Upper internal equipment of a pressurized water nuclear reactor
US4606881A · kind A · utility
1Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1982 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Nov 16, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Upper internal equipment of a pressurized water nuclear reactor, comprising guide tubes containing guide plates and sleeves adapted to two different types of charge of the reactor core, one for obtaining a thermal neutron spectrum and the other for obtaining an epithermal spectrum. The plates (20) and the sleeves (33, 34) have, for each of the guide tubes, a first set of perforations (31, 36) and a second set of perforations (30,35) for guiding the control rods in either case. The invention applies to a pressurized water reactor operating either as a conventional reactor or as an undermoderated reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.