Control rod for a nuclear reactor

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863318

Roman, Walter G ^[1]

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1. Pittsburgh, PA

A control rod assembly for a nuclear reactor is disclosed having a remotely disengageable coupling between the control rod and the control rod drive shaft. The coupling is actuated by first lowering then raising the drive shaft. The described motion causes axial repositioning of a pin in a grooved rotatable cylinder, each being attached to different parts of the drive shaft which are axially movable relative to each other. In one embodiment, the relative axial motion of the parts of the drive shaft is used either to couple or to uncouple the connection by forcing resilient members attached to the drive shaft into or out of shouldered engagement, respectively, with an indentation formed in the control rod.

• DOE Contract Number: E(11-1)-2395
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 4147589
• OSTI ID: 863318
• Country of Publication: United States
• Language: English

Related Subjects

control
rod
nuclear
reactor
assembly
disclosed
remotely
disengageable
coupling
drive
shaft
actuated
lowering
raising
described
motion
causes
axial
repositioning
grooved
rotatable
cylinder
attached
axially
movable
relative
embodiment
couple
uncouple
connection
forcing
resilient
shouldered
engagement
respectively
indentation
formed
axially movable
rod assembly
rod drive
drive shaft
control rod
nuclear reactor
movable relative
rotatable cylinder
remotely disengageable
/376/976/