Control rod drive for reactor shutdown

Patent · Tue Jan 20 00:00:00 EST 1976

OSTI ID:862454

McKeehan, Ernest R ^[1]; Shawver, Bruce M ^[2]; Schiro, Donald J ^[2]; Taft, William E ^[1]

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1. Los Gatos, CA
2. San Jose, CA

A means for rapidly shutting down or scramming a nuclear reactor, such as a liquid metal-cooled fast breeder reactor, and serves as a backup to the primary shutdown system. The control rod drive consists basically of an in-core assembly, a drive shaft and seal assembly, and a control drive mechanism. The control rod is driven into the core region of the reactor by gravity and hydraulic pressure forces supplied by the reactor coolant, thus assuring that common mode failures will not interfere with or prohibit scramming the reactor when necessary.

• Research Organization: General Electric Co., Sunnyvale, Calif. (USA). Breeder Reactor Dept.
• DOE Contract Number: AT(04-3)-893
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 3933581
• Application Number: 05/476,173
• OSTI ID: 862454
• Country of Publication: United States
• Language: English

Related Subjects

control
rod
drive
reactor
shutdown
means
rapidly
shutting
scramming
nuclear
liquid
metal-cooled
fast
breeder
serves
backup
primary
consists
basically
in-core
assembly
shaft
seal
mechanism
driven
core
region
gravity
hydraulic
pressure
forces
supplied
coolant
assuring
common
mode
failures
interfere
prohibit
liquid metal-cooled
pressure forces
control drive
common mode
drive mechanism
hydraulic pressure
rod drive
seal assembly
breeder reactor
reactor coolant
fast breeder
drive shaft
control rod
nuclear reactor
liquid metal
reactor shutdown
core region
core assembly
cooled fast
metal-cooled fast
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