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:
Jul. 12, 2022
Filed:
Dec. 09, 2019
Applicant:
Dana Tm4 Inc., Boucherville, CA;
Inventor:
Jean-Philippe Dextraze, La Prairie, CA;
Assignee:
DANA TM4 INC., Boucherville, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/04 (2006.01); F16F 15/28 (2006.01); H02K 1/18 (2006.01);
U.S. Cl.
CPC ...
H02K 7/04 (2013.01); F16F 15/28 (2013.01); H02K 1/187 (2013.01);
Abstract
A mass tuned damper for electric machines, particularly those with an external rotor and an internal stator in cantilever arrangement. The mass tuned damper includes a body with a predetermined mass and a mounting mechanism with a predetermined rigidity configured to couple the body onto a mounting surface of the stator. The mass tuned damper is configured, by varying the mass of body and/or the rigidity of the mounting mechanism, to oscillate at a first frequency equal to, but at least partially out of phase with, a resonance frequency of the stator.