Title:
FLYWHEEL BATTERY SYSTEM WITH ACTIVE COUNTER-ROTATING CONTAINMENT
Document Type and Number:
WIPO Patent Application WO1999040668
Kind Code:
A9
Abstract:
Flywheel battery systems having improved energy density are provided. Such systems preferably have an inner rotor (118) mounted coaxially and substantially cylindrically within an outer containment (120) so as to manage the net gyroscopic force generated by the flywheel system. The outer rotor (120) has a greater relative inertia as compared to said inner rotor (118) and therefore can be rotated at a relatively lower rotational velocity to balance the gyroscopic forces generated by the rotation of the inner rotor. The relative rotational velocities of the inner and outer rotor are maintained by a combined mechanical and magnetic drive/suspension system (130).
Inventors:
ZORZI EDWARD S
BLAKE H WAYLAND
BLAKE H WAYLAND
Application Number:
PCT/US1999/002481
Publication Date:
October 14, 1999
Filing Date:
February 09, 1999
Export Citation:
Assignee:
AMERICAN FLYWHEEL SYSTEMS INC (US)
International Classes:
F16F15/30; H02J15/00; H02K7/02; H02K7/08; H02K7/09; F16F15/315; H02K7/11; H02K16/00; (IPC1-7): H02K7/02; H02K7/09; H02K16/00; H02K16/02; H02K51/00
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