Patents Assigned to United Technologies Corporation
  • Carbon face seal seat thin wall design
    Patent number: 10767510
    Abstract: A seal seat includes an annular body and an extension. The annular body is disposed about a centerline axis. The extension is connected to and extends radially outward from the annular body. The extension includes first, second, and third portions. The first portion is connected to the annular body and is defined by axially opposed upstream and downstream wall faces. The first portion includes a fin connected to the upstream wall face. The second portion is connected to the first portion and extends substantially parallel to the annular body. The third portion is connected to the second portion and extends substantially parallel to the second portion.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: September 8, 2020
    Assignee: United Technologies Corporation
    Inventors: Armando Amador, Todd A. Davis, Jorn Axel Glahn
  • BLADE/VANE COOLING PASSAGES
    Publication number: 20200277858
    Abstract: An airfoil for use with a gas turbine engine includes a pressure side wall and a suction side wall. The suction side wall is configured to be exposed to less pressure than the pressure side wall during operation of the gas turbine engine. The blade also includes a plurality of ribs forming a plurality of trapezoidal shaped cavities to receive a cooling airflow. The plurality of ribs being shaped in a way to allow for thermal growth of the airfoil, while minimizing stress in the airfoil.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 3, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Brandon W. Spangler, David R. Pack
  • FAN BLADE WITH COMPOSITE COVER
    Publication number: 20200277964
    Abstract: A fan blade includes a metallic body, a first composite cover, and a second composite cover. The metallic body may have a first side, a second side, a plurality of first retention slots, and a plurality of second retention slots, in accordance with various embodiments. The first and second retention slots may extend from the first side to the second side of the metallic body. The first composite cover may be coupled to the first side of the metallic body and may include a plurality of first fingers that extend through the first retention slots and are coupled to the second side of the metallic body. The second composite cover may be coupled to the second side of the metallic body and may include a plurality of second fingers that extend through the second retention slots and are coupled to the first side of the metallic body.
    Type: Application
    Filed: January 9, 2020
    Publication date: September 3, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Michael A. Weisse
  • Fan blade masking/coating check inspection tool
    Patent number: 10760889
    Abstract: A masking and coating check inspection tool for inspecting a masking and/or coating edge on a fan blade includes an elongate planar base having distal first and second ends, bottom surface, top face, length, width, and thickness. The length is greater than the width. A pillar perpendicular to the elongate planar base and projecting upward from the top face between the first and second ends has a first end datum, and a first masking check tolerance band disposed on the first end, configured to provide a pass/fail indication of the first masking edge with respect to the first end datum. The pillar can have second end datum and second masking check tolerance band on the second end configured to provide a pass/fail indication of a second masking edge with respect to the second end datum. The inspection tool can be used on root and platform masking/coating edges.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: September 1, 2020
    Assignee: United Technologies Corporation
    Inventor: James R. Sweeney
  • ACTIVE OIL DEBRIS MONITOR PARTICLE DETECTION AND MONITORING SYSTEM
    Publication number: 20200264157
    Abstract: A method for determining the presence of a particle while actively calculating and monitoring oil debris monitor phase angle in an oil system including collecting I and Q channel data from an oil debris monitor sensor, performing a fast Fourier transform on the I and Q channel data, extracting a shape from the fast Fourier transform, and determining whether a particle is present from the shape.
    Type: Application
    Filed: February 18, 2019
    Publication date: August 20, 2020
    Applicant: United Technologies Corporation
    Inventors: Edward Thomas Rocco, Sheridon Everette Haye
  • ACTIVE OIL DEBRIS MONITOR PHASE ANGLE CALCULATION AND MONITORING SYSTEM
    Publication number: 20200264158
    Abstract: A method for actively calculating and monitoring the oil debris monitor phase angle includes sensing a noise from an in-line oil debris monitor sensor in an oil flow path, generating a polar plot of an I and Q channel data from only the noise. Linear regression of noise is then utilized from the I and Q channel data for calculating a slope of regression form the linear regression and converting the slope to a phase angle.
