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Title: Film riding seals for rotary machines

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 segments includes a shoe plate with a forward-shoe section and an aft-shoe section having one or more labyrinth teeth therebetween facing the rotor. The sealing device includes a stator interface element having a groove or slot for allowing disposal of a spline seal for preventing segment leakages. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to the stator interface element. Further, the sealing device segments include a secondary seal integrated with the stator interface element at one end and positioned about the multiple bellow springs or flexures and the shoe plate at the other end.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1346051
Patent Number(s):
9,587,746
Application Number:
13/562,705
Assignee:
General Electric Company NETL
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jul 31
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bidkar, Rahul Anil, Sarawate, Neelesh Nandkumar, Wolfe, Christopher Edward, Ruggiero, Eric John, and Raj Mohan, Vivek Raja. Film riding seals for rotary machines. United States: N. p., 2017. Web.
Bidkar, Rahul Anil, Sarawate, Neelesh Nandkumar, Wolfe, Christopher Edward, Ruggiero, Eric John, & Raj Mohan, Vivek Raja. Film riding seals for rotary machines. United States.
Bidkar, Rahul Anil, Sarawate, Neelesh Nandkumar, Wolfe, Christopher Edward, Ruggiero, Eric John, and Raj Mohan, Vivek Raja. Tue . "Film riding seals for rotary machines". United States. doi:. https://www.osti.gov/servlets/purl/1346051.
@article{osti_1346051,
title = {Film riding seals for rotary machines},
author = {Bidkar, Rahul Anil and Sarawate, Neelesh Nandkumar and Wolfe, Christopher Edward and Ruggiero, Eric John and Raj Mohan, Vivek Raja},
abstractNote = {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 segments includes a shoe plate with a forward-shoe section and an aft-shoe section having one or more labyrinth teeth therebetween facing the rotor. The sealing device includes a stator interface element having a groove or slot for allowing disposal of a spline seal for preventing segment leakages. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to the stator interface element. Further, the sealing device segments include a secondary seal integrated with the stator interface element at one end and positioned about the multiple bellow springs or flexures and the shoe plate at the other end.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 07 00:00:00 EST 2017},
month = {Tue Mar 07 00:00:00 EST 2017}
}

Patent:

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