| 摘要 |
A propulsion device for a ship and a ship having the same are disclosed. The propulsion device for a ship according to an embodiment of the present invention comprises: a rear propeller fixed to a rotary shaft; a front propeller which is supported to the rotary shaft in front of the rear propeller to be rotated; a counter rotating device which reverses the rotation of the rotary shaft and transfers the reversed rotation to the front propeller; a sealing device which is installed between the hub of the front propeller and the hub of the rear propeller and has a pressing ring member and a support ring member touching each other. A lubricant supply path for supplying a lubricant to the inner space between the sealing device and the rotary shaft and a lubricant collecting path for collecting the supplied lubricant are formed in the rotary shaft. |
