KR101932292B1 - Auto engine stop system for engine of ship - Google Patents

Auto engine stop system for engine of ship Download PDF

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Publication number
KR101932292B1
KR101932292B1 KR1020130123771A KR20130123771A KR101932292B1 KR 101932292 B1 KR101932292 B1 KR 101932292B1 KR 1020130123771 A KR1020130123771 A KR 1020130123771A KR 20130123771 A KR20130123771 A KR 20130123771A KR 101932292 B1 KR101932292 B1 KR 101932292B1
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KR
South Korea
Prior art keywords
engine
air
stop
emergency
fuel
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KR1020130123771A
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Korean (ko)
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KR20150044568A (en
Inventor
노현민
윤태용
박종국
표준호
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현대중공업 주식회사
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Priority to KR1020130123771A priority Critical patent/KR101932292B1/en
Publication of KR20150044568A publication Critical patent/KR20150044568A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

The present invention relates to an automatic engine stop system for a marine engine and includes first and second controllers (20, 30) connected to an engine (10) for controlling the speed of the engine (10) An emergency stop valve 50 in an air standby state connected to the main air compressor precursor 40 to shut off fuel to the engine in an emergency, An air stop cylinder 60 for stopping the engine by shutting off the fuel supplied thereto and a second governor 60 for stopping the engine 10 by shutting off the fuel to the engine 10 in the event of an emergency, And an auxiliary means for supplying compressed air to the air stop cylinder (60) when the power of the automatic engine stop system is lost.
Thus, in order to shut off the fuel to the engine in case of an emergency, the emergency stop valve connected to the main air conditioner is connected in parallel with the emergency stop valve in the air standby state to supply compressed air to the air stop cylinder When the power supplied to the engine is lost, the engine loses its control force, and it is possible to prevent occurrence of unexpected rapid acceleration, excessive output, overspeed, and component breakage And as a result, the safety of the engine can be improved.

Description

Technical Field [0001] The present invention relates to an automatic engine stop system for a ship engine,

The present invention relates to an automatic engine stop system for a marine engine, and more particularly, to an automatic engine stop system for a marine engine, which is connected in parallel with an emergency stop valve connected to a main air compressor to shut off fuel to an engine during an emergency, When the power supplied to the engine is lost, the engine loses its controllability, and unexpected rapid acceleration, excessive output, overspeed, overspeed, The present invention relates to an automatic engine stopping system for a marine engine, which can prevent an accident such as a breakage of a part from occurring.

Generally, a marine engine is provided with an automatic engine stop system for stopping the engine by shutting off fuel supply to the engine by using compressed air in an emergency.

The first and second controllers 20 and 20 are connected to the engine 10 to control the speed of the engine 10, as shown in FIG. 1, An emergency stop valve (50) controlled by the first controller (20) and connected to the main air compressor precursor (40) for shutting off fuel to the engine in an emergency, and in an air standby state; An air stop cylinder 60 for receiving compressed air from the emergency stop valve 50 to stop the engine by shutting off the fuel and an air stop cylinder 60 which is controlled by the second controller 30, And a Governor actuator (70) for stopping the engine (10).

Reference numeral 41 denotes an air supply line connected to the air stop cylinder 60 from the main air compressor precursor 40.

The prior art automatic engine stop system having such a configuration is configured such that when the first controller 20 opens the emergency stop valve 50 when the engine 10 is to be stopped in an emergency, The compressed air of the engine 10 is supplied to the air stop cylinder 60 through the air supply line 41 so that the fuel supply to the engine 10 is interrupted and consequently the engine 10 is stopped.

However, in the conventional automatic engine stop system, when the power supplied to the engine is lost, the emergency stop valve can not be operated and the control power of the engine is lost. As a result, , Excessive output, overspeed, and component damage may occur.

Korean Patent Publication No. 2013-0062331

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide an emergency stop valve connected in parallel with an emergency stop valve in an air standby state to be connected to a main aircompressor, By providing an auxiliary means for supplying compressed air to the air stop cylinder in the event of loss, the engine loses control power when the power supplied to the engine is lost, resulting in unexpected rapid acceleration, excessive output, overspeed, The present invention provides an automatic engine stop system for a marine engine that can prevent the occurrence of an overheating of the engine when the engine is stopped.

