Patents Assigned to United Technologies Corporation
  • SYSTEMS AND METHODS FOR SUPPORT MATERIAL REMOVAL
    Publication number: 20200346413
    Abstract: A method of manufacturing an additively manufactured component may comprise operating an additive manufacturing machine to form a first structure including an elongate portion having a blind design surface, operating the additive manufacturing machine to form a removal tool proximate the blind design surface, wherein the blind design surface and the removal tool are at least partially enclosed by and in contact with a support material, and translating the removal tool along the blind design surface to separate a portion of the support material from the blind design surface.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 5, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Lawrence A Binek, David W Morganson
  • Method of fabricating a ceramic composite
    Patent number: 10822282
    Abstract: A method of making a ceramic composite component includes providing a fibrous preform or a plurality of fibers, providing a first plurality of particles, coating the first plurality of particles with a coating to produce a first plurality of coated particles, delivering the first plurality of coated particles to the fibrous preform or to an outer surface of the plurality of fibers, and converting the first plurality of coated particles into refractory compounds. The first plurality of particles or the coating comprises a refractory metal.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 3, 2020
    Assignee: United Technologies Corporation
    Inventors: Wayde R. Schmidt, Paul Sheedy
  • DESIGN FOR INTERNAL COOLING PASSAGES FOR ROTATING CUTTING TOOLS
    Publication number: 20200338649
    Abstract: A cutting tool comprising a tool body comprising a shank and a cutter opposite the shank, the body defining a length from a shank end to an end face opposite the shank end, a central axis extends along the length of the body; at least one tooth having a cutting edge, the cutting edge extending along the tooth from the shank to the end face; a flute formed adjacent the at least one tooth; at least one cooling channel formed in the tooth proximate the at least one cutting edge, the at least one cooling channel having an elongated cross sectional shape with an elliptical portion and a circular portion opposite the elliptical portion, wherein the elliptical portion is located proximate the cutting edge.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 29, 2020
    Applicant: United Technologies Corporation
    Inventors: Zhigang Wang, Changsheng Guo, Robert W. Day, Gordon Miller Reed
  • DYNAMIC SLEEVE SEAL FITTINGS
    Publication number: 20200340368
    Abstract: A dynamic sleeve seal fitting may comprise a first sleeve having a tongue portion, a second sleeve having a groove configured to receive the tongue portion, and a first seal member coupled to at least one of the tongue portion or the groove and configured to generate a seal between the first sleeve and the second sleeve in response to inserting the tongue portion into the groove.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 29, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Edward Guevel
  • THERMAL BARRIER COATING WITH REDUCED STABILIZER CONTENT
    Publication number: 20200340100
    Abstract: In accordance with the present disclosure, there is provided a process for limiting a critical stabilizer content in coatings comprising placing a source coating material in a crucible of a vapor deposition apparatus having a coating chamber, the source coating material having compositional range of LnO1.5 comprising a single cation mol % of 30-50% relative to zirconia (ZrO2), where Ln=La, Pr, Nd, Sm, Eu, Gd, and Tb and combinations thereof; energizing the source coating material with an electron beam that delivers a power density to the material in the crucible forming a vapor cloud from the source coating material; and depositing the source coating material as a coating system onto a surface of a work piece.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 29, 2020
    Applicant: United Technologies Corporation
    Inventors: Kaylan M. Wessels, Brian T. Hazel, Michael J. Maloney, David A. Litton, Elisa M. Zaleski
  • COLOR CHANGING ADHESIVE BOND PRIMER
    Publication number: 20200339822
    Abstract: A thickness-detecting bond primer is disclosed. In various embodiments, the thickness-detecting bond primer includes a solvent configured for application to a metallic surface; and a dye dispersed within the solvent, the dye having a concentration within a range of about 0.001 weight percent to about 5.0 weight percent of the thickness-detecting bond primer.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 29, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Katharine Oleske
  • ROTATING LEAF SPRING SEAL
    Publication number: 20200340369
    Abstract: A rotating leaf spring seal is disclosed. In various embodiments, the rotating leaf spring seal includes a first annular ring configured for positioning against a support structure; a hook section having an outer surface configured for sealing engagement with a tie shaft and an inner surface configured for receiving a hold down ring; and a spring section disposed between the first annular ring and the hook section.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 29, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Daniel Benjamin
