Patents Assigned to United Technologies Corporation
  • Publication number: 20180044771
    Abstract: A process of preparing a blade tip for abrasive coating comprising: forming a hydroxide layer on a surface of the blade tip; ablating the hydroxide layer from the surface with a laser; and roughening the surface with the laser after the hydroxide layer ablation.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Publication number: 20180043433
    Abstract: A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires in the presence of carbon together into a unitary cellular structure.
    Type: Application
    Filed: August 9, 2016
    Publication date: February 15, 2018
    Applicant: United Technologies Corporation
    Inventors: Jose L. Santana, Weina Li, Michael J. Birnkrant
  • Patent number: 9890460
    Abstract: The invention provides a self-peening feedstock material for cold spray deposition comprising a higher ductility matrix material and a hardened particle.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: February 13, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Michael A. Klecka, Aaron T. Nardi
  • Patent number: 9890659
    Abstract: A mid-turbine frame for a gas turbine engine includes a vane assembly supported within a case. The vane assembly directs airflow between a first turbine and a second turbine. A support rod extends through the vane assembly and is secured to the case by a retaining nut. The retaining nut extends through a guide attached to the vane assembly for aligning the vane assembly relative to the case portion.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventor: Jaisukhlal V. Chokshi
  • Patent number: 9890088
    Abstract: Disclosed is a method of fabricating a preceramic polymer for making a ceramic material including a metal boride. The method includes providing a starting preceramic polymer that includes a silicon-containing backbone chain and first and second reactive side groups extending off of the silicon-containing backbone chain, reacting a boron-containing material with the first reactive side group to bond a boron moiety to the silicon-containing backbone chain, and reacting a metal-containing material with the second reactive side group to bond a metal moiety to the silicon-containing backbone chain such that the preceramic polymer includes the boron moiety and the metal moiety extending as side groups off of the silicon-containing backbone chain. Also disclosed is a preceramic polymer composition and a metal-boride-containing ceramic article fabricated from the preceramic polymer.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 13, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Douglas M. Berczik, Michael A. Kmetz, Steve Lawrence Suib, Justin Reutenauer, Timothy Coons
  • Patent number: 9890953
    Abstract: A combined liner and panel for use in a gas turbine engine comprise a ceramic matrix composite panel having a plurality of extending members extending away from a face of ceramic matrix composite panel which will face hot products of combustion. A liner includes a plurality of spring members that apply a bias force biasing the extending members. The spring members bias the extending members on the panel in a direction away from the face of the panel which will face the hot products of combustion. A gas turbine engine, and a method of attaching a ceramic matrix composite panel to a liner are also disclosed.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventors: Jose E. Ruberte Sanchez, Timothy J. McAlice, Kevin L. Rugg
  • Patent number: 9889944
    Abstract: An aircraft controller includes a memory for storing instructions. The instructions are operable to cause the controller to perform a thrust balancing method and ensure a balanced thrust output from the aircraft. The thrust balancing method includes comparing an aircraft control surface setting in a cruise flight mode with the aircraft control surface setting in a flight idle mode of operations, thereby isolating an asymmetric thrust component of the aircraft control surface settings and determining an asymmetric thrust bias based on the isolated asymmetric thrust component of the aircraft control surface settings.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventor: Philip A. Schmidt
  • Patent number: 9889631
    Abstract: The present disclosure relates generally to strip process for removing a coating from a substrate comprising the steps of: providing a base alloy and a MCrAlY coating deposited over the base alloy substrate; and removing the MCrAlY coating by bringing the MCrAlY coating in contact with an acid solution comprising nitric acid, phosphoric acid and ammonium bifluoride in an aqueous solution, and maintaining the acid solution contact for sufficient time and at sufficient temperature to permit the coating to be stripped from the base alloy substrate.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: February 13, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Eric W. Stratton, Michael J. Minor
  • Patent number: 9890711
    Abstract: A gas turbine engine includes a bleed structure which includes a forward wall and a rear structural wall to define a deposit space downstream of the bleed structure for a hail event of a predetermined duration.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventors: Justin R. Urban, Anthony R. Bifulco
  • Patent number: 9889450
    Abstract: A powder classification apparatus (10; 110; 210) includes a first chamber (12; 112; 212) that includes a fluidized bed and has an inlet (16; 116; 216A) and an outlet (18; 118; 218), the inlet (16; 116; 216A) configured to receive a gas (G) and distribute the gas (G) in a uniform flow through the first chamber (12; 112; 212), the first chamber (12; 112; 212) configured to receive a powder (P) and the gas (G) and create a fluidization zone, the outlet (18; 118; 218) configured to allow at least a portion of the powder (P) to exit the first chamber (12; 112; 212); and a second chamber (14; 114; 214) having a powder inlet (24; 124; 224) configured to accept at least a portion of the powder (P) from the outlet (18; 118; 218) in the first chamber (12; 112; 212) caused by at least a portion of the powder (P) being ejected from the first chamber (12; 112; 212) by the gas (G).
