Title:
NOVEL PROPULSION PROPELLER FOR SHIP
Document Type and Number:
WIPO Patent Application WO/2022/155864
Kind Code:
A1
Abstract:
A propulsion propeller for a ship, comprising an inner propeller hub (1), wherein an outer hub (2) is provided outside the inner propeller hub (1), several inner propeller blades (3) are provided between the inner propeller hub (1) and the outer hub (2), several outer propeller blades (4) are provided on the outer wall of the outer hub (2), each outer propeller blade (4) comprises an inner side edge (41) and an outer side edge (42), several saw teeth (5) are provided on the inner side edge (41) of each outer propeller blade (4), several convex ribs (6) are provided on the surface of each outer propeller blade (4), and the direction of each convex rib (6) is pointed from the center of the outer propeller blade (4) to the circumference of the outer propeller blade (4). The present invention can increase the efficiency of a propeller, reduce noise and increase the propulsion power of a ship.
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Inventors:
WANG XIANGLAI (CN)
WANG TONG (CN)
JI WEI (CN)
WANG TONG (CN)
JI WEI (CN)
Application Number:
PCT/CN2021/073173
Publication Date:
July 28, 2022
Filing Date:
January 22, 2021
Export Citation:
Assignee:
ZHENJIANG TONGZHOU PROPELLER CO LTD (CN)
International Classes:
B63H1/14; B63H1/20; B63H1/26
Foreign References:
| CN1971060A | 2007-05-30 | |||
| CN106882352A | 2017-06-23 | |||
| CN201031815Y | 2008-03-05 | |||
| CN107472490A | 2017-12-15 | |||
| US7637722B1 | 2009-12-29 | |||
| US20090004934A1 | 2009-01-01 | |||
| JP2010000906A | 2010-01-07 |
Attorney, Agent or Firm:
ZHENJIANG JIDE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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