| 摘要 |
On a propeller, more particularly one for aircraft applications, an efflux slot (6) originating at the propeller blade trailing edge (5) is provided in the transition area between propeller blade (3) and hub (2) for improving the secondary airflow and dimensioned such that precisely the air boundary layer, but not the main flow, is allowed to flow off. Propeller losses are reduced and propeller thrust and efficiency are increased. |
