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. 01, 1997
Filed:
Dec. 19, 1994
Fred Wolf Staub, Niskayuna, NY (US);
Emil Donald Jarczynski, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
Cooling of the rotor endwindings in a dynamoelectric machine is improved by providing radially-extending ducts in the spacers located between the concentric end turns of the rotor winding. The ducts have an inlet located near the radially inward end of the spacer and an outlet located near the radially outward end of the spacer. The inlet can be formed on either an axially-oriented surface of the spacer or a circumferentially-oriented surface of the spacer. The ducts direct cooling air into the cavities between the end turns in such a manner that the circulation velocity in the cavities is increased. This results in increased heat removal capability.