Temperature actuated automatic safety rod release

Patent · Thu Jan 01 04:00:00 EST 1987

OSTI ID:866200

Hutter, Ernest ^[1]; Pardini, John A ^[2]; Walker, David E ^[3]

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1. Wilmette, IL
2. Brookfield, IL
3. Naperville, IL

A temperature-actuated apparatus is disclosed for releasably supporting a safety rod in a nuclear reactor, comprising a safety rod upper adapter having a retention means, a drive shaft which houses the upper adapter, and a bimetallic means supported within the drive shaft and having at least one ledge which engages a retention means of the safety rod upper adapter. A pre-determined increase in temperature causes the bimetallic means to deform so that the ledge disengages from the retention means, whereby the bimetallic means releases the safety rod into the core of the reactor.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4654192
• OSTI ID: 866200
• Country of Publication: United States
• Language: English

Related Subjects

/376/285/403/976/
actuated
adapter
apparatus
automatic
automatic safety
bimetallic
causes
comprising
core
deform
disclosed
disengages
drive
drive shaft
engages
houses
increase
ledge
means
nuclear
nuclear reactor
pre-determined
reactor
releasably
release
releases
retention
retention means
rod
rod release
safety
safety rod
shaft
supported
supporting
temperature
temperature actuated
temperature-actuated
upper
upper adapter
whereby