WO2022191503A1

WO2022191503A1 - Engine output adjusting system, and ship comprising same

Info

Publication number: WO2022191503A1
Application number: PCT/KR2022/003021
Authority: WO
Inventors: 김지성
Original assignee: 현대글로벌서비스 주식회사
Priority date: 2021-03-08
Filing date: 2022-03-03
Publication date: 2022-09-15

Abstract

The present invention relates to an engine output adjusting system and a ship comprising same, and an engine output adjusting system of the present invention comprises an engine output limitation device for limiting a fuel injection amount of a fuel pump supplying fuel to an engine, and has a first rotation limitation unit and a second rotation limitation unit provided in a remotely movable fuel limitation unit, the first rotation limitation unit positioned to match a stopper in a limited power mode to permit limited engine output according to a set regulation, and the second rotation limitation unit positioned to match the stopper in a reserve power mode to permit the maximum engine output of the engine, so that the engine output adjusting system switches to the reserve power mode in an emergency situation during an operation of the ship to cope with the emergency situation of the ship through the release of an engine output limitation, and, if the system must return to an original state during the release of an emergency situation, the reserve power mode is switched to the limited power mode so that the ship can be operated through the engine output limitation, and thus the ship can be safely operated under any circumstance.

Description

Engine output control system and ship equipped therewith

The present invention relates to an engine power control system and a ship having the same.

The IMO approved the introduction of existing ships under the Energy Efficiency Existing Ship Index (EEXI) regulation.

EEXI is one of the methods for reducing GHG (Green House Gas) emissions. It is similar to the EEDI (Energy Efficiency Design Index) regulation that was implemented for existing new ships, and the concept is to regulate the existing ships in the same way.

Existing ships should calculate the EEXI index of the ship (Atained EEXI) and lower it below the EEXI value required by the MEPC, and the easiest way to lower the EEXI value is to limit the engine output.

The introduction of EEXI is January 1, 2023. In order to reduce GHG (Green House Gas) emissions, existing ships must lower the ship engine output below the standard value and install a device to limit it to meet Required EEXI ≥ Attained EEXI. do.

The method of limiting engine power is called EPL (Engine Power Limitation), and the guidelines for the EPL method were adopted at the 76th meeting of the MEPC, and the detailed guidelines will be further discussed at the 9th and 10th meetings of ISWG-GHG. . Based on the standards discussed up to the 8th ISWG meeting, it is required to satisfy the following requirements when installing EPL devices.

First, only for MC (Mechanically Controlled) engines, a locking device using a wire to a mechanical stop screw must be installed in the engine or a similar device must be installed so that the limited engine output cannot be released.

Second, when more than the limited engine output is required, the locking device must be released, and the fact that it has been released must be confirmed at the site.

Third, when the limited engine output is exceeded, the fact that the locking device is released must be confirmed at the site or through a separate Alert Monitoring System.

Fourth, the use of more than the limited engine output is permitted only in emergency situations during the operation of the ship. .

Fifth, the operation command of EPL must be operated remotely from Ship's Bridge.

In the case of MC (Mechanical Controlled) engines, the easiest way to limit engine output is to mechanically limit the rotation of the Governor Regulating Shaft = Fuel Rack. After adjusting the height of the mechanical stop screw, it is necessary to adjust it according to the fuel index, and then there is a method of performing the locking process by connecting the head of the screw and the fixing nut with a sealing wire, which is a locking device.

However, in the method of mechanically limiting the rotation of the governor adjustment shaft, the following problems and difficulties are expected when the crew member directly releases the locking device in an emergency.

First, when it is necessary to use Reserve Power in an emergency situation on the ship, there is a time problem that the crew must release the locking device directly, and remote operation (from Ship's Bridge), an additional requirement at the 8th ISWG-GHG meeting ) is not satisfied.

Second, the height of the stop screw should be adjusted after cutting the sealing wire, which is a locking device, but there is a problem in that it is difficult to determine how far the amount of height adjustment should be adjusted.

Third, the original purpose of the stop screw is to prevent overshooting of the engine, but if it exceeds this limit, it may have a negative effect on the engine.

Fourth, when it is necessary to use the reserve power, there is an inconvenience in that the crew must manually remove the locking device and manually record it in the OMM.

