Flywheel
US5946979A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2132
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flywheel comprises an annular body (13) which is arranged on a rotatably mounted metallic shaft (10). The shaft has at least one hollow shaft part (12) having an outer surface part coextending or diverging outwardly in relation to the axis of the shaft and defining a surface of revolution, which is coaxial with the shaft. The hollow shaft part (12) is interconnected with the annular body 913) so as to allow radial expansion of the latter under the influence of centrifugal forces. At least part of the outer surface part of the hollow shaft part (12) is backed up by generally peripherally extending reinforcing fibers (14) so as to allow the flywheel to rotate at an increased rotational speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.