Patents Examined by Kenneth Bomberg
  • Patent number: 10598182
    Abstract: There is provided a ventilation apparatus with counter-rotating impellers driven by long shaft, wherein an electric motor and a gearbox are placed outside the air duct by using a long shaft with an internally disposed slim shaft extending therefrom, and are connected with the first stage impeller and second stage impeller inside the air duct by using the long shaft and slim shaft extending therefrom. In this ventilation apparatus with counter-rotating impellers, the components of the ventilation apparatus are placed inside and outside the air duct respectively by using the transmission shaft, which is convenient for maintenance and operation. By remotely arranging the impellers at an axial distance, the hub of the impellers will no longer be affected by an internally disposed electric motor, so as to reduce the ventilation resistance to ventilation. The impellers can be switched between the single impeller rotation and the counter rotation of two impellers.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 24, 2020
    Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGY
    Inventors: Ziming Kou, Juan Wu, Guijun Gao, Shanrong Da, Jing Zhang, Yanfei Kou, Ting Li, Sheng Li, Jin Wei
  • Patent number: 10590904
    Abstract: A vane body of a guide vane includes a leading edge, and a trailing edge which is located closer to a runner than the leading edge, when located radially outside the runner. A projection extending in a direction from the trailing edge toward the leading edge is provided on an internal-diameter side blade face of the vane body, at least in any one of one side area of the internal-diameter side blade face and the other side area thereof in an axial direction of a guide vane rotation shaft, the internal-diameter side blade face being disposed on a side of the runner. The projection has a projection rear end of an arcuate shape, which projection rear end is formed to extend along a rotation trajectory which is drawn by the trailing edge when the vane body is rotated about the guide vane rotation shaft.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 17, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Madoka Narikawa, Hideyuki Kawajiri, Norio Ohtake, Koichi Kubo, Toshifumi Kurokawa, Nobuaki Noda
  • Patent number: 10584710
    Abstract: A sealing arrangement for sealing a pressure chamber in a high pressure pump which is bound by a first and a second bounding element, includes a separate sealing element which has a first sealing surface for co-operating with the first bounding element, as well as having a second sealing surface for cooperating with the second bounding element. The two sealing surfaces are inclined with respect to one another and each have a groove for receiving a sealing ring. The sealing element is arranged in such a way that it can be displaced totally along one of the bounding elements on the application of pressure.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: March 10, 2020
    Assignee: SULZER MANAGEMENT AG
    Inventors: Thomas Welschinger, Marco Carvalho
  • Patent number: 10584604
    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 in both the axial direction and the circumferential direction is provided. Here, a front member blade row with front blades as well as a rear member blade row with rear blades are provided in the meridional plane established by the axial direction and the radial direction. The blade row group has two main flow path boundaries. It is provided that the blades of the member blade rows are fixed to the one main flow path boundary in the surrounding structure by means of a blade root structure, and that the blades of the member blade rows on the other main flow path boundary are each firmly connected to a base.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: March 10, 2020
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Volker Guemmer
  • Patent number: 10577977
    Abstract: An assembly adapted for use in a gas turbine engine has a plurality of segments arranged to form an annular shape and seal elements arranged circumferentially between the segments. The assembly further includes retention means for restraining movement of the plurality of seal members in the radial direction away from a central axis and out of position relative to the plurality of segments.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: March 3, 2020
    Assignee: Rolls-Royce Corporation
    Inventor: Alexandra R. Baucco
  • Patent number: 10577953
    Abstract: A stator vane is comprised of: an airfoil section elongated in a radial direction relative to an axis; an outer band section continuous to an outer end of the airfoil section and bent in a circumferential direction relative to the axis; a first hook section continuous to a leading end in the axial direction of the outer band section and bent outward in the radial direction; a second hook section continuous to a trailing end in the axial direction of the outer band section and bent outward in the radial direction; an inner band section continuous to an inner end of the airfoil section and bent in the circumferential direction; a flange section continuous to an end in the axial direction of the inner band section and bent inward in the radial direction; and a reinforcement fiber fabric continuous throughout these sections and unitized with a ceramic.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: March 3, 2020
    Assignee: IHI Corporation
    Inventor: Fumiaki Watanabe
  • Patent number: 10570791
    Abstract: The present invention describes a device of a jet engine with at least one component arranged in a casing and designed rotatable relative to said casing. At least one air-oil volume flow can be passed out of an area of the jet engine into the casing. In accordance with the invention the air-oil volume flow can be introduced into the casing via an introducing facility at least approximately tangentially to an area of the rotatable component close to at least an outer circumferential area.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 25, 2020
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Juergen Beier
  • Patent number: 10563673
    Abstract: A centrifugal compressor for a chiller includes a casing, an inlet guide vane, an impeller downstream of the inlet guide vane, a motor and a diffuser. The casing has inlet and outlet portions with the inlet guide vane disposed in the inlet portion. The impeller is rotatable about a rotation axis defining an axial direction. A liquid injection passage is provided to inject liquid refrigerant into an area between the impeller and the diffuser. The motor rotates the impeller. The diffuser is disposed in the outlet portion downstream from the impeller with an outlet port of the liquid injection passage being disposed between the impeller and the diffuser. A controller is programmed to control an amount of the liquid refrigerant injected into the area between the impeller and the diffuser.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: February 18, 2020
    Assignee: DAIKIN APPLIED AMERICAS INC.
