Patent ID: 9576685
Date: 2017-02-21
CPC Classifications: G21C,Y02E

Claim:
1. A fuel bundle for a liquid metal cooled reactor, comprising: a channel; a nose assembly secured to a lower end of the channel; a plurality of fuel rods disposed within the channel, at least one of the fuel rods having at least one guard ring surrounding the fuel rod and spacing the fuel rod from adjacent fuel rods, wherein the at least one guard ring is only rigidly affixed to the fuel rod the plurality of fuel rods including a first set of fuel rods and a second set of fuel rods, each of the fuel rods in the first set of fuel rods having a first pattern of one or more guard rings longitudinally arranged thereon, each of the fuel rods in the second set of fuel rods having a second pattern of one or more guard rings longitudinally arranged thereon, the first pattern being different than the second pattern.