Neutron reflector
US4731220A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1985 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Aug 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Metallic reflector units supported solely by the core barrel substantially fill the annular spaces between the vertically spaced former plates which traverse the irregular space between the fuel assembly array and the core barrel in a pressurized water reactor. The support for each reflector unit comprises a pin extending radially outward along an extended line passing through the center of the metallic mass to support the vertical loads, and four elongated bolts in a rectangular pattern centered on the pin to resist overturning moments induced by seismic loads. The elongated bolts engage the core barrel and the bottoms of bores in the reflector units so that the bolts are free to bend to accommodate for thermal expansion of the reflector unit in all directions from the pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.