Dual rotor wind turbine

Details Dual rotor wind turbine Dual rotor wind turbine

2005-09-20

2005-09-20

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for controlling casing or flow guiding means in...

Natural fluid current force responsive

C415S004500, C415S061000, C415S069000, C415S908000, C416S124000, C416S1700HM, C416S19800R, C416S20100A

Reexamination Certificate

active

06945747

ABSTRACT:
A dual rotor wind turbine according to the present invention includes a rotatable drive shaft, a first rotor assembly connected to the drive shaft, a second independently-rotating rotor assembly coupled to the drive shaft rearward of the first rotor assembly, a first stage generator coupled to the drive shaft, a second stage generator operatively connected to the second rotor assembly, a housing wherein the generators are situated, a rotary base, and a tail. In use, the rotary base allows the tail to optimally position the rotors for collecting wind. Wind rotates the first rotor assembly, causing the drive shaft to rotate and operate the first stage generator. Wind passing through and directed off the first rotor assembly rotates the second rotor assembly, independent of the first rotor assembly, operating the second stage generator. The two stage generators are any combination of AC or DC electrical generators, pumps, and compressors.

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patent: 6278197 (2001-08-01), Appa
patent: 6533559 (2003-03-01), Hsieh
patent: 6856042 (2005-02-01), Kubota

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