Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-03-31
1995-01-17
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310 45, 310184, 310198, 310208, 310215, 310254, 310261, H02K 100, H02K 1500
Patent
active
053828615
ABSTRACT:
An asynchronous motor is disclosed with stator and rotor windings placed in respective grooves, at least one of the windings being a cast winding. The grooves on the stator and those on the rotor are so inclined relative to each other that the groove inclination is approximately 60 to 90% of the pole pitch. In addition, to enhance the effect of the groove inclination, the stator and/or rotor is subjected, after the casting of the windings, to a heat treatment process in which the stator and/or rotor is heated to a high temperature and then cooled. The invention facilitates construction of an asynchronous motor having a reduced magnitude of generator torque of the motor and a changed rotational speed at which it occurs in relation to a conventional asynchronous motor.
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Kone OY
Skudy R.
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