Patent ID: 11916343
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An electric machine comprising:
a rotor having a rotor winding and a rotor shaft containing an inner cavity, the rotor winding having a rotor positive pole and a rotor negative pole;
a rotary bearing member fixed in the inner cavity and configured to rotate with the rotor shaft, the rotary bearing member including a first compartment filled with a conducting fluid, the first compartment having a first opening and a rotor positive connector that is in electrical contact with the conducting fluid therein and electrically connected with the rotor positive pole,
wherein the rotary bearing member further includes a second compartment filled with a conducting fluid and electrically insulated from the first compartment, the second compartment having a second opening and a rotor negative connector that is in electrical contact with the conducting fluid therein and electrically connected to the rotor negative pole,
wherein the rotary bearing member further includes a non-rotary component including a power positive connector extending into the first compartment and being in electrical contact with the conducting fluid therein, and a power negative connector extending into the second compartment and being in electrical contact with the conducting fluid therein, and
wherein the first opening and the second opening face opposite axial directions or a same axial direction.