Rotary dynamoelectric machine with magnetically permeable...

Details Rotary dynamoelectric machine with magnetically permeable... Rotary dynamoelectric machine with magnetically permeable...

H - Electricity

02

K

310/95

H02K 3/48 (2006.01) H02K 3/493 (2006.01) H02K 17/02 (2006.01) H02K 19/16 (2006.01)

Patent

CA 1122251

Abstract A rotary electric machine is arranged to comprise a stator including an annular stator core formed at its inner surface with circumferentially spaced and axially extending slots and a stator winding mounted in said slots. A rotor includes a rotor core formed axially shorter than the stator core. A rotor winding is wound on the rotor core and coil retaining rings are provided to securely hold end portions of the rotor winding. A magnetically permeable device is pro- vided in the stator slots at portions opposing to the coil retaining rings. The result is a machine less prone to dynamic imbalance in the rotor and hence to undesirable vibration.

320494

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