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Title: Pressure actuated film riding seals for turbo machinery

Patent ·
OSTI ID:1212402
; ; ;

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.

Research Organization:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company (Niskayuna, NY)
Patent Number(s):
9,115,810
Application Number:
14/045,083
OSTI ID:
1212402
Resource Relation:
Patent File Date: 2013 Oct 03
Country of Publication:
United States
Language:
English

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  • Ya, Zheng; Ying, Wang; Yiping, Dai
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conference July 2012
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