Flywheel intended for energy storage
US10281003B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2015 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Dec 12, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a flywheel intended for energy storage, including a cylindrical mass body including a main material with compression resistance of at least 25 MPa, such as concrete, the body being surrounded on at least one portion of the outer surface thereof with fibers, the material that makes up the fibers having a tensile strength of at least 100 Mpa. The tension of winding the fibers around the body leads to the compression of the main material, and the tension applied to the fibers is such that the stress exerted on the material of the mass body is at least equal to half of the maximum acceptable stress, the maximum stress being lower than the compression yield strength of the material that makes up the mass body, the material of the latter thus being pre-stressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.