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:
Sep. 11, 2001
Filed:
Oct. 29, 1999
Hideaki Mori, Ibaraki, JP;
Tadashi Sonobe, Iwaki, JP;
Kado Miyakawa, Hitachi, JP;
Hiroshi Kimoto, Hitachinaka, JP;
Takashi Shibata, Hitachi, JP;
Shingo Yokoyama, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In order to provide an electric rotary machine in which the cooling performance can be improved without providing specific means on the flow path of cooling gas and without increasing the flow rate of the cooling gas, a plurality of through holes,perforated in each of plate-shaped conductors,forming a winding conductor,are arranged in plural rows of through holes,in the width direction of the plate-shaped conductor, a plurality of cooling gas flow paths,formed in the winding conductor,branch off into plural rows and the cooling area for the cooling gas is increased.