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:
Oct. 13, 2009
Filed:
Jun. 12, 2007
Yasuo Kabata, Kanagawa, JP;
Katsuya Yamashita, Tokyo, JP;
Yoshihiro Taniyama, Tokyo, JP;
Tadashi Tokumasu, Tokyo, JP;
Mikio Kakiuchi, Kanagawa, JP;
Koji Matsuyama, Kanagawa, JP;
Yasuo Kabata, Kanagawa, JP;
Katsuya Yamashita, Tokyo, JP;
Yoshihiro Taniyama, Tokyo, JP;
Tadashi Tokumasu, Tokyo, JP;
Mikio Kakiuchi, Kanagawa, JP;
Koji Matsuyama, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A rotary electric machine includes: a stator, a rotor and rotor fans contained in a closed type frame. The cooling gas is circulated in the frame by the rotor fans and warmed as a result of heat exchange with the stator and the rotor is cooled by a gas cooler. A heat pump is adapted to use cooling water or ambient air as high temperature heat source and liquid coolant as low temperature heat source. A liquid coolant circulation system for supplying liquid coolant to the heat exchange section of the gas cooler is provided. The liquid coolant is cooled by the heat pump and is supplied to the heat exchange section of the gas cooler by means of the coolant circulation system.