Device for mounting and extracting a locking sleeve of a guide tube in a dismountable end nozzle of a nuclear reactor fuel assembly
US5559843A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 3, 1995 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Jul 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The lower part (31) of the pole (10) carries an expansible bush (40) engaged and fixed on the outer surface of the part (31) by one of the ends (41) of the bush and comprising longitudinally extending slots defining resiliently bendable strips. A group of balls (39) mounted to be radially movable in openings (38) in the lower part (31) of the pole (10) and bearing against the bendable strips of the expansion bush are movable between a retracted position and a position for expanding the bush (40), by a cylindrical cam (36) connected to an actuating rod (20). The device permits inserting the locking sleeve (8) in the guide tube (13) without risk of deformation of the end strips of the guide tube (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.