公开(公告)号：US11940032B2

公开(公告)日：2024-03-26

申请号：US16103314

申请日：2018-08-14

Applicant: General Electric Company

Inventor： Richard Schmidt ,  Bugra Han Ertas ,  Weize Kang

IPC: F16F15/16 ,  F01D25/16

CPC classification number: F16F15/16 ,  F01D25/164 ,  F16C2360/23

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.

公开(公告)号：US20230349329A1

公开(公告)日：2023-11-02

申请号：US18315075

申请日：2023-05-10

Applicant: General Electric Company

Inventor： Eyitayo James Owoeye ,  Lana Maria Osusky ,  Bugra Han Ertas

IPC: F02C7/12 ,  F02C7/36

CPC classification number: F02C7/12 ,  F02C7/36 ,  F05D2260/20 ,  F05D2260/4031

Abstract: A turbofan engine having one or more heat exchangers tied to a power gearbox is provided. The power gearbox mechanically couples a low pressure spool and a fan of the turbofan engine. The one or more heat exchangers have a heat exchanger capacity defined by a resultant heat transfer surface area density associated with the one or more heat exchangers multiplied by a heat conductance factor that relates a power gearbox heat load, a fan power consumption function, a fan diameter of the fan, and a bypass ratio of the turbofan engine. The heat exchanger capacity is between 0.77 and 298.17 for a rotational speed of the low pressure spool between 2,000 and 16,000 revolutions per minute at one hundred percent capacity and a resultant heat transfer surface area density being between 3,000 m2/m3 and 13,000 m2/m3.

公开(公告)号：US20220098985A1

公开(公告)日：2022-03-31

申请号：US17038540

申请日：2020-09-30

Applicant: General Electric Company

Inventor： Suryarghya Chakrabarti ,  Bugra Han Ertas

IPC: F01D5/16 ,  F16F15/173 ,  F02C3/04

Abstract: A vibrational dampening element is attached to a component and configured to adjust the amplitude of oscillations of the component. The vibrational dampening element includes a mass. The mass includes a main body and a member extending from the main body. A casing that encapsulates the mass. A fluidic chamber defined between the mass and the casing. A first fluidic portion is disposed between a first side of the mass and the casing. The first fluidic portion includes a first accumulator portion directly neighboring the member. A second fluidic portion is disposed between a second side of the mass and the casing. The second fluidic portion includes a second accumulator portion directly neighboring the member. The first accumulator portion is in fluid communication with the second accumulator portion. The vibrational dampening element further includes a primary passage that extends between the first fluidic portion and the second fluidic portion.

公开(公告)号：US10914195B2

公开(公告)日：2021-02-09

申请号：US15131164

申请日：2016-04-18

Applicant: General Electric Company

Inventor： Joshua Tyler Mook ,  Bugra Han Ertas

IPC: F01D25/22 ,  F16C32/06 ,  F01D5/02 ,  F01D25/16 ,  F04D29/32 ,  F04D29/057 ,  F04D29/051

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.

公开(公告)号：US20210003034A1

公开(公告)日：2021-01-07

申请号：US16504242

申请日：2019-07-06

Applicant: General Electric Company

Inventor： Bugra Han Ertas

IPC: F01D25/22 ,  F16F13/00 ,  F16F15/02 ,  F16F15/023 ,  F02C7/06

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.

公开(公告)号：US10815831B2

公开(公告)日：2020-10-27

申请号：US16504240

申请日：2019-07-06

Applicant: General Electric Company

Inventor： Bugra Han Ertas

IPC: F01D25/16 ,  F16F15/023 ,  F16C32/06

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.

公开(公告)号：US10801549B2

公开(公告)日：2020-10-13

申请号：US15993819

申请日：2018-05-31

Applicant: General Electric Company

Inventor： Bugra Han Ertas ,  Douglas Carl Hofer ,  Younkoo Jeong

IPC: F16C39/04 ,  F16C17/04 ,  F16C32/06 ,  F01D3/00 ,  F01D25/16 ,  F01D25/22 ,  F01D17/08 ,  G01L5/00

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.

公开(公告)号：US10704600B2

公开(公告)日：2020-07-07

申请号：US15924804

申请日：2018-03-19

Applicant: General Electric Company

Inventor： Joshua Tyler Mook ,  Bugra Han Ertas ,  Jason Joseph Bellardi

IPC: F16C33/10 ,  F16C17/02 ,  F01D25/16 ,  F16C32/06 ,  F16C33/04 ,  F16F15/00 ,  F16C17/03 ,  F16C43/02 ,  F16F15/023 ,  F16C27/02

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.

公开(公告)号：US20190368549A1

公开(公告)日：2019-12-05

申请号：US15993819

申请日：2018-05-31

Applicant: General Electric Company

Inventor： Bugra Han Ertas ,  Douglas Carl Hofer ,  Younkoo Jeong

IPC: F16C39/04 ,  F01D3/00 ,  F01D25/22 ,  F01D25/16

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.

公开(公告)号：US10247017B2

公开(公告)日：2019-04-02

申请号：US15197254

申请日：2016-06-29

Applicant: General Electric Company

Inventor： Brandon Wayne Miller ,  Thomas Lee Becker ,  Daniel Alan Niergarth ,  Bugra Han Ertas

IPC: F01D1/00 ,  F01D9/04 ,  F16C32/06 ,  F01D25/16 ,  F02C3/04 ,  F02C7/18 ,  F16C27/02

Abstract: A system includes a gas delivery disk coupled to a second shaft, wherein the second shaft and the gas delivery disk are disposed about an axis. The gas delivery disk includes an inner axial opening configured to facilitate a first axial flow through a first passage within the second shaft, a duct configured to supply a bearing flow in a radial direction toward the axis, and a bearing face disposed within the first passage and radially interior to the inner axial opening. The bearing face is configured to receive the bearing flow, and the bearing face is configured to form a gas bearing between the bearing face and a first shaft disposed about the axis.