The booster-type thruster comprises a guide pipe, a driving system, a first propeller, a second propeller and a rotating shaft, the driving system is installed on the inner wall of the guide pipe, the first propeller and the second propeller are both rotationally installed on the inner wall of the guide pipe, and the length direction of the rotating shaft is the same as the length direction of the guide pipe; the first propeller fixedly sleeves the front end of the rotating shaft, and the second propeller fixedly sleeves the rear end of the rotating shaft; a first cambered surface is arranged on the inner wall of the first propeller, a second cambered surface is arranged on the inner wall of the second propeller, and the first cambered surface and the second cambered surface continuously contract from front to back, so that the overall pressure of the propellers is increased, the rotating speed range of normal use of the propellers is increased, and higher propelling power density is obtained. The inner walls of the first propeller and the second propeller are changed, then the flow field in the guide pipe is influenced, the hydrodynamic performance can be improved, and the problems that a traditional propeller is large in size, high in noise, low in propelling efficiency and the like are solved.
本发明涉及一种高水动力效益的增压式推进器,包括导管、驱动系统、第一螺旋桨、第二螺旋桨和转轴,导管的内壁安装有驱动系统,第一螺旋桨和第二螺旋桨均转动安装于导管的内壁,转轴的长度方向和导管的长度方向相同,第一螺旋桨固定套设于转轴的前端,第二螺旋桨固定套设于转轴的后端;第一螺旋桨的内壁设有第一弧面,第二螺旋桨的内壁设有第二弧面,第一弧面和第二弧面均由前向后不断收缩,使螺旋桨整体压力增大,使得螺旋桨正常使用的转速范围提升从而获得更高的推进功率密度。本发明改变第一螺旋桨和第二螺旋桨的内壁,进而影响导管内流场,可以增加水动力性能,解决了传统推机器体积大,噪声大,推进效率低等问题。
Supercharged propeller with high hydrodynamic efficiency
一种高水动力效益的增压式推进器
2023-07-28
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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