Patents Examined by Ninh H. Nguyen
  • Patent number: 10704560
    Abstract: A centrifugal impeller shroud assembly has a dynamically moveable impeller shroud for encasing a rotatable centrifugal impeller and resolving misalignment between the impeller shroud and the rotatable centrifugal impeller. The assembly comprises a static casing, an impeller shroud, a shroud arm, and a thermal member. The shroud arm is coupled between the casing and the impeller shroud. The thermal member is coupled to the impeller shroud and has a coefficient of thermal expansion (CTE) lower than the CTE of the shroud. The shroud arm comprises a flexible portion configured to flex responsive to a differential pressure across the shroud arm.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 7, 2020
    Assignee: Rolls-Royce Corporation
    Inventors: Grace Aker, Michael Nesteroff, Mark Eric Whitlock, Cassandra Cummings, Jonathan Acker, Younes Khamliche, Nathanael Cooper
  • Patent number: 10704392
    Abstract: A turbine rotor blade including an airfoil, tip shroud, and fillet formed therebetween. The fillet defines a fillet profile variable about the intersection for connecting the tip shroud and airfoil and facilitating aerodynamic airflow. The fillet includes a pressure side fillet. The pressure side fillet comprises a pressure side fillet profile per points within a first set of points of X, Y and Z coordinate values in a Cartesian coordinate system, as set forth in Table I, where X, Y and Z are distances in inches from an origin and, when the points are connected by smooth, continuing arcs, the points define the pressure side fillet profile of the pressure side fillet. The first set of points includes points between and including point 1 and point 50 of each reference plane between and including a reference plane H and a reference plane W, as set forth in Table I.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 7, 2020
    Assignee: General Electric Company
    Inventors: William Scott Zemitis, Melbourne James Myers, Richard Ryan Pilson, Jacob Charles Perry, II
  • Patent number: 10704410
    Abstract: An unducted thrust producing system has a rotating element with an axis of rotation and a stationary element. The rotating element includes a plurality of blades, and the stationary element has a plurality of vanes configured to impart a change in tangential velocity of the working fluid opposite to that imparted by the rotating element acted upon by the rotating element. The system includes an inlet forward of the rotating element and the stationary element.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: July 7, 2020
    Assignee: General Electric Company
    Inventors: Darek Tomasz Zatorski, Jeffrey Hamel, Andrew Breeze-Stringfellow
  • Patent number: 10704526
    Abstract: Through dividing all blades into four or more blade groups including a certain number, which is three or more, of the blades, the blade located in the rearmost portion of each blade group in a direction of rotation is selected as a main blade, and remaining blades are selected as auxiliary blades, the length of each of the auxiliary blades is set to be shorter than the length of the main blade, and corresponding inner edge portions are positioned to the front, in the direction of rotation, of a normal line that passes through an outer edge portion of the blade, and an extension line of a chord line that connects the outer edge portion and the inner edge portion of the blade to one another are made to intersect with the main blade that is adjacent to the front in the direction of rotation.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: July 7, 2020
    Inventor: Hidemi Kurita
  • Patent number: 10697241
    Abstract: A method and apparatus according to which an output of a power generation system is controlled. In one embodiment, the power generation system includes a turbine and a feedback control system. The turbine includes a rotor to which a first portion of a power fluid is communicated, the first portion imparting torque to the rotor; a shaft to which the rotor is connected; a shroud extending circumferentially about the rotor and the shaft; and a bypass gap between the rotor and the shroud, through which a second portion of the power fluid is communicated. The feedback control system axially displaces the shroud relative to the rotor, thereby adjusting the size of the bypass gap and, consequently, the ratio of the first portion relative to the second portion.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: June 30, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Larry DeLynn Chambers, Joe Marzouk, Olumide O. Odegbami, Mukul M. Agnihotri
  • Patent number: 10696389
    Abstract: A device for controlling a collective pitch and a cyclic pitch of rotor blades of a rotoreraft of a direct turbine driven type and contra-rotating coaxial rotor type (DTDR) includes: a lower rotor and an upper rotor that are mounted concentrically on a shared rotor shaft; a first plate, that is not rotatable, fastened to a structure of the rotorcraft and connected to an actuator that communicates collective pitch and cyclic pitch controls to it, the first plate being mounted so as to be movable in translation along the shared rotor shaft and to oscillate relative to the shared rotor shaft, via a lower ball joint mechanism; and a second plate, that is rotatable, housed on the lower ball joint mechanism so as to be always parallel to the first plate, the second plate being driven in rotation by a member connecting it to the lower rotor.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 30, 2020
    Assignee: SAGITA SA
    Inventor: Hubert Antoine
  • Patent number: 10697467
    Abstract: A fan wheel has a hub cup and a plurality of blades which are arranged on the hub cup and extend radially outward from an outer wall of the hub cup which is in particular at least substantially cylindrical. Each blade has a leading edge and a trailing edge, wherein for at least one blade, an axial unit depth z*(t) of the blade has an aperiodically wave-like shape. A radiator fan module has a fan wheel of the type described above, and the fan wheel can be used in a motor vehicle.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 30, 2020
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
    Inventors: Christian Froh, Michael Mauss
