| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress magnetic flux leakage to the outside, and the influence of an external magnetic field. <P>SOLUTION: The drive unit of a magnetic coupling pump 100 comprises driving magnets 219 arranged on the outside of the driven magnets 19 of the magnetic coupling pump, while spaced apart therefrom, so as to face the driven magnets with reference to the rotation axis A of the pump, a cup 220 formed of a ferromagnetic material and having a cylindrical section 221 around the rotation axis A, a motor 210 which rotates the cup around the rotation axis, and a cylindrical casing body 231 formed of a paramagnetic material and having a cylindrical section 232 on the inside of which the cup is disposed while spaced apart therefrom. <P>COPYRIGHT: (C)2013,JPO&INPIT |
