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11.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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12.发明授权公开(公告)号：US09291066B2
公开(公告)日：2016-03-22
申请号：US14076925
申请日：2013-11-11
Applicant: General Electric Company
Inventor： Xiaoqing Zheng , Roderick Mark Lusted , Azam Mihir Thatte , Christopher David Suttles
CPC classification number: F01D11/003 , F16J15/3436
Abstract: A hydrodynamic face seal ring for use in a rotary machine includes a support ring having at least two support ring segments and a radially-extending, first face. The support ring is configured to releasably couple to an inner surface of an outer casing of the rotary machine. The face seal ring also includes a sealing ring substantially concentric with the support ring. The sealing ring includes at least two sealing ring segments and a radially-extending, second face. The sealing ring is releasably coupled to the support ring such that the first face is mated against the second face.
Abstract translation: 用于旋转机器的流体动力面密封环包括具有至少两个支撑环段和径向延伸的第一面的支撑环。 支撑环构造成可释放地联接到旋转机器的外壳的内表面。 面密封环还包括与支撑环基本同心的密封环。 密封环包括至少两个密封环段和径向延伸的第二面。 密封环可释放地联接到支撑环，使得第一面与第二面配合。
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13.发明申请公开(公告)号：US20150130142A1
公开(公告)日：2015-05-14
申请号：US14076946
申请日：2013-11-11
Applicant: General Electric Company
Inventor： Xiaoqing Zheng , Rahul Anil Bidkar , Karimulla Shaik Sha , Azam Mihir Thatte
IPC: F01D11/00
CPC classification number: F01D11/003 , F01D11/005 , F16J15/002 , F16J15/34 , F16J15/3464 , F16J15/38 , F16J15/441 , Y10T29/49863
Abstract: A seal ring assembly for use with a rotary machine that includes an axis of rotation includes a seal housing comprising a secondary sealing surface and a secondary seal assembly coupled to the seal housing. The secondary seal assembly includes a seal ring coupled to the seal housing, wherein the seal ring is configured to form a secondary seal with the secondary sealing surface. The secondary seal assembly also includes at least one protection ring positioned upstream from the seal ring. The secondary seal assembly is configured to be biased along the axis such that biasing the at least one protection ring facilitates removing debris from at least a portion of the secondary sealing surface over which the seal ring travels during biasing.
Abstract translation: 一种与包括旋转轴线的旋转机器一起使用的密封环组件包括密封壳体，其包括二次密封表面和联接到密封壳体的次级密封组件。 二次密封组件包括联接到密封壳体的密封环，其中密封环被构造成与次密封表面形成二次密封。 次级密封组件还包括位于密封环上游的至少一个保护环。 次级密封组件被构造成沿着轴线被偏置，使得偏置至少一个保护环有助于从偏压期间密封环在其上行进的次级密封表面的至少一部分去除碎屑。
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公开(公告)号：US10208609B2
公开(公告)日：2019-02-19
申请号：US14299280
申请日：2014-06-09
Applicant: General Electric Company
Inventor： Chiranjeev Singh Kalra , Azam Mihir Thatte , Douglas Carl Hofer
Abstract: A turbine operable with a first fluid and a second fluid is provided. The turbine includes a shaft and having a dry gas seal area, a balance area, and a shaft surface. The turbine also includes a stationary component coupled to a housing and having a first side and a second side and defining a channel in flow communication with the shaft surface. A heat exchange assembly is coupled to the housing and in flow communication with the shaft and the stationary component. The heat exchange assembly includes a first flow path coupled in flow communication with the dry gas seal area and the channel and configured to direct the first fluid along the first side. Heat exchange assembly also includes a second flow path coupled in flow communication with the balance area and channel and configured to direct the second fluid along the second side.
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公开(公告)号：US10161259B2
公开(公告)日：2018-12-25
申请号：US14878862
申请日：2015-10-08
Applicant: General Electric Company
Inventor： Nathan Evan McCurdy Gibson , Rahul Anil Bidkar , Azam Mihir Thatte , Narayana Shastry , Hariharan Manickavasagam Sarojini
IPC: F01D11/00 , F16J15/44 , F01D11/02 , F01D11/16 , F01D11/14 , F01D11/08 , F01D11/04 , F01D11/10 , F01D11/12
Abstract: A seal apparatus for a rotary machine, including a plurality of sealing assembly segments surrounding a rotor element which is mounted for rotation about a longitudinal axis and has an outer surface. Each of the segments includes a shoe with one or more labyrinth teeth facing the outer surface and a shoe plate disposed downstream of the one or more labyrinth seal teeth and configured to generate an aerodynamic force between the shoe plate and the outer surface of the rotor element. The shoe is further configured to be flexible in a radial-axial plane in response to fluid film forces generated by interaction of the sealing assembly segment and the rotor element, and an axially-oriented beam spring connects the shoe to a stationary seal body.
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Patent Agency Ranking
公开(公告)号：US20150275685A1
公开(公告)日：2015-10-01
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.
