Electromagnetic actuators

Details Electromagnetic actuators Electromagnetic actuators

1989-05-05

1991-03-12

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 30, 335230, H02K 3312

Patent

active

049995316

ABSTRACT:
An electromagnetic actuator has a tubular stator with at least two opposed, external pole pieces carrying energizing windings, and a permanent magnet rotor inside the stator and rotatable about the major axis of the stator, the rotor having at least two oppositely-directed permanent magnets extending axially of the rotor and in closely spaced relation to the stator, said magnet each occupying less than 180.degree. of the circumference of the rotor, the leading and/or trailing edge of each magnet being tapered and/or chamfered.

REFERENCES:
patent: 3644763 (1972-02-01), Skrobisch
patent: 4476408 (1984-10-01), Honsinger
patent: 4482847 (1984-11-01), Rudich, Jr. et al.
patent: 4691135 (1987-09-01), Sogabe et al.
patent: 4835426 (1989-05-01), Henville

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