Impeller for a pump, especially a vortex pump
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United States of America Patent
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Jun 30, 1987
Grant Date -
N/A
app pub date -
Jun 3, 1985
filing date -
Aug 16, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An impeller for a pump, especially a vortex pump, provided with one or more straight or curved vanes arranged radially. Vortex pumps are used e.g. for pumping sewage, for which purpose they are well adapted. However, a drawback with such pumps known so far has been a rather low efficiency and a low lift curve. In the vortex pump of the invention, this problem is eliminated by providing the edges of the vanes with flanges essentially perpendicular to the vane surface.
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