Wind-power unit, a supporting pillar therefore and a use thereof
AssigneeVertical Wind AB
InventorsMats Leijon, Hans Bernhoff
Life of this patent
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Abstract
The invention relates to a wind-power unit having a turbine having a vertical turbine shaft (3), an electrical generator (6) connected to the turbine and a vertical hollow supporting pillar (2) supporting the turbine. According to the invention the material of the supporting pillar is in all essentials wood. The invention also relates to a supporting pillar for such a wind-power unit, an electric mains connected to the wind-power unit, a use of the wind-power unit and a method for the manufacture of such a supporting pillar.
Claims11
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.
A supporting pillar for a wind-power unit with vertical shaft for generation of electrical energy which is hollow and made of wood and fiber material and includes laminated beams;
- comprising 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.
Dependencies are inferred from the claim text.