| 摘要 |
A self-priming, centrifugal pump comprising a first housing part (25) having a front wall (60) with an inlet (3), a second housing part (20) having an outlet (4), an impeller (30) rotatably arranged in the second housing part (20) and a pump screw (50) rotatably arranged in the first housing part (25), connected to the impeller(30) and comprising a center body (511) around which a helical blade (53) is arranged for feeding the impeller (30) with any gas that is present in the liquid (L), wherein the center body (511) is arranged at a distance from a side (63) of the front wall (60) that faces the center body (511), such that a channel (80) with a width (D1) of at least 12 mm is formed between the center body (511) and the side (63) of the front wall (60) that faces the center body (511). |
