Pump insert and assembly

F - Mech Eng,Light,Heat,Weapons – 04 – D

Patent

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Details

F04D 29/42 (2006.01) F04D 29/16 (2006.01) F04D 29/62 (2006.01)

Patent

CA 2548136

A pump insert (128) has an inner surface which in use defines a portion of a volute (124) of a pump (110) wherein said pump insert (128) is adapted to be coupled with a pump casing (116) by an inter-engaging profiled coupling arrangement (166). In one disclosed embodiment the pump insert (128) is adapted to engage a pump casing closure plate (148) which is locatable about a pump shaft (112) and between the pump inert (148) and the pump casing (110).

L'invention concerne une pièce d'insertion de pompe (128) comprenant une surface interne qui, lors de l'utilisation, définit une partie d'une volute (214) d'une pompe (110). Selon l'invention, la pièce d'insertion de pompe (128) est conçue pour être accouplée avec un carter de pompe (116) au moyen d'un système d'accouplement profilé à contact réciproque (166). Dans un mode de réalisation de la présente invention, la pièce d'insertion de pompe (128) est conçue pour venir au contact d'une plaque de fermeture de carter de pompe (148) qui peut être positionnée autour d'un arbre de pompe (112) et entre la pièce d'insertion de pompe (148) et le carter de pompe (110).

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