CN201865778U - Electric control system of dual-fuel engine of diesel oil/liquefied petroleum gas ship - Google Patents
Electric control system of dual-fuel engine of diesel oil/liquefied petroleum gas ship Download PDFInfo
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- CN201865778U CN201865778U CN2010206301546U CN201020630154U CN201865778U CN 201865778 U CN201865778 U CN 201865778U CN 2010206301546 U CN2010206301546 U CN 2010206301546U CN 201020630154 U CN201020630154 U CN 201020630154U CN 201865778 U CN201865778 U CN 201865778U
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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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
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Abstract
The utility model discloses an electric control system of a dual-fuel engine of a diesel oil/liquefied petroleum gas ship, which is mainly designed for overcoming the defects of high energy consumption, serious pollution, lag in technologies, poor performance and the like in a traditional diesel engine of a transport ship. The electric control system of the dual-fuel engine of the diesel oil/liquefied petroleum gas ship comprises a diesel oil supplying system, a liquefied petroleum gas supplying system, an electronic control unit, a monitoring system, a master control valve and a safety monitoring system, wherein the diesel oil supplying system receives a control instruction output by the electronic control unit and outputs diesel oil with the corresponding quantity according to the instruction; the liquefied petroleum gas supplying system receives a control instruction output by the electronic control unit and outputs petroleum gas with the corresponding quantity according to the instruction; the electronic control unit receives signals output by the monitoring system and the safety monitoring system and outputs the control instructions to the diesel oil supplying system, the liquefied petroleum gas supplying system and the master control valve according to the signals; the monitoring system monitors the working condition of the engine at real time; the master control valve switches on or switches off a diesel oil supplying oil passage and/or a liquefied petroleum gas supplying gas passage according to a control instruction output by the electronic control unit; and the safety monitoring system monitors whether the leakage of fuel gas exists in the engine or not at real time.
Description
Technical field
The utility model relates to double fuel engine of boat and ship electronic control technology field, relates in particular to a kind of diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system.
Background technique
Along with global energy consumption increases rapidly, pollution of atmosphere and greenhouse gas emission have been caused for human living environment and have a strong impact on.Various countries realize that to motor the innoxious requirement of discharging is strong day by day at present.Complete technical standard and rules system have been formulated in domestic fuel energy consumption and pollutant emission to Motor Vehicle, and landlocked rivers ships that transport lacks such supervisory system, a large amount of pollutants and greenhouse gases severe contamination rivers and lakes waters and the urban environment along the line that make the generation of inland transportation boats and ships.
In addition, the oil supply system of China's rivers high-power (more than the 300KW) ships that transport motor is realized by mechanical mechanism, promptly come the diesel oil fuel injection quantity in each cylinder is controlled by restriction oil pump throttle position, the degrees of freedom of its control is little, precision is low, and this has had a strong impact on the effects of energy saving and emission reduction of engine of boat and ship.
Liquefied petroleum gas (LPG) (LPG) is universally acknowledged clean energy resource, and it is widely used in automobile, gas, and fields such as industrial production, and the application on boats and ships does not cause people's attention.
The model utility content
At the problems referred to above, the utility model provides a kind of diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system, to overcome shortcomings such as present ships that transport diesel engine energy consumption height, seriously polluted, backward in technique, poor performance.
For achieving the above object, the utility model diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system comprises: diesel oil supply system, liquefied petroleum gas (LPG) supply system, electronic control unit, monitoring system and master control valve; Wherein,
Described diesel oil supply system receives the control command of described electronic control unit output, and exports the diesel oil of respective amount according to control command;
Described liquefied petroleum gas (LPG) supply system receives the control command of described electronic control unit output, and exports the petroleum gas of respective amount according to control command;
Described electronic control unit receives the Monitoring Data of described monitoring system output, and exports control command according to this Monitoring Data and give described diesel oil supply system, described liquefied petroleum gas (LPG) supply system and described master control valve;
Described monitoring system is arranged in the described motor, monitors the working condition of motor in real time and exports Monitoring Data;
Described master control valve, be arranged on the fuel output terminal of described diesel oil supply system and liquefied petroleum gas (LPG) supply system, receive the control command of described electronic control unit output, and open or disconnect the supply gas circuit of the supply oil circuit and/or the described liquefied petroleum gas (LPG) supply system of described diesel oil supply system according to control command.
