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:
Aug. 09, 2011
Filed:
Feb. 27, 2009
Richard Zickermann, Villnachern, CH;
Richard Zickermann, Villnachern, CH;
Alstom Technology Ltd, Baden, CH;
Abstract
An air cooling arrangement for an electric engine comprises a rotor, a stator disposed co-axially on the rotor, and a partition disposed between the rotor and the stator and extending along a complete axial length of the rotor and mounted on the rotor so as to be in co-rotational communication with the rotor, the partition providing a segregated cooling air flow so as to prevent a radial flow of cooling air from the rotor to the stator. The arrangement further comprises at least one fan configured to provide cooling air to the rotor and the stator, wherein the partition partitions and segregates the at least one fan and provides an inner fan and an outer fan and extends between the inner fan and the outer fan.