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Title: Triple acting radial seal

Abstract

A triple acting radial seal used as an interstage seal assembly in a gas turbine engine, where the seal assembly includes an interstage seal support extending from a stationary inner shroud of a vane ring, the interstage seal support includes a larger annular radial inward facing groove in which an outer annular floating seal assembly is secured for radial displacement, and the outer annular floating seal assembly includes a smaller annular radial inward facing groove in which an inner annular floating seal assembly is secured also for radial displacement. A compliant seal is secured to the inner annular floating seal assembly. The outer annular floating seal assembly encapsulates the inner annular floating seal assembly which is made from a very low alpha material in order to reduce thermal stress.

Inventors:
 [1];  [2]
  1. West Palm Beach, FL
  2. Jupiter, FL
Issue Date:
Research Org.:
Florida Turbine Technologies, Inc. (Jupiter, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1039760
Patent Number(s):
8133014
Application Number:
12/542,495
Assignee:
Florida Turbine Technologies, Inc. (Jupiter, FL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
DOE Contract Number:  
FG02-07ER84668
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Ebert, Todd A, and Carella, John A. Triple acting radial seal. United States: N. p., 2012. Web.
Ebert, Todd A, & Carella, John A. Triple acting radial seal. United States.
Ebert, Todd A, and Carella, John A. Tue . "Triple acting radial seal". United States. https://www.osti.gov/servlets/purl/1039760.
@article{osti_1039760,
title = {Triple acting radial seal},
author = {Ebert, Todd A and Carella, John A},
abstractNote = {A triple acting radial seal used as an interstage seal assembly in a gas turbine engine, where the seal assembly includes an interstage seal support extending from a stationary inner shroud of a vane ring, the interstage seal support includes a larger annular radial inward facing groove in which an outer annular floating seal assembly is secured for radial displacement, and the outer annular floating seal assembly includes a smaller annular radial inward facing groove in which an inner annular floating seal assembly is secured also for radial displacement. A compliant seal is secured to the inner annular floating seal assembly. The outer annular floating seal assembly encapsulates the inner annular floating seal assembly which is made from a very low alpha material in order to reduce thermal stress.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {3}
}