Patent ID: 6448668
Filing Date: 2002-09-10
Classification: B60K,B60L,F03D,F05B,Y02B,Y02E,Y02T

Abstract:
A wind mill (20) with vertical axis (30) adapted to be installed upon a foundation (24) at a certain elevation with respect to the ground (36), said wind mill comprising, in combination:a turbine (22) comprising a collection section (26) for wind, disposed over a circular tunnel floor (42), said collection section comprising a number of blades (32) disposed at an angle alpha (44), thereby leaving openings (46) between each said blade to cover the periphery of said floor (42) by said blades and said openings, said collection section defining an annular chamber adapted to receive wind passing through said openings; an annular buoy (50) mounted under said floor (42) and adapted to support said collection section (26) over a fluid (68), said buoy (50) comprising a centrally located cylindrical opening (51), a central shaft (30) disposed centrally of said cylindrical opening (51), said central shaft having a fore end (86) and an aft end (88), said fore end being mounted under said floor (42); a basin (66) mounted upon said foundation (24) and comprising an interior wall (52) and a central hub (54) and comprising, between said interior wall and said central hub, a fluid (68) to buoy said turbine (22); said central hub (54) installed in a space between said cylindrical opening (51) and said central shaft and comprising means to guide said central shaft (30); an output connected to said collection section (26) by means of said central shaft to transmit a rotating movement of said turbine to a piece of machinery (60).