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US 9,567,971 B2Granted
Conical fan assembly for use in a wind turbine for the generation of power
OwnerClifford E. Bassettinventor
Life of this patent
Estimating the term…
Abstract
A conical fan assembly, having a generally conical support member having an exterior surface and a vertical major axis, and a plurality of generally crescent-shaped fan blades extending from the exterior surface of the support member, wherein the plurality of fan blades define a helix configured to urge a fluid to flow in a spiral flow pattern up and around the support member.
Claims12
A system to generate electricity using a flow of air, the system comprising:
- a plurality of vertical blades disposed radially along an outer circumference of a cylindrical blade drum, wherein the plurality of vertical blades encircle an internal volume;
- a conical fan disposed within the internal volume, the conical fan further comprising:
- a generally conical support member having an exterior surface, a major axis, a base, and a tip;
- and
- a plurality of generally sickle-shaped blades, each generally sickle-shaped blade attached to the exterior surface, wherein the plurality of generally sickle-shaped blades are positioned with a generally uniform orientation to define a helix for urging air to flow in a spiral pattern up and around the generally conical support member;
- a shaft disposed along the major axis, the shaft having a first end and a second end, the second end operationally connected to a generator, wherein rotation of the cylindrical blade drum or conical fan causes the generator to generate electricity;
- an internal fan positioned at or below the lower aperture, the internal fan capable of rotation to force a fluid along the major axis;
- wherein the conical support member is frustoconical, defining an upper aperture and a lower aperture.
5 more elements
A turbine assembly, the turbine assembly comprising:
- a plurality of vertical blades disposed radially along an outer circumference and defining a cylindrical blade drum having an internal volume;
- and
- a conical fan disposed within the internal volume, the conical fan comprising:
- a generally conical member having a base and an oppositely disposed tip, an exterior surface, and a major axis;
- and
- a plurality of blades extending from the exterior surface;
- wherein the plurality of fan blades define a helix for urging a fluid to flow in a generally laminar spiral flow pattern in the direction extending from the base toward the tip;
- wherein the conical fan and the cylindrical blade drum are capable of rotation about the major axis.
5 more elements
A conical fan assembly, comprising:
- a generally conical support member having an exterior surface and a vertical major axis;
- a plurality of generally crescent-shaped fan blades extending from the exterior surface of the support member, wherein the plurality of fan blades define a helix configured to urge a fluid to flow in a spiral flow pattern up and around the support member;
- an upper aperture and a lower aperture, the lower aperture having a larger diameter than the upper aperture;
- and
- an internal fan positioned at or below the lower aperture, the internal fan capable of rotation to force a fluid along the vertical major axis;
- wherein the support member is frustoconical and hollow.
3 more elements
Dependencies are inferred from the claim text.