Hydroelectric turbine
AssigneeThe Fish Friendly Hydropower Company Limited
InventorsHenry Reilly-Collins, Richard Tate, James Jones, Jack Dunkley
Life of this patent
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Abstract
A floating turbine system comprising a turbine comprising a central cylinder comprising a curved cylindrical surface, a first end face and a second end face opposite the first end face, wherein the first end face and the second end face are joined by a the curved cylindrical surface, and wherein the central cylinder has a sealed inner cavity; a plurality of helical vanes disposed on outer side of the curved cylindrical surface; wherein channels are formed between each of the plurality of helical vanes; and wherein the channels are configured to allow fish to pass along the channels.
Claims14
A floating turbine system comprising a turbine comprising:
- a central cylinder comprising a curved cylindrical surface, a first end face and a second end face opposite the first end face, wherein the first end face and the second end face are joined by the curved cylindrical surface, and wherein the central cylinder has a sealed inner cavity;
- a plurality of helical vanes disposed on an outer side of the curved cylindrical surface;
- wherein channels are formed between each of the plurality of helical vanes;
- characterized in that the channels are configured to allow fish to pass along the channels, and in that a maximum radial extension of the first end face and a maximum radial extension of the second end face are greater than the radius of the curved cylindrical surface;
- and wherein gaps are provided in an outer circumference of the first end face and an outer circumference of the second end face, wherein the gaps are configured to allow, in use, fish in the channels to exit through the gaps.
A method for manufacturing a turbine system comprising:
- forming a central cylinder by polymer fabrication, wherein the central cylinder comprises a curved cylindrical surface, a first end face and a second end face opposite the first end face, wherein the first end face and the second end face are joined by the curved cylindrical surface, and wherein the central cylinder has an inner cavity;
- forming a plurality of helical vanes by polymer fabrication;
- welding the plurality of helical vanes to an outer side of the curved cylindrical surface;
- wherein channels are formed between each of the plurality of helical vanes which allow fish to pass along the channels;
- characterized by:
- forming a maximum radial extension of the first end face and a maximum radial extension of the second end face to be greater than the radius of the curved cylindrical surface;
- and
- forming gaps in an outer circumference of the first end face and an outer circumference of the second end face to be configured to allow, in use, fish in the channels to exit through the gaps.
Dependencies are inferred from the claim text.