Turbine rotor and blade configuration

Details Turbine rotor and blade configuration Turbine rotor and blade configuration

1977-01-06

1978-06-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Diverse impellers or working members

416228, 416500, F01D 510

Patent

active

040971929

ABSTRACT:
A rotor for compressors, turbines or the like and having a plurality of circumferentially-spaced blades in which every other blade is modified so that the average natural frequency of said modified blades differs from that of the other blades by at least 4% but by no more than 15% so as to reduce the maximum amplitude of turbine blade vibration.

REFERENCES:
patent: 1639247 (1927-08-01), Zoelly et al.
patent: 1970435 (1934-08-01), Sharp
patent: 2292072 (1942-08-01), Hanna et al.
patent: 2823895 (1958-02-01), Floroff
patent: 2916258 (1959-12-01), Klint
patent: 3058528 (1962-10-01), Hiersch
patent: 3347520 (1967-10-01), Owczarek
patent: 3536417 (1970-10-01), Stiefel et al.

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