Patents Examined by Christopher Verdier
  • Patent number: 11105335
    Abstract: A radial fan that includes a fan wheel, which can be rotated about an axis and which comprises a base plate and airfoils protruding from the base plate, wherein the airfoils each comprise an upstream edge in a first spacing (r1) from the axis and a downstream edge in a second spacing (r2) from the axis, and an end wall, which together with the base plate, delimits a flow channel in which the airfoils engage. The cross-sectional area (A) of the flow channel between the upstream edge and the downstream edge passes through a maximum in a third spacing (r3) from the axis. The difference between a fourth spacing (r4) and a fifth spacing (r5), at which the cross-sectional area (A) in each case assumes nearest adjacent minima to the maximum, is at least half of the difference (r2?r1) between the first and the second spacing.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: August 31, 2021
    Assignee: ebm-papst St. Georgen GmbH & Co. KG
    Inventors: Peter Ragg, Christian Moosmann
  • Patent number: 11105344
    Abstract: An aerofoil component (10) defining an in use leading edge (16) and a trailing edge (18), the leading edge (16) comprising at least one serration (22) defining a sawtooth profile projecting in a generally upstream direction, each serration (22) comprising a plurality of rectangular-wave projections (26) extending in an upstream chordwise direction from the sawtooth profile.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: August 31, 2021
    Assignee: ROLLS-ROYCE plc
    Inventors: Philip Joseph, Chaitanya Paruchuri
  • Patent number: 11097831
    Abstract: A nosecone assembly having an axially extending centerline is provided. The assembly includes a nosecone body and at least one access panel. The nosecone body has at least one wall that defines an interior cavity. The wall has an interior surface contiguous with the interior cavity, and at least one window aperture extending through the wall. The access panel has first and second face surfaces. The access panel is attached to the wall interior surface within an attachment region that includes first and second attachment region portions partially contiguous with one another. The first and second attachment region portions define an interior unattached region, and the interior unattached region is aligned with the window aperture.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: August 24, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: John Harner, James J. McPhail
  • Patent number: 11098725
    Abstract: A hydrodynamic heater pump may include a housing and a stator fixed relative to the housing. A rotor may be coaxially aligned with and positioned adjacent the stator. The rotor and the stator define an interior region of a hydrodynamic chamber operable for heating a fluid present within the interior region of the hydrodynamic chamber. The rotor may be attached to a drive shaft for concurrent rotation therewith. The rotor may be moved axially along an axis of rotation of the drive shaft between a pumping mode position and a heating mode position. The rotor may be located a first distance from the stator when arranged in the heating mode position and a second distance from the stator when arranged in the pumping mode position. The second distance may be greater than the first distance.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: August 24, 2021
    Assignee: Ventech, LLC
    Inventors: Jeremy Sanger, Franco Garavoglia
  • Patent number: 11092131
    Abstract: A turbine (1) for a conduit comprising a turbine unit (13) including a rotor (3), characterized in that the turbine (1) comprises a speed limiting device for said turbine unit (13), which device comprises at least one flexible element (4) connected to the turbine unit (13), so as to limit the flow rate of the fluid passing through the rotor (3) in order to limit the rotational speed of the rotor (3) of the turbine unit (13).
