The invention discloses a ship propeller with wavy blade surfaces. The ship propeller comprises blades (1), following edges (2), guide edges (3), a cross section A (4), a cross section B (5), a cross section C (6), a cross section D (7), a cross section E (8), a cross section F (9), a cross section G (10), a cross section H (11), a cross section I (12), a propeller hub (13), a propeller hub cap (14), a propeller shaft (15) and traditional blades (16). Compared with a traditional propeller, the wave-shaped blades can divide and concentrate vortex, energy is prevented from being gathered at blade tips, accordingly, generation of tip vortex cavitation bubbles is reduced or delayed, and denudation of cavitation bubble collapse to the surfaces of the blades is reduced. The surface complexity is increased through the wave-shaped grooves, the attachment area of organisms such as barnacles is reduced, the maintenance frequency is reduced, and the long-term operation efficiency is indirectly improved.
本发明公开了一种桨叶表面为波浪型的船舶螺旋桨,包括桨叶(1)、随边(2)、导边(3)、截面A(4)、截面B(5)、截面C(6)、截面D(7)、截面E(8)、截面F(9)、截面G(10)、截面H(11)、截面I(12)、桨毂(13)、桨毂帽(14)、桨轴(15)、传统桨叶(16)。本发明与传统的螺旋桨相比,波浪性叶片可以分割集中涡流,避免能量在叶梢聚集,从而减少或推迟梢涡空泡的产生,减少空泡溃灭对叶片表面的剥蚀。并且波浪型沟槽增加表面复杂度,减少藤壶等生物附着面积,降低维护频率,间接提升长期运行效率。
Ship propeller with wavy blade surfaces
一种桨叶表面为波浪型的船舶螺旋桨
06.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Propeller: Protection of Blade Surfaces
British Library Online Contents | 1995
|Multi-blade ship propeller mounting and positioning device
Europäisches Patentamt | 2021
|