Device for propelling and turning hull

Abstract

The present invention relates to a device for propelling and turning a hull, wherein the resistance acting on the stem of the hull is converted and the hull can be moved not only in the forward and backward directions but also in the left and right directions so as to improve the mobility and evasion capacity of the hull. The device for propelling and turning a hull comprises: a manifold arranged in the lengthwise direction in the lower portion of the hull so as to discharge the water introduced at the stem side toward the stern side; a propelling means, the top of which is rotatably connected to the stern side end of the manifold, the propelling means being arranged so as to jet water in a lateral direction; and a steering means, which is rotatably coupled to the stern side end of the propelling means such that the steering means rotates the propelling means in a given direction by means of rotating force applied from an external source.

Description

TECHNICAL FIELD[0001]The present invention relates to a device for propelling and turning a warship or a ship that can advance and turn the warship or the ship by quickly ejecting seawater introduced through a stem of the warship or the ship, and more particularly, to a device for propelling and turning a warship or a ship that can enable to be an environment-friendly warship or ship due to decrease of a CO2 discharge amount by saving much fuel while improving mobility of the warship or the ship and that can improve convenience and stability when docking.BACKGROUND ART[0002]In general, a warship or a ship is classified into an oared vessel, a sailboat (wind force), a steamboat (mechanical power generated by coal or oil as fuel), and a nuclear ship (mechanical power generated by nuclear fuel) by power that moves the ship or the warship, a name of a steamboat is used for a powerboat propelled by mechanical power regardless of a kind, but a steamboat of a narrow meaning indicates a shi...

AI Technical Summary

Benefits of technology

The present invention is about a device that allows a warship or ship to move in different directions, including front, back, and lateral movement. This increase in freedom of steering allows for quicker and smoother changes in direction, even without using a guide ship. The device includes an auxiliary propulsion pipe that can be installed on the side of the warship or ship, allowing for side movement and reduction of revolution radius. This makes it faster and more maneuverable, and enables quick avoidance movements and attacks on the enemy. Additionally, using an auxiliary propulsion pipe can increase economic efficiency and speed of the warship or ship's operation.

Problems solved by technology

A screw propeller, which is a propulsion device of such a conventional warship and ship has developed according to a trend of increase in speed and size of a warship or a ship, but there is a problem of a vibration and noise by cavitation occurring when increasing a speed of the warship or the ship, and in this case, the cavitation is a phenomenon occurring when a propeller having a high load rotates with a rotation speed exceeding the threshold rotation number, and generally, the cavitation indicates a phenomenon that a bubble filled with vapor or air is visualized and grew by lowering a pressure in a constant temperature.

In a propeller, which is such an existing general warship and ship propelling device, when a load is high, cavitation easily occurs and thus propulsion efficiency is deteriorated and a vibration and noise occurs in the warship or the ship, and damage by erosion and flexure of a propeller blade operates as an obstructive factor in sailing of the warship or the ship, and for maintenance of the propelling device, even in an urgent situation, in a state in which the warship or the ship is stopped, maintenance should be performed and thus there is a problem that maintenance work efficiency is deteriorated.

Therefore, when an urgent situation occurs in a high speed vessel, a fireboat, a rescue ship, a patrol craft, and a patrol boat, there is a problem that a warship or a ship requiring a high speed and mobility cannot perform a function thereof due to generation of cavitation.

Further, when an object that may collide approaches in an advancing direction, there is a problem that it is difficult for an existing propeller warship and ship to perform quick turning and sudden stop, and when a large-sized warship or ship anchors at a port, a revolution radius thereof is much greater than that of a small warship and ship and thus there is a problem that the large-sized warship or ship should anchor with help of a ship (guide ship) having a relatively small revolution radius.

Images