Grundfos Management A/s

Grundfos Holding A/s

Martin Vad

Per Frost Vedsted

Keld Folsach Rasmussen

Oluf Kjær

Morten Holst Bogh

Carsten Kammersgaard

Per Frost Vensted

A method for injection molding a pump impeller () of plastic, with which the cores which define the flow channels () in the inside of the impeller (), are formed in each case of at least two core parts (). After the injection molding, a first core part () is firstly pulled out of the flow channel () and subsequently, an additional relative movement between the impeller () and the core part () is effected in a direction transverse to the pulling direction of the second core part (), before or during the pulling-out of a second core part ().

Method for injection molding a pump impeller and pump impeller

A flow-routing component of a pump is composed of at least two parts, a first part () of the component being manufactured by metal-powder injection molding, and a second part () of the component being manufactured from sheet metal. A pump assembly is also provided having such a flow-routing component.

Flow-routing component of a pump

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Randers NØ, Denmark

Martin Vad