Patents Assigned to United Technologies Corporation
  • Publication number: 20210180463
    Abstract: A side plate seal assembly for a gas turbine engine includes a multiple of non-metallic side plate seals that are arranged about an axis of the gas turbine engine to form a full hoop seal, each of the multiple of side plate seals comprise a retention surface and a knife edge seal surface that extends at an angle therefrom.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Applicant: United Technologies Corporation
    Inventor: Michael G. McCaffrey
  • Publication number: 20210180466
    Abstract: A foreign object debris (FOD) detection system for a gas turbine engine comprises a light detection and ranging (LiDAR) sensor assembly. The LiDAR sensor assembly is configured to scan a pre-determined volume within an inlet of the gas turbine engine. The inlet may be defined by a nacelle of the gas turbine engine. The LiDAR sensor assembly may comprise a single transceiver, a transmitter and a receiver, a plurality of transmitters and a receiver, or a plurality of receivers and a transmitter.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 17, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Alek Gavrilovski, William Donat
  • Publication number: 20210172333
    Abstract: A hybrid electric gas turbine engine includes a fan section having a fan, a turbine section having a turbine drivably connected to the fan through a main shaft that extends along a central longitudinal axis, a gas generating core extending along a first axis that is radially offset from the central longitudinal axis, and an electric motor drivably connected to the main shaft, wherein the electric motor is colinear with the main shaft.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 10, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: GABRIEL L. SUCIU, Om P. Sharma, Joseph B. Staubach, Marc J. Muldoon, Jesse M. Chandler, David Lei Ma
  • Publication number: 20210154733
    Abstract: A solution is provided comprising a strong base, a corrosion inhibitor, wherein the strong base is an alkali metal hydroxide, wherein the corrosion inhibitor is at least one of an organic acid having a-COOH functional group or an alkali metal salt one of an organic acid having a-COOH functional groups.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 27, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Lei Jin, Ryan C. Breneman, David Brayshaw
  • Publication number: 20210156825
    Abstract: An inspection feature for an adhesive bond portion between parts of a component comprising the inspection feature extending from a surface of the part of the component a predetermined bond line thickness, the inspection feature having a density configured to imitate a defect of the adhesive bond portion responsive to a non-destructive inspection scan.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 27, 2021
    Applicant: United Technologies Corporation
    Inventors: David R. Lyders, Andrew Pope, Christopher Avery, Daniel A. Rodrigues
  • Publication number: 20210158792
    Abstract: A face skin for an acoustic panel may comprise a sheet defining a first surface and a second surface. A plurality of slots may be formed through the face skin using abrasive blasting. Each slot of the plurality of slots may comprise a first semi-circular wall and a second semi-circular wall opposite the first semi-circular wall.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 27, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Brian Kenneth Holland, Bruce L. Morin, Michael Joseph Murphy, Steven H. Zysman
  • Patent number: 11014151
    Abstract: A method of making an airfoil includes making a refractory metal core that defines an interior of the airfoil by a tomo-lithographic process, making a mold that defines an exterior of the airfoil, inserting the refractory metal core into the mold, and pouring an airfoil material between the refractory metal core and the mold to cast the airfoil.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 25, 2021
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: John Joseph Marcin, Mark F. Zelesky, Joel H. Wagner, Theodore W. Hall, David A. Krause, Ben S. Reinert
  • Publication number: 20210140336
    Abstract: A remote temperature measurement system for a gas turbine engine includes an optical emitter/receiver in communication with the control system and a probe system embedded within a component of the gas turbine engine, the probe system within a line-of-sight of the optical emitter/receiver, the control system operable to determine a local temperature of the component in response to optical communication with the probe system.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 13, 2021
    Applicant: United Technologies Corporation
    Inventors: Urcan Guler, Paul Sheedy, John A. Sharon, Wayde R. Schmidt
  • Publication number: 20210140331
    Abstract: A vane arm connection system for a gas turbine engine, includes a vane stem having a flatted head; a vane arm having a claw engaging the flatted head; and a load spreader having a spreader body defining structure engaging the flatted head, and at least one extension extending laterally from the spreader body.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 13, 2021
    Applicant: United Technologies Corporation
    Inventor: Jonathan D. Little
  • Publication number: 20210131303
    Abstract: A compressor with negative coefficient of thermal expansion case material comprising a rotor having blades with tips, the case including an inner case comprising a negative coefficient of thermal expansion material, and a tip clearance located between the tips and the inner case; wherein the tip clearance is maintained responsive to a flow of air over the negative coefficient of thermal expansion material.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 6, 2021
    Applicant: United Technologies Corporation
    Inventors: Dilip Prasad, Gavin Hendricks
  • Publication number: 20210131347
    Abstract: A power extraction system for a gas turbine engine may comprise a low spool transmission and a low spool accessory gearbox. The low spool accessory gearbox may comprise a generator and a dual clutch transmission. The dual clutch transmission may be coupled between the low spool transmission and the generator.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Nicholas D. Leque, Joseph H. Polly
  • Publication number: 20210131352
    Abstract: Methods and systems for a gas turbine engine comprising a modulated bleed valve are provided. The gas turbine engine may comprise a turbine nozzle coupled to a controller, a modulated bleed valve in communication with the controller, and a tangible, non-transitory memory providing instructions to the controller to perform operations. The operations may include receiving parameter values from the parameter sensor at various times, determining desired bleed airflows to flow through the modulated bleed valve at various times, and/or commanding the modulated bleed valve to assume an open configuration or a closed configuration at various times. The modulated bleed valve may be configured to allow bleed airflow to bypass a nozzle choke area of the turbine nozzle and join a nozzle airflow.
