Ceramic blade attachment system

Patent · Sun Jan 01 00:00:00 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

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/