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:
Apr. 16, 2013
Filed:
Feb. 27, 2009
Applicants:
Daisuke Kori, Hitachinaka, JP;
Akiyoshi Komura, Hitachi, JP;
Masahiro Hori, Hitachi, JP;
Inventors:
Assignee:
Hitachi, Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 9/00 (2006.01); H02K 9/06 (2006.01); H02K 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
For providing a permanent magnet type generator that has a limited inside temperature rise gradient even if the capacity thereof is increased and permits to reduce the size thereof, the present invention provides a ventilation means that increases the inner gas (air or cooling wind) quantity that is caused circulated via the heat exchanger causing to flow outer air is increased more at a region facing the outer air exhaust side in the heat exchanger than at the outer air inlet side.