STRÖMUNGSFÜHRENDES BAUTEIL EINER PUMPE

摘要

A multi-stage centrifugal pump has a two-part wheel whose first section (2) is fabricated by injection moulded metal powder, and the second part (4) is made of sheet metal. Further claimed is a commensurate centrifugal pump in which the two parts are welded together. The first part is a cover plate formed jointly with the pump blades and has a hub. The second part is fabricated from sheet metal.