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

Expandable device for a nuclear fuel rod

Patent ·
OSTI ID:5074146
A nuclear fuel rod and a device for use within the rod cladding to maintain the axial position of the fuel pellets stacked one atop another within the cladding are described. The device is initially of a smaller external cross-section than the fuel rod cladding internal cross-section so as to accommodate loading into the rod at preselected locations. During power operation the device responds to a rise in temperature, so as to permanently maintain its position and restrain any axial motion of the fuel pellets.
Assignee:
Westinghouse Electric Corp.
Patent Number(s):
US 4080253
OSTI ID:
5074146
Country of Publication:
United States
Language:
English

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