    Inventors: Nobuhiro Umeda, Md Anwar Hossain, Takatoshi Takigawa
  • Patent number: 10563537
    Abstract: An apparatus includes first, second, and third layers. The first layer includes a plurality of flanges. The second layer includes a deformable membrane. The second layer is connected to the first layer along a first major surface of the deformable membrane. The third layer is connected to the second layer along a second major surface of the deformable membrane opposite the first major surface. The third layer includes a first series of internal structures.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 18, 2020
    Assignee: United Technologies Corporation
    Inventors: Wendell V. Twelves, Jr., Evan Butcher, Lexia Kironn, Joe Ott, Gary D. Roberge
  • Patent number: 10550725
    Abstract: Aspects of the disclosure are directed to a system for an engine having an axial centerline, comprising: a diffuser case, a turbine case, and a turbine vane support, where the diffuser case and the turbine case are coupled to one another via a substantially radially oriented flange, where the turbine vane support includes a heat shield for the flange, and where the turbine vane support includes a radially outward projecting tab that couples to the turbine case via a radial interference fit.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: February 4, 2020
    Assignee: United Technologies Corporation
    Inventors: Jonathan J. Eastwood, Timothy Dale
  • Patent number: 10544688
    Abstract: The invention relates to a reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, characterized in that said reinforcement is produced by stacking at least two parts produced by pultrusion. A reinforcement, containing fibers and resin, for an element made of a composite material, particularly a wind turbine blade, is characterized in that the reinforcement is produced by stacking at least two parts produced by pultrusion.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 28, 2020
    Assignee: EPSILON COMPOSITE
    Inventors: Stephane Lull, Denis Ferrer, Jose Portoles
  • Patent number: 10544696
    Abstract: Disclosed is a sealing ring for a turbomachine, which is constructed so as to be fastened at a radially inner region of a plurality of guide vanes and rotate around a rotor shaft. The sealing ring comprises a ring part that extends in the axial direction and has a plurality of stiffened portions in succession in the peripheral direction. Further disclosed is a seal for a turbomachine that comprises such a sealing ring as well as a brush and/or run-in coating sealing ring that is to face a rotor shaft, and a method for the manufacture of a sealing ring.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 28, 2020
    Assignee: MTU Aero Engines AG
    Inventors: Markus Schlemmer, Otto Liebscher, Oliver Thiele
  • Patent number: 10543915
    Abstract: A propeller assembly includes propeller blades that self-fold when not in use, which reduces the overall footprint of the propeller assembly and enables efficient storage. During flying conditions, the propeller blades unfold and extend to a flight configuration that enables the generation of lift on the propeller blades and consequently to an attached aerial vehicle. In various embodiments, the transitioning of the propeller blades between a flight and folded configuration may be enabled by torsion springs coupled to each propeller blade. For example, the torsion springs cause each propeller blade to rotate and self-fold when no external forces are applied. Alternatively, during flying conditions, centrifugal forces that arise as the propeller assembly rotates counteract the torsion springs, enabling each propeller blade to achieve an extended flight configuration. Therefore, the propeller blades of the propeller assembly are optimally oriented without the need for human intervention.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: January 28, 2020
    Assignee: GoPro, Inc.
