Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment
Patent
1988-10-07
1992-04-07
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
416131, 416134R, 416140, F03B 314
Patent
active
051023008
ABSTRACT:
A propeller or fan blade is rotatably mounted to a blade retention pitch member by a pin radially outside of a spinner. By mounting the propeller blade for rotation about the axis of the pin, the blade response to a vibratory excitation in a first mode of vibration is modified such that the twisting motion of the blade is minimized. High speed stability of the blade is enhanced thereby. Moreover a damaged blade may be easily replaced.
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Paper No. 66-WA/GT-4, Authors: J. I. Goatham and G. T. Smailes; "Some Vibration Characteristics of Pin-Fixed Compressor Blades", pp. 1 through 11. contributed by the Gas Turbine Division--presented at Winter Annual Meeting, New York, NY, 11/27-12/01/66.
Auyeung Sean
Nagle David P.
Violette John A.
Doigan Lloyd D.
Kwon John T.
United Technologies Corporation
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