a gas turbine, in particular a gas turbine aircraft engine, having a turbine casing (11); a midframe (14), which is adjacent downstream to the turbine casing and has a number of support ribs (15) spaced apart in the peripheral direction. The turbine casing and the midframe define a flow duct (33) for a working gas exiting a combustion chamber of the gas turbine, and a cavity, in particular a cooling air duct (19), with an opening on the flow duct side is formed between the turbine casing and the midframe. An edge contour (40) of the opening on the turbine casing side varies along the periphery radially and/or axially.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: November 21, 2017
    Assignee: MTU AERO ENGINES AG
    Inventor: Martin Hoeger
  • Patent number: 9822768
    Abstract: The invention relates to a wind turbine comprising a rotor hub (7) rotating about a rotor axis (8), rotor blades (9, 10, 11) extending radially with respect to the rotor axis (8) at the same angular spacing relative to one another, and a remote wind gauge (19) that is fastened externally on the surface of the hub (7) in a mounting (20) and oriented such that wind characteristics at a distance in front of the hub (7) can be ascertained or measured, wherein the remote wind gauge (19) is arranged between two neighbouring rotor blades (9, 10) and in the radial direction of the rotor axis (8) and the mounting (20) is fastened to a respective blade bearing flange (21, 22) in the region of the connection of the rotor hub (7) to the rotor blades (9, 10), such that the remote wind gauge (19) can be retrofitted to the wind turbine (1).
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: November 21, 2017
    Assignee: SSB Wind Systems GmbH & Co. KG
    Inventor: Norbert K├Âtting
  • Patent number: 9822663
    Abstract: The present invention relates to a fire resistant fan casing for a gas turbine engine. The casing has a projection such as a reinforcing rib or a mounting pad. The projection comprises at least one shell portion formed of a fiber/plastic composite material encasing a core of fire resistant material such as a metallic material or a ceramic matrix composite material.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: November 21, 2017
    Assignee: ROLLS-ROYCE plc
    Inventor: Dale Edward Evans
  • Patent number: 9816396
    Abstract: A system and method is provided for an integrated aircraft turbofan engine outer flowpath ducting and front frame that minimizes assembly interfaces and reduces overall aircraft engine weight. The system and method provide an integrated turbofan engine outer flowpath ducting and front frame system that decouples the fairing/aerodynamic duties from the struts/weight bearing duties thereby enabling efficient distribution of mechanical load.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: November 14, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Justin C. Mickelsen, Laurence David Noble Liston, Mark Knowles, Shawn Alstad
  • Patent number: 9810071
    Abstract: An internally cooled airfoil for a gas turbine engine has a hollow airfoil body defining a core cavity. An insert is mounted in the core cavity. A cooling gap is provided between the insert and the hollow airfoil body. A plurality of standoffs project across the cooling gap. Trip-strips projecting laterally between adjacent standoffs. The trip-strips and the standoffs may be integrated into a unitary heat transfer feature.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 7, 2017
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Michael Papple
  • Patent number: 9810231
    Abstract: A turbocharger assembly can include a housing with a through bore and an axial face disposed in the through bore; a locating plate with a keyed opening attached to the housing; and a journal bearing disposed in the through bore where the journal bearing includes a keyed compressor end and an enlarged outer portion defined between two axial faces by an outer diameter and an axial length where the axial face disposed in the through bore of the housing, the locating plate, and the two axial faces of the journal bearing axially locate the journal bearing in the through bore and where the keyed opening of the locating plate and the keyed compressor end of the journal bearing azimuthally locate the journal bearing in the through bore. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 7, 2017
    Assignee: Honeywell International Inc.