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventors: Ying She, Aaron T. Nardi, Michael A. Klecka
  • Patent number: 9890641
    Abstract: An integrally bladed rotor includes a rim integral with a web that extends radially inward to a bore. The rim provides an end wall from which integral blades extend radially outward to a tip. The blades have an airfoil that extends in a chord-wise direction from a leading edge to a trailing edge. A fillet circumscribes the airfoil and joins the airfoil to the end wall. The fillet is at one of the leading edge and the trailing edge is truncated at least 50% in an axial direction to provide a face of the rim.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: February 13, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Christopher L. Potter, Michael Espinoza
  • Patent number: 9890645
    Abstract: A gas turbine engine includes a compressor section, a combustor fluidly connected to the compressor section, and a turbine section fluidly connected to the combustor and mechanically connected to the compressor section via a shaft. Multiple rotors are disposed in one of the compressor section and the turbine section. Each of the rotors includes a rotor disk portion having a radially inward bore, and is static relative to the shaft. Each rotor is axially adjacent at least one other rotor and a gap is defined between each rotor and an adjacent rotor. A cooling passage for a cooling flow is defined between the shaft and the rotors, and a cooling flow redirection component is disposed at the gap and is operable to redirect the cooling flow in the cooling passage into the gap.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventors: Michael G. McCaffrey, Elizabeth F. Vinson
  • Patent number: 9890657
    Abstract: An example acoustic treatment for a geared turbomachine establishes a portion of the core cowl aft the fan cowl.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventor: Amr Ali
  • Patent number: 9890650
    Abstract: A carbon seal assembly for a gas turbine engine is disclosed. The carbon seal assembly includes a first carbon seal. The carbon seal assembly also includes a first carbon seal spring configured to provide force against the first carbon seal in a first axial direction, the first carbon seal spring having an annular shape and circumferentially disposed around a first shaft of the gas turbine engine.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: February 13, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Kaleb Von Berg, Adam G. Smedresman
  • Patent number: 9890663
    Abstract: A turbine exhaust case (28) comprises a fairing (120) defining an airflow path through the turbine exhaust case, and a multi-piece frame (100) disposed through and around the fairing to support a bearing load. The multi-piece frame comprises an inner ring (104), an outer ring (102), and a plurality of strut bosses (106). The outer ring is disposed concentrically outward of the inner ring, and has open bosses (126) at strut locations. The plurality of radial struts pass through the vane fairing, are secured to the inner ring via radial fasteners (108), and are secured via non-radial fasteners (114) to the open boss.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 13, 2018
    Assignee: United Technologies Corporation
    Inventor: Jonathan Ariel Scott
  • Publication number: 20180036793
    Abstract: A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investment of a precursor with a diluted pre-investment ceramic plaster then investing the encapsulated precursor with a ceramic plaster.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 8, 2018
    Applicant: United Technologies Corporation
    Inventors: Ryan B. Noraas, Steven J. Bullied, Mark F. Bartholomew
  • Publication number: 20180036918
    Abstract: A method of forming an iso-grid structure may include filling multiple pockets of the iso-grid structure with a filler material, attaching a support structure to the perimeter of the iso-grid structure, shaping the iso-grid and support structures, and removing the support structure from the iso-grid structure. The support structure may be thinned and stretched during the shaping process.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: THOMAS M. BARRY
  • Patent number: 9884365
    Abstract: A shot tube includes an inner bore for delivering molten material into a die-cast mold. The shot tube has an outer peripheral surface with at least one surface for receiving a locking member to lock the shot tube into an aperture in a fixed mold portion and an alignment structure for properly aligning the shot tube in the fixed mold portion. An opening receives molten material into the inner bore. A die-cast machine is also disclosed.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: February 6, 2018
    Assignee: United Technologies Corporation
    Inventors: Mario P. Bochiechio, Yee Ling Kwan, Carl R. Verner
  • Patent number: 9885110
    Abstract: A method or control strategy in a coating apparatus for use in a coating process can include controlling differential gas pressures among multiple selected localized zones in a coating chamber with respect to each other. The controlled differential gas pressure of the multiple selected localized zones is used to influence how a coating deposits on at least one component. The localized zones can be selected from a first localized zone around the component, a second localized zone adjacent the source of coating material, a third localized zone that diverges from the second localized zone toward the first localized zone, and a fourth localized zone that circumscribes at least the third localized zone.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: February 6, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Dmitri Novikov, Sergei F. Burlatsky, David Ulrich Furrer, David A. Litton
  • Patent number: 9885247
    Abstract: A support assembly for a gas turbine engine includes an outer support that extends about a circumferential axis and includes at least one engagement member. An inner support forms a cavity. A control ring is located within the cavity and includes at least one tab for engaging at least one engagement member on the outer support.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: February 6, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Andrew S. Miller, Peter Balawajder