发明名称 |
COUPLING STRUCTURE FOR A FUEL ASSEMBLY |
摘要 |
<p>A coupling structure of a fuel assembly includes a screw coupling means to provide a coupling structure of a fuel assembly which prevents foreign matters from mixing in the fuel and in which no vertical play is generated at a fitting portion between a latch sleeve 10 and a lock key 20. The coupling structure of the fuel assembly includes: the latch sleeve 10 having a projecting portion 11 formed at an upper end portion thereof; an upper nozzle 30 having formed therein a latch sleeve installation hole 31 into which the upper end portion of the latch sleeve 10 is inserted; and the lock key 20 which is installed inside the latch sleeve installation hole 31, and which has an opening portion 21 formed on a bottom surface thereof, the opening portion 21 having a shape corresponding to the projecting portion 11. The screw coupling means screw couples the lock key 20 to the upper nozzle 30 with a male screw thread 23 formed on a side surface of the lock key 20.</p> |
申请公布号 |
EP2196997(B1) |
申请公布日期 |
2014.08.13 |
申请号 |
EP20080866538 |
申请日期 |
2008.12.11 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
HARADA, HIDENORI;YAMADA, MASAHIKO |
分类号 |
G21C3/33;G21C3/334 |
主分类号 |
G21C3/33 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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