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:
Feb. 14, 1984
Filed:
Nov. 17, 1981
Applicant:
Inventors:
Pierre Perrier, Ramonville-Saint Agne, FR;
Mathieu Mattei, Ramonville-Saint Agne, FR;
Assignee:
Equipements Automobiles Marchal, Issy-les-Moulineaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 61 ; 310 62 ; 310 / ; 310 / ;
Abstract
An alternator has a rotary inductor carrying permanent magnets rotatable about field windings of a fixed armature and supported on a hollow shaft. The shaft forms a housing for a cooling fan and optionally also an electronic power switching device for rectifying and regulating the alternator output. The fan inside the shaft thus cools the switching device. A separate fan incorporated in a radially outer portion of the inductor rotor cools the field windings of the armature.