| 摘要 |
PURPOSE: A motor pump is provided to integrate a motor and a pump. CONSTITUTION: A motor pump includes a stator(3); a rotor(4); a rotary tube(4a); a negative screw(4s); and a fixed shaft(6). The stator is an electronic core(3a) buried in a housing(2) of a motor(1) water-tightly to form a rotary magnetic field. The rotor(4) is made of a cylindrical permanent magnet rotated by magnetic force of the rotary magnetic field of the stator. The rotary tube is a non-magnetic body is supported by bearings(5) of side plates(2a,2b) to penetrate a space of the rotor to integrally rotate. The negative screw is a rotary pump device formed in a pump chamber(4d) which is an inside space of the rotary tube to integrally rotate. The fixed shaft penetrate a central inside of the negative screw to be fixed by retainers(2r) of both side plates.
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