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公开(公告)号：US11624290B2
公开(公告)日：2023-04-11
申请号：US17143115
申请日：2021-01-06
Applicant: General Electric Company
Inventor： Nathan Evan McCurdy Gibson , Christopher Jon Potokar , Hariharan Manickavasagam Sarojini , Arnab Sen , Bikramjit Chatterjee
IPC: F01D11/02
Abstract: An aspirating face seal between high and low pressure regions of a turbomachine at a juncture between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces. Primary and starter seal teeth and optional deflector seal tooth are mounted on seal teeth carrier on rotatable member. Non-rotatable face surface is mounted on an annular slider on the non-rotatable member. A pull-off biasing means urges the annular slider away from the rotatable member and the non-rotatable face surface away from the rotatable surface. A secondary seal is in sealing engagement with the annular slider in the low pressure region and the pull-off biasing means is located radially outwardly of the annular slider in the high pressure region. Biasing means may include coil springs within spring chambers of circumferentially spaced cartridges. Tongues extend inwardly from spring chambers into grooves in slider.
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公开(公告)号：US20210108730A1
公开(公告)日：2021-04-15
申请号：US17128422
申请日：2020-12-21
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Christopher Edward Wolfe , Nathan Evan McCurdy Gibson , Rodrigo Rodriguez Erdmenger , Deepak Trivedi , Quang Tue Nguyen Tran
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.
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公开(公告)号：US10823078B2
公开(公告)日：2020-11-03
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 , F02C7/275 , F02C3/04 , H02J7/00 , H01G4/38 , H02K11/00 , F02C7/26 , B64D27/10 , B64F1/34 , H02J3/38 , B64D33/00 , B64C39/02 , B64D5/00 , H01G4/40 , H02J7/34
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.
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公开(公告)号：US10428673B2
公开(公告)日：2019-10-01
申请号：US15143878
申请日：2016-05-02
Applicant: General Electric Company
Abstract: An aspirating face seal assembly for a turbo-machine including a rotor assembly having a first radially extending portion defining a rotor surface is disclosed. The aspirating face seal assembly includes a seal body including a second radially extending portion defining a bearing surface and having a plurality of return channels. The second radially extending portion is disposed in the turbo-machine such that the bearing surface is disposed facing the rotor surface. The aspirating face seal assembly further includes an annular ring including one or more openings. The annular ring is concentrically disposed on the second radially extending portion and between the rotor surface and the second radially extending portion and configured to rotate in an event of rub between the first radially extending portion and the annular ring. A turbo-machine including the aspirating face seal assembly and a method for operating an aspirating face seal are also disclosed.
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公开(公告)号：US20190211699A1
公开(公告)日：2019-07-11
申请号：US15865359
申请日：2018-01-09
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Arnab Sen , Jeffrey Douglas Rambo , Rajesh Kumar , Nathan Evan McCurdy Gibson , Robert Proctor , Bhaskar Nanda Mondal , Steven Douglas Johnson
Abstract: A turbine engine includes an engine core defining a higher pressure region and a lower pressure region. A seal can fluidly separate the higher pressure region from the lower pressure region and be movably mounted to a component within the turbine engine, where a side of the seal can confront the component.
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Patent Agency Ranking
公开(公告)号：US09115810B2
公开(公告)日：2015-08-25
申请号：US14045083
申请日：2013-10-03
Applicant: General Electric Company
IPC: F16J15/447 , F16J15/44
CPC classification number: F16J15/447 , F16J15/442 , Y10T29/49826
Abstract: A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the sealing device segments includes a stator interface element, a shoe plate having an extended portion having one or more labyrinth teeth facing the rotor and a load bearing portion, wherein the shoe plate is configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment further includes a secondary seal configured to be in contact with the stator interface element at a radially outer end and configured to be in contact with an elevated nose section of the extended portion of the shoe plate on a radially inner end; and multiple flexible elements attached to the shoe plate and to the stator interface element.
