Electric Motor With Radially Mounted Magnets
AssigneeSPX Corporation
InventorMichael T. Landrum
Life of this patent
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Abstract
An electric device includes: a first set of magnets arranged in an annular array about a central axis of the device; a second set of magnets arranged in an annular array about the central axis of the device; a first carrier supporting the first set of magnets, the first carrier rotatable about the central axis; a second carrier supporting the second set of magnets axially spaced along the central axis from the first set of magnets, the first and second carriers dimensioned to allow the first and second set of magnets to move past each other when the first carrier rotates. A method of moving magnets with respect to each other may also be provided.
Claims20
An electric device comprising:
- a first set of magnets arranged in an annular array about a central axis of the device;
- a second set of magnets arranged in an annular array about the central axis of the device;
- a first carrier supporting the first set of magnets, the first carrier rotatable about the central axis;
- a second carrier supporting the second set of magnets axially spaced along the central axis from the first set of magnets, the first and second carriers dimensioned to allow the first and second set of magnets to move past each other when the first carrier rotates.
The electric device of claim 2, further comprising several sets of magnets arranged in annular arrays on the first carrier and several sets of magnets arranged in an annular arrays on the second carrier and the magnets are arranged such that arrays supported by the first carrier alternate with arrays supported by the second carrier along the central axis.
A method of moving magnets with respect to each other comprising:
- arranging a first set of magnets in an annular array about a central axis;
- arranging a second set of magnets in an annular array about the central axis;
- spacing the first and second set of magnets from each other axially with respect to the central axis;
- and
- energizing at least one of the set of magnets to cause one of the sets of magnets to rotate about the central axis and move past the other set of magnets.
An electric device comprising:
- a first set of magnets arranged in an annular array about a central axis of the device;
- a second set of magnets arranged in an annular array about the central axis of the device;
- a first means for supporting the first set of magnets, the first means for supporting rotatable about the central axis;
- a second means for supporting the second set of magnets axially spaced along the central axis from the first set of magnets, the first and second means for supporting the magnets dimensioned to allow the first and second set of magnets to move past each other when the first means for supporting the first set of magnets rotates.
Dependencies are inferred from the claim text.