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1. 发明公开

EP3973546A2 DEBRIS FILTERING SKIRT ARRANGEMENT FOR NUCLEAR FUEL ASSEMBLY BOTTOM NOZZLE AND BOTTOM NOZZLE INCLUDING SAME 审中-实审
公开(公告)号：EP3973546A2
公开(公告)日：2022-03-30
申请号：EP20824712.2
申请日：2020-05-22
申请人： Westinghouse Electric Company LLC
发明人： HUEGEL, David S. , ALESHIN, Yuriy , DUNCAN, Caroline K. , BREWSTER, Robert A. , ALESHIN, Artem
IPC分类号： G21C3/12 , G21C3/32 , G21C3/33 , B01D29/00

2. 发明授权

EP3358571B1 FAST NEUTRON REACTOR FUEL ROD 失效
公开(公告)号：EP3358571B1
公开(公告)日：2020-07-15
申请号：EP16852161.5
申请日：2016-05-05
申请人： State Atomic Energy Corporation "Rosatom" on Behalf of The Russian Federation
发明人： FORSTMAN, Vladimir Aleksandrovich
IPC分类号： G21C3/338 , G21C3/12 , G21C1/02 , G21C15/06 , G21C15/28

3. 发明授权

EP2628159B1 NUCLEAR FUEL ASSEMBLY HOLD DOWN SPRING 有权
公开(公告)号：EP2628159B1
公开(公告)日：2018-07-18
申请号：EP11832998.6
申请日：2011-09-26
申请人： Westinghouse Electric Company LLC
发明人： LEE, Yu, Chung , CHOI, Joonhyung
IPC分类号： G21C3/33 , G21C3/12
CPC分类号： G21C3/331 , G21C3/12 , G21C3/3315 , Y02E30/40
摘要： A nuclear fuel assembly having a plurality of multi-leaf hold down spring sets extending from a top nozzle. Each spring set consists of a multiple number of springs leafs in order to provide a large working range of spring deflection. Each spring leaf has a straight, flat base section followed by a straight, flat tapered beam with a secondary spring set having a curvature at its peripheral end.

4. 发明公开

EP1677920A4 PROCESS FOR MANUFACTURING ENHANCED THERMAL CONDUCTIVITY OXIDE NUCLEAR FUEL AND THE NUCLEAR FUEL 有权
标题翻译：用于生产OXIDKERNBRENNSTOFF具有改进的导电性及核燃料
公开(公告)号：EP1677920A4
公开(公告)日：2007-11-14
申请号：EP04809988
申请日：2004-10-21
申请人： FRAMATOME ANP INC
发明人： MCCOY JOHN KEVIN
IPC分类号： G21C3/62 , G21C20060101 , G21C3/04 , G21C3/07 , G21C3/12 , G21C19/00
CPC分类号： G21C3/62 , Y02E30/38
摘要： A nuclear fuel and a method to produce a nuclear fuel wherein a porous uranium dioxide arrangement is provided, the arrangement is infiltrated with a precursor liquid and the arrangement is thermally treated such the porous uranium dioxide arrangement is infiltrated with a precursor liquid, followed by a thermal treating of the porous uranium dioxide arrangement with the infiltrated precursor liquid such that the precursor liquid is converted to a second phase.