Fifth, after using the reserve power, the system must be restored, and proof of restoration must be submitted to the administration, but there is a possibility of data manipulation. There are some things that are difficult to do on your own.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is not only to remotely and easily release the engine power limitation (reserve power mode) in an emergency situation during the operation of a ship, It is to provide an engine power adjustment system that enables easy conversion from a reserve power mode to a limited power mode remotely even when it is necessary to recover from an emergency situation, and a ship having the same.

Another object of the present invention is to provide an engine power adjustment system capable of transmitting information on switching between a reserve power mode and a limited power mode to a recording device so that the record of mode change can be confirmed through the recording device, and having the same to provide ships that

An engine output adjustment system according to an aspect of the present invention is an engine output adjustment system including an engine output limiting device for limiting a fuel injection amount of a fuel pump that supplies fuel to an engine, wherein the engine output limiting device includes the fuel pump and a governor connected to the fuel control shaft to control the overall fuel injection amount according to the engine rotation speed and load; and a fuel limiter configured to support and fix a stopper directly installed on the fuel control shaft at a predetermined position to limit the fuel injection amount when the engine is overloaded, wherein the fuel limiter includes a guide installed below the fuel control shaft where the stopper is installed. wealth; a transfer unit installed on the guide unit to move back and forth along the guide unit; a first rotation limiter provided on one side of the upper surface of the transfer part and implementing a limited power mode that allows limited engine output according to a prescribed regulation; a second rotation limiting unit provided on the other side of the upper surface of the transfer unit and implementing a reserve power mode that allows the maximum engine output of the engine; and moving the transfer unit back and forth according to the limited power mode or the reserved power mode so that the first rotation limiting part coincides with the stopper in the limited power mode, and the second rotation limiting part in the reserve power mode It may include a driving unit to match the stopper.

Specifically, the guide unit may include: a rack gear installed on a bracket integral with the body of the engine; and a pinion gear installed in the transfer unit, and may be capable of moving the transfer unit forward and backward by a combination of the rack gear and the pinion gear.

Specifically, the guide part may be a sliding rail installed on a bracket integral with the body of the engine.

Specifically, the first rotation limiting part is installed on one side of the upper surface of the transfer part, and when the fuel control shaft rotates to a position that allows limited engine output according to a predetermined regulation, it comes into contact with the stopper to rotate the fuel control shaft a first screw formed with a first height at which it is stopped; and a first lug installed on a side surface of the transfer unit at a position corresponding to the first screw, wherein the second rotation limiting unit is installed on the other side of the upper surface of the transfer unit, and the fuel control shaft is the maximum value of the engine. a second screw formed at a second height in contact with the stopper to stop the rotation of the fuel control shaft when the engine is rotated to a position allowing engine output; and a second lug installed on a side surface of the transfer unit at a position corresponding to the second screw.

Specifically, the first rotation limiting part and the second rotation limiting part include a locking device for sealing the height of the first screw and the second screw from being arbitrarily changed, wherein the locking device includes the first screw and the first lug to prevent arbitrarily changing the height of the first screw, or connect the second screw and the second lug to prevent arbitrarily changing the height of the second screw, or the first screw and the second screw may be connected to prevent arbitrarily changing the height of each of the first screw and the second screw.

Specifically, the first height of the first screw may be determined according to the fuel index value of the limited engine output, and the second height of the second screw may be determined according to the fuel index value of the maximum engine output of the engine. have.

Specifically, the driving unit may include: a cylinder; a piston reciprocating inside the cylinder; and a piston rod connecting one side of the piston and the transfer part, wherein the piston rod has a reciprocating motion distance for moving the transfer part back and forth between the first rotation limiting part and the second rotation limiting part with a separation distance and may be the same.

Specifically, it further comprises a sensor for detecting which rotation limiting part of the first and second rotation limiting part coincides with the stopper, wherein the sensor part is provided on one side of the cylinder and detects the piston in a reverse state a first position sensor; and a second position sensor provided on the other side of the cylinder and sensing the piston in an advanced state, wherein the separation distance between the first position sensor and the second position sensor is the first rotation limiter and the second position sensor. It may be the same as the separation distance between the two rotation limiters or the reciprocating movement distance of the piston.

Specifically, it may further include a ship propulsion control system for controlling the forward and backward movement of the transfer unit by operating the driving unit according to the operation of a selection switch for selecting the limited power mode or the reserve power mode.

