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公开(公告)号：US20170352438A1
公开(公告)日：2017-12-07
申请号：US14243954
申请日：2014-04-03
CPC分类号： G21C3/3305 , G21C3/322 , Y02E30/40
摘要： A nuclear fuel assembly having a bottom nozzle with protrusions that extend from the upstream (lower or fluid entry) and downstream (upper or fluid exit) side of a horizontally supported perforated flow plate. The protrusions have a funnel-like shape that gradually decreases the lateral flow area on the upstream side of the perforated flow plate and gradually increases the lateral flow area on the downstream side of the perforated plate. The protrusions on the downstream side are preferably recessed to accommodate the ends of the fuel rods.
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公开(公告)号：US09847144B1
公开(公告)日：2017-12-19
申请号：US14243954
申请日：2014-04-03
IPC分类号： G21C3/33
CPC分类号： G21C3/3305 , G21C3/322 , Y02E30/40
摘要： A nuclear fuel assembly having a bottom nozzle with protrusions that extend from the upstream (lower or fluid entry) and downstream (upper or fluid exit) side of a horizontally supported perforated flow plate. The protrusions have a funnel-like shape that gradually decreases the lateral flow area on the upstream side of the perforated flow plate and gradually increases the lateral flow area on the downstream side of the perforated plate. The protrusions on the downstream side are preferably recessed to accommodate the ends of the fuel rods.
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公开(公告)号：US11120918B2
公开(公告)日：2021-09-14
申请号：US15923491
申请日：2018-03-16
发明人： Artem Aleshin , David S. Huegel , William Cleary
IPC分类号： G21C3/32 , G21C19/307 , G21C3/33
摘要： A base portion for use in a bottom nozzle of a fuel assembly in a nuclear reactor includes a top surface, a bottom surface, and a plurality of vertical wall portions arranged in a generally squared grid-like pattern which extend between the bottom surface and the top surface and which define a plurality of non-circular passages passing between the bottom surface and the top surface through the base portion.
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