Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 9, 2011
Patent Application Number
12394302
Date Filed
February 27, 2009
Patent Primary Examiner
Patent 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.
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