| 摘要 |
The conveying appliance comprises a pump unit which has a feed pump designed as a roller-cell pump, in which the pump body rollers, which consist at least partially of a ferromagnetic material and which are guided in radial slots of a driven slotted disc along a race surrounding the slotted disc, initiate the pumping effect. In this design, the race is formed by the wall of a bore in a disc-shaped component. In order to ensure smooth running of the roller-cell pump, the component is located in a magnetic circle whose magnetic force presses the pump body rollers against the race. <IMAGE>
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