| 摘要 |
The aim of the invention is to provide a simple, smoothly running pump, especially a slurry pump, preferably for concrete, which comprises a driven rotor ( 4 ) rotating inside a housing ( 2 ). According to the invention, the rotor ( 4 ) is configured as a polygonal, prismatic body wherein at least the connecting lines of the corners of the base form an equilateral polygon. The rotor performs a rotational movement about its center axis on an orbit, the longitudinal edges of the prismatic body ( 4 ') touching the longitudinal inner wall surface ( 2 ') of the housing ( 2 ).
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