Large scale flywheel for energy storage
AssigneeBergan Technology AS
InventorPål G. BERGAN
Life of this patent
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Abstract
Flywheel for energy storage, comprising a rotor, a housing enclosure, means for charging energy by transferring electric energy to stored kinetic energy in the rotating rotor and means for discharging energy by transferring stored kinetic energy in the rotating rotor to electric energy, distinctive in that the rotor is vertically oriented, the rotor has mass of over 5000 kg, the rotor comprises a central vertical shaft, a radial bearing is arranged to an upper end of the vertical shaft, an axial-radial hydraulic bearing, or separate axial and radial bearings, is arranged to a lower end of the vertical shaft.
Claims10
A flywheel for energy storage, the flywheel comprising:
- a rotor;
- a housing enclosure;
- means for charging energy by transferring electric energy to stored kinetic energy in the
- rotating rotor and means for discharging energy by transferring stored kinetic energy in
- the rotating rotor to electric energy;
- wherein the rotor is vertically oriented;
- wherein the rotor has mass of over 5000 kg;
- wherein the rotor comprises a central vertical shaft;
- wherein a radial bearing is arranged to an upper end the vertical shaft;
- and
- wherein an axial-radial bearing, consisting of a cylindrical chamber filled with hydraulic fluid into which the end of the cylindrical shaft is fitted, or separate axial and radial bearings, is arranged to a lower end of the vertical shaft.
Dependencies are inferred from the claim text.