Further, for guaranteeing the safe operation of motor, described diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system also comprises a safety monitoring system, and described safety monitoring system is made of at least one gas leakage prober and alarm; Wherein,
Described gas leakage prober is arranged in the motor, as engine nacelle, liquefied petroleum gas storage tank and gas combustion apparatus and valve cluster place, monitors the petroleum gas leakage situation of described motor in real time;
Alarm receives the monitor signal that described gas leakage prober is exported, and gives described electronic control unit according to the monitor signal output alarm signal.
Wherein, described diesel oil supply system comprises: the diesel oil controller and the diesel oil high-pressure service pump of diesel oil tank, control diesel oil fuel injection quantity; The control signal input end of described diesel oil controller links to each other with the diesel oil output quantity control command output terminal of described electronic control unit, the diesel oil output terminal of described diesel oil tank links to each other with the low oil pressure end of described diesel oil high-pressure service pump through described diesel oil controller, and the high pressure oil end of described diesel oil high-pressure service pump is communicated with the cylinder of described motor.
Described liquefied petroleum gas (LPG) supply system comprises: liquefied petroleum gas storage tank, liquefied petroleum gas (LPG) high-pressure solenoid valve, evaporator and pressure reducer, filter, liquefied petroleum gas (LPG) low-voltage solenoid valve, knock out drum, liquefied petroleum gas injection valve, mixer, empty filter and turbosupercharger; Wherein,
Described liquefied petroleum gas storage tank, described liquefied petroleum gas (LPG) high-pressure solenoid valve, described evaporator and pressure reducer, described filter, described liquefied petroleum gas (LPG) low-voltage solenoid valve, described knock out drum and described liquefied petroleum gas injection valve join end to end successively;
The fuel gas injection end of described liquefied petroleum gas injection valve is connected with the combustion gas input end of described mixer;
The inlet end of described empty filter is connected with atmosphere, and the gas output end of described empty filter links to each other with the low-pressure gas input end of described turbosupercharger, and the pressurized gas output terminal of described turbosupercharger is connected with the air input end of described mixer;
The inflammable mixture output terminal of described mixer is connected with the cylinder of described motor;
The control signal input end of described liquefied petroleum gas (LPG) high-pressure solenoid valve, described liquefied petroleum gas (LPG) low-voltage solenoid valve and described liquefied petroleum gas injection valve is connected with the control signal output terminal of described electronic control unit respectively.
Described monitoring system comprises: air temperature pressure transducer, lambda sensor, cooling-water temperature sensor, tachometer generator, oil pressure sensor, exhaust gas temperature sensor, throttle position switch, fuel gas temperature sensor and gaseous-pressure sensor.
The utility model has carried out improving design to the Fuel Control System and the air intake control system of original marine diesel motor, installed a cover liquefied petroleum gas (LPG) supply system and an electronic control unit additional, make diesel oil liquefied petroleum gas (LPG) double fuel engine of boat and ship can use two kinds of fuel combinations of diesel oil/liquefied petroleum gas (LPG) to mix burning, also can recover to use pure diesel oil mode of operation.When motor moved with double fuel, diesel oil was as pilot fuel, and liquefied petroleum gas (LPG) is as main fuel.
The utlity model has following some beneficial effect:
(1) electronic control unit of the present utility model carries out in good time, intelligent electronic control to diesel pilot amount and liquefied petroleum gas (LPG) delivery volume, make two kinds of fuel under the different operating conditionss of boats and ships, obtain suitable coupling, make duel fuel engine have good power performance, Economy and emission performance preferably.
