Linear motor

Details Linear motor Linear motor

1990-01-22

1991-10-15

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

310 90, H02K 4100

Patent

active

050577239

ABSTRACT:
A linear motor comprising a center yoke made of a ferromagnetic material; outer yokes made of a ferromagnetic material, having permanent magnets, each having magnetic poles on the inner and outer surfaces thereof and fixed to the inner surface of the outer yokes, and disposed outside the center yoke with both ends thereof being magnetically coupled; and a movable member having coils wound on the outer circumference thereof and axially movably disposed in a gap between the center yoke and the outer yokes, in which recesses are provided on the opposing surfaces of the center yoke and the movable member, and a static-pressure gas bearing is formed by providing an air intake vent connecting to these recesses.

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