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1. 发明授权

US06310932B1 Fretting resistant spring design 有权
标题翻译：耐磨弹簧设计
公开(公告)号：US06310932B1
公开(公告)日：2001-10-30
申请号：US09694466
申请日：2000-10-23
申请人： Paul M. Evans , Quang M. Nguyen , John C. Rue, Jr. , Gregory D. Livermore , Virgil Jamie Vasquez
发明人： Paul M. Evans , Quang M. Nguyen , John C. Rue, Jr. , Gregory D. Livermore , Virgil Jamie Vasquez
IPC分类号： G21C318
CPC分类号： G21C3/3563 , Y02E30/40
摘要： A new spring design for a strap employed in a grid of a nuclear reactor fuel assembly includes a pair of ligaments that each connect with the free portion of the retention plate. The ligaments each are equally spaced a certain distant from the termination of the slots within the strap body. The spring additionally includes a spring contact plate that is wider than the connections of the spring ligaments with the free portion to increase the surface area with which the spring contact plate is in contact with and retains the fuel rod, and thus reduces the contact stresses therebetween. The spring contact plate additionally includes an embossed spring contact member protruding outwardly therefrom reduces the frictional stresses on the fuel rod when it is inserted into and removed from the cell and during vibration of the fuel rod and/or the strap.
摘要翻译：用于核反应堆燃料组件的网格中的带的新的弹簧设计包括一对韧带，每个韧带与保持板的自由部分连接。韧带各自与带体内的狭槽的端部相等间隔一定距离。弹簧还包括弹簧接触板，该弹簧接触板比弹簧韧带与自由部分的连接更宽，以增加弹簧接触板与其接触并保持燃料棒的表面积，从而减小它们之间的接触应力。弹簧接触板另外包括从其向外突出的压花弹簧接触构件，当将燃料棒插入和移出电池并且在燃料棒和/或带的振动期间时，减小燃料棒上的摩擦应力。

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