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Title: Pressure actuated film riding seals for turbo machinery

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, a shoe plate having an extended portion having one or more labyrinth teeth facing the rotor and a load bearing portion, wherein the shoe plate is configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment further includes a secondary seal configured to be in contact with the stator interface element at a radially outer end and configured to be in contact with an elevated nose section of the extended portion of the shoe plate on a radially inner end; and multiple flexible elements attached to the shoe plate and to the stator interface element.

Inventors:
; ; ;
Publication Date:
Research Org.:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1212402
Patent Number(s):
9,115,810
Application Number:
14/045,083
Assignee:
General Electric Company (Niskayuna, NY) NETL
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 03
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bidkar, Rahul Anil, Thatte, Azam Mihir, Gibson, Nathan Evan McCurdy, and Giametta, Andrew Paul. Pressure actuated film riding seals for turbo machinery. United States: N. p., 2015. Web.
Bidkar, Rahul Anil, Thatte, Azam Mihir, Gibson, Nathan Evan McCurdy, & Giametta, Andrew Paul. Pressure actuated film riding seals for turbo machinery. United States.
Bidkar, Rahul Anil, Thatte, Azam Mihir, Gibson, Nathan Evan McCurdy, and Giametta, Andrew Paul. Tue . "Pressure actuated film riding seals for turbo machinery". United States. doi:. https://www.osti.gov/servlets/purl/1212402.
@article{osti_1212402,
title = {Pressure actuated film riding seals for turbo machinery},
author = {Bidkar, Rahul Anil and Thatte, Azam Mihir and Gibson, Nathan Evan McCurdy and Giametta, Andrew Paul},
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 sealing device segments includes a stator interface element, a shoe plate having an extended portion having one or more labyrinth teeth facing the rotor and a load bearing portion, wherein the shoe plate is configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment further includes a secondary seal configured to be in contact with the stator interface element at a radially outer end and configured to be in contact with an elevated nose section of the extended portion of the shoe plate on a radially inner end; and multiple flexible elements attached to the shoe plate and to the stator interface element.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 25 00:00:00 EDT 2015},
month = {Tue Aug 25 00:00:00 EDT 2015}
}

Patent:

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Works referenced in this record:

Hydrodynamic foil face seal
patent, August 2007