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. 24, 1991
Filed:
Apr. 27, 1990
Applicant:
Inventor:
Werner Freise, Kaiserslautern, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310162 ; 310179 ; 310180 ; 310184 ; 322 59 ; 322 63 ;
Abstract
A stator-excited synchronous machine with an unwound, toothed rotor has a stator which is subdivided into sectors each of which is wound with an excitation winding. Permanent magnets are disposed between the stator sectors tangentially. The permanent magnets' magnetic fields in the stator sector yokes are directed in the circumferential direction, opposite to those of the adjoining excitation windings.