Superconducting cable
US6835892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2003 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Feb 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49014
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Superconducting cable (1) comprising:a) a layer (20) of tapes comprising superconducting material,b) a tubular element (6) for supporting said layer (20) of tapes comprising superconducting material,c) a cooling circuit, adapted to cool the superconducting material to a working temperature not higher than its critical temperature,characterized in that said tubular element (6) is composite and comprises a predetermined amount of a first material having a first thermal expansion coefficient and a second material having a thermal expansion coefficient higher than that of said first material, said thermal expansion coefficients and said amounts of said first and second material being predetermined in such a way that said tubular element has an overall thermal shrinkage between the room temperature and said working temperature of the cable such as to cause a deformation of said tapes comprising superconducting material lower than the critical deformation of the same tapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.