Patent ID: 11873826
Assignee: DEERE & COMPANY
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H  B | IPC F  H

Claim 0:
1. A cooling system, comprising:
a first electric machine including a first housing, a first stator assembly connected to the first housing, a first rotor assembly rotatably connected to the first housing via a first bearing, a first front air dam positioned at a first end of the first housing, and a first fan attached to the first rotor assembly inside the first housing;
a second electric machine including a second housing, a second stator assembly connected to the second housing, a second rotor assembly rotatably connected to the second housing via a second bearing, a second front air dam positioned at a first end of the second housing, and a second fan attached to the second rotor assembly inside the second housing; and
a conduit connecting a first passageway in the first front air dam to a second passageway in the second front air dam;
when the first rotor assembly is rotating at faster speed than the second rotor assembly, the first fan generates a first air flow into the first housing towards a first air gap between the first rotor assembly and the first stator assembly and a second air flow in the conduit.