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:
Aug. 18, 2015
Filed:
Feb. 13, 2012
Applicants:
Heinz Lendenmann, Vasteras, SE;
David Lindberg, Vasteras, SE;
Viktor Nyden, Shanghai, CN;
Peter Isberg, Vasteras, SE;
Inventors:
Heinz Lendenmann, Vasteras, SE;
David Lindberg, Vasteras, SE;
Viktor Nyden, Shanghai, CN;
Peter Isberg, Vasteras, SE;
Assignee:
ABB RESEARCH LTD., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/04 (2006.01); H02K 9/28 (2006.01); H02K 11/00 (2006.01);
U.S. Cl.
CPC ...
H02K 9/28 (2013.01); H02K 11/0047 (2013.01);
Abstract
A cooling system for a brushed electrical machine includes a cooler configured to cool down a rotor and a commutator of the machine. There is a controller configured to adjust the cooling effect of the cooler in response to monitored rotor and commutator temperatures. The cooler includes a fan and an auxiliary motor configured to rotate the fan.