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:
Feb. 24, 1987
Filed:
Sep. 07, 1984
Sadao Hattori, Nagoya, JP;
Central Research Institute of Electric Power Industry, Toshiba, , US;
Hitachi, Ltd., Kanagawa, JP;
Abstract
A double tank type fast breeder reactor including a reactor vessel, and a tank of a secondary cooling system located outside the reactor vessel. The reactor vessel contains a core and installations of a primary cooling system, and the tank contains circulation pumps of the secondary cooling system and steam generators alternately located in the tank, and a body of sodium serving as a secondary coolant located at outer peripheries of the circulation pumps and steam generators. The tank includes an annular portion defined in the tank between walls of the tank and reactor vessel serving as a path of circulation of the secondary coolant. Each steam generator is small in width and has a shroud surrounding heat transfer tubes defining a narrow annulus between one side wall thereof and the reactor vessel and another narrow annulus between an opposite side wall thereof and the tank, and each circulation pump of the secondary cooling system has a shroud defining a narrow annulus between one side wall thereof and the reactor vessel and another narrow annulus between an opposite side wall thereof and the tank.