Fluid pump assembly
A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade.
1. A magnetically driven unit, comprising:
a housing comprising a base and a nozzle releasably connected to the base;
a rotator at least partially contained in the housing, the rotator comprising a magnet;
a shaft operatively connected to the rotator;
a blade operatively coupled with the shaft;
a magnet cover cooperating with the base to enclose the magnet of the rotator between the base and the magnet cover;
an axle concentrically surrounded by the shaft;
a magnetic shield placed on top of the magnet of the rotator;
a sleeve concentric with and surrounding the axle;
a lower bearing concentric with and surrounding the sleeve, the lower bearing interposed between the magnet and the base; and
a thrust washer interposed between the lower bearing and the base.
2. The magnetically driven unit of claim 1 , wherein the axle comprises a flanged base.
3. The magnetically driven unit of claim 2 , wherein the flanged base contacts a surface of the base.
4. The magnetically driven unit of claim 3 , wherein the sleeve is a ceramic sleeve positioned between the axle and the shaft.
5. The magnetically driven unit of claim 2 , wherein the axle comprises a metallic material.
6. The magnetically driven unit of claim 1 , wherein the nozzle comprises a plurality of ribs spaced apart from one another to create openings for allowing fluid to flow therethrough.
7. The magnetically driven unit of claim 1 , further comprising a casing connected to the shaft and surrounding the magnet of the rotator and the magnet shield.
8. The magnetically driven unit of claim 1 , wherein the lower bearing is connected to the rotator.
9. A fluid pump assembly, comprising:
the magnetically driven unit of claim 1 ; and
a drive unit comprising a drive unit magnet configured for magnetically coupling to and rotationally driving the blade of the magnetically driven unit.
10. A magnetically driven unit, comprising:
a housing comprising a base and a nozzle extending from and connected to the base;
a rotator at least partially contained in the housing, the rotator comprising a magnet;
a shaft operatively connected to the rotator;
a blade operatively coupled with the shaft;
a magnetic shield placed on top of the magnet of the rotator, the magnet of the rotator and the magnet shield disposed within a casing connected to the shaft;
an axle operably associated with the shaft, the axle concentrically surrounded by the shaft and comprising a flanged base;
a sleeve concentric with and surrounding the axle;
a lower bearing concentric with and surrounding the sleeve, the lower bearing positioned between the magnet and the base; and
a thrust washer positioned between the lower bearing and the base.
11. The magnetically driven unit of claim 10 , wherein the sleeve comprises a ceramic material and the axle comprises a metallic material.
12. The magnetically driven unit of claim 10 , wherein the shaft, the axle, and the sleeve are concentric with one another.
13. The magnetically driven unit of claim 10 , wherein the flanged base of the axle contacts a surface of the base.
14. The magnetically driven unit of claim 10 , wherein the base and the nozzle are releasably connected to one another.
15. A fluid pump assembly, comprising:
the magnetically driven unit of claim 10 ; and
a drive unit comprising a drive unit magnet configured for magnetically coupling to and rotationally driving the blade of the magnetically driven unit.