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1. 发明授权

US06606369B1 Nuclear reactor with improved grid 有权
标题翻译：核反应堆改良电网
公开(公告)号：US06606369B1
公开(公告)日：2003-08-12
申请号：US10092946
申请日：2002-03-06
申请人： Levie David Smith, III , Yonghwan Kim , Yu Chung Lee , David Lee Stucker
发明人： Levie David Smith, III , Yonghwan Kim , Yu Chung Lee , David Lee Stucker
IPC分类号： G21C3352
CPC分类号： G21C3/322 , G21C3/3563 , G21Y2002/303 , G21Y2004/30 , Y02E30/38
摘要： An improved grid for use in a fuel assembly of a nuclear reactor includes a plurality of straps connected in a lattice, with a plurality of mixing vanes being disposed on the straps and being arranged such that the hydraulic forces on the mixing vanes generally cancel one another out. The mixing vanes of diagonal quadrants of the grid are generally aligned with diagonally disposed imaginary alignment planes. Each strap includes a plurality of strap members, with each strap member including a spring and a pair of dimples. The spring includes a contoured spring embossment having a greater radius of curvature in a relaxed condition than the radius of a fuel rod. Each dimple includes a similarly configured contoured dimple embossment. The spring embossment is mounted on a pair of legs that extend nonlinearly between a first plate and a second plate of each strap member to increase compliance thereof.
摘要翻译：用于核反应堆的燃料组件的改进的格栅包括多个连接在格子上的条带，多个混合叶片设置在带上并且布置成使得混合叶片上的液压力通常互相抵消出来栅格对角象限的混合叶片通常与对角设置的虚拟对准平面对准。每个条带包括多个条带构件，每个条带构件包括弹簧和一对凹坑。弹簧包括在放松条件下具有比燃料棒的半径更大的曲率半径的轮廓弹簧压花。每个凹坑都包括类似配置的轮廓凹坑浮雕。弹簧压花安装在一对腿上，该腿在每个带构件的第一板和第二板之间非线性地延伸，以增加其顺应性。

2. 发明授权

US06608880B2 Reduced pressure drop debris filter bottom nozzle for a fuel assembly of a nuclear reactor 有权
标题翻译：用于核反应堆燃料组件的减压滤芯底部喷嘴
公开(公告)号：US06608880B2
公开(公告)日：2003-08-19
申请号：US09907405
申请日：2001-07-17
申请人： Michael G. Smith , Kyouseok Lee , Yu Chung Lee , Yonghwan Kim
发明人： Michael G. Smith , Kyouseok Lee , Yu Chung Lee , Yonghwan Kim
IPC分类号： G21C332
CPC分类号： G21C3/3206 , Y02E30/40
摘要： A reduced pressure drop debris filter bottom nozzle for use in a fuel assembly of a nuclear reactor includes a plate member formed with a plurality of first flow holes and a plurality of second flow holes. The first flow holes are oblong in cross section and may be of an oval configuration. The first flow holes each have in cross section a major axis and a minor axis, the major axis being longer than the minor axis. The second flow holes are circular in cross section and may have a diameter substantially equal to the minor axis of the first flow holes. The bottom nozzle also features support ligaments that extend between the first flow holes and that are axially aligned with fuel rods within the fuel assembly.
摘要翻译：用于核反应堆的燃料组件中的减压压降碎屑过滤器底部喷嘴包括形成有多个第一流动孔和多个第二流动孔的板构件。第一流动孔的横截面为长方形，并且可以是椭圆形。第一流动孔各自具有长轴和短轴的横截面，长轴比短轴长。第二流动孔是横截面为圆形，并且可以具有基本上等于第一流动孔的短轴的直径。底部喷嘴还具有在第一流动孔之间延伸并且与燃料组件内的燃料棒轴向对齐的支撑韧带。

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