Disclosed is a propulsion efficiency enhancement apparatus. The purpose of the present invention is to provide a propulsion efficiency enhancement apparatus configured to easily couple a pre-swirl stator to a stern boss and to prevent stress concentration on a root portion of the pre-swirl stator coupling to the stern boss. According to an embodiment of the present invention, the propulsion efficiency enhancement apparatus comprises: a stern boss supported to be rotatable; and a pre-swirl stator supported by the stern boss wherein the stern boss is made by casting, and a mount formed protrudingly thereon to couple the pre-swirl stator.
추진효율향상장치가 개시된다. 본 발명의 실시예에 따른 추진효율향상장치는 프로펠러가 회전 가능하게 지지되는 스턴 보스; 및 상기 스턴 보스에 지지되는 전류고정날개를 포함하고, 상기 스턴 보스는 주물로 제작되고, 상기 스턴 보스에는 상기 전류고정날개가 결합되는 마운트가 돌출 형성된다.
PROPULSION EFFICIENCY ENHANCING APPARATUS
추진효율향상장치
2016-09-06
Patent
Electronic Resource
Korean
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |