Vortex propeller

摘要

The invention discloses at least one blade extending away from a beginning point and longitudinally along a central axis and approximating the shape of a spiral about said central axis. The blade comprises a beginning point disposed a first lateral distance away from the central axis and a terminating point disposed a second lateral distance away from the central axis, the second distance being greater than the first distance.

主权项

1. A propeller device for capturing wind energy, comprising:
at least one blade extending away from a beginning point near a central axis and extending longitudinally along the central axis, said blade approximating the shape of a spiral about said central axis and forming an open center about the central axis, wherein the beginning point is located in the downwind direction of wind flow with respect to a terminating point; wherein said blade comprises a first radius near the beginning point and a second radius near a terminating point, the first radius being smaller than the second radius; and wherein the central axis is disposed horizontal to a ground surface.