Prime-mover dynamo plants – Fluid-current motors
Reexamination Certificate
2008-08-21
2010-12-21
Ta, Tho D (Department: 2839)
Prime-mover dynamo plants
Fluid-current motors
C290S043000
Reexamination Certificate
active
07855468
ABSTRACT:
A device and method for producing rotational mechanical power is disclosed which has a plurality of hinged blades attached to a central circular hub. The device may be used to convert the kinetic energy from the movement of the wind, ocean or river currents, or tidal flows into useful rotational mechanical power. The rotational mechanical power may be converted into electrical energy. Each of the plurality of blades are attached to the central circular hub via a hinge. Each blade is also fitted with a blade limiter to restrict its motion to no more than 90° relative range from the tangent line to the central hub at the point where the blade attaches to the hub. The hinges and blade limiters allow the blades to both present a surface automatically to the motive natural fluid and to generate the maximum torque in one side and minimum resistance torque positions in the opposite side relative to the motion of the motive stream. The resultant blades relative position creates a torque differential from one side of the central hub to the other causing the hub to rotate. The central hub will rotate in the same direction regardless of the direction of flow of the natural motive stream.
REFERENCES:
patent: 2008/0231057 (2008-09-01), Zeuner
Alexander David W.
Ta Tho D
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