Patents Assigned to United Technologies Corporation
  • Publication number: 20170349265
    Abstract: A spinner for a gas turbine engine may include a substantially-flat inner surface having frustoconical geometry. A flange having semi-torroidal geometry may extend from the spinner with an inner curved surface of the flange being tangential to the inner surface. A mating portion may extend substantially tangentially from the inner curved surface of the flange and configured for fastening to a fan hub.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 7, 2017
    Applicant: United Technologies Corporation
    Inventors: James J. McPhail, Colin J. Kling
  • Publication number: 20170348765
    Abstract: A method to manufacture reticulated metal foam via a dual investment, includes pre-investment of a precursor with a diluted pre-investment ceramic plaster then applying an outer mold to the encapsulated precursor as a shell-mold.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 7, 2017
    Applicant: United Technologies Corporation
    Inventors: Ryan C. Breneman, Steven J. Bullied, David R. Scott
  • Publication number: 20170350268
    Abstract: A blade outer air seal (BOAS) segment has a transversely concave inner diameter (ID) surface along a main body portion and extending from a first circumferential end to a second circumferential end. A first mounting ear extends outward from the main body portion and cooperates with a first end portion of the main body portion to define a first circumferentially outwardly open mounting recess. A second mounting ear extends outward from the main body portion and cooperates with a second end portion of the main body portion to define a second circumferentially outwardly open mounting recess.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 7, 2017
    Applicant: United Technologies Corporation
    Inventor: Michael G. McCaffrey
  • Publication number: 20170350273
    Abstract: A bearing assembly is provided. The bearing assembly includes an inner race configured to couple to a shaft, an outer race disposed around the inner race, and a housing disposed around the outer race. The housing and the outer race define an annulus and a buffer region, and the buffer region defines an axial boundary of the annulus.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 7, 2017
    Applicant: United Technologies Corporation
    Inventors: Daniel L. Gysling, Gregory M. Savela, John M. Feiereisen, Robert J. Morris
  • Patent number: 9835032
    Abstract: A rotor disk is provided. The rotor disk may comprise a disk lug and a trench. The disk lug may be fixed to a distal surface of the rotor disk. The trench may be disposed on a surface of the disk lug. The trench may extend radially inwards from a distal surface of the disk lug. The trench may be configured to at least partially define a flow path by which cooling air may reach a distal surface of the disk lug in order to provide disk lug cooling.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventors: David Richard Griffin, Zachary Mott, Christopher Corcoran, Ross Wilson, Jason D Himes
  • Patent number: 9833869
    Abstract: A blade outer air seal for a gas turbine engine having a surface that is eccentric with respect to the engine rotation centerline, and a method for creating same, are disclosed. Also, a method for grinding a work piece having nominal curvature defined by a work piece curvature centerline is disclosed, comprising the steps of: a) determining a desired surface profile for the work piece; b) providing a rotating grinding surface having a grinding rotation centerline; c) offsetting the grinding rotation centerline from the work piece curvature centerline; and d) applying the rotating grinding surface to the work piece while rotating the rotating grinding surface about the grinding rotation centerline to create the desired surface profile.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: December 5, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Paul M. Lutjen, Patrick D. Couture
  • Patent number: 9835053
    Abstract: A bushing includes a cylindrical bushing body with a lubricant aperture and a dry lubrication source. The bushing defines a main bushing bore therethrough along a longitudinal axis. The lubricant aperture is defined in the bushing body along an angle relative to the longitudinal axis. The dry lubrication source is disposed in the lubricant aperture. A variable vane system includes a cylindrical case, a plurality of vanes projecting radially inward from the case, and a plurality of bushings. Each vane includes a respective vane stem operatively connecting an end of each vane to the case. Each bushing is disposed on one of the respective vane stems between the vane stem and the case. The respective vane stem is disposed within the main bushing bore and each bushing is slidingly engaged with the case.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: December 5, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Logan H. Do
  • Patent number: 9835052
    Abstract: A gas turbine engine according to an example of the present disclosure includes, among other things, a fan, a compressor section, and a turbine section including a fan drive turbine and a second turbine. The fan drive turbine has a first exit area at a first exit point and is rotatable at a first speed. A mid-turbine frame is positioned intermediate the fan drive turbine and the second turbine, and can include a bearing support. The second turbine has a second exit area at a second exit point and is rotatable at a second speed. A first performance quantity is defined as the product of the first speed squared and the first area. A second performance quantity is defined as the product of the second speed squared and the second area.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: December 5, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Frederick M. Schwarz, Gabriel L. Suciu, William K. Ackermann, Daniel Bernard Kupratis, Michael E. McCune
  • Patent number: 9835086
    Abstract: An oil accumulator assembly may comprise a scavenge tube including an aperture defined by a break in the scavenge tube and/or an annular cylindrical structure concentrically situated about the scavenge tube. The aperture may be configured to receive oil flowing through the scavenge tube, and the annular cylindrical structure may be configured to accumulate oil flowing through the aperture. The oil accumulator assembly may further comprise a drainage outlet disposed in the annular cylindrical structure. Oil accumulated within the annular cylindrical structure may drain through the drainage outlet in response to an engine being shut down. The oil accumulated within the annular cylindrical structure may fill a portion of the scavenge tube situated within an engine fan case to prevent coking within the scavenge tube.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventor: Colin D. Craig
  • Patent number: 9835090
    Abstract: A fire seal includes a molded body having a base portion, a curved portion extending from the base portion, and a metal seal support surrounding the base portion and a radially inward surface of the curved portion. The curved portion has a partially circular cross section.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventor: Matthew Exner
