Patents Assigned to United Technologies Corporation
  • DUCT RUPTURE DETECTION SYSTEM
    Publication number: 20200248580
    Abstract: A system for detecting a ruptured duct transporting a high-temperature fluid within a gas turbine engine is disclosed. In various embodiments, the system includes a rupture detection line configured to extend within a first fire zone of the gas turbine engine; one or more rupture sensing elements in electrical communication with and disposed along the rupture detection line, the one or more rupture sensing elements configured to detect a presence of a heated fluid having a heated fluid temperature less than a fire temperature; and a processor configured to monitor the one or more rupture sensing elements.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 6, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Nathaniel G. Scarborough, Mainul M. Islam
  • TANDEM FAN FOR BOUNDARY LAYER INGESTION SYSTEMS
    Publication number: 20200248560
    Abstract: A tandem fan for a boundary layer ingestion engine is disclosed. In various embodiments, the tandem fan includes a fan disk configured for rotation about a longitudinal axis; a primary fan blade extending radially from the fan disk, the primary fan blade having a primary fan blade span; and a secondary fan blade extending radially from the fan disk, the secondary fan blade having a secondary fan blade span within about ninety percent to about one-hundred percent of the primary fan blade span.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 6, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Michael M. Joly, Dilip Prasad, Om P. Sharma
  • POWER ASSISTED ENGINE START BLEED SYSTEM
    Publication number: 20200248627
    Abstract: A system for bleeding air from a core flow path of a gas turbine engine is disclosed. In various embodiments, the system includes a bleed valve having a bleed valve inlet configured to receive a bleed air from a first access point to the core flow path and a bleed valve outlet; and an air motor having a first air motor inlet configured to receive the bleed air from the bleed valve outlet and a first air motor outlet configured to exhaust the bleed air, the air motor configured to pump the bleed air from the core flow path of the gas turbine engine.
    Type: Application
    Filed: October 16, 2019
    Publication date: August 6, 2020
    Applicant: United Technologies Corporation
    Inventor: Martin Richard Amari
  • SPLINE LEAD IN FEATURE FOR ASSEMBLY AND DAMAGE IMPROVEMENT
    Publication number: 20200248629
    Abstract: A spline assembly includes a shaft having an outer surface with a shaft spline extending along the outer surface. The spline assembly may further include a hub having an inner surface with a hub spline extending along the inner surface and configured to mate with the shaft spline of the shaft. The spline assembly may further include a spline engagement aid configured to be coupled to the shaft and having an aid spline configured to engage with the hub spline to facilitate alignment of the shaft spline relative to the hub spline.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Applicant: United Technologies Corporation
    Inventors: David Maliniak, Ronald Mazurkiewicz, JR.
  • ADDITIVE MANUFACTURING COVER GAS SHIELD
    Publication number: 20200246871
    Abstract: A gas shield for an additive manufacturing system includes a bracket and a flexible curtain mounted to the bracket. A method of additively manufacturing includes removably mounting a gas shield to at least partially segregate a powder dispenser and a chamber.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 6, 2020
    Applicant: United Technologies Corporation
    Inventors: Lawrence Binek, Zachary Ryan Gibbons, Jesse R. Boyer
  • MULTI-WALL DEPOSITED THIN SHEET STRUCTURE
    Publication number: 20200248314
    Abstract: A method for forming a metallic structure having multiple layers includes providing a main tool having a main formation surface corresponding to a desired shape of a first layer of material. The method also includes depositing the first layer of material on the main formation surface using a cold-spray deposition technique. The method also includes positioning a secondary tool having a secondary formation surface in a portion of a first volume defined by a first surface of the first layer of material. The method also includes depositing a second layer of material on the secondary formation surface using the cold-spray deposition technique. The method also includes removing the secondary tool such that the first volume is positioned between the first layer of material and the second layer of material.
