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:
Nov. 11, 2014
Filed:
Apr. 26, 2013
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro and Nuclear Power Co., Ltd, Seoul, KR;
Dong seok Oh, Daejeon, KR;
Tae hyun Chun, Daejeon, KR;
Wang kee In, Daejeon, KR;
Chang hwan Shin, Gyeonggi-do, KR;
Hyung kyu Kim, Daejeon, KR;
Young ho Lee, Daejeon, KR;
Kyung-Ho Yoon, Daejeon, KR;
Kang-Hee Lee, Daejeon, KR;
Jae-Yong Kim, Daejeon, KR;
Kun woo Song, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Korea Hydro and Nuclear Power Co., Ltd., Seoul, KR;
Abstract
A lower end plug for an annular nuclear fuel rod includes a support with a great slenderness ratio, a coolant inflow part with an inner inflow space and a plurality of inflow holes in a wall thereof so as to interact with the inflow space, coupled to a lower end of the annular nuclear fuel rod at an upper end thereof, and extending from an upper end of the support in a reverse conical shape such that the inflow space interact with an inner channel of the annular nuclear fuel rod, and a coupler extending from a lower end of the support and coupled with a handing tool of the annular nuclear fuel rod. Thus, although a bottoming phenomenon of the annular nuclear fuel rod occurs, the coolant can be supplied to the inner channel of the annular nuclear fuel rod through the inflow holes of the lower end plug.