Patents by Inventor Bugra Han Ertas

Bugra Han Ertas 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).

  • Publication number: 20210156256
    Abstract: A damper seal for a turbomachine includes an annular body having an inner circumferential surface and an outer circumferential surface separated by a thickness. As such, the inner circumferential surface may define a plurality of cavities arranged into a plurality of circumferential rows and at least one partition positioned between at least two of the plurality of cavities. In addition, the inner circumferential surface may further define at least one plenum arranged between two of the plurality of circumferential rows.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Inventors: Peeyush Pankaj, Narayanan Payyoor, Richard Schmidt, Bugra Han Ertas
  • Publication number: 20210131429
    Abstract: A system may be provided that may include a first working fluid compressor configured to pressurize a working fluid, and a prime mover coupled to the first working fluid compressor and configured to provide a mechanical input into the first working fluid compressor. An exhaust assembly may be coupled to the prime mover and configured to receive exhaust heat from the prime mover, the exhaust assembly including a generator configured to generate electric current based on the exhaust heat received by the exhaust assembly. A second working fluid compressor may include an electric motor electrically and synchronously coupled to the generator and configured to pressurize the working fluid.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 6, 2021
    Inventors: David Allan Torrey, Douglas C. Hofer, Bugra Han Ertas
  • Patent number: 10982713
    Abstract: Heat engines employing fluid bearing assemblies hermetically sealed with a closed flowpath for a working fluid are generally disclosed. For example, the heat engine includes a rotating drivetrain and a fluid bearing assembly. The rotating drivetrain includes a compressor section, an expander section, and a heat exchanger. The compressor section and expander section together define at least in part a closed flowpath for the flow of a working fluid. The heat exchanger is thermally coupled to the closed flowpath for adding heat to the working fluid. The fluid bearing assembly is configured to utilize the working fluid to support the rotating drivetrain. Further, the fluid bearing assembly is hermetically sealed with the closed flowpath.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 20, 2021
    Assignee: General Electric Company
    Inventors: Bugra Han Ertas, Douglas Carl Hofer
  • Patent number: 10914195
    Abstract: A rotary machine for an aeronautical device includes a thrust generator. The rotary machine additionally includes a rotary component rotatable with the thrust generator. Moreover, the rotary machine of the present disclosure includes a plurality of gas bearings, with the plurality of gas bearings substantially completely supporting the rotary component of the rotary machine.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: February 9, 2021
    Assignee: General Electric Company
    Inventors: Joshua Tyler Mook, Bugra Han Ertas
  • Publication number: 20210013759
    Abstract: A powered system that has an electric power system with a stator having plural poles with each pole having a conductive winding that may surround the corresponding pole and may be configured to generate a magnetic field, and a rotor that may be configured to rotate in response to the magnetic field generated by the stator. The at least one of the conductive windings may be insulated with an insulation material configured to conduct heat from the at least one conductive winding while operating at a temperature above 600° C.
    Type: Application
    Filed: October 9, 2019
    Publication date: January 14, 2021
    Inventors: David Allan Torrey, Anil R. Duggal, Bugra Han Ertas, William D. Gerstler, Jie Jerry Liu, Weijun Yin
  • Publication number: 20210003034
    Abstract: A bearing system including a frequency independent damper assembly and a bearing pad assembly. The damper assembly includes a housing, a plunger, a moving central post and a support spring. The plunger is movable within a housing to define a first primary damper cavity and a second primary damper cavity. The moving central post has defined therein a fluid channel for a pressurized working fluid flow. The support spring includes a plurality of flexible elements coupled to the housing and disposed radially outward of the first and second primary damper cavities. The support spring defines first and second accumulator cavity. A flow-through channel couples the first accumulator cavity to the second accumulator cavity. In an embodiment, the flow-through channel may be disposed within the moving central post. The bearing pad assembly includes a bearing pad including a plurality of bearing pad orifices coupled to the fluid channel in the moving central post.
    Type: Application
    Filed: July 6, 2019
    Publication date: January 7, 2021
    Inventor: Bugra Han Ertas
  • Patent number: 10816078
    Abstract: A planet gear train for an engine casing includes a sun gear rotatable by a shaft, a ring gear, a plurality of planet gears rotatably mounted in a planet carrier and meshing with the sun gear and the ring gear, and a damping system. The damping system includes a soft mount disposed about the shaft and coupling the planet carrier the engine casing. The soft mount includes a flexible inner sleeve and a flexible outer sleeve. The flexible inner sleeve and the flexible outer sleeve are fixedly coupled together at respective central portions thereof near the shaft. The damping system further includes a plurality of damping couplers disposed about an outer flange of the planet carrier. The plurality of damping couplers is configured to flexibly couple the flexible inner sleeve to the flexible outer sleeve.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventors: Brandon Wayne Miller, Randy M. Vondrell, Donald Albert Bradley, Bugra Han Ertas
  • Patent number: 10816035
    Abstract: Embodiments of a damper assembly are disclosed. In some embodiments, the damper assembly includes a damper housing, a damper plunger and a support spring. The damper plunger is disposed at least partially within the housing and movable within to define a first primary damper cavity and a second primary damper cavity. A damper cavity restrictive clearance is defined between the first primary damper cavity and the second primary damper cavity. The damper cavity restrictive clearance includes an elliptical damper orifice having a major-axis and a minor-axis at a mid-plane of the damper cavity restrictive clearance and is oriented perpendicular to a direction of a vibrational force imposed on the damper assembly.
