Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Patent
1988-07-07
1990-05-29
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Impeller rotation speed responsive
416 43, 416139, B63H 310
Patent
active
049291530
ABSTRACT:
There is provided a self-actuating, variable pitch propeller having a plurality of blades. All of the blades are automatically movable between a first, relatively lower pitch position and a second, relatively higher pitch position, substantially simultaneously and equally in response to achieving a predetermined combination of propeller rotational speed and hydrodynamic loading on the propeller blades. The blades are releasably locked to prevent the pivoting of each blade when in the locked position. The locking means are released by actuating means activated by the combined effects of centrifugal force and hydrodynamic loading.
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Magidoff Barry G.
Nautical Development, Inc.
Powell Jr. Everette A.
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