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Title: Segmented inlet nozzle for gas turbine, and methods of installation

Abstract

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.

Inventors:
 [1]
  1. Scotia, NY
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
865304
Patent Number(s):
4492517
Assignee:
General Electric Company (Schenectady, NY)
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
segmented; inlet; nozzle; gas; turbine; methods; installation; guide; vane; assembly; formed; individual; arcuate; segments; elastically; joined; form; complete; edges; abutted; prevent; leakage; resultant; included; overall; stationary; structure; secured; mounting; arrangement; permits; relative; radial; movement; inner; outer; mountings; spline-type; provides; circumferential; retention; rigid; freedom; float; radially; results; specific; structures; disclosed; arrangements; tie-rod; joining; method; assembling; subassembly-by-subassembly; employing; temporary; jacks; radial movement; nozzle segments; prevent leakage; relative radial; turbine nozzle; inlet nozzle; nozzle guide; gas turbine; vane assembly; guide vane; mounting arrangement; nozzle segment; arcuate nozzle; /415/416/

Citation Formats

Klompas, Nicholas. Segmented inlet nozzle for gas turbine, and methods of installation. United States: N. p., 1985. Web.
Klompas, Nicholas. Segmented inlet nozzle for gas turbine, and methods of installation. United States.
Klompas, Nicholas. Tue . "Segmented inlet nozzle for gas turbine, and methods of installation". United States. https://www.osti.gov/servlets/purl/865304.
@article{osti_865304,
title = {Segmented inlet nozzle for gas turbine, and methods of installation},
author = {Klompas, Nicholas},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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