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. 10, 2026
Filed:
Sep. 21, 2021
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Yasutaka Harai, Tokyo, JP;
Satoru Kamohara, Tokyo, JP;
Tadakatsu Yodo, Tokyo, JP;
Shota Kobayashi, Tokyo, JP;
Shohei Otsuki, Tokyo, JP;
Nozomu Murakami, Tokyo, JP;
Wataru Nakazato, Tokyo, JP;
Takashi Hasegawa, Tokyo, JP;
Yutaka Tanaka, Tokyo, JP;
Tatsuo Ishiguro, Tokyo, JP;
Hironori Noguchi, Tokyo, JP;
Hideyuki Kudo, Tokyo, JP;
Takafumi Noda, Tokyo, JP;
Kazuhiro Yoshida, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
Provided is a nuclear reactor unit that can reduce a temperature increase in a reactor core at the occurrence of an abnormality with a simple structure. Included are a reactor core having radioactive fuel and causing the radioactive fuel to cause a nuclear reaction and a nuclear reactor vessel housing the reactor core and hermetically sealing the reactor core. The nuclear reactor vessel includes an inner shroud covering the entire periphery of the reactor core and an outer shroud covering the entire periphery of the inner shroud. A first space formed by the outer shroud and the inner shroud is in a vacuum condition. The inner shroud includes a main body and a communicating part placed in part of the main body and communicating the first space to a second space, which is a space inside the inner shroud, when the reactor core reaches a threshold temperature or higher.