Electric motor
AssigneeThomson Licensing
InventorsJurgen Mossner, Christian Buchler
Life of this patent
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Abstract
An electric motor comprises a stator (1, 5, 8) having an air-gap which extends around an axis and in which a rotating magnetic field is generated, and a rotor (11, 12, 13) comprising a shaft (11) which is rotatably held by a bearing (10) and a permanent magnet (13) which is held in said air-gap and is driven to rotate around said axis by said rotating magnetic field. The stator (1, 5, 8) is adapted to generate, in addition to said rotating magnetic field, a stationary magnetic field which is rotationally asymmetric with respect to said axis.
Claims14
1-13. (canceled)
An electric motor comprising a stator having an air-gap which extends around an axis and in which a rotating magnetic field is generated, and a rotor comprising a shaft which is rotatably held by a bearing and a permanent magnet which is held in said air-gap and is driven to rotate around said axis by said rotating magnetic field, wherein the stator is adapted to generate, in addition to said rotating magnetic field, a stationay magnetic field component which is rotationally asymmetric with respect to said axis.
Dependencies are inferred from the claim text.