  • Patent number: 10697300
    Abstract: A rotor has a rotor body having: a flange with a circumferential array of discontiguous apertures; and a surface spaced apart from the flange. One or more rotor balance weight assemblies each have a weight and a fastener. The weight has: a passageway having a first end and a second end; an internal thread along the passageway; and a boss at the first end of the passageway. The boss is in a respective one of the apertures. The fastener has: a shank having a first end and a second end and an external thread engaged to the passageway internal thread; an engagement feature at the shank first end for engagement by a tool to turn the fastener; and a head at the second end contacts the surface.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 30, 2020
    Assignee: Raytheon Technologies Corporation
    Inventor: Richard W. Rosborough
  • Patent number: 10696366
    Abstract: Provided is a ship propelling apparatus including a rotation shaft on which a rear propeller is fixed; a front propeller rotatably supported on the rotation shaft in front of the rear propeller; and a counter-rotating device through which the rotation shaft passes, which includes a gear box including therein a plurality of gears configured to reverse rotation of the rotation shaft and transfer the reversed rotation to the front propeller, and which is installed in an installation space formed at the rear of a ship. The rotation shaft includes a measurement hole formed to pass through a center of the rotation shaft for centering of the counter-rotating device installed in the installation space; and an individual lubricant path separated from the measurement hole.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG HEAVY IND. CO., LTD.
    Inventors: Se-Myun Oh, Hyun-Sang Park, Tae-Goo Lee, Dong-Hyun Lee, Tae-Sik Lee
  • Patent number: 10697423
    Abstract: A method to dispose at least one air guiding tube between a penstock and a water turbine installed on a dam to form negative pressure at an outlet of the air guiding device by the water kinetic energy produced from high speed of water flow to take in external air for pressurizing, so as to produce a plurality of pressured air bubbles mixed into the water. The water with pressured air bubbles would be decompressed when flowing to an exit of the penstock and has their volumes increased, so as to enhance the water kinetic energy for driving the water turbine more efficiently; meanwhile the method can prevent from production of cavities and further avoid damages of the components of the water turbine from cavitation.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 30, 2020
    Inventor: Zuei-Ling Lin
  • Patent number: 10690139
    Abstract: A multi-stage pump featuring first and second stages, each stage having an impeller arranged on a rotor of the pump, each impeller having a hub-side and an eye-side, and each impeller configured to pump a liquid through the pump that applies an axial thrust load caused by a pressure difference in an axial direction from the hub-side to the eye-side of each impeller; and a first and second stage pump casing, each casing configured to form a casing enclosure to contain components of the first stage and the second stage, including each impeller, and configured with one or more pump casing openings formed therein and passing thru the pump casing to leak at least some liquid being pumped from inside to outside the casing enclosure to reduce substantially the axial thrust load caused by the pressure difference in the axial direction from the hub-side to the eye-side of each impeller.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 23, 2020
    Assignee: ITT MANUFACTURING ENTERPRISES LLC
    Inventors: Paul Walter Behnke, Timothy Michael Dach, Carlos Preciado
  • Patent number: 10677255
    Abstract: The shaft seal arrangement for a rotating turbomachine shaft having a rotation axis, comprises a rotor part and a stationary part. A dry gas seal is further provided, in combination with a cooling fluid volume arranged for receiving a cooling fluid and in heat exchange relationship with the dry gas seal. A venting arrangement collectively vents exhaust cooling fluid and dry sealing gas from the shaft seal arrangement.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 9, 2020
    Assignee: NUOVO PIGNONE SRL
    Inventors: Leonardo Baldassarre, Andrea Cianti, Simone Amidei, Alberto Armenzani, Emanuele Rizzo
  • Patent number: 10677075
    Abstract: Rotor assemblies and methods for manufacturing airfoils for rotor assemblies are provided. For example, a rotor assembly comprises a rotary structure extending circumferentially about an axial centerline of a gas turbine engine, an airfoil having a root and a tip, and a pin extending through the root. The root is coupled to the rotary structure and has a bulbous shape, and the airfoil is formed from a plurality of composite plies. The pin defines both a planar first surface and a planar second surface on a pin body having a generally circular cross-section. Further, the pin includes a first end and a second end that contact the rotary structure. The first and second surfaces together form a point that is oriented toward the tip of the airfoil. In one embodiment, the rotary structure is an outer rotor of an interdigitated rotor assembly and the airfoil extends radially inward.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: June 9, 2020
    Assignee: General Electric Company
    Inventor: Matthew Mark Weaver
  • Patent number: 10677099
    Abstract: A turbocharger (1), having a turbine (2) for expanding a first medium, having a compressor (3) for compressing a second medium utilizing energy extracted in the turbine (2) during the expansion of the first medium, wherein the turbine (2) has a turbine housing (4) and a turbine rotor (5). The compressor (3) has a compressor housing (6) and a compressor rotor (7) that is coupled to the turbine rotor (5) via a shaft (8). The turbine housing (4) and the compressor housing (6) are each connected to a bearing housing (9) arranged there between, in which the shaft (8) is mounted. The turbine housing (4) has an inflow housing (11), a nozzle ring (15) with guide blades (16) and an insert piece (13). The nozzle ring (15) is centered and radially guided by a projection (17) on the bearing housing (9).
