Fluid reaction surfaces (i.e. – impellers) – Combined or convertible – Hub lubrication or seal
Patent
1997-08-15
2000-01-18
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
Combined or convertible
Hub lubrication or seal
416205, 416207, 416209, 416174, 384517, 384540, B64C 1106
Patent
active
060152648
ABSTRACT:
A propeller blade retention assembly for use with a propeller having a hub rotatable about a propeller axis, is disclosed. The assembly includes a blade receiver for mounting the blade to the hub and an internal surface of a hub arm for interfacing the receiver with the hub. The receiver is positioned in the hub arm and is non-integral with the blade and the hub arm internal surface. A retention mechanism is used for retaining the blade receiver to the hub arm while allowing relative rotatable motion therebetween. A preload device is provided for preloading the retention mechanism prior to centrifugal loading during propeller blade operation. The blade is separable from the blade receiver without disturbing the operability of the retention mechanism.
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patent: 5415527 (1995-05-01), Godwin
Corley Thomas G.
Soule Matthew C.
Violette John A.
United Technologies Corporation
Verdier Christopher
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