Patent ID: 9726153
Date: 2017-08-08
CPC Classifications: E04B,E04C,E04H,F03D,F05B,Y02E

Claim:
1. A structural tower for a wind turbine assembly, the structural tower comprising: a base section securable to a foundation and extending between a lower end and an upper end, the base section having at least three lobes positioned about a central section, the at least three lobes tapering from the lower end of the base section to the upper end of the base section such that the lower end of the base section has a clover cross sectional shape and the upper end of the base section has a circular cross sectional shape; and an upper section extending from the base section for supporting the wind turbine assembly, the upper section extending between a lower end and an upper end, the lower end of the upper section having a cross sectional shape in register with the circular cross sectional shape of the upper end of the base section; wherein each said lobe comprises a convex wall extending between two longitudinal side edges, and two spaced apart side members extending along respective said longitudinal side edges inwardly towards the central section, and a support framework positioned in a lobe interior space defined by a respective said convex wall and respective said side members.