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 9, 2020
    Assignee: MAN Energy Solutions SE
    Inventor: Björn Hossbach
  • Patent number: 10669021
    Abstract: An airfoil member can have a root end, a tip end, a leading edge, and a trailing edge. The airfoil member can include an upper skin, a lower skin, and a composite core member having a plurality of cells, an upper surface network of the cells can be bonded to the upper skin, a lower surface network of the cells can be bonded to the lower skin. The composite core can have a septum layer embedded in the cells that form the composite core, the septum layer being configured to provide tailored characteristics of the airfoil member.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: June 2, 2020
    Assignee: Textron Innovations Inc.
    Inventors: Paul K. Oldroyd, Wei-Yueh Lee, James D. Hethcock, Jr., John R. McCullough, Patrick R. Tisdale
  • Patent number: 10669022
    Abstract: A bearing arrangement for use with a structure defining an outer surface which expands and contracts inward and outward relative to the structure includes, a member having at least one inner surface to face the outer surface, and at least one protrusion extending from the inner surface, the at least one protrusion being biased toward and in contact with the outer surface and maintains contact as the structure expands and contracts.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: June 2, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David H. Hunter, Eric Lucien Nussenblatt
  • Patent number: 10669859
    Abstract: A turbine stator vane or turbine rotor vane has a body, a channel being adapted for leading a cooling fluid through the body, and a flow adaption feature protruding from the body to the channel in such a manner as to reduce a cross-sectional area of the channel.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: June 2, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stephen Batt
  • Patent number: 10669879
    Abstract: A turbine case cooling system comprises a manifold (21) radially adjacent a portion of a radially outer surface of the turbine case (26) and in fluid communication with one or more of radially inwardly directed outlets (25). The manifold (21) has a first inlet (22) and a second inlet (23). The first inlet (22) is obstructed by a first flow restrictor (22a) and the second inlet (23) is obstructed by a second flow restrictor (23a). The first inlet (22) includes a valve (24) upstream of the first flow restrictor (22a) and the valve is adjustable to control flow of fluid supply entering the first inlet (22).
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 2, 2020
    Assignee: ROLLS-ROYCE PLC
    Inventor: Simon Pitt
  • Patent number: 10670034
    Abstract: An impeller includes a hub and a plurality of blades. Each blade extends out from the hub. The impeller has an original diameter defined by respective tips of the plurality of blades. Each blade includes a central axis, a leading edge, a trailing edge, an original profile, and a plurality of trim profiles. The original profile has an outside portion and a trailing portion. The outside portion has an angle within a range of about 40° to about 90° from the central axis and the trailing portion having an angle within a range of about 10° to about 50° from the central axis. A first selected trim profile of the plurality of trim profiles extends along a first line parallel to the outside portion and a second line parallel to the trailing portion.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: June 2, 2020
    Assignee: SPX Flow, Inc.
    Inventors: Richard Howk, Richard Kehn, Aaron Strand
  • Patent number: 10670301
    Abstract: An apparatus for heating and impelling a fluid may comprise a housing, and an air heating impeller assembly positioned in the housing and configured to impel and heat the fluid moving through the housing. The air heating impeller assembly may comprise a support shaft, and a plurality of disks on the support shaft and spaced from each other to form fluid flow gaps therebetween. A disk may comprise a hub portion, an annular portion located radially outward from the hub portion, and a plurality of spoke portions connecting the annular and hub portions. The hub, annular and spoke portions of a disk may be formed of an integral part. A magnetic assembly may be configured to apply a magnetic field of adjustable intensity to the disks.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: June 2, 2020
    Assignee: PDS, LLC
    Inventor: Joe Waldner