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:
Mar. 17, 2020
Filed:
Jul. 09, 2018
Applicant:
Abb Research, Ltd., Zurich, SE;
Inventors:
Darren D. Tremelling, Apex, NC (US);
Yujing Liu, Ojersjo, SE;
Assignee:
ABB Schweiz AG, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/00 (2006.01); H02K 9/19 (2006.01); H02K 1/32 (2006.01); H02K 1/27 (2006.01); H02K 7/09 (2006.01); H02K 15/03 (2006.01);
U.S. Cl.
CPC ...
H02K 9/19 (2013.01); H02K 1/278 (2013.01); H02K 1/2786 (2013.01); H02K 1/32 (2013.01); H02K 7/09 (2013.01); H02K 15/03 (2013.01); Y10T 29/49012 (2015.01);
Abstract
Rotors for electrical machines and methods of fabricating the same are disclosed. Electrical machine rotors may include a hollow non-magnetic shaft, an active region, and a plurality of coolant passages extending within the active region. The hollow non-magnetic shaft may extend along an axis and have an exterior surface that defines a shaft space extending along the axis. At least a portion of the active region may be disposed within the shaft space.