F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
170/5
F03D 7/06 (2006.01)
Patent
CA 1286995
ABSTRACT OF THE DISCLOSURE A cross-wind, axis-type, wind turbine is provided herein, which includes four wind driven airfoil blades pivotally con- nected between upper and lower sets of support spokes supported on a rotating vertical column so that the blades are upwardly inclined towards the column axis to produce an accelerated down- wardly swirling air flow in the turbine interior. The lower spokes are airfoil-shaped to draw wind into the turbine further to accelerate the air flow in the turbine for improved blade efficiency. A feedback control arrangement, which is responsive to changes in wind speed or direction, adjusts the blade angles to the wind for optimum efficiency by virtue of a rack and pinion assembly connecting each blade to a center plate through con- necting rods extending radially through each upper spoke. The center plate is mounted within the column on a control shaft that includes an offset portion that pivots during blade rotation about the column, or when rotated by a wind vane, to vary the radial positions of the plate and thereby the blades through the rack connections. Alternatively, a pair of weights radially movable within the lower spokes by centrific force in response to variations in wind velocity can be connected to pivot the control shaft to adjust the blade angles. Each blade includes a series of troughs formed equispaced to each other along the blade length that are respectively tapered towards the leading edge to cause wind entering the troughs to diverge and decelerate for maximum wind energy transfer to the blades.
572456
Danson David Paul
Marcus & Associates
Wind Feather United Science Association
LandOfFree
Vertical axis wind turbine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vertical axis wind turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical axis wind turbine will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1323428