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Title: Ceramic blade attachment system

Abstract

A turbine blade having a preestablished rate of thermal expansion is attached to a turbine disc having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade and forms a turbine assembly. The turbine blade has a root portion defining a pair of sides having a pair of grooves therein. The turbine assembly includes a pair of flanges between which the turbine blades are positioned. Each of the pair of flanges has a plurality of grooves defined therein. The grooves within the pair of flanges are aligned with the grooves in the blades and have a space formed therebetween. A plurality of spherical balls are positioned within the space. The plurality of spherical balls has a preestablished rate of thermal expansion being equal to the preestablished rate of thermal expansion of the turbine blade. 4 figs.

Inventors:
Publication Date:
Research Org.:
Solar Turbines Inc
OSTI Identifier:
87752
Patent Number(s):
US 5,431,541/A/
Application Number:
PAN: 8-159,094
Assignee:
Solar Turbines Inc., San Diego, CA (United States)
DOE Contract Number:  
AC02-92CE40960
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 11 Jul 1995
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; TURBINE BLADES; FASTENERS; CERAMICS; THERMODYNAMIC PROPERTIES; DESIGN; BALL BEARINGS; GAS TURBINES

Citation Formats

Shaffer, J E. Ceramic blade attachment system. United States: N. p., 1995. Web.
Shaffer, J E. Ceramic blade attachment system. United States.
Shaffer, J E. Tue . "Ceramic blade attachment system". United States.
@article{osti_87752,
title = {Ceramic blade attachment system},
author = {Shaffer, J E},
abstractNote = {A turbine blade having a preestablished rate of thermal expansion is attached to a turbine disc having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade and forms a turbine assembly. The turbine blade has a root portion defining a pair of sides having a pair of grooves therein. The turbine assembly includes a pair of flanges between which the turbine blades are positioned. Each of the pair of flanges has a plurality of grooves defined therein. The grooves within the pair of flanges are aligned with the grooves in the blades and have a space formed therebetween. A plurality of spherical balls are positioned within the space. The plurality of spherical balls has a preestablished rate of thermal expansion being equal to the preestablished rate of thermal expansion of the turbine blade. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {7}
}