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1. 发明授权

US4832905A Lower end fitting debris collector 失效
标题翻译：下端配件碎片收集器
公开(公告)号：US4832905A
公开(公告)日：1989-05-23
申请号：US181805
申请日：1988-04-15
申请人： William J. Bryan , Harold V. Lichtenberger
发明人： William J. Bryan , Harold V. Lichtenberger
IPC分类号： G21C3/32 , G21C3/322
CPC分类号： G21C3/3206 , G21C3/322 , Y02E30/38
摘要： A fuel assembly (10) has a lower end fitting debris collector (40) assembled in the form of a welded assembly of an "eggcrate" grid (21) and cast base (40) with hollow legs (42). Fastener seats (46) in hollow legs (42) permit guide tubes (14) with internally threaded ends to be joined to the upper surface of the lower end fitting debris collector (40) by means of slotted fasteners (50). Bevels (62) and notches (64) in the grid bars (26 and 24a, respectively), provide an embodiment with contoured seats for fuel rod end caps (22). Otherwise, end caps (22) rest on grid (21) at the intersection of slottedly interlocked bars (24 and 26). Thin strips (30) mounted in slots between bars (24) and bars (26) provide small debris catching openings in grid (21).
摘要翻译：燃料组件（10）具有以“蛋壳”网格（21）和具有中空腿部（42）的铸造基座（40）的焊接组件的形式组装的下端配件碎屑收集器（40）。具有中空腿部（42）的紧固件座（46）允许具有内螺纹端部的导管（14）通过开槽紧固件（50）连接到下端配件碎屑收集器（40）的上表面。栅格杆（26和24a）中的斜面（62）和凹口（64）分别为燃料棒端盖（22）提供具有轮廓座的实施例。否则，端盖（22）搁置在开槽互锁杆（24和26）的交叉处的格栅（21）上。安装在杆（24）和杆（26）之间的槽中的薄条（30）在栅格（21）中提供小的碎屑捕获开口。

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