Specifically, the ship propulsion control system, in order to determine whether the current state of the fuel restriction unit is normally moved according to the mode selected by the selection switch, which rotation restriction unit among the first and second rotation restriction units coincides with the stopper When information on whether or not information has been transmitted from the first and second position sensors is transmitted The fuel-revolution curve set according to the power mode or the limited power mode is changed, and information indicating that the current state of the fuel limiter is not normally moved according to the mode selected by the selection switch is transmitted from the first and second position sensors In this case, the crew may be notified through an alarm without changing to the fuel-rpm curve set according to the reserve power mode or the limited power mode.

Specifically, a recording device for receiving and recording information that the current state of the fuel restriction unit is normally moved according to a mode selected by a selection switch for selecting the limited power mode or the reserved power mode from the first and second position sensors. may include

Specifically, in the recording device, when the fuel limiter is in the limited power mode and an emergency occurs and the reserve power mode is selected by the selection switch, the information that the second rotation limiter matches the stopper is transmitted from the second position sensor, and automatically records engine power limit release information that is switched from the limited power mode to the reserve power mode according to the transmitted information, and the fuel limiter is in the reserve power mode, When the emergency situation is released and the limited power mode is selected by the selection switch, the first rotation limiter receives information matching the stopper from the first position sensor, and in the reserve power mode according to the transmitted information It is possible to automatically record the engine power limit restoration information converted to the limited power mode.

A ship according to another aspect of the present invention includes the engine power adjustment system described above.

The engine output adjustment system according to the present invention and a ship having the same include a first rotation limiter that is positioned to coincide with a stopper in a limited power mode and allows limited engine output according to a prescribed regulation, and reserve power In Reserve Power Mode, the second rotation limiting part that is positioned to match the stopper and allows the maximum engine output of the engine is provided in the remotely movable fuel limiting part, so that during the operation of the ship, in an emergency, reserve power mode It is possible to cope with an emergency situation of the vessel by releasing the engine power limit by converting it to It is possible to safely operate the vessel under any circumstance.

In addition, the engine output adjustment system according to the present invention and a ship having the same can automatically switch between the limited power mode and the reserve power mode to move the position of the first and second rotation limiting units, and are installed in the first and second rotation limiting units There is no need to unnecessarily cut the first and second locking devices that are used, and there is no need for the crew to directly adjust the height of the first and second rotation limiters as before after the mode is switched.

In addition, the engine output adjustment system according to the present invention and a ship having the same, according to the positions where each of the first and second rotation limiters coincide with the stopper, limit the engine output to be switched from the limited power mode to the reserve power mode in case of an emergency By configuring not only the release information, but also the engine power limit restoration information, which is converted from the reserve power mode to the limited power mode, in the recording device when an emergency is released, the evidence that the restoration has been mandatory to be submitted to the administration is separately provided. Not only does it not need to be prepared, it can also rule out the possibility of data manipulation by handwritten records in OMM.

1 is a block diagram of an engine power adjustment system provided in a ship according to an embodiment of the present invention.

2 is a block diagram of an engine power limiting device in an engine power adjusting system provided in a ship according to an embodiment of the present invention.

3 is a plan view of the fuel restriction unit of FIG. 2 .

4 is a side view for explaining a case in which the fuel limiting unit of the present invention is in a limited power mode.

5 is a front view of a state in which the first rotation limiter and the stopper are matched in FIG. 4 .

6 is a side view for explaining a case in which the fuel limiting unit of the present invention is in the reserve power mode.

7 is a front view of a state in which the second rotation limiter and the stopper are matched in FIG. 6 .

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

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

1 is a block diagram of an engine power adjusting system provided in a ship according to an embodiment of the present invention, and FIG. 2 is a configuration of an engine power limiting device in an engine power adjusting system provided in a ship according to an exemplary embodiment of the present invention. 3 is a plan view of the fuel restriction unit of FIG. 2, FIG. 4 is a side view for explaining a case where the fuel restriction unit of the present invention is in a limited power mode, and FIG. 5 is a first rotation restriction unit and a stopper in FIG. It is a front view of the matched state, FIG. 6 is a side view for explaining a case where the fuel limiter of the present invention is in the reserve power mode, and FIG. 7 is a front view of the state in which the second rotation limiter and the stopper are matched in FIG.

As shown in FIGS. 1 to 7 , the engine output adjustment system 1 according to an embodiment of the present invention includes safety devices for protecting the engine 600 against an abnormal operating state of the engine 600 . As one of them, by preventing excessive fuel injection from the fuel pump 500 when the engine 600 is overloaded, noise increase of the engine 600, air pollution caused by excessive exhaust gas emission, and durability of the engine 600 are prevented. can be maintained.

