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. 16, 2003
Filed:
Sep. 13, 2001
Applicant:
Inventors:
Keizou Kawamura, Kasumigaura, JP;
Hideaki Mori, Chiyoda, JP;
Susumu Sasaki, Naka, JP;
Susumu Tajima, Hitachinaka, JP;
Masami Takano, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 9/00 ;
U.S. Cl.
CPC ...
H02K 9/00 ;
Abstract
An alternator for vehicles, provided with a stator, a rotor, a rectifier and a voltage regulator, and comprising turbulent flow generating members provided on heat transfer surfaces, through which heat generated from a field coil is transferred to a side of a bracket from a rotor, to generate convection of an air and turbulence of flow on downstream regions of recesses and projections, whereby a heat transfer performance from the rotor to the bracket is enhanced with a rotational frequency of the rotor.