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Title: Fast-acting nuclear reactor control device

Patent ·
OSTI ID:868878

A fast-acting nuclear reactor control device for moving and positioning a fety control rod to desired positions within the core of the reactor between a run position in which the safety control rod is outside the reactor core, and a shutdown position in which the rod is fully inserted in the reactor core. The device employs a hydraulic pump/motor, an electric gear motor, and solenoid valve to drive the safety control rod into the reactor core through the entire stroke of the safety control rod. An overrunning clutch allows the safety control rod to freely travel toward a safe position in the event of a partial drive system failure.

Research Organization:
EG & G IDAHO INC
DOE Contract Number:
AC07-76ID01570
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Number(s):
US 5232656
OSTI ID:
868878
Country of Publication:
United States
Language:
English