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:
Mar. 08, 2005
Filed:
Jan. 08, 2003
Shinji Yamazaki, Hitachinaka, JP;
Wasei Horioka, Hitachinaka, JP;
Masami Takano, Hitachinaka, JP;
Susumu Tajima, Hitachinaka, JP;
Susumu Terumoto, Hitachinaka, JP;
Shinji Yamazaki, Hitachinaka, JP;
Wasei Horioka, Hitachinaka, JP;
Masami Takano, Hitachinaka, JP;
Susumu Tajima, Hitachinaka, JP;
Susumu Terumoto, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An automotive alternator comprises: a stator provided with a stator coil; a rotor supported for rotation in the stator to apply an alternative magnetic field to the stator; a regulator for regulating output; a rectifier for rectifying generated current; a plurality of housings holding the stator and the rotor; and a coolant path through which a coolant flows through at least one of the plurality of housings to transfer heat generated in the stator coil outside the automotive alternator. Fastening devices formed of a material having good heat conductance fasten the regulator and a heatsink for the regulator together to the housing at a position apart from the housing to transfer heat generated by the regulator to the housing. Thus, the automotive alternator can maintain a stable cooling ability in a hot atmosphere for a long time.