Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1976-10-04
1978-02-14
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310156, 310257, 310194, H02K 350
Patent
active
040741575
ABSTRACT:
A sub-fractional A.C. signal generator incorporating a stator assembly comprising a coil wound upon an annular bobbin of molded insulator material, a pair of annular magnetically premeable stator members having alignment apertures snap-fit onto integral bosses projecting from the bobbin, in concentric relation in a stator sub-assembly, the two stator members affording a multiplicity of individual pole pieces interleaved one-for-one around the outer periphery of the coil. The sub-assembly and an insulator barrier are press fit onto opposite ends of a cylindrical stator support member within which a sleeve bearing is mounted to provide a complete stator assembly. A drive shaft is journalled in the stator bearing and carries an annular permanent magnet which encompasses the stator members but is spaced therefrom by a uniform radial air gap. A housing affixed to the insulator barrier encompasses rotor and stator assemblies.
REFERENCES:
patent: 3215878 (1965-11-01), Woodward, Jr.
patent: 3475630 (1969-10-01), Heinzen et al.
patent: 3596122 (1971-07-01), Stewart
patent: 3711732 (1973-01-01), Gerber et al.
patent: 3974406 (1976-08-01), Wehde
Duggan Donovan F.
Synchro-Start Products, Inc.
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