Patents Assigned to General Electric Company
  • Publication number: 20240084703
    Abstract: Methods for repairing a thermal barrier coating deposited on a component with localized spallation of the thermal barrier coating includes depositing a primer slurry on a thermally grown oxide of the component exposed by the localized spallation, depositing a ceramic slurry on the primer slurry, and heating the primer slurry and the ceramic slurry. The primer slurry includes a primer that includes at least one of a metal and a metal oxide. The ceramic slurry includes a ceramic material, a ceramic slurry binder material, and a ceramic slurry fluid carrier. Heating the primer slurry and the ceramic slurry forms a first chemical bond between the primer and the thermally grown oxide and a second chemical bond between the primer and the ceramic material.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 14, 2024
    Applicant: General Electric Company
    Inventors: Atanu Saha, Hrishikesh Keshavan, Mamatha Nagesh, Ambarish J. Kulkarni, Bernard P. Bewlay
  • Patent number: 11927134
    Abstract: A gas turbine engine is provided, having a turbomachine and a rotor assembly driven by the turbomachine and operable at a first blade passing frequency (f1) greater than or equal to 2,500 hertz and less than or equal to 5,000 hertz during a high power operating condition; a heat exchanger positioned within an annular duct and extending substantially continuously along the circumferential direction, wherein an effective transmission loss (ETL) for the heat exchanger positioned within the annular duct is between 5 decibels and 1 decibels for a high power operating condition, and wherein the heat exchanger comprises a heat transfer section defining an acoustic length (Li), and wherein an Operational Acoustic Reduction Ratio (OARR) is greater than or equal to 0.75 to achieve the ETL at the high power operating condition, the OARR equal to: sin ? ? ( 2 × ? × f 1 a 1 × L i ) 2 wherein a1 is equal to 13,200 inches per second during the high power operating condition.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Scott Alan Schimmels, Jeffrey Douglas Rambo, Timothy Richard DePuy, Steven B. Morris
  • Patent number: 11925988
    Abstract: Methods for reducing a concentration of hexavalent chromium within a first aluminum slurry by adding a reducing agent to form a second aluminum slurry are provided. The reducing agent causes a chemical reduction reaction with the hexavalent chromium compound of the first aluminum slurry to form a trivalent chromium compound within the second aluminum slurry such that a first weight ratio of hexavalent chromium to trivalent chromium in the first aluminum slurry is decreased to a second weight ratio of hexavalent chromium to trivalent chromium in the second aluminum slurry, with the second weight ratio being less than the first weight ratio.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Lawrence Bernard Kool, Mark Alan Rhoads
  • Patent number: 11927142
    Abstract: Systems and methods are disclosed for estimating or determining a rate or an amount of fuel coke formation in a fuel system, such as of a gas turbine engine. The system is operable to control a rate of fuel coke formation. The system may include a sensor that measures an operating parameter associated with fuel coke formation in the fuel system. A controller is in communication with the sensor to receive the signal therefrom for determining an amount or a rate of fuel coking in the fuel system. Based on this determination the controller may adjust the rate of fuel coke formation by adjusting the operation of the turbine engine, a thermal management system of the turbine engine, or the fuel system.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Eric R. Westervelt, Stefan Joseph Cafaro, James R. Reepmeyer, Arthur W. Sibbach, Constantinos Minas
  • Patent number: 11927401
    Abstract: A heat exchange system for a gas turbine engine includes a first heat exchanger that defines a first heat source flowpath, a second heat exchanger that defines a second heat source flowpath, and a coolant fluid circuit. The coolant fluid circuit defines a first coolant flowpath that extends through the first heat exchanger and is in thermal communication with the first heat source flowpath, and a second coolant flowpath that extends through the second heat exchanger and is in thermal communication with the second heat source flowpath. The first coolant flowpath and the second coolant flowpath are arranged in a parallel flow configuration.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventor: Jeffrey Douglas Rambo
  • Patent number: 11927110
    Abstract: An apparatus and method relating to a cooling hole of a component of a turbine engine. The cooling hole can extend from an inlet to an outlet to define a connecting passage. The cooling hole can contain a diffusing section. The diffusing section can be defined by an interior surface having variable geometries.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Zachary Daniel Webster, Aaron Ezekiel Smith, Gregory Terrence Garay, Kirk D. Gallier
  • Patent number: 11926880
