Variable speed controllable induction motor

Details Variable speed controllable induction motor Variable speed controllable induction motor

1988-07-12

1990-07-31

Skudy, R.

Electricity: motive power systems

Motor structure adjustment or control

310112, 310116, 310166, 310197, 318727, H02K 2720

Patent

active

049452967

ABSTRACT:
A variable speed controllable induction motor comprises a single rotor formed in one-piece having different sets of rotor conductive members effective respectively at different speed ranges, that is, at least a set of first conductive members specifically effective for a lower speed range and a set of second conductive members specifically effective for a higher speed ranges; a plurality of stators disposed side by side surrounding and facing respective portions of said rotor; and a phase shifting apparatus for producing phase differences on the respective portions of the rotor conductive members. The motor can achieve an overall wide range speed control due to the combined effects of the characteristics obtained respectively from the different set of the rotor conductive members.

REFERENCES:
patent: 1246643 (1917-11-01), Neuland
patent: 1708909 (1929-04-01), Spencer
patent: 3280400 (1966-10-01), Roe
patent: 3290574 (1966-12-01), Roe
patent: 3435315 (1969-03-01), Kordik
patent: 4229689 (1980-10-01), Nickoladze
patent: 4785213 (1988-11-01), Satake

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