Segmented inlet nozzle for gas turbine, and methods of installation

Patent · Tue Jan 01 04:00:00 EST 1985

OSTI ID:865304

Klompas, Nicholas ^[1]

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1. Scotia, NY

A gas turbine nozzle guide vane assembly is formed of individual arcuate nozzle segments. The arcuate nozzle segments are elastically joined to each other to form a complete ring, with edges abutted to prevent leakage. The resultant nozzle ring is included within the overall gas turbine stationary structure and secured by a mounting arrangement which permits relative radial movement at both the inner and outer mountings. A spline-type outer mounting provides circumferential retention. A complete rigid nozzle ring with freedom to "float" radially results. Specific structures are disclosed for the inner and outer mounting arrangements. A specific tie-rod structure is also disclosed for elastically joining the individual nozzle segments. Also disclosed is a method of assembling the nozzle ring subassembly-by-subassembly into a gas turbine employing temporary jacks.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 4492517
• OSTI ID: 865304
• Country of Publication: United States
• Language: English

Related Subjects

/415/416/
abutted
arcuate
arcuate nozzle
arrangement
arrangements
assembling
assembly
circumferential
complete
disclosed
edges
elastically
employing
float
form
formed
freedom
gas
gas turbine
guide
guide vane
included
individual
inlet
inlet nozzle
inner
installation
jacks
joined
joining
leakage
method
methods
mounting
mounting arrangement
mountings
movement
nozzle
nozzle guide
nozzle segment
nozzle segments
outer
overall
permits
prevent
prevent leakage
provides
radial
radial movement
radially
relative
relative radial
resultant
results
retention
rigid
secured
segmented
segments
specific
spline-type
stationary
structure
structures
subassembly-by-subassembly
temporary
tie-rod
turbine
turbine nozzle
vane
vane assembly