Wind powered generator with multiple rotors - mounted in circular ducts with square cross section entrances

摘要

A rotor is mounted in a circular duct which gradually changes to a square cross-section at the duct entrance. These assemblies of ducts and rotors are assembled in horizontal rows and a large number of rows mounted one on another in a supporting frame and thus forming a large tower. The tower is mounted on a rotatable base so that the duct entrances face the wind. The base may be supported on rollers or float on water. This method of construction permits the use of standard components in large number and so reduces the cost of construction.