| 摘要 |
The invention relates to a pump for conveying a medium, especially a gas-liquid mixture, with a housing (3), an annular surface (17) extending inside the housing, an eccentric (39) arranged off-centre in relation to the annular surface (17) and at least one displacer (55) arranged between the annular surface (17) and the eccentric (39), in which the displacer (55) is held in position in relation to the annular surface and the eccentric (39) is fitted to rotate about the central axis (44) of the annular surface and/or the annular surface (17) can rotate in relation to the eccentric (39).
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