    Type: Grant
    Filed: July 6, 2019
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventor: Bugra Han Ertas
  • Patent number: 10815831
    Abstract: Embodiments of a frequency independent damper assembly are disclosed. In some embodiments, the damper assembly includes a damper housing, a damper plunger and a support spring. The damper plunger is disposed at least partially within the housing and movable within to define a first primary damper cavity and a second primary damper cavity. The support spring includes a plurality of flexible elements coupled to the damper housing and disposed radially outward of the first primary damper cavity and the second primary damper cavity. The support spring defines a first accumulator cavity and a second accumulator cavity. A flow-through channel couples the first accumulator cavity to the second accumulator cavity. A gas bearing including the frequency independent damper assembly is disclosed.
    Type: Grant
    Filed: July 6, 2019
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventor: Bugra Han Ertas
  • Patent number: 10801549
    Abstract: An axial load management system for a turbomachine including a rotating drivetrain, a thrust bearing assembly, a sensor, and a valve supply line. The rotating drivetrain includes a compressor section and an expander section fluidly coupled together by a closed flowpath. The thrust bearing assembly includes a thrust runner, a thrust bearing housing, and a gas thrust bearing extending between the thrust runner and the thrust bearing housing. Further, the gas thrust bearing supports the rotating drivetrain. The sensor is attached to at least one of the thrust bearing housing or the gas thrust bearing. The valve supply line is fluidly coupled to the closed flowpath. A valve positioned within the valve supply line selectively allows a working fluid to flow between the closed flowpath and a thrust chamber defined by a rotating surface and a fixed surface to modify an axial load on the rotating drivetrain.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 13, 2020
    Assignee: General Electric Company
    Inventors: Bugra Han Ertas, Douglas Carl Hofer, Younkoo Jeong
  • Patent number: 10711877
    Abstract: A gearbox assembly for a gas turbine engine used in an aircraft having passive lubrication capabilities during wind milling includes a gearbox housing, a gear train assembly housed within the gearbox housing, a lubricant in the gearbox housing for lubricating the gear train assembly, and a first scavenge port formed in the gearbox housing. The first scavenge port is changeable between an open position and a closed position. Further, the first scavenge port remains in the open position during normal operation of the gas turbine engine to allow the lubricant to drain from the gearbox housing. Upon occurrence of a loss of lubricant pressure in the gearbox assembly, the first scavenge port is changed to the closed position to trap at least a portion of the lubricant in the gearbox housing. Thus, the trapped lubricant provides passive lubrication to the gear train assembly during the loss of lubricant pressure.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 14, 2020
    Assignee: General Electric Company
    Inventors: Kenneth Lee Fisher, George Hanna Ghanime, Bugra Han Ertas, Darren Lee Hallman
  • Patent number: 10704600
    Abstract: A bearing includes a bearing pad for supporting a rotary component and a housing attached to or formed integrally with the bearing pad. The housing includes a flexible column extending towards the bearing pad for providing the bearing pad with an airflow. The column supports the bearing pad from a location inward of an outer periphery of the bearing pad along an axial direction of the bearing. With such a configuration, a resistance of the bearing pad along a radial direction of the bearing is less at the outer periphery than a resistance of the bearing pad along the radial direction proximate the column.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: July 7, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Joshua Tyler Mook, Bugra Han Ertas, Jason Joseph Bellardi
  • Publication number: 20200191016
    Abstract: Embodiments of a frequency independent damper assembly are disclosed. In some embodiments, the damper assembly includes a damper housing, a damper plunger and a support spring. The damper plunger is disposed at least partially within the housing and movable within to define a first primary damper cavity and a second primary damper cavity. The support spring includes a plurality of flexible elements coupled to the damper housing and disposed radially outward of the first primary damper cavity and the second primary damper cavity. The support spring defines a first accumulator volume and a second accumulator volume. A flow-through channel couple the first accumulator volume to the second accumulator volume. A gas bearing including the frequency independent damper assembly is disclosed.
