Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1980-10-09
1983-01-25
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310216, 310268, H02K 306
Patent
active
043705820
ABSTRACT:
The stator (21) of the motor is of annular form, with generally radial slots (22) which receive the energizing windings. The squirrel cage of the rotor has a magnetic component (16) and a conductive component comprising inner ring (10) and outer ring (12) joined by bars (14). The bars (14) are curved so as to follow a path with a higher radial component at the inner end than at the outer end. This reduces perceived noise by avoiding sharp registering of the rotor bars with the stator slots, and also by providing a more uniform ratio of magnetic to conductive material in the rotor at different radii around the rotor axis.
REFERENCES:
patent: 1861059 (1932-05-01), Johnson
patent: 1897184 (1933-02-01), Zopp
patent: 2159695 (1939-05-01), Gorham
patent: 2550571 (1951-04-01), Litman
patent: 2861205 (1958-11-01), Kober
patent: 2873395 (1950-02-01), Kober
patent: 2880335 (1959-03-01), Dexter
patent: 2956189 (1960-10-01), Buss
patent: 3013168 (1961-12-01), Ellis
patent: 3685142 (1972-08-01), Deming
Addicott Roy W.
Capaldi Bernard
Sealed Motor Construction Company, Limited
Skudy R.
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