US Patent Application 18139519. Fuel Assembly simplified abstract
Contents
Fuel Assembly
Organization Name
Inventor(s)
Kiyoshi Fujimoto of Tokyo (JP)
Takuji Nagayoshi of Tokyo (JP)
Takeshi Mitsuyasu of Tokyo (JP)
Fuel Assembly - A simplified explanation of the abstract
This abstract first appeared for US patent application 18139519 titled 'Fuel Assembly
Simplified Explanation
The patent application describes a fuel assembly for a nuclear reactor.
- The fuel assembly includes end plugs on the upper and lower ends of a fuel rod.
- A tie plate supports at least the upper portion of the end plug.
- The end plug has support protrusions on its surface.
- A closed-loop spring is inserted through an opening in the end plug and stored inside it.
- The remaining portion of the spring protrudes outside the end plug.
- The end plug is supported by the support protrusions and the closed-loop spring.
- They are in contact with the inner wall of an insertion hole in the tie plate.
Original Abstract Submitted
A fuel assembly according to the present invention includes an end plug disposed on both upper and lower end portions of a fuel rod, and a tie plate that supports at least an upper portion of the end plug. The end plug includes a plurality of support protrusions on a surface of the end plug, and a closed-loop spring having a portion that is inserted through an opening portion formed in the end plug and is stored in a single space formed in the end plug, and a remaining portion protruding to the outside of the end plug. The end plug is supported by the plurality of support protrusions and the closed-loop spring in a state in which the plurality of support protrusions and the closed-loop spring are in contact with an inner wall of an insertion hole formed in the tie plate.
