Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1981-08-20
1983-08-23
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310105, 310168, 310239, H02K 4900
Patent
active
044006381
ABSTRACT:
A shaft mounted eddy current variable speed drive or clutch has a hub which is adapted to be mounted on the shaft of a prime mover, such as an electric motor, and drives an armature. The hub includes an annular armature. A driven magnetic body is mounted for rotation on the hub and includes an array of poles magnetically associated with the armature through a working air grap and are energized from an electric coil mounted on the magnetic body. A slip ring assembly is also mounted on the magnetic body as well as an output pulley through which power is taken from the body. A non-rotating brush holder assembly, as well as a magnetic speed pick-up are mounted on a support bracket which bracket is, in turn, piloted to and mounted on the hub through a bearing. A torque arm prevents the rotation of the brush assembly and magnetic pick-up. The piloting of the non-rotating electrical components directly to the hub maintains a fixed and desired radial spacing of these components with their associated rotating components on the magnetic body.
REFERENCES:
patent: 2616069 (1952-10-01), Jaeschke
patent: 3294995 (1966-12-01), Edick
patent: 3303367 (1967-02-01), Jaeschke et al.
patent: 3584248 (1971-06-01), Higashino et al.
patent: 3716788 (1973-02-01), Nishida
Albrecht James W.
Spriggs Harold G.
Duggan Donovan F.
Stromag, Inc.
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