  • ROTOR COUPLING RING
    Publication number: 20200340361
    Abstract: A rotor assembly is disclosed. In various embodiments, the rotor assembly includes a first rotor having a first plurality of tabs; a second rotor having a second plurality of tabs; and a rotor coupling ring having an anti-rotation tab configured for disposition between an adjacent pair of tabs from one of the first plurality of tabs or the second plurality of tabs.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 29, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: NICHOLAS WATERS OREN, Conway Chuong
  • Failure mitigation and failure detection of intercooled cooling air systems
    Patent number: 10815889
    Abstract: A gas turbine engine includes a first tap connected to a compressor section to deliver air at a first pressure. A heat exchanger is downstream of the first tap. A cooling air valve selectively blocks flow of cooling air across the heat exchanger. A cooling compressor is downstream of the heat exchanger and pressurizes the air from the first tap to a greater second pressure. A shut off valve selectively stops flow of the air between the heat exchanger and the cooling compressor. A controller controls the cooling air valve, the shut off valve, and the cooling compressor such that the flow of the air is stopped between the heat exchanger and the cooling compressor only after the controller has stopped the cooling compressor. A monitoring system communicates with the controller and includes a pressure sensor and a temperature sensor downstream of the cooling compressor.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: October 27, 2020
    Assignee: United Technologies Corporation
    Inventors: Frederick M. Schwarz, Jorn Axel Glahn
  • LOCKOUT FOR DEEP REACH MACHINING TOOL
    Publication number: 20200331080
    Abstract: A deep reach machining tool provides a swing arm cartridge that pivots relative to the tool body about an axis, an open sensor that indicates that the swing arm cartridge is in an open position with respect to the tool body, and a close sensor that indicates that the swing arm cartridge is in a closed position with respect to the tool body.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 22, 2020
    Applicant: United Technologies Corporation
    Inventors: Sandra Adebowale, Michael A. Czywczynski, Grant Clemo
  • OIL DEBRIS MONITOR TO DETECT MECHANICAL FAILURES IN HIGH NOISE ENVIRONMENTS
    Publication number: 20200333293
    Abstract: A method to effectively utilize an oil debris monitor to provide advanced warning to mechanical system failures in a high noise system by adapting detection and annunciation algorithms to the background noise in a system that includes collecting I and Q channel data from a sensor; processing the I and Q channel data to both calculate a noise based (RMS adjusted) detection threshold and to identify a ferrous and nonferrous signal; processing the ferrous and nonferrous signals to determine signal peaks above the RMS adjusted detection threshold; adjusting a detection threshold if more signal peaks observed than allowable particles in a given time window; transmitting the detection threshold previously determined to particle detection, rate limit adjustment, detectability algorithms, and estimated mass loss accumulation.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 22, 2020
    Applicant: United Technologies Corporation
    Inventors: Edward Thomas Rocco, Danbing Seto
  • FLOATING BRUSH SEAL ASSEMBLY
    Publication number: 20200332899
    Abstract: A floating brush seal assembly includes a ring-shaped housing defining a radially inwardly open internal cavity; a brush seal in the cavity and having bristles extending radially inwardly and offset to seal against a rotating body; a radial spring positioned to exert a radial inwardly directed force against the brush seal relative to the housing; and an axial spring positioned to exert an axially directed force against the brush seal relative to the housing.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 22, 2020
    Applicant: United Technologies Corporation
    Inventor: Armando Amador
  • ADDITIVE MANUFACTURING BASED MULTI-LAYER FABRICATION/REPAIR
    Publication number: 20200331059
    Abstract: A method of additively manufacturing includes generating a thermal model driven scan map that identifies an equiaxed cap region, a single crystal (SX) region, and a columnar to equiaxed transition (CET) region; and forming an active melt pool with respect to the thermal model driven scan map such that a depth of the active melt pool is greater than a thickness of the equiaxed transition (CET) region.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 22, 2020
    Applicant: United Technologies Corporation
    Inventors: Ranadip Acharya, Vijay Narayan Jagdale
  • Turbine engine case mount and dismount
    Patent number: 10808622
    Abstract: A method for mounting a gas turbine engine having a compressor section, a combustor section, a turbine section, a pylon and a rear mount bracket, includes positioning the mounting bracket between the gas turbine engine and the pylon. The mounting bracket is connected to the turbine case reacting a least a vertical load, a side load, a thrust load, and a torque load from the gas turbine engine through the mounting bracket. The mounting bracket is attached to the pylon reacting the same loads from the gas turbine engine.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 20, 2020
