Vortex energy recovery turbine

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United States of America Patent

PATENT NO 9709024
SERIAL NO

13860493

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Abstract

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A free stream fluid kinetic energy conversion device combines a large diameter freewheeling primary rotor with small diameter secondary power takeoff rotors placed within the lift induced blade tip vortices of the primary rotor. This enables use of high rotational speed generating units and avoids diseconomy of scale in gearbox expense. The device partially recovers otherwise lost blade tip vortex energy. The freewheeling primary rotor transmits no reaction torque to the support structure. Resilient buoyant tether deployment accommodates transient eddy induced structural loads.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duke, John Hincks Providence, US 12 52

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