Flywheel-based energy storage and apparatus

Details Flywheel-based energy storage and apparatus Flywheel-based energy storage and apparatus

1992-03-10

1993-12-07

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 516, H02K 708

Patent

active

052686086

ABSTRACT:
Flywheel-based energy storage devices are provided along with methods for their use and fabrication. The devices have the capacity to store electric energy as kinetic energy and to generate electric energy from the stored kinetic energy. Preferred devices comprise a pair of counter-rotating anisotropic flywheels which are designed to rapidly rotate within an evacuated housing. The flywheels comprise a lightweight hub and a circumferentially-wound fiber rim. The hub and rim are fabricated from materials having high tensile strength and are connected with system of novel tube assemblies positioned around the hub parallel to the axis of rotation. The flywheel are principally supported by magnetic bearings and are further stabilized during rotation by a self-restoring liquid bearing system.

REFERENCES:
patent: 4613761 (1986-09-01), Yabunaka

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