KR101994556B1 - Propulsion Apparatus of Ship - Google Patents

Abstract

The present invention relates to a propulsion device for a vessel, which propels a vessel in accordance with an injection of air without a screw or a propeller. According to the present invention, the propulsion device for a vessel includes: a first tubular body installed in the longitudinal direction of a hull, wherein water enters the first tubular body; a second tubular body installed in the longitudinal direction of the hull, wherein the water enters the second tubular body; and an air injection unit installed between the first tubular body and the second tubular body and sucking and spurting the water by the Venturi effect as the air under high pressure is injected and sprayed to the inside of the first tubular body or the second tubular body. The air injection unit includes: multiple nozzles arranged in a circumferential direction; and an air injection pipe connected to an air supply source and injecting the air into the multiple nozzles. According to the present invention, the propulsion device for a vessel improves efficiency and simplifies a structure by sucking the water and spurting the water with the air by the Venturi effect generated in accordance with the injection of the air. Moreover, the propulsion device for a vessel can perform propulsion while easily changing forward and backward movements.

Description

Propulsion Apparatus of Ship [0002]

The present invention relates to a propulsion device for a ship, and more particularly to a propulsion device for a ship propelled by the injection of air without a screw or a propeller.

The hull obtains its propulsion by a screw or propeller attached to the rear of the hull, and the screw or propeller is powered by a high capacity prime mover. As the screw or propeller is rotating, the wing feels as if the wind is blowing, pushing the water backward and the ship advancing by the reaction.

However, such a screw or a propeller propulsion vessel is not easy to clean when various foreign objects are caught in a screw or a propeller, and it is difficult to manage and handle the same. In addition, when a rope or a cloth is wound on a screw or a propeller, a load is applied to the prime mover, which often breaks the prime mover or damages a screw or a propeller.

On the other hand, when a rope or a net is wound on a screw of a ship used in a conventional farm, etc., it is common to enter into water and remove it. In such a case, it is easy to remove foreign matter if the ship is small, but it is dangerous and difficult to remove the rope or the net wound on the screw by entering the water in the winter when the ship is large or heavy. .

If the rope and net used in the aquaculture are frequently wound on the screw, the engine will become hot and the force will weaken. The rope and the net wound on the screw must be removed and then the fish will go out to the fishing ground or the sea. There was a number.

In order to secure this point, a water jetting type vessel capable of making two or more water jet bodies so that one can go to another even if it fails is disclosed in Korean Registered Utility Model No. 20-0251356. Korean Registered Utility Model No. 20-0251356 is a ship capable of advancing and reversing with a water injection type without a screw, and pushes the ship while sucking or spraying water while spreading and folding two wings.

As such, the propulsion of a ship is usually dependent on the propulsion of the propeller, or on the water jetting force. However, due to the rotational speed of the screw and the resistance of the water, there is a limit to the forward and backward speed of the ship. Also, a ship which obtains propulsive force by injecting water into the water from the Pimpro has been developed. There is a problem that it is low.

In addition to being susceptible to failure of the screw due to various reasons, the ship is stopped at the time of failure. In contrast, a propeller having an adjustable blade has been developed, which is often composed of several propeller devices, There is a problem that the exposed screw is liable to breakdown.

Further, since the propeller is connected to the engine via the shaft, the reduction gear, and the control device thereof, there is a problem in that the structure is complicated and a large mechanical strength is required.

Accordingly, Korean Unexamined Patent Application Publication No. 10-2006-0061447 and Korean Unexamined Patent Publication No. 10-2008-0076644 disclose an air pressure propulsion vessel capable of operating a hull by air pressure without a screw or a propeller for ship propulsion.

Korean Patent Laid-Open No. 10-2006-0061447 discloses a hull structure comprising a compressor installed at the rear of a hull, a compressed air discharge pipe connected to the compressor for pushing the compressed air, And a motor for driving the compressors.

Korean Patent Laid-Open No. 10-2008-0076644 discloses an air compressor driven by an engine and sucking air through an intake pipe to discharge high-pressure air through an exhaust pipe, and an exhaust pipe connected to the exhaust pipe, Pressure air tank from the large-capacity high-pressure air tank through the high-pressure air discharge pipe, the on-off valve and the discharge air control device for propelling the ship in the forward direction, and a high- Pressure air tank, a pair of front connecting pipes connected to both front sides of the ship from the large-capacity high-pressure air tank, and high-pressure air controlled through the front connecting pipe, the on-off valve, and the air- In order to maintain the balance of the ship at the lower part of the front side of the ship, Pressure air controlled by a front connecting pipe, an on-off valve and an ejection air control device, thereby to maintain the balance of the ship at the bottom of the front side of the ship, Pressure propulsion-free high-pressure air propulsion system comprising a front-end discharge pipe, a central control device connected centrally to control the engine, various opening / closing valves, and various air- It is a ship.

