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. 13, 2024
Filed:
Mar. 12, 2021
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Takashi Harakawa, Yokohama Kanagawa, JP;
Shinji Kubo, Yokohama Kanagawa, JP;
Yasuo Kabata, Yokohama Kanagawa, JP;
Yoshihiro Taniyama, Tokyo, JP;
Ryo Fuchimoto, Yokohama Kanagawa, JP;
Koji Ando, Yokohama Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Abstract
According to one embodiment, a rotor includes a coil slot, a sub-slot, and coil airflow paths arranged in the rotor axial direction. At least one coil airflow path among the coil airflow paths includes a first wall surface disposed on a core central portion side of a cooling gas inlet portion of the coil airflow path, a second wall surface disposed on the core central portion side of an inside of the coil airflow path, and located more on the rotor radially outward side and more on a core end portion side than the first wall surface, and a third wall surface configured to connect the first wall surface and the second wall surface, the third wall surface including a surface perpendicular to a rotor radial direction.