Linear motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 22, 2001
Grant Date -
N/A
app pub date -
Jul 28, 1999
filing date -
May 1, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Linear motor includes a moving member tapered relative to a traveling direction to provide a surface slanted relative to the traveling direction toward one end of the moving member, a stator having a surface that is opposed to the slanted surface of the first member and slanted relative to the traveling direction at an angle corresponding to the slanted angle of the slanted surface of the moving member, a field pole producing section for producing field poles on the slanted surface of the moving member, and an armature section provided on the stator and including armature windings so as to produce electromagnetic poles corresponding to electric currents passed through the armature windings. Thus, the moving member is caused to move relative to the stator, by exciting the armature windings to produce a linearly moving magnetic field. Due to the tapered configuration, magnetic attraction produced between the moving member and the armature core is partly split in the traveling direction, which leads to an increased thrust.
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