Vibratory tuning of rotatable blades for elastic fluid machines

Details Vibratory tuning of rotatable blades for elastic fluid machines Vibratory tuning of rotatable blades for elastic fluid machines

1977-01-26

1978-08-22

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

416500, F01D 510

Patent

active

041085736

ABSTRACT:
Rotatable blades are tuned by forming a plurality of ribs on concave air foil surfaces of the blades adjacent trailing edges in longitudinal alignment with the fluid flow.

REFERENCES:
patent: 1861065 (1932-05-01), Poot
patent: 2238749 (1941-04-01), Peltier
patent: 2532753 (1950-12-01), Beman
patent: 2650752 (1953-09-01), Hoadley
patent: 2899128 (1959-08-01), Vaghi
patent: 3193185 (1965-07-01), Erwin et al.
patent: 3572962 (1971-03-01), Embleton et al.
patent: 3776363 (1973-12-01), Kuethe

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