In this way, the pneumatic propulsion vessel capable of operating the hull with the air pressure without the screw or the propeller is required to be improved because the efficiency of obtaining the propulsion force is low and the structure is complicated.

Korean Patent No. 20-0251356 (Registered on October 10, 2001) Korean Patent Laid-Open No. 10-2006-0061447 (Publication date: 2006.06.08.) Korean Patent Laid-Open No. 10-2008-0076644 (published on August 20, 2008).

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned needs, and it is an object of the present invention to provide an apparatus and a method for improving the efficiency of a ship by simplifying the structure by sucking water and discharging it along with air, Device.

It is another object of the present invention to provide a propulsion device for a ship capable of sucking water according to jetting of air and jetting water together with air while easily changing and advancing forward and backward.

In order to achieve the above object, a propulsion device for a ship according to the present invention comprises a first pipe body installed along a longitudinal direction of a hull, through which water enters and exits, a second pipe body installed along the longitudinal direction of the hull, And an air injection injecting part provided between the first tubular body and the second tubular body and sucking and discharging water by the venturi effect as the high pressure air is injected toward the inside of the first tubular body or the second tubular body, The jetting section has a plurality of nozzles arranged along the circumferential direction, and an air inlet tube connected to an air source for injecting air into the plurality of nozzles.

A spiral guide passage is formed on the inner surface of the first tube body or the second tube body so as to increase the suction force and the rotational force of water by the venturi effect and minimize the friction with water.

The plurality of nozzles of the air injection injection part are formed in the hollow ring member at intervals along the circumferential direction to form a nozzle body.

The nozzle body is provided at both sides of the air injection pipe into which air is injected into the ring member, and the air injection pipe is provided with a forward / backward converter for selectively advancing or reversing the air by injecting air into one or both of the ring members .

The interior of the first tubular body or the second tubular body is formed into an inclined cylinder whose inner diameter increases as the distance from the air injection / ejection portion increases.

According to the propulsion device for a ship according to the present invention, the water is sucked in accordance with the vantity effect caused by the jet of air and is ejected together with the air, thereby improving the efficiency and simplifying the structure, .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing a state in which a propulsion device of a ship according to a first embodiment of the present invention is installed on a ship; Fig.
Fig. 2 is a perspective view showing a main constituent part of Fig. 1;
3 is a perspective view showing the first tubular body, the second tubular body, and the air injection injection portion in Fig.
Fig. 4 is a perspective view showing a state in which the first tubular body and the outside of the second tubular body are flatly reinforced with the same diameter in Fig. 3;
5 is a perspective view of the air injection unit of FIG.
FIG. 6 is an elevational view of the air injection unit of FIG. 5;
FIG. 7 is an explanatory view showing an optimum size ratio of the first tube, the second tube, and the air injection unit shown in FIG. 3;
FIG. 8 is an explanatory view showing an air flow and a flow of water when the ship is advanced (rightward) in the propulsion device of the ship according to the embodiment of the present invention. FIG.
FIG. 9 is an explanatory view showing an air flow and a flow of water when the ship is backward (leftward) in a propulsion device of a ship according to an embodiment of the present invention. FIG.
10 is a configuration diagram showing a state in which a propulsion device of a ship according to a second embodiment of the present invention is installed on a ship.
11 is a perspective view seen from the lower side of Fig.
12 is a configuration diagram showing a state in which a propulsion device of a ship according to a third embodiment of the present invention is installed on a ship.
13 is a perspective view seen from the lower side of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

1 is a perspective view showing a main constituent part of Fig. 1, Fig. 3 is a cross-sectional view of the first tubular body of Fig. 1 and Fig. A second tubular body and an air injection injection part.

As shown in the drawings, a propulsion apparatus 100 for a ship according to a first embodiment of the present invention includes a first tube 110, a second tube 120, and an air injection / discharge unit 130, (M) formed on the lower side of the substrate (P). The mounting portion M is a curved surface plate which is spaced from the hull plate P and is provided along the longitudinal direction of the hull.

The case 140 is provided on the head surface of the mounting portion M and the first tubular body 110 and the air injection and discharge portion 130 and the second tubular body 120 are connected to the case 140 via the support base 150, Are installed along the longitudinal direction of the case 140 in a line. A direction key 160 for determining the cruise direction of the ship is installed on one side of the case 140 in the longitudinal direction.

