公开(公告)号：US20140140841A1

公开(公告)日：2014-05-22

申请号：US13680974

申请日：2012-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Krishna Kishore Gumpina ,  Sheo Narain Giri ,  Sanjeev Kumar Jha ,  Mahesh Pasupuleti

IPC: F01D5/22

CPC classification number: F01D5/225

Abstract: A turbine bucket shroud arrangement for a turbine system includes a contact region of a tip shroud, wherein the contact region is in close proximity to an adjacent tip shroud. Also included is a negative thermal expansion material disposed proximate the contact region, the contact region comprising a first volume during a startup condition and a shutdown condition of the turbine system and a second volume during a steady state condition of the turbine system, wherein the second volume is less than the first volume.

Abstract translation: 用于涡轮机系统的涡轮机桶护罩装置包括尖端护罩的接触区域，其中接触区域紧邻相邻的末端护罩。 还包括设置在接触区域附近的负热膨胀材料，所述接触区域在涡轮机系统的启动状态和关闭状态期间包括第一体积和在涡轮机系统的稳定状态期间的第二体积，其中第二体积 体积小于第一卷。

公开(公告)号：US09297310B2

公开(公告)日：2016-03-29

申请号：US13654818

申请日：2012-10-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sheo Narain Giri ,  Sanjeev Kumar Jha ,  Bhaskar Pemmi ,  Harish Bommanakatte ,  Santhosh Donkada ,  Krishna Kishore Gumpina ,  Indrajit Mazumder ,  Rajarshi Saha

IPC: F02C7/12 ,  F02C9/18 ,  F01D25/08 ,  F02C6/08 ,  F01D25/14 ,  F01D5/08

CPC classification number: F01D17/10 ,  F01D5/08 ,  F01D5/082 ,  F01D17/105 ,  F01D25/08 ,  F01D25/12 ,  F01D25/14 ,  F02C3/04 ,  F02C6/08 ,  F02C7/12 ,  F02C7/141 ,  F02C7/18 ,  F02C9/18 ,  F04D29/522 ,  F04D29/582 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2260/20 ,  F05D2300/173 ,  F05D2300/502 ,  F05D2300/504 ,  F05D2300/505

Abstract: A cooling arrangement for a gas turbine engine. The cooling arrangement comprises a discharge channel for air flow from a compressor, a first cooling channel and at least one aperture providing communication between the flow of air through the discharge channel and the first cooling channel. A restrictor device in the aperture regulates the flow of air between the discharge channel and the first cooling channel. The restrictor device deforms to vary air flowing through the aperture in response to a physical condition of the engine. This physical condition of the engine may be that of the temperature of air flowing through the discharge channel, the restrictor device responding to regulate the flow of air based on that temperature. The restrictor device may be a two-way shape memory alloy.

Abstract translation: 一种用于燃气涡轮发动机的冷却装置。 冷却装置包括用于来自压缩机的气流的排出通道，第一冷却通道和提供通过排放通道的空气流与第一冷却通道之间的连通的至少一个孔。 孔中的限流装置调节排放通道和第一冷却通道之间的空气流。 限制器装置变形以响应于发动机的物理状况改变流过孔的空气。 发动机的这种物理状态可以是流过排放通道的空气的温度，限制装置响应于基于该温度调节空气的流量。 限流装置可以是双向形状记忆合金。

公开(公告)号：US20200088049A1

公开(公告)日：2020-03-19

申请号：US16134344

申请日：2018-09-18

Applicant: General Electric Company

Inventor： Vasantharuban Subramanian ,  Ronald Denmark ,  Prem Navin Dhayanandam ,  Richard Gutta ,  Sanjeev Kumar Jha

IPC: F01D9/04 ,  F01D25/28

Abstract: An airfoil and shroud assembly includes an airfoil including a root end, a free end and a tenon extending from the free end, the tenon including a base and an externally threaded stud extending from the base. A shroud includes an opening configured to receive the base of the tenon. A nut is configured to be threadably coupled to the externally threaded stud on the tenon on the airfoil to couple the shroud to the airfoil.

公开(公告)号：US11028709B2

公开(公告)日：2021-06-08

申请号：US16134344

申请日：2018-09-18

Applicant: General Electric Company

Inventor： Vasantharuban Subramanian ,  Ronald Denmark ,  Prem Navin Dhayanandam ,  Richard Gutta ,  Sanjeev Kumar Jha

IPC: F01D9/04 ,  F01D25/28

Abstract: An airfoil and shroud assembly includes an airfoil including a root end, a free end and a tenon extending from the free end, the tenon including a base and an externally threaded stud extending from the base. A shroud includes an opening configured to receive the base of the tenon. A nut is configured to be threadably coupled to the externally threaded stud on the tenon on the airfoil to couple the shroud to the airfoil.

公开(公告)号：US20140140807A1

公开(公告)日：2014-05-22

申请号：US13681057

申请日：2012-11-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Krishna Kishore Gumpina ,  Harish Bommanakatte ,  Sheo Narain Giri ,  Sanjeev Kumar Jha

IPC: F01D25/24

CPC classification number: F01D5/225 ,  F05D2300/5021 ,  F05D2300/505

Abstract: A turbine shroud arrangement for a turbine system includes a first region of a tip shroud, the first region disposed in close proximity to an adjacent tip shroud. Also included is a second region of the tip shroud, the second region disposed in close proximity to the adjacent tip shroud, the second region comprising a temperature sensitive material configured to engage the second region and the adjacent tip shroud in contact over a first operating condition of the turbine system and configured to provide a second region gap over a second operating condition of the turbine system.

Abstract translation: 用于涡轮机系统的涡轮机护罩装置包括尖端护罩的第一区域，第一区域设置成紧邻相邻的末梢护罩。 还包括尖端护罩的第二区域，第二区域设置成紧邻相邻的顶部护罩，第二区域包括温度敏感材料，其被配置为在第一操作条件下接合第二区域和相邻的尖端护罩接触 并且构造成在所述涡轮机系统的第二操作状态上提供第二区域间隙。

公开(公告)号：US20140119879A1

公开(公告)日：2014-05-01

申请号：US13662978

申请日：2012-10-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sanjeev Kumar Jha ,  Sheo Narain Giri

IPC: F01D11/04

CPC classification number: F01D11/001 ,  F05D2270/172

Abstract: Various embodiments include a turbomachine with a plasma seal system. The turbomachine can include: a diaphragm section having: an axially facing diaphragm wall; and a discourager seal protruding axially from the axially facing diaphragm wall; a rotor section having: a bucket having an axially facing bucket wall opposing the axially facing diaphragm wall; and a seal member extending from the axially facing bucket wall, wherein the seal member axially overlaps a portion of the discourager seal of the diaphragm section leaving a radial gap between the seal member and the discourager seal; and a plasma generator coupled to the diaphragm section for generating a plasma which reduces the radial gap between the seal member and the discourager seal.

Abstract translation: 各种实施例包括具有等离子体密封系统的涡轮机。 涡轮机可以包括：隔膜部分，其具有：轴向面对的隔膜壁; 以及从轴向面对的隔膜壁轴向突出的踩踏器密封件; 转子部分具有：具有与轴向面对的隔膜壁相对的轴向面对的铲斗壁的铲斗; 以及密封构件，其从所述轴向相对的铲斗壁延伸，其中所述密封构件与所述隔膜部分的所述挡板密封件的一部分轴向重叠，在所述密封构件和所述挡板密封件之间留有径向间隙; 以及耦合到所述隔膜部分的等离子体发生器，用于产生等离子体，所述等离子体减小了所述密封构件和所述挡板密封件之间的径向间隙。