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US 4,432,934 AGranted
Displacer rod for use in a mechanical spectral shift reactor
AssigneeWestinghouse Electric Corp.
InventorsRobert K. Gjertsen, John F. Wilson, Raymond A. George
Life of this patent
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Abstract
A displacer rod for use in a mechanical spectral shift pressurized water nuclear reactor comprises a sectioned substantially hollow low neutron absorbing metal rod capable of displacing reactor coolant without absorbing a high amount of neutrons. The tubular sections can be made of stainless steel or Zircaloy tubing and may contain pellets for weighting the displacer rod.
Claims9
A pressurized water nuclear reactor having low neutron absorbing displacer rods for selectively displacing reactor coolant, said displacer rods comprising:
- a top end plug;
- a hollow stainless steel first tube attached at one end to said top end plug;
- a solid Zircaloy mid rod extension attached at one end to said first tube;
- a hollow Zircaloy second tube attached at one end to said mid rod extension;
- and
- a bottom end plug attached to said second tube for displacing said reactor coolant when inserted into the core of said reactor.
3 more elements
Dependencies are inferred from the claim text.