Electromagnetic devices

Details Electromagnetic devices Electromagnetic devices

1980-10-17

1982-12-28

Duggan, Donovan E.

Electrical generator or motor structure

Dynamoelectric

Linear

310 30, H02K 4100

Patent

active

043664016

ABSTRACT:
An electromagnetic device includes a stator having axially spaced pole pieces and windings which when energized cause adjacent pole pieces to have opposite magnetic polarity. An armature surrounds the stator and is of tubular form having a smooth internal surface. The exterior surface of the armature is machined such that at least at one end of the pole pitch distance of the stator the thickness of the armature is such that magnetic saturation of the material forming the armature occurs so that the lines of force between the armature and the pole piece extend in a direction inclined to the axis of the armature thereby resulting in a force acting to cause axial movement of the armature.

REFERENCES:
patent: 4090097 (1978-05-01), Seilly
patent: 4238699 (1980-12-01), Seilly
patent: 4278904 (1981-07-01), Seilly

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