Rotor blade attachment

Details Rotor blade attachment Rotor blade attachment

1977-12-27

1980-03-04

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416241B, F01D 530

Patent

active

041915097

ABSTRACT:
A turbine wheel assembly having an improved blade attachment is disclosed. Techniques for increasing the low cycle fatigue life of the components forming the attachment are developed. In one specific embodiment a "fir tree" type attachment includes interlocking root teeth and disk teeth. Correspondingly, grooves accommodate the interlocking teeth. Each groove is contoured in a first region to a first radius and in a second region to a second radius.

REFERENCES:
patent: 2429215 (1947-10-01), Boestad

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