The first tubular body 110 and the second tubular body 120 are installed along the longitudinal direction of the hull at both sides of the air injection / discharge part 130, that is, along the longitudinal direction of the mounting part M and the case 140 And is attached to the outer bottom surface of the case 140.

Spiral guide flow passages 111 and 121 are formed on the inner surfaces of the first and second tubes 110 and 120 in order to increase the suction force and the rotational force of water by the venturi effect and to minimize friction with water. The inside of the first tubular body 110 and the second tubular body 120 are inclined cylinders having an inner diameter larger as the distance from the air injection / dispensing part 130 increases (see FIG. 3). The first tubular body 110 and the second tubular body 120 may be formed of a first tubular body 110 'and a second tubular body 120' that are outside of the first tubular body 110 and the second tubular body 120, (See Fig. 4).

FIG. 5 is a perspective view of an air injection / ejection unit 130 of a propulsion apparatus of a ship according to a first embodiment of the present invention, and FIG. 6 is an elevation view of the air injection / ejection unit 130 of FIG.

3 to 6, the air injecting / spraying unit 130 is provided between the first tube 110 and the second tube 120, so that high-pressure air is injected into the first tube 110 or the second tube 110, As the water is sprayed toward the inside of the second tube 120, the water is sucked and ejected by the venturi effect.

The air injecting and spraying unit 130 includes a plurality of nozzles 131 and 131 'arranged in the circumferential direction and an air inlet pipe 130 connected to an air source (not shown) (132). The plurality of nozzles 131 and 131 'of the air injecting and spraying unit 130 are formed on the hollow ring members 133 and 133' at intervals along the circumferential direction to form the nozzle bodies 131A and 131B.

The nozzle bodies 131A and 131B are provided on both sides of the air injection pipe 132 into which the air is injected into the ring members 133 and 133 ', and the air injection pipe 132 is provided with one ring member 133, And a forward / backward converter 134 for selectively forwarding air to the ring member 133 'to advance or reverse the ship. As the forward / backward converter 134 operates vertically or horizontally, the air selectively flows into the ring member 133 or the other ring member 133 '. The forward / backward converter 134 may be a direction switching valve or the like.

The plurality of nozzles 131 and 131 'are formed so as to face the first tube 110 or the second tube 120 in an oblique direction according to the inclination of the inner surface of the first tube 110 or the second tube 120, Air flows along the guide passages 111 and 121 while being easily injected. An air passage is formed in the ring members 133 and 133 'along the circumferential direction so as to communicate with the plurality of nozzles 131 and 131'.

The plurality of nozzles 131 and 131 'are inclined in the helical direction of the guide paths 111 and 121 and the inclination of the guide paths 111 and 121 in the helical direction is perpendicular to the first tube 110 or the second tube 120 To 35 degrees with respect to the longitudinal axis. The plurality of nozzles 131 and 131 'are not only inclined according to the inclination of the inner surface of the first tube 110 or the second tube 120 but also inclined according to the helical direction of the guide paths 111 and 121 have. Since the air is injected according to the inclination of the nozzles 131 and 131 ', the suction force and the rotational force of the water due to the venturi effect are increased to minimize friction with water.

FIG. 7 is an explanatory view showing an optimum size ratio of the first tube 110, the second tube 120, and the air injection / discharge part 130 of FIG. 7 are dimensions based on the inner diameters of the first and second tubes 110 and 120 and the inner diameters of the ring members 133 and 133 'of the air injection and discharge unit 130.

The length of the first tubular body 110 is denoted by A and the length of the second tubular body 120 is denoted by B and the length of the ring members 133 and 133 'on both sides of the air injecting / When the distance between the outer side surfaces is C, it is preferable that the length A is twice the length B and the distance C is half the length B. When the inner diameters of the end portions of the first tubular body 110 and the second tubular body 120 are denoted by D and the inner diameters of the ring members 133 and 133 'of the air injecting and spraying portion 130 are denoted by E, Is preferably 1/3 of the inner diameter D.