    Type: Application
    Filed: December 6, 2019
    Publication date: August 6, 2020
    Applicant: United Technologies Corporation
    Inventors: William J. Brindley, Gary D. Roberge
  • Additive manufacturing system for minimizing thermal stresses
    Patent number: 10730110
    Abstract: A build plate for an additive manufacturing system is disclosed. The build plate includes a support structure, a sub-plate, and one or more transducers. The support structure is configured to support a stack of sintered layers of a pulverant material. Further, the support structure extends orthogonally to a build direction. The sub-plate is arranged along the support structure, and defines a transducer cavity. One or more transducers are arranged in the transducer cavities. The one or more transducers are operable to cause vibration of the support structure and the stack parallel to the build direction. Such vibration relieves internal stresses caused by sintering of the stack.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: August 4, 2020
    Assignee: United Technologies Corporation
    Inventors: Sergey Mironets, Alexander Staroselsky
  • LIGHT WEIGHT LOW BLOCKAGE SLIDER SEAL
    Publication number: 20200240280
    Abstract: A slider seal assembly for a gas turbine engine, comprising a housing comprising an outer surface and an inner surface, and a recessed opening between the inner surface and the outer surface, wherein the inner surface of the housing includes a flat portion configured to match a receiver on an inner wall of a casing of the gas turbine engine; a seal plate received within the recessed opening and moveable relative to the housing; and a retaining ring configured to retain the seal plate adjacent the housing, the retaining ring includes a plurality of tabs configured to retain the seal plate adjacent the housing.
    Type: Application
    Filed: January 29, 2019
    Publication date: July 30, 2020
    Applicant: United Technologies Corporation
    Inventors: Curtis C. Cowan, Paul W. Duesler, Michael R. Thomas, Michael Joseph Murphy
  • RETAINING ASSEMBLY FOR A GAS TURBINE ENGINE
    Publication number: 20200240557
    Abstract: A retaining assembly may comprise a bracket assembly having a first end and a second end. The first end may be configured to mount to a clamping band. The retaining assembly may further comprise a retention component. The retention component may have a clevis coupled to the second end. The retaining assembly may be coupled to an otherwise loose external component on a gas turbine engine. The retaining assembly may keep the otherwise loose external component fixed to the gas turbine engine during maintenance operations and prevent the otherwise loose external component from being lost or misplaced.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Edward Guevel
  • ADDITIVE MANUFACTURED DUCTED HEAT EXCHANGER SYSTEM
    Publication number: 20200240328
    Abstract: A ducted heat exchanger system for a gas turbine engine includes an additive manufactured heat exchanger core with a contoured external and/or internal geometry. A method of additively manufacturing a heat exchanger for a gas turbine engine includes additively manufacturing a core of a heat exchanger to set a ratio of local surface area to flow area to control a pressure drop per unit length along the core.
    Type: Application
    Filed: March 26, 2020
    Publication date: July 30, 2020
    Applicant: United Technologies Corporation
    Inventor: John T. Schmitz
  • Light weight component and method of making
    Patent number: 10724131
    Abstract: A method of making a light weight component is provided. The method including the steps of: forming a metallic foam core into a desired configuration; and applying an external metallic shell to an exterior surface of the metallic foam core after it has been formed into the desired configuration.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: July 28, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Gary D. Roberge
  • Nacelle short inlet
    Patent number: 10724541
    Abstract: A fan assembly for a gas turbine engine includes a fan including a plurality of fan blades. Each fan blade extends radially outwardly from a fan hub to a blade tip. The plurality of blade tips define a fan diameter. A nacelle surrounds the fan and defines a fan inlet upstream of the fan, relative to an airflow direction into the fan. The nacelle has a forwardmost edge defining an inlet length from the forwardmost edge to a leading edge of a fan blade of the plurality of fan blades. A ratio of inlet length to fan diameter is between 0.20 and 0.45. A nacelle inner surface defines a nacelle flowpath. The nacelle flowpath has a convex throat portion and a concave diffusion portion between the throat portion and the leading edge of the fan blade at a bottommost portion of the nacelle.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: July 28, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Yuan J. Qiu, Robert E. Malecki, Wesley K. Lord
  • Thrust efficient turbofan engine
    Patent number: 10724479
