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Title: Ceramic turbine stator vane and shroud support

Abstract

A support system for supporting the stationary ceramic vanes and ceramic outer shrouds which define the motive fluid gas path in a gas turbine engine is shown. Each individual segment of the ceramic component whether a vane or shroud segment has an integral radially outwardly projecting stem portion. The stem is enclosed in a split collet member of a high-temperature alloy material having a cavity configured to interlock with the stem portion. The generally cylindrical external surface of the collet engages a mating internal cylindrical surface of an aperture through a supporting arcuate ring segment with mating camming surfaces on the two facing cylindrical surfaces such that radially outward movement of the collet relative to the ring causes the internal cavity of the collet to be reduced in diameter to tightly engage the ceramic stem disposed therein. A portion of the collet extends outwardly through the ring segment opposite the ceramic piece and is threaded for receiving a nut and a compression washer for retaining the collet in the ring segment under a continuous biasing force urging the collet radially outwardly.

Inventors:
 [1]
  1. (Lower Moreland Township, Montgomery County, PA)
Issue Date:
Research Org.:
Westinghouse Electric Corp., Concordville, PA
OSTI Identifier:
863779
Patent Number(s):
4245954
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA) OSTI
DOE Contract Number:  
EF-77-C-01-2786
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ceramic; turbine; stator; vane; shroud; support; supporting; stationary; vanes; outer; shrouds; define; motive; fluid; gas; path; engine; shown; individual; segment; component; integral; radially; outwardly; projecting; portion; enclosed; split; collet; high-temperature; alloy; material; cavity; configured; interlock; cylindrical; external; surface; engages; mating; internal; aperture; arcuate; camming; surfaces; facing; outward; movement; relative; causes; reduced; diameter; tightly; engage; disposed; therein; extends; opposite; piece; threaded; receiving; nut; compression; washer; retaining; continuous; biasing; force; urging; outer shroud; external surface; cylindrical surface; ceramic component; turbine engine; gas turbine; disposed therein; radially outwardly; radially outward; motive fluid; alloy material; internal cavity; shroud segment; stator vane; extends outwardly; cylindrical surfaces; gas path; ceramic vanes; ceramic turbine; shroud support; outer shrouds; extends outward; cylindrical external; turbine stator; ceramic vane; temperature alloy; /415/

Citation Formats

Glenn, Robert G. Ceramic turbine stator vane and shroud support. United States: N. p., 1981. Web.
Glenn, Robert G. Ceramic turbine stator vane and shroud support. United States.
Glenn, Robert G. Thu . "Ceramic turbine stator vane and shroud support". United States. https://www.osti.gov/servlets/purl/863779.
@article{osti_863779,
title = {Ceramic turbine stator vane and shroud support},
author = {Glenn, Robert G.},
abstractNote = {A support system for supporting the stationary ceramic vanes and ceramic outer shrouds which define the motive fluid gas path in a gas turbine engine is shown. Each individual segment of the ceramic component whether a vane or shroud segment has an integral radially outwardly projecting stem portion. The stem is enclosed in a split collet member of a high-temperature alloy material having a cavity configured to interlock with the stem portion. The generally cylindrical external surface of the collet engages a mating internal cylindrical surface of an aperture through a supporting arcuate ring segment with mating camming surfaces on the two facing cylindrical surfaces such that radially outward movement of the collet relative to the ring causes the internal cavity of the collet to be reduced in diameter to tightly engage the ceramic stem disposed therein. A portion of the collet extends outwardly through the ring segment opposite the ceramic piece and is threaded for receiving a nut and a compression washer for retaining the collet in the ring segment under a continuous biasing force urging the collet radially outwardly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

Patent:

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