In the present embodiment, the engine 600 may be a diesel engine used for propulsion of a ship and for power generation on land. Hereinafter, a case of a diesel engine provided in a ship will be described.

The engine output adjustment system 1 may include an engine output limiting device 100 , a ship propulsion control system 200 , a recording device 300 , and a fuel pump 500 .

The engine output limiting device 100, when supplying fuel to the engine 600 through the fuel pump 500, can control the overall fuel injection amount according to the rotation speed of the engine 600 and the load, as well as the engine ( It is possible to prevent excessive fuel injection from the fuel pump 500 when the 600 is overloaded, thereby preventing an increase in noise of the engine 600 , air pollution caused by excessive exhaust gas emission, and maintaining the durability of the engine 600 .

The engine output limiting device 100 is connected to the fuel pump 500 and the fuel control shaft 120 to control the overall fuel injection amount according to the rotation speed of the engine 600 and the load, which is separate from the fuel control shaft. It may include a stopper 130 directly installed on the 120 and a fuel limiter 140 for supporting and fixing the stopper 130 at a predetermined position to limit the fuel injection amount when the engine 600 is overloaded.

Here, the fuel control shaft 120 may rotate to adjust the fuel injection amount of the fuel pump 500 . For example, when rotating in a clockwise direction, the fuel injection amount increases, and when rotating in a counterclockwise direction, the fuel injection amount can decrease.

In this embodiment, the stopper 130 is described as being installed on the fuel control shaft 120, but it is not limited thereto, and it is connected to the fuel control unit (not shown) of the governor 110 by a linkage, etc. Of course, it can be installed to perform its own function.

The fuel limiter 140 is provided below the fuel control shaft 120 on which the stopper 130 is installed, and limits the injection of fuel supplied from the fuel pump 500 to the engine 600 when the engine 600 is overloaded. The stopper 130 may be supported and fixed at a predetermined position to do so.

The fuel limiter 140 may be installed to be movable on the bracket 10 , and includes a guide part 141 , a transfer part 142 , a rotation limiting part 143 , a driving part 144 , and a sensor part 145 . may include Here, the bracket 10 on which the fuel limiter 140 is installed may be integral with the body of the engine 600 , and may be provided below the fuel control shaft 120 on which the stopper 130 is installed.

The guide unit 141 may be installed on the bracket 10 , and allows the transfer unit 142 to move back and forth.

The guide unit 141 may include a rack gear 141a installed on the bracket 10 and a pinion gear 141b installed on the transfer unit 142 , and the rack gear 141a and the pinion gear 141b. By combination, the transfer unit 142 can be moved back and forth. In this embodiment, the guide part 141 is described with the rack gear 141a and the pinion gear 141b. However, the present embodiment is not limited thereto, and a sliding rail installed in the bracket 10, a guide rail, etc., a transfer part ( Of course, 142) may be formed of various structures to be movable back and forth.

The transfer unit 142 may be installed on the guide unit 141 to be movable back and forth along the guide unit 141 by the operation of the driving unit 144 , and may transfer the rotation limiting unit 143 .

The rotation limiter 143 may be installed on the upper surface of the transfer part 142, and the stopper 130 rotated by the fuel control shaft 120 is supported and fixed at a predetermined position to limit the engine output. It may include a first rotation limiting part (143a), a second rotation limiting part (143b).

The first rotation limiting part 143a and the second rotation limiting part 143b may be provided to be spaced apart from each other by a predetermined distance.

The first rotation limiting unit 143a may be provided on one side of the upper surface of the transfer unit 142 to implement a limited power mode, and the first screw 143a1 , the first lug 143a2 , and the first lock device (143a3). Here, the limited power mode may be a mode that allows a limited engine output according to a prescribed regulation (eg, a regulation prescribed in EEXI), and always maintains the state during normal operation of the ship.

The first screw 143a1, as shown in FIGS. 4 and 5, may be installed on one side of the upper surface of the transfer unit 142, and the fuel control shaft 120 is positioned to allow limited engine output according to a prescribed regulation. When rotated to the stopper 130 may be formed in contact with the first height (h1) at which the rotation of the fuel control shaft 120 can be stopped (no more fuel oil is supplied). Here, the first height h1 may be determined according to the fuel index value of the limited engine output, and the height may vary according to the model of the engine 600 .

The first lug 143a2 may be installed on the side surface of the transfer unit 142 at a position corresponding to the first screw 143a1 .

