Asynchronous motors having simple rotor structures
AssigneeIspat Inland, Inc.
InventorsScott T. Blazek, Joseph W. Sliwa, Anatoly F. Kolesnichenko
Life of this patent
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Abstract
A device for converting electrical energy into mechanical work is disclosed. The device includes a rotor body having a radial length, a ferromagnetic layer having a radial thickness, the ferromagnetic layer being disposed on the of the rotor body, wherein the radial thickness of the ferromagnetic layer is less than the radial length of the rotor body. The device further includes a conductive layer disposed on the ferromagnetic layer and a stator disposed substantially along the rotor body, the ferromagnetic layer and the conductive layer, wherein the stator is adapted to carry an alternating current signal.
Claims32
A device for converting electrical energy into mechanical work, comprising:
- a washing machine basket having a radial length and a circumference, wherein the circumference of the washing machine basket comprises a substantially non-magnetic material;
- a ferromagnetic layer having a radial thickness, the ferromagnetic layer being disposed on the circumference of the washing machine basket, wherein the radial thickness of the ferromagnetic layer is less than the radial length of the washing machine basket;
- a conductive layer disposed on the ferromagnetic layer;
- and
- a stator disposed substantially along the circumference of the washing machine basket, the ferromagnetic layer and the conductive layer, wherein the stator is adapted to carry an alternating current signal.
A device for converting electrical energy into mechanical work, comprising:
- a substantially hollow rotor body having a radial length and a circumference, wherein the rotor body is not permanently magnetized;
- a ferromagnetic layer having a radial thickness, the ferromagnetic layer being disposed on the circumference of the substantially hollow rotor body, wherein the radial thickness of the ferromagnetic layer is less than the radial length of the substantially hollow rotor body;
- a conductive layer disposed on the ferromagnetic layer;
- and
- a stator disposed substantially along the circumference of the substantially hollow rotor body, the ferromagnetic layer and the conductive layer, wherein the stator is adapted to carry an alternating current signal.
Dependencies are inferred from the claim text.