Stator for an electromagnetic machine

Details Stator for an electromagnetic machine Stator for an electromagnetic machine

1984-08-17

1985-08-27

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310179, 310218, H02K 112

Patent

active

045380864

ABSTRACT:
Electromagnetic machines of the type having circular arrays of permanent magnets arranged on a rotor and a plurality of pole pieces arranged on a stator, requires that a maximum number of pole pieces be arranged around the stator in order to attain maximum utilization of the magnetic flux and to minimize interpole flux leakage. The instant stator of an electromagnetic machine includes a plurality of U-shaped pole pieces, with adjacent ones of the pole pieces opening in opposite radial directions from an axis of the stator. The pole pieces which open radially inwardly are stepped so as to have a relatively thicker portion radially outwardly from the axis and a relatively thinner portion radially inwardly from the axis. Thus, the number of pole pieces that can be arranged around the stator is maximized, as is the utilization of magnetic flux, and interpole flux leakage is minimized.

REFERENCES:
patent: 2236291 (1941-03-01), Kilbourne
patent: 2654039 (1953-09-01), Abdo
patent: 3700943 (1972-10-01), Heintz et al.
patent: 4237396 (1980-12-01), Blenkinsop et al.

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