Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1982-09-08
1985-06-04
Wong, Peter S.
Electrical generator or motor structure
Dynamoelectric
Rotary
310178, 310229, 310237, H02K 2322
Patent
active
045217092
ABSTRACT:
In a rotating machine, for example heteropolar, auxiliary poles (14) are placed in practically the field poles (4) and close to the peripheral of a salient section (.delta.) of rotor (2), the same azimuth symmetry plane as the poles are supplied by a current (i) regulated by a power supply and auxiliary regulation device (16), the armature current (I) and rotation speed (N) of the rotor expose armature conductors (8) in commutation to an equalizing flux providing for arc-free commutation. Auxiliary poles can be supplied with a current regulated by the field current to cancel the currents flowing in the armature conductors on the field poles. These machines, for example also acyclic with voltage step-up, have high specific power and efficiency, and can be employed for example, in electric traction or propulsion.
REFERENCES:
patent: 1416256 (1922-05-01), Borger
patent: 2919360 (1959-12-01), Mishima
patent: 3060336 (1962-10-01), Liimatainen et al.
patent: 4031419 (1977-06-01), Spiesberger et al.
patent: 4064410 (1977-12-01), Roach
patent: 4308480 (1981-12-01), Moody
patent: 4451752 (1984-05-01), Tahara et al.
Chabrerie Jean-Pierre
Mailfert Alain
Saint-Michel Jacques A.
Ault Anita M.
Etat Francais
Wong Peter S.
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