CONTRA ROTATING PROPELLER MARINE PROPULSION DEVICE WITH SUPER CONDUCTOR BEARING AND A SHIP HAVING THE SAME

摘要

PURPOSE: A dual reversal propeller type propulsion apparatus with a superconducting bearing and a ship including the same are provided to include a superconductive bearing between an outer rotating shaft and an inner rotating shaft and to support the rotating shaft without contacting, thereby facilitating the rotation of rotating shaft. CONSTITUTION: A dual reversal propeller type propulsion apparatus includes a first rotating shaft, a second rotating shaft, and a superconductive bearing. The second rotating shaft is formed so as to be rotatable about the same axis as thereof the first rotating shaft in the first rotating shaft. The superconductive bearing is installed between the first rotating shaft and the second rotating shaft so as to rotatably support the second rotating shaft in the first rotating shaft.