Nuclear fuel assembly with holding structure and hold down device
US4828792A · kind A · utility
15Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1986 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Aug 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A nuclear fuel assembly comprises a bundle of elongated fuel rods distributed at nodes of a regular lattice and a structure for retaining said fuel rods. The structure has a lower end piece, and upper end pieces, tie rods connecting said end pieces and grids distributed along the tie rods for maintaining the fuel rods at the nodes. The structure consists of two substructures slidable with respect to each other in the direction of the fuel rods. Springs located between the two substructures spread apart the two end pieces for respective abutment against a lower core plate and an upper core plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.