  • Patent number: 9835092
    Abstract: A gas turbine engine includes an engine core and core nacelle cowling coupled to the engine core. The engine core has a core member that extends radially outward from the engine core. The core nacelle cowling has a cowling member that extends radially inward towards the engine core. The cowling member is offset axially from the core member to form a labyrinth seal that bounds a coolant inlet, thereby fluidly coupling the fan duct flow of the gas turbine engine with a core compartment defined between the engine core and core nacelle cowling.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: December 5, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Nigel D. Sawyers-Abbott, Gregory E. Reinhardt
  • Patent number: 9834835
    Abstract: A coated substrate comprises: a metallic substrate; a bondcoat atop the substrate; and a ceramic barrier coat atop the bondcoat. The bondcoat has a combined content of one or more of molybdenum, chromium, and vanadium of at least 50 percent by weight.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventors: Christopher W. Strock, Matthew E. Bintz
  • Patent number: 9835033
    Abstract: A hybrid airfoil according to an exemplary aspect of the present disclosure includes, among other things, a leading edge portion made of a first material, a trailing edge portion made of a second material, and an intermediate portion between the leading edge portion and the trailing edge portion made of a non-metallic material. A rib is disposed between the leading edge portion and the intermediate portion. A protrusion of one of the rib and the intermediate portion is received within a pocket of the other of the rib and the intermediate portion.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 5, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Sergey Mironets, Edward F. Pietraszkiewicz, Alexander Staroselsky, Mark F. Zelesky
  • Patent number: 9834326
    Abstract: A powder filling method includes introducing a tube into a can so that the lower end of the tube is near the bottom of the can. The powder in the can is introduced through the tube. The proximity of the lower end of the tube to the powder is controlled by retracting the tube as the powder fills the can.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventors: Agnieszka M. Wusatowska-Sarnek, James S. Guest, Larry G. Housefield, Enrique E. Montero, Ruston M. Moore
  • Patent number: 9835043
    Abstract: An air modulating system for a gas turbine engine includes a fixed plate with a fluid passage inlet, a floating plate with a first side adjacent to the fluid passage inlet, an actuated mount configured to move the floating plate relative to the fixed plate, and a linkage element for connecting the floating plate to the actuated mount. The linkage element includes a mounting flange configured to slidably engage the floating plate.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventors: Nicholas W. Kantany, Edward Boucher, Kristine Marie Carnavos, Adam Covino, Melaine Ho, Jorge I. Farah, Donald W. Peters
  • Patent number: 9835091
    Abstract: A system has a surface intended to separate two chambers within the system. The surface has an aperture for allowing passage of at least one communication conduit. A shroud is positioned on the surface at the aperture, and has at least two portions defining a central opening to allow the communication conduit to pass through the aperture and shroud. The two portions of shroud have mating clamp ears in contact with each other. Securement members tighten the clamp ears against each other to provide a seal at an end of the shroud remote from the surface.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: December 5, 2017
    Assignee: United Technologies Corporation
    Inventor: Pellegrino J. Pisacreta
  • Publication number: 20170341985
    Abstract: A method for forming in situ a boron nitride reaction product locally on a reinforcement phase of a ceramic matrix composite material includes the steps of providing a ceramic matrix composite material having a fiber reinforcement material; and forming in situ a layer of boron nitride on the fiber reinforcement material.
    Type: Application
    Filed: July 24, 2017
    Publication date: November 30, 2017
    Applicant: United Technologies Corporation
    Inventors: Neal Magdefrau, Paul Sheedy
  • Publication number: 20170343007
    Abstract: A blade assembly may be configured to rotate about an axis of a gas turbine engine. The blade assembly may include a blade and a blade cover. A blade may include a first surface defining a perimeter of a cavity in the blade. A first portion of the perimeter of the cavity includes a lip. A blade cover disposed over the cavity in the blade, such that the cavity is disposed between the blade and the blade cover, and under the lip, such that blade cover is between a portion of the blade and the cavity.
    Type: Application
    Filed: May 25, 2016
    Publication date: November 30, 2017
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: James R. Murdock
  • Publication number: 20170343011
    Abstract: An improved stator assembly is disclosed. The stator assembly may comprise an exit guide vane, an OD ring, and an ID ring. The exit guide vane may couple at one end to the OD ring and at an opposite end to the ID ring. The exit guide vane may comprise a leading edge opposite of a trailing edge. The OD ring and the ID ring may couple to a diffuser assembly of a gas turbine engine. The stator assembly may further comprise an aft OD seal, a forward OD seal, an ID seal, and a diffuser assembly seal to reduce airflow leaks around the stator assembly.
    Type: Application
    Filed: April 22, 2016
    Publication date: November 30, 2017
    Applicant: United Technologies Corporation
    Inventors: Frederick M. Schwarz, Jeffrey D. Ponchak
  • Publication number: 20170342535
    Abstract: A method for heat treating metal alloy powder includes (a) introducing metal alloy powder to a chamber having a floor and a sidewall; (b) flowing a fluidizing gas through the floor and into the chamber to fluidize the metal alloy powder in the chamber; (c) flowing an additional gas through the sidewall into the chamber; and (d) heating the chamber to heat treat the metal alloy powder in the chamber. A system for heat treating metal alloy powder includes an inner chamber having a porous floor and a porous sidewall; an outer chamber, the inner chamber being inside of the outer chamber and defining an annular space between the outer chamber and the inner chamber, wherein the outer chamber and the inner chamber are inside a furnace; a source of fluidizing gas connected to the porous floor through the annular space; and a source of additional gas communicated with the porous sidewall through the annular space.
    Type: Application
    Filed: May 26, 2016
    Publication date: November 30, 2017
    Applicant: United Technologies Corporation
    Inventors: Ying She, John A. Sharon, Aaron T. Nardi