Nuclear reactor shutdown control rod assembly

Patent · 01 January 1988

OSTI ID:866549

Bilibin, Konstantin ^[1]

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1. North Hollywood, CA

A temperature responsive, self-actuated nuclear reactor shutdown control rod assembly 10. The upper end 18 of a lower drive line 17 fits within the lower end of an upper drive line 12. The lower end (not shown) of the lower drive line 17 is connected to a neutron absorber. During normal temperature conditions the lower drive line 17 is supported by detent means 22,26. When an overtemperature condition occurs thermal actuation means 34 urges ring 26 upwardly sufficiently to allow balls 22 to move radially outwardly thereby allowing lower drive line 17 to move downwardly toward the core of the nuclear reactor resulting in automatic reduction of the reactor powder.

• Research Organization: ROCKWELL INTERNATIONAL CORP
• DOE Contract Number: AC03-83SF11902
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4734252
• OSTI ID: 866549
• Country of Publication: United States
• Language: English

Related Subjects

/376/285/403/976/
10
12
17
18
22
26
34
absorber
actuated nuclear
actuation
allow
allowing
assembly
automatic
balls
condition
condition occurs
conditions
connected
control
control rod
core
detent
downwardly
drive
drive line
fits
line
means
move
move radially
neutron
neutron absorber
normal
normal temperature
nuclear
nuclear reactor
occurs
outwardly
overtemperature
powder
radially
radially outward
radially outwardly
reactor
reactor shutdown
reduction
responsive
resulting
rod
rod assembly
self-actuated
self-actuated nuclear
shown
shutdown
shutdown control
sufficiently
supported
temperature
temperature conditions
temperature responsive
thermal
upper
upper drive
upwardly
urges