Impeller for centrifugal pumps

摘要

An impeller of a centrifugal pump is provided. The impeller includes at least two blades (4) for conveying media containing solids. An impeller blade leading angle (β1) is smaller than 0°. The blade angle (β) increases in a first section (9) until a value of 0° is reached. In a second section (10), another increase occurs until a maximum value is reached. In a third section (11), the blade angle (β) decreases again.

主权项

1. An impeller for centrifugal pumps having at least two blades for conveying solids-containing media,
characterized in that that a blade angle (β) at an entry point of each blade is smaller than 0°, the blade angle increasing in a first section from the entry point until it reaches a value of 0°, then increasing in a second section up to a maximum value and then decreasing in a third section.