Nuclear reactor fuel assembly peripheral rod lifting device
US4575930A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1983 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Dec 21, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/531
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The specification discloses a device (32) for raising peripheral fuel rods of a fuel assembly for inspection under submerged conditions in a nuclear reactor facility. The device (32) includes a frame comprising top and bottom plates (36, 38) interconnected by rods (40) with an intermediate plate (52) supported therein for vertical movement responsive to a cylinder (60). A yoke (64) is mounted for horizontal movement on the intermediate plate (52) responsive to another cylinder (66) to engage a fuel rod so that it can then be lifted by the first cylinder (60). Proper alignment relative to the peripheral rods of the fuel assembly is accomplished by means of pins (50) which are received in indexing holes (80) of a support plate (68) for the fuel assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.