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 17, 2021
    Inventor: Gilles Lambinet
  • Patent number: 11073127
    Abstract: A turbine is provided which effectively converts the kinetic energy of the wind, after its (wind) accelerating, to electrical power. The multi-stage wind turbine, which allows multiple accelerate directed air flow (wind), even of most minimal speed, up to strong wind and convert it's energy into electrical power, is proposed. It is achieved due to modularity of installation, where the wind is accelerated within each module due to the processes of capturing the initial wind flow, injection-ejection and aerodynamic Coanda effect as well, by virtual necks and conical confusors nested one into another. The system of truncated cones and virtual necks with optimum aerodynamic sizes provides the capture of the airflow not only perpendicular to the base of these cones, but also from lateral sides of these cones.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: July 27, 2021
    Assignee: Kazakh-British Technical University, JSC and NUSSU
    Inventors: Kair Nussupov, Iskander Beisembetov, Bagdaulet Kenzhaliev, Nurzhan Beisenkhanov
  • Patent number: 11073034
    Abstract: A seal assembly extends along an axis and seals an axial (and/or radial) gap between a first component and a second component. The seal assembly includes a seal carrier and a seal element. The seal element extends axially (and/or radially) between a first portion and a second portion. The first portion of the seal element is slidingly arranged within a slot in an axial end (or a radial side) of the seal carrier. The second portion of the seal element is configured to axially (and/or radially) engage the second component.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: July 27, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Paul M. Lutjen, Timothy M. Davis, Mark J. Rogers
  • Patent number: 11066949
    Abstract: The present invention relates to a guide vane ring element for a turbomachine, such as a gas turbine, with at least one drilled hole for the at least partial uptake of a flange of a rotatable guide vane, wherein an edge of the drilled hole on the vane element side is designed convexly along the edge in a first circumferential portion and, in particular, has a radius.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: July 20, 2021
    Assignee: MTU Aero Engines AG
    Inventors: Vitalis Mairhanser, Birgit Effner, Alexander Halcoussis, Hannes Wolf
  • Patent number: 11052982
    Abstract: A blade member includes a leading edge, a trailing edge, and a blade body extending therebetween. The blade member also includes a dovetail, a transition region, and a transition relief. The dovetail includes a dovetail chord line extending between an axially forward face of the dovetail and an axially aft face of the dovetail. The dovetail chord line has a dovetail chord length. The transition region is formed between the blade body and the dovetail. The blade body and the transition region form a blade body transition chord line at the interface of the blade body and the transition region which has a blade body transition chord length. The transition relief includes a geometric relief in at least one of a forward and an aft end of the transition region and the dovetail. The dovetail chord length is less than the blade body transition chord length.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: July 6, 2021
    Assignee: General Electric Company
    Inventors: Nicholas Joseph Kray, Stefaan Guido Van Nieuwenhove, Peggy Lynn Baehmann
  • Patent number: 11053846
    Abstract: The invention relates to an intermediate housing hub (2) comprising a discharge stream conduit (18) having a given length (L1), and discharge fins (22) extending in the discharge stream conduit (18) and having a given chord length (L2), the chord length (L2) of at least one of the discharge fins (22) being at least equal to 50% of the length of conduit (L1).
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 6, 2021
    Inventors: Julien Antoine Henri Jean Szydlowski, Romain Nicolas Lagarde, Ghislain Maxime Romuald Madiot, Benjamin Lukowski
  • Patent number: 11053808
    Abstract: A vane comprises an airfoil extending from a radially outer platform to a radially inner platform. A pair of legs extend radially inwardly from the radially inner platform, and an air flow passage extends through the radially outer platform, through the airfoil, and into a chamber defined between the pair of legs. One of the pair of legs includes a plurality of injector holes, configured to allow air from the radially outer platform to pass outwardly of the holes. A gas turbine engine is also disclosed.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: July 6, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Russell J. Bergman, Charles C. Wu, Brett Alan Bartling
  • Patent number: 11041482
    Abstract: An impeller locking device for a wind generator is provided. The impeller locking device includes a locking hole formed on an impeller connecting disc, and a locking pin configured to fit into the locking hole. The locking pin is connected with a base of the wind generator; and when the locking pin is locked in the locking hole, a radial clearance is provided between the locking pin and the locking hole. When the axes of the locking pins and the locking holes are deviated radially, the locking pins can also be inserted into the locking holes, so that radial constraints of the locking pins and the locking holes are eliminated. A wind generator adopting the impeller locking device is further provided.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: June 22, 2021
    Assignee: Beijing Goidwind Science & Creation Windpower Equipment Co., Ltd.
