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US 8,123,458 B2Granted
Stacked self-priming pump and centrifugal pump
AssigneeThe Gormann-Rupp Co.
InventorsDonald Racer, Michael L. Keith
Life of this patent
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Abstract
A stacked pump arrangement for mixed-media flow includes a first, self-priming, centrifugal pump with a volute having an inlet and an outlet and a second straight centrifugal pump mounted to an upper portion of the first centrifugal pump, the second straight centrifugal pump also having a volute with an inlet and an outlet. A transition chamber is connected, at one end, to the first centrifugal pump volute outlet and is connected, at another end, to the second straight centrifugal pump volute inlet.
Claims13
A stacked pump arrangement for mixed-media flow comprising:
- a first centrifugal pump adapted to pump a mixed-media flow, which is self-priming, comprising a first impeller shaft and a volute having an inlet and an outlet;
- a second straight centrifugal pump adapted to pump the mixed-media flow mounted to an upper portion of the first centrifugal pump, the second straight centrifugal pump comprising a volute with an inlet and an outlet, and a second impeller shaft;
- and
- a transition chamber connected, at one end, to the first centrifugal pump volute outlet and connected, at another end, to the second straight centrifugal pump volute inlet for mounting the second straight centrifugal pump above and in vertical relation to the first centrifugal pump,
- wherein the first centrifugal pump, the transition chamber and the second straight centrifugal pump are stacked along a vertical axis,
- wherein a vertical center axis of the transition chamber is perpendicular to the first and second impeller shafts,
- wherein the first and second impeller shafts are substantially parallel to each other along their respective longitudinal axes, and the first and second impeller shafts are perpendicular to the vertical axis,
- wherein the first centrifugal pump comprises a first removable rotating assembly, and the second straight centrifugal pump comprises a second removable rotating assembly, and
- wherein the first removable rotating assembly is driven by a first power source, and the second removable rotating assembly is driven by a second power source.
6 more elements
A pump arrangement comprising:
- a first centrifugal pump adapted to pump a mixed-media flow, which is self-priming, comprising a volute having an inlet and an outlet, and a first rotating assembly comprising a first impeller shaft and impeller;
- a second straight centrifugal pump, adapted to pump the mixed-media flow, mounted externally to an upper portion of the first centrifugal pump, the second straight centrifugal pump comprising a volute with an inlet and an outlet, a second rotating assembly comprising a second impeller shaft and impeller;
- and
- a transition chamber connected, at a first end, to the first centrifugal pump volute outlet and connected, at a second end, to the second straight centrifugal pump volute inlet for mounting the second straight centrifugal pump above and in vertical relation to the first centrifugal pump,
- wherein the first centrifugal pump, the transition chamber and the second straight centrifugal pump are stacked along a vertical axis,
- wherein a vertical center axis of the transition chamber is perpendicular to the first and second impeller shafts,
- wherein the first and second impeller shafts are substantially parallel to each other along their respective longitudinal axes, and the first and second impeller shafts are perpendicular to the vertical axis,
- wherein a driven end of the first centrifugal pump impeller shaft is at least one of longitudinally and vertically aligned with a driven end of the second straight centrifugal pump impeller shaft, and
- wherein the first centrifugal pump is driven by a first motor or engine and the second centrifugal pump is driven by a second motor or engine.
6 more elements
A pump arrangement comprising:
- a first centrifugal pump adapted to pump a mixed-media flow, which is self-priming, comprising a volute having an inlet and an outlet, and a first rotating assembly comprising a first impeller shaft and impeller;
- a second straight centrifugal pump, adapted to pump the mixed-media flow, mounted externally to an upper portion of the first centrifugal pump, the second straight centrifugal pump comprising a volute with an inlet and an outlet, a second rotating assembly comprising a second impeller shaft and impeller;
- and
- a transition chamber connected, at a first end, to the first centrifugal pump volute outlet and connected, at a second end, to the second straight centrifugal pump volute inlet for mounting the second straight centrifugal pump above and in vertical relation to the first centrifugal pump,
- wherein the first centrifugal pump, the transition chamber and the second straight centrifugal pump are stacked along a vertical axis,
- wherein a vertical center axis of the transition chamber is perpendicular to the first and second impeller shafts,
- wherein the first and second impeller shafts are substantially parallel to each other along their respective longitudinal axes, and the first and second impeller shafts are perpendicular to the vertical axis,
- wherein a driven end of the first centrifugal pump impeller shaft is at least one of longitudinally and vertically aligned with a driven end of the second straight centrifugal pump impeller shaft,
- wherein the first centrifugal pump and the second centrifugal pump are driven by a common power source,
- wherein the common power source is a motor or an engine, and
- wherein power is transmitted from the common power source to at least one of the first centrifugal pump and the second straight centrifugal pump via a belt.
8 more elements
Dependencies are inferred from the claim text.