    Assignee: United Technologies Corporation
    Inventors: Gabriel L. Suciu, Ioannis Alvanos, Brian Merry
  • Gas turbine engine fan blade, design, and fabrication
    Patent number: 10808545
    Abstract: An embodiment of a fan blade includes an interior region between a metallic pressure sidewall and a metallic suction sidewall. Each sidewall extends in span from a base to a tip, and extends in chord from a leading edge to a trailing edge. The interior region of the fan blade includes a first fully dense metallic portion and a first porous metallic portion. The first fully dense metallic portion has a volume occupying at least 10% of a total volume of the interior region, and substantially no porosity. The first porous metallic portion is integrally joined to the fully dense metallic portion, and is selected from a structured lattice, an unstructured foam, and combinations thereof.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: October 20, 2020
    Assignee: United Technologies Corporation
    Inventors: Tahany Ibrahim El-Wardany, Matthew E. Lynch, Om P. Sharma, Catalin G. Fotache
  • Airfoil cooling circuits
    Patent number: 10808551
    Abstract: An airfoil includes leading and trailing edges; first and second sides extending from the leading edge to the trailing edge, each side having an exterior surface; a core passage located between the first and second sides and the leading and trailing edges; and a wall structure located between the core passage and the exterior surface of the first side. The wall structure includes a plurality of cooling fluid inlets communicating with the core passage for receiving cooling fluid from the core passage, a plurality of cooling fluid outlets on the exterior surface of the first side for expelling cooling fluid and forming a cooling film along the exterior surface of the first side, and a plurality of cooling passages communicating with the plurality of cooling fluid inlets and the plurality of cooling fluid outlets. At least a portion of one cooling passage extends between adjacent cooling fluid outlets.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 20, 2020
    Assignee: United Technologies Corporation
    Inventors: Eric A. Hudson, Tracy A. Propheter-Hinckley, San Quach, Matthew A. Devore
  • AFTER-FAN SYSTEM FOR A GAS TURBINE ENGINE
    Publication number: 20200325852
    Abstract: An after-fan system for a gas turbine engine includes a variable pitch fan exit guide vane array. An after-fan turbine downstream of the variable pitch fan exit guide vane array and a control operable to vary a pitch of the variable fan exit guide vane array. A method of generating thrust for a gas turbine engine includes rotating a fan section with an array of fan blades; rotating an after-fan turbine downstream of the fan section; and varying a pitch of a variable fan exit guide vane array downstream of the fan section and upstream of the after-fan turbine.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 15, 2020
    Applicant: United Technologies Corporation
    Inventors: Dmitriy B. Sidelkovskiy, Pitchaiah Vijay Chakka, Michael Winter, Daniel Bernard Kupratis
  • GEOMETRICALLY SEGMENTED THERMAL BARRIER COATING WITH SPALL INTERRUPTER FEATURES
    Publication number: 20200325783
    Abstract: A method of preventing spallation for a geometrically segmented thermally insulating top coat on an article, the method comprising forming a surface feature in a surface of the article; forming a crack deflection feature in the surface proximate the surface feature; disposing the thermally insulating topcoat over the surface feature; and forming segmented portions that are separated by faults extending through the thermally insulating topcoat from the surface feature.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 15, 2020
    Applicant: United Technologies Corporation
    Inventors: Christopher W. Strock, Paul M. Lutjen
  • VIBRATION ISOLATOR ASSEMBLY
    Publication number: 20200325795
    Abstract: A vibration isolating bushing assembly may comprise a first T-bushing configured to receive a fastener, a second T-bushing configured to couple to the first T-bushing and the fastener, a first isolating washer, and a second isolating washer, wherein the first isolating washer and the second isolating washer are configured to couple between the first T-bushing and the second T-bushing.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 15, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Norman John Dube, Michael Sapanaro, JR.
  • Attachment for high temperature CMC combustor panels
    Patent number: 10801731
    Abstract: A combustor panel for use in a gas turbine engine includes a body portion having an outwardly curved edge defining a channel between the body portion and the outwardly curved edge. The outwardly curved edge includes a plurality of slots. The panel further includes a fastening member having a base disposed within the channel and a plurality of fasteners extending from the base and disposed within the slots.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 13, 2020
    Assignee: United Technologies Corporation
    Inventor: Gary J. Dillard