Patent ID: 8051625
Filing Date: 2011-11-08
Classification: F03D,F05B,F05C,Y02E,Y02P

Abstract:
1. A wind-power apparatus which comprises a hollow supporting pillar which, when vertically oriented, defines an upper end and a lower end and has a continuously decreasing horizontal cross-sectional area upwardly along a greater part of a height thereof, a first cross-sectional area at the lower end being several times larger than a cross-sectional area at the upper end and a first mean value of the cross-sectional area of a lower half thereof being greater than a second mean value of an upper half thereof, said hollow supporting pillar comprising a surrounding wooden side wall having a protective coating over an exterior surface thereof, said wooden side wall comprising a plurality of upwardly-extending elongated laminated wooden beams, each of said plurality of wooden beams having a trapezoidal cross-section and a portion which tapers in an upward direction, and said protective coating comprising a fibrous composite material, a turbine located at the upper end of said supporting pillar for rotation by wind, an electrical generator vertically located beneath the upper end of said supporting pillar, and a rotatable shaft which extends vertically from said turbine downwardly to said electrical generator.