Patent attributes
A vertical axis wind turbine system includes a vertical shaft rotatably mounted about a vertical axis and an upper platen coupled to the vertical shaft. Vanes are coupled to the vertical shaft and extend downward from the upper platen. Each vane has a concave face and an opposing convex face. A lower platen is coupled to the vertical shaft and to each vane. The lower platen has an opening formed therein proximate to the concave face of each vane. A plenum is disposed below the vertical axis wind turbine and is rotatably mounted about the shaft for rotation about the vertical axis. The plenum includes a top portion disposed proximate to the lower platen and has an outlet port therein. The outlet port is in fluid communication with at least one of the lower platen openings. A plenum passage provides fluid communication between a plenum inlet and the outlet port.
