Dual rotor electric machine in an automotive application
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMarkus Steinberger, Gregory Heeke, Md. Wasi Uddin
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Abstract
An electrical machine for use in a vehicle, comprising a stator configured to output a rotating magnetic field, a primary rotor located radially between an output shaft and the stator, a secondary rotor, wherein the secondary rotor is located radially between the stator and the output shaft, and a hydraulic pump attached to the secondary rotor, wherein the hydraulic pump is configured to output lubricant to an outlet in response to the rotating magnetic field generated therebetween by the stator and the secondary rotor.
Claims18
An electrical machine for use in a vehicle, comprising:
- a stator configured to output a rotating magnetic field;
- a primary rotor located radially between an output shaft and the stator;
- a secondary rotor, wherein the secondary rotor is located radially between the stator and the output shaft, wherein the secondary rotor is configured to spin within the rotating magnetic field when the primary rotor is not rotating;
- and
- a hydraulic pump attached to the secondary rotor, wherein the hydraulic pump is configured to output lubricant to an outlet in response to the rotating magnetic field generated therebetween by the stator and the secondary rotor.
A dual rotor electrical machine, comprising:
- a stator;
- a primary rotor located radially between the stator and an output shaft;
- a secondary rotor located radially between the stator and the output shaft;
- and
- an outlet configured to output lubricant in response to a rotating magnetic field generated therebetween the stator and the secondary rotor, wherein the secondary rotor is configured to spin within the rotating magnetic field when the primary rotor is not rotating.
An electrical machine for use in a vehicle, comprising:
- a hydraulic pump attached to a secondary rotor, wherein the secondary rotor is located radially between a stator and output shaft and further axially arranged alongside a primary rotor attached to the output shaft, wherein the hydraulic pump is configured to output lubricant to an outlet in response to a rotating magnetic field generated therebetween the by the stator of the electrical machine and the secondary rotor, wherein the secondary rotor is configured to spin within the rotating magnetic field at a first rate of rotation, and the primary rotor is configured to spin at a second rate of rotation, wherein the first rate of rotation and the second rate of rotation are different.
Dependencies are inferred from the claim text.