| 主权项 |
1. A propeller arrangement for a drive system of a watercraft, comprising: a propeller being rotatable about a propeller axis, wherein at least one rotor fin is provided which is disposed freely rotatably about the propeller axis, wherein the at least one rotor fin is disposed on a propeller hub of the propeller, wherein the diameter of a circular path described by the rotation of the at least one rotor fin is less than the diameter of the propeller, so that the at least one rotor fin substantially exclusively influences a propeller flow in a propeller hub region in such a manner that vortex formation is reduced in the propeller hub region, wherein at least one stator fin co-rotating with the propeller in the same direction is provided, which is disposed between the freely rotatable at least one rotor fin and the propeller, wherein the diameter of a circular path described by a rotation of the at least one stator fin is less than the diameter of the propeller, so that an untwisting of the propeller flow is achieved in the area of the propeller hub region before the flow impinges upon the rotor fin, and wherein the at least one stator fin is disposed on the propeller hub of the propeller and is firmly connected to said hub. |
