Patent ID: 11916459
Assignee: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 10:
11. An electric motor, comprising:
a stator including an end winding; and
a first spray ring including:
a plurality of axial grooves spaced apart in a circumferential direction along an outer circumferential surface of the first spray ring;
a plurality of nozzle orifices arranged at an inner circumferential surface of the first spray ring, in fluidic communication with the plurality of axial grooves, the plurality of nozzle orifices configured to spray toward the end winding of the stator in a direction toward a second spray ring at a different end of the stator;
a plurality of nozzle guide surfaces extending through the first spray ring and joining the plurality of axial grooves to the plurality of nozzle orifices, with the plurality of nozzle guide surfaces shaped to direct a coolant spray from the plurality of nozzle orifices to the end winding; and
a drain channel formed through the inner circumferential surface of the first spray ring at a bottom end of the electric motor.