Low-water-resistance boat sucked from the front and pushed from the back

Abstract

The invention discloses a low-water-resistance boat sucked from the front and pushed from the back. The boat comprises a hull and a speed-increasing cabin arranged below a hull bottom. The hull bottom comprises a horizontal air resistance section, a contraction section, a water inlet section, an arching section and a water outlet section in sequence from front to back, wherein the horizontal air resistance section, the contraction section, the water inlet section, the arching section and the water outlet section are connected end to end and one by one. An opening in the back end of the speed-increasing cabin is a water outlet, and the water outlet is located on the tail portion of the hull. An opening in the front end of the speed-increasing cabin is a water inlet, and the upper end of the water inlet in the wall of the speed-increasing cabin is located in the middle of the horizontal air resistance section. The hull bottom face of the horizontal air resistance section, the hull bottom face of the water inlet section and the hull bottom face of the water outlet section are parallel to one another. The arching section arches upwards, and two impellers are arranged in the arching section and are in transmission connection with a motor respectively, wherein the two impellers are located at the same horizontal position and arranged side by side. Because portions of the speed-increasing cabin become thin sequentially from front to back, water supplied to the impellers is more sufficient, water flow is faster, and the front suction and back pushing effects are more obvious. Besides, because the arching section for the installation of the impellers is arranged and the working area of the impellers is much larger than the sectional area of a cavity below the water outlet section, the boat has a higher running speed.

Description

[0001] [0002] This application is a divisional application. The original patent number is: 201110118724.2, the application date: April 29, 2011, and the invention name is: a boat with low water resistance. technical field [0003] The invention relates to a ship with low water resistance that sucks forward and pushes back. The ship includes large, medium and small ships, submarines, ships and aircraft carriers. Background technique [0004] The current boats are very slow, and the concept of high horsepower and low speed has been adopted. The ensuing problem is that the speed of the ship cannot be increased simply by increasing the propeller speed. There are two reasons for this phenomenon. One is that the resistance of water is greater, and the deeper the draft, the greater the resistance; the other is air intake, because the ship is driving between water and air, and the natural flow rate of water is at a certain depth. There is a certain limit. When the speed of th...

AI Technical Summary

Problems solved by technology

In order to reduce the contact area and resistance between the ship and the water, the shape of the bottom of the ship is warped forward based on the horizontal plane. When the ship is running, the bottom surface of the front end of the ship is away from the water surface. If it is pumped into the speed-increasing tube, it is easy to have the above-mentioned air intake problem, which will affect the further improvement of the ship's speed

On the other hand, the water inlet diameter at the front end of the speed-increasing pipe is similar to the water outlet diameter at the rear end. When the impeller drains water at high speed, the water supply is limited, which ultimately affects the drainage speed, and the speed-up effect is not ideal.

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