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1. 发明授权

US4655995A Reversible BWR fuel assembly and method of using same 失效
标题翻译：可逆式BWR燃油组件及其使用方法
公开(公告)号：US4655995A
公开(公告)日：1987-04-07
申请号：US609252
申请日：1984-05-11
申请人： Thomas R. Freeman , John F. Wilson , Ronald P. Knott
发明人： Thomas R. Freeman , John F. Wilson , Ronald P. Knott
IPC分类号： G21C3/32 , G21C3/33 , G21C19/00
CPC分类号： G21C3/3315 , G21C3/32 , G21C3/3305 , Y02E30/40
摘要： A fuel assembly, particularly advantageous for use with a BWR, wherein the fuel bundle is adapted to be inserted into an envelope formed from a flow channel and a lower nozzle assembly. The fuel bundle is essentially axially symmetrical having identical top and bottom tie plates. Within the fuel bundle, alternate fission gas plenums are disposed at the top and bottom of the bundle respectively.During the refueling operation, the fuel bundle is removed from the reactor core, axially inverted and reinserted into the core for continued burn up. The invention takes advantage of the reactivity increase possible in a BWR when a partially burned fuel bundle is inverted.
摘要翻译：一种燃料组件，特别有利于与BWR一起使用，其中燃料束适于插入由流动通道和下喷嘴组件形成的外壳中。燃料束基本上是轴对称的，具有相同的顶部和底部连接板。在燃料束内，交替的裂变气体增压室分别设置在束的顶部和底部。在加油操作期间，将燃料束从反应堆芯中取出，轴向倒置并重新插入到芯中以继续燃烧。当部分燃烧的燃料束反转时，本发明利用在BWR中可能的反应性增加。

2. 发明授权

US4888151A Reconstitutable control assembly having removable control rods with detachable split upper end plugs 失效
标题翻译：可组装的控制组件具有可拆卸的分离上端塞的可拆卸的控制杆
公开(公告)号：US4888151A
公开(公告)日：1989-12-19
申请号：US284566
申请日：1988-12-15
申请人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
发明人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
IPC分类号： G21C7/117
CPC分类号： G21C7/117 , G21Y2002/101 , G21Y2002/402 , G21Y2004/301 , G21Y2004/50 , Y02E30/39
摘要： A reconstitutable control assembly has a spider structure which supports control rods by detachable attachment joints. Each attachment joint includes a hollow connecting finger on the spider structure and an elongated detachable split upper end plug on each control rod. The split upper end plug includes a pair of separate upper and lower plug portions. The upper plug portion has upper, middle and lower sections, whereas the lower plug portion has upper, middle and lower segments. The upper section of the upper plug portion is rigidly attached to the connecting finger on the spider structure, whereas the lower segment of the lower plug portion is rigidly connected to the control rod. Also, the lower section of the upper plug portion and the middle segment of the lower plug portion have complementary threads defined thereon for rigidly threadably attaching the upper and lower plug portions to one another. Two embodiments of locking features can be used in conjunction with the upper and lower plug portions for locking them together so as to resist their unthreading from one another.
摘要翻译：可重构的控制组件具有通过可拆卸的连接接头支撑控制杆的蜘蛛结构。每个附接接头包括在蜘蛛结构上的空心连接指状物和每个控制杆上的细长可拆卸分离上端塞。分开的上端塞包括一对分离的上部和下部插塞部分。上塞部分具有上部，中部和下部，而下部塞部具有上部，中部和下部。上塞部分的上部刚性地附接到蜘蛛结构上的连接指状物，而下塞部分的下部段刚性地连接到控制棒上。此外，上塞部分的下部分和下塞部分的中段具有限定在其上的互补螺纹，用于将上部和下部塞部分彼此刚性地螺纹连接。锁定特征的两个实施例可以与上部和下部塞子部分结合使用，以将它们锁定在一起，以抵抗它们彼此的相互脱开。

