Patents by Inventor Kurt David Murrow

Kurt David Murrow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10414508
    Abstract: In one aspect the present subject matter is directed to a gas-electric propulsion system for an aircraft. The system may include a turbofan jet engine, an electric powered boundary layer ingestion fan that is coupled to a fuselage portion of the aircraft aft of the turbofan jet engine, and an electric generator that is electronically coupled to the turbofan jet engine and to the boundary layer ingestion fan. The electric generator converts rotational energy from the turbofan jet engine to electrical energy and provides at least a portion of the electrical energy to the boundary layer ingestion fan. In another aspect of the present subject matter, a method for propelling an aircraft via the gas-electric propulsion system is disclosed.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: September 17, 2019
    Assignee: General Electric Company
    Inventors: Jeffrey Anthony Hamel, Kurt David Murrow
  • Patent number: 10392106
    Abstract: An aircraft includes a fuselage, a forward wing assembly, and aft wing assembly, and a propulsion system. The propulsion system includes a port forward propulsor and a starboard forward propulsor, each of which rotatable between a forward thrust position and a vertical thrust position and together defining a maximum forward thrust capability. The propulsion system also includes a port aft propulsor and a starboard aft propulsor, each of which also rotatable between a forward thrust position and a vertical thrust position, and together defining a maximum aft thrust capability. The maximum forward thrust capability is different than the maximum aft thrust capability to achieve certain efficiencies.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Randy M. Vondrell, Matthew Ryan Polakowski, Kurt David Murrow, Glenn Crabtree, Darek Tomasz Zatorski
  • Patent number: 10384773
    Abstract: An aircraft includes a fuselage and a wing assembly attached to or formed integrally with the fuselage. The aircraft also includes a propulsion system having a port propulsor and a starboard propulsor. The port and starboard propulsors are each attached to the wing assembly on opposing sides of the fuselage and are rotatable between a forward thrust position and a vertical thrust position. The propulsion system also includes a supplemental propulsor mounted to the fuselage to provide certain efficiencies for the aircraft.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 20, 2019
    Assignee: General Electric Company
    Inventors: Randy M. Vondrell, Matthew Ryan Polakowski, Kurt David Murrow, Glenn Crabtree, Darek Tomasz Zatorski
  • Patent number: 10384774
    Abstract: A method for operating a propulsion system of an aircraft includes moving a plurality of forward and aft propulsors to a vertical thrust position. While in the vertical thrust positions, the method also includes providing a first forward to aft ratio of electric power to the plurality of forward and aft propulsors. The method also includes moving the plurality of forward and aft propulsors to a forward thrust position. While in the forward thrust positions, the method also includes providing a second forward to aft ratio of electric power to the plurality of forward and aft propulsors. The first forward to aft ratio of electric power is different than the second forward to aft ratio of electric power to provide certain efficiencies for the aircraft.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 20, 2019
    Assignee: General Electric Company
    Inventors: Randy M. Vondrell, Matthew Ryan Polakowski, Kurt David Murrow, Glenn Crabtree, Darek Tomasz Zatorski
  • Patent number: 10381889
    Abstract: A permanent magnet machine and a rotor assembly for the permanent magnet machine. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the stator cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets are disposed within one or more cavities formed in a sleeve component. The sleeve component configured to include a plurality of cavities or voids therein and thus provide minimal weight to the permanent magnet machine. The permanent magnet machine providing increased centrifugal load capacity, increased power density and improved electrical performance.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 13, 2019
    Assignee: General Electric Company
    Inventors: Narendra Digamber Joshi, Manoj Ramprasad Shah, James William Bray, Randy Marinus Vondrell, Kurt David Murrow, Jeffrey Anthony Hamel, Samuel Jacob Martin
  • Patent number: 10358228
    Abstract: An aircraft is provided including a fuselage and an aft engine. The fuselage defines a top side, a bottom side, and a frustum located proximate an aft end of the aircraft. The frustum defines a top reference line extending along the frustum at a top side of the fuselage, and a bottom reference line extending along the frustum at a bottom side of the fuselage. The top and bottom reference lines meet at a reference point aft of the frustum. The fuselage further defines a recessed portion located aft of the frustum and indented inwardly from the bottom reference line. The aft engine includes a nacelle extending adjacent to the recessed portion of the fuselage such that the aft engine may be included with the aircraft without interfering with, e.g., a takeoff angle of the aircraft.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: July 23, 2019
    Assignee: General Electric Company
    Inventors: Patrick Michael Marrinan, Thomas Lee Becker, Kurt David Murrow, Jixian Yao
  • Publication number: 20190165708
