Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1980-01-29
1981-12-22
Truhe, J. V.
Electrical generator or motor structure
Dynamoelectric
Rotary
310168, 310184, 310263, 310268, H02K 1742
Patent
active
043073093
ABSTRACT:
A brushless alternator or like dynamoelectric machine, particularly adapted for use in a vehicle, comprising a field coil mounted on the center leg of a stationary core, a rotor shaft extending through the center leg of the core, a first, disc-shaped rotor member mounted on the shaft and facing the center leg of the core across a first large-area axial air gap and having a first set of radially projecting rotor poles, and a second, annular rotor member mounted on the first rotor member, facing an outer flange portion of the core across a second large-area axial air gap and having a second set of axially projecting rotor poles interleaved one-for-one with the first set. The two sets of rotor poles have pole faces aligned in a common radial plane facing an annular array of stator poles across a third large-area axial air gap arranged to balance the magnetic attraction forces to which the rotor is subjected; the stator poles are of laminated construction, formed in pairs and mounted in an annular laminated stator that is in turn mounted on the core by non-magnetic means affording a sealed housing for the machine. The coils of the stator winding are wound in an even number of layers, alternately outside-in and inside-out, with the corresponding layers of adjacent coils interconnected, to afford maximum current capacity in coils of minimum axial length, keeping the axial length of the stator poles to a minimum.
REFERENCES:
patent: 3320450 (1967-05-01), Bosco et al.
patent: 4159434 (1979-06-01), Kalsi
Ginsburg Morris
Truhe J. V.
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