Patents by Inventor Gert Johannes van der Merwe

Gert Johannes van der Merwe 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: 11118535
    Abstract: A thrust balancing gear assembly for a turbo machine is provided. The gear assembly includes an input gear connected to an input drive shaft, an output gear connected to an output drive shaft, and a compound planet gear including a first planet gear and a second planet gear each connected to one another and positioned in axially adjacent arrangement. The first planet gear is connected to the input gear at a first interface and the second planet gear is connected to the output gear at a second interface.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: September 14, 2021
    Assignee: General Electric Company
    Inventors: Gert Johannes van der Merwe, Raymond Floyd Martell
  • Patent number: 11008883
    Abstract: A turbomachine includes a turbine section including a turbine. The turbine includes a first plurality of turbine rotor blades and a second plurality of turbine rotor blades, the first plurality of turbine rotor blades and second plurality of turbine rotor blades alternatingly spaced along the axial direction. The turbomachine also includes a gearbox. The first plurality of turbine rotor blades and the second plurality of turbine rotor blades are each coupled to one of a ring gear, a planet gear, or a sun gear of the gearbox such that the first plurality of turbine rotor blades is rotatable with the second plurality of turbine rotor blades through the gearbox. The turbomachine also includes an electric machine assembly including a rotor coupled to one of the ring gear, the planet gear, or the sun gear of the gearbox such that the rotor rotates relative to a stator during operation.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: May 18, 2021
    Assignee: General Electric Company
    Inventors: Darek Tomasz Zatorski, Gert Johannes van der Merwe, Brandon Wayne Miller, Daniel Alan Niergarth
  • Publication number: 20210108597
    Abstract: A propulsion system, the propulsion system comprising a rotating element, a stationary element, and an inlet between the rotating element and the stationary element, wherein the inlet passes radially inward of the stationary element; wherein the inlet passes radially inward of the stationary element; wherein the inlet leads to an inlet duct containing a ducted fan having an axis of rotation and a plurality of blades; and wherein the inlet duct divides into a first duct and a second duct, separate from the first duct. A method of operating a propulsion system, comprising the steps of: operating a first rotating fan assembly to produce a first stream of air; directing a portion of the first stream of air into a second ducted rotating fan assembly; operating the second ducted rotating fan assembly to produce a second stream of air; dividing the second stream of air into a core stream and a fan stream; and directing the core stream into a gas turbine engine core.
    Type: Application
    Filed: March 6, 2020
    Publication date: April 15, 2021
    Inventors: David Marion Ostdiek, Alan Roy Stuart, Daniel Alan Niergarth, Gert Johannes van der Merwe, Brandon Wayne Miller, Stephen William Freund
  • Patent number: 10961850
    Abstract: A gas turbine engine including a torque frame is provided. The torque frame includes an inner shroud defined circumferentially around the axial centerline, an outer shroud surrounding the inner shroud and defined circumferentially around the axial centerline, and a structural member extended along the radial direction and coupled to the inner shroud and the outer shroud. The torque frame is configured to rotate around the axial centerline.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 30, 2021
    Assignee: General Electric Company
    Inventors: Gert Johannes van der Merwe, Darek Tomasz Zatorski, Richard Alan Wesling, Jeffrey Donald Clements
  • Patent number: 10851712
    Abstract: A clearance control system includes one or more clearance control devices that include features for controlling the clearances between rotating and stationary components of an engine. In one exemplary aspect, a clearance control device utilizes a fluid to pressurize an actuation chamber defined by a compliant member of the clearance control device. The pressurization of the actuation chamber causes the actuation chamber to expand in a direction that changes the clearance between the stationary and rotating components of the engine.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 1, 2020
    Assignee: General Electric Company
    Inventors: Gert Johannes van der Merwe, Joel Francis Kirk
  • Publication number: 20200284223
    Abstract: A thrust balancing gear assembly for a turbo machine is provided. The gear assembly includes an input gear connected to an input drive shaft, an output gear connected to an output drive shaft, and a compound planet gear including a first planet gear and a second planet gear each connected to one another and positioned in axially adjacent arrangement. The first planet gear is connected to the input gear at a first interface and the second planet gear is connected to the output gear at a second interface.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 10, 2020
    Inventors: Gert Johannes van der Merwe, Raymond Floyd Martell
  • Patent number: 10753455
    Abstract: A gearbox and a method for additively manufacturing the gearbox are provided. The gearbox includes a housing having an integral heat exchanger additively manufactured within the housing. The heat exchanger includes a plurality of heat exchange passageways for transferring heat between two or more fluids. The heat exchanger is defined at any suitable location or locations within the housing, for example, within voids defined between the walls of the housing and components housed within housing, such as driveshafts, gears, bearings, etc.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: August 25, 2020
