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. 4 figs.
- Issue Date:
- OSTI Identifier:
- 87752
- Assignee:
- Solar Turbines Inc., San Diego, CA (United States) CHO; SCA: 421000; PA: EDB-95:119386; SN: 95001431608
- Patent Number(s):
- US 5,431,541/A/
- Application Number:
- PAN: 8-159,094
- Contract Number:
- AC02-92CE40960
- Resource Relation:
- Other Information: PBD: 11 Jul 1995
- Research Org:
- Solar Turbines Inc
- 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