    Abstract: Methods for forming a dual-phase magnetic component from an initial component comprising a non-magnetic austenite composition are provided. The method may include: forming a coating on a portion of the surface of the initial component to form a masked area while leaving an unmasked area thereon. Thereafter the initial component may be heated to a treatment temperature such that nitrogen diffuses out of the unmasked area of the initial component to transform the non-magnetic austenite composition to a magnetic phase in the unmasked area. Thereafter, the initial component may be cooled from the treatment temperature to form a dual-phase magnetic component having a magnetic region corresponding to the unmasked area and a non-magnetic region corresponding to the masked area.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Shenyan Huang, Min Zou, Steve John Buresh, Wanming Zhang, Pazhayannur Ramanathan Subramanian
  • Patent number: 11925991
    Abstract: A milling device for machining a slot into an inner surface of a casing for a gas turbine engine. The milling device includes a frame assembly including multiple structural guides configured to engage structural features on the inner surface of the casing to maintain an axial position of the milling device relative to a longitudinal axis of the casing. The milling device also includes a milling cutter coupled to the frame assembly. The milling device is configured to be displaced in a circumferential direction relative to the longitudinal axis to machine the slot, via the milling cutter, along the inner surface of the casing in the circumferential direction.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: March 12, 2024
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Kurt Kramer Schleif, Fabian Gubelmann, Andrew David Ellis, Robert David Jones, Thomas Gloor, Roman Stefan Peter
  • Patent number: 11926106
    Abstract: An additively manufactured component and a method for manufacturing the same are provided. The additively manufactured component includes a cross sectional layer having a surface surrounding the cross sectional layer. The cross sectional layer is formed by moving a focal point of an energy source over a bed of additive material. A surface irregularity is formed on the surface by manipulating the energy level of the energy source. The surface may include a datum feature positioned at a predetermined location relative to the surface irregularity and the surface irregularity may be greater than a surface roughness of the surface but less than one millimeter.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Scott Alan Gold, Thomas Graham Spears
  • Patent number: 11927111
    Abstract: A blade for a turbine engine with a wall separating a cooling fluid flow and a hot gas fluid flow and having a heated surface along which the hot gas fluid flow flows and a cooled surface facing the cooling fluid flow. A plurality of cooling holes each having a passage extending between an inlet at the cooled surface and an outlet at the heated surface. The outlet extending between an upstream end and a downstream end with respect to the hot gas fluid flow to define a distance, the passage defining a centerline forming a first angle (?) with the heated surface.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Jonathan Michael Rausch, Zachary Daniel Webster, Kevin Robert Feldmann, Andrew David Perry, Kirk Douglas Gallier, Daniel Endecott Osgood
  • Patent number: 11927103
    Abstract: A method of mitigating thermal rotor bow in a rotor assembly of a turbine engine may include performing a plurality of motoring cycles. The plurality of motoring cycles may include receiving feedback on a temperature within a turbine engine in a post-shutdown state, actuating a starter motor when the temperature is greater than a predetermined threshold, operating the starter motor for a motoring time to exhaust some residual heat from the turbine engine, and shutting down the starter motor after the motoring time.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Robert Charles Hon, Amid Ansari, Michael Scott McCambridge, Thomas Earl Gillingham
  • Patent number: 11927105
    Abstract: Apparatus, systems, and articles of manufacture are disclosed to dynamically support axial thrust in pumps. Examples disclosed herein include a thrust bearing system including a thrust disc coupled to an impeller shaft; a first thrust pad coupled to a body of the pump, the first thrust pad positioned on a forward side of the thrust disc; a second thrust pad coupled to the body of the pump, the second thrust pad positioned on an aft side of the thrust disc; and a spring-loaded assembly integrated into the first and second thrust pads, the spring-loaded assembly connected to a pump outlet via a first flowline, the first flowline to transmit a working fluid from the pump outlet to the forward side of the thrust disc or the aft side of the thrust disc based on a position of the spring-loaded assembly.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: March 12, 2024
    Assignee: General Electric Company
    Inventors: Adam Joseph Wangler, David Raju Yamarthi, Ravindra Shankar Ganiger, Santosh Kumar Pattnaik
  • Patent number: 11927349
    Abstract: A deflector assembly for a combustor defining an operational fluid flow. The deflector assembly includes an upstream surface and a downstream surface opposite the upstream surface. One or more fastening mechanisms each extends through the deflector assembly. One or more cooling holes extend through the deflector assembly from the upstream surface to the downstream surface. The one or more cooling holes are located about the one or more fastening mechanisms to operably direct cooling air about the one or more fastening mechanisms at the downstream surface.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: March 12, 2024
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Vijayaraj Sukumar, Perumallu Vukanti, Pradeep Naik, Ajoy Patra, Karthikeyan Sampath, Rimple Rangrej, Hiranya Nath, Krishnendu Chakraborty, Narasimhan S. Sahana, Saket Singh, Ravindra Shankar Ganiger
