Axial-flow induction motor

Details Axial-flow induction motor Axial-flow induction motor

1996-11-06

1998-06-09

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310268, 310 51, H02K 1700, H02K 122

Patent

active

057639752

ABSTRACT:
The invention relates to an axial-flow induction motor comprising a stator having a winding arranged in a slot and a rotably supported laminated rotor which is spaced from the stator by an air gap. The rotor has a magnetically highly conductive layer on the side which is remote from the stator and an electrically highly conductive layer on the side which faces the stator. In order to reduce losses caused by harmonics, the rotor also includes an additional magnetic conductive layer between the electrically highly conductive layer and the air gap. The magnetic conductivity of the additional magnetic conductive layer in the direction of rotation is low in comparison with the magnetic conductivity of the magnetically highly conductive layer. The electrically highly conductive layer is also thicker than the magnetically conductive layer.

REFERENCES:
patent: 4409506 (1983-10-01), Ito et al.
patent: 4777396 (1988-10-01), Ito et al.
patent: 5288216 (1994-02-01), Bolte

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