Rotary shafts – gudgeons – housings – and flexible couplings for ro – Shafting – Particular vibration dampening or balancing structure
Patent
1996-04-19
1999-01-19
Dunn, Eileen A.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Shafting
Particular vibration dampening or balancing structure
74573R, 57135, 2425975, F16C 300
Patent
active
058608656
ABSTRACT:
A pneumatically operated autobalance arrangement includes a hub which connects a shaft with a driven rotational element. The hub is fitted with a plurality of circumferentially-acting bellows which move weights about the hub. The inflation state of each bellows is determined by an air gap, which varies in dimension depending upon the amount and location of an imbalance of the driven element. The pneumatic pressure can be generated by a turbine driven by the shaft. Force amplification is provided in another embodiment. Autobalance hubs can be stacked axially to provide two-plane dynamic balance.
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Dunn Eileen A.
Lockheed Martin Corporation
Meise W. H.
Young S. A.
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