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:
Apr. 09, 2002
Filed:
Jun. 28, 1999
Applicant:
Inventors:
Gunnar Kylander, Vasteras, SE;
Mats Leijon, Vasteras, SE;
Assignee:
ABB AB, Vasteras, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/00 ;
U.S. Cl.
CPC ...
H02K 9/00 ;
Abstract
A rotating electric machine ( ) having a stator ( ) provided with windings and a rotor ( ) provided with field windings and with salient poles ( ) forming pole gaps ( ) between the pole shoes ( ) of the poles ( ), which rotor ( ) is arranged to be cooled by air flowing axially through the pole gaps ( ) of the rotor ( ), wherein each pole gap ( ) between the pole shoes ( ) is covered by at least one covering member ( ) and that the air gap ( ) is equipped with a sealing ring ( ) to limit axial air flow.