Fuel assembly
US4420457A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1981 |
| Grant date | Dec 13, 1983 |
| Priority date | — |
| Expiry date | Sep 18, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The object of the invention is a nuclear reactor fuel assembly including fuel elements arranged in a supporting frame comprising two endpieces, the upper (1) and the lower (2) respectively, to which are attached the ends of a plurality of vertical tubes (3), each endpiece 1(2) including a plane base 11(21) in which are arranged two series of orifices 7 for retaining the tubes (3) and for the flow of the cooling fluid. In accordance with the invention the base (11,21) of each endpiece (1,2) is joined side by side with an inner plate (15,25) equipped with the same series of orifices (70) for retaining the tubes (3) and for the flow of the fluid, and the orifices (70) have an oblong cross-section and are equipped with parts for attachment which cooperate with corresponding parts (31) for attachment of the said tubes (3) by transverse displacement of the inner plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.