Pump with co-axial magnetic coupling

Details Pump with co-axial magnetic coupling Pump with co-axial magnetic coupling

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 13/02 (2006.01) F04D 3/02 (2006.01) F04D 13/06 (2006.01) F04D 29/60 (2006.01)

Patent

CA 2215527

Disclosed is a pump (1) that employs a magnetic coupling to connect the motor (2) to the impeller (20). A simplified structure within the pump (1) casing is employed to enable the easy removal of the pump's impeller (20) and bushings and/or bearings (24). In one embodiment of the invention, the exterior surface of the impeller (20), including its attached magnets (16), is encased in a plastic bushing (56, 58, 60) material. Surrounding the impeller (20) is a tubular bushing (58) that may at times come into contact with the bushing material of the impeller (20).

Cette pompe (1) fait appel à un accouplement magnétique pour accoupler le moteur (2) à un rotor (20). On utilise une structure simplifiée dans le carter de la pompe (1) afin de permettre l'enlèvement aisé du rotor (20) de la pompe ainsi que des manchons et/ou paliers (24). Dans un mode de réalisation de l'invention, la surface extérieure du rotor (20), ainsi que ses aimants associés (16), sont enfermés dans un matériau plastique formant manchon (56, 58, 60). Un manchon tubulaire (58) entourant le rotor (20) peut venir à certains moments en contact avec le matériau plastique formant manchon du rotor (20).

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