    Type: Application
    Filed: February 18, 2019
    Publication date: August 20, 2020
    Applicant: United Technologies Corporation
    Inventors: Sheridon Everette Haye, Edward Thomas Rocco
  • ACTIVE OIL DEBRIS MONITOR PARTICLE DETECTION AND MONITORING SYSTEM
    Publication number: 20200264135
    Abstract: A method for determining the presence of a particle while actively calculating and monitoring oil debris monitor phase angle in an oil system including collecting I and Q channel data from an oil debris monitor sensor; determining whether the I and Q data is symmetric; processing the I and Q channel data to identify a ferrous and nonferrous signal in response to the I and Q data being symmetric; processing the ferrous and nonferrous signals to determine if a particle is present; determining a symmetry factor from the I and Q channel data in response to the particle being present and confirming that the particle is present from the symmetry factor.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 20, 2020
    Applicant: United Technologies Corporation
    Inventors: Edward Thomas Rocco, Sheridon Everette Haye
  • Hybrid wet-dry face seal seat
    Patent number: 10746051
    Abstract: A wet-dry face seal seat includes a main body having a mating face configured to mate with a sealing member and an outer diameter surface, and defining a pool feed passage that extends to the mating face and a cooling hole that extends to the outer diameter surface. The wet-dry face seal seat further includes an oil capture scoop extending from the main body and defining an oil volume radially inward from the oil capture scoop and in fluid communication with the pool feed passage and the cooling hole, the oil capture scoop having a radial distance that allows oil to flow through the cooling hole in response to oil flow from an oil jet being below a threshold value and through the pool feed passage in response to the oil flow from the oil jet reaching or exceeding the threshold value.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 18, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Martin J. Walsh
  • Conduit boot with bushing
    Patent number: 10746338
    Abstract: An assembly for sealing an interface between a conduit and a case includes a boot and a bushing. The boot includes a tube and rubber flange. The rubber flange extends generally radially outward from the tube. The rubber flange includes an opening passing through a portion of the rubber flange. The bushing is disposed in the rubber flange and includes a tubular body, a channel, and a lip. The tubular body is disposed in the opening of the rubber flange. The channel extends through a center of the body. The lip is generally flat and extends radially outward from the tubular body. The lip is in contact and engages with the rubber flange so as to compress the rubber flange against the case.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 18, 2020
    Assignee: United Technologies Corporation
    Inventors: Christopher Waitkus, Curtis J. Ruckey
  • Hydrostatic seal pinned cartridge
    Patent number: 10746039
    Abstract: A seal assembly includes a side ring and a cartridge. The side ring comprises an annular piece of solid material. The cartridge is affixed to the side ring and comprises a shoulder, a beam connected to and extending from the shoulder, a shoe attached to an end of the beam, and a rotary seal disposed on a bottom portion of the shoe.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 18, 2020
    Assignee: United Technologies Corporation
    Inventors: Conway Chuong, Tara L. D'Ambruoso, Joey Wong
  • Gas turbine engine case including bearing compartment
    Patent number: 10746049
    Abstract: An example case for a gas turbine engine includes a bearing compartment, a radially outer ring, and a radially inner ring. The radially outer ring and radially inner ring are connected by a plurality of circumferentially spaced apart struts and define an annular flow path therebetween. The radially inner ring includes a first flange that extends radially outward from the bearing compartment. The first flange includes an undulation that extends axially away from the plurality of struts, and defines a load path between the bearing compartment and the radially outer ring.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: August 18, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Jonathan Jeffery Eastwood, Adam Lee Hart, Brian Levy, Luis Miguel Ayalde, Brian Craig, Jose R. Paulino, Esref Yaylagan
  • HIGH PRESSURE COMPRESSOR SEAL-RING WITH IMPROVED WEAR RESISTANCE
    Publication number: 20200256467
    Abstract: A compressor seal-ring assembly includes a seal formed of a nickel, cobalt or iron-based superalloy; a counterface positioned for sealing interaction with the seal; and a lubricant coating on the seal, the lubricant coating being formed of a CoCrAlY-containing material.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Applicant: United Technologies Corporation
    Inventors: Pantcho P. Stoyanov, Kelly M. Harrington
  • BLADE NECK TRANSITION
    Publication number: 20200256194
