Ceramic blade attachment system

Details Ceramic blade attachment system Ceramic blade attachment system

1993-11-29

1994-12-13

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416219R, F01D 530

Patent

active

053724810

ABSTRACT:
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.

REFERENCES:
patent: 2430185 (1947-11-01), Prescott
patent: 2651494 (1953-09-01), Persson
patent: 3014695 (1961-12-01), Rankin et al.

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