    Assignee: General Electric Company
    Inventors: Gert Johannes van der Merwe, Raymond Floyd Martell
  • Patent number: 10746047
    Abstract: A gas turbine engine including a first rotor assembly is generally provided. The first rotor assembly includes outer drum and an outer drum airfoil. The outer drum airfoil is coupled to the outer drum and extended inward along a radial direction. A damper structure is coupled to one or more of the outer drum or the outer drum airfoil.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: August 18, 2020
    Assignee: General Electric Company
    Inventors: Richard Alan Wesling, Darek Tomasz Zatorski, Gert Johannes van der Merwe
  • Patent number: 10711629
    Abstract: The present disclosure is directed to a method of operating an active clearance control system for an interdigitated turbine engine. The method includes flowing air from a compressor section to a rotatable outer shroud of an interdigitated turbine section; and adjusting the flow of air to the outer shroud based at least on an engine condition of the turbine engine. The present disclosure is further directed to a gas turbine engine including a low speed turbine rotor comprising an inner shroud, an outer shroud, and at least one connecting airfoil coupling the inner shroud and the outer shroud. The outer shroud includes a plurality of outer shroud airfoils extended inward along a radial direction. The engine further includes a turbine frame at least partially surrounding the low speed turbine rotor; a seal assembly disposed between the outer shroud of the low speed turbine rotor and the turbine frame; and a fifth manifold coupled to the turbine frame.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: July 14, 2020
    Assignee: Generl Electric Company
    Inventors: Gert Johannes van der Merwe, Darek Tomasz Zatorski
  • Publication number: 20200062412
    Abstract: A turbine engine assembly includes: a fan assembly; a turbine coupled to the fan assembly through a gearbox; a stationary component; and an assembly extending between the gearbox and the stationary component to couple the gearbox to the stationary component, wherein the assembly includes at least one vibration-reducing mechanism configured to isolate a vibratory response of the gearbox from the stationary component.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Gert Johannes VAN DER MERWE, Charles Stanley ORKISZEWSKI
  • Patent number: 10544793
    Abstract: The present disclosure is directed to a gas turbine engine defining a radial direction, a circumferential direction, an axial centerline along a longitudinal direction, and wherein the gas turbine engine defines an upstream end and a downstream end along the longitudinal direction. The gas turbine engine includes a first turbine rotor comprising an inner shroud, an outer shroud outward of the inner shroud in the radial direction, at least one connecting airfoil coupling the inner shroud and the outer shroud at least partially along the radial direction, and an outer band outward of the outer shroud in the radial direction and extended at least partially in the circumferential direction, and a plurality of connecting members couples the outer shroud and the outer band.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: January 28, 2020
    Assignee: General Electric Company
    Inventors: Darek Tomasz Zatorski, Brandon Wayne Miller, Richard Wesling, Gert Johannes van der Merwe
  • Patent number: 10518891
    Abstract: A turbine engine assembly is provided. The assembly includes a stationary component, a drive shaft, and a gearbox coupled along the drive shaft, and coupled to the stationary component. The assembly also includes a vibration-reducing mechanism coupled between the stationary component and the gearbox. The vibration-reducing mechanism is configured to isolate a vibratory response of the gearbox from the stationary component.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: December 31, 2019
    Assignee: General Electric Company
    Inventors: Gert Johannes Van Der Merwe, Charles Stanley Orkiszewski
  • Publication number: 20190186598
    Abstract: A planet gear includes an annular planet gear rim having a constant inner radius along a complete axial length and an outer radius defined as the radial distance to the root of the gear teeth. The annular planet gear rim further has an average rim radius defined at a halfway point between the constant inner radius and the outer radius. The average rim radius and the rim thickness define a ratio including values in a range from and including about 4 to and including about 9. A gear assembly and turbomachine including the planet gear are disclosed.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Inventors: Kennneth Lee Fisher, Darren Lee Hallman, Bugra Han Ertas, Donald Albert Bradley, Haris Ligata, William Howard Hasting, Ning Fang, Gert Johannes van der Merwe, Mark Alan Rhoads
  • Publication number: 20190170239
    Abstract: A gearbox and a method for additively manufacturing the gearbox are provided. The gearbox includes a housing having an integral heat exchanger additively manufactured within the housing. The heat exchanger includes a plurality of heat exchange passageways for transferring heat between two or more fluids. The heat exchanger is defined at any suitable location or locations within the housing, for example, within voids defined between the walls of the housing and components housed within housing, such as driveshafts, gears, bearings, etc.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Inventors: Gert Johannes van der Merwe, Raymond Floyd Martell
