The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Jun. 26, 2008
Kang-hee Lee, Daejeon, KR;
Hyung-kyu Kim, Daejeon, KR;
Kyung-ho Yoon, Daejeon, KR;
Young-ho Lee, Daejeon, KR;
Jae-yong Kim, Daejeon, KR;
Tae-hyun Chun, Daejeon, KR;
Wang-kee IN, Daejeon, KR;
Dong-seok OH, Daejeon, KR;
Chang-hwan Shin, Gyeonggi-do, KR;
Kang-Hee Lee, Daejeon, KR;
Hyung-Kyu Kim, Daejeon, KR;
Kyung-Ho Yoon, Daejeon, KR;
Young-Ho Lee, Daejeon, KR;
Jae-Yong Kim, Daejeon, KR;
Tae-Hyun Chun, Daejeon, KR;
Wang-Kee In, Daejeon, KR;
Dong-Seok Oh, Daejeon, KR;
Chang-Hwan Shin, Gyeonggi-do, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Abstract
A spacer grid can be applied to close-spaced nuclear fuel rods. The spacer grid is directed to solve the problem in which, as the outer diameter of each nuclear fuel rod increases due to the use of dual-cooled nuclear fuel rods for improving cooling performance and obtaining high combustion and high output power, the gap between the neighboring nuclear fuel rods is narrowed to thus make it impossible to use an existing spacer grid. The spacer grid is a combination of unit grid straps, each of which has supports for supporting each of the nuclear fuel rods set in a narrow array and has a sheet shape, which are combined with each other. The supports are located at positions shifted from the longitudinal central line of each unit grid strap toward sub-channels.