Adding rotors in series

Abstract

A homopolar dynamoelectric machine includes a hollow tube with an empty center, stator layers spaced radially apart from one another and housed within the hollow tube, rotor layers provided within the hollow tube alternating between adjacent ones of the stator layers and rotatable due to a magnetic field generated by the stator layers, electrical connectors which electrically connect axial ends of adjacent ones of the rotor layers in series, parallel, or a combination of series and parallel, and at least one flux return mitigation assembly that interacts with flux of the magnetic field generated by the stator layers. The rotor layers and the stator layers are integrally connected to be rotatable together about a central axis of the hollow tube.

Dependencies are inferred from the claim text.