Axial seal system for a gas turbine steam-cooled rotor

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874834

Mashey, Thomas Charles ^[1]

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1. Anderson, SC

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.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6471478
• OSTI ID: 874834
• Country of Publication: United States
• Language: English

Related Subjects

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
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