Patents Assigned to RAYTHEON TECHNOLOGY CORPORATION
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Patent number: 11713713Abstract: A gas turbine engine includes a fan that has fan blades wherein the fan delivers airflow to a bypass duct. A gearbox is defined along an engine axis. A low spool is arranged aft of the gearbox and coupled to drive the gearbox. A front center body assembly is defined around the engine axis. A flexible support supports the gearbox relative to the front center body assembly. A bearing package is mounted to the front center body assembly and the low spool. A front wall is mounted to the front center body assembly. The front wall is removable from the front center body assembly to access at least one of the gearbox or the bearing package. The low spool includes a low pressure compressor hub that provides a spline for engaging the bearing package.Type: GrantFiled: March 31, 2020Date of Patent: August 1, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Todd A. Davis, Brian P. Cigal
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Patent number: 11714195Abstract: An optical probe includes an optical housing, a transmitting lens and a receiving lens. The optical housing extends from a proximate end to an opposing distal end. The transmitting lens is disposed at the distal end and is configured to output a first transmitted signal beams having a first transmission axis and a second transmitted beam having a second transmission axis that is different from the first transmission axis. The receiving lens is disposed at the distal end and configured to receive the first and second reflected signal beams corresponding respectively to the first and second transmitted signal beams. The optical housing has formed therein a transmitting optical channel configured to communicate an input optical signal from the proximate end to the transmitting lens. A receiving optical channel separated from the transmitting optical channel communicates the first and second reflected signal beams to the proximate end.Type: GrantFiled: October 5, 2020Date of Patent: August 1, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Darren M. Wind, Michael J. Saitta, Ian F. Agoos, Alan E. Ingram
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Patent number: 11713679Abstract: A gas turbine engine includes a turbine section that has a plurality of turbine vanes. Each of the turbine vanes includes inner and outer platforms and an airfoil section that extends there between. The airfoil section is hollow and rib-less and has a first end at the outer platform and a second end at the inner platform. The airfoil section is tangentially bowed from the first end to the second end with a radius of curvature that is from 17 centimeters to 130 centimeters.Type: GrantFiled: January 27, 2022Date of Patent: August 1, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Christian X. Campbell, Howard J. Liles, Russell Kim
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Patent number: 11713681Abstract: A method of repairing a tip of an airfoil can comprise: removing a coating from the tip of the airfoil; preparing a repair area for bonding, the repair area including the tip and a portion of a concave side of the airfoil; applying an epoxy film and an abrasive component to the repair area; and bonding the epoxy film and the abrasive component to the repair area.Type: GrantFiled: May 18, 2022Date of Patent: August 1, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: Brian K. Holland
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Patent number: 11713688Abstract: A seal segment has an arcuate body having: a first end; a second end circumferentially opposite the first end; a first face; a second face axially opposite the first face; an inner diameter (ID) face; and an outer diameter (OD) face. The seal segment is shaped to interfit with a plurality of identical seal segments first end to second end to form a seal surrounding a central longitudinal axis. The first face has: a circumferential channel closer to the ID face than the OD face; and a plurality of channels extending from the circumferential channel to the OD face. The ID face has: a circumferential channel closer to the first face than the second face; and a plurality of channels extending from the circumferential channel to the second face. The ID face circumferential channel has an open end.Type: GrantFiled: December 3, 2021Date of Patent: August 1, 2023Assignee: Raytheon Technologies CorporationInventors: Jonathan Logan Miller, Thomas P. Obligado
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Publication number: 20230235976Abstract: 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: ApplicationFiled: January 21, 2022Publication date: July 27, 2023Applicant: Raytheon Technologies CorporationInventors: Kathryn L. Kirsch, Robert H. Dold, Paul Attridge, Alexandru Cadar
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Publication number: 20230235678Abstract: 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: ApplicationFiled: January 21, 2022Publication date: July 27, 2023Applicant: Raytheon Technologies CorporationInventors: Andrew V. Schwendenmann, Jacob Peter Mastro
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Publication number: 20230238871Abstract: 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: ApplicationFiled: January 21, 2022Publication date: July 27, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: ABBAS A. ALAHYARI, PARAG M. KSHIRSAGAR
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Patent number: 11707805Abstract: 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: GrantFiled: December 14, 2018Date of Patent: July 25, 2023Assignee: Raytheon Technologies CorporationInventor: Michael Winter
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Patent number: 11707779Abstract: 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: GrantFiled: June 29, 2021Date of Patent: July 25, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: Tracy A. Propheter-Hinckley
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Patent number: 11708765Abstract: 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: GrantFiled: May 13, 2022Date of Patent: July 25, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: Robert A. White, III
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Patent number: 11708772Abstract: 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: GrantFiled: March 22, 2022Date of Patent: July 25, 2023Assignee: Raytheon Technologies CorporationInventors: Anthony R. Bifulco, David A. Topol
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Publication number: 20230228419Abstract: 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: ApplicationFiled: November 9, 2022Publication date: July 20, 2023Applicant: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Timothy S. Snyder, James B. Hoke
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Patent number: 11702981Abstract: 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: GrantFiled: April 20, 2022Date of Patent: July 18, 2023Assignee: Raytheon Technologies CorporationInventors: Stephen H. Taylor, Alan Retersdorf
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Patent number: 11702941Abstract: 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: GrantFiled: August 6, 2019Date of Patent: July 18, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Scott A. Kovach, Tracy A. Propheter-Hinckley
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Patent number: 11702984Abstract: 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: GrantFiled: January 31, 2022Date of Patent: July 18, 2023Assignee: Raytheon Technologies CorporationInventors: Jon E. Sobanski, Malcolm MacDonald
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Patent number: 11702986Abstract: 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: GrantFiled: October 1, 2020Date of Patent: July 18, 2023Assignee: Raytheon Technologies CorporationInventor: Gary D. Roberge
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Patent number: 11702950Abstract: 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: GrantFiled: April 18, 2019Date of Patent: July 18, 2023Assignee: Raytheon Technologies CorporationInventors: John R. Farris, Michael G. McCaffrey
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Patent number: 11702369Abstract: 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: GrantFiled: November 2, 2020Date of Patent: July 18, 2023Assignee: Raytheon Technologies CorporationInventors: Wayde R. Schmidt, Paul Sheedy
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Patent number: 11702987Abstract: 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: GrantFiled: September 21, 2021Date of Patent: July 18, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Scott A. Kovach, Tracy A. Propheter-Hinckley