In order to achieve the above object, an automatic engine stop system for a marine engine of the present invention comprises first and second controllers connected to an engine to control the speed of the engine; An emergency stop valve controlled by the first controller and connected to the main air compressor to shut off fuel to the engine in an emergency, and in an air standby state; An air stop cylinder for receiving compressed air from the emergency stop valve and stopping the engine by shutting off the fuel; And a Governor actuator controlled by the second controller and for stopping the engine by shutting off the fuel to the engine in an emergency, the automatic engine shutdown system for a ship engine comprising: And auxiliary means for supplying compressed air to the air stop cylinder in the air standby state when the power is lost.

Further, in the automatic engine stopping system for a marine engine according to an embodiment of the present invention, the auxiliary means may include an auxiliary air supply line connecting the main air compressor and the air stop cylinder, When the power is lost in the air standby state when the power of the automatic engine stop system is maintained, compressed air of the main air compressor is supplied to the air stop cylinder to stop the engine through fuel cut- Valve. ≪ / RTI >

Further, in the automatic engine stop system for a marine engine according to an embodiment of the present invention, the auxiliary stop valve and the emergency stop valve may be arranged in a parallel structure between the main air compressor and the air stop cylinder .

Further, in the automatic engine stopping system for a marine engine according to an embodiment of the present invention, the auxiliary stop valve may be one in which the signal is received from the first controller when the power is lost in the automatic engine stop system .

As described above, the automatic engine stop system for a marine engine of the present invention is connected to an emergency stop valve in an air standby state in parallel with a main air compressor to shut off fuel to an engine in an emergency, By providing an auxiliary means for supplying compressed air to the air stop cylinder when the power of the system is lost, if the power supplied to the engine is lost, the engine loses its controllability, causing unexpected rapid acceleration, excessive output, overspeed, It is possible to prevent the occurrence of a situation such as an accident, and as a result, the safety of the engine can be improved.

1 is a schematic view showing an automatic engine stopping system for a marine engine according to the prior art.
2 is a schematic diagram showing an automatic engine stopping system for a marine engine according to an embodiment of the present invention.
3 is a schematic view showing a state in which an auxiliary stop valve is operated in an automatic engine stop system for a marine engine according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 and 3, an automatic engine stop system for a marine engine according to an embodiment of the present invention includes a first and a second controller 20 connected to an engine 10 to control the speed of the engine 10 , An emergency stop valve (50) controlled by the first controller (20) and connected to the main air conditioner (40) for shutting off fuel to the engine in an emergency state and in an air standby state, An air stop cylinder 60 which receives compressed air from the emergency stop valve 50 and stops the engine by shutting off the fuel and an air stop cylinder 60 which is controlled by the second controller 30 and supplies the fuel to the engine 10 during an emergency And a governor actuator (70) for shutting down the engine (10) by interrupting the operation of the engine (10). When the power is lost, the air stop cylinder Auxiliary number that can supply There is further provided in the configuration.

Reference numeral 41 denotes an air supply line connected to the air stop cylinder 60 from the main aircompressor 40 via the emergency stop valve 50. [

The auxiliary means includes an auxiliary air supply line 42 connecting the main aircompressor 40 and the air stop cylinder 60 and an auxiliary air supply line 42 disposed on the auxiliary air supply line 42, The compressed air of the main air compressor is supplied to the air stop cylinder 60 so as to induce the stop of the engine 10 through the fuel cutoff, And an auxiliary shut-off valve (80).

That is, the auxiliary stop valve 80 is opened when the auxiliary air supply line 42 is closed and the compressed air is supplied to the air stop cylinder 60 when the power is lost.

The auxiliary stop valve 80 and the emergency stop valve 50 are arranged in parallel between the main air compressor precursor 40 and the air stop cylinder 60.

The auxiliary stop valve 80 is operated by receiving the signal from the first controller 20 when the automatic engine stop system is powered off.

The prior art automatic engine stop system having such a configuration is configured such that when the first controller 20 opens the emergency stop valve 50 when the engine 10 is to be stopped in an emergency, The compressed air of the engine 10 is supplied to the air stop cylinder 60 through the air supply line 41 so that the fuel supply to the engine 10 is interrupted and consequently the engine 10 is stopped.

When the power supplied to the engine is lost, a power loss signal from the first controller 20 is transmitted to the auxiliary stop valve 80 instead of the operation of the emergency stop valve 50, The auxiliary stop valve 80 opens the auxiliary air supply line 42 to supply compressed air in the standby state to the air stop cylinder 60 and then supplies the compressed air to the engine 10, .

