US 12,132,381 B2
Air gap scavenging system for oil cooled electric motor
Steven Vanhee, Hooglede (BE); and Dolf Vandamme, Roeselare (BE)
Assigned to DANA LIMITED, Maumee, OH (US)
Filed by Dana Limited, Maumee, OH (US)
Filed on Dec. 7, 2023, as Appl. No. 18/532,817.
Application 18/532,817 is a continuation of application No. 17/446,933, filed on Sep. 3, 2021, granted, now 11,876,434.
Prior Publication US 2024/0106304 A1, Mar. 28, 2024
Int. Cl. H02K 9/193 (2006.01); H02K 9/26 (2006.01); H02K 9/28 (2006.01)
CPC H02K 9/193 (2013.01) [H02K 9/26 (2013.01); H02K 9/28 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system, comprising:
a ring covering a radial air gap between a stator and a rotor, the ring configured to route coolant out of the radial air gap via one or more channels; and
a scavenge pump fluidly coupled to the one or more channels, the scavenge pump configured to remove coolant from the radial air gap via the one or more channels,
wherein the ring includes a plurality of intake holes distributed along a circumference of the ring, the intake holes penetrating from a first side of the ring to a second side of the ring, and
wherein the one or more channels include a first plurality of fluid lines, wherein each fluid line of the first plurality of fluid lines is coupled to at least one corresponding intake hole of the plurality of intake holes.