Advanced flywheel and method
US8314527B2 · kind B2 · utility
8Cited by
17References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2009 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flywheel levitation apparatus and associated method are described for use in a flywheel driven power storage system having a rotor and which provides for an upward vertical movement of the rotor along an axis of rotation. The rotor includes a rotor face defining a cutaway section. A magnetic lifting force is applied to the rotor to at least in part serve in levitating the rotor. The magnetic lifting force exhibits a modified gap sensitivity that is smaller as compared to a conventional gap sensitivity that would be exhibited in an absence of the cutaway section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.