Ceramic blade attachment system

Patent · Sun Jan 01 04:00:00 EST 1995

OSTI ID:869968

Shaffer, James E ^[1]

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1. Maitland, FL

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.

• Research Organization: Solar Turbines Inc
• DOE Contract Number: AC02-92CE40960
• Assignee: Solar Turbines Incorporated (San Diego, CA)
• Patent Number(s): US 5431541
• OSTI ID: 869968
• Country of Publication: United States
• Language: English

Related Subjects

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aligned
assembly
attached
attachment
balls
blade
blade attachment
blades
ceramic
ceramic blade
defined
defined therein
defining
disc
equal
expansion
flanges
formed
formed therebetween
forms
grooves
pair
plurality
portion
portion defining
positioned
preestablished
preestablished rate
rate
root
root portion
space
spherical
spherical ball
therebetween
therein
thermal
thermal expansion
turbine
turbine assembly
turbine blade
turbine blades