Fuel assembly spacer
US4579711A · kind A · utility
19Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1983 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Feb 7, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S376/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spacer for supporting a plurality of fuel rods forming a nuclear fuel assembly. The spacer comprises a peripheral band surrounding a bundle of the fuel rods and a plurality of spacer framework units, each holding therein one fuel rod. The spacer framework units are welded or brazed to the peripheral band so as to be arranged inside the peripheral band. Spring members are integrally formed on each of the spacer framework units. The spacer framework units, the spring members and the peripheral band are made of a zirconium alloy containing 5-25% by weight niobium and 0.1-1% by weight chromium and/or iron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.