    Type: Application
    Filed: December 17, 2015
    Publication date: May 6, 2021
    Applicant: United Technologies Corporation
    Inventors: Victor Pascu, Anthony C. Jones
  • Publication number: 20210131548
    Abstract: A damping apparatus includes a first sidewall defining a centerline axis, a second sidewall disposed coaxial with the first sidewall, a main cavity defined between the first sidewall and the second sidewall, and a damping material disposed in the main cavity.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 6, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Nicholas D. Leque, Joseph H. Polly
  • Publication number: 20210123357
    Abstract: A seal housing may comprise an aft flange, an outer diameter (OD) ring and a stopper. The stopper may extend radially inward from a radially inner surface of OD ring. The stopper may be configured to interface with a monobloc carbon seal. The stopper may comprise a circumferential stopping portion and an axial stopping portion. There may be a plurality of the stopper.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 29, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Masayoshi Sonokawa, Jonathan F. Zimmitti, Nasr A. Shuaib
  • Publication number: 20210123385
    Abstract: A scupper suitable for a bearing compartment of a gas turbine engine includes a windage blocker in a gutter section upstream of a drain hole, the windage blocker extends from a wall of the gutter section. A method for capturing wept oil in a bearing compartment of a gas turbine engine includes positioning a windage blocker adjacent to a drain hole forming a passage space and increasing a pressure upstream of the windage blocker to generate a vortex downstream of the windage blocker creating an oil re-circulation zone promoting oil drainage into the drain hole.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 29, 2021
    Applicant: United Technologies Corporation
    Inventors: Andrew V. Schwendenmann, Todd A. Davis, Ryan Lureau, Reade W. James
  • Publication number: 20210123355
    Abstract: A stator assembly, in accordance with various embodiments, is disclosed herein. The stator assembly comprises either a first bumper or a first tab. The first bumper or the first tab extends circumferentially outward from a mating portion of the vane towards a slot in a ring. The ring may be an outer diameter (OD) ring or an inner diameter (ID) ring. The mating portion of the vane may be coupled to the ring by a potting component. The potting component may prevent direct contact between the vane and the ring.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 29, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Sarah J. Zecha, Brian Duguay, Nicholas Hunnewell
  • Publication number: 20210123361
    Abstract: A bearing compartment of a gas turbine engine includes a rotationally fixed structure defined about an engine longitudinal axis; a gutter section formed in the front support; an oil drainback assembly mountable to the gutter section to direct oil into a drain passage to communicate oil from the gutter.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 29, 2021
    Applicant: United Technologies Corporation
    Inventors: Todd A. Davis, Joseph D. Walker
  • Publication number: 20210115805
    Abstract: A machine has: an outer member; an inner member mounted for rotation about an axis relative to the outer member; and a seal system. The seal system has: a seal housing mounted to the outer member; one or more seal rings held by the seal housing and having an inner diameter surface; and a seal runner mounted to the inner member and having a first outer diameter surface portion contacting or facing the inner diameter surface of the one or more seal rings. The seal runner has a circumferential array of mounting features. One or more weights are mounted to one or more of the mounting features.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 22, 2021
    Applicant: United Technologies Corporation
    Inventors: Timothy R. Dyer, Abhijeet Shrestha
  • Publication number: 20210114085
    Abstract: A casting core assembly is disclosed herein. The casting core assembly comprises a casting core and a bumper assembly. The bumper assembly is disposed on an outer surface of the casting core. The bumper assembly comprises a receptacle and a metal apparatus. The metal apparatus may be a pin, a sphere, or the like.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 22, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Carl R. Verner, David A. Krause
  • Patent number: 10975912
    Abstract: A bearing assembly includes a bearing cage and a supplementary ring. The bearing cage includes an annular body and a plurality of bearing elements disposed about the annular body. The supplementary ring includes an annular collar and a plurality of retention elements. The annular collar is disposed concentrically about the bearing cage. The plurality of retention elements is connected to and extends axially from the first annular collar. Each retention element is aligned between adjacent bearing elements. The plurality of retention elements is disposed to retain the plurality of bearing elements in the annular body of the bearing cage.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: April 13, 2021
    Assignee: United Technologies Corporation
    Inventors: Alexander Nelson, Kevin Duffy