Positive lock holddown device
Patent
·
OSTI ID:6079468
An apparatus for providing a high, positive locking force at the bottom of a nuclear fuel assembly to resist upward coolant flow forces. A latch on the fuel assembly alignment post is cammed to engage the fuel alignment pin in the core support stand and is linked to an actuating rod extending through the lower end of the fuel assembly center guide tube. The upward flow of coolant against the link and actuating rod causes the link to approach the horizontal, thereby exerting a high locking force between the latch and the fuel alignment pin. In the preferred embodiment spring means interact between the lower end fitting and the actuating rod to maintain an upward bias on the rod.
- Assignee:
- Combustion Engineering Inc
- Patent Number(s):
- US 4268357
- OSTI ID:
- 6079468
- Country of Publication:
- United States
- Language:
- English
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