Low thermal stress ceramic turbine nozzle
Abstract
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.
- Inventors:
-
- Del Mar, CA
- San Diego, CA
- Issue Date:
- Research Org.:
- Solar Turbines Inc
- OSTI Identifier:
- 870312
- Patent Number(s):
- 5494402
- Assignee:
- Solar Turbines Incorporated (San Diego, CA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- DOE Contract Number:
- AC02-92CE40960
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- thermal; stress; ceramic; turbine; nozzle; vane; assembly; preestablished; rate; expansion; positioned; gas; engine; attached; conventional; metallic; components; outer; shroud; inner; plurality; vanes; therebetween; device; heating; cooling; portion; furthermore; bosses; thereto; cylindrical; grooves; formed; therein; corresponding; ones; provides; economical; reliable; effective; component; nozzle vane; attached thereto; turbine nozzle; outer shroud; assembly provides; metallic components; ceramic component; thermal stress; formed therein; preestablished rate; turbine engine; thermal expansion; gas turbine; vane assembly; inner shroud; metallic component; conventional metallic; ceramic turbine; grooves formed; corresponding ones; conventional metal; /415/
Citation Formats
Glezer, Boris, Bagheri, Hamid, and Fierstein, Aaron R. Low thermal stress ceramic turbine nozzle. United States: N. p., 1996.
Web.
Glezer, Boris, Bagheri, Hamid, & Fierstein, Aaron R. Low thermal stress ceramic turbine nozzle. United States.
Glezer, Boris, Bagheri, Hamid, and Fierstein, Aaron R. Mon .
"Low thermal stress ceramic turbine nozzle". United States. https://www.osti.gov/servlets/purl/870312.
@article{osti_870312,
title = {Low thermal stress ceramic turbine nozzle},
author = {Glezer, Boris and Bagheri, Hamid and Fierstein, Aaron R},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}