Ceramic turbine stator vane and shroud support

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863779

Glenn, Robert G ^[1]

---

1. Lower Moreland Township, Montgomery County, PA

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.

• Research Organization: Westinghouse Electric Corp., Concordville, PA
• DOE Contract Number: EF-77-C-01-2786
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 4245954
• OSTI ID: 863779
• Country of Publication: United States
• Language: English

Related Subjects

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/