Reactor internals hold down spring
US4786461A · kind A · utility
9Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1983 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Sep 30, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a reactor internals hold down spring and upper head region cooling passage. The hold down spring utilizes a plurality of stacks of Belleville spring washers to provide spring load and deflection capability to hold down the reactor vessel internals. Each spring assembly includes a generally leak tight means for passing an adjustable coolant flow to the upper reactor vessel head region in order to maintain that region at inlet coolant temperature. The spring assemblies are angularly spaced about a core barrel support flange to cooperate with coolant flow passage formed therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.