The case 140 is in the form of a rectangular tube, and the support 150 is inserted into the case 140 to support the air injection and dispensing part 130. The direction key 160 has a structure in which a rod 162 connected to the key body 161 is inserted into the mounting portion M and a key body driving portion 163 is provided at the end of the rod 162. [

In the propulsion device for a ship according to the first embodiment of the present invention constructed as described above, the forward / backward converter 134 is operated as shown in Fig. 8, and air is supplied from the air injection pipe 132 to the left nozzle 131 The high pressure air supplied from the air supply source (compressor or the like) is injected into the nozzle 131 on the left side through the air injection pipe 132 and then flows into the guide pipe 131 formed on the inner surface of the first tube 110, (A1b), and the pressure inside the first tube 110 is lowered due to the injection of air. Accordingly, the water is sucked from the right side of the second tube body 120 and is sprayed through the first tube body 110 together with the air W1a and the propulsion force of the ship advancing to the right side is obtained (W1b).

At this time, since the nozzle 131 is not only inclined according to the inclination of the inner surface of the first tube 110 but also is inclined along the spiral direction of the guide passage 111, As a result, the venturi effect increases the suction force and rotational force of the water, thereby minimizing the friction with water and achieving a high thrust force.

9, when the forward / backward converter 134 is operated to allow the air to flow through the air injection pipe 132 to the right nozzle 131 ', the high-pressure air supplied from the air supply source (compressor or the like) The air is injected into the nozzle 131 'on the right side through the air injection pipe 132 and flows in a spiral manner on the guide passage 121 formed on the inner surface of the second tube 120, The pressure inside the two-tube body 120 is lowered. Accordingly, water is sucked from the left side of the first tube 110, and is sprayed through the second tube 120 together with the air, so that the propulsion force for the ship to advance to the left is obtained.

At this time, since the nozzle 131 'is not only inclined according to the inclination of the inner surface of the second tube 120 but also is inclined according to the spiral direction of the guide passage 121, As a result, the suction force and the rotational force of the water due to the venturi effect are increased to minimize the friction with the water, and a high propulsion force is obtained.

Fig. 10 is a configuration diagram showing a state in which a propulsion device of a ship according to a second embodiment of the present invention is installed on a ship, and Fig. 11 is a perspective view as viewed from the lower side of Fig.

As shown in the figure, the propulsion device 200 of the ship according to the second embodiment of the present invention includes the first tubular body 110, the second tubular body 120, and the air injection / discharge part 130 of the first embodiment, A turbine (VT) is installed on both sides of the case (140) to increase propulsion.

FIG. 12 is a configuration diagram showing a state in which a propulsion device of a ship according to a third embodiment of the present invention is installed on a ship, and FIG. 13 is a perspective view seen from the lower side of FIG.

As shown in the drawing, the propulsion device 300 of the ship according to the third embodiment of the present invention includes the first tubular body 110, the second tubular body 120, and the air injection / discharge part 130 of the first embodiment, The turbine VT is installed on both sides and the bottom of the case 140 to further increase the propulsive force.

The remaining components of the propulsion apparatuses 200 and 300 of the second and third embodiments are similar to those of the first embodiment 100, and thus the same reference numerals are used for the same, and a detailed description thereof will be omitted.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100, 200, 300: Ship propulsion system
110: first tube body 120: second tube body
111, 121: guide passage 130: air injection /
131A and 131B:
131, 131 ': a plurality of nozzles 132: air inlet tube
133, 133 ': hollow ring member 134: forward / backward converter
140: Case 150: Support
160: direction key 161: key body
162: rod 163: key body drive part
P: Hull plate M: Mounting part

Claims (5)

A first tube 110 installed along the longitudinal direction of the hull and through which water enters and exits,
A second tubular body 120 installed along the longitudinal direction of the hull and through which water enters and exits,
The high pressure air is injected between the first tube 110 and the second tube 120 to be injected toward the inside of the first tube 110 or the second tube 120, And an air injecting / spraying unit 130 for sucking and discharging water by the air injecting /
The air injection unit 130 includes a plurality of nozzles 131 and 131 'arranged in the circumferential direction and an air inlet pipe 132 connected to the air source by injecting air into the plurality of nozzles 131 and 131' ),
The inner surface of the first tube 110 or the second tube 120 is formed with helical guide passages 111 and 121 for minimizing friction with water by increasing the suction force and rotational force of water by the venturi effect. The propulsion device of the ship. delete The method according to claim 1,
Wherein the plurality of nozzles of the air injection injecting unit are formed in a hollow ring member at intervals along the circumferential direction to form a nozzle body. The method of claim 3,
Wherein the nozzle body is provided on both sides of the air injection tube into which air is injected into the ring member,
Wherein the air injection pipe is provided with a forward / backward converter for selectively forwarding air to one or both of the ring members to forward or backward the ship. The method of claim 4,
Wherein the inside of the first tubular body or the second tubular body is an inclined cylinder having an inner diameter larger as the distance from the air injection / ejection portion increases.

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