Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1984-05-21
1987-12-08
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 12, 310156, 310154, H02K 3700
Patent
active
047120282
ABSTRACT:
A stepping motor with toothed stator poles and toothed rotor poles is magnetically enhanced by locating permanently magnetized inserts in the spaces between the stator teeth and magnetizing the inserts transverse to the direction of movement of the rotor and substantially transverse to the direction in which the teeth extend. In a hybrid motor with a split and axially magnetized rotor the inserts are magnetized to oppose the magnetization of the rotor. In a variable reluctance motor with an unmagnetized rotor inserts are placed in both rotor and stator and magnetized to aid each other. Linear motors use either configuration.
REFERENCES:
patent: 2312101 (1943-02-01), Killam et al.
patent: 2993134 (1961-07-01), Harvey
patent: 3215875 (1965-11-01), Latta
patent: 3310697 (1967-03-01), Lace
patent: 3334254 (1967-08-01), Kober
patent: 3439200 (1969-04-01), Saito et al.
patent: 3495107 (1970-02-01), Haydon
patent: 3500081 (1970-03-01), Drejza et al.
patent: 3553508 (1971-01-01), Stcherbatcheff
patent: 3566251 (1971-02-01), Hoglund
patent: 3567974 (1971-03-01), Spingler
patent: 3671841 (1972-06-01), Hoffmann
patent: 3750151 (1973-07-01), Dill
patent: 3836802 (1974-09-01), Parker
patent: 3858308 (1974-01-01), Peterson
patent: 3883633 (1975-05-01), Kohler
patent: 3906268 (1975-09-01), Graffenried
patent: 3979616 (1976-09-01), Stechmann
patent: 3984711 (1976-10-01), Kordik
patent: 3999107 (1976-12-01), Reuting
patent: 4011479 (1977-03-01), Volkrodt
patent: 4025810 (1977-05-01), Field
patent: 4048531 (1978-09-01), Buess
patent: 4075518 (1978-02-01), Koehler
patent: 4103191 (1978-07-01), Kawamura
patent: 4112319 (1978-10-01), Field
patent: 4127802 (1978-11-01), Johnson
patent: 4190779 (1980-02-01), Schaeffer
patent: 4201929 (1980-05-01), Sudler
patent: 4207483 (1980-06-01), Baer
patent: 4217513 (1980-08-01), Kokzai
patent: 4255696 (1981-03-01), Field, II
patent: 4286180 (1981-08-01), Langley
patent: 4306164 (1981-12-01), Itoh et al.
patent: 4315171 (1982-02-01), Schaeffer
patent: 4339679 (1982-07-01), Urschel
patent: 4370577 (1983-01-01), Wakabayashi et al.
patent: 4371799 (1983-02-01), De Wolf
patent: 4424463 (1984-01-01), Musil
IBM Technical Disclosure Bulletin, vol. 6, No. 9, Feb. 1964, Thompson, L. J.
Machine Design, vol. 57, No. 9, Apr. 25, 1985, pp. 28-29, R. W. Horber.
Duggan Donovan F.
Sigma Instruments Inc.
Stanger Leo
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