CLOCK-FREE CENTRIFUGAL PUMP

摘要

The invention relates to a centrifugal pump with a single-blade impeller (3), whose central suction mouth remote from the drive shaft (4) is in alignment with the inlet opening (6) of the pump chamber (2), the inlet opening forming an annular collar (9) which projects into the impeller interior in such a way that the inner end (7a) of the impeller blade (7) forms a narrow gap (width S) with the outer circumference of the collar (9). IMAGE