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US 11,143,163 B2Granted
Vertical axis wind turbine
AssigneeSemtive Inc.
InventorIgnacio Juarez
Life of this patent
Estimating the term…
Abstract
The present device is a vertically oriented wind turbine blade having a rectangular simple curvilinear shaped blade, which includes a top edge, a bottom edge, an outer edge, an inner edge, an inner surface and an outer surface. The blade is curved using a series of bent section to approximate as airfoil shape from the inner edge to the outer edge (relative to the turbine center or hub).
Claims30
An airfoil for use as in a wind turbine comprising:
- a rectangular blade shaped for a vertical axis wind turbine, the blade comprising one or more sheets of material including a top edge, a bottom edge, an outer edge, an inner edge, an inner surface and an outer surface wherein the blade comprises a plurality of segments, adjacent segments comprising a bend therebetween extending from the top edge to the bottom edge, the blade comprising at least three bends, wherein the blade approximates an airfoil shape without any internal structure, the blade comprising a leading edge and a trailing edge, the leading edge comprising a portion of the outer surface including the inner edge, and the trailing edge comprising a portion of the outer surface including the outer edge, wherein the leading edge comprises more bend segments than the trailing edge.
A wind turbine blade comprising:
- a blade comprising a top edge, a bottom edge, an outer edge, an inner edge wherein the blade comprises a plurality of bends or curves extending from the top edge to the bottom edge, and a plurality of bend segments, adjacent bend segments comprising curves or a bend therebetween, the plurality of bend segments forming an airfoil shape, the blade lacking any internal structure, the blade comprising a leading edge, a trailing edge, and a midsection, the leading edge comprising a portion of the blade including the inner edge, the trailing edge comprising a portion of the blade including the outer edge, and the midsection comprising a portion of the blade between the inner edge and the trailing edge, wherein the leading edge comprises more bend segments than the trailing edge.
A method for producing a wind turbine blade comprising
- providing a sheet of material having a top edge, a bottom edge, an outer edge, an inner edge, an inner surface and an outer surface;
- and
- forming at least three bends extending from the top edge to the bottom edge so that the bent sheet of material approximates an airfoil shape without any internal structure.
A method of manufacturing one or more blades for a wind turbine, comprising
- selecting a sheet of material having a length and width sized for producing a wind turbine blade having a blade height approximately equal to the length of the sheet and a blade width about 50-90% of the width of the sheet;
- creating a series of at least one of bends and curves positioned along the width of the sheet and extending along the length of the material in the sheet of material to form a leading edge of the turbine blade in the sheet of material and such that the blade approximates an airfoil shape;
- and
- repeating the selecting and creating until a desired number of blades are formed.
1 more element
Dependencies are inferred from the claim text.