OIL-SUBMERSIBLE LINEAR MOTOR
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United States of America Patent
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Issued Date -
Apr 14, 2016
app pub date -
Dec 26, 2013
filing date -
Dec 26, 2013
priority date (Note) -
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Abstract
A submersible linear motor (100) comprising a stator (10) and a mover (20) moving in a linear motion arranged within the stator (10). The stator comprising a stator inner pipe (14), a stator outer pipe (13), and a plurality of windings (11) disposed between the stator inner pipe and outer pipe. The mover comprises a mover inner pipe (21), a plurality of permanent magnets (23), a plurality of magnetic rings (24), and a plurality of wearing rings (25). The plurality of permanent magnets and magnetic rings being sleeved onto the mover inner pipe. Each magnetic ring arranged between two adjacent permanent magnets. The plurality of permanent magnets being arranged between every two wearing rings. The plurality of wearing rings forming a friction pair with the stator inner tube, ensuring the smooth operation of the motor and reducing vibration.
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