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:
Jul. 09, 2013
Filed:
Jul. 29, 2008
Jae-yong Kim, Daejeon, KR;
Hyung-kyu Kim, Daejeon, KR;
Kyung-ho Yoon, Daejeon, KR;
Young-ho Lee, Daejeon, KR;
Kang-hee Lee, Daejeon, KR;
Jae-Yong Kim, Daejeon, KR;
Hyung-Kyu Kim, Daejeon, KR;
Kyung-Ho Yoon, Daejeon, KR;
Young-Ho Lee, Daejeon, KR;
Kang-Hee Lee, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Abstract
A spacer grid for dual-cooling nuclear fuel rods arranged at a narrow interval. The spacer grid solves the problem in which, since the dual-cooling nuclear fuel rods are used to improve the cooling performance and stability of nuclear fuel and obtain high burnup and output, the outer diameter of each dual-cooling nuclear fuel rod is increased, and thus the gap between each dual-cooling nuclear fuel rod and the grid strap is decreased. The spacer grid includes first grid straps and second grid straps, which are crossed and arranged in transverse and longitudinal directions at regular intervals and have the shape of a flat strip, and support structures, which are fitted into the first and second grid straps around intersections of the first and second grid straps so as to support the dual-cooling nuclear fuel rods.