Centrifugal pump impeller with inverted expulsion chambers
AssigneeCrane Pumps & Systems PFT Corp.
InventorIa Kidd
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Abstract
An impeller for a centrifugal pump includes a shroud, wherein the shroud is a substantially planar circular section of material. The impeller includes a hub portion disposed in the center of the shroud; the hub configured to connect the impeller to a driveshaft for rotation in a preferred direction. The impeller also includes a plurality of inverted expulsion chambers, wherein each inverted expulsion chamber comprises a channel-shaped relief in the shroud extending radially towards an outer perimeter of the shroud.
Claims20
An impeller for a centrifugal pump, the impeller comprising:
- a shroud comprising a substantially planar circular section of material;
- a hub disposed in the center of the shroud, the hub configured to connect the impeller to a driveshaft for rotation in a preferred direction;
- and
- a plurality of inverted expulsion chambers, wherein each inverted expulsion chamber comprises a channel-shaped relief in the shroud extending from a location proximate to the center of the shroud toward an outer perimeter of the shroud.
A method of manufacturing an impeller for a centrifugal pump, the method comprising:
- forming a shroud comprising a substantially planar circular section of material;
- and
- disposing a hub in the center of the shroud, the hub configured to connect the impeller to a driveshaft for rotation in a preferred direction,
- wherein an outer surface of the shroud includes a plurality of inverted expulsion chambers, wherein each inverted expulsion chamber comprises a channel-shaped relief in the shroud extending from a location proximate to the center of the shroud toward an outer perimeter of the shroud.
Dependencies are inferred from the claim text.