Ceramic blade attachment system

Patent · Sat Jan 01 04:00:00 EST 1994

OSTI ID:869641

Boyd, Gary L ^[1]

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1. Alpine, CA

A turbine blade having a preestablished rate of thermal expansion is attached to a turbine wheel having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade. The turbine blade has a root portion having a pair of recessed portions thereon. The turbine wheel includes a plurality of openings in which the turbine blade is positioned. Each of the openings have a pair of grooves therein in which are positioned a pair of pins having a generally rectangular cross-section and a reaction surface thereon. A pair of cylindrical rollers interposed respective ones of the pair of reaction surfaces and the pair of recessed portions. The attachment system or turbine assembly provides an economical, reliable and effective attachment of a component having a preestablished rate of thermal expansion to a component having a greater preestablished rate of thermal expansion.

• Research Organization: Solar Turbines Inc
• DOE Contract Number: AC02-92CE40960
• Assignee: Solar Turbine Incorporated (San Diego, CA)
• Patent Number(s): US 5372481
• OSTI ID: 869641
• Country of Publication: United States
• Language: English

Related Subjects

/416/
assembly
assembly provides
attached
attachment
blade
blade attachment
ceramic
ceramic blade
component
cross-section
cylindrical
cylindrical rollers
economical
effective
expansion
grooves
interposed
ones
openings
pair
pins
plurality
portion
portions
positioned
preestablished
preestablished rate
provides
rate
reaction
recessed
rectangular
rectangular cross-section
reliable
respective
respective ones
rollers
root
root portion
surface
surface thereon
surfaces
therein
thereon
thermal
thermal expansion
turbine
turbine assembly
turbine blade
turbine wheel
wheel