The first key device 143a3 may be a sealing wire.

The first lock device 143a3 connects the first screw 143a1 and the first lug 143a2 to seal the first screw 143a1 installed to have a predetermined first height h1 so as not to change the height of the first screw 143a1 arbitrarily. can That is, the first key device 143a3 is to prevent a general consumer from arbitrarily increasing the power of the engine 600 after removing the seal, and the IMO's EEXI regulation for reducing excessive greenhouse gas emissions (January 1, 2023) in order to comply with some implementation).

In the present embodiment, the first rotation limiting unit 143a has been described as being composed of the first screw 143a1, the first lug 143a2, and the first key device 143a3, but it is not limited thereto and is not limited thereto. Of course, it may be formed into a structure.

The second rotation limiting unit 143b may be provided on the other side of the upper surface of the transfer unit 142 to implement a reserve power mode, and a second screw 143b1, a second lug 143b2, and a second lock device. (143b3). Here, the reserve power mode may be a mode that allows the maximum engine output of the engine 600, and is switched from the limited power mode when an emergency situation such as abnormal operation of a ship occurs until the emergency situation is released. keep

The second screw 143b1 may be installed on the other side of the upper surface of the transfer unit 142 as shown in FIGS. 6 and 7 , and the fuel control shaft 120 allows the maximum engine output of the engine 600 . When it rotates to a position where it is rotated, it may come into contact with the stopper 130 to form a second height h2 at which the rotation of the fuel control shaft 120 can be stopped. Here, the second height h2 may be determined according to the fuel index value of the maximum engine output of the engine 600 , and the height may vary depending on the model of the engine 600 . The second height h2 may be lower than the first height h1.

The second lug 143b2 may be installed on the side surface of the transfer unit 142 at a position corresponding to the second screw 143b1 .

The second locking device 143b3 may be a sealing wire.

The second locking device 143b3 connects the second screw 143b1 and the second lug 143b2 to seal the second screw 143b1 installed to have a predetermined second height h2 so as not to change the height of the second screw 143b1 arbitrarily. can

In the present embodiment, the second rotation limiting unit 143b has been described as being composed of the second screw 143b1, the second lug 143b2, and the second key device 143b3, but it is not limited thereto, and various types having a second height are not limited thereto. Of course, it may be formed into a structure.

In the present embodiment described above, the first screw 143a1 and the first lug 143a2 are connected by the first locking device 143a3, and the second screw 143b1 and the second lug are connected by the second locking device 143b3. 143b2), but as another embodiment, the first screw 143a1 and the second screw 143b1 may be directly connected as one locking device, in which case one locking device is connected to the first and second screws 143a1 , 143b1) It can be sealed to prevent arbitrarily changing the height of each.

In addition, in the present embodiment described above, the first rotation limiter 143a has been described as for the limited power mode, and the second rotation limiter 143b has been described as for the reserve power mode, but the first screw 143a1 and the Since the position of the two screws (143b1) can be changed depending on the product, the mode of the first rotation limiting part 143a and the second rotation limiting part 143b can also be changed, of course.

The driving unit 144 may move the transfer unit 142 back and forth according to the limited power mode or the reserved power mode, and in the limited power mode, the first rotation limiting unit 143a matches the stopper 130 and the reserve In the power mode, the second rotation limiter 143b may match the stopper 130 .

The driving unit 144 may be connected to one side of the conveying unit 142 to transmit power to the conveying unit 142 so that the conveying unit 142 moves back and forth, and may be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

The driving unit 144 may include a cylinder 144a, a piston 144b reciprocating inside the cylinder 144a, and a piston rod 144c connecting one side of the piston 144b and the transfer unit 142 to each other. have.

The piston rod 144c moves the conveying part 142 back and forth while performing a linear reciprocating motion. At this time, the reciprocating motion distance of the piston rod 144c is between the first rotation limiting part 143a and the second rotation limiting part 143b. may be equal to the separation distance of

The above-described driving unit 144 may be operated by itself, but may be remotely operated by the ship propulsion control system 200 and the selection switch 400 as will be described later.

The sensor unit 145 is provided in the cylinder 144a to detect the position of the piston 144b, and information about which rotation limiter among the first and second

rotation limiting parts

143a and 143b coincides with the stopper 130. It can be transmitted to the ship propulsion control system 200 to be described later and the recording device 300 to be described later, and can be composed of a first position sensor 145a and a second position sensor 145b.

