skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Film riding seal assembly for turbomachinery

Abstract

An aerodynamic seal assembly for a rotary machine includes multiple sealing segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward load-bearing section and an aft load-bearing section configured to generate an aerodynamic force between the shoe plate and the rotor. The shoe plate includes at least one labyrinth teeth facing the rotor and positioned between the forward load-bearing section and the aft load-bearing section. The sealing segment also includes at least one spring connected to a pedestal located about midway of an axial length of the shoe plate and to a stator interface element. Further, the sealing segment includes a rigid segmented secondary seal attached to the stator interface element at one first end and in contact with the pedestal of the shoe plate at one second end.

Inventors:
; ; ;
Publication Date:
Research Org.:
General Electric Company, Niskayuna, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1255969
Patent Number(s):
9,359,908
Application Number:
14/325,452
Assignee:
General Electric Company (Niskayuna, NY) NETL
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jul 08
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Bidkar, Rahul Anil, Giametta, Andrew Paul, Gibson, Nathan Evan McCurdy, and Cleveland, Nicolas Joseph. Film riding seal assembly for turbomachinery. United States: N. p., 2016. Web.
Bidkar, Rahul Anil, Giametta, Andrew Paul, Gibson, Nathan Evan McCurdy, & Cleveland, Nicolas Joseph. Film riding seal assembly for turbomachinery. United States.
Bidkar, Rahul Anil, Giametta, Andrew Paul, Gibson, Nathan Evan McCurdy, and Cleveland, Nicolas Joseph. Tue . "Film riding seal assembly for turbomachinery". United States. doi:. https://www.osti.gov/servlets/purl/1255969.
@article{osti_1255969,
title = {Film riding seal assembly for turbomachinery},
author = {Bidkar, Rahul Anil and Giametta, Andrew Paul and Gibson, Nathan Evan McCurdy and Cleveland, Nicolas Joseph},
abstractNote = {An aerodynamic seal assembly for a rotary machine includes multiple sealing segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward load-bearing section and an aft load-bearing section configured to generate an aerodynamic force between the shoe plate and the rotor. The shoe plate includes at least one labyrinth teeth facing the rotor and positioned between the forward load-bearing section and the aft load-bearing section. The sealing segment also includes at least one spring connected to a pedestal located about midway of an axial length of the shoe plate and to a stator interface element. Further, the sealing segment includes a rigid segmented secondary seal attached to the stator interface element at one first end and in contact with the pedestal of the shoe plate at one second end.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 07 00:00:00 EDT 2016},
month = {Tue Jun 07 00:00:00 EDT 2016}
}

Patent:

Save / Share: