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1. 发明专利

JP2014062896A Spacers with deflection-limited rod contacts for nuclear fuel assemblies and methods of making the same 有权
标题翻译：具有用于核燃料组件的偏转有限连接点的间隔件及其制造方法
公开(公告)号：JP2014062896A
公开(公告)日：2014-04-10
申请号：JP2013175114
申请日：2013-08-27
申请人： Global Nuclear Fuel Americas Llc , グローバル・ニュークリア・フュエル・アメリカズ・エルエルシー
发明人： KATHRYN M MARTIN
IPC分类号： G21C3/34 , G21C3/33
CPC分类号： G21C3/336 , G21C3/3424 , G21C3/3563 , Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide spacers for nuclear fuel assemblies including rod contacts which provide a fuel rod with certain elasticity and then limit deflection.SOLUTION: Nuclear fuel spacers include a deflection-limited elastic rod contact 146. Spacers may additionally include a rigid contact without elastic functionality. A degree of deflection may be chosen based on a plastic deformation threshold, maximum fuel rod movement, anticipated transverse loads related to a fuel assembly including inspection, handling, transportation, operation and accidents, and/or any other operating characteristics. Spacers include deflection-limited elastic contacts 461a and/or rigid contacts in a plurality of arrangements within the spacer and/or in contact with a single fuel rod. Spacers are compatible with a simple fabrication method that forms rigid, deflection-limiting, and elastic components from a single substrate. Nuclear fuel spacers are useable with a plurality of fuel assembly types.
摘要翻译：要解决的问题：提供用于核燃料组件的间隔件，其包括杆接触件，其提供具有一定弹性的燃料棒，然后限制挠曲。解决方案：核燃料间隔件包括偏转限制弹性杆接触件146.间隔件可另外包括刚性接触件没有弹性功能。可以基于塑性变形阈值，最大燃料棒运动，与包括检查，处理，运输，操作和事故以及/或任何其它操作特性相关的燃料组件的预期横向载荷来选择偏转度。间隔件包括偏转限制的弹性触点461a和/或在间隔件内的多个布置中和/或与单个燃料棒接触的刚性触点。隔板与简单的制造方法兼容，该方法从单个基板形成刚性，偏转限制和弹性部件。核燃料间隔件可用于多种燃料组件类型。

2. 发明专利

JP2013200307A Spacers with deflection-limited peripheral springs for nuclear fuel assemblies and methods of making the same 审中-公开
标题翻译：具有用于核燃料组件的偏转有限的外围弹簧的间隔件及其制造方法
公开(公告)号：JP2013200307A
公开(公告)日：2013-10-03
申请号：JP2013057466
申请日：2013-03-21
申请人： Global Nuclear Fuel Americas Llc , グローバル・ニュークリア・フュエル・アメリカズ・エルエルシー
发明人： KATHRYN M MARTIN , SMITH DAVID G , THOMAS J RAMBACH
IPC分类号： G21C3/34 , G21C21/00
CPC分类号： G21C3/322 , G21C3/352 , G21C3/356 , Y02E30/38 , Y10T29/49826
摘要： PROBLEM TO BE SOLVED: To provide methods of making nuclear fuel assemblies, and fuel spacers for used in the fuel assemblies.SOLUTION: Fuel spacers include at least one specialized bathtub on an outer perimeter band. Specialized bathtubs include an elastic resistive extension and a corresponding deflection limiter on the same outer face of the perimeter band. The positioning, the spring constant, the length, the number, and other properties of the specialized bathtubs can be chosen based on the desired fuel assembly properties and expected transverse force in fuel shipping and operation, and the specialized bathtubs resiliently protect against the transverse force. The specialized bathtubs can be formed from a simplified stamp operation out of the perimeter band. The bathtubs can be placed on any position(s) on the perimeter band of example embodiment spacers used in nuclear fuel assemblies. The elastic resistive extension provides flexible resistance to a channel, and the deflection limiter provides rigid movement limitation beyond a particular threshold between the channel and the spacers.
摘要翻译：要解决的问题：提供制造核燃料组件的方法和用于燃料组件中的燃料间隔件。解决方案：燃料间隔件包括在外周带上的至少一个专门的浴缸。专用浴缸在周边带的相同外表面上包括弹性电阻延伸部和相应的偏转限制器。专门浴缸的定位，弹簧常数，长度，数量和其他性能可以根据燃油运输和运行中所需的燃料组装性能和预期的横向力来选择，而专门的浴缸弹性防止横向力。专门的浴缸可以从周边带的简化印章操作形成。浴缸可以放置在核燃料组件中使用的示例性实施例间隔物的周边带上的任何位置上。弹性阻力延伸提供对通道的柔性阻力，并且偏转限制器提供超出通道和间隔物之间特定阈值的刚性运动限制。

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