The first position sensor 145a and the second position sensor 145b may be provided to be spaced apart from each other by a predetermined distance.

The first position sensor 145a may be provided on one side of the cylinder 144a, and may detect the piston 144b in a reverse state.

As shown in FIG. 4, when the piston 144b is in a reverse state, the positions of the first screw 143a1 and the stopper 130 of the first rotation limiting part 143a coincide with the first position sensor ( 145a) may transmit the current location information to the ship propulsion control system 200 and the recording device 300 .

The second position sensor 145b may be provided on the other side of the cylinder 144a, and may detect the piston 144b in the forward state.

6, when the piston (144b) is in the forward state, the positions of the second screw (143b1) and the stopper (130) of the second rotation limiting part (143b) coincide with each other, the second position sensor ( 145b) may transmit the current location information to the ship propulsion control system 200 and the recording device 300 .

The separation distance between the first position sensor 145a and the second position sensor 145b is the distance between the first rotation limiting part 143a and the second rotation limiting part 143b or the inside of the cylinder 144a. It may be the same as the reciprocating movement distance of the reciprocating piston (144b).

The ship propulsion control system 200 may be a Bridge Maneuvering System (BMS) provided on a ship.

The ship propulsion control system 200 operates the driving unit 144 of the fuel limiting unit 140 according to the operation of the selection switch 400 for selecting the limited power mode or the reserved power mode to move the transfer unit 142 back and forth. can be controlled

Here, the selection switch 400 may be installed in an easy-to-operate place such as an engine control room of a ship, a wheel house, and the like.

The limited power mode selected by the selection switch 400 is a mode that allows limited engine output according to a prescribed regulation (eg, a regulation prescribed in EEXI), and always maintains the state during normal operation of the ship, The fuel-rpm curve of the ship propulsion control system 200 is also set according to the limited engine output.

The reserve power mode selected by the selection switch 400 is a mode that allows the maximum engine output of the engine 600, and is switched from the limited power mode when an emergency situation such as abnormal operation of a ship occurs and the emergency situation is released. It is maintained until the time, and the fuel-rpm curve of the ship propulsion control system 200 is also set according to the maximum engine output.

In addition, the ship propulsion control system 200, in order to determine whether the current state of the fuel limiter 140 is normally moved according to the mode selected by the selection switch 400, the first installed on the upper portion of the transfer unit 142, Information on which of the two

rotation limiting units

143a and 143b coincides with the stopper 130 may be transmitted from the first and

second position sensors

145a and 145b installed in the driving unit 144 .

When the information indicating that the current state of the fuel limiter 140 is normally moved according to the mode selected by the selection switch 400 is transmitted from the first and

second position sensors

145a and 145b, the ship propulsion control system 200, It changes to the fuel-rpm curve set according to the reserve power mode or the limited power mode, thereby allowing the engine power adjustment system 1 to operate normally according to the selected mode.

In addition, when information indicating that the current state of the fuel limiter 140 is not normally moved according to the mode selected by the selection switch 400 is transmitted from the first and

second position sensors

145a and 145b, the ship propulsion control system 200 ) does not change to the fuel-rpm curve set for the reserve power mode or the limited power mode, and informs the crew through an alarm (not shown), etc. make it possible

The recording device 300 may receive and record information that the current state of the fuel limiter 140 is normally moved according to the mode selected by the selection switch 400 from the first and

second position sensors

145a and 145b. .

In the recording device 300 , when the fuel limiter 140 is in the limited power mode and an emergency occurs and the reserve power mode is selected by the selection switch 400 , the second rotation limiter 143b turns the stopper Information matching 130 may be transmitted from the second position sensor 145b, and engine power limit release information that is switched from the limited power mode to the reserve power mode according to the transmitted information may be automatically recorded.

In addition, in the recording device 300, when the fuel limiter 140 is in the reserve power mode, the emergency is released and the limited power mode is selected by the selection switch 400, the first rotation limiter 143a) may receive information matching the stopper 130 from the first position sensor 145a, and automatically record engine power limit restoration information converted from the reserve power mode to the limited power mode according to the transmitted information.

The above-described recording device 300 may be a data logger, and information recorded in the recording device 300 may be monitored by a user.

Through this, in this embodiment, the engine power limitation release information or engine power limitation restoration information is automatically recorded in the recording device 300, so that there is no need to separately prepare evidence that the restoration has been mandatory to be submitted to the administration. , it is possible to rule out the possibility of data manipulation by handwritten records in the OMM.

