Self-adjusting variable pitch propeller

Details Self-adjusting variable pitch propeller Self-adjusting variable pitch propeller

1997-06-16

1998-12-22

Sotelo, Jesus D.

Marine propulsion

Screw propeller

Variable pitch

416140, B63H 300

Patent

active

058511318

ABSTRACT:
A self-adjusting, variable pitch propeller comprising: a central hub defining a propeller rotation axis; a plurality of blade assemblies symmetrically disposed about the hub, each assembly having a substantially cylindrical segment with a propeller blade fast therewith and defining a leading blade edge, each blade assembly being pivotally attached to the hub adjacent the leading edge of the blade of that assembly, a support means interconnecting each assembly and the hub at a location remote from the pivotal attachment to permit controlled blade pitch adjustment to occur as a function of the magnitude of opposed hydrodynamic and centrifugal forces acting on the assemblies by pivotal movement of each assembly, about its the pivotal attachment, both circumferentially and radially relative to the axis.

REFERENCES:
patent: 5240406 (1993-08-01), Speer
patent: 5494406 (1996-02-01), Takada et al.

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