JPH0442292U

JPH0442292U -

Info

Publication number: JPH0442292U
Application number: JP8471890U
Authority: JP
Priority date: 1990-08-10
Filing date: 1990-08-10
Publication date: 1992-04-09
Anticipated expiration: 2005-08-10
Also published as: JPH088318Y2

Description

[Brief explanation of the drawing]

第１図は請求項１に記載の考案の一実施例を示
すキヤンドモータポンプの縦断面図、第２図は同
上他の実施例を示すキヤンドモータポンプの縦断
面図、第３図は同上別の実施例を示すキヤンドモ
ータポンプの縦断面図、第４図は請求項２に記載
の考案の一実施例を示すキヤンドモータポンプの
縦断面図、第５図は従来構造のキヤンドモータポ
ンプを示す縦断面図である。２０……キヤンドモータポンプ、２１……ポン
プ、２２……キヤンドモータ、２８……固定子キ
ヤン、２９……回転子キヤン、３０……キヤン隙
間、３０ａ……キヤン隙間の流体入口側、３０ｂ
……キヤン隙間の流体出口側、３１……固定子、
３２……回転子、３６……入口側回転体、３７…
…回転軸、３８……出口側回転体、３９，４０…
…平行環状隙間、４１……複合平行環状隙間、４
１ａ……複合平行環状隙間の流体入口側、４１ｂ
……複合平行環状隙間の流体出口側。 FIG. 1 is a longitudinal sectional view of a canned motor pump showing an embodiment of the invention as claimed in claim 1, FIG. 2 is a longitudinal sectional view of a canned motor pump showing another embodiment of the invention, and FIG. FIG. 4 is a vertical cross-sectional view of a canned motor pump showing another embodiment of the invention as described above; FIG. FIG. 3 is a vertical cross-sectional view showing the motor pump. 20... Canned motor pump, 21... Pump, 22... Canned motor, 28... Stator can, 29... Rotor can, 30... Can gap, 30a... Fluid inlet side of can gap, 30b
...Fluid outlet side of the can gap, 31...Stator,
32...Rotor, 36...Inlet side rotating body, 37...
...Rotating shaft, 38... Outlet side rotating body, 39, 40...
...Parallel annular gap, 41...Compound parallel annular gap, 4
1a...Fluid inlet side of compound parallel annular gap, 41b
...Fluid outlet side of the compound parallel annular gap.

Claims

[Claims for Utility Model Registration] (1) In a canned motor pump in which a pump and a canned motor are integrally coupled in a liquid-tight manner, at least the inner circumferential surface of the stator of the canned motor and the outer circumferential surface of the rotor of the canned motor one of which is formed into a tapered shape, and a tapered cylindrical stator can and/or a tapered cylindrical rotor can are respectively attached to the tapered stator and/or the tapered rotor; A right cylindrical stator can or rotor can is attached to the stator whose inner circumferential surface is not tapered or the rotor whose outer circumferential surface is not tapered, respectively, and the stator can and the rotor are attached to each other. A can motor pump characterized in that a can gap with a child can is formed in a taper shape that gradually narrows from the fluid inlet side to the fluid outlet side. (2) A pump and a canned motor are integrally coupled in a fluid-tight manner, and a right cylindrical stator can and rotor can are respectively attached to the stator and rotor of the canned motor, so that the stator can and the rotor In a canned motor pump in which a can gap with a child can is formed in a parallel annular shape, an inlet rotating body in the form of a right circular column having a diameter smaller than the outer diameter of the rotor can and a diameter larger than the outer diameter of the rotor can are provided. at least one of a right cylindrical outlet rotating body is fixedly disposed on a rotating shaft so as to be connected to the rotor can, and a parallel annular gap between the inlet rotating body and the stator can and/or the outlet A can characterized in that a parallel annular gap between the side rotating body and the stator can, and the can gap form a composite parallel annular gap that gradually narrows from the fluid inlet side to the fluid outlet side. motor pump.