KR101971853B1 - Vessel speed reduction apparatus with reverse propulsion - Google Patents

Abstract

The present invention relates to an apparatus for decelerating a ship (10), comprising: a water jetting means (20) having a nozzle tube (21) at the fore and aft bow of a ship (10) and generating a forward water jetting braking force; And control means (30) for detecting the risk of collision of the ship (10) and interrupting water injection by the water jetting means (20).
Thus, the braking force is generated in a short time in case of a risk of collision without causing a trouble in the operation of the ship because it does not protrude to the outside normally, and the stop or direction can be changed.

Description

[0001] VESSEL SPEED REDUCTION APPARATUS WITH REVERSE PROPULSION [0002]

The present invention relates to a decelerating type ship propulsion system, and more particularly, to a decelerating type ship decelerating device which does not normally protrude to the outside and causes a braking force to be generated within a short time in case of a risk of collision, Type ship decelerating apparatus.

Generally, the ship drives the propeller in reverse to avoid collision with other ships or objects during operation, but various means are added in order to more urgently stop the ship.

As a related patent, Korean Patent Laid-Open Publication No. 2009-0001550 discloses an apparatus for decelerating a ship, comprising: an installation part provided at the rear of the ship; and a second installation part connected to the installation part, And a parachute deployed to increase resistance. Accordingly, the parachute is deployed at a high position to improve the accuracy and promptness of the stopping point of the ship, and the effect of not causing damage to the engine due to the sudden stop is expected.

As another example of the prior patent, Korean Patent Registration No. 0414326 discloses a device for decelerating a ship, comprising: a panel device installed on the outer side of the hull, one on each side of the hull to increase linear friction when decelerating; And a hydraulic operating rod for operating the panel. Therefore, it is possible to easily reduce the speed when the ship rotates, and it is expected that the rotation speed is improved and the deceleration performance is improved.

In addition, a break plate system that extends in the orthogonal direction, a drag suit system using fluid resistance, a method of attaching a braking screw to a skater, and an additional braking force applied to the back of the rider, And the like have been proposed.

However, the air resistance type is not expected to have a great effect on a large-sized low-speed ship. In the case of a resistance attachment, since the apparatus is installed in the lower part of the water, the effect is less if the projection area is not sufficient in the traveling direction. The larger the size, the lower the practicality due to the increased risk of breakage or detachment of the adduct due to resistance.

1. Korean Patent Publication No. 2009-0001550 " Ship's decelerating device " (Open date: Feb. 18, 2009) 1. Korean Registered Patent No. 0414326 entitled " Deceleration Device for Ship " (Open date: Apr. 18, 2006)

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the prior art, and it is an object of the present invention to provide a braking system for a vehicle, which does not normally protrude to the outside, Type ship decelerating apparatus.

In order to achieve the above object, the present invention provides an apparatus for decelerating a ship, comprising: a water jetting means for generating a water jetting braking force toward a forward direction, the water jetting means having a nozzle tube at a bow port and a starboard port respectively; And control means for sensing the risk of collision of the ship and interrupting the water injection by the water jetting means.

According to the present invention, the water jetting means is characterized in that the capacities of the starboard pump and the starboard motor provided in the starboard nozzle pipe are set to be larger than those of the port pump and the port motor provided in the nozzle pipe of the port.

Further, according to the present invention, the water jetting means is characterized in that the end portion of the nozzle tube is rotatably accommodated so as to vary the water jetting direction.

According to the present invention, the control means includes an obstacle detector for detecting an obstacle within a predetermined distance, an alarm for alarming when an obstacle is sensed within a set distance, and a controller for interrupting water injection of the water jetting means in response to a signal from the obstacle detector .

As described above, according to the present invention, there is an effect that the braking force is generated within a short time in case of a risk of collision without causing a hindrance to the operation of the ship because it does not protrude to the outside normally and can stop or change the direction.

Brief Description of the Drawings Fig. 1 is a side view of a ship showing a state of installation of a reduction gear according to the present invention
2 is a front view of a ship showing the installation state of a reduction gear according to the present invention;
3 is a block diagram showing the control means of the deceleration device according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an apparatus for decelerating a ship 10, particularly an apparatus for emergency braking to avoid collision with other ships or objects during operation. The vessel 10 can be widely applied to small fishing vessels, passenger ships, high speed vessels, super large container ships, oil tankers, and the like.

