发明名称 |
SHOCK-ABSORBING DEVICE FOR FUEL ASSEMBLY AND FUEL ASSEMBLY HOUSING CONTAINER |
摘要 |
A fuel assembly 20 is constituted by combining a plurality of fuel rods 21, holding the fuel rods 21 by a plurality of support grids 22, and arranging a lower nozzle 24 and an upper nozzle 23 at opposite ends of the fuel rods 21. A shock-absorbing device 10 for a fuel assembly is fitted to the lower nozzle 24 and the upper nozzle 23. The shock-absorbing device 10 for a fuel assembly is constituted a nozzle support 12 fitted to a depression 24U of the lower nozzle 24 and a depression 23U of the upper nozzle 23, and a buffer 11 combined with the nozzle support 12, with stiffness thereof in a longitudinal direction of the fuel rods 21 being equal to or lower than that of the nozzle support 12. |
申请公布号 |
EP2352154(B1) |
申请公布日期 |
2016.02.17 |
申请号 |
EP20090828919 |
申请日期 |
2009.08.25 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
SAITO, YOSHIYUKI;YOKOYAMA, TAKESHI;KISHIMOTO, JUNICHI |
分类号 |
G21F5/08;G21F5/012;G21F9/36 |
主分类号 |
G21F5/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|