High-vacuum-maintaining structure of superconducting cable
US7288715B2 · kind B2 · utility
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4References
8Claims
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Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jan 29, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49014
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a high-vacuum-maintaining structure of a superconducting cable. The superconducting cable includes inner and outer metal tubes, and spacers disposed between the inner and outer metal tubes for spacing them by a prescribed distance. To the spacers is attached a gathering material, which serves to adsorb residual gas between the inner and outer metal tubes, thereby maintaining the superconducting cable in a high-vacuum state for a long time, improving thermal insulation performance of the superconducting cable, and reducing cooling costs and maintenance costs required for vacuum pumping thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.