Linear motor
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United States of America Patent
Stats
-
Nov 23, 2004
Grant Date -
Mar 4, 2004
app pub date -
Apr 25, 2003
filing date -
Oct 27, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linear motor includes a secondary part (1) having several permanent magnets (4) disposed behind one another with alternating orientation of the polarity, or excitation windings. These permanent magnets (4) or excitation windings are wound helically around a rotation axis. Furthermore, there is provided a primary part (2) having a current-carrying winding disposed in parallel relationship to the permanent magnets (4) or excitation windings and arranged about the rotation axis such that a magnetic traveling field travels helically about the rotation axis.
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