Axial seal system for a gas turbine steam-cooled rotor

Mashey, Thomas Charles

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:

Mashey, Thomas Charles ^[1]

Anderson, SC

Issue Date:: 2002-01-01

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

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D11/005 - {Sealing means between non relatively rotating elements}
F01D5/08 - Heating, heat-insulating or cooling means {

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
Y10S285/917 - Metallic seals

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T50/60 - Efficient propulsion technologies

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D5/084 - {the fluid circulating at the periphery of a multistage rotor, e.g. of drum type}

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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.

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                    Mashey, Thomas Charles. Axial seal system for a gas turbine steam-cooled rotor.  United States.

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                    Mashey, Thomas Charles. Tue .  
        "Axial seal system for a gas turbine steam-cooled rotor".  United States.  https://www.osti.gov/servlets/purl/874834.

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@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}

}

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Works referenced in this record:

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

Bannister, R. L.; Cheruvu, N. S.; Little, D. A.
Journal of Engineering for Gas Turbines and Power, Vol. 117, Issue 4
https://doi.org/10.1115/1.2815458

Advances in Steam Path Technology
journal, April 1996

Cofer, J. I.
Journal of Engineering for Gas Turbines and Power, Vol. 118, Issue 2
https://doi.org/10.1115/1.2816595

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

Abstract

Citation Formats

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

Advances in Steam Path Technology journal, April 1996

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

Advances in Steam Path Technology
journal, April 1996