Impeller for a centrifugal pump

Impeller for a centrifugal pump

A centrifugal pump includes an impeller that is rotatable about a rotational axis. The impeller includes impeller vanes disposed between a base plate and a shroud. The shroud outer surface includes recessed pump out vanes. For each pump out vane, the ratio R1 of the vane outer diameter to the shroud...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Shane, Trevor, Pulai, Peter
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Beschreibung
Zusammenfassung:A centrifugal pump includes an impeller that is rotatable about a rotational axis. The impeller includes impeller vanes disposed between a base plate and a shroud. The shroud outer surface includes recessed pump out vanes. For each pump out vane, the ratio R1 of the vane outer diameter to the shroud outer diameter is in a range of 0.8 to 0.98, the number of vanes N is in a range of 5 to 9, the ratio R2 of the width of the pump out vane to the shroud outer diameter is in a range of 0.02 to 0.04 and the pump out vane has a square leading edge profile with a square or chamfered trailing edge profile.