| 摘要 |
The present invention relates to a tunnel transverse thrust apparatus for steering a ship, comprising a tunnel (10), which extends in a longitudinal direction X between a first (11) and a second aperture (12) and is destined to fully-cross the hull from one side to the other of the ship, and a thruster (20) having a propeller (21) positioned inside the tunnel. The thruster comprises a gear body (22) which supports the propeller at its first end (22'). This latter faces onto a first aperture of the tunnel and the gear body faces onto the second aperture. The tunnel has a protuberance (30) on one its inner walls, which protuberance extends along at least a perimetral section of the transversal cross-section of the tunnel, creating an accelerated flow area next to the second aperture when the propeller generates an incoming flow in the tunnel through the second aperture. |
