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公开(公告)号：US10692613B2
公开(公告)日：2020-06-23
申请号：US15515132
申请日：2015-10-22
发明人： Seong Soo Kim , Jae Ik Kim , Sang Youn Jeon , Kyong Bo Eom , Dong Geun Ha , Jin Sun Kim , Joo Young Ryu , O Cheol Kwon , Su Pil Ryu , Hak In Lee , Joo Hong Chun , Ba Leum Kim
IPC分类号： G21C17/108 , G21C3/33 , G21C17/10 , G21C13/036
摘要： The present invention relates to a top nozzle and a nuclear reactor in which an in-core instrument, which is supposed to be inserted through a top head of a nuclear reactor, is inserted through a guide pin for an upper core plate. In a nuclear reactor including guide pins for aligning a top nozzle for a nuclear fuel assembly with an upper core plate of a nuclear reactor, a guide hole (210) is axially formed through the guide pins (200) and in-core instruments (10) are inserted through the guide holes (210).
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公开(公告)号：US10403406B2
公开(公告)日：2019-09-03
申请号：US15515130
申请日：2015-10-22
发明人： Jin Sun Kim , Jae Ik Kim , Sang Youn Jeon , Kyong Bo Eom , Dong Geun Ha , Seong Soo Kim , Joo Young Ryu , O Cheol Kwon , Su Pil Ryu , Hak In Lee , Joo Hong Chun , Ba Leum Kim
IPC分类号： G21C3/322 , G21C17/10 , G21C17/108 , G21C3/33 , G21C15/02
摘要： The present invention relates to a lower end fitting for reducing flow resistance due to an in-core instrument in a nuclear fuel assembly, that is, a lower end fitting (100) having a plurality of flow holes for a nuclear fuel assembly, in which the flow holes (121) are formed under an assembly groove in which an instrumentation tube (131) for a nuclear fuel assembly is inserted, and at least two or more flow holes (121) are formed at a predetermined distance from the central axis (C) of the instrumentation tube (131).
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