    Abstract: A turbomachine and method for operating a turbomachine comprising a first rotatable component and a second rotatable component each defining a rotatable speed mechanically independent of one another, and an electric machine electrically coupled to the first rotatable component and the second rotatable component such that a load level relative to the first rotatable component and the second rotatable component is adjustable is generally provided.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Inventors: Justin Paul Smith, Kurt David Murrow, Darek Tomasz Zatorski, Patrick Michael Marrinan
  • Patent number: 10252797
    Abstract: An aircraft includes a fuselage, a forward wing assembly, and aft wing assembly, and a propulsion system. The propulsion system includes a first primary thrust propulsor and a first secondary thrust propulsor, the first primary thrust propulsor being different than the first secondary thrust propulsor. Both the first primary thrust propulsor and the first secondary thrust propulsor are mounted to the same one of: a starboard side of the aft wing assembly, a port side of the aft wing assembly, a starboard side of the forward wing assembly, or a port side of the forward wing assembly.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: April 9, 2019
    Assignee: General Electric Company
    Inventors: Randy M. Vondrell, Matthew Ryan Polakowski, Kurt David Murrow, Glenn Crabtree, Darek Tomasz Zatorski
  • Patent number: 10227928
    Abstract: A gas turbine engine comprises a fan, a compressor, a turbine having first stage blades and second stage blades, the first stage blades rotates in a first direction and the second stage blades rotates in a second direction opposite the first direction. The first stage blades are directly adjacent to one another, a drive in operable input connection with the fan and in operable output connection with the first stage blades and the second stage blades, the first stage blades and the second stage blades driving the fan through the drive.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: March 12, 2019
    Assignee: General Electric Company
    Inventors: Craig Miller Kuhne, Christopher Charles Glynn, Randy M. Vondrell, Andrew Breeze-Stringfellow, Kurt David Murrow, Darek T. Zatorski, Donald Scott Yeager, Nicholas Rowe Dinsmore, Samuel Jacob Martin, Donald Albert Bradley
  • Publication number: 20190061964
    Abstract: A method is provided for operating a propulsion system of a vertical takeoff and landing aircraft, the propulsion system including a turbomachine, an electric machine, a forward thrust propulsor, and a plurality of vertical thrust electric fans. The method includes driving the forward thrust propulsor with the turbomachine; rotating the electric machine with the turbomachine to generate electrical power; determining a failure condition of the turbomachine; and providing electrical power to the electric machine to drive the forward thrust propulsor with the electric machine in response to determining the failure condition of the turbomachine.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 28, 2019
    Inventor: Kurt David Murrow
  • Publication number: 20190047680
    Abstract: An aircraft includes a fuselage; a propulsion system including a power source and a plurality of vertical thrust electric fans driven by the power source; and a wing extending from the fuselage. The plurality of vertical thrust electric fans are arranged along a length of the wing, the wing including a variable geometry assembly extending along the length of the wing and moveable between a forward thrust position and a vertical thrust position, the variable geometry assembly at least partially covering the plurality of vertical thrust electric fans when in the forward thrust position and at least partially exposing the plurality of vertical thrust electric fans when in the vertical thrust position.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Kurt David Murrow, Andrew Breeze-Stringfellow, Darek Tomasz Zatorski, Dominic Barone
  • Publication number: 20190047718
    Abstract: An aircraft includes a fuselage; a propulsion system including a power source and a plurality of vertical thrust electric fans driven by the power source; and a wing extending from the fuselage. The plurality of vertical thrust electric fans are arranged along the wing, the wing including one or more components being moveable to selectively expose the plurality of vertical thrust electric fans, the wing further including a diffusion assembly positioned downstream of at least one vertical thrust electric fan of the plurality of vertical thrust electric fans, the diffusion assembly defining a diffusion area ratio greater than 1:1 and less than about 2:1.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Kurt David Murrow, Andrew Breeze-Stringfellow, Darek Tomasz Zatorski, Dominic Barone
  • Publication number: 20190047719
    Abstract: An aircraft includes a fuselage; a propulsion system including a power source and a vertical thrust propulsor driven by the power source; and a wing extending from the fuselage, the vertical thrust propulsor positioned on or at least partially within the wing, the wing including a diffusion assembly, the diffusion assembly including at least one diffusion member fixed in position and located downstream of the vertical thrust propulsor for diffusing an airflow from the vertical thrust propulsor.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Kurt David Murrow, Andrew Breeze-Stringfellow
  • Publication number: 20190047717
