Composite flywheel rim with co-mingled fiber layers and methods for manufacturing same
US6852401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Sep 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249927
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composite-based rim and methods for manufacturing such a rim are provided. The rim includes multiple fiber-based, co-mingled layers, wherein the strength and/or stiffness of the layers increases from the innermost layer of the rim to the outermost layer of the rim, but where the radial stress and strain generated in the rim decreases from the innermost layer to the outermost layer. Incorporation of this rim into a high stress and strain usage environment, such as a flywheel system, allows the rim to be spun at high speeds in order to generate high levels of kinetic energy while beneficially managing the amount of strain and radial stresses generated within the rim, and, in turn, minimizing or at least controlling the formation and propagation of cracks within the rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.