5. 发明公开

EP0327944A3 Guide pin assembly for a nuclear reactor 失效
标题翻译：引导组件用于核反应堆
公开(公告)号：EP0327944A3
公开(公告)日：1989-10-18
申请号：EP89101712.1
申请日：1989-02-01
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Hornak, Leonard Paul , Meuschke, Robert Edward
IPC分类号： G21C3/12 , G21C5/06
CPC分类号： G21C5/06 , G21C3/12 , G21Y2002/501 , G21Y2004/30 , G21Y2004/502 , Y02E30/40
摘要： A guide pin assembly (23) for aligning the upper hold down plate (9) of the top nozzle (3) of a fuel assembly (1) with the upper core plate (15) of a pressurized water nuclear reactor includes a guide pin (27), a nut (29) and a locking cup (31). The guide pin (27) includes a nose (33), a threaded portion (35), a shaft (37), and an end (39). The radial alignment section (51) of the shaft (37) has a diameter that is approximately the diameter of a bore (21) in the upper core plate (15) of a nuclear reactor. The lower section (49) of the shaft (37) has a diameter less than that of the radial alignment section (51). The end (39) includes a top (53) having a diameter greater than that of the diameter of the bore (21) in the upper core plate (15). The guide pin (27) is insertable within a bore (19) in the upper hold down plate (9) of the top nozzle (3) of the fuel assembly (1) and through the bore (21) in the upper core plate (15) so that the nose (33) and at least a portion of the threaded portion (35) of the guide pin (27) protrude above the upper core plate (15). The nut (29) is adapted to be threaded onto the threaded outer surface (45) of the threaded portion (35) of the guide pin (27). The locking cup (31) is securable about the nut (29) and is adapted to engage engagement apparatus (41) on the nose (33) of the guide pin (27) when the nut (29) has been tightened onto the threaded portion (35) of the guide pin (27) so that the bottom (75) of the nut (29) abuts the upper surface (77) of the upper core plate (15).

6. 发明公开

EP2628159A4 NUCLEAR FUEL ASSEMBLY HOLD DOWN SPRING 有权
标题翻译： NIEDERDRUCKFEDERFÜREIN KERNBRENNELEMENT
公开(公告)号：EP2628159A4
公开(公告)日：2017-08-02
申请号：EP11832998
申请日：2011-09-26
申请人： WESTINGHOUSE ELECTRIC CO LLC
发明人： LEE YU CHUNG , CHOI JOONHYUNG
IPC分类号： G21C3/33 , G21C3/12
CPC分类号： G21C3/331 , G21C3/12 , G21C3/3315 , Y02E30/40
摘要： A nuclear fuel assembly having a plurality of multi-leaf hold down spring sets extending from a top nozzle. Each spring set consists of a multiple number of springs leafs in order to provide a large working range of spring deflection. Each spring leaf has a straight, flat base section followed by a straight, flat tapered beam with a secondary spring set having a curvature at its peripheral end.
摘要翻译：核燃料组件具有从顶部喷嘴延伸的多个多片压制弹簧组。每个弹簧组由多个弹簧叶片组成，以便提供较大的弹簧偏转工作范围。每个弹簧片具有平直的基部部分，接着是具有次级弹簧组的直的扁平锥形梁，所述次级弹簧组在其外周端具有曲率。

7. 发明公开

EP2184742A1 Tie plate and corresponding fuel assembly 有权
标题翻译： Ankerplatte und mit einer derartigen Ankerplatte versehenesBrennstabbündel
公开(公告)号：EP2184742A1
公开(公告)日：2010-05-12
申请号：EP08305784.4
申请日：2008-11-07
申请人： Areva NP
发明人： Friedrich, Erhard , Schneider, Manfred
IPC分类号： G21C3/12 , G21C5/06 , G21C19/20
CPC分类号： G21C3/12 , G21C3/3315 , G21C5/06 , G21C19/20 , G21Y2002/207 , G21Y2002/303 , G21Y2002/304 , G21Y2004/30 , G21Y2004/504 , Y02E30/40
摘要： A tie plate (15) for a PWR nuclear fuel assembly has at least one positioning hole (29) for receiving and surrounding a positioning pin (31) projecting from a nuclear core plate (7). The positioning hole (29) extends along a central axis (A) and has a maintaining portion (33) and a guiding portion (35). The guiding portion (35) widens radially in each radial direction from the maintaining portion (33) to an end surface (37) of the tie plate (15). The guiding portion (35) is connected to the end surface (37) by a capture contour (39). The capture contour (39) is non-circular and has at least a part (41) of increased radial distance (R3) with respect to the central axis (A).
摘要翻译：用于PWR核燃料组件的连接板（15）具有用于接收和围绕从核心板（7）突出的定位销（31）的至少一个定位孔（29）。定位孔（29）沿着中心轴线（A）延伸并具有保持部分（33）和引导部分（35）。引导部分（35）从维持部分（33）到连接板（15）的端表面（37）沿径向方向逐渐变宽。引导部分（35）通过捕获轮廓（39）连接到端表面（37）。捕获轮廓（39）是非圆形的并且具有相对于中心轴线（A）具有增加的径向距离（R3）的至少一部分（41）。

