Linear motion device and method for inserting and withdrawing control rods

Patent · Sat Dec 31 23:00:00 EST 1983

OSTI ID:865262

Smith, Jay E ^[1]

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1. Pittsburgh, PA

A linear motion device, more specifically a control rod drive mechanism (CRDM) for inserting and withdrawing control rods into a reactor core, is capable of independently and sequentially positioning two sets of control rods with a single motor stator and rotor. The CRDM disclosed can control more than one control rod lead screw without incurring a substantial increase in the size of the mechanism.

• Research Organization: Bettis Atomic Power Lab., West Mifflin, Pa. (USA)
• DOE Contract Number: EY-76-C-11-0014
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4484093
• OSTI ID: 865262
• Country of Publication: United States
• Language: English

Related Subjects

/310/74/376/976/
capable
control
control rod
control rods
core
crdm
device
disclosed
drive
drive mechanism
increase
incurring
independently
inserting
lead
lead screw
linear
linear motion
mechanism
method
motion
motion device
motor
motor stator
positioning
reactor
reactor core
rod
rod drive
rods
rotor
screw
sequentially
sets
single
size
specifically
stator
substantial
substantial increase
withdrawing
withdrawing control