    Abstract: A blade for use with a gas turbine engine includes an attachment and an airfoil. The airfoil further includes a suction side wall configured to be exposed to less pressure than the pressure side wall during operation of the gas turbine engine. The blade also includes a plurality of intersecting ribs transitioning from an airfoil cross sectional geometry to an attachment cross section geometry.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: BRANDON W. SPANGLER, DAVID R. PACK
  • High Temperature Combustor and Vane Alloy
    Publication number: 20200255924
    Abstract: An alloy comprises, by weight: nickel (Ni) as a largest constituent; 6.0% to 7.5% chromium; up to 5.0% cobalt; 5.3% to 6.5% aluminum; up to 5.0% rhenium; 3.7% to 7.0% tungsten; and 3.7% to 7.0% tantalum.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 13, 2020
    Applicant: United Technologies Corporation
    Inventors: Luke H. Rettberg, Alan D. Cetel
  • LOW LEAKAGE SEAL FOR TOWER SHAFT
    Publication number: 20200256257
    Abstract: A gas turbine engine includes a shaft compartment containing at least one main shaft which rotates about a main axis of rotation; and a tower shaft engaged with the at least one main shaft for rotation about a tower shaft axis of rotation, the tower shaft being mounted in a bearing compartment extending away from the shaft compartment, wherein the bearing compartment is sealed against leakage from inside the bearing compartment to ambient. The seal can be produced using a tower shaft seal held in a seal housing and sealing against one or more faces of the tower shaft assembly or components.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Applicant: United Technologies Corporation
    Inventors: Rachel A. McGrath, William N. Green
  • Turbine Engine Tie Rod Systems
    Publication number: 20200256216
    Abstract: A gas turbine engine turbine section has tie rod assemblies interconnecting an inner diameter structure and an outer casing. Each tie rod has: an inner diameter end; an outer diameter end; and an eyelet of an outer diameter spherical bearing formed at the outer diameter end. A first clevis carries a spherical ball of the bearing, a shank of said clevis extending to an outer diameter (OD) end. A tensioning bolt is mated to a threaded opening in said clevis OD end whereby tightening said bolt applies a tension to said rod. A radial span between a center of the outer diameter spherical bearing and an inner diameter surface of the outer casing is at least 50% greater than that between an outer diameter (OD) surface of the outer ring and the center.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Applicant: United Technologies Corporation
    Inventors: Nicholas W. Kantany, David T. Feindel, Nico M. Rappoli
  • Turbofan with motorized rotating inlet guide vane
    Patent number: 10738694
    Abstract: A gas turbine engine according to an exemplary embodiment of this disclosure includes, among other possible things, a fan including a plurality of fan blades rotatable about an axis, a plurality of inlet guide vanes mounted forward of the plurality of fan blades, the plurality of inlet guide vanes selectively rotatable about the axis independent of the plurality of fan blades; and a motor for controlling rotation of the plurality of inlet guide vanes about the axis.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: August 11, 2020
    Assignee: United Technologies Corporation
    Inventors: Daniel Bernard Kupratis, Dmitriy B. Sidelkovskiy, Neil Terwilliger, William G. Sheridan
  • Radial fuel shifting and biasing in an axial staged combustor for a gas turbine engine
    Patent number: 10739003
    Abstract: An injector of a radial fuel injection system for a combustor of a gas turbine engine includes a swirler; and a fuel nozzle located within the swirler, the fuel nozzle located within the swirler, the fuel nozzle operable to provide a biased radial fuel distribution within the swirler. A method of controlling a fuel flow to a combustor of a gas turbine engine includes selectively controlling a biased radial fuel distribution within a swirler of a radial fuel injection system.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: August 11, 2020
    Assignee: United Technologies Corporation
    Inventor: William Proscia
  • GAS TURBINE ROTOR DISK HAVING SCALLOP SHIELD FEATURE
    Publication number: 20200248711
    Abstract: A rotor disk for a gas turbine engine is disclosed. In various embodiments, the rotor disk includes a rim portion disposed about a central axis; a blade post disposed proximate the rim portion, the blade post having a first branch and a second branch; and a first scallop disposed within the rim portion, between and radially inward of the first branch and the second branch.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 6, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Kyle F. Shaughnessy
  • HALO SEAL BUILD CLEARANCE METHODS
    Publication number: 20200248810
    Abstract: A method for assembling a seal arrangement may comprise applying an adhesive to a seal, applying a force to a shoe of the seal, and removing the force from the shoe, wherein the adhesive secures the shoe with respect to a static structure in response to the force being removed.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 6, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Scott D. Virkler