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. 26, 2014
Filed:
Mar. 10, 2011
Takashi Sato, Kanagawa, JP;
Kazunori Hashimoto, Kanagawa, JP;
Hirohide Oikawa, Kanagawa, JP;
Yasunobu Fujiki, Kanagawa, JP;
Makoto Akinaga, Kanagawa, JP;
Hisaki Sato, Kanagawa, JP;
Takashi Sato, Kanagawa, JP;
Kazunori Hashimoto, Kanagawa, JP;
Hirohide Oikawa, Kanagawa, JP;
Yasunobu Fujiki, Kanagawa, JP;
Makoto Akinaga, Kanagawa, JP;
Hisaki Sato, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to an embodiment, a pressurized water reactor plant has a primary system which includes: a reactor vessel for housing a reactor core which is cooled by a primary coolant, a single steam generator, a hot leg pipe for connecting the reactor vessel and the steam generator, cold leg pipes, at least two primary coolant pumps, and a pressurizer for pressurizing the primary coolant pressure boundary in which the primary coolant flows. The plant also has: a passive cooling and depressurization system which is a primary depressurization means for equalizing the primary system pressure to the secondary system pressure at the time of a tube rupture accident of the steam generator, and a reactor containment vessel containing the primary system and cooling the primary system by air cooling. Thus, a compact pressurized water rector with high economic efficiency, safety, and reliability can be provided.