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US 11,239,734 B2Granted
Double stator rotating electrical machine
AssigneeABB Schweiz AG
InventorsWenliang Chen, Jahirul Islam
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Abstract
It is provided a multi-stator rotating electrical machine including: an inner stator; an outer stator; a rotor provided radially between inner stator and the outer stator; an inner gap distance between the rotor and the inner stator; and an outer gap distance between the rotor and the outer stator. An average of the inner gap distance is between 75 and 80 percent of an average of the outer gap distance.
Claims3
A multi-stator rotating electrical machine comprising:
- an inner stator;
- an outer stator;
- a rotor provided radially between inner stator and the outer stator;
- an inner gap distance (δi) between the rotor and the inner stator;
- and
- an outer gap distance (δo) between the rotor and the outer stator;
- wherein an average of the inner gap distance (δi) is between 75 and 80 percent of an average of the outer gap distance (δo).
4 more elements
Dependencies are inferred from the claim text.