Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1982-11-01
1983-12-20
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 68D, 310263, H02K 1100
Patent
active
044219989
ABSTRACT:
To reduce the axial length of an alternator, so that it can be attached, for example, to the end wall (10) of an automotive engine having a stub shaft (11) projecting therefrom, a transmission housing, clutch housing, or the like, a support structure (22, 122) has ring-shaped axially extending portions (23, 45, 145) the outer ones of which retain the armature (12, 13) typically three phase, and the inner one retains the outer races of ball bearings (35, 36; 76a, 135, 136), the inner races of which are secured to axially inwardly extending portions (31, 131) of a claw pole rotor having claw poles rotating within the gap formed by a field structure (20, 120) and the stationary windings so that the ring-shaped axial inner projection (45, 145) of the support structure interengages and overlaps the axially extending inner projection (31, 131) of the claw pole structure, and the ball bearings are placed in essential alignment with the stator core and the field core, and positioned within two parallel planes (37, 38) defined by the end portions of the armature windings (13).
REFERENCES:
patent: 3868521 (1975-02-01), Schlicker et al.
patent: 4087713 (1978-05-01), Binder
Ahner Peter
Harer Helmut
Schustek Siegfried
Duggan Donovan F.
Robert & Bosch GmbH
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