  • Patent number: 10294821
    Abstract: The present disclosure is directed to a gas turbine engine defining a radial direction, a circumferential direction, an axial centerline along a longitudinal direction, and wherein the gas turbine engine defines an upstream end and a downstream end along the longitudinal direction, and wherein the gas turbine engine defines a core flowpath extended generally along the longitudinal direction. The gas turbine engine includes a turbine frame defined around the axial centerline, the turbine frame comprising a first bearing surface disposed inward along the radial direction. The gas turbine engine further includes a turbine rotor assembly including a bearing assembly coupled to the first bearing surface of the turbine frame and the turbine rotor assembly. The turbine rotor assembly further includes a first turbine rotor disposed upstream of the turbine frame and a second turbine rotor disposed downstream of the turbine frame.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 21, 2019
    Assignee: General Electric Company
    Inventors: Thomas Ory Moniz, Alan Roy Stuart, Jeffrey Donald Clements, Brandon Wayne Miller, Darek Tomasz Zatorski, Gert Johannes van der Merwe, Joel Francis Kirk, Richard Wesling
  • Patent number: 10288163
    Abstract: A static lubricant supply system within a gearbox that delivers lubricant to rotating gears. The lubricant supply system includes a stationary sleeve assembly for delivering the lubricant to a rotating receiver member, shaft, or flange. The sleeve assembly includes bearings, seals, jets, and plenums. The jets are skewed to deliver lubricant in the tangential direction of rotational motion of the receiver member, shaft, or flange. In the radial gap transfer configuration, the sleeve assembly circumscribes the receiver member or shaft. A race in the receiver member or shaft receives the lubricant. Channels within the receiver member, shaft, and gears deliver lubricant to the gears. In the axial gap transfer configuration, the sleeve assembly transfers lubricant to a flange attached to a receiver member. The flange has a race that receives the lubricant from the jets. Channels within the flange, receiver member, and gears deliver lubricant to the gears.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: May 14, 2019
    Assignee: General Electric Company
    Inventors: Brandon Wayne Miller, Gert Johannes van der Merwe, Donald Albert Bradley, Michael Anthony Barnell, Christopher James Kroger
  • Publication number: 20190128137
    Abstract: A gas turbine engine including a first rotor assembly is generally provided. The first rotor assembly includes outer drum and an outer drum airfoil. The outer drum airfoil is coupled to the outer drum and extended inward along a radial direction. A damper structure is coupled to one or more of the outer drum or the outer drum airfoil.
    Type: Application
    Filed: October 27, 2017
    Publication date: May 2, 2019
    Inventors: Richard Alan Wesling, Darek Tomasz Zatorski, Gert Johannes van der Merwe
  • Patent number: 10247296
    Abstract: A gearbox and a method for additively manufacturing the gearbox are provided. The gearbox includes a housing having an integral heat exchanger additively manufactured within the housing. The heat exchanger includes a plurality of heat exchange passageways for transferring heat between two or more fluids. The heat exchanger is defined at any suitable location or locations within the housing, for example, within voids defined between the walls of the housing and components housed within housing, such as driveshafts, gears, bearings, etc.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 2, 2019
    Assignee: General Electric Company
    Inventors: Gert Johannes van der Merwe, Raymond Floyd Martell
  • Publication number: 20190085715
    Abstract: An engine assembly includes an engine including a component and defining an opening and an interior, the component including a first side and an opposite second side, the second side positioned within the interior of the engine. The engine assembly also includes an inspection tool having a first member including at least one of a receiver or a transmitter and directed at the first side of the component. The inspection tool also includes a second member including the other of the receiver or the transmitter and positioned at least partially within the interior of the engine and directed at the second side of the component to communicate a signal with the first member through the component, the second member being a robotic arm extending through the opening of the engine.
    Type: Application
    Filed: July 26, 2018
    Publication date: March 21, 2019
    Inventors: Gert Johannes van der Merwe, Darek Tomasz Zatorski
  • Publication number: 20190085698
    Abstract: The present disclosure is directed to a gas turbine engine including a torque frame. The torque frame includes an inner shroud defined circumferentially around the axial centerline, an outer shroud surrounding the inner shroud and defined circumferentially around the axial centerline, and a structural member extended along the radial direction and coupled to the inner shroud and the outer shroud. The torque frame is configured to rotate around the axial centerline.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 21, 2019
    Inventors: Gert Johannes van der Merwe, Darek Tomasz Zatorski, Richard Alan Wesling, Jeffrey Donald Clements