Balance for rotating member

Details Balance for rotating member Balance for rotating member

1983-05-09

1984-10-16

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With weight-balancing means

416220R, 416500, F01D 510, F01D 532

Patent

active

044772262

ABSTRACT:
Dovetail spacers containing slots enable final balancing of a turbine or compressor rotor or wheel without employing grooves or drilling holes in the wheel itself. The spacers are installed in the normal fashion and, when final balancing is performed, appropriate weights are inserted into the slots in selected ones of the spacers. Fine tuning can be performed by drilling or grinding the weights. In one embodiment, the spacer is provided with a radial hole which joins an axial hole. After the turbine or compressor rotor is assembled, additional counterweight material can be added through the radial hole and then be held in place by suitable means such as a setscrew. In this embodiment, weights of suitable material can also be removed as necessary.

REFERENCES:
patent: 1360936 (1920-11-01), Guy
patent: 2613058 (1952-10-01), Atkinson
patent: 2843356 (1958-07-01), Hull
patent: 3181835 (1965-05-01), Davis
patent: 3297302 (1967-01-01), Spears
patent: 3395891 (1968-08-01), Burge et al.
patent: 3632228 (1972-01-01), Acres
patent: 3736811 (1973-06-01), Neary
patent: 3888601 (1975-06-01), Glassburn
patent: 3986779 (1976-10-01), Beckershoff

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