Patents Assigned to United Technologies
  • Solid Rocket Motor Propellant Manufacture and Configurations
    Publication number: 20200377428
    Abstract: A method for manufacturing a solid propellant includes: forming a tool of layers of a first material wherein cuts in the layers form a first interior chamber in the tool; using the tool to mold a second material in the first interior chamber; removing the molded second material from the tool; using the molded second material to mold an interior chamber in a rocket propellant grain; and removing the molded second material from the rocket propellant grain.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Applicant: United Technologies Corporation
    Inventor: Dustin W. Davis
  • CYLINDRICAL ROLLER BEARING CONTAINING A CROWNED INNER RING SHOULDER
    Publication number: 20200370601
    Abstract: A ring for use in a roller bearing includes an outer wall. The ring further includes two side walls extending away from the outer wall, defining a cavity therebetween for receiving at least one roller, and each of the two side walls having an outer edge at a location facing the cavity and farthest from the outer wall. The ring further includes a curved crown extending inward from at least one of the two side walls and configured to contact the at least one roller to reduce wear of the outer edge.
    Type: Application
    Filed: May 21, 2019
    Publication date: November 26, 2020
    Applicant: United Technologies Corporation
    Inventor: Brady Walker
  • Centrifugal airfoil cooling modulation
    Patent number: 10844730
    Abstract: In one example embodiment, a blade includes an attachment region, an airfoil extending from the attachment region, and a blade cooling arrangement. The blade cooling arrangement includes at least a first feed passage disposed through the attachment region, which is connected to a first cooling passage disposed in the airfoil. A passively actuated first coolant valve is disposed in or proximate the first feed passage. A plurality of such blades can be disposed in a turbine section of an engine.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: November 24, 2020
    Assignee: United Technologies Corporation
    Inventors: Lane Thornton, Thomas N. Slavens
  • DIFFUSER CASE SUPPORT STRUCTURE
    Publication number: 20200362762
    Abstract: A diffuser case support structure for a gas turbine engine includes a fairing disposed circumferentially about a longitudinal axis. The fairing defines a plurality of passages circumferentially spaced apart and forming at least a portion of a fluid path between a compressor and a combustor of the gas turbine engine. A diffuser frame includes a plurality of struts. Each of the plurality of struts is disposed between a pair of adjacent passages of the plurality of passages. The diffuser frame is configured to couple an inner diffuser case to an outer diffuser case. A sliding joint is formed between the fairing and the diffuser frame, the sliding joint comprising a fastener extending generally axially through an aperture disposed in the fairing.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 19, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Matthew Andrew Hough, John S. Tu, Stephen C. Harmon, Paul F. Croteau, Russell B. Hanson, Joshua C. Rathgeb
  • MONOLITHIC COMBUSTOR FOR ATTRITIABLE ENGINE APPLICATIONS
    Publication number: 20200362724
    Abstract: A monolithic combustor apparatus comprises an outer casing comprising a forward flange, a fuel manifold disposed on the outer casing and defining an annular chamber extending perimetrically around the outer casing, a combustor liner disposed within the outer casing, the combustor liner defining an annular combustion chamber, a first annular plenum disposed between the outer casing and the combustor liner, an inner liner disposed radially from the combustor liner, a first inner flange extending forward from the combustor liner, and a second inner flange extending radially inward from the first inner flange.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 19, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Lawrence A. Binek, Jesse R. Boyer, Evan J. Butcher, Dmytro Mykolayovych Voytovych
  • CVI/CVD matrix densification process and apparatus
    Patent number: 10837109
    Abstract: A chemical vapor infiltration and deposition (CVI/CVD) reactor assembly includes a CVI/CVD reactor and a reactant gas feed source. The CVI/CVD reactor includes a first inlet at a first end of the CVI/CVD reactor, a second inlet at a second end of the CVI/CVD reactor opposite the first end, a first outlet at the second end, a second outlet at the first end, and a chamber in fluid communication with the first and second inlets and first and second outlets and configured to hold a substrate. The reactant gas feed source is interchangeably and fluidly connected to the first and second inlets by first and second valved gas lines, respectively.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 17, 2020
