Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1986-05-21
1987-09-01
Wong, Peter S.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 49R, H02K 122, H02K 2108
Patent
active
046911324
ABSTRACT:
Single phase synchronous motor with a two-pole permanent-magnet rotor (5), coils (9) designed for nominal operation and a stator iron (7) which carries the coils (9) to produce a two-pole stator field between the stator poles (13). The rotor elements (19, 23) produce pulsating torques and are made of hard-magnetic and soft-magnetic materials, the pulsating torques comprising average-value and alternating components. The motor is constructed so that the alternating components are in phase opposition and tend to cancel each other during nominal operation. Elements producing the pulsating torques comprise a soft-magnetic central part and hard-magnetic permanent magnets arranged on opposite sides thereof.
REFERENCES:
patent: 1385038 (1921-07-01), Bohli
patent: 1979813 (1934-11-01), Reis
patent: 2985779 (1961-05-01), Flaningham
patent: 4535263 (1985-08-01), Avery
Ruschmeyer, K., "Motoren und Generatoren als Dauermagneten", 1983, Expert Verlag, pp. 35-37.
Diefenbach et al, "Rotierender Antrieb fur ein Gerat mit oszillierender Arbeitsbewegung", ETZ, Book 30, vol. 2, pp. 56-60.
Bertram Leo
Schemmann Hugo
Faller F. Brice
Rebsch D. L.
U.S. Philips Corporation
Wong Peter S.
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