The fuel pump 500 may supply fuel to the engine 600 .

The fuel pump 500 is connected to the governor 110 of the engine output limiting device 100 by a fuel control shaft 120 , and the overall fuel according to the rotation speed and load of the engine 600 by the governor 110 . The injection amount can be controlled.

In addition, the fuel pump 500 is provided separately from the governor 110 by the stopper 130 directly installed on the fuel control shaft 120 and the first and second

rotation limiting parts

143a and 143b of the fuel limiting part 140 . In order to limit the engine output, the fuel injection amount supplied to the engine 600 may be limited.

As such, the engine power adjustment system 1 of the present embodiment includes a first rotation limiting unit 143a positioned to match the stopper in the limited power mode and allowing limited engine output according to a prescribed regulation, and in the reserve power mode By providing the second rotation limiter 143b positioned to match the stopper 130 and allowing the maximum engine output of the engine 600 to the remotely movable fuel limiter 140, during the operation of the ship, an emergency In such a situation, it is possible to cope with an emergency of the vessel by releasing the engine power limit by switching to the reserve power mode. It can operate the vessel safely in any situation.

In addition, the engine output adjustment system 1 of this embodiment can automatically switch between the limited power mode and the reserve power mode to the position movement of the first and second

rotation limiting units

143a and 143b, and the first and second rotation limiting There is no need to unnecessarily cut the first and second lock devices 143a3 and 143b3 installed in the

parts

143a and 143b, and after the mode is switched, the height of the first and

second rotation limiters

143a and 143b is adjusted as before. There is no need for the seafarer to do it himself.

In addition, the engine output adjustment system 1 of this embodiment, according to the position where each of the first and second

rotation limiting units

143a and 143b coincides with the stopper 130, in an emergency, from the limited power mode to the reserve power mode It is mandatory to submit to the administration by configuring not only the converted engine power limit release information, but also the engine power limit restoration information converted from the reserve power mode to the limited power mode when an emergency is released in the recording device 300 automatically. There is no need to separately prepare evidence of restoration that needs to be done, and the possibility of data manipulation by handwritten records in OMM can be ruled out, and users can easily monitor from the ship.

In the above, the present invention has been described focusing on the embodiments of the present invention, but this is only an example and does not limit the present invention. It will be appreciated that various combinations or modifications and applications not illustrated in the embodiments are possible within the scope. Accordingly, descriptions related to variations and applications that can be easily derived from the embodiments of the present invention should be interpreted as being included in the present invention.

[Explanation of code]

1: engine power adjustment system 10: bracket

100: engine power limiter 110: governor

120: fuel control shaft 130: stopper

140: fuel restriction unit 141: guide unit

141a: rack gear 141b: pinion gear

142: transfer unit 143: rotation limiting unit

143a: first rotation limiting part 143a1: first screw

143a2: first lug 143a3: first key device

143b: second rotation limiting part 143b1: second screw

143b2: second lug 143b3: second key device

144: driving unit 144a: cylinder

144b: piston 144c: piston rod

145: sensor unit 145a: first position sensor

200: ship propulsion control system 300: recording device

400: select switch 500: fuel pump

600: engine

h1: first height h2: second height

Claims

An engine output control system comprising an engine output limiting device for limiting a fuel injection amount of a fuel pump that supplies fuel to the engine,

The engine power limiting device,

a governor connected to the fuel pump and the fuel control shaft to control the overall fuel injection amount according to the rotation speed and load of the engine; and

and a fuel limiter for supporting and fixing a stopper directly installed on the fuel control shaft at a predetermined position to limit the fuel injection amount when the engine is overloaded,

The fuel limiting unit,

a guide part installed below the fuel control shaft on which the stopper is installed;

a transfer unit installed on the guide unit to move back and forth along the guide unit;

a first rotation limiter provided on one side of the upper surface of the transfer part and implementing a limited power mode that allows a limited engine output according to a prescribed regulation;

a second rotation limiting unit provided on the other side of the upper surface of the transfer unit and implementing a reserve power mode that allows the maximum engine output of the engine; and

By moving the transfer unit back and forth according to the limited power mode or the reserved power mode, the first rotation limiting part coincides with the stopper in the limited power mode, and the second rotation limiting part is the An engine power adjustment system including a drive unit to match the stopper.
According to claim 1, wherein the guide portion,

a rack gear installed on a bracket integral with the body of the engine; and

It includes a pinion gear installed in the transfer unit,

An engine power adjustment system that enables the transfer unit to move forward and backward by a combination of the rack gear and the pinion gear.
According to claim 1, wherein the guide portion,

