Reduced pressure drop debris filter bottom nozzle for a fuel assembly of a nuclear reactor
US6608880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2001 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Sep 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A reduced pressure drop debris filter bottom nozzle for use in a fuel assembly of a nuclear reactor includes a plate member formed with a plurality of first flow holes and a plurality of second flow holes. The first flow holes are oblong in cross section and may be of an oval configuration. The first flow holes each have in cross section a major axis and a minor axis, the major axis being longer than the minor axis. The second flow holes are circular in cross section and may have a diameter substantially equal to the minor axis of the first flow holes. The bottom nozzle also features support ligaments that extend between the first flow holes and that are axially aligned with fuel rods within the fuel assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.