Patents Assigned to Raytheon Technologies Corporation
  • MULTI-WALL DEPOSITED THIN SHEET STRUCTURE
    Publication number: 20230144268
    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: August 3, 2022
    Publication date: May 11, 2023
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: William J. Brindley, Gary D. Roberge
  • METHODS FOR POWER TRANSFER IN CRYOGENIC FUEL APPLICATIONS
    Publication number: 20230145878
    Abstract: A fuel power transfer system for an engine may include a cryogenic fuel supply, a fuel pump in fluid communication with the cryogenic fuel supply, a multi-position valve in fluid communication with the fuel pump and a combustion chamber of the engine, a fuel turbine operatively coupled to the fuel pump and having a primary discharge port in fluid communication with the combustion chamber, a primary heat exchanger in fluid communication between the multi-position valve and the fuel turbine, and a gearbox operatively coupled to the fuel turbine and the fuel pump and configured to transfer power from the fuel turbine to the engine.
    Type: Application
    Filed: July 29, 2022
    Publication date: May 11, 2023
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Gary D. Roberge
  • PISTON SEAL ASSEMBLY GUARDS AND INSERTS FOR SEAL GROOVE
    Publication number: 20230143483
    Abstract: A method of repairing a piston seal assembly comprises removing worn material from a piston seal groove to generate a worked seal groove, applying a groove buildup member to the worked seal groove, and disposing a seal member proximate the groove buildup member.
    Type: Application
    Filed: August 23, 2022
    Publication date: May 11, 2023
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Patrick Bowler
  • System for an improved stator assembly
    Patent number: 11643937
    Abstract: An improved stator assembly for use in a gas-turbine engine is disclosed. The stator assembly may comprise a vane, an inner diameter (ID) ring, an outer diameter (OD) ring, a vane disposed between the ID ring and the OD ring, a potting component coupling the vane to at least one of the OD ring or the ID ring, and a potting embedded component disposed within the potting component. The potting embedded component may prevent disbond of the potting component during operation of the gas-turbine engine.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: May 9, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Sarah J. Zecha, Brian Barainca, Brian Duguay, Uriah C. Noble
  • Integral core bumpers
    Patent number: 11642720
    Abstract: A casting core assembly is disclosed herein. The casting core assembly comprises a casting core and a bumper assembly. The bumper assembly is disposed on an outer surface of the casting core. The bumper assembly comprises a receptacle and a metal apparatus. The metal apparatus may be a pin, a sphere, or the like.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: May 9, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Carl R. Verner, David A. Krause
  • Internal cooling circuits for CMC and method of manufacture
    Patent number: 11643948
    Abstract: A method for forming a ceramic matrix composite (CMC) component with an internal cooling channel includes partially densifying a first fiber preform to form a portion of a final ceramic matrix volume, machining a first channel into a surface of the partially densified first fiber preform, covering the first channel with a fibrous member to form a near net shape fiber preform with an internal passage formed by the first channel and the fibrous member, and densifying the near net shape fiber preform.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: May 9, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Thomas E. Clark, Kathryn S. Read, Winston Gregory Smiddy, Andrew J. Lazur
  • Seals and methods of making seals
    Patent number: 11643939
    Abstract: A tribological and creep resistant system configured to operate at temperatures in excess of 700° C. A seal body extends between a leading edge and a trailing edge. A first component contact surface is adjacent the leading edge and a second component contact surface is adjacent the trailing edge. The seal body is formed from a high entropy alloy.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: May 9, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • Turbine Engine Shaft Coating
    Publication number: 20230139403
    Abstract: A coated steel substrate has a steel substrate having a surface. A coating layer is atop the surface. The coating layer includes: aluminum activated by indium; and a ceramic binder. The coating also may comprise of multiple layers with different properties to facilitate the galvanic protection capability.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 4, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Lei Chen, Poulomi Sannigrahi
  • REACTIVE THERMAL BARRIER COATING
    Publication number: 20230139765
