Pre-stressed/pre-compressed gas turbine nozzle

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874498

Jang, Hoyle ^[1]; Itzel, Gary Michael ^[2]; Yu, Yufeng Phillip ^[3]

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1. Schenectady, NY
2. Clifton Park, NY
3. Guilderland, NY

A method of increasing low cycle fatigue life of a turbine nozzle comprising a plurality of stationary airfoils extending between radially inner and outer ring segments comprising a) providing at least one radial passage in each of the plurality of airfoils; b) installing a rod in the radial passage extending between the radially inner and outer ring segments and fixing one end of the rod to one of the inner and outer rings; and c) pre-loading the rod to compress the airfoil between the inner and outer ring segments.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6402463
• OSTI ID: 874498
• Country of Publication: United States
• Language: English

Related Subjects

pre-stressedpre-compressed
gas
turbine
nozzle
method
increasing
cycle
fatigue
life
comprising
plurality
stationary
airfoils
extending
radially
inner
outer
segments
providing
radial
passage
installing
rod
fixing
rings
pre-loading
compress
airfoil
gas turbine
turbine nozzle
radially inner
fatigue life
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