公开(公告)号：US10927693B2

公开(公告)日：2021-02-23

申请号：US16263596

申请日：2019-01-31

Applicant: General Electric Company

Inventor： Sathyanarayanan Raghavan ,  Gautam Suresh Naik ,  Prabhjot Singh ,  Zachary John Snider ,  Changjie Sun

IPC: F01D11/08 ,  F01D25/14 ,  F01D5/14 ,  F01D5/20

Abstract: A turbine shroud for turbine systems may include a unitary body including a support portion coupled directly to a turbine casing of the turbine system, and forward hook(s) and aft hook(s) formed integral with the support portion. The unitary body may also include an intermediate portion formed integral with and extending from the support portion. The intermediate portion may include a non-linear segment extending from the support portion, and a forward segment formed integral with the non-linear segment. The forward segment of the intermediate portion may be positioned axially upstream of the forward hook(s). Additionally the unitary body may include a seal portion formed integral with the intermediate portion, opposite the support portion. The seal portion may include a forward end formed integral with the intermediate portion. The forward end may be positioned axially upstream of the forward hook(s).

公开(公告)号：US10415579B2

公开(公告)日：2019-09-17

申请号：US15278860

申请日：2016-09-28

Applicant: General Electric Company

Inventor： Neelesh Nandkumar Sarawate ,  Larry Steven Rosenzweig ,  Sathyanarayanan Raghavan ,  Changjie Sun ,  Ananda Barua ,  Jinjie Shi

IPC: F01D5/14 ,  F04D29/02 ,  F04D29/32 ,  C23C30/00 ,  F01D5/28 ,  C23C4/11 ,  C23C4/134 ,  F02C3/06

Abstract: Coating systems for components of a gas turbine engine, such as a compressor blade tip, are provided. The coating system can include a ceramic material disposed along the compressor blade tip and may be used with a bare compressor casing. The ceramic coating is harder than the bare compressor casing and can reduce the rub ratio thereby increasing the lifetime of the compressor blades. Methods are also provided for applying the coating system onto a compressor blade.

公开(公告)号：US20180135638A1

公开(公告)日：2018-05-17

申请号：US15353182

申请日：2016-11-16

Applicant: General Electric Company

Inventor： Neelesh Nandkumar Sarawate ,  Luc Stephane Leblanc ,  Sathyanarayanan Raghavan ,  Changjie Sun ,  Ananda Barua

IPC: F04D29/02 ,  F04D29/38

CPC classification number: F04D29/023 ,  F04D29/526 ,  F05D2300/20

Abstract: Coating systems for components of a gas turbine engine, such as a compressor casing, are provided. The coating system can include a ceramic material disposed along the compressor casing on a surface to be adjacent to a rotating compressor blade. The coating system is harder than the compressor blade and can reduce the rub ratio between the casing and blade. The coating system can thereby increase the lifetime of the compressor casing and blades. Methods are also provided for applying the coating system onto a compressor casing.