8. 发明公开

EP0981135A1 Upper hold-down spring structure for a nuclear reactor fuel assembly 有权
标题翻译： Obere NiederhaltefederstrukturfürKernreaktorbrennstabbündel
公开(公告)号：EP0981135A1
公开(公告)日：2000-02-23
申请号：EP98306623.4
申请日：1998-08-19
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： Murakami, Kazuo, Kobe Shipyard & Machinery Works , Shiraishi, Shinichi, Kobe Shipyard & Mach.Works , Izumi, Kiyoshi
IPC分类号： G21C3/12
CPC分类号： G21C3/12 , G21Y2002/104 , G21Y2004/201 , G21Y2004/305 , Y02E30/40
摘要： An upper hold-down spring structure for a nuclear reactor fuel assembly. A hold down spring 20 mounted on an upper surface of an upper nozzle 11 of a fuel assembly for a pressurized water reactor is composed of an upper plate spring 21 having plastic spring characteristics and a lower plate spring 23, base ends of which are fixed with a fastening bolt 18 at a common position. The upper spring 21 and the lower spring 23 are made of precipitation hardened nickel base alloy and the thickness of the springs are determined so as to keep the stresses generated less sensitive to stress corrosion cracking.
摘要翻译：用于核反应堆燃料组件的上压紧弹簧结构。安装在压水反应堆用燃料组件的上喷嘴11的上表面上的按压弹簧20由具有塑料弹簧特性的上板簧21和下板簧23组成，底板弹簧21的基端固定有在同一位置的紧固螺栓18。上弹簧21和下弹簧23由沉淀硬化的镍基合金制成，弹簧的厚度被确定为保持对应力腐蚀开裂不敏感的应力。

9. 发明授权

EP0543253B1 Reaktorkern eines Kernreaktors und Kernreaktorbrennelement mit leichtgängigem Einsetzen 失效
标题翻译：一个核反应堆的堆芯和核反应堆燃料元件具有光滑插入
公开(公告)号：EP0543253B1
公开(公告)日：1996-03-06
申请号：EP92119167.2
申请日：1992-11-09
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： Steinke, Alexander , Bökers, Franz-Josef , Rudolph, Matthias , Ringleb, Günter
IPC分类号： G21C3/12 , G21C5/06 , G21C19/20
CPC分类号： G21C5/06 , G21C3/12 , G21C19/20 , G21Y2002/40 , G21Y2004/30 , Y02E30/40

10. 发明公开

EP0589311A1 Upwarding biased fuel assembly 失效
标题翻译： Nach obengedrücktesBrennstabbünde。
公开(公告)号：EP0589311A1
公开(公告)日：1994-03-30
申请号：EP93114610.4
申请日：1993-09-10
申请人： Siemens Power Corporation
发明人： Yates, Jack
IPC分类号： G21C3/12 , G21C5/06
CPC分类号： G21C3/12 , G21C5/06 , Y02E30/40
摘要： An arrangement for supporting a fuel assembly (10) of a nuclear reactor has upper and lower reactor core support plates (14,15), upper and lower tie plates (22,23) for supporting fuel rods and a coolant path through the assembly. The improvement comprises a redesigned lower tie plate (23) for providing an upward biasing force to the assembly (10) for forcing the upper tie plate (22) against the upper reactor core support plate (14). The biasing force is in the same direction as a levitation force caused by coolant flow through the assembly (10). In a preferred form, the tie plate (23) includes upper and lower sections (30,31) with hold-up springs (25) disposed between the two sections (30,31).
摘要翻译：用于支撑核反应堆的燃料组件（10）的装置具有上和下反应堆堆芯支撑板（14,15），用于支撑燃料棒的上部和下部固定板（22,23）以及通过该组件的冷却剂路径。改进包括重新设计的下连接板（23），用于向组件（10）提供向上的偏压力，以迫使上连接板（22）抵靠上反应堆堆芯支撑板（14）。偏压力与冷却剂流过组件（10）所产生的悬浮力相同。在优选的形式中，连接板（23）包括具有设置在两个部分（30,31）之间的带有弹簧（25）的上部和下部（30,31）。

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