| 摘要 |
The machine has a driven propeller (4) including a propeller blade (3) helically extending along a propeller shaft (2) and having a suction edge (5) and a pressure edge (11). The suction edge of the propeller blade approximately runs along an intersection between a tooth surface of the propeller blade and a tangential sectional area of the propeller shaft, and passes over a connecting edge, where the intersection of the tooth surface and the tangential cross-sectional area follows a facing surface. |
