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Axially free flywheel system
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Permanent magnetic bearing
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Device for prevention of power interruptions
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Full magnetic bearings with increased load capacity
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Speed control for a flywheel energy storage system
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Flywheel device with active magnetic bearings
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Vacuum regeneration method for a flywheel system
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Flywheel system with tilt switch
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Active magnetic thrust bearing
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Stacked disc flywheel
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Flywheel power source with passive generator cooling
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WO0215366A1
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Long-life vacuum system for energy storage flywheels
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Uninterruptible power supply using a high speed cylinder flywheel
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Flywheel uninterruptible power source
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High performance composite flywheel
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Full levitation bearing system with improved passive radial magnetic bearings
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