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US 12,334,794 B2Granted
Externally excited electric machine
AssigneeAudi AG
InventorRoman Straßer
Life of this patent
Estimating the term…
Abstract
An externally excited electric machine comprises a rotor as well as a contact device having at least one sliding contact element positioned against a contact segment of the rotor for transmitting an exciter current, wherein the sliding contact element is integrated in an electromagnetic actuator, by which it can be controlled to move between a position lying against the contact segment and a position spaced apart from it.
Claims17
An externally excited electric machine, comprising:
- a rotor;
- a contact device having at least one sliding contact element positionable against a contact segment of the rotor for transmitting an exciter current,
- wherein the sliding contact element is integrated in an electromagnetic actuator, by which the sliding contact element can be controlled to move between a position lying against the contact segment and a position spaced apart from the contact segment.
Dependencies are inferred from the claim text.