Windmill generator apparatus

A windmill generator apparatus comprising:

• a plurality of windmill units, each windmill unit comprising:
• a duct possessing structure including a first annular floor and a first annular roof of prescribed inner and outer diameters, substantially horizontally disposed and spaced apart from each other by a prescribed distance, and a prescribed number of vertical stationary guiding partitions radially provided between said first floor and said first roof, a first space in the shape of a hollow cylinder being formed within the central portion of said duct possessing structure;
• a revolving body including a circular second floor and a circular second roof of outer diameters smaller than the outer diameter of the first space, the inner sides of said floor and of said second roof defining a smooth continuous surface with the inner sides of said first floor and of said first roof, and two duct-forming guide pillar members disposed between said second floor and said second roof symmetrically at the outer circumferential portions thereof taking as a plane of symmetry a plane that contains the diameters of said second floor and said second roof, each of said guide pillar members comprising a duct-blocking arcuate outer wall along the outer circumference of said second floor and said second roof, and a duct-forming curved inner wall connecting both side edges of said arcuate outer wall, said revolving body being adapted for rotation within said first space on an axis coaxial therewith;
• and
• a windmill supported for rotation within a second hollow space, defined by said second floor, said second roof and by said two guide pillar bers of said revolving body, and on an axis which is the central axis of said second hollow space;
• said plurality of windmill units being stacked coaxially and so arranged as to align the axis of rotation of each said windmill in the same direction;
• said duct possessing structures being integrated to form a unitary structure;
• said revolving bodies being integrated to form a unitary structure;
• a rotational generator rotated by said windmills;
• and
• wind directional means for turning the unitary structure of said revolving bodies so as to point said unitary structure in the windward direction.