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1. (WO2010117872) COAXIAL WIND TURBINE

Pub. No.:    WO/2010/117872    International Application No.:    PCT/US2010/029610
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Fri Apr 02 01:59:59 CEST 2010
IPC: F03D 11/02
F03D 1/00
Applicants: BITAR, Peter, V.
Inventors: BITAR, Peter, V.
Title: COAXIAL WIND TURBINE
Abstract:
Disclosed is a gearbox with two driver gears that are phase shifted 180 degrees with respect to a driven gear so that counter-rotation of the driver gears combine to rotate the driven gear together. The gearbox can be used to couple a counter-rotating, coaxial wind turbine rotors by coupling the driver gears to the counter-rotating rotors and the driven gear to a generator so that the counter-rotating rotors on the wind turbine rotate the driven gear in the same direction. The driven gear can be coupled to a generator to produce electricity.