An engine power adjustment system which is a sliding rail installed on a bracket integral with the body of the engine.
According to claim 1, wherein the first rotation limiting unit,

It is installed on one side of the upper surface of the transfer unit, and when the fuel control shaft rotates to a position that allows limited engine output according to a predetermined regulation, it comes into contact with the stopper and is formed at a first height at which the rotation of the fuel control shaft is stopped. 1 screw; and

and a first lug installed on the side of the transfer unit at a position corresponding to the first screw,

The second rotation limiting unit,

It is installed on the other side of the upper surface of the transfer unit, and when the fuel control shaft rotates to a position that allows the maximum engine output of the engine, it comes into contact with the stopper and is formed at a second height at which the rotation of the fuel control shaft is stopped. 2 screws; and

and a second lug installed on the side of the transfer unit at a position corresponding to the second screw.
According to claim 4, The first height of the first screw,

It is set according to the fuel index value of the limited engine power,

a second height of the second screw,

An engine power adjustment system determined according to a fuel index value of the maximum engine output of the engine.
5. The method of claim 4, wherein the first rotation limiting unit and the second rotation limiting unit,

a locking device for sealing the height of the first screw and the second screw from being changed arbitrarily,

The locking device is

By connecting the first screw and the first lug to prevent arbitrarily changing the height of the first screw, or

By connecting the second screw and the second lug to prevent arbitrarily changing the height of the second screw, or

An engine output adjustment system for connecting the first screw and the second screw to prevent arbitrarily changing the height of each of the first screw and the second screw.
According to claim 1, wherein the driving unit,

cylinder;

a piston reciprocating inside the cylinder; and

and a piston rod connecting one side of the piston and the transfer part,

The piston rod is

An engine power adjustment system in which a reciprocating motion distance for moving the transfer unit back and forth is the same as the separation distance between the first rotation limiting part and the second rotation limiting part.
8. The method of claim 7,

Further comprising a sensor unit for detecting which rotation limiting part of the first and second rotation limiting part coincides with the stopper,

The sensor unit,

a first position sensor provided on one side of the cylinder and sensing the piston in a reversed state; and

It is provided on the other side of the cylinder and includes a second position sensor for detecting the piston in an advanced state,

The separation distance between the first position sensor and the second position sensor,

An engine power adjustment system equal to the separation distance between the first rotation limiting part and the second rotation limiting part or the reciprocating motion distance of the piston.
9. The method of claim 8,

The engine output control system further comprising a ship propulsion control system for controlling the forward and backward movement of the transfer unit by operating the driving unit according to the operation of a selection switch for selecting the limited power mode or the reserve power mode.
10. The method of claim 9, wherein the ship propulsion control system,

In order to determine whether the current state of the fuel limiting part is normally moved according to the mode selected by the selection switch, information on which rotation limiting part among the first and second rotation limiting parts coincides with the stopper is transmitted to the first and second received from the position sensor,

When information indicating that the current state of the fuel limiter is normally moved according to the mode selected by the selection switch is transmitted from the first and second position sensors, the fuel-revolution curve set according to the reserve power mode or the limited power mode change it to

When information indicating that the current state of the fuel limiter is not normally moved according to the mode selected by the selection switch is transmitted from the first and second position sensors, the fuel-revolution speed set according to the reserve power mode or the limited power mode An engine power adjustment system that notifies the crew through an alarm without changing to a curve.
9. The method of claim 8,

The engine further comprising a recording device for receiving and recording information that the current state of the fuel restriction unit is normally moved according to a mode selected by a selection switch for selecting the limited power mode or the reserved power mode from the first and second position sensors output control system.
12. The method of claim 11, wherein the recording device,

When the fuel limiter is in the limited power mode and an emergency occurs and the reserve power mode is selected by the selection switch, the second rotation limiter transmits information matching the stopper from the second position sensor Automatically records engine power limit release information that is converted from the limited power mode to the reserve power mode according to the received and transmitted information,

When the fuel limiter is in the reserve power mode and the emergency is released and the limited power mode is selected by the selection switch, the first rotation limiter transmits information matching the stopper from the first position sensor Engine power adjustment system for automatically recording engine power limit restoration information that is converted from the reserve power mode to the limited power mode according to the received and transmitted information.
A ship characterized in that the engine power adjustment system according to claim 1 is provided.