According to the present invention, the water jetting means 20 is provided with a nozzle tube 21 on the fore and aft sides of the ship 10, respectively, so as to generate a water jetting braking force directed forward. The water jetting means 20 adopts a method of accommodating the impeller of the pump inside the nozzle tube 21 and driving the impeller of the pump by the motor. The upper end of the nozzle tube 21 is opened toward the bow at the port side and the starboard side of the ship 10, respectively, and the lower end is opened toward the bottom. As described above, the water jetting means 20 works less favorably in terms of the resistance to hull resistance and the steering performance because there are few adherents protruding outside the hull.

At this time, the water jetting means 20 controls the capacity of the starboard pump 23 and the starboard motor 24 provided in the starboard nozzle pipe 21 to be the same as that of the port pump 25 installed in the nozzle pipe 21 on the port side, Is set larger than the capacity of the motor (26). The impeller of each of the pumps 23 and 25 is located at a portion where the seawater arrives at the nozzle tube 21 and is connected to each of the motors 24 and 26 through a drive shaft (not shown) rearward. Vessels are required to comply with international rules on the right-hand side, and will rotate starboard in emergencies such as sea crashes. Accordingly, it is advantageous to set a large driving force of the starboard pump 23 and the starboard motor 24 in order to diversify the control corresponding to the emergency situation.

On the other hand, the water jetting means 20 may be configured to rotatably accommodate the end portion of the nozzle tube 21 so as to change the water jetting direction. So that the end portion is rotatable so as to vary the water jetting direction of the nozzle tube 21 in the port and starboard. For example, the nozzle tube 21 may be divided into an upstream end and a downstream end, and the downstream end may be rotated by a worm gear and a motor.

Of course, it is preferable that the nozzle tube 21 of the water jet means 20 is provided with a cover (not shown) at the inlet end and the outlet end to prevent adhesion of living things. In this case, the cover must be automatically opened prior to the operation of the motors 24 and 26 and the pumps 23 and 25.

According to the present invention, the control means (30) senses the risk of collision of the ship (10) and performs an operation of interrupting the water jetting by the water jetting means (20). AIS (Automatic Identification System), PTMS (Port Traffic Management System), and ECDIS (Electronic Chart Display and Information System) are used for location information on ships and obstacles at sea. The control means 30 simultaneously operates the starboard motor 24 and the port motor 26 of the control means 30 in response to the detection of the risk of collision to generate braking force by water jetting at the bow of the ship 10.

At this time, the control means 30 includes an obstacle detector 31 for detecting an obstacle within a predetermined distance, an alarm 33 for alarming when an obstacle is detected within a set distance, a water jetting means And a controller 35 for interrupting the water injection of the water. The obstacle detector 31 detects a large and small obstacle with a radar installed on the ship 10 but can be associated with the above-described Automatic Identification System (AIS), Port Management System (PTMS), Electronic Chart System (ECDIS) and the like. The alarm 33 includes audible and visual alarms, and a method of varying the alarm output in addition to the simple on / off operation is preferred. The controller 35 is separately configured and connected to the integrated control management system SCMS (Ship Control and Management System) or integrated into the SCMS.

In normal operation, the control means (30) causes the water jetting means (20) to direct the water jetting direction in the ship forward direction to generate a braking force on the ship to travel, thereby shortening the stopping distance. However, according to the determination of the obstacle approach path based on the obstacle detector 31, the output of the starboard motor 24 may be increased or the starboard motor 24 may be operated to induce starboard swing of the ship 10.

The water jetting device 20 according to the present invention can be used repeatedly instead of one-time. Particularly, it is possible to use the water jetting device semi-permanently in the case of a small-sized ship (including a yacht or a motor boat)

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: Ship 20: Water jetting means
21: nozzle tube 23: star pump
24: starboard motor 25: port pump
26: port motor 30: control means
31: Obstacle detector 33:
35:

Claims (4)

An apparatus for decelerating a ship (10) comprising:
A water jetting means (20) having a nozzle pipe (21) at the fore and aft bow of the ship (10) and generating a forward water jetting braking force; And
And control means (30) for sensing the risk of collision of the ship (10) and interrupting the water injection by the water jetting means (20)
The water jetting means 20 has the capacity of the starboard pump 23 and the starboard motor 24 installed in the starboard nozzle pipe 21 as the capacity of the port pump 25 and the port motor 25 26) of the in-line type ship. delete The method according to claim 1,
Characterized in that the water jetting means (20) rotatably accommodates the end portion of the nozzle tube (21) so as to change the water jetting direction. The method according to claim 1,
The control means 30 includes an obstacle detector 31 for detecting an obstacle within a predetermined distance, an alarm 33 for alarming when an obstacle is detected within a set distance, a water jetting means 20 for responding to a signal of the obstacle detector 31, And a controller (35) for interrupting the water injection of the water.

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