PROPULSION APPARATUS FOR SHIP AND SHIP HAVING THE SAME

摘要

PURPOSE: A propulsion device and a ship with the same are provided to facilitate the alignment of the center of a shaft and the installation of a driving shaft because an outer shaft is not used. CONSTITUTION: A propulsion device for a ship comprises a front propeller(20), a rear propeller(30), and a balancer device(130). The front propeller and the rear propeller are installed in a driving shaft to rotate in the opposite directions. The balancer device is installed in at least one of the front and rear propellers and has a weight body. If the driving shaft eccentrically rotates, the weight body is moved in a direction for releasing eccentricity.