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U.S. Department of Energy
Office of Scientific and Technical Information

Temperature sensitive self-actuated scram mechanism

Patent ·
OSTI ID:5486183
A self-actuated mechanism within a safety assembly in a liquid metal nuclear reactor comprising sensor fuel pins located in a reactor coolant flow path, a sensor bulb containing NaK located near the upper end of the sensor fuel pins and in the reactor coolant flow path, and a sensor tube connecting the sensor bulb to a metal bellows and push rod. The motion of the push rod resulting from the temperature dependent change in the NaK volume actuates a safety rod release mechanism when a predetermined coolant temperature is reached.
Assignee:
Combustion Engineering Inc
Patent Number(s):
US 4204909
OSTI ID:
5486183
Country of Publication:
United States
Language:
English