Propellor blade adjustment system for propulsion through...

Details Propellor blade adjustment system for propulsion through... Propellor blade adjustment system for propulsion through...

2006-09-05

2006-09-05

Olson, Lars A. (Department: 3617)

Marine propulsion

Screw propeller

Variable pitch

C416S023000

Reexamination Certificate

active

07101237

ABSTRACT:
The stern end of a seawater hull has a rotor hub with propeller blades thereon. The rotor hub is rotated for propulsion of the hull by means of a propeller shaft extending through a sealed compartment within the hull. Such sealed compartment and an electrically powered control system is disposed within the hull to automatically adjust angular deflection of deformable tip portions of the propeller blades by means of blade embedded actuators, in response to varying input signals which respectively reflect changes in seawater conditions such as temperature and strain imposed on the propeller blades during propelling rotation of the rotor hub.

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patent: 6340290 (2002-01-01), Schott et al.
patent: 6669444 (2003-12-01), Alacqua et al.
patent: 6776580 (2004-08-01), Fink et al.

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