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. 11, 1978
Filed:
Mar. 10, 1976
Applicant:
Inventors:
Joachim Boer, Mulheim an der Ruhr, DE;
Georg Frankenhauser, Mulheim an der Ruhr, DE;
Assignee:
Kraftwerk Union Aktiengesellschaft, Mulheim an der Ruhr, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 57 ; 310 62 ; 310260 ; 165107 ;
Abstract
Apparatus for cooling lamination stacks of electric machines comprising an enclosure for receiving cooling gas, the enclosure being disposable around a lamination stack and being formed with a plurality of gas inlet chambers, means for circulating cooling gas through the chambers and through a plurality of axially spaced cooling channels formed in the lamination stack, and an additional gas inlet chamber located at an end of the lamination stack for receiving the cooling gas in parallel with the plurality of chambers and for directing the cooling gas over the end of the lamination stack.