    Abstract: A disclosed turbofan engine includes a gas generator section for generating a gas stream flow. A speed reduction device is driven by the power turbine. A propulsor section includes a fan driven by the power turbine through the speed reduction device at a second speed lower than the first speed for generating propulsive thrust as a mass flow rate of air through a bypass flow path. The fan includes a tip diameter greater than about fifty (50) inches and an Engine Unit Thrust Parameter (“EUTP”) defined as net engine thrust divided by a product of the mass flow rate of air through the bypass flow path, a tip diameter of the fan and the first rotational speed of the power turbine is less than about 0.30 at a take-off condition.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: July 28, 2020
    Assignee: United Technologies Corporation
    Inventor: Jayant Sabnis
  • FRUSTIC LOAD TRANSMISSION FEATURE FOR COMPOSITE STRUCTURES
    Publication number: 20200232332
    Abstract: A stator vane may comprise an airfoil extending between a first platform and a second platform, the airfoil including a core extending relatively orthogonal to the first platform and the second platform, at least one of the first platform or second platform comprising a frustic load transmission feature, wherein the frustic load transmission feature comprises at least a first angular surface disposed proximate a platform edge, wherein the first angular surface is defined by a non-orthogonal angle ? with respect to an outer platform surface.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 23, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Bryan H. Farrar, Andrew J. Lazur, Howard J. Liles, Bryan P. Dube
  • Method for heat treating components
    Patent number: 10718042
    Abstract: A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: July 21, 2020
    Assignee: United Technologies Corporation
    Inventors: Max A. Kaplan, Mario P. Bochiechio, Stephen D. Rittenburg, Paul D. Bennett
  • Dual cooling airflow to blades
    Patent number: 10718213
    Abstract: An airfoil may comprise a root and an airfoil body radially outward of the root. The airfoil body may define a first cooling chamber and a second cooling chamber. A first passage may be defined within the root and configured to direct a first airflow radially outward through the root into the first cooling chamber. A second passage may be defined within the root and configured to direct a second airflow radially outward through the root and into the second cooling chamber.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: July 21, 2020
    Assignee: United Technologies Corporation
    Inventors: Matthew A Devore, Jonathan Ortiz
  • Direct writing of conformal and free-form magnets
    Patent number: 10717229
    Abstract: A system for direct writing a conformal or free-form magnet includes producing a magnetic ink compound by mixing an photopolymer base and a magnetic material powder, extruding a layer of the magnetic ink compound through a nozzle on to a target substrate to form a layer, soft-curing the layer by exposing the layer to a first light, repeatedly extruding a layer and soft-curing the layer, then post-curing the magnet by exposing the magnet to a second light and an elevated temperature.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 21, 2020
    Assignee: United Technologies Corporation
    Inventors: Sameh Dardona, Paul Sheedy, Wayde R. Schmidt, Dustin D. Caldwell, Slade R. Culp
  • Carbon seal spring retention
    Patent number: 10718234
    Abstract: A seal assembly for a turbine engine extends along a center axis and includes a seal support and a seal carrier configured to translate relative the seal support. A seal is connected to the seal carrier and a spring is disposed between the seal support and the seal carrier. A spring carrier is disposed between the spring and the seal support. A first end of the spring is connected to the spring carrier and the spring carrier is connected to the seal support. The spring includes a second end disposed opposite the first end of the spring. The second end of the spring contacts the annular seal carrier.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 21, 2020
    Assignee: United Technologies Corporation
    Inventor: Russell B. Witlicki
  • Variable-geometry boundary layer diverter
    Patent number: 10718272
    Abstract: A gas turbine engine comprises a housing having an inlet leading to a fan rotor. A bypass door is mounted upstream of the inlet to the fan rotor, and is moveable away from a non-bypass position to a bypass position to selectively bypass boundary layer air vertically beneath the engine. An aircraft is also disclosed.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: July 21, 2020
    Assignee: United Technologies Corporation
    Inventors: Wesley K. Lord, Matthew R Feulner, Gabriel L. Suciu, Jesse M. Chandler
  • SHROUD AND SHROUD ASSEMBLY PROCESS FOR VARIABLE VANE ASSEMBLIES
    Publication number: 20200224545
    Abstract: A shroud assembly may comprise a first ring, a second ring aft of the first ring, and a shroud disposed between the first ring and the second ring. The shroud may comprise a plurality of circumferentially adjacent shroud segments. Each shroud segment of the plurality of circumferentially adjacent shroud segments may extend axially from the first ring to the second ring.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 16, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: TUSHAR M. PATEL, VALERIY KRUTIY, AHAMED FOLIQ AHAMED LAIKALI, SAIKUMAR JUPALLY, GURJEET SINGH, SIDDA BASHA DUDEKULA