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:
Nov. 13, 2007
Filed:
Nov. 03, 2005
Kenichi Hattori, Hitachi, JP;
Kazumasa Ide, Hitachiota, JP;
Akiyoshi Komura, Hitachi, JP;
Takashi Watanabe, Hitachi, JP;
Ryoichi Shiobara, Hitachi, JP;
Yasuomi Yagi, Hitachi, JP;
Kengo Iwashige, Hitachi, JP;
Keiji Kobashi, Hitachinaka, JP;
Kenichi Hattori, Hitachi, JP;
Kazumasa Ide, Hitachiota, JP;
Akiyoshi Komura, Hitachi, JP;
Takashi Watanabe, Hitachi, JP;
Ryoichi Shiobara, Hitachi, JP;
Yasuomi Yagi, Hitachi, JP;
Kengo Iwashige, Hitachi, JP;
Keiji Kobashi, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric rotating machine capable of lowering the temperature of a rotor disposed, wherein at least one of closed ventilation loops for cooling is formed, one of the loops constituting a ventilation passage communicating with an exhaust side through a heat source of the end of the generator to a cooler, thereby to supply cooling wind to the rotor after it passes through the cooler.