초록 ▼

A wind mill construction is disclosed, including a rigid tower structure (6, 7) to the upper end of which is connected for rotation about a vertical axis a wind turbine housing (5) to which is journalled for rotation about a horizontal axis a propeller (2) of the two-blade on three-blade type, chara

A wind mill construction is disclosed, including a rigid tower structure (6, 7) to the upper end of which is connected for rotation about a vertical axis a wind turbine housing (5) to which is journalled for rotation about a horizontal axis a propeller (2) of the two-blade on three-blade type, characterized in that a strip member (8) extends generally helically about the tower structure for counteracting the effects of wind upon the tower and the blades. The strip may be mounted on the upper portion of a tower the base portion of which has a frustoconical configuration. The pitch of the helical strip is preferably no greater than three times the maximum diameter of the upper tower portion.

대표청구항 ▼

A wind mill, comprising (a) a vertical rigid tower (6,7); (b) a wind turbine (5) connected with the upper end of said tower for rotation about a vertical axis; (c) a propeller (2) connected with the wind turbine for rotation about a horizontal axis, said propeller having at least two blades; and (d)

A wind mill, comprising (a) a vertical rigid tower (6,7); (b) a wind turbine (5) connected with the upper end of said tower for rotation about a vertical axis; (c) a propeller (2) connected with the wind turbine for rotation about a horizontal axis, said propeller having at least two blades; and (d) strip means (8) generally rectangular cross-sectional configuration extending generally helically about at least the upper portion of said tower, the longitudinal edges of said strip means being adjacent and remote from said tower, respectively, thereby to reduce the effects of the wind on the tower and on the propeller blades.