Electrical generator or motor structure – Dynamoelectric – Linear
Patent
1989-06-27
1991-04-30
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Linear
335230, 310 23, H02K 4100
Patent
active
050121448
ABSTRACT:
Linear direct drive motor includes a pair of axially spaced, relatively fixed stator poles and an armature mounted on a motor shaft for axial movement between the stator poles. The ends of the motor shaft are supported by centering springs which permit axial movement of the shaft and thus the armature relative to the stator poles. Positive stops are located between the stator and stator poles for preventing armature overtravel. Extending between the stator poles is a sleeve member which supports a ring magnet in radially spaced relation from the armature. Adjacent opposite ends of thee ring magnet are a plurality of layers of electrical coils, with the layers adjacent one end of the magnet being paired with different layers at the other end to provide redundant electrical channels and symmetric motion behavior.
REFERENCES:
patent: 4507634 (1985-03-01), Vanderlaan
patent: 4533890 (1985-08-01), Patel
patent: 4533891 (1985-08-01), Vandelaan et al.
patent: 4859975 (1989-08-01), Uetsuhara
patent: 4928028 (1990-05-01), Leibovich
patent: 4945269 (1990-07-01), Kamm
Eiszner, Jr. William H.
Heeres Stanley D.
Huitema Thomas W.
Vanderlaan Robert D.
Jones Judson H.
Pneumo Abex Corporation
Stephan Steven L.
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