Axial flux electrical machine
AssigneeIn Motion Technologies Pty Limited
InventorsCharles Richard Langford, Steven Peter Camilleri
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Abstract
An axial flux electrical machine including a housing, a stator located within the housing, a rotatable shaft carried by the housing by means of at least a main bearing, and a rotor fixed to the shaft within the housing. Magnetic attractive forces between the rotor and the stator produce an axial thrust on the main bearing and a biasing means (preferably in the form of a spring) is arranged to urge the shaft in a direction opposite to the axial thrust so as to reduce the net load on the main bearing. This reduction in net load on the main bearing increases bearing life and improves motor efficiency.
Claims8
An axial flux electrical machine comprising:
- a housing;
- a stator located within the housing;
- a main bearing coupled to the housing;
- a rotatable shaft positioned at least partially within the main bearing;
- a rotor fixed to the shaft within the housing, wherein magnetic attractive forces between the rotor and the stator produce an axial thrust on the main bearing;
- and
- at least one biasing device configured to urge the shaft in a direction opposite to the axial thrust so as to reduce the net load on the main bearing.
Dependencies are inferred from the claim text.