发明名称 WIND POWERED APPARATUS HAVING COUNTER ROTATING BLADES
摘要 A wind powered apparatus (or wind turbine) having two sets of counter rotating blades. Both sets of blades are connected to an alternator and are operable to rotate the stator and rotor thereof in opposite directions relative to one another, thereby doubling their relative speed. The apparatus is equipped with a conical front nose piece having a blunt tip that co-operates with the first and second sets of blades to improve performance of the apparatus by affecting its orientation and the rotational speed of the blades.
申请公布号 ZA201103373(B) 申请公布日期 2012.01.25
申请号 ZA20110003373 申请日期 2011.05.09
申请人 BIRO AIR ENERGY INC 发明人 MARCHAND HAROLD
分类号 F03D;H02K 主分类号 F03D
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