PWR integral tie plate and locking mechanism
A locking mechanism for securing an upper tie plate to the tie rods of a nuclear fuel bundle is described. The mechanism includes an upper tie plate assembly and locking sleeves fixed to the ends of the tie rods. The tie plate is part of the upper tie plate assembly and is secured to the fuel bundle by securing the entire upper tie plate assembly to the locking sleeves fixed to the tie rods. The assembly includes, in addition to the tie plate, locking nuts for engaging the locking sleeves, retaining sleeves to operably connect the locking nuts to the assembly, a spring biased reaction plate to restrain the locking nuts in the locked position and a means to facilitate the removal of the entire assembly as a unit from the fuel bundle.
- Assignee:
- Exxon Nuclear Co. Inc.
- Patent Number(s):
- US 4219386
- Application Number:
- TRN: 81-001797
- OSTI ID:
- 6749004
- Resource Relation:
- Patent File Date: Filed date 10 Jun 1977
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nuclear fuel assembly
Assembly mechanism for nuclear fuel bundles