Patents Assigned to Raytheon Technologies Corporation
  • HEAT EXCHANGER HEADER STRUCTURES
    Publication number: 20230235976
    Abstract: In accordance with at least one aspect of this disclosure, a transition structure for a heat exchanger can include a body defining a dome cavity. The dome cavity can be configured to transition flow between at least one first channel and a plurality of second channels having a different number than the at least one first channel.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 27, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Kathryn L. Kirsch, Robert H. Dold, Paul Attridge, Alexandru Cadar
  • Carbon Face Seal
    Publication number: 20230235678
    Abstract: An apparatus has: a first member; a shaft rotatable relative to the first member about an axis; and a seal system. The seal system has a seal carrier having: an axially-extending wall having an inner diameter (ID) surface; and a radially-extending wall having a first surface. A seal is carried by the first member and has: an outer diameter (OD) surface; and a seal face. A seat is carried by the shaft and has a seat face in sliding sealing engagement with the seal face. One or more springs bias the seal carrier relative to the first member so as to bias the seal face against the seat face. At least one of the seal carrier inner diameter (ID) surface and seal outer diameter (OD) surface is formed by a coating.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 27, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Andrew V. Schwendenmann, Jacob Peter Mastro
  • HEAT TRANSFER SYSTEMS FOR SUPERCONDUCTORS
    Publication number: 20230238871
    Abstract: A cooling system for a superconducting electric machine may comprise a fluid reservoir and a first fluid comprising a first mixture of hydrogen and helium configured to be stored in the fluid reservoir. A plurality of conduits may be fluidly coupled to the fluid reservoir and may form a closed loop between the fluid reservoir and the superconducting electric machine.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 27, 2023
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: ABBAS A. ALAHYARI, PARAG M. KSHIRSAGAR
  • System and method for laser drilling of shaped cooling holes
    Patent number: 11707805
    Abstract: A laser hole drilling system. The system includes a laser source that generates a laser beam along an optical axis, a cylindrical lens along the optical axis downstream of the laser source, and a spherical lens downstream of the cylindrical lens, the spherical lens offset from the optical axis to provide an anamorphic optical train to generate an asymmetric teardrop shaped energy distribution at a focal plane.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: July 25, 2023
    Assignee: Raytheon Technologies Corporation
    Inventor: Michael Winter
  • Method and casting core for forming a landing for welding a baffle inserted in an airfoil
    Patent number: 11707779
    Abstract: A method and casting core for forming a landing for welding a baffle inserted into an airfoil are disclosed, wherein the baffle landing of the blade or vane is formed in investment casting by the casting core rather than by wax, reducing tolerances and variability in the location of the baffle inserted into the cooling cavity of airfoil when the baffle is welded to the baffle landing.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: July 25, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Tracy A. Propheter-Hinckley
  • Gas turbine engine article with branched flange
    Patent number: 11708765
    Abstract: An airfoil for a gas turbine engine includes a fiber-reinforced laminate composite airfoil fairing that defines a platform that has first and second radial sides, an airfoil section that extends off of the first radial side, and a branched flange that extends off of the second radial side. The branched flange includes a trunk that radially extends off of the second radial side and at least one branch that extends off of the trunk.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: July 25, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Robert A. White, III
  • Triangular-frame connection between fan case and core housing in a gas turbine engine
    Patent number: 11708772
    Abstract: A gas turbine engine includes a fan rotor driven by a fan drive turbine about an axis through a gear reduction to reduce a speed of the fan rotor relative to a speed of the fan drive turbine. A fan case surrounds the fan rotor, and a core engine with a compressor section, including a low pressure compressor. The fan rotor delivers air into a bypass duct defined between the fan case and the core engine. A rigid connection is between the fan case and the core engine includes three triangular-frame connecting members rigidly connected to the fan case at a fan case connection point, and to the core engine at a core engine connection point. The triangular-frame connecting members each are defined by two rigid legs which extend between the fan case and to the core engine, along directions each have a component extending radially inwardly and a component in opposed circumferential directions to each other.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: July 25, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Anthony R. Bifulco, David A. Topol
  • EXTENDED BULKHEAD PANEL
    Publication number: 20230228419
    Abstract: A combustor may comprise an outer combustor panel and an inner combustor panel radially inward of the outer combustor panel. A bulkhead panel may extend radially between the outer combustor panel and the inner combustor panel. An outer spacer may be located between an outer flange of the bulkhead panel and the outer combustor panel. An inner spacer may be located between an inner flange of the bulkhead panel and the inner combustor panel.