    Abstract: A calcium-magnesium-alumino-silicate (CMAS)-reactive thermal barrier coating including a ceramic coating; and a CMAS-reactive overlay coating, wherein the CMAS-reactive overlay coating conforms to a surface of the ceramic coating and comprises a compound that forms a stable high melting point crystalline precipitate when reacted with molten CMAS at a rate that is competitive with CMAS infiltration kinetics into the thermal barrier coating; wherein the CMAS-reactive overlay coating comprises a material selected from a group consisting of a non-rare earth oxide and a mixed non-rare earth oxide; and wherein the ceramic coating phase is chemically stable with the CMAS-reactive overlay coating.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Elisa M. Zaleski, Brian T. Hazel, Kaylan M. Wessels
  • ELECTRIC HEATING FOR TURBOMACHINERY CLEARANCE CONTROL POWERED BY HYBRID ENERGY STORAGE SYSTEM
    Publication number: 20230136475
    Abstract: A method for active bi-directional control of an outer structure of a gas turbine engine comprises sending, by a controller, a first control signal to a power electronics for varying an electric current supplied to a heating element to cause the outer structure to move in a first radial direction, and sending, by the controller, a second control signal to a valve assembly for varying a cooling air flow supplied to the outer structure to cause the outer structure to move in a second radial direction. The first radial direction is opposite the second radial direction.
    Type: Application
    Filed: July 18, 2022
    Publication date: May 4, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Neil Terwilliger, Christopher J. Hanlon, Sorin Bengea, Zubair Ahmed Baig
  • Boost spool flow control and generator load matching via load compressor
    Patent number: 11639690
    Abstract: A gas turbine engine includes a first spool of a primary flow path and a second spool of a secondary flow path. The second spool is nonconcentric with the first spool. The second spool includes a boost compressor and a load compressor in fluid communication with an inlet plenum. An inlet duct assembly and an outlet duct assembly place the secondary flow path in communication with the primary flow path. The gas turbine includes a controller operable to vary open areas of variable inlet guide vanes to control a flow division between the boost compressor and the load compressor.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: May 2, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel B. Kupratis, Paul R. Hanrahan
  • Method of fabricating a glass-ceramic matrix composite
    Patent number: 11639304
    Abstract: A method of fabricating a glass matrix composite includes providing a fiber preform in a cavity of a die tooling, the fiber preform circumscribing an interior region; providing a parison of glass matrix material in the interior region, the glass matrix material having a first viscosity; introducing pressurized inert gas into the parison to outwardly inflate the parison against the fiber preform; and while under pressure from the pressurized inert gas, decreasing the first viscosity of the glass matrix material to a second viscosity. The pressure and the second viscosity cause the glass matrix material to flow and infiltrate into the fiber preform to thereby form a consolidated workpiece. The consolidated workpiece is then cooled to form a glass matrix composite.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: May 2, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: John J. Gangloff, Jr., Paul Sheedy, Rajiv Ranjan
  • SYSTEM AND METHOD FOR GAS TURBINE ENGINE ROTOR BOW MITIGATION
    Publication number: 20230129383
    Abstract: A rotor bow mitigation system for a gas turbine engine includes a control system in communication with an actuator, the control system actuates a power source to repeatedly actuate the actuator for a duration of time to intermittently rotate a rotary component such as a high spool of the gas turbine engine. A method of rotor bow mitigation for a gas turbine engine includes intermittently actuating an actuator of a rotor bow mitigation system in selective mechanical connection with a gear within an accessory gearbox to intermittently rotate the rotary component of the gas turbine engine to mitigate rotor bow conditions.
    Type: Application
    Filed: October 21, 2021
    Publication date: April 27, 2023
    Applicant: Raytheon Technologies Corporation
    Inventor: Bradley C. Schafer
  • LOW DENSITY HYBRID KNIFE SEAL
    Publication number: 20230131676
    Abstract: A hybrid abradable seal including a stator substrate having an external surface; a casing coupled to the external surface, the casing including radial walls extending radially from the external surface; an abradable material disposed within the casing; the abradable material and the casing being coupled together and configured to resist a deflection responsive to engine gas loads.
