| 摘要 |
PURPOSE: A propeller for a ship is provided to improve the thrust power of a ship by continually discharging water in a rotation axis direction of a blade. CONSTITUTION: A propeller for a ship comprises a water stream induction protrusion(4). The water current induction protrusion rearward guides the flow of current to a side(3) of a blade. The water current induction protrusion is arranged along a wire. The surface, which is near a rotary shaft, connects an upper part(5) of the water current induction protrusion to the one side of the blade. The surface, which is far from the rotary shaft, is upward located on the upper part of the water current induction protrusion. |
