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US 10,256,689 B2Granted
Electric motor with Halbach array and ferrofluid core
Assignee140Energy, Inc.
InventorElijah Jacob Williams
Life of this patent
Estimating the term…
Abstract
An electric motor apparatus is described that utilizes a Halbach array and a ferrofluid core. The electric motor comprises a rotor assembly and a stator assembly, each of which utilizes a Halbach array. A ferrofluid core is utilized in the stator, which results in a motor that is less susceptible to core loss and operates with increased efficiency.
Claims20
An electric motor, comprising:
- a rotor assembly comprising a circular shaft buffer having an inner circumference surrounding a shaft and an outer circumference, a plurality of magnets, and a retaining ring, the plurality of magnets arranged in an annulus between the outer circumference of the shaft buffer and an inner circumference of the retaining ring;
- and
- a stator assembly surrounding the rotor assembly, the stator assembly comprising:
- a motor housing comprising a cylindrical shell having a top end, a bottom end and an inner wall, the bottom end opposite the top end and forming a lip extending inward from the inner wall;
- a retainer cap, and
- a framework having an inner ring, a middle ring and an outer ring,
- a plurality of solenoids having an inner circumference and an outer circumference, the inner circumference of the plurality of solenoids being concentric to the inner circumference of the stator assembly,
- the lip coupled with the inner ring of the framework and the retainer cap coupled with the top end of the cylindrical shell to form a sealable compartment, the sealable compartment encompassing the plurality of solenoids and retaining a ferrofluid immersing the plurality of solenoids.
5 more elements
An electric motor comprising:
- a rotor assembly comprising a circular shaft buffer having an inner circumference surrounding a shaft and an outer circumference, a plurality of magnets, and a retaining ring, the plurality of magnets arranged in an annulus between the outer circumference of the shaft buffer and an inner circumference of the retaining ring;
- and
- a stator assembly surrounding the rotor assembly, the stator assembly comprising having a ferrofluid core assembly, the ferrofluid core assembly comprising:
- a framework having an inner ring, a middle ring and an outer ring, the framework having a plurality of solenoids, each solenoid comprised of would wires,
- a motor housing comprising a cylindrical shell having a top end, a bottom end and an inner wall, the bottom end opposite the top end and forming a lip extending inward from the inner wall, the framework structured within the inner wall of the motor housing and the lip coupled with the inner ring of the framework, and
- a retainer cap coupled with the top end of the cylindrical shell to form a sealed compartment, the sealed compartment encompassing the plurality of solenoids and retaining a ferrofluid immersing the plurality of solenoids.
3 more elements
Dependencies are inferred from the claim text.