Underwater ducted turbine
First Claim
1. A hydro turbine generator apparatus for generating electrical power from water flow, said apparatus comprising at least one magnetic generator and characterized by:
- (a) at least one rotor disk adapted for immersed use in said water flow and comprising a plurality of blades rotatable about a central axis;
(b) a generally cylindrical housing defining a duct, said duct being proximate to the tips of said blades; and
(c) wherein said at least one magnetic generator is adapted for immersed use in said water flow and comprises a plurality of stators and a plurality of magnets, and wherein a space between said magnets and said stators of said at least one magnetic generator is unsealed.
1 Assignment
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Accused Products
Abstract
An apparatus is disclosed for a turbine for generating electrical power from water or air flow comprising at least one rotor disk having a plurality of hydrofoil blades, guide vanes, a cylindrical housing, and a generator means. A rim generator comprising a magnet race rotor rim and fixed stator coils in the housing is used. The apparatus is fitted with a screen to stop the ingress of debris and marine life, and a skirt augmenter device to reduce the Betz effect. The apparatus is preferably for sub-sea deployment and driven by tidal currents, but may be powered by river current or wave driven air or by wind. The apparatus may be deployed on at least one telescoping pole, tethered to the sea-bed and kept buoyant by buoyant concrete in the housing, or inserted in a dam, under a barge or in a tidal power array.
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Citations
18 Claims
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1. A hydro turbine generator apparatus for generating electrical power from water flow, said apparatus comprising at least one magnetic generator and characterized by:
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(a) at least one rotor disk adapted for immersed use in said water flow and comprising a plurality of blades rotatable about a central axis; (b) a generally cylindrical housing defining a duct, said duct being proximate to the tips of said blades; and (c) wherein said at least one magnetic generator is adapted for immersed use in said water flow and comprises a plurality of stators and a plurality of magnets, and wherein a space between said magnets and said stators of said at least one magnetic generator is unsealed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A hydro turbine generator apparatus for generating electrical power from water flow, said apparatus comprising at least one magnetic generator and characterized by:
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(a) at least one rotor disk adapted for immersed use in said water flow and comprising a rotor rim and a plurality of blades attached to said rotor rim; (b) a generally cylindrical housing defining a duct, said duct being proximate to the tips of said blades; and (c) wherein said at least one magnetic generator is adapted for immersed use in said water flow and comprises a plurality of stators and a plurality of magnets in spaced apart relationship with respect to said plurality of stators, wherein a space between said magnets and said stators is flooded with water. - View Dependent Claims (17, 18)
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Specification