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Title:
LARGE FLYWHEEL PSEUDO LEVITATION BEARING AND DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/168682
Kind Code:
A3
Abstract:
A pseudo-levitation permanent magnet repulsive bearing and drive system arrangement for a large diameter, hollow centre composite flywheel for multi megawatt hours energy storage. The magnets are positioned in a frustrated cone to assist in centralising the running axis. The levitation system functions utilising multiple concentric rings of prime numbers of repulsive permanent magnets. Diaphragms, which deflect vertically and radially in concert with the flywheel as it speeds up, transmit torque between the flywheel and its drive system via a central drive shaft which rotates within active magnetic bearings or other bearing types. The lower fixed magnet arrays are elongated such that the cylindrical rotating magnets do not overhang at either end of the fixed magnet as the flywheel expands due to centrifugal force.

Inventors:
TURNER, William Brian (4 Galletly Close, Bourne, Lincs PE20 9BA, GB)
Application Number:
GB2012/000495
Publication Date:
June 11, 2015
Filing Date:
June 08, 2012
Export Citation:
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Assignee:
TURNER, William Brian (4 Galletly Close, Bourne, Lincs PE20 9BA, GB)
International Classes:
F16C32/04; F16C39/06; F16F15/315
Domestic Patent References:
WO1995002274A1
Foreign References:
US5268608A
US6570286B1
US6710489B1
US20090085419A1
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