Abstract translation: 本公开的实施例涉及一种被配置为围绕涡轮机的转子设置的定子环，其中定子环包括从定子环的密封面延伸的多个流体动力垫，其中多个流体动力垫 构造成与转子环流体动力接合。
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公开(公告)号：US20150275684A1
公开(公告)日：2015-10-01
申请号：US14226583
申请日：2014-03-26
Applicant: General Electric Company
Inventor： Azam Mihir Thatte , Karimulla Shaik Sha , Rahul Anil Bidkar , Xiaoqing Zheng
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 stator ring comprises a first ring segment and a second ring segment configured to cooperatively form the stator ring, wherein the first and second ring segments are circumferentially split and have at least one bearing element disposed between the first and second ring segments, and wherein the at least one bearing element is configured to enable relative axial motion between the first and second ring segments at interfaces between the first and second ring segments
Abstract translation: 本公开的实施例涉及一种面密封件，其包括构造成围绕涡轮机的转子设置的定子环，其中定子环包括构造成协同地形成定子环的第一环段和第二环段，其中第一 并且第二环段被周向地分开并且具有设置在第一和第二环段之间的至少一个轴承元件，并且其中所述至少一个轴承元件构造成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 和第二环段
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公开(公告)号：US09045994B2
公开(公告)日：2015-06-02
申请号：US13665431
申请日：2012-10-31
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Matthew Michael Langenderfer , Hrishikesh Vishvas Deo , Azam Mihir Thatte
IPC: F16J15/447 , F01D11/02 , F16J15/44
CPC classification number: F01D11/02 , F01D11/025 , F05D2240/55 , 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. The sealing device segment also includes a shoe plate having one or more labyrinth teeth facing the rotor and a load-bearing surface region, wherein the shoe plate allows a high pressure fluid to an upstream portion of the forwardmost labyrinth tooth and a low pressure fluid to a downstream portion of the aftmost labyrinth tooth. The sealing device segment further includes a secondary seal in contact with the stator interface element at a radially outer end and in contact with an elevated nose of the shoe plate on a radially inner end; and multiple bellow springs or flexures 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接口元件。 密封装置段还包括具有面向转子的一个或多个迷宫齿和承载表面区域的鞋板，其中，鞋板允许高压流体到达最前面的迷宫齿的上游部分，而低压流体 最后迷宫齿的下游部分。 密封装置段还包括在径向外端处与定子界面元件接触并在径向内端上与鞋板的升高的鼻部接触的次级密封件; 以及多个波纹管弹簧或挠曲件，其附接到鞋板和定子接口元件。
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公开(公告)号：US10415707B2
公开(公告)日：2019-09-17
申请号：US15397317
申请日：2017-01-03
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Azam Mihir Thatte , Jifeng Wang , Xiaoqing Zheng , Edip Sevincer
Abstract: A turbomachine and a method of operating the turbomachine are disclosed. The turbomachine includes a stator, a rotor including a rotor bearing face, a face seal assembly, a first pressure cavity, and a second pressure cavity. The face seal assembly includes a seal ring including a seal bearing face, a first pressure cavity, and a plurality of isolated hydrostatic ports extending from the first pressure cavity to the seal bearing face. The face seal assembly is slidably coupled to the stator and defines a face seal clearance between the rotor and seal bearing faces. The second and third pressure cavities are defined by the stator, the rotor, and the face seal assembly. The third pressure cavity is disposed downstream of the second pressure cavity with reference to flow of a process fluid along the stator and rotor. The first pressure cavity is isolated from the second and third pressure cavities.
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公开(公告)号：US20150354383A1
公开(公告)日：2015-12-10
申请号：US14299280
申请日：2014-06-09
Applicant: General Electric Company
Inventor： Chiranjeev Singh Kalra , Azam Mihir Thatte , Douglas Carl Hofer
CPC classification number: F01D11/003 , B23P15/04 , F01D1/02 , F01D11/04 , F01D11/06 , F01D25/12 , F02C6/18 , F05D2240/55 , F05D2260/20 , Y10T29/49323
Abstract: A turbine operable with a first fluid and a second fluid is provided. The turbine includes a shaft and having a dry gas seal area, a balance area, and a shaft surface. The turbine also includes a stationary component coupled to a housing and having a first side and a second side and defining a channel in flow communication with the shaft surface. A heat exchange assembly is coupled to the housing and in flow communication with the shaft and the stationary component. The heat exchange assembly includes a first flow path coupled in flow communication with the dry gas seal area and the channel and configured to direct the first fluid along the first side. Heat exchange assembly also includes a second flow path coupled in flow communication with the balance area and channel and configured to direct the second fluid along the second side.
Abstract translation: 提供了可与第一流体和第二流体一起操作的涡轮机。 涡轮机包括轴，具有干燥气体密封区域，平衡区域和轴表面。 涡轮机还包括联接到壳体并具有第一侧和第二侧并且限定与轴表面流动连通的通道的固定部件。 热交换组件联接到壳体并与轴和固定部件流动连通。 热交换组件包括与干燥气体密封区域和通道流体连通的第一流动路径，并且被配置为沿第一侧引导第一流体。 热交换组件还包括与平衡区域和通道流体连通并且被配置为沿第二侧引导第二流体的第二流动路径。
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