    Type: Application
    Filed: July 6, 2019
    Publication date: June 18, 2020
    Inventor: Bugra Han Ertas
  • Publication number: 20200191200
    Abstract: Embodiments of a damper assembly are disclosed. In some embodiments, the damper assembly includes a damper housing, a damper plunger and a support spring. The damper plunger is disposed at least partially within the housing and movable within to define a first primary damper cavity and a second primary damper cavity. A damper cavity restrictive clearance is defined between the first primary damper cavity and the second primary damper cavity. The damper cavity restrictive clearance includes an elliptical damper orifice having a major-axis and a minor-axis at a mid-plane of the damper cavity restrictive clearance and is oriented perpendicular to a direction of a vibrational force imposed on the damper assembly.
    Type: Application
    Filed: July 6, 2019
    Publication date: June 18, 2020
    Inventor: Bugra Han Ertas
  • Patent number: 10641332
    Abstract: A bearing includes an inner ring having an outer surface and a cage having both an inner surface and an outer surface. The cage inner surface is positioned to be in opposition to the inner ring outer surface. The bearing further includes an outer ring having both an inner surface and an outer surface. The outer ring inner surface is positioned to be in opposition to the cage outer surface. One or more of the inner ring outer surface, the cage inner surface, the cage outer surface, and the outer ring inner surface defines a non-circular circumferential profile.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 5, 2020
    Assignee: General Electric Company
    Inventors: Fabio Nonato de Paula, Bugra Han Ertas, Darren Lee Hallman
  • Patent number: 10598159
    Abstract: In one aspect, a dual pitch bearing configuration for coupling a rotor blade to a hub of a wind turbine. The dual pitch bearing configuration including a first pitch bearing and at least one additional pitch bearing disposed axially a distance LB from the first pitch bearing. The dual pitch bearing configuration further including one or more spacers disposed between the first pitch bearing and the at least one additional pitch bearing and extending the distance LB. The dual pitch bearing disposed radially within one of a blade root of the rotor blade, a hub extension or a bearing housing and coupled thereto. The dual pitch bearing configuration minimizing moment loading on the first pitch bearing and the at least one additional pitch bearing. A wind turbine including the dual pitch bearing configuration is further disclosed.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: March 24, 2020
    Assignee: General Electric Company
    Inventors: Adam Daniel Minadeo, Norman Arnold Turnquist, Daniel Jason Erno, Fulton Jose Lopez, Bugra Han Ertas, Michael Colan Moscinski
  • Patent number: 10577975
    Abstract: Embodiments of a stage for a turbomachine have been provided herein. In some embodiments, a stage for a turbomachine may include a bearing having a housing, the bearing defining an interior cavity; an outer ring disposed radially outward from the housing; and a plurality of airfoils disposed between the housing of the bearing and the outer ring.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: March 3, 2020
    Assignee: General Electric Company
    Inventors: Bugra Han Ertas, Jason Joseph Bellardi, Joshua Tyler Mook
  • Publication number: 20200056677
    Abstract: A damping device that includes features for damping bending vibration of a shaft rotating about its axis of rotation and methods for damping bending vibration utilizing the damping device are provided. In one exemplary aspect, the damping device includes a damping disc operatively coupled with a shaft, e.g., of a turbine engine or shaft system. The damping disc is at least partially received within a chamber defined by a housing. The chamber of the housing is configured to receive a damping fluid. When the shaft is rotated about its axis of rotation, the damping disc is movable within the chamber to move the damping fluid such that the damping fluid absorbs bending vibration emitted by the shaft. The damping fluid moved by the damping disc dampens bending vibration emitted by the shaft.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 20, 2020
    Inventors: Richard Schmidt, Bugra Han Ertas, Weize Kang
  • Patent number: 10508731
    Abstract: A planet gear includes a pin and an annular planet gear rim. The pin has a pin radius. The pin includes a pin outer surface. The annular planet gear rim has an inner radius and an outer radius. The annular planet gear rim includes an inner surface and an outer surface. The inner surface and the pin outer surface define a clearance therebetween. The clearance is greater than 0 when a radial force is applied to the planet gear.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: December 17, 2019
    Assignee: General Electric Company
    Inventors: Darren Lee Hallman, Donald Albert Bradley, Changjie Sun, Bugra Han Ertas
  • Publication number: 20190368549
    Abstract: An axial load management system for a turbomachine including a rotating drivetrain, a thrust bearing assembly, a sensor, and a valve supply line. The rotating drivetrain includes a compressor section and an expander section fluidly coupled together by a closed flowpath. The thrust bearing assembly includes a thrust runner, a thrust bearing housing, and a gas thrust bearing extending between the thrust runner and the thrust bearing housing. Further, the gas thrust bearing supports the rotating drivetrain. The sensor is attached to at least one of the thrust bearing housing or the gas thrust bearing. The valve supply line is fluidly coupled to the closed flowpath. A valve positioned within the valve supply line selectively allows a working fluid to flow between the closed flowpath and a thrust chamber defined by a rotating surface and a fixed surface to modify an axial load on the rotating drivetrain.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 5, 2019
    Inventors: Bugra Han Ertas, Douglas Carl Hofer, Younkoo Jeong