Nuclear fuel rod grid spring and dimple structures having chamfered edges for reduced pressure drop

Patent · Tue May 08 00:00:00 EDT 1990

OSTI ID:6655235

De Mario, E E

This patent describes a nuclear fuel rod grid including inner and outer straps being interleaved with one another to form a matrix of hollow cells, each cell for receiving one fuel rod and being defined by pairs of opposing wall sections of the straps which wall sections are shared with adjacent cells, each cell having a central longitudinal axis defining a coolant flow direction through the cell, at least fuel rod engaging dimple structure of resiliently yieldable material being integrally formed on each wall section of the inner straps.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA (USA)
• Patent Number(s): US 4923669; A
• Application Number: PPN: US 7-312288A; TRN: 90-028794
• OSTI ID: 6655235
• Resource Relation: Patent File Date: 21 Feb 1989
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
FUEL ASSEMBLIES
SPRINGS
DESIGN
FUEL RODS
SUPPORTS
FUEL ELEMENTS
MACHINE PARTS
MECHANICAL STRUCTURES
REACTOR COMPONENTS
220300* - Nuclear Reactor Technology- Fuel Elements