Control rod drive for reactor shutdown. [LMFBR]

Patent · Tue Jan 20 00:00:00 EST 1976

OSTI ID:7274481

McKeehan, E R; Shawver, B M; Schiro, D J; Taft, W E

A means is described for rapidly shutting down or scramming a nuclear reactor, such as a liquid metal-cooled fast breeder reactor. The system 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.

• Assignee: Energy Research and Development Administration
• Patent Number(s): US 3933581
• Application Number: TRN: 04-016921
• OSTI ID: 7274481
• Resource Relation: Patent File Date: Filed date 4 Jun 1974; Other Information: PAT-APPL-476,173
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CONTROL ROD DRIVES
LMFBR TYPE REACTORS
CONFIGURATION
CONTROL ELEMENTS
REACTOR SHUTDOWN
SCRAM RODS
BREEDER REACTORS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
LIQUID METAL COOLED REACTORS
REACTOR COMPONENTS
REACTORS
SHUTDOWNS
220400* - Nuclear Reactor Technology- Control Systems
210500 - Power Reactors
Breeding