Magnetically balanced and centered electromagnetic machine and c

Details Magnetically balanced and centered electromagnetic machine and c Magnetically balanced and centered electromagnetic machine and c

1985-08-01

1987-09-29

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 30, 310 24, H02K 3300

Patent

active

046971130

ABSTRACT:
A cryogenic refrigerator includes opposing pistons driven by linear electromagnetic machines. Magnetic elements on armatures reciprocate adjacent to first and second flux paths and a transfer of flux between the flux paths with movement of either armature causes the other armature to move in a balanced fashion in an opposite direction. The armatures are driven by coils which transfer the flux from one flux path to the other. Tapers in the flux paths cause the armatures to seek a centered position, or are tailored to minimize compressor input power.

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V. Fireteau, "Reduction of the Transverse Edge Effect in Linear Machines with Honogeneous Secondary Armature by Changing the Air Gap Configuration", Rev. Roum. Sci. Techn.--Electrotech, et Energ., 22, 2, pp. 209-215, Bucarest, 1977.

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