    Type: Application
    Filed: October 25, 2021
    Publication date: April 27, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: John Harner, Kerry Lynn Davis, David J. Mathiau
  • Reducing contrails from an aircraft powerplant
    Patent number: 11635022
    Abstract: A method is provided during which an aircraft powerplant is provided. The aircraft powerplant includes a combustor and a water recovery system. The water recovery system includes a condenser and a reservoir. Fuel is combusted within the combustor to provide combustion products. Water is extracted from the combustion products using the condenser. The water recovery system is operated in one of a plurality of modes based on likelihood of contrail formation. The modes include a first mode and a second mode, where the water is collected within the reservoir during the first mode, and where the water passes through the water recovery system during the second mode.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: April 25, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Neil J. Terwilliger, Joseph B. Staubach, David L. Ma
  • Redox flow battery with electrolyte balancing and compatibility enabling features
    Patent number: 11637298
    Abstract: A redox flow battery includes first and second cells. Each cell has electrodes and a separator layer arranged between the electrodes. A first circulation loop is fluidly connected with the first electrode of the first cell. A polysulfide electrolyte solution has a pH 11.5 or greater and is contained in the first recirculation loop. A second circulation loop is fluidly connected with the second electrode of the second cell. An iron electrolyte solution has a pH 3 or less and is contained in the second circulation loop. A third circulation loop is fluidly connected with the second electrode of the first cell and the first electrode of the second cell. An intermediator electrolyte solution is contained in the third circulation loop. The cells are operable to undergo reversible reactions to store input electrical energy upon charging and discharge the stored electrical energy upon discharging.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: April 25, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Michael L. Perry
  • Gas turbine engine with forward moment arm
    Patent number: 11635025
    Abstract: A gas turbine engine includes a plurality of fan blades rotatable about an axis, wherein each of the plurality of fan blades includes a leading edge. The gas turbine engine also includes turbine section includes an aft most turbine blade having a trailing edge and a geared architecture driven by the turbine section for rotating the plurality of fan blades about the axis. A center of gravity of the gas turbine engine is located a first axial distance from the trailing edge of the aft most turbine blade that is between about 35% and about 75% of a total length between the leading edge of the plurality of fan blades and the trailing edge of the aft most turbine blade.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 25, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: David Bomzer, Frederick M. Schwarz
  • Methods and assemblies for bonding airfoil components together
    Patent number: 11634989
    Abstract: During a bonding process, a tip cap and an airfoil base are provided. The tip cap is arranged on the airfoil base. The tip cap is diffusion bonded to the airfoil base.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: April 25, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel A. Bales, Brian T. Hazel, Thomas DeMichael
  • Machining of ceramic matrix composite during preforming and partial densification
    Patent number: 11633816
    Abstract: A method of forming an aerodynamic component for use in a gas turbine engine using ceramic matrix composites (CMCs) is provided. The method includes executing a full densification of the CMCs once a final shape of the aerodynamic component is achieved, identifying first and second sectors of an exterior surfaces of the aerodynamic component which have a surface roughness of less than a first roughness level and identifying second sectors of the exterior surface of the component which have a surface roughness of greater than a second roughness level, machining the first sectors to increase the surface roughness to greater than the first roughness level and machining the second sectors to decrease the surface roughness to less than the second roughness level.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: April 25, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Kendall J. Schneider, Alan C. Barron, Mary Colby
  • Low-profile sensor circuit mounting fixture
    Patent number: 11635333
    Abstract: A mounting fixture for mounting a sensor circuit to a support rail is disclosed. In various embodiments, the mounting fixture includes a bracket having a base portion and a first flange member extending from the base portion; a clamp fixture connected to the first flange member, the clamp fixture including a plate member; a first pin extending through the first flange member and the plate member; and a first fastener threaded on to the first pin and configured to secure the plate member to the first flange member.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: April 25, 2023
    Assignee: Raytheon Technologies Corporation
    Inventors: Colby S. Dunn, Christopher Waitkus