Oil-submersible linear motor

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.

Dependencies are inferred from the claim text.