    Inventors: Frederic Daguin, Joel Castan, Nicolas Vazeille, Dominique Armand, Steven Liu, Yong Jun Chen, Shinichi Adachi
  • Patent number: 9810073
    Abstract: A turbine blade includes a cooling channel through which cooling air is passed, and a swirl portion provided at an entrance of the cooling channel so as to form a swirl flow in the cooling air. The turbine blade may increase cooling performance of a root unit, improve the stiffness of the root unit, and increase the internal heat transfer efficiency of a blade unit.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: November 7, 2017
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION Co., LTD
    Inventor: Sung Chul Jung
  • Patent number: 9803939
    Abstract: A method to modify the shape of a channel in a metallic substrate is described. The method includes the step of applying at least one metallic coating on selected portions of an interior surface of the channel, so as to alter the heat transfer characteristics of the channel during passage of a coolant fluid therethrough. Related articles that contain the modified channels are also described, such as gas turbine engine components.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: October 31, 2017
    Assignee: General Electric Company
    Inventor: Ronald Scott Bunker
  • Patent number: 9803483
    Abstract: The invention relates to sheath for a blade that has a uniform assembly direction over the radial height of the sheath whether the blade has a straight or curved trajectory. This is achieved by the a sheath formed around the edge, having a first inner surface wherein a first tangential vector projected tangentially to the first inner surface in a direction away from the head portion in an longitudinal plain forms a first angle with the rotational axis that does not vary over the radial height of the sheath while a second tangential vector projected tangentially from any point of the second inner surface of the sheath in a direction towards the head portion intersects the first tangential vector.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 31, 2017
    Assignee: General Electric Technology GmbH
    Inventors: Rolf Hunziker, Krzysztof Cherek, Sigurd Kubel
  • Patent number: 9803551
    Abstract: The invention concerns a method for manufacturing of a gas turbine engine component (37) comprising an outer ring structure (42, 47), an inner ring structure (41), and a plurality of circumferentially spaced elements (46, 46a, 46b) extending between the inner ring structure (41) and the outer ring structure (42), wherein a primary gas channel for axial gas flow is defined between the elements (46, 46a, 46b), and wherein the component (37) has an inlet side for gas entrance and an outlet side for gas outflow. The invention is characterized in that the method comprises the step of machining a one-piece metal blank as to form a one-piece part (47) comprising: a portion (46b) of each of said elements (46), wherein said portion (46b) relates to a portion of an extension length of the elements (46) between said ring structures (41, 42); and a ring-shaped member (42) that connects said element portions (46b) and that is intended to form part of one of the ring structures.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: October 31, 2017
    Assignee: GKN Aerospace Sweden AB
    Inventors: Lars-Olof Hellgren, Olof Lewin, Kent Holmedahl
  • Patent number: 9802698
    Abstract: A rotor hub configured to support and rotate a plurality of rotor blades about an axis of rotation is includes a cylindrical body having a central shaft hole including the axis of rotation. The shaft hole has a radius extending from the axis of rotation radially. A plurality of radial spokes extends from the cylindrical body in a spoke direction. A plurality of arcuate segments extends between the distal ends of adjacent spokes to define a plurality of hub apertures. The spoke direction extends at an angle to the radial direction in both the horizontal plane, and a vertical plane, perpendicular to the horizontal plane. A line defined by the spoke direction does not intersect the axis of rotation. The spoke direction extends at an angle in the horizontal plane in a direction opposite to a direction of rotation of the rotor hub about the axis of rotation.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: October 31, 2017
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Steven M. Capelle, Kwok Chin, Kevin A. White
  • Patent number: 9797257
    Abstract: A composite article including composite component mounted on a spar including a shank extending heightwise from below component base up into composite component. Tab at an upper end of shank substantially or fully embedded in the composite component and at least one ply surface pattern of the composite component contacting and generally conforming to at least one spar surface pattern on the tab. Spar surface pattern may include spaced apart spar surface protrusions with spar surface spaces therebetween and spar surface protrusions extending outwardly from spar and disposed between tows in ply surface pattern. Tows may be layed up in spar surface spaces. Spar surface pattern may include continuous or segmented spaced spar surface protrusions and spar surface spaces therebetween with tows in ply surface pattern disposed in spar surface spaces. The composite article may be a composite blade or vane including a composite airfoil.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 24, 2017
    Assignee: General Electric Company
    Inventors: Nicholas Joseph Kray, Scott Roger Finn, Peggy Lynn Baehmann, Joel Primmer White
  • Patent number: 9796055
