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公开(公告)号：US20230279781A1
公开(公告)日：2023-09-07
申请号：US17841847
申请日：2022-06-16
Inventor： Ravindra Shankar Ganiger , Neelesh Nandkumar Sarawate , Rahul Anil Bidkar , Narendra Anand Hardikar , Kevin Randall McManus , Steven Douglas Johnson , Prateek Jalan , Antonio Guijarro Valencia , Julius John Montgomery , Rodrigo Rodriguez Erdmenger , Jose Maria Rey Villazon
CPC classification number: F01D11/003 , F01D11/02 , F01D11/001 , F05D2240/56 , F05D2220/323
Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.
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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
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：US20190203842A1
公开(公告)日：2019-07-04
申请号：US16296620
申请日：2019-03-08
Applicant: General Electric Company
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.
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公开(公告)号：US20190072186A1
公开(公告)日：2019-03-07
申请号：US15697062
申请日：2017-09-06
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Bugra Ertas , Christopher Wolfe , Deepak Trivedi
IPC: F16J15/447
Abstract: A seal assembly for a rotary machine includes plural seal segments disposed circumferentially intermediate to a stationary housing and a rotor. One or more of the seal segments includes a stator interface element, a radially oriented front cover plate, and a movably supported shoe plate. The shoe plate includes one or more labyrinth teeth forming a primary seal with the rotor, a load bearing surface radially offset from the one or more labyrinth teeth, a radial surface forming a frictionless secondary seal with the front cover plate, and one or more internal passageways configured to direct fluid through the shoe plate or through the front cover plate, and between the radial surface of the shoe plate and the front cover plate to form the frictionless secondary seal.
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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.
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Patent Agency Ranking
公开(公告)号：US20180003067A1
公开(公告)日：2018-01-04
申请号：US15397278
申请日：2017-01-03
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Azam Mihir Thatte , Jifeng Wang , Xiaoqing Zheng , Edip Sevincer
CPC classification number: F01D11/003 , F01D5/02 , F01D9/041 , F01D25/16 , F01D25/183 , F01D25/22 , F05D2220/32 , F05D2230/60 , F05D2240/55 , F16J15/342 , F16J15/3468 , F16J15/3488 , F16J15/442
Abstract: A turbomachine and a method of operating the turbomachine are disclosed. The turbomachine includes a stator, a rotor including a rotor bearing face, and a face seal assembly including a first segmented seal ring and a second segmented seal ring. The first segmented seal ring includes a plurality of joints and a first flat-contact surface and the second segmented seal ring includes a plurality of segment ends and a second flat-contact surface. One of the first and second segmented seal rings includes a seal bearing face. The second segmented seal ring is coupled to the first segmented seal ring such that the second flat-contact surface is in contact with the first flat-contact surface. The plurality of segment ends is circumferentially offset from the plurality of joints. The first segmented seal ring is slidably coupled to the stator and defines a face seal clearance between the rotor and seal bearing faces.
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公开(公告)号：US09611749B2
公开(公告)日：2017-04-04
申请号：US14226617
申请日：2014-03-26
Applicant: General Electric Company
Inventor： Azam Mihir Thatte , Rahul Anil Bidkar , Xiaoqing Zheng
CPC classification number: F01D11/001 , F01D1/04 , F01D11/003 , F01D25/22 , F05D2220/31
Abstract: Embodiments of the present disclosure are directed toward a stator ring configured to be disposed about a rotor of a turbine, wherein the stator ring comprises a plurality of hydrodynamic pads extending from a sealing face of the stator ring, wherein each of the plurality of hydrodynamic pads is configured to hydrodynamically engage with a rotor ring.
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58.发明申请公开(公告)号：US20170051620A1
公开(公告)日：2017-02-23
申请号：US15346001
申请日：2016-11-08
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Azam Mihir Thatte , Karimulla Shaik Sha , Rahul Anil Bidkar , Xiaoqing Zheng
IPC: F01D11/00
CPC classification number: F01D11/003 , F01D1/04 , F01D11/001 , F05D2220/31 , F05D2240/53 , Y02E20/16
Abstract: Embodiments of the present disclosure are directed toward a face seal including a stator ring configured to be disposed about a rotor of a turbine, wherein the stator ring includes a first ring segment and a second ring segment which are circumferentially split and configured to cooperatively form the stator ring, and bearing elements disposed between the first and second ring segments and configured to enable relative axial motion between the first and second ring segments at interfaces between the first and second ring segments. The stator ring further includes hydrodynamic surface features on surfaces of the first and second ring segments configured for facing the rotor, wherein the hydrodynamic surface features comprise Y-shaped grooves each comprising a stem portion extending from a middle region of stator ring and splitting into inner and outer branches extending towards inner and outer diameters of the stator ring and terminating prior to the inner and outer diameters.