    Type: Application
    Filed: November 9, 2022
    Publication date: July 20, 2023
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Timothy S. Snyder, James B. Hoke
  • Turbine engine bleed waste heat recovery
    Patent number: 11702981
    Abstract: A gas turbine engine assembly includes a core engine that includes a core flow path where a core airflow is compressed in a compressor section, communicated to a combustor section, mixed with fuel and ignited to generate a high energy combusted gas flow that is expanded through a turbine section, a first tap at a location up stream of the combustor section for communicating a portion of the core airflow as a bleed airflow downstream of the combustor section, a heat exchanger that places the bleed airflow that is communicated from the first tap in thermal communication with the high energy combusted gas flow downstream of the combustor section, and a power turbine that is configured to generate shaft power from expansion of the heated bleed airflow, the power turbine includes an inlet that is configured to receive the heated bleed airflow from the heat exchanger.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: July 18, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Stephen H. Taylor, Alan Retersdorf
  • Airfoil with baffle having flange ring affixed to platform
    Patent number: 11702941
    Abstract: An airfoil includes an airfoil section that has an airfoil wall that defines leading and trailing ends and first and second sides that join the leading and trailing ends. The first and second sides span in a longitudinal direction between first and second ends. The airfoil wall circumscribes an internal core cavity. A platform is attached with the first end of the airfoil wall. The platform includes an opening that opens into the internal core cavity and a land region that circumscribes the opening. A baffle is formed of a tube and an attachment portion. The tube extends in the internal core cavity and the attachment portion has a flange ring that is affixed to the platform at the land region.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: July 18, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Scott A. Kovach, Tracy A. Propheter-Hinckley
  • Off-set duct heat exchanger
    Patent number: 11702984
    Abstract: A heat exchanger system for a propulsion system inlet duct includes a heat exchanger assembly that is disposed within an inlet duct assembly. The heat exchanger includes a heat exchanger with a front facing area that is greater than an area of the inlet duct that is transverse to a longitudinal length of the inlet duct.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: July 18, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Jon E. Sobanski, Malcolm MacDonald
  • Thermal management of tail cone mounted generator
    Patent number: 11702986
    Abstract: A gas turbine engine includes a turbine rotor connected to a main compressor rotor. A tail cone is mounted inward of an exhaust core flow. A generator rotor is adjacent a generator stator. The generator rotor and stator are mounted within the tail cone. A passage connects a bypass flow path to the tail cone. A cooling air compressor is operable within the passage. The turbine rotor drives a shaft to drive the generator rotor and the cooling compressor. A method is also disclosed.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: July 18, 2023
    Assignee: Raytheon Technologies Corporation
    Inventor: Gary D. Roberge
  • Seal coating
    Patent number: 11702950
    Abstract: A method of forming a coating includes disposing a substrate having a plurality of protrusions on a seal and layering a topcoat over the protrusions. The method of forming a coating also includes creating a wear pattern and converting the topcoat. A turbine section includes a casing, a plurality of blades within the casing, and a substrate deposited on the casing having a plurality of protrusions. The turbine also includes an unconverted topcoat disposed over the plurality of protrusions, the topcoat having segmented portions defining a plurality of faults extending from the protrusions through the topcoat. A method of forming a coating includes creating a channel in the coating during an initial rub event and converting the coating during a high-temperature event. Converting the coating includes preserving the channel created during the initial rub event.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: July 18, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: John R. Farris, Michael G. McCaffrey
  • Method of fabricating a ceramic composite
    Patent number: 11702369
    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 2, 2020
    Date of Patent: July 18, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Wayde R. Schmidt, Paul Sheedy
  • Baffle with two datum features
    Patent number: 11702987
    Abstract: A gas turbine engine article includes a baffle that is configured to be mounted in a cavity of a gas turbine engine component. The baffle has a baffle wall that circumscribes an open interior region. The baffle wall includes a forward wall, side walls, and an aft wall. The side walls include impingement orifices, and the aft wall defines two datum features. At least one of the datum features is a dimple that is a portion of a sphere.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: July 18, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Scott A. Kovach, Tracy A. Propheter-Hinckley
  • Line-of-sight coating fixture and apparatus
    Patent number: 11702732
    Abstract: An embodiment of a line-of-sight coating fixture includes a support structure, a spindle, and a shadow structure. The support structure includes a plurality of compartments disposed below a platter, each compartment having an opening on a periphery of the support structure. Each compartment is adapted to receive and secure a base of a workpiece such that a body of each workpiece to be coated is disposed about a periphery of the support structure and extends above the platter. The spindle is disposed through a center of the platter or support structure for rotating the workpieces thereabout. The shadow structure is disposed about the spindle, inside of the periphery, the shadow structure sized and adapted to shield a portion of each workpiece from line-of-sight coating material.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: July 18, 2023
    Assignee: Raytheon Technologies Corporation
    Inventor: Eric Jorzik
  • COOLING FOR DETONATION ENGINES
    Publication number: 20230220999
    Abstract: A combustor for a detonation engine includes a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned at least partially within the radially outer wall to define an annular detonation chamber having an inlet for fuel and oxidant and an outlet; a cooling flow passage defined along at least one of the radially outer wall and the radially inner wall and comprising at least two axially spaced cooling flow passage sections, whereby a different cooling rate can be implemented in the at least two axially spaced cooling flow passage sections.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 13, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Joseph Turney, Christopher Britton Greene, Peter AT Cocks, Andrzej Ernest Kuczek, James M. Donohue
  • Gas turbine engine airfoil frequency design
    Patent number: 11698002
    Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 3.46-3.76 inch (87.8-95.5 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.98-2.28 inch (50.2-57.8 mm). The airfoil element includes at least one of a first mode with a frequency of 1056 ± 10% Hz and a second mode with a frequency of 1582 ± 10% Hz.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 11, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: William R. Edwards, Steven J. Feigleson, Kate Hudon
  • Gas turbine engine with dynamic data recording
    Patent number: 11698031
    Abstract: A communication adapter of a gas turbine engine of an aircraft includes a communication interface configured to wirelessly communicate with an offboard system and to communicate with an engine control of the gas turbine engine, a memory system, and processing circuitry. The processing circuitry is configured to receive an engine control dynamic data recording request from the offboard system, confirm an authentication between the communication adapter and the engine control, transfer the engine control dynamic data recording request received at the communication adapter from the offboard system to the engine control based on the authentication, and transmit an update completion confirmation of the engine control from the communication adapter to the offboard system based on a confirmation message from the engine control.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 11, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: William C. Lamberti, Paul Raymond Scheid, Jason E. Posniak
  • Barrier coating with calcium aluminosilicate additive
    Patent number: 11697622
    Abstract: A gas turbine engine article includes a substrate and a silicate-resistant barrier coating disposed on the substrate. The silicate-resistant barrier coating is composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 11, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Richard Wesley Jackson, Xia Tang, Paul Sheedy