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. 19, 2009
Filed:
Jun. 02, 2004
Applicant:
Detlef Potoradi, Bad Neustadt/Saale, DE;
Inventor:
Detlef Potoradi, Bad Neustadt/Saale, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
To reduce the torque ripple of permanent-magnet excited synchronous motors () having tooth coils (), constructive means are proposed for damping or eliminating the fifth and/or seventh harmonic wave of the rotor field which mainly cause torque ripple.