Blade assembly

Details Blade assembly Blade assembly

1975-08-22

1977-02-15

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Resilient bias or mount

416221, 416248, 415156, F01D 700, F01D 1100

Patent

active

040079988

ABSTRACT:
An adjustable blade assembly for use in a rotary machine, such as a turbine or a compressor, wherein the airfoil is separable from the assembly at the blade platform. The airfoil is provided with a root which is seated within a complementary kerf formed within the platform. Each of the two sections is fabricated independently using standard machine tools, thereby eliminating the need of hand-forming, complex blade contours. In assembly, the airfoil is loosely supported within the platform whereby the stresses generated at resonant frequencies are highly damped.

REFERENCES:
patent: 2445154 (1948-07-01), Reed
patent: 2997274 (1961-08-01), Hanson
patent: 3313519 (1967-04-01), Jenson
patent: 3525574 (1970-08-01), Zerlauth
patent: 3652177 (1972-03-01), Loebel

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