    Inventor: Zhennian Su
  • Patent number: 11035234
    Abstract: An airfoil for a working fluid path of a turboengine extends along a spanwidth direction from a base to a tip. An aerodynamic body thereof includes a suction side surface, a pressure side surface, a leading edge, a trailing edge and a tip, the tip of the aerodynamic body having a tip cross section and a cross-sectional contour circumscribing the tip cross section. A rim extends to the tip of the airfoil and follows the cross-sectional contour on the pressure side, the suction side and extends over the leading edge of the airfoil, the rim delimiting a tip cavity which is open at the tip of the airfoil. The rim is further open at the trailing edge of the airfoil such that the tip cavity is open at the trailing edge of the airfoil.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 15, 2021
    Inventors: Shailendra Naik, Christian Sommer
  • Patent number: 11028697
    Abstract: A fan section for a gas turbine engine is disclosed herein. The fan may include a rotor disk and a plurality of airfoils fixedly attached to and supported by the rotor disk as a single unitary piece. The airfoils may extend radially outward from the rotor disk with respect to an engine axis. The rotor disk may be made of metal and the airfoils may each be made at least partially of an organic matrix composite.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 8, 2021
    Inventor: Gary D. Roberge
  • Patent number: 11028701
    Abstract: A structure for cooling a turbine airfoil includes: a cooling passage formed between first and second airfoil walls; a lattice structure body formed by stacking a plurality of ribs so as to form a lattice pattern; a cooling medium discharge port provided at a downstream end portion of the cooling passage for discharging cooling medium to the outside; an exposed wall portion formed as a portion of the second airfoil wall extending beyond the cooling medium discharge port to the outside; and a flat surface portion formed in the cooling passage from an outlet of the lattice structure body to the cooling medium discharge port and at which the wall surfaces of the first and second airfoil walls are formed as flat surfaces.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: June 8, 2021
    Inventors: Tomoko Tsuru, Katsuhiko Ishida
  • Patent number: 11021981
    Abstract: A gas turbine engine includes a main compressor section and a turbine section. The turbine section has a first turbine blade and vane and a downstream turbine component. A tap is configured to tap air from the compressor section at a location upstream of a most downstream location. The tap is connected to a heat exchanger. The heat exchanger is connected to a cooling compressor. The cooling compressor is connected to the downstream turbine component. A second tap is configured to tap air from a location in the main compressor section. The second tap is connected through a check valve to a line leading to the downstream turbine component.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: June 1, 2021
    Assignee: Raytheon Technologies Corporation
    Inventor: Frederick M. Schwarz
  • Patent number: 11022087
    Abstract: The double-regulated turbine comprises a spherical hub, adapted to rotate around a first rotation axis, and blades, which are each able to be swivelled relative to the hub around a second rotation axis, transversal to the first rotation axis, by respective coupling flanges that are mounted fixedly on the spherical hub and that include each an attachment surface for a corresponding blade. The attachment surface of the coupling flanges includes a flat portion.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 1, 2021
    Assignee: Alstom Renewable Technologies
    Inventor: Hai Trieu Phan
  • Patent number: 11021235
    Abstract: Oil transfer tube for a system to control the regulation of a turbine engine propeller pitch, in particular of an aircraft, the tube being intended to be mounted coaxially inside a tubular shaft of the propeller, the tube having an elongated shape and including a first male longitudinal end part intended to be inserted in a female housing of a stator casing equipped with an oil supply circuit of the tube, and a second male longitudinal end part around which is intended to be mounted a hydrodynamic bearing to guide the tube in the shaft, wherein the first end part includes a free annular end with a convex rounded cross-section intended to bear axially against an annular bottom of said housing, and in that said second end part comprises an outer axial annular bearing surface of an inner ring of the bearing, the annular bearing surface presenting in cross-section a convex curved shape.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 1, 2021
    Inventors: Xavier Paul Lucien Hert, Aldric Renaud Gabriel Marie Moreau De Lizoreux, Boris Pierre Marcel Morelli
  • Patent number: 11014658
    Abstract: A rotorcraft is provided which includes a rotor hub, a rotatable universal joint which tilts said rotor hub, and a plurality of servo drives which rotate the universal joint. The plurality of servo drives preferably includes four servomotors coupled together in a velocity summing arrangement to produce a single motion output.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: May 25, 2021
    Inventor: Delbert Tesar
  • Patent number: 11014652
    Abstract: A lift control device actively controls the lift force on a lifting surface. The device has a protuberance near a trailing edge of its lifting surface, which causes flow to separate from the lifting surface, generating regions of low pressure and high pressure which combine to increase the lift force on the lifting surface. The device further includes an arrangement to keep the flow attached around the protuberance or to modify the position of the protuberance in response to a command from a central controller, so as to provide an active control of the lift between a maximum value and a minimum value.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: May 25, 2021
    Assignee: Ardura, Inc.
    Inventors: Neal E. Fine, John A. Cooney, Jr.