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US 11,581,782 B2Granted
Electric propulsion system
AssigneeHamilton Sundstrand Corporation
InventorsTadashi Sawata, Andrew Page
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Abstract
An electric propulsion system, comprising a propeller and a motor arranged to rotate the propeller, the motor comprising an axial flux motor comprising a rotor disc and a stator disc mounted in face-to-face relationship with an air gap defined therebetween, the rotor disc driven to rotate relative to the stator disc to cause magnetic flux in the air gap to cause rotation of the propeller, characterised in that the propeller is directly attached to the rotor disc to rotate with the rotor disc.
Claims3
An electric propulsion system, comprising:
- a propeller;
- an axial flux motor arranged to rotate the propeller,
- the axial flux motor comprising an air gap between a rotor and a stator, the rotor driven to rotate relative to the stator to cause magnetic flux in the air gap to cause rotation of the propeller;
- wherein permanent magnets are provided on the face of the rotor facing the stator and windings are provided mounted to the stator;
- wherein the propeller is directly mounted to the rotor to rotate with the rotor;
- and
- wherein the propeller comprises propeller blades mounted radially inwards of an outer edge of the rotor;
- and
- a shaft on which the stator is fixedly mounted, the rotor being arranged to rotate about the shaft via bearings, wherein the bearings are provided between the shaft and the rotor.
6 more elements
Dependencies are inferred from the claim text.