Marine noise reduction and efficiency improvement device and aerodynamic boat

Abstract

The invention belongs to the field of aerodynamic boats, and particularly relates to a marine noise reduction and efficiency improvement device installed at the top of a cabin of an aerodynamic boat and the aerodynamic boat with the marine noise reduction and efficiency improvement device. The marine noise reduction and efficiency improvement device is characterized by comprising a connecting part connected with a cabin and further comprises a streamline fairing body fixed to the connecting part; the fairing body is used for improving turbulent flow or eddy flow between the cabin and a thrust steering device; the marine noise reduction and efficiency improvement device for the ship is used for being installed on the rear section of the top of a cabin and used for injecting new energy into air flow of a boundary layer, so that the air flow is still a smooth laminar flow after flowing out of the top of the cabin, and noise is reduced; the air flow can smoothly enter a propelling device, so that the propelling efficiency of the propelling device is improved, the turbulent flow or eddy flow formed between the cabin and the propelling device is reduced or weakened, and the problems that the resistance is large and the energy loss is increased when the turbulent flow or eddy flow enters the propelling device are solved.

Description

technical field [0001] The invention belongs to the field of aerodynamic boats, in particular to a marine noise reduction and efficiency improvement device installed on the top of the cabin of the aerodynamic boat and an aerodynamic boat with the marine noise reduction and efficiency improvement device. Background technique [0002] Airboat can also be translated as air propulsion boat or air propeller speedboat. Aerodynamic boats are generally powered by an internal combustion engine, which drives the propeller to rotate to generate driving force, and uses the joystick to drive the steering rudder to control the direction of travel. Its structure generally includes the hull, operating rudder, seat, engine, transmission system, propeller, steering rudder, etc. ;Aerodynamic boats, as a vehicle operating on the water surface or in wetland areas, have a broad foundation in many European and American countries regardless of their design, manufacture and application, especially i...

AI Technical Summary

Problems solved by technology

[0003] In the structure of the existing aerodynamic boat, due to the shape of the ship and the space requirements, the middle part of the hull forms a cabin higher than the hull, and there is still a certain distance between the cabin and the propulsion and steering system of the aerodynamic boat. There is turbulence or turbulence in the gas entering between the propellers of the aerodynamic boat, the resistance is large, and the energy loss increases, which affects the propulsion efficiency

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