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. 06, 1982
Filed:
Mar. 25, 1980
Werner Leistner, Berlin, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
The bundle of laminations in an electric generator as motor contains a plurality of lamination stacks arranged in series in an axial direction and a plurality of slots in which are arranged the conductors of the machine winding. In order to improve the dissipation of the heat losses from the bundle of laminations and the winding, laminations are contained in the stacks which have a slot width greater than the width of the conductors and which have on the slot floor a recess of a greater depth. Thus side ducts are formed alongside the conductor which are in connection with the air gap of the machine, and axial cooling channels are formed on the slot floor which open at least on one side into a radial cooling channel. By reversible packing of these laminations, the position of the lateral channels can be altered.