    Inventor: Ryan Goldstein
  • Patent number: 10538317
    Abstract: In some embodiments, a rotorcraft includes an engine, a rotor hub assembly mechanically coupled to the engine and a plurality of rotor blade assemblies rotatably mounted to the rotor hub assembly. Each of the rotor blade assemblies includes a rotor blade having a leading edge and an erosion shield system extending spanwise along the leading edge of the rotor blade. The erosion shield system includes a plurality of erosion shield segments positioned adjacent to one another forming joints therebetween wherein, the joints deform responsive to strain experienced by the rotor blade, thereby isolating the erosion shield segments from at least a portion of the strain experienced by the rotor blade.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 21, 2020
    Assignee: Textron Innovations Inc.
    Inventors: Jeffrey Paul Nissen, John Richard McCullough
  • Patent number: 10519801
    Abstract: An annular air flow passage, particularly for a turbine engine, comprising two radially internal and external annular walls. A measuring element is elongated in a direction between the internal and external annular walls, and a first of the internal or external ends of the element is fixed rigidly to a first of the internal or external walls. The element includes at least one tubular cavity extending along the element and supplied with pressurized fluid.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 31, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Jérémy Giordan, Valentine Lucette Bader, André Pierre Jean Xavier Leroux, Stéphane Rousselin
  • Patent number: 10501174
    Abstract: A rotor hub assembly includes an open rotor hub assembly with an open rotor hub and a mounting plate. The open rotor hub includes an annular base portion with periphery and a plurality of rotary member portions arranged about the annular base portion that each define an aperture for receiving a rotor blade. The mounting plate spans the annular base portion and is coupled to the annular base portion by a resilient member to accommodate radially expansion and contraction of the annular base portion according to loads exerted on the rotor hub by rotor blades seated in the apertures of the rotary member portions.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: December 10, 2019
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Stephen Johnston, James Mccollough
  • Patent number: 10495115
    Abstract: The invention is directed to a portable power working machine in which a casing has a side surface in which a suction port is provided. A block prevention guard is attached to the side surface of the casing. The block prevention guard comprises a top surface opening formed in the block prevention guard to at least partially overlap the suction port. The block prevention guard further comprises a plurality of legs standing from the side surface of the casing to maintain the top surface opening at a distance from the side surface. In addition to the top surface surface, an air flow window is formed between two adjacent legs in the circumferential direction of the top surface opening.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: December 3, 2019
    Assignee: YAMABIKO CORPORATION
    Inventors: Masahiko Takashima, Yusuke Kinoshita
  • Patent number: 10450875
    Abstract: Various geometries for a trailing edge cooling system for a turbine blade. The trailing edge cooling system may include a plurality of cooling circuits extending at least partially along a radial length of a trailing edge of the turbine blade. Each cooling circuit may include an outward leg extending axially toward the trailing edge, and a plurality of turn legs in fluid communication with the outward leg. The plurality of turn legs may be positioned adjacent the trailing edge. Each cooling circuit may also include a return leg positioned adjacent the outward leg and extending axially from the trailing edge. The return leg may include a first portion and a second portion. The first portion may have a first width, and a second may have a second width that is greater than the first width of the first portion.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: October 22, 2019
    Assignee: General Electric Company
    Inventors: David Wayne Weber, Sandip Dutta, Brendon James Leary
  • Patent number: 10450892
    Abstract: A turbine casing may comprise a casing body and a first heat pipe disposed in the casing body. The first heat pipe may comprise a first working medium. The first heat pipe may include a first vaporization section and a first condensation section. The first vaporization section may be located forward the first condensation section. A second heat pipe may be disposed in the casing body and may comprise a second working medium different from the first working medium.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 22, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Ram Ranjan
  • Patent number: 10436213
    Abstract: An actuation system is provided for varying the pitch of the blades of a variable pitch fan or propeller. The actuation system includes a first actuator and a second actuator. The actuation system further includes a first linkage which operably connects the first actuator to the blades such that operation of the first actuator varies the pitch of the blades via the first linkage. The actuation system further includes a second linkage which operably connects the second actuator to the first actuator such that operation of the second actuator varies the pitch of the blades by series connection of the second linkage to the first linkage.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 8, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventor: Christopher M Grice