The invention relates to the technical field of pump jet propulsion devices, in particular to a high-thrust low-noise pump jet propulsion device which comprises an outer channel shell and an inner channel shell positioned in the outer channel shell; wherein the inlet end of the outer channel shell is provided with a first-stage pump jet propeller, and the outlet end of the outer channel shell is provided with a rectification assembly used for controlling the water flow direction and the water flow; a second-stage pump jet propeller is arranged in the inner channel shell, and a first channel isformed in the inner channel shell; and a second channel is formed between the outer channel shell and the inner channel shell. Compared with the prior art, the spraying noise of high-speed water flowcan be greatly inhibited by the high-thrust low-noise pump jet propulsion device, and the opening and closing angles of the rectification assembly are adjustable, so that the water flow spraying direction and the flow of the high-speed sprayed water flow can be controlled, the spraying speed of the water flow is increased, reverse thrust is formed, and an object connected with the high-thrust low-noise pump jet propulsion device is pushed to move forwards or move forwards to change the direction.
本发明涉及泵喷推进装置技术领域,具体涉及一种大推力低噪声泵喷推进装置。其包括外通道壳体以及位于外通道壳体内部的内通道壳体;其中,在外通道壳体的入口端设置第一级泵喷推进器,外通道壳体的出口端设置用于控制水流方向及水流量的整流组件;内通道壳体内部设置第二级泵喷推进器,且内通道壳体内部形成有第一通道;外通道壳体与内通道壳体之间形成有第二通道。与现有技术相比,该装置将大大抑制高速水流的喷射噪声,且整流组件的张开与收缩角度是可调节的,从而能控制水流喷射的方向以及控制高速喷射水流的流量,提高水流的喷射速度,形成反推力,推动与该推进装置相连接的物体前进或前进改变方向。
High-thrust low-noise pump jet propulsion device
大推力低噪声泵喷推进装置
2020-09-08
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Noise Suppression and Thrust Increase Propulsion Methods
British Library Conference Proceedings | 2011
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