Levogyrous type vertical-axis wind turbine or dextrorotatory type wind turbine output increasing device for use in e.g. airport, has wall whose part covers one fourth or three fourth of peripheral of cylinder from/to left of end of device

摘要

The device has a structure coaxial to a levogyrous type vertical-axis wind turbine, where the structure is made of panels, or circular, vertical, radial or rigid tubes or rods. A wall (2) is surrounded by the structure. A vertical part of the wall covers one fourth or three fourth of the peripheral of a cylinder of the wall from or to the left of one of ends of the device with reference diameter of any of cylinder revolution (3).