Abstract translation: 提供了一种用于旋转机器的密封组件。 密封组件包括沿周向设置在固定壳体和转子周围的多个密封装置段。 每个密封装置段包括定子界面元件，具有延伸部分的鞋板，该延伸部分具有面向转子的一个或多个迷宫齿轮和承载部分，其中该鞋板构造成在鞋板和 转子。 密封装置段还包括次级密封件，其构造成在径向外端处与定子接口元件接触并且构造成与径向内端上的鞋板延伸部分的升高的鼻部部分接触; 以及附接到鞋板和定子界面元件的多个柔性元件。
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公开(公告)号：US20220145801A1
公开(公告)日：2022-05-12
申请号：US17474156
申请日：2021-09-14
Applicant: General Electric Company , GE Avio S.r.l.
Inventor： Nathan Evan McCurdy Gibson , David Justin Brady , Justin Paul Smith , Mirko Gernone
Abstract: A fuel system for a vehicle having an engine is provided. The fuel system including: a fuel tank for holding a hydrogen fuel in a liquid phase; a fuel delivery assembly extending from the fuel tank to the engine for providing the hydrogen fuel from the fuel tank to the engine; a vaporizer in communication with the fuel delivery assembly for heating the hydrogen fuel in the liquid phase to a gaseous phase, to a supercritical phase, or both; and a high pressure pump in fluid communication with the fuel delivery assembly at a location downstream of the vaporizer for inducing a flow of the hydrogen fuel through the fuel delivery assembly to the engine.
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公开(公告)号：US20210148243A1
公开(公告)日：2021-05-20
申请号：US17143115
申请日：2021-01-06
Applicant: General Electric Company
Inventor： Nathan Evan McCurdy Gibson , Christopher Jon Potokar , Hariharan Manickavasagam Sarojini , Arnab Sen , Bikramjit Chatterjee
IPC: F01D11/02
Abstract: An aspirating face seal between high and low pressure regions of a turbomachine at a juncture between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces. Primary and starter seal teeth and optional deflector seal tooth are mounted on seal teeth carrier on rotatable member. Non-rotatable face surface is mounted on an annular slider on the non-rotatable member. A pull-off biasing means urges the annular slider away from the rotatable member and the non-rotatable face surface away from the rotatable surface. A secondary seal is in sealing engagement with the annular slider in the low pressure region and the pull-off biasing means is located radially outwardly of the annular slider in the high pressure region. Biasing means may include coil springs within spring chambers of circumferentially spaced cartridges. Tongues extend inwardly from spring chambers into grooves in slider.
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公开(公告)号：US10677312B2
公开(公告)日：2020-06-09
申请号：US15897232
申请日：2018-02-15
Applicant: General Electric Company
Inventor： Richard Alan Wesling , Nathan Evan McCurdy Gibson
Abstract: Friction shaft damper includes springy projections pressing against inside surface of a portion of rotor such as drive shaft with spring force. Central mass may be positioned inside surface of drive shaft by projections extending outwardly from central mass and slideably engaging inside surface of drive shaft. Enlarged section or chamber of shaft may surround and axially trap damper. Axially spaced apart sets of springy fingers may position mass inside shaft and radially inner ends of fingers may be secured to mass and radially outer ends of fingers may be positioned and free to slide along inside surface of shaft. Two axially spaced apart annular deflection limiters may be placed around mass with small clearances C between deflection limiters and inside surface of shaft. Damper may be a multi-lobed wave spring having multi-lobed rim attached to mass by struts. Damper may be multi-lobed wave spring with crests.
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公开(公告)号：US20200166143A1
公开(公告)日：2020-05-28
申请号：US16201669
申请日：2018-11-27
Applicant: General Electric Company
Inventor： Quang Tue Nguyen Tran , Nathan Evan McCurdy Gibson , Rodrigo Rodriguez Erdmenger , Christopher Edward Wolfe , Steven Douglas Johnson , Antonio Guijarro Valencia
Abstract: A seal assembly for a rotary machine includes a seal bearing face that opposes a rotating component of the machine and a slide device coupled with the seal bearing face. 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 includes feed ports. The feed ports extend through the seal bearing face to form aerostatic portions of a film bearing between the seal bearing face and the rotating component. The seal bearing face and/or the rotating component has a non-planar surface that, during rotating motion of the rotating component relative to the face of the seal bearing face, forms aerodynamic portions of the film bearing.
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