Pump having opposing magnets between a rotor and stator, and related assemblies, systems, and methods
AssigneeWhite Knight Fluid Handling Inc.
InventorsTom Simmons, Geoffrey White, Courtney Parsons
Life of this patent
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Abstract
A pump may include a stator, a rotor, and an impeller. The stator may include one or more electromagnets and one or more permanent magnets. The rotor may include an armature, one or more complementary permanent magnets, and a pull magnet configured to position the rotor in an axial direction. The rotor may be disposed within the stator. The complementary permanent magnets and the one or more permanent magnets of the stator may create magnetic bearings. The armature may be aligned with at least one of the electromagnets of the stator and configured to rotate the rotor with respect to the stator. The impeller may be coupled to the rotor.
Claims1
A magnetically levitated electric motor comprising:
- a rotor;
- a stator;
- a permanent push/pull magnet positioned on an axial end of the rotor;
- a locating electromagnet positioned on an axial end of the stator, configured to position of the rotor at a position set-point by interacting with the push/pull magnet;
- and
- a permanent lift magnet positioned on the axial end of the stator, the permanent lift magnet configured to support the axial end of the rotor.
Dependencies are inferred from the claim text.