    Assignee: United Technologies Corporation
    Inventors: Ying She, Cristal Chan
  • Electrocaloric heat transfer system
    Patent number: 10837681
    Abstract: A cooling system includes an electrocaloric element (12) having a liquid crystal elastomer or a liquid form liquid crystal retained in an elastomeric polymer matrix. A pair of electrodes (14.16) is disposed on opposite surfaces of the electrocaloric element. A first thermal flow path (18) is disposed between the electrocaloric element and a heat sink (17). A second thermal flow path (22) is disposed between the electrocaloric element and a heat source (20). The system also includes a controller (24) configured to control electrical current to the electrodes and to selectively direct transfer of heat energy from the electrocaloric element to the heat sink along the first thermal flow path or from the heat source to the electrocaloric element along the second thermal flow path.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 17, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Joseph V. Mantese, Zhongfen Ding
  • COOLED ATTACHMENT SLEEVE FOR A CERAMIC MATRIX COMPOSITE ROTOR BLADE
    Publication number: 20200355084
    Abstract: A rotor disk assembly for a gas turbine engine includes a rotor disk with a multiple of blade slots, the rotor disk defined about an axis; a sleeve received within each of the multiple of blade slots; and a ceramic matrix composite rotor blade received within each of the multiple of sleeves.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 12, 2020
    Applicant: United Technologies Corporation
    Inventor: Michael G. McCaffrey
  • METHOD OF MANUFACTURING A COMPOSITE VESSEL ASSEMBLY
    Publication number: 20200353704
    Abstract: A method of manufacturing a composite vessel assembly (20) includes the steps of filling a first chamber defined by a first liner (28,30,32) with a first granulated material (96) through a first orifice (98) in the first liner. A vacuum is then applied to the first chamber, and the first orifice is plugged. The first liner may then be enveloped with a first layer (84) for structural rigidity followed by relief of the vacuum.
    Type: Application
    Filed: April 22, 2016
    Publication date: November 12, 2020
    Applicant: United Technologies Corporation
    Inventors: Andrzej Ernest KUCZEK, Ellen Y. SUN, Wenping ZHAO
  • Method of densifying a ceramic matrix composite using a filled tackifier
    Patent number: 10829419
    Abstract: A method of producing an enhanced ceramic matrix composite includes applying a tackifier compound to a fiber preform. The tackifier compound includes inorganic filler particles. The method further includes modifying the tackifier compound such that the inorganic filler particles remain interspersed throughout the fiber preform, and occupy pores of fiber preform.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: November 10, 2020
    Assignee: United Technologies Corporation
    Inventors: Richard Wesley Jackson, Kathryn S. Read, Jeremy R. Hart, Andrew J. Lazur
  • Removal of epoxies from metal substrates
    Patent number: 10828667
    Abstract: A method of repairing a defectively manufactured multi-layer component having a substrate material and a primer layer includes applying, to the primer layer, a solvent that causes the primer layer to swell to form a swelled primer layer. The method also includes abrading away the swelled primer layer from the multi-layer component and rebuilding the multi-layer component by forming a new primer layer on the substrate material.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 10, 2020
    Assignee: United Technologies Corporation
    Inventors: John Harner, Danielle E. Jencks
  • Method of densifying a ceramic matrix composite using a filled tackifier
    Patent number: 10829418
    Abstract: A method of producing an enhanced ceramic matrix composite includes applying a tackifier compound to a fiber preform. The tackifier compound includes inorganic filler particles. The method further includes modifying the tackifier compound such that the inorganic filler particles remain interspersed throughout the fiber preform, and occupy pores of fiber preform.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: November 10, 2020
    Assignee: United Technologies Corporation
    Inventors: R. Wesley Jackson, Kathryn S. Read, Jeremy R. Hart, Andrew J. Lazur
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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