Ship body impulsed by propeller

Abstract

The invention is concerned with a hull forced with screw propeller, relating to hull with water line. The shell of ship has bow, hull and buttock and the buttock has at least one screw propeller. At both sides of hull, there are diversion pipes with same size and the height of diversion pipes is not higher than water line. There is joining cavity on buttock, and the diversion pipe is connecting with the said joining cavity when the infall of joining cavity in on the bow. The joining cavity has at least one water outlet, and the screw propeller set on the water outlet and the ratio of section to infall and water outlet is 1:0.8 to 1.2. The large part of water on top of bow does not need flow and for the revolving centrifugal effect of airscrew, the outlet speed of water outlet is quick and the water of diversion pipe flows quickly to reduce the resistance of bow. It expedites the speed of boat and shorts the shipping time and cost of energy to boat.

Description

technical field [0001] The invention relates to ship technology, in particular to a ship hull propelled by propellers. Background technique [0002] Ships are an important means of transportation in the modern transportation industry. Ships sail in oceans or inland rivers, and compared with road or rail transportation tools, they have the advantages of large single-carrying capacity and low carrying cost. However, the slow speed of the ship and the long transportation time are still difficult problems for the shipping industry. There are many reasons, but the main reason is that the ship is sailing in the water, and the resistance of the water to the ship is more than that of the air to the car or the train. The resistance is much greater. As the saying goes, cutting through the waves shows that it is difficult for ships to navigate in the water. At present, the ship includes a hull. The hull is mainly composed of a hull and a deck. The hull is divided into a bow, a hull a...

AI Technical Summary

Problems solved by technology

However, the slow speed of the ship and the long transportation time are still difficult problems for the shipping industry. There are many reasons, but the main reason is that the ship is sailing in the water, and the resistance of the water to the ship is more than that of the air to the car or the train. The resistance is much greater. As the saying goes, it is difficult for a ship to navigate in the water.

At present, the ship includes a hull. The hull is mainly composed of a hull and a deck. The hull is divided into a bow, a hull and a stern from front to back. A propeller and a rudder are arranged on the stern, and an engine is installed in the hull. The engine drives the propeller to rotate. Generate backward thrust so that the ship can sail in the water; in order to increase the speed, one is to equip the hull with a high-horsepower engine to increase the propulsion of sailing, and the other is to design a streamlined hull to reduce the speed of sailing. Resistance, the streamlined hull and the arc-shaped bow with a wide top and a narrow bottom can speed up the diversion of water to both sides of the bow and reduce resistance, but the diverted water still hits the hull and generates a turning force to further improve the resistance. Block the progress of the hull, so the resistance of the hull in the water is still relatively large, and the speed of the ship is still slow

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