Centrifugal pump for dishwashing machine - has rotor blades extending axially beyond edge of shroud to separate entrained air

摘要

The centrifugal pump of a dish-washing machine has a rotor (4) with a conical body and radial blades (5) surrounded by a shroud (9). The blades are extended axially so that they project beyond the edge of the shroud. When the water passing through the pump is mixed with foam, the air is separated by centrifugal force from the water in the area (7) of the projection of the blades beyond the shroud.