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:
Nov. 03, 1981
Filed:
Oct. 25, 1979
Rene Damiron, Cravanche, FR;
Roger Gillet, Belfort, FR;
Jean-Francois Heuillard, Cravanche, FR;
Gilbert Ruelle, Belfort, FR;
Alsthom-Atlantique, Paris, FR;
Abstract
The invention relates to a gas-cooled rotor for an electric machine. At each axially separated rotor slot, cooling ducts are supplied with cold gas by the duct of a lower cavity and form a parallel network in the upper levels (B) of the slot cavity (1). Said network includes a radial inlet duct (6), a plurality of transverse ducts (8) constituted by grooves in the conductor strips and a radial outlet duct (7) so as to increase the heat exchange surface at these upper levels and to avoid excessive heating thereof despite the heating of the gas in the lower levels (A). Application to turbo alternator rotors.