| 摘要 |
The invention relates to an aerator device where the stator is installed coaxially with the rotor and comprises several flow chutes extending outwards from the stator frame. According to the invention, the flow channel (8) comprises a first part (9) that is closed at the top, and an at least one-part flow chute (10, 12, 16, 20, 22, 24) that is open at the top.
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