Reconstitutable fuel assembly having removable upper stops on guide thimbles

Patent · Tue Oct 27 04:00:00 EST 1987

OSTI ID:5688413

Wilson, J F; Seel, D D; Pepka, J M

In a nuclear fuel assembly having at least one control rod guide thimble and a top nozzle, the guide thimble including an upper extension member, the top nozzle including an upper hold-down plate having a passageway slidably receiving an upper end portion of the extension member, an improved structure for removably attaching the upper hold-down plate on the guide thimble upper extension member is described comprising: (a) means defining a recess on the upper end portion of the extension member; (b) a stop member having upper and lower portions; (c) an element mounted in the upper hold-down plate and extending therefrom into the passageway of the plate and the recess of the extension member upper end portion.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4702883
• OSTI ID: 5688413
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220300* -- Nuclear Reactor Technology-- Fuel Elements
CONTROL ELEMENTS
DESIGN
FUEL ASSEMBLIES
MECHANICAL STRUCTURES
NOZZLES
PLATES
REACTOR COMPONENTS
SUPPORTS