Pierburg Gmbh

Helmut Prinz

Michael-Thomas Benra

Stefan Rothgang

Stephan Zielberg

Andreas Burger

Michael Benra

Peter Haushälter

A coolant pump includes a conveying channel, a drive shaft, a coolant pump impeller arranged on the drive shaft, a control slide which controls a flow cross-section of an annular gap between an exit of the coolant pump impeller and the conveying channel, a side channel pump which includes a side channel pump impeller arranged on the drive shaft and a side channel having an inlet and an outlet where a pressure can be generated by the side channel pump impeller rotating, a pressure channel having a flow cross section which fluidically connects the outlet to a first pressure chamber of the control slide, a valve which closes the flow cross-section, a second pressure chamber arranged on a side of the control slide facing the coolant pump impeller, and a connection channel arranged from the side channel into the second pressure chamber between the inlet and the outlet.

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Neuss, Germany

Helmut Prinz