公开(公告)号：US20230278685A1

公开(公告)日：2023-09-07

申请号：US17926504

申请日：2021-05-17

申请人： Korea Shipbuilding & Offshore Engineering Co., Ltd. ,  Hyundai Heavy Industries Co., Ltd.

发明人： Jae Boo Kim ,  Chan Kyu Choi ,  Sung Hoon Kim ,  Kil Hwan Moon ,  Do Wan Kim ,  Gwan Hee Son

IPC分类号： B63H3/00

CPC分类号： B63H3/008

摘要： The present invention relates to a controllable pitch propeller capable of changing a blade pitch according to the sailing conditions of a ship and, specifically, to a controllable pitch propeller having an optimal hub-to-tip diameter ratio, the propeller being capable of reducing the size of a hub so as to have a high efficiency that is close to the propulsion efficiency of a fixed pitch propeller (FPP). In order to accomplish the aforementioned objective, the present invention relates a controllable pitch propeller which comprises a hub mounted at the propelling shaft of a ship, and a blade that is mounted at the circumference of the hub and that has a variable pitch, and which is technically characterized by a H/D ratio, of diameter (H) of the propeller and diameter (D) of the hub, of 0.170-0.2.