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Title:
FAIL-FREE FUEL BUNDLE ASSEMBLY
Document Type and Number:
Japanese Patent JP2009133852
Kind Code:
A
Abstract:

To provide a fuel assembly (14) for a reactor core (10).

The fuel assembly (14) may include a plurality of rods (18/20) consisting of a fuel rod (18) and/or an isotope production rod (20). Each of the rods (18/20) contains a plurality of interconnected rod segments (40), and at least two of the rod segments (40) of at least one of the rods (18/20) have outer diameters (D) different from each other. The fuel assembly (14) may include a plurality of rod spacer grids (34) surely held between the interconnected rod segments (40) adjacent from each other in the axial direction. The rod spacer grids (34) connected with each other between the rod segments (40) adjacent to each other in the axial direction form an array of the rods (18/20) substantially equally spaced apart from each other. Further, the fuel assembly (14) may include an elongate tubular channel (22) for housing the arrayed rods (18/20).


Inventors:
RUSSELL II WILLIAM EARL
MONETTA CHRISTOPHER J
FULLER JOHN D
TROSMAN LUKAS
SMITH DAVID GREY
CLARK CARLTON WAYNE
JAMES ROBERT BRYANT
Application Number:
JP2008292874A
Publication Date:
June 18, 2009
Filing Date:
November 17, 2008
Export Citation:
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Assignee:
GE HITACHI NUCL ENERGY AMERICA
International Classes:
G21C3/33; G21C3/34; G21C23/00; G21G1/02
Domestic Patent References:
JP2006162613A2006-06-22
JPS61256296A1986-11-13
Foreign References:
US3015616A1962-01-02
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Toshihisa Kurokawa
Arakawa Satoshi