 As described above, the automatic engine stop system for a marine engine according to an embodiment of the present invention is connected in parallel with an emergency stop valve connected to a main air compressor to shut off fuel to an engine during an emergency situation and in an air standby state When the power supplied to the engine is lost, the engine loses its controllability, and unexpected sudden acceleration, over-power, overspeed, over-speed, It is possible to prevent a situation such as a breakage of parts and the like from occurring, and as a result, the safety of the engine can be improved as a result.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It should be understood that all of the techniques that can be easily changed and used by those skilled in the art are included in the technical scope of the present invention.

DESCRIPTION OF REFERENCE NUMERALS
10: engine 20: first controller
30: second controller 40: main air conditioner
41: Air supply line 42: Auxiliary air supply line
50: Emergency stop valve 60: Air stop cylinder
70: Governor Actuator 80: Auxiliary stop valve

Claims (4)

First and second controllers connected to the engine to control the speed of the engine;
An emergency stop valve controlled by the first controller and connected to the main air compressor to shut off fuel to the engine in an emergency, and in an air standby state;
An air stop cylinder for receiving compressed air from the emergency stop valve and stopping the engine by shutting off the fuel; And
A Governor actuator controlled by the second controller and for stopping the engine by shutting off fuel to the engine in an emergency;
The automatic engine stop system for a marine engine, comprising:
Further comprising auxiliary means for supplying compressed air to the air stop cylinder in the air standby state when the power of the automatic engine stop system is maintained and when the power is lost. The method according to claim 1,
Wherein said auxiliary means comprises:
An auxiliary air supply line connecting the main air compressor and the air stop cylinder; And
The main air compressor is supplied with compressed air from the main air compressor to the air stop cylinder when the power is lost while the power supply of the automatic engine stop system is maintained in the air standby state, An auxiliary stop valve for inducing a stop;
And an automatic engine stop system for a marine engine. 3. The method of claim 2,
Wherein the auxiliary stop valve and the emergency stop valve are arranged in a parallel structure between the main air compressor and the air stop cylinder. The method of claim 3,
Wherein the auxiliary stop valve is operated by receiving the signal from the first controller when the power of the automatic engine stop system is lost.






KR1020130123771A 2013-10-17 2013-10-17 Auto engine stop system for engine of ship KR101932292B1 (en)

Priority Applications (1)

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KR1020130123771A KR101932292B1 (en) 2013-10-17 2013-10-17 Auto engine stop system for engine of ship

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Application Number Priority Date Filing Date Title
KR1020130123771A KR101932292B1 (en) 2013-10-17 2013-10-17 Auto engine stop system for engine of ship

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KR20150044568A KR20150044568A (en) 2015-04-27
KR101932292B1 true KR101932292B1 (en) 2018-12-24

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180090048A (en) 2017-02-02 2018-08-10 현대중공업 주식회사 Apparatus for emergency engine stop

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732123A (en) 1986-11-04 1988-03-22 Stephen C. Ohm Safety air supply for diesel engine shutdown systems
JP2009507161A (en) 2005-10-05 2009-02-19 エムエーエヌ・ディーゼル・フィリアル・アフ・エムエーエヌ・ディーゼル・エスイー・ティスクランド Ship propulsion system
KR200454643Y1 (en) 2009-12-17 2011-07-19 주식회사 태양기전 Diesel Engine Solenoid Valves
JP2011231748A (en) 2010-04-30 2011-11-17 Nikki Co Ltd Electronic governor system and control device of the same
JP6072561B2 (en) * 2013-02-20 2017-02-01 三菱電機株式会社 Air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732123A (en) 1986-11-04 1988-03-22 Stephen C. Ohm Safety air supply for diesel engine shutdown systems
JP2009507161A (en) 2005-10-05 2009-02-19 エムエーエヌ・ディーゼル・フィリアル・アフ・エムエーエヌ・ディーゼル・エスイー・ティスクランド Ship propulsion system
KR200454643Y1 (en) 2009-12-17 2011-07-19 주식회사 태양기전 Diesel Engine Solenoid Valves
JP2011231748A (en) 2010-04-30 2011-11-17 Nikki Co Ltd Electronic governor system and control device of the same
JP6072561B2 (en) * 2013-02-20 2017-02-01 三菱電機株式会社 Air conditioning system

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