    Abstract: An aircraft includes a fuselage; a propulsion system including a power source and a vertical thrust electric fan oriented to generate thrust along a vertical direction and powered by the power source; and a wing extending from the fuselage and including the vertical thrust electric fan positioned at least partially therein. The wing includes a variable geometry assembly having partial wing assembly, the partial wing assembly including a frame and a first member, the partial wing assembly moveable generally along a longitudinal direction when the variable geometry assembly is moved between a forward thrust position and a vertical thrust position, the first member moveable relative to the frame to form an exhaust path for the vertical thrust electric fan.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Kurt David Murrow, Darek Tomasz Zatorski, Dominic Barone
  • Publication number: 20190047716
    Abstract: An aircraft includes a fuselage; a propulsion system including a power source and a vertical thrust electric fan driven by the power source; and a wing extending from the fuselage. The vertical thrust electric fan is positioned on or within the wing, the wing including a diffusion assembly movable between a first position and a second position and positioned at least partially downstream of the vertical thrust electric fan when in the second position, the diffusion assembly including a first member and a second member, the second member movable generally along the vertical direction relative to the first member such that the first member and second member together define at least in part an exhaust flowpath for the first vertical thrust electric fan when the diffusion assembly is in the second position.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Kurt David Murrow, Darek Tomasz Zatorski
  • Publication number: 20190047681
    Abstract: An aircraft includes a fuselage; a propulsion system including a power source and a plurality of vertical thrust electric fans driven by the power source; and a wing extending from the fuselage. The plurality of vertical thrust electric fans are arranged along a length of the wing, the wing including a variable geometry assembly moveable generally along a horizontal direction between a forward thrust position and a vertical thrust position, the variable geometry assembly at least partially covering at least one vertical thrust electric fan of the plurality of vertical thrust electric fans when in the forward thrust position and at least partially exposing the at least one vertical thrust electric fan when in the vertical thrust position.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Kurt David Murrow, Andrew Breeze-Stringfellow, Darek Tomasz Zatorski, Dominic Barone
  • Publication number: 20190023391
    Abstract: An aircraft defining a vertical direction and a transverse direction. The aircraft may include a fuselage, a wing extending from the fuselage, and a hybrid-electric propulsion system. The hybrid-electric propulsion system may include a power source, a plurality of vertical thrust electric fans arranged along the wing and driven by the power source, and a forward thrust propulsor. The power source may include a combustion engine and an electric generator. The combustion engine may also define a flowpath for exhausting combustion gases. The forward thrust propulsor may be selectively or permanently mechanically coupled to the combustion engine. The forward thrust propulsor may include a propulsor fan having a plurality of fan blades arranged outside of the flowpath of the combustion engine for exhausting combustion gases.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 24, 2019
    Inventor: Kurt David Murrow
  • Publication number: 20190023389
    Abstract: An aircraft includes a fuselage; a wing coupled to, and extending from, the fuselage; and a propulsion system. The propulsion system includes a plurality of electric fans integrated into the wing and oriented to generate thrust along a vertical direction, the plurality of electric fans arranged along a length of the wing and including an outer-most electric fan along a transverse direction relative to the fuselage. The outer-most electric fan is at least one of a variable pitch fan or a variable speed fan to provide increased stability to the aircraft.
    Type: Application
    Filed: September 8, 2017
    Publication date: January 24, 2019
    Inventors: Kurt David Murrow, Darek Tomasz Zatorski, Andrew Breeze-Stringfellow, Dominic Barone
  • Publication number: 20190023390
    Abstract: A method for operating a vertical takeoff and landing aircraft includes modifying a first variable component of a wing associated with a first portion of the plurality of vertical thrust electric fans relative to a second variable component of the wing associated with a second portion of the plurality of vertical thrust electric fans to adjust an exposure ratio of the first portion of the plurality of vertical thrust electric fans relative to the second portion of the plurality of vertical thrust electric fans.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 24, 2019
    Inventors: Kurt David Murrow, Andrew Breeze-Stringfellow, Darek Tomasz Zatorski, Dominic Barone
  • Publication number: 20190023408
    Abstract: An aircraft includes a fuselage; a wing coupled to, and extending from, the fuselage; and a hybrid-electric propulsion system. The hybrid-electric propulsion system includes a power source including a combustion engine and an electric generator; a plurality of vertical thrust electric fans integrated into the wing and oriented to generate thrust along the vertical direction, the plurality of vertical thrust electric fans arranged along a length of the wing and driven by the power source; and a forward thrust propulsor. The forward thrust propulsor it is selectively or permanently mechanically coupled to the combustion engine.
    Type: Application
    Filed: September 8, 2017
    Publication date: January 24, 2019
    Inventors: Kurt David Murrow, Darek Tomasz Zatorksi, Andrew Breeze-Stringfellow, Randy M. Vondrell, Dominic Barone