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Title: Spacer grid assembly and locking mechanism

Abstract

A spacer grid assembly is disclosed for retaining a plurality of fuel rods in substantially parallel spaced relation, the spacer grids being formed with rhombic openings defining contact means for engaging from one to four fuel rods arranged in each opening, the spacer grids being of symmetric configuration with their rhombic openings being asymmetrically offset to permit inversion and relative rotation of the similar spacer grids for improved support of the fuel rods. An improved locking mechanism includes tie bars having chordal surfaces to facilitate their installation in slotted circular openings of the spacer grids, the tie rods being rotatable into locking engagement with the slotted openings.

Inventors:
; ;
Issue Date:
Research Org.:
GA Technologies, Inc., San Diego, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
864113
Patent Number(s):
4312706
Application Number:
06/130995
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
AT03-76SF71023
Resource Type:
Patent
Resource Relation:
Patent File Date: 1980 Mar 17
Country of Publication:
United States
Language:
English
Subject:
spacer; grid; assembly; locking; mechanism; disclosed; retaining; plurality; fuel; rods; substantially; parallel; spaced; relation; grids; formed; rhombic; openings; defining; contact; means; engaging; arranged; symmetric; configuration; asymmetrically; offset; permit; inversion; relative; rotation; similar; improved; support; tie; bars; chordal; surfaces; facilitate; installation; slotted; circular; rotatable; engagement; tie rods; contact means; tie bar; spaced relation; fuel rods; fuel rod; substantially parallel; spacer grid; locking mechanism; parallel spaced; relative rotation; grid assembly; rods arranged; symmetric configuration; /376/976/

Citation Formats

Snyder, Jr., Harold J., Veca, Anthony R., and Donck, Harry A.. Spacer grid assembly and locking mechanism. United States: N. p., 1982. Web.
Snyder, Jr., Harold J., Veca, Anthony R., & Donck, Harry A.. Spacer grid assembly and locking mechanism. United States.
Snyder, Jr., Harold J., Veca, Anthony R., and Donck, Harry A.. Fri . "Spacer grid assembly and locking mechanism". United States. https://www.osti.gov/servlets/purl/864113.
@article{osti_864113,
title = {Spacer grid assembly and locking mechanism},
author = {Snyder, Jr., Harold J. and Veca, Anthony R. and Donck, Harry A.},
abstractNote = {A spacer grid assembly is disclosed for retaining a plurality of fuel rods in substantially parallel spaced relation, the spacer grids being formed with rhombic openings defining contact means for engaging from one to four fuel rods arranged in each opening, the spacer grids being of symmetric configuration with their rhombic openings being asymmetrically offset to permit inversion and relative rotation of the similar spacer grids for improved support of the fuel rods. An improved locking mechanism includes tie bars having chordal surfaces to facilitate their installation in slotted circular openings of the spacer grids, the tie rods being rotatable into locking engagement with the slotted openings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}