Engine shaft balance assembly

Details Engine shaft balance assembly Engine shaft balance assembly

1990-12-17

1993-04-27

Friedman, Carl D.

Machine element or mechanism

Elements

Flywheel, motion smoothing-type

464180, F16F 1532

Patent

active

052051897

ABSTRACT:
A balancing assembly for a gas turbine hollow drive shaft is disclosed. The balance assembly includes an expandable balance weight carrier and means for expanding the carrier inside the hollow drive shaft. In a preferred embodiment the carrier comprises a split ring with a plurality of apertures at which balance weights can be received. Combinations of balance weights can be located around the carrier ring to establish an imbalance correction on the carrier. The carrier can then be positioned inside the shaft and expanded against the shaft with the imbalance correction directed opposite the shaft imbalance.

REFERENCES:
patent: 404608 (1889-06-01), Dronsfield
patent: 1352005 (1920-09-01), Larson
patent: 2702995 (1955-03-01), Biedess
patent: 2895766 (1959-07-01), Leopold, Jr.
patent: 3838464 (1974-08-01), Doyle
patent: 4023438 (1977-05-01), Birkle et al.
patent: 4512681 (1985-04-01), Hayhurst et al.
patent: 4624597 (1986-11-01), Johnson et al.
patent: 4842485 (1989-06-01), Barber

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