The invention discloses an annular propeller which comprises a unit annular propeller body, the unit annular propeller body comprises a propeller shaft and a propeller blade, the center axis of the propeller shaft is the rotation axis of the unit annular propeller body, and the propeller blade is provided with an upper side end and a lower side end which are connected with the propeller shaft. The paddle shaft is provided with an upper side end and a lower side end, the upper side end and the lower side end extend outwards from the side part of the paddle shaft and are connected outside the paddle shaft so as to form a ring with holes on the paddle shaft, the number of the paddles is multiple, and the multiple paddles are arranged on the side part of the paddle shaft around the central axis of the paddle shaft. The annular propeller can be used on ships such as rubber boats, yachts and steamships, when the propeller shaft rotates, the propeller blades can rotate along with the propeller shaft, water flow can pass through the holes in the annular propeller blades, the water flow drainage efficiency is improved, cavitation bubbles are reduced, noise generated when the annular propeller is used is reduced, resistance borne by the annular propeller can also be reduced, and the service life of the annular propeller is prolonged. The propelling efficiency of the annular propeller is improved.
本发明公开了一种环形螺旋桨,包括单元环形螺旋桨,所述单元环形螺旋桨包括:桨轴,所述桨轴的中心轴线为单元环形螺旋桨的旋转轴线,桨叶,所述桨叶具有分别与桨轴相连接的上侧端和下侧端,所述上侧端与下侧端从桨轴的侧部向外延伸,并于桨轴外部相连接以于桨轴上形成带孔的环,所述桨叶为多个,所述多个桨叶绕桨轴的中心轴线布置于所述桨轴的侧部上。本发明能用于橡皮艇、游艇、轮船等船只上,桨轴在转动时,桨叶能随之转动,且环状的桨叶上的孔能允许水流的通过,提高水流排走的效率,减少空泡的形成,从而降低环形螺旋桨在使用时出现的噪声,也能减少环形螺旋桨受到的阻力,提高环形螺旋桨的推进效率。
Annular propeller
环形螺旋桨
2023-04-04
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Annular magnetically-driven shaftless intelligent rotor propeller
European Patent Office | 2024
|Annular aerofoil with central body and propeller
Engineering Index Backfile | 1957
|