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:
May. 28, 1991
Filed:
Sep. 21, 1988
Applicant:
Inventors:
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ;
U.S. Cl.
CPC ...
310 61 ; 310 52 ; 310 54 ; 310 58 ;
Abstract
An excitation-type AC generator having stator and field coils cooled by a fluid passing through passageways within the rotating shaft of the rotor. The fluid, either engine oil or outside air, is drawn into a hole in the end of the rotating shaft, transported axially through a passageway in the shaft, then forced radially outward through channels in the rotating shaft into the areas surrounding the field and stator coils, absorbing the heat generated and eliminating any need for an externally mounted centrifugal fan.