公开(公告)号：US20180230821A1

公开(公告)日：2018-08-16

申请号：US15431981

申请日：2017-02-14

Applicant: General Electric Company

Inventor： William Scott Zemitis ,  Mahesh Pasupuleti ,  Bryan David Lewis ,  Melbourne James Myers

IPC: F01D5/22 ,  F01D5/14

CPC classification number: F01D5/225 ,  F01D5/147 ,  F01D5/20 ,  F05D2220/32 ,  F05D2240/307

Abstract: A turbine blade includes an airfoil that extends from a root end to a tip end. A tip shroud extends from the tip end. The turbine blade further includes a pressure side fillet. The pressure side fillet couples the tip end to the tip shroud. The pressure side fillet includes a first protrusion located adjacent to the tip end and a second protrusion located radially inward from the first protrusion.

公开(公告)号：US20140161612A1

公开(公告)日：2014-06-12

申请号：US13708588

申请日：2012-12-07

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Venkata Ramana Murthy Hemadribhotla ,  Michael Allen Ball ,  Patrick Clinton Bowling ,  Mahesh Pasupuleti ,  Alexander James Pistner

IPC: F01D25/00

CPC classification number: F01D25/00 ,  F01D21/003 ,  F05D2260/80

Abstract: A tip shroud of a bladed rotor can be monitored for integrity using a sensor configured to detect the tip shroud. A signal from the sensor can be monitored and if the magnitude of the signal changes, such as beyond a defined amount, an indication of possible damage can be made. A baseline sensed pattern for a revolution of the tip shroud can be compared to an operation sensed pattern for a subsequent revolution, and the indication of damage can be made if there is more than the defined amount and/or percentage of difference between the patterns.

Abstract translation: 使用被配置为检测尖端护罩的传感器，可以监视叶片转子的尖端护罩的完整性。 可以监测来自传感器的信号，并且如果信号的大小改变，例如超过限定的量，则可以产生可能的损坏的指示。 可以将尖端护罩的旋转的基线感测图案与用于随后旋转的操作感测图案进行比较，并且如果存在超过限定的量和/或图案之间的差异百分比，则可以进行损伤的指示。

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：US10526899B2

公开(公告)日：2020-01-07

申请号：US15431981

申请日：2017-02-14

Applicant: General Electric Company

Inventor： William Scott Zemitis ,  Mahesh Pasupuleti ,  Bryan David Lewis ,  Melbourne James Myers

IPC: F01D5/22 ,  F01D5/14 ,  F01D5/20

Abstract: A turbine blade includes an airfoil that extends from a root end to a tip end. A tip shroud extends from the tip end. The turbine blade further includes a pressure side fillet. The pressure side fillet couples the tip end to the tip shroud. The pressure side fillet includes a first protrusion located adjacent to the tip end and a second protrusion located radially inward from the first protrusion.