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US 2014/0232117 A1Published application
Hydroelectric turbine coil arrangement
AssigneeOpenhydro IP Limited
InventorEdward Spooner
Life of this patent
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Abstract
The present invention provides a hydroelectric turbine for generating electricity by extracting power from the tidal flow of water through the turbine, the turbine comprising a shaftless rotor which results in the eccentric rotation of the rotor relative to the stator, which can result in uneven generation of power through differences in the spacing between rim mounted magnets and coils forming a generator of the turbine, the turbine thus employing groupings of equally spaced and serially connected coils.
Claims6
A hydroelectric turbine comprising a stator;
- a shaftless rotor housed for rotation within the stator, the stator defining an opening within which the rotor is constrained, the opening being shaped and dimensioned, relative to the rotor, to provide the rotor with a floating axis of rotation;
- an array of magnets on the rotor;
- and a corresponding array of coils on the stator;
- characterised in that the coils are arranged in groups within which the coils are circumferentially equally spaced from one another and are electrically connected together in series.
1 more element
Dependencies are inferred from the claim text.