3. 发明授权

US4993864A Reconstitutable control assembly having removable control rods with detachable split upper end plugs 失效
标题翻译：可组装的控制组件具有可拆卸的分离上端塞的可拆卸的控制杆
公开(公告)号：US4993864A
公开(公告)日：1991-02-19
申请号：US426939
申请日：1989-10-26
申请人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
发明人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
IPC分类号： G21C7/117
CPC分类号： G21C7/117 , G21Y2002/101 , G21Y2002/402 , G21Y2004/301 , G21Y2004/50 , Y02E30/39 , Y10T403/4983 , Y10T403/556 , Y10T403/56 , Y10T403/68
摘要： A reconstitutable control assembly has a spider structure which supports control rods by detachable attachment joints. Each attachment joint includes a hollow connecting finger on the spider structure and an elongated detachable split upper end plug on each control rod. The split upper end plug includes a pair of separate upper and lower plug portions. The upper plug portion has upper, middle and lower sections, whereas the lower plug portion has upper, middle and lower segments. The upper section of the upper plug portion is rigidly attached to the connecting finger on the spider structure, whereas the lower segment of the lower plug portion is rigidly connected to the control rod. Also, the lower section of the upper plug portion and the middle segment of the lower plug portion have complementary threads defined thereon for rigidly threadably attaching the upper and lower plug portions to one another. Two embodiments of locking features can be used in conjunction with the upper and lower plug portions for locking them together so as to resist their unthreading from one another.
摘要翻译：可重构的控制组件具有通过可拆卸的连接接头支撑控制杆的蜘蛛结构。每个附接接头包括在蜘蛛结构上的空心连接指状物和每个控制杆上的细长可拆卸分离上端塞。分开的上端塞包括一对分离的上部和下部插塞部分。上塞部分具有上部，中部和下部，而下部塞部具有上部，中部和下部。上塞部分的上部刚性地附接到蜘蛛结构上的连接指状物，而下塞部分的下部段刚性地连接到控制棒上。此外，上塞部分的下部和下塞部分的中段具有限定在其上的互补螺纹，用于将上部和下部塞部分彼此刚性地螺纹连接。锁定特征的两个实施例可以与上部和下部塞子部分结合使用，以将它们锁定在一起，以抵抗它们彼此的相互脱开。

4. 发明授权

US5141711A Reconstitutable control assembly having removable control rods with detachable split upper end plugs 失效
标题翻译：可组装的控制组件具有可拆卸的分离上端塞的可拆卸的控制杆
公开(公告)号：US5141711A
公开(公告)日：1992-08-25
申请号：US732373
申请日：1991-07-18
申请人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
发明人： Robert K. Gjertsen , Ronald P. Knott , James A. Sparrow
IPC分类号： G21C3/326 , G21C7/10 , G21C7/117
CPC分类号： G21C7/117 , G21Y2002/101 , G21Y2002/402 , G21Y2004/30 , G21Y2004/301 , G21Y2004/50 , Y02E30/39
摘要： A reconstitutable control assembly has a spider structure which supports control rods by detachable attachment joints. Each attachment joint includes a hollow connecting finger on the spider structure and an elongated detachable split upper end plug on each control rod. The split upper end plug includes a pair of separate upper and lower plug portions. The upper plug portion has upper, middle and lower sections, whereas the lower plug portion has upper, middle and lower segments. The upper section of the upper plug portion is rigidly attached to the connecting finger on the spider structure, whereas the lower segment of the lower plug portion is rigidly connected to the control rod. Also, the lower section of the upper plug portion and the middle segment of the lower plug portion have complementary threads defined thereon for rigidly threadably attaching the upper and lower plug portions to one another. Two embodiments of locking features can be used in conjunction with the upper and lower plug portions for locking them together so as to resist their unthreading from one another.
摘要翻译：可重构的控制组件具有通过可拆卸的连接接头支撑控制杆的蜘蛛结构。每个附接接头包括在蜘蛛结构上的空心连接指状物和每个控制杆上的细长可拆卸分离上端塞。分开的上端塞包括一对分离的上部和下部插塞部分。上塞部分具有上部，中部和下部，而下部塞部具有上部，中部和下部。上塞部分的上部刚性地附接到蜘蛛结构上的连接指状物，而下塞部分的下部段刚性地连接到控制棒上。此外，上塞部分的下部和下塞部分的中段具有限定在其上的互补螺纹，用于将上部和下部塞部分彼此刚性地螺纹连接。锁定特征的两个实施例可以与上部和下部塞子部分结合使用，以将它们锁定在一起，以抵抗它们彼此的相互脱开。

5. 发明授权

US4585616A Nuclear fuel spacer grid with improved outer straps 失效
标题翻译：具有改进外带的核燃料间隔栅格
公开(公告)号：US4585616A
公开(公告)日：1986-04-29
申请号：US473515
申请日：1983-03-09
申请人： Edmund E. DeMario , Ronald P. Knott
发明人： Edmund E. DeMario , Ronald P. Knott
IPC分类号： G21C3/34 , G21C3/356
CPC分类号： G21C3/3563 , Y02E30/40
摘要： A nuclear fuel spacer grid with improved outer straps. The grid has an egg-crate array of interleaved grid straps creating cells for enclosing the fuel rods. The grid also has four outer straps connected together in a square-shaped array surrounding the grid strap's heightwise edges. The outer straps have a central portion to which is attached the grid straps' heightwise edges. The outer straps also have a top and a bottom resilient lengthwise border portion extending vertically beyond and horizontally outwardly beyond their associated outer straps central portions.
摘要翻译：具有改进外带的核燃料间隔栅格。网格具有交错网格带的蛋箱阵列，产生用于封闭燃料棒的电池。网格还具有围绕网格带的高度边缘的四边形阵列连接在一起的四个外带。外带具有中心部分，其连接有网格带的高度边缘。外带还具有垂直延伸并水平向外延伸超过其相关外带中心部分的顶部和底部的弹性纵向边界部分。

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