公开(公告)号：US20200025010A1

公开(公告)日：2020-01-23

申请号：US16575971

申请日：2019-09-19

Applicant: General Electric Company

Inventor： Nathan Evan McCurdy Gibson ,  Darek Tomasz Zatorski

IPC: F01D11/06 ,  F01D1/26 ,  F02C3/067 ,  F01D11/14 ,  F01D11/16 ,  F02K3/072 ,  F01D11/02 ,  F01D5/03 ,  F01D5/22 ,  F01D25/24

Abstract: The present disclosure is directed to a gas turbine engine including a turbine rotor, a turbine frame at least partially surrounding the turbine rotor, and an outer diameter seal assembly. The turbine rotor includes 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 outer diameter seal assembly includes a sliding portion disposed between the turbine frame and the outer shroud of the turbine rotor. The outer diameter seal assembly defines a secondary tooth at the outer shroud radially inward of a longitudinal face of the sliding portion, and a primary tooth defined axially adjacent to a radial face of the sliding portion.

公开(公告)号：US20180372229A1

公开(公告)日：2018-12-27

申请号：US14619246

申请日：2015-02-11

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Christopher Edward Wolfe ,  Bugra Han Ertas ,  Adolfo Delgado Marquez ,  Nathan Evan McCurdy Gibson

IPC: F16J15/447

Abstract: A seal assembly for a rotary machine is provided. The seal assembly includes a plurality of seal segments disposed circumferentially intermediate to a stationary housing and a rotor, where each of the plurality of seal segments includes a stator interface element and a shoe plate movably supported by the stator interface element. The shoe plate includes one or more labyrinth teeth, a load-bearing surface, and one or more supply ports for facilitating supply of high pressure fluid toward the rotor. In one embodiment, the shoe plate also includes a radially extending portion that is in contact with a portion of the ring movably supported into the stator interface element. In another embodiment, each of the plurality of seal segments includes a plurality of overlapping spring-loaded leaf seal plates in contact with the stator interface element and the radially extending portion. Method of operating the seal segment is also disclosed.

公开(公告)号：US20170298752A1

公开(公告)日：2017-10-19

申请号：US15131154

申请日：2016-04-18

Applicant: General Electric Company

Inventor： Joshua Tyler Mook ,  Bugra Han Ertas ,  Jason Joseph Bellardi ,  Nathan Evan McCurdy Gibson

IPC: F01D11/04 ,  F01D25/22 ,  F16J15/40 ,  F16C32/06 ,  F16J15/447 ,  F01D11/00 ,  F01D25/16

CPC classification number: F01D11/04 ,  F01D11/003 ,  F01D25/16 ,  F01D25/22 ,  F05D2220/32 ,  F05D2240/53 ,  F05D2240/55 ,  F05D2260/98 ,  F16C32/0607 ,  F16C32/0622 ,  F16C2360/23 ,  F16J15/40 ,  F16J15/447

Abstract: A turbomachine includes a compressor section, a turbine section, and a rotary component. The rotary component is attached to and rotatable with a portion of at least one of the compressor section and the turbine section. The turbomachine additionally includes a seal having a gas bearing. The gas bearing defines an inner surface along a radial direction of the turbomachine, a high pressure end, and a low pressure end. The gas bearing supports the rotary component and also prevents an airflow from the high pressure end to the low pressure end between the rotary component and the inner surface of the gas bearing.

公开(公告)号：US11118469B2

公开(公告)日：2021-09-14

申请号：US16194653

申请日：2018-11-19

Applicant: General Electric Company

Inventor： Rodrigo Rodriguez Erdmenger ,  Nathan Evan McCurdy Gibson ,  Quang Tue Nguyen Tran ,  Antonio Guijarro Valencia

IPC: F01D11/16

Abstract: An aspect of the present disclosure is directed to a seal assembly. The seal assembly includes a fluid bearing wall including a bearing face defining a fluid opening through the fluid bearing wall. The seal assembly further includes a tilt member is extended from and attached to the fluid bearing wall. The tilt member defines a fluid passage therethrough in fluid communication with the fluid opening at the bearing face of the fluid bearing wall. The seal assembly still further includes a seal body surrounding the tilt member. A cavity is defined between the tilt member and the seal body. The seal assembly further includes a spring member coupled to the seal body and the fluid bearing wall. A passage is defined between the fluid bearing wall and the seal body.

公开(公告)号：US10900570B2

公开(公告)日：2021-01-26

申请号：US16201564

申请日：2018-11-27

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Christopher Edward Wolfe ,  Nathan Evan McCurdy Gibson ,  Rodrigo Rodriguez Erdmenger ,  Deepak Trivedi ,  Quang Tue Nguyen Tran

IPC: F16J15/44 ,  F01D5/20 ,  F16J15/40 ,  F01D5/22

Abstract: A seal assembly for a rotary machine is positioned between a rotating component and a stationary component of the rotary machine. The seal assembly includes a seal bearing face that opposes the rotating component and a slide device. The slide device is positioned between different fluid pressure volumes in the rotary machine. The slide device axially moves toward the rotating component responsive to pressurization of the rotary machine. The slide device includes cross-over ports and the seal bearing face includes feed ports. The feed ports extend through the seal bearing face to form an aerostatic portion of a film bearing between the seal bearing face and the rotating component. The seal bearing face and/or the rotating component is a non-planar surface that, during rotating motion of the rotating component, forms an aerodynamic portion of the film bearing between the seal bearing face and the rotating component.

