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Title: Ceramic blade attachment system

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.
Inventors:
 [1]
  1. (Maitland, FL)
Issue Date:
OSTI Identifier:
869968
Assignee:
Solar Turbines Incorporated (San Diego, CA) CHO
Patent Number(s):
US 5431541
Contract Number:
AC02-92CE40960
Research Org:
Solar Turbines Inc
Country of Publication:
United States
Language:
English
Subject:
ceramic; blade; attachment; turbine; preestablished; rate; thermal; expansion; attached; disc; forms; assembly; root; portion; defining; pair; grooves; therein; flanges; blades; positioned; plurality; defined; aligned; space; formed; therebetween; spherical; balls; equal; portion defining; turbine assembly; defined therein; blade attachment; formed therebetween; preestablished rate; turbine blade; thermal expansion; turbine blades; ceramic blade; root portion; spherical ball; /416/