  • Publication number: 20240076779
    Abstract: The present disclosure generally relates to methods and apparatuses for chemical vapor deposition (CVD) during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed chemical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 7, 2024
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Scott Alan Gold
  • Patent number: 11919233
    Abstract: Various embodiments provide a method of additively manufacturing a part including depositing a layer of a powder on a working surface, depositing a binder solution on the layer of the powder at first locations, and depositing a sintering aid solution on the layer of the powder at second locations. The sintering aid solution comprises a sintering aid in a solvent. In various embodiments, the sintering aid enables an increased brown strength as compared to parts containing unbound powder. The method enables binders that provide high green strength to be used at the edges of the part, while also balancing a shortened debind time with an increased brown strength. Embodiments in which binder solution is deposited according to a predetermined pattern at second locations are also described.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: March 5, 2024
    Assignee: General Electric Company
    Inventors: Mary Kathryn Thompson, Arunkumar Natarajan, Kwok Pong Chan, Vadim Bromberg, Xi Yang, Ananda Barua, William C. Alberts
  • Patent number: 11920789
    Abstract: A combustor assembly for a gas turbine engine includes an outer liner that at least partially defines a combustion chamber. The outer liner extends between an aft end and a forward end generally along an axial direction within an outer casing of the gas turbine engine. The outer liner includes an inner surface facing the combustion chamber and an outer surface facing away from the combustion chamber. The combustor assembly includes a radial damper assembly disposed against the outer liner at a plurality of circumferential points.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: March 5, 2024
    Assignee: General Electric Company
    Inventors: Mark Willard Marusko, Michael Alan Stieg, Brian Christopher Towle
  • Patent number: 11920521
    Abstract: Control schemes for controlling a gas turbine engine in response to disturbances associated with a load mechanically coupled with the gas turbine engine are provided. In one aspect, a gas turbine engine mechanically coupled with a load has a controller that includes executable control logic. The control logic includes a feedforward module, an aggressive control module, and a power turbine governor module. By executing the modules, the controller seeks to maintain a constant power turbine speed stably and subtly in response to small disturbances associated with the load and aggressively in response to large disturbances associated with the load, as well as smooth transitions between the responses.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: March 5, 2024
    Assignee: General Electric Company
    Inventors: Jessie Thorup, Christopher David King
  • Patent number: 11920230
    Abstract: Methods for processing an iron cobalt alloy, along with components formed therefrom, are provided. The method may include: pre-annealing a sheet of an iron cobalt alloy at a pre-anneal temperature (e.g., about 770° C. to about 805° C.); thereafter, cutting a component from the sheet; thereafter, heat-treat annealing the component at a treatment temperature (e.g., about 845° C. to about 870° C.) for a treatment period (e.g., about 1 minute to about 10 minutes); and thereafter, exposing the component to oxygen at an oxidizing temperature to form an insulation layer on a surface of the component.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: March 5, 2024
    Assignee: General Electric Company
    Inventors: Fabian Isaza, Pablo Gabriel Piazza Galarza
  • Patent number: 11920672
    Abstract: An air turbine starter that includes a housing with a divider structure dividing the housing into a wet chamber and an air chamber. The air turbine starter further including a bearing assembly, a turbine member, a first drive shaft, and a second drive shaft connecting the turbine member with a rotating assembly. A lubricant supply portion having at least one supply inlet fluidly coupled to the wet chamber and at least one supply outlet fluidly coupled to the bearing assembly whereby lubricant from the wet chamber can be supplied to the bearing assembly.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: March 5, 2024
    Assignees: Unison Industries, LLC, General Electric Company
    Inventors: Roberto Karpik, Eliel Fresco Rodriguez, David Allan Dranschak, Shiloh Montegomery Meyers, Marcin Bialas
  • Patent number: 11920493
    Abstract: An airfoil for a turbine engine, the airfoil having an outer wall defining an interior and a camber line extending through the airfoil, and at least one cell located within the interior. The at least one cell can include a forward portion and an aft portion with respect to the camber line. The forward portion and the aft portions can be connected by side portions. A braided fabric can be provided on at least one of the forward or aft portions, while a braided fiber can be provided on at least one of the side portions.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: March 5, 2024
    Assignee: General Electric Company
    Inventors: Douglas Lorrimer Armstrong, Devin R. Dilley, Elzbieta Kryj-Kos