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:
Jul. 17, 2001
Filed:
Jun. 05, 2000
Akitomi Semba, Hitachi, JP;
Tadashi Sonobe, Iwaki, JP;
Takashi Watanabe, Hitachi, JP;
Yasuomi Yagi, Hitachi, JP;
Junji Sato, Hitachi, JP;
Shinsaku Hakuta, Hitachi, JP;
Hideaki Mori, Chiyoda, JP;
Eiji Tsuji, Hitachi, JP;
Kenichi Hattori, Hitachi, JP;
Atsushi Ishihara, Hitachi, JP;
Hitachi, LTD, Tokyo, JP;
Abstract
A rotating machine having a stator core and being equipped with coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near the rotating axis. The coolers are installed in a ventilation passage for the cooling medium and comprise a primary cooler installed in a primary ventilation passage extending from the exhaust side of a fan installed near the rotating axis to the suction side of the fan via the stator core, and a secondary cooler installed in a secondary ventilation passage extending from the exhaust side of the fan in the primary ventilation passage to the inside of the inner surface of the stator core via the stator core.