Filament rotor having elastic sheaths covering the filamentary elements of the structure

摘要

The invention generally relates to inertial energy storage devices formed of wound anisotropic material. In particular, the invention provides a disc-like flywheel formed of windings of anisotropic filaments wherein the filaments are provided with a relatively thin sheath of flexible material around each of the filaments, the flexible sheath providing positive contact between adjacent windings even during deformation of the windings caused by rotation of the structure.