Hydrodynamic pump e.g. cooling water pump for internal combustion engine, has electric motor assembly that is provided with an internal rotor and stator that are arranged in or on the pump housing

摘要

The hydrodynamic pump has impeller which is designed in a turbine. The pump workspace is arranged between intake portion and a pressure connection of the pump housing. The electric motor assembly is provided with an internal rotor (1) and stator (3) which are arranged in or on the pump housing. The stator is integrated in the non-magnetizable material of the pump housing wall. The gap between rotor and stator of the electric motor assembly is communicated with pump workspace.