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US 6,328,123 B1Granted
Electrical drive for a wheel hub
AssigneeDaimlerChrysler AG
InventorsKlaus Niemann, Tobias Polascheck
Life of this patent
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Abstract
An electrical drive for a wheel hub of a motor vehicle, especially a utility vehicle, is provided with an electric motor disposed inside of the wheel. The electric motor has a stator and a rotor, where the rotor is connected to a step-down transmission. Additionally, the drive is provided with a brake. The stator is disposed within the hollow rotor and the step-down drive is disposed within the stator.
Claims5
An electrical drive for a wheel hub of a motor vehicle, comprising:
- an electric motor disposed within the wheel hub, the motor having a water-cooled stator and a hollow rotor;
- a planetary transmission having a circumferential annular gap for water cooling the stator, said planetary transmission including an internal gear, a planetary gear holder on which planet gears are disposed, and a sun gear wherein the sun gear is connected to the hollow rotor, the internal gear is connected to the wheel hub, and the planetary gear holder is fixedly connected to a housing part;
- and
- a brake system;
- wherein the stator is disposed within the hollow rotor, and the planetary transmission is disposed within the stator.
2 more elements
Dependencies are inferred from the claim text.