Variable speed controlled induction motor

Details Variable speed controlled induction motor Variable speed controlled induction motor

1987-05-28

1988-11-15

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310114, 310191, 318437, H02P 414, H02P 1310

Patent

active

047852135

ABSTRACT:
A variable speed controlled induction motor has a rotor (8) formed in one piece and a plurality of stators (24,25), the rotor having a plurality of rotor cores (2,3) and a plurality of conductive members (5) interconnected and the stators having respective stator windings (22,23). The stator windings (22,23) are connected in series, the rotor conductive members (5) are short-circuited by connecting members (r) at an air space or a non-magnetic core portion disposed between the rotor cores (2,3), and at least one of the plurality of stators (24,25) is associated with a phase shifter (38;47;50;51) providing the voltage of a given phase to the stator windings, whereby the rotational speed can be controlled easily over a wide range with excellent torque characteristics and efficiency.

REFERENCES:
patent: 3405296 (1968-10-01), Stilley et al.
patent: 3940668 (1976-02-01), Apsit et al.
patent: 4228391 (1980-10-01), Owen

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