A ternary vector pump-jet propeller with dual-stator drive and integrated power unit

Abstract

A three-element vector pump-jet thruster with double stator drive and integrated power unit. The invention relates to the technical field of thrusters. One end of a hydraulic cylinder is screwed to a vertical rod in the guide rail of the hydraulic cylinder, and the inner end of the vertical rod is movable. It is clamped in the guide rail of the hydraulic cylinder, and the guide rail of the hydraulic cylinder is fixed on the outer wall of one end of the water jet propulsion pump. The piston rod fixing groove guide rail is fixed, and the movable card in the piston rod fixing groove guide rail is provided with a hydraulic cylinder piston rod groove, and the piston rod of the hydraulic cylinder is movable and set in the hydraulic cylinder piston rod groove. Using magnetic levitation bearings, six-phase dual-stator drive, integrated design of shaftless motor and helical axial flow pump, and three-dimensional vector control technology for nozzles, it realizes efficient, high-redundancy propulsion of submersibles and independent and effective control of navigation attitude .

Description

technical field [0001] The invention relates to the technical field of propellers, in particular to a ternary vector pump-jet propeller with dual stator drives and integrated power units. Background technique [0002] The propulsion power of early ships mainly relied on manpower and wind power, and steamships equipped with paddle wheels have been eliminated by ships using propellers as propellers. By the 1920s, Britain applied water jet propulsion devices to submarines for the first time. As a new type of power device, water jet propulsion is widely used in the fields of military ships and submarine propulsion. Compared with propellers of traditional power units, water jet propulsion has the advantages of higher propulsion efficiency at high speeds, less vibration and noise, better shallow navigation performance, better maneuverability, better adaptability to variable working conditions, and better anti-cavitation performance. . At present, many scholars at home and abroa...

AI Technical Summary

Problems solved by technology

When the water flows around the rudder blade again, the flow on the back surface will be longer than that on the front surface, and the flow velocity on the back surface will be faster, and the static pressure on it will be lower than that on the front surface. There will be a pressure difference on the back surface of the water, which will drive the deflection of the submersible, but the increase in water resistance will affect the speed

[0004] The current yaw rudder and nozzle technology can only achieve rapid yaw while maintaining a high speed. At low speed or in the starting state, the pressure difference between the upstream surface and the backwater surface of the yaw rudder is small, which cannot make the submersible effectively Yaw, not to mention pitch assist

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