ENERGY STORAGE DEVICE WITH A FLYWHEEL SUPPORTED ON ROLLING BEARINGS AND WITH PERMANENT MAGNETS TO RELIEVE THE LOAD ON THE ROLLING BEARINGS

摘要

A flywheel energy storage (1), particularly suitable to supply machines or installations in areas not served by electrical supply networks, and as alternative to traditional battery assemblies, comprising a box casing (2) defining a vacuum chamber (20) wherein a rotatable flywheel (3) being integral with a supporting shaft (4) is housed; said supporting shaft (4) being radially supported by a plurality of mechanical bearings (5) and being axially supported by magnets (6) suitable to partially or totally balance or to reverse the weight force acting on the flywheel.