PROPULSION ARRANGEMENT IN A SHIP

摘要

An exemplary propulsion arrangement includes at least one propulsion unit situated at the stern of a ship having a hull with a horizontal water line (WL) and a center line (CL). The propulsion unit can include a hollow support structure attached to the hull, a chamber attached to the support structure, an electric motor within the chamber, a propeller at the front end of the chamber, and a pivotably supported rudder at the rear end of the chamber. The propulsion unit can be mounted so that the shaft line (SL) forms a vertical tilt angle (α) in a range of 1 to 8 degrees in relation to the water line (WL) so that the front end of the chamber is lower than the rear end of the chamber in relation to the water line (WL).

主权项

1. A propulsion arrangement for a ship, wherein the ship includes a hull having a horizontal water line (WL) and a center line (CL), the propulsion arrangement comprising:
at least one stationary propulsion unit for placement at a stern of a ship hull, said at least one propulsion unit including: a hollow support structure for attachment to a ship hull;—a chamber having a front end and a rear end, said chamber being attached to the support structure; an electric motor within the chamber; a shaft having a first end and a second end, said first end of the shaft being connected to the electric motor and said second end of the shaft protruding from the front end of the chamber and being connected to a propeller, a center axis of said shaft forming a shaft line (SL); and a pivotably supported rudder at the rear end of the chamber; the at least one propulsion unit being configured for mounting so that the shaft line (SL) will form a vertical tilt angle (α) in a range of 1 to 8 degrees in relation to a water line (WL) of a ship so that the front end of the chamber will be lower than the rear end of the chamber in relation to the water line (WL).