Low thermal stress ceramic turbine nozzle

Patent · Sun Dec 31 23:00:00 EST 1995

OSTI ID:870312

Glezer, Boris ^[1]; Bagheri, Hamid ^[2]; Fierstein, Aaron R ^[2]

---

1. Del Mar, CA
2. San Diego, CA

A turbine nozzle vane assembly having a preestablished rate of thermal expansion is positioned in a gas turbine engine and being attached to conventional metallic components. The metallic components having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine nozzle vane assembly. The turbine nozzle vane assembly includes an outer shroud and an inner shroud having a plurality of vanes therebetween. Each of the plurality of vanes have a device for heating and cooling a portion of each of the plurality of vanes. Furthermore, the inner shroud has a plurality of bosses attached thereto. A cylindrical member has a plurality of grooves formed therein and each of the plurality of bosses are positioned in corresponding ones of the plurality of grooves. The turbine nozzle vane assembly provides an economical, reliable and effective ceramic component having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the other component.

• Research Organization: Solar Turbines Inc
• DOE Contract Number: AC02-92CE40960
• Assignee: Solar Turbines Incorporated (San Diego, CA)
• Patent Number(s): US 5494402
• OSTI ID: 870312
• Country of Publication: United States
• Language: English

Related Subjects

/415/
assembly
assembly provides
attached
attached thereto
bosses
ceramic
ceramic component
ceramic turbine
component
components
conventional
conventional metal
conventional metallic
cooling
corresponding
corresponding ones
cylindrical
device
economical
effective
engine
expansion
formed
formed therein
furthermore
gas
gas turbine
grooves
grooves formed
heating
inner
inner shroud
metallic
metallic component
metallic components
nozzle
nozzle vane
ones
outer
outer shroud
plurality
portion
positioned
preestablished
preestablished rate
provides
rate
reliable
shroud
stress
therebetween
therein
thereto
thermal
thermal expansion
thermal stress
turbine
turbine engine
turbine nozzle
vane
vane assembly
vanes