The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2024
Filed:
May. 17, 2021
Korea Shipbuilding & Offshore Engineering Co., Ltd., Seoul, KR;
Hyundai Heavy Industries Co., Ltd., Ulsan, KR;
Jae Boo Kim, Seoul, KR;
Chan Kyu Choi, Seoul, KR;
Sung Hoon Kim, Seoul, KR;
Kil Hwan Moon, Seoul, KR;
Do Wan Kim, Seoul, KR;
Gwan Hee Son, Seoul, KR;
Korea Shipbuilding & Offshore Engineering Co., Ltd., Seoul, KR;
Hyundai Heavy Industries Co., Ltd., Ulsan, KR;
Abstract
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.