    Abstract: A method of repairing a turbine engine case includes the steps of removing worn material from a retention hook in a casing, and inserting an insert into a recess within the hook.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: October 24, 2017
    Assignee: United Technologies Corporation
    Inventors: Derek W. Anderson, Oleg Ivanov, Michael J. Madel
  • Fan
    Patent number: 9797411
    Abstract: A ceiling fan includes an annular nozzle having an inner wall, an outer wall extending about the inner wall, an air inlet for receiving an air flow, an air outlet for emitting the air flow, and an interior passage located between the inner and outer wall for conveying the air flow to the air outlet. The inner wall defines a bore through which air from outside the nozzle is drawn by the air flow emitted from the air outlet. A support assembly supports the nozzle on a ceiling and includes a ceiling mount for mounting the ceiling fan on a ceiling, an arm having a first end connected to the ceiling mount, and a body connected to a second end of the arm and the annular nozzle. The body is pivotable relative to the arm about a pivot axis to move the annular nozzle between a raised and lowered position.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: October 24, 2017
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Neil Andrew Stewart, Rodney James Brown
  • Patent number: 9790926
    Abstract: Counterweight systems for a wind turbine comprising a hub mounted to a nacelle such that the hub is rotatable around a rotation axis with respect to the nacelle, the hub comprising a blade root region configured to receive a root of a blade and having a pitch system configured to rotate the blade around a pitch axis. The counterweight system comprises a beam mountable to the blade root region at a first point of the beam and a counterweight mass coupled to the beam at a second point of the beam, such that, when the beam is mounted to the blade root region, the beam is arranged substantially perpendicular to the pitch axis and the pitch system can cause the counterweight mass to rotate around the pitch axis. Methods are also provided of mounting one or more blades to a wind turbine hub by using such counterweight systems.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 17, 2017
    Assignee: ALSTOM Renewable Technologies
    Inventor: Santiago Canedo Pardo
  • Patent number: 9790955
    Abstract: A blower wheel for setting a flow of air in circulation has vanes (2) that extend from a vane root attached to a hub (6) of the blower wheel. The hub (6) has a bottom wall (8) through which a through-orifice (12) for a drive shaft of the blower wheel passes, and a side wall (10). The hub (6) also has at least one rib (14) located between the orifice (12) and the side wall (10). The rib (14) is formed by one or more segments (14a, 14b, 14c, 14d). The segment, or one of the segments (14a, 14b, 14c, 14d), has at least one free edge (15) extending from the bottom wall (8) and facing toward the side wall (10).
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: October 17, 2017
    Assignee: VALEO SYSTEMES THERMIQUES
    Inventors: Denis Scouarnec, Antoine Levasseur
  • Patent number: 9790952
    Abstract: A seal monitoring and control system for a gas lubricated non-contacting seal includes various sensors providing signals to a programmable logic control system. The control system is disposed to determine a presence of an anomalous operating condition of the seal, for example, based on phase, relative position of rotor to stator or other signals in combination provided by the various sensors to provide an output signal, which in one embodiment performs at least one mitigating process to correct the anomalous operating condition by adjusting at least one operating parameter of the seal.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: October 17, 2017
    Assignee: John Crane Inc.
    Inventors: Elhanafi Shamseldin, Joe Delrahim, Paul A. Hosking, Joseph L. Savio, Vladimir Bakalchuk
  • Patent number: 9784125
    Abstract: A blade outer air seal (BOAS) includes a body defining a core having a forward cavity portion and a plurality of forward hooks extending radially from the body, the hooks extending to a hook height. The BOAS includes a seal surface defined between the forward hooks and which includes a forward side, an aft side, and a seal surface height. The seal surface is aft of the forward cavity portion. The BOAS includes a thermal regulation channel defining an inlet aft of the sealing surface and an outlet defined in fluid communication with the forward cavity portion.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: October 10, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Brian Duguay, Dmitriy A. Romanov
  • Patent number: 9784275
    Abstract: The invention relates to a centrifugal pump for conveying a gaseous suspension, in particular a fiber pulp suspension, which has a pump impeller (12) with at least one opening (15) in the base plate and ribs (16) on the rear side, where a separator unit (17) is provided consisting of a separator housing (25) with a stationary disc (18) and a disc (22) that rotates together with the pump shaft (21), where the separator unit (17) is arranged in the pump housing adjoining the pump impeller (12) on its rear side when viewing the pump impeller (12) in axial direction and where the separator housing (25) has a gas collecting chamber (31) with a gas discharge pipe (28). It is characterized by the disc (22) that rotates together with the pump shaft (21) having a closed surface (23) without openings. As a result, pulp losses are reduced and the centrifugal pump achieves better stability when pumping a gaseous suspension, particularly a fiber pulp suspension.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 10, 2017
    Assignee: ANDRITZ AG
    Inventor: Ludwig Michal