Protective device for lower end portion of a nuclear fuel rod cladding
Patent
·
OSTI ID:5577941
This patent describes an antifretting protective device in a nuclear fuel assembly for receiving an upward flow of coolant therethrough and including an elongated fuel rod extending along the upward coolant flow and a grid extending transverse thereto. The grid being composed of interleaved walls disposed in an egg-crate configuration and having upper and lower opposite ends defining at least one cell extending therebetween which receives a portion of the upward coolant flow therethrough the fuel rod having a tubular cladding with a lower end portion thereof extending through the grid cell walls. The tubular cladding lower end portion being spaced radially inwardly at an exterior surface thereof from the grid cell walls.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (USA)
- Patent Number(s):
- A; US 4980121
- Application Number:
- PPN: US 7-386065
- OSTI ID:
- 5577941
- Country of Publication:
- United States
- Language:
- English
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