BIROTARY WINDMILL Russian patent published in 2009 - IPC F03D9/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to power engineering, particularly windmills designed to charge storage batteries and to supply various loads at structures that have no power supply lines. Birotary windmill comprises two windwheels, running in opposite direction, stationary stator solenoid-type winding wound around circular core made from ferromagnetic material and fixed in the housing. It comprises also non-magnetic material disk-like rotors arranged coaxially. Equal number of L-shape permanent magnets is distributed on each rotor. Note that poles of magnets of each rotor feature identical polarity, while those of the magnets of different rotors feature opposed polarity. Every permanent magnet poles can revolve about half of the winding not fixed in the housing. Every rotor is linked up with wind wheel via rotor shaft running in the housing bearings.

EFFECT: simplified design; smaller sizes and mechanical losses; higher reliability.

3 dwg