US 11,837,917 B2
Method and apparatus for cooling a rotor assembly
Balamurugan Sridharan, Bangalore (IN); Ami Hatim, Bangalore (IN); Dhiraj Khushal Thakare, Bangalore (IN); and Sooraj Govindankutty Kocher, Bangalore (IN)
Assigned to GE Aviation Systems LLC, Grand Rapids, MI (US)
Filed by GE AVIATION SYSTEMS LLC, Grand Rapids, MI (US)
Filed on Jan. 28, 2022, as Appl. No. 17/587,516.
Prior Publication US 2023/0246495 A1, Aug. 3, 2023
Int. Cl. H02K 1/26 (2006.01); H02K 7/18 (2006.01)
CPC H02K 1/265 (2013.01) [H02K 7/1823 (2013.01); H02K 2201/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotor assembly for an electric machine comprising:
a rotor core comprising a cylindrical body defining an outwardly facing peripheral surface comprising a slotted portion having a set of slots defined by a set of rotor teeth projecting outwardly from the peripheral surface, each rotor tooth comprising a respective first distal tip and a respective first radial length extending radially from a center point of the rotor core to the first distal tip, the peripheral surface further comprising a non-slotted portion defining a second radial length, extending radially from the center point of the rotor core to the outwardly facing peripheral surface, the second radial length being uniform throughout the non-slotted portion;
wherein the first radial length is less than the second radial length.