Ceramic blade attachment system

Details Ceramic blade attachment system Ceramic blade attachment system

1993-11-29

1995-04-11

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received by continuous circumferential channel

416241B, F01D 530

Patent

active

054052459

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 wheel includes a pair of side walls having a groove formed therebetween and a pair of axially aligned holes radially positioned therein. The turbine blade has a root portion having a bore positioned therein. A pin having a preestablished rate of thermal expansion being substantially equal to the rate of thermal expansion of the blade is positioned within the axially aligned holes and the bore attaches the blade to the turbine wheel.

REFERENCES:
patent: 2821357 (1958-01-01), Schorner
patent: 2944787 (1960-07-01), Gingras
patent: 3400912 (1968-09-01), Carta et al.
patent: 3850547 (1974-11-01), Canova et al.
patent: 4094615 (1978-06-01), Glenn
patent: 4111603 (1978-09-01), Stahl
patent: 4802824 (1989-02-01), Gastebois et al.
patent: 5031400 (1991-07-01), Boyd
patent: 5100296 (1992-03-01), Partington

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