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Title: Axial seal system for a gas turbine steam-cooled rotor

Abstract

An axial seal assembly is provided at the interface between adjacent wheels and spacers of a gas turbine rotor and disposed about tubes passing through openings in the rotor adjacent the rotor rim and carrying a thermal medium. Each seal assembly includes a support bushing for supporting a land of the thermal medium carrying tube, an axially registering seat bushing disposed in the opposed opening and a frustoconical seal between the seal bushing and seat. The seal bushing includes a radial flange having an annular recess for retaining the outer diameter edge of the seal, while the seat bushing has an axially facing annular surface forming a seat for engagement by the inner diameter edge of the seal.

Inventors:
 [1]
  1. Anderson, SC
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
OSTI Identifier:
874834
Patent Number(s):
6471478
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
axial; seal; gas; turbine; steam-cooled; rotor; assembly; provided; interface; adjacent; wheels; spacers; disposed; tubes; passing; openings; rim; carrying; thermal; medium; support; bushing; supporting; land; tube; axially; registering; seat; opposed; frustoconical; radial; flange; annular; recess; retaining; outer; diameter; edge; facing; surface; forming; engagement; inner; gas turbine; turbine rotor; tubes pass; /416/277/285/415/

Citation Formats

Mashey, Thomas Charles. Axial seal system for a gas turbine steam-cooled rotor. United States: N. p., 2002. Web.
Mashey, Thomas Charles. Axial seal system for a gas turbine steam-cooled rotor. United States.
Mashey, Thomas Charles. Tue . "Axial seal system for a gas turbine steam-cooled rotor". United States. https://www.osti.gov/servlets/purl/874834.
@article{osti_874834,
title = {Axial seal system for a gas turbine steam-cooled rotor},
author = {Mashey, Thomas Charles},
abstractNote = {An axial seal assembly is provided at the interface between adjacent wheels and spacers of a gas turbine rotor and disposed about tubes passing through openings in the rotor adjacent the rotor rim and carrying a thermal medium. Each seal assembly includes a support bushing for supporting a land of the thermal medium carrying tube, an axially registering seat bushing disposed in the opposed opening and a frustoconical seal between the seal bushing and seat. The seal bushing includes a radial flange having an annular recess for retaining the outer diameter edge of the seal, while the seat bushing has an axially facing annular surface forming a seat for engagement by the inner diameter edge of the seal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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Works referenced in this record:

Development Requirements for an Advanced Gas Turbine System
journal, October 1995


Advances in Steam Path Technology
journal, April 1996