Abstract translation: 本公开的实施例涉及一种面密封件，其包括构造成绕涡轮机的转子设置的定子环，其中定子环包括第一环段和第二环段，所述第一环段和第二环段周向地分开并构造成协同地形成 定子环和轴承元件，其设置在第一和第二环段之间并且被配置为使得能够在第一和第二环段之间的界面处的第一和第二环段之间的相对轴向运动。 定子环还包括在第一和第二环段的表面上的流体动力学表面特征，其被构造用于面向转子，其中流体动力学表面特征包括Y形槽，每个凹槽包括从定子环的中间区域延伸并分裂成内部 以及外分支延伸到定子环的内径和外径，并在内径和外径之前终止。
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公开(公告)号：US09359908B2
公开(公告)日：2016-06-07
申请号：US14325452
申请日：2014-07-08
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Andrew Paul Giametta , Nathan Evan McCurdy Gibson , Nicolas Joseph Cleveland
IPC: F16J15/44 , F01D11/02 , F16J15/447
CPC classification number: F01D11/02 , F01D11/025 , F16J15/442 , F16J15/4478 , Y02T50/672
Abstract: An aerodynamic seal assembly for a rotary machine includes multiple sealing segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward load-bearing section and an aft load-bearing section configured to generate an aerodynamic force between the shoe plate and the rotor. The shoe plate includes at least one labyrinth teeth facing the rotor and positioned between the forward load-bearing section and the aft load-bearing section. The sealing segment also includes at least one spring connected to a pedestal located about midway of an axial length of the shoe plate and to a stator interface element. Further, the sealing segment includes a rigid segmented secondary seal attached to the stator interface element at one first end and in contact with the pedestal of the shoe plate at one second end.
Abstract translation: 用于旋转机器的空气动力学密封组件包括沿周向设置在固定壳体和转子上的多个密封段。 每个段包括具有前承载部分的鞋板和被构造成在鞋板和转子之间产生空气动力的后承重部分。 鞋板包括面向转子的至少一个迷宫齿，并位于前承载部分和后承重部分之间。 所述密封段还包括至少一个弹簧，所述至少一个弹簧连接到位于所述鞋板的轴向长度的大约中间的基座和定子接口元件。 此外，密封段包括在一个第一端处附接到定子界面元件并且在一个第二端处与鞋板的基座接触的刚性分段的次级密封件。
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公开(公告)号：US20160010480A1
公开(公告)日：2016-01-14
申请号：US14325452
申请日：2014-07-08
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Andrew Paul Giametta , Nathan Evan McCurdy Gibson , Nicolas Joseph Cleveland
IPC: F01D11/02 , F16J15/447
CPC classification number: F01D11/02 , F01D11/025 , F16J15/442 , F16J15/4478 , Y02T50/672
Abstract: An aerodynamic seal assembly for a rotary machine includes multiple sealing segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward load-bearing section and an aft load-bearing section configured to generate an aerodynamic force between the shoe plate and the rotor. The shoe plate includes at least one labyrinth teeth facing the rotor and positioned between the forward load-bearing section and the aft load-bearing section. The sealing segment also includes at least one spring connected to a pedestal located about midway of an axial length of the shoe plate and to a stator interface element. Further, the sealing segment includes a rigid segmented secondary seal attached to the stator interface element at one first end and in contact with the pedestal of the shoe plate at one second end.
Abstract translation: 用于旋转机器的空气动力学密封组件包括沿周向设置在固定壳体和转子上的多个密封段。 每个段包括具有前承载部分的鞋板和被构造成在鞋板和转子之间产生空气动力的后承重部分。 鞋板包括面向转子的至少一个迷宫齿，并位于前承载部分和后承重部分之间。 所述密封段还包括至少一个弹簧，所述至少一个弹簧连接到位于所述鞋板的轴向长度的大约中间的基座和定子接口元件。 此外，密封段包括在一个第一端处附接到定子界面元件并且在一个第二端处与鞋板的基座接触的刚性分段的次级密封件。
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