| 摘要 |
A centrifugal pump, especially for use in an aquarium filter, has a permanent-magnet motor. The rotor of the permanent-magnet motor runs in an essentially cylindrical rotor chamber, and on its axis there sits a centrifugal pump impeller running in a pump chamber. The intake of the centrifugal pump is arranged in such a way that the liquid to be pumped flows, with an axial component, on the rotor side against the centrifugal pump impeller. This is preferably achieved by the intake debouching into the rotor chamber immediately adjacent to the centrifugal pump impeller. The invention ensures adjustment-free fitting of the centrifugal pump and silent running.
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