Wind Turbine
AssigneeEnturi Limited
InventorsAlex Shakeshaft, Stuart Roberts
Life of this patent
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Abstract
The invention provides for a turbine, which includes a duct that may provide an elongate circular internal passage that may have an open upstream end forming an intake and an open downstream end forming an exhaust. The turbine may further include a turbine rotor that may be rotatably mounted in and coaxially with the internal passage and may have at least one rotor blade extending helically along the internal passage so that airflow through the internal passage from the intake to the exhaust may impinge on the rotor blade and may drive the turbine rotor to turn. The duct may further provide at least one intermediate inlet disposed between the intake and the exhaust and part way along the rotor blade.
Claims14
A turbine driven by at least one of air and water, the turbine comprising:
- a duct having an internal surface which forms an elongate circular internal passage having an open upstream end and an open downstream end, wherein the open upstream end forms an intake, and wherein the open downstream end forms an exhaust;
- and
- a turbine rotor rotatably mounted in and coaxially with the elongate circular internal passage;
- wherein the turbine rotor comprises at least one rotor blade;
- wherein the at least one rotor blade extends helically along the elongate circular internal passage so that flow through the elongate circular internal passage from the intake to the exhaust impinges on the at least one rotor blade and drives the turbine rotor to turn;
- wherein the at least one rotor blade has outer edges which lie adjacent to the internal surface of the duct;
- wherein the duct comprises at least one intermediate inlet disposed between the intake and the exhaust and part way along the at least one rotor blade;
- and
- wherein the at least one intermediate inlet communicates with the elongate circular internal passage so that flow through the at least one intermediate inlet augments flow through the elongate circular internal passage.
Dependencies are inferred from the claim text.