Cooling supply system for stage 3 bucket of a gas turbine

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874472

Eldrid, Sacheverel Quentin ^[1]; Burns, James Lee ^[2]; Palmer, Gene David ^[3]; Leone, Sal Albert ^[4]; Drlik, Gary Joseph ^[5]; Gibler, Edward Eugene ^[6]

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1. Saratoga Springs, NY
2. Schenectady, NY
3. Clifton Park, NY
4. Scotia, NY
5. Fairfield, OH
6. Cincinnati, OH

In a land based gas turbine including a compressor, a combustor and turbine section including at least three stages, an improvement comprising an inlet into a third stage nozzle from the compressor for feeding cooling air from the compressor to the third stage nozzle; at least one passageway running substantially radially through each airfoil of the third stage nozzle and an associated diaphragm, into an annular space between the rotor and the diaphragm; and passageways communicating between the annular space and individual buckets of the third stage.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6397604
• OSTI ID: 874472
• Country of Publication: United States
• Language: English

Related Subjects

cooling
supply
stage
bucket
gas
turbine
land
based
including
compressor
combustor
section
stages
improvement
comprising
inlet
third
nozzle
feeding
air
passageway
running
substantially
radially
airfoil
associated
diaphragm
annular
space
rotor
passageways
communicating
individual
buckets
gas turbine
cooling air
turbine section
third stage
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