公开(公告)号：US10823184B2

公开(公告)日：2020-11-03

申请号：US15221962

申请日：2016-07-28

Applicant: General Electric Company

Inventor： Arnab Sen ,  Mohamed Musthafa Thoppil ,  Nathan Evan McCurdy Gibson

IPC: F01D11/02 ,  F04D27/00 ,  F01D11/04 ,  F16J15/34 ,  F01D5/02 ,  F01D9/02 ,  F01D11/00 ,  F01D25/10 ,  F04D29/056 ,  F04D29/32 ,  F04D29/54

Abstract: A turbine engine with a stator having axially spaced first and second structural elements along with a rotor and a face seal between the rotor and the stator including a non-rotating gas bearing face coupled to the first and second structural elements, and a rotating gas bearing face coupled to the rotor and confronting the non-rotating gas bearing surface. Introducing airflow to one or multiple parts of the seal.

公开(公告)号：US20190203842A1

公开(公告)日：2019-07-04

申请号：US16296620

申请日：2019-03-08

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Steven Douglas Johnson ,  Nathan Evan McCurdy Gibson

IPC: F16J15/447 ,  F01D11/02 ,  F01D11/08

CPC classification number: F16J15/4476 ,  F01D11/02 ,  F01D11/08

Abstract: A seal assembly of a rotary includes a radially oriented plate that axially opposes a front and rear support plates of a stator interface. The seal assembly also includes a film-riding shoe coupled with the radially oriented plate. The shoe forms a shoe fluid bearing between the shoe and a rotating component responsive to rotation of the rotating component and pressurization of fluid in the rotary machine upstream of the stator interface. One or more of the stator interface or the film-riding shoe includes one or more ports or pathways through which higher-pressure fluid upstream of the stator housing in the rotary machine flows to form an aft axial fluid bearing between the radially oriented plate and the rear support plate of the stator interface.

公开(公告)号：US10190431B2

公开(公告)日：2019-01-29

申请号：US14619246

申请日：2015-02-11

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Christopher Edward Wolfe ,  Bugra Han Ertas ,  Adolfo Delgado Marquez ,  Nathan Evan McCurdy Gibson

IPC: F01D11/02 ,  F16J15/44 ,  F16J15/447

Abstract: A seal assembly for a rotary machine is provided. The seal assembly includes a plurality of seal segments disposed circumferentially intermediate to a stationary housing and a rotor, where each of the plurality of seal segments includes a stator interface element and a shoe plate movably supported by the stator interface element. The shoe plate includes one or more labyrinth teeth, a load-bearing surface, and one or more supply ports for facilitating supply of high pressure fluid toward the rotor. In one embodiment, the shoe plate also includes a radially extending portion that is in contact with a portion of the ring movably supported into the stator interface element. In another embodiment, each of the plurality of seal segments includes a plurality of overlapping spring-loaded leaf seal plates in contact with the stator interface element and the radially extending portion. Method of operating the seal segment is also disclosed.

公开(公告)号：US20190003398A1

公开(公告)日：2019-01-03

申请号：US15635574

申请日：2017-06-28

Applicant: General Electric Company

Inventor： Nathan Evan McCurdy Gibson ,  Christopher James Kroger ,  Sean Christopher Binion ,  Scott Douglas Waun

IPC: F02C7/268 ,  F02C3/04 ,  B64C39/02 ,  B64D5/00 ,  H02J7/00 ,  H01G4/38 ,  H02K11/00

Abstract: Systems and methods for starting a powerplant are provided. In one exemplary aspect, a starting system of a powerplant includes one or more features that allow for the powerplant to be started electrically with a burst of electrical power and without deriving electrical power from an offboard power source or a relatively heavy onboard energy storage device.

公开(公告)号：US20180252317A1

公开(公告)日：2018-09-06

申请号：US15450130

申请日：2017-03-06

Applicant: General Electric Company

Inventor： Brian Joseph Prenger ,  Richard Alan Wesling ,  Nathan Evan McCurdy Gibson ,  Ravindra Shankar Ganiger ,  Narendra Anand Hardikar ,  Anand Aravindrao Kulkarni

IPC: F16J15/447 ,  F16J15/02 ,  F01D11/02 ,  F04D29/08

CPC classification number: F16J15/447 ,  F01D11/001 ,  F01D11/003 ,  F01D11/02 ,  F01D11/025 ,  F04D29/164 ,  F04D29/526 ,  F05D2260/38 ,  F05D2260/52

Abstract: Aspirating face seal between high and low pressure regions of turbomachine between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces, non-rotatable face surface mounted on annular slider on non-rotatable member. Retracting means retracts annular slider away from rotatable member and non-rotatable face surface away from rotatable surface and includes circumferentially spaced apart non-coiled springs axially disposed between slider and non-rotatable engine member. Leaf springs may include first and second ends mounted or attached to first and second mounting lugs or tabs attached to non-rotatable member and slider respectively and middle portion between ends. Springs oriented for retracting slider if slider contacts rotatable member. Primary and starter seal teeth may be mounted on carrier on rotatable member. Primary seal tooth may be on non-rotatable member and starter seal tooth on rotatable member.