When (2) the utility model adopted the double fuel operation, diesel oil was as pilot fuel, and liquefied petroleum gas (LPG) is a main fuel, and the comprehensive substitution rate of petroleum gas can reach more than 70%.Improved duel fuel engine has not only kept the power performance of former diesel engine, also reduce fuel cost (fuel saving is taken more than 20%), reduced the discharging (particulate matter soot minimizing 80%, nitrogen oxide 40%, carbon dioxide can reduce more than 16%) of pollutant and greenhouse gases.
(3) enforcement of the present utility model will be opened the beginning of Chinese landlocked rivers and lakes waters development low-carbon economy, will make major contribution for national energy-saving and emission-reduction policy.
Description of drawings
Fig. 1 is the structural representation of diesel oil described in the utility model/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system;
Fig. 2 is the fuel supply flow process figure of diesel oil supply system described in the utility model and liquefied petroleum gas (LPG) supply system.
Embodiment
Below in conjunction with Figure of description embodiment of the present utility model is done detailed description.
As shown in Figure 1, the utility model diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system is characterized in that diesel oil supply system 1, liquefied petroleum gas (LPG) supply system 2, electronic control unit 3, monitoring system 4 and master control valve 5; Wherein,
Described diesel oil supply system 1 receives the control command of described electronic control unit 3 outputs, and exports the diesel oil of respective amount according to control command;
Described liquefied petroleum gas (LPG) supply system 2 receives the control command of described electronic control unit 3 outputs, and exports the petroleum gas of respective amount according to control command;
Described electronic control unit 3 receives the Monitoring Data of described monitoring system output, and exports control command according to this Monitoring Data and give described diesel oil supply system 1, described liquefied petroleum gas (LPG) supply system 2 and described master control valve 5;
Described monitoring system 4 is arranged in the described motor, monitors the working condition of motor in real time and exports Monitoring Data;
Described master control valve 5, be arranged on the fuel output terminal of described diesel oil supply system 1 and liquefied petroleum gas (LPG) supply system 2, can be arranged on the output terminal of the liquefied petroleum gas storage tank of the output terminal of diesel fuel tanks of described diesel oil supply system 1 and described liquefied petroleum gas (LPG) supply system 2 as shown in FIG., receive the control command of described electronic control unit 3 outputs, and open or disconnect the supply gas circuit of the supply oil circuit and/or the described liquefied petroleum gas (LPG) supply system 2 of described diesel oil supply system 1 according to control command.
Further improve as the utility model, also comprise a safety monitoring system 6, at least one is made of described safety monitoring system 6 gas leakage prober and alarm; Wherein, described gas leakage prober is arranged in the motor, as engine nacelle, liquefied petroleum gas storage tank and other gas combustion apparatus and valve cluster place, monitors the gas leakage situation of described motor in real time; Described alarm receives the monitor signal that described gas leakage prober is exported, and gives described electronic control unit according to the monitor signal output alarm signal; After described electronic control unit 3 receives this alarm signal, the output control command is given described master control valve 5, described master control valve 5 disconnects the supply gas circuit of described liquefied petroleum gas (LPG) supply system according to this control command, after treating that leakage situation is removed, described electronic control unit 3 output control commands open the supply gas circuit of described liquefied petroleum gas (LPG) supply system for described master control valve 5, and motor is under the double fuel mode of operation.Like this, can guarantee that engine health moves normally.
Wherein, described diesel oil supply system 1 comprises: the diesel oil controller and the diesel oil high-pressure service pump of diesel oil tank, control diesel oil fuel injection quantity; The control signal input end of described diesel oil controller links to each other with the diesel oil output quantity control command output terminal of described electronic control unit, the diesel oil output terminal of described diesel oil tank links to each other with the low oil pressure end of described diesel oil high-pressure service pump through described diesel oil controller, and the high pressure oil end of described diesel oil high-pressure service pump is communicated with the cylinder of described motor.
Described liquefied petroleum gas (LPG) supply system 2 comprises: liquefied petroleum gas storage tank, liquefied petroleum gas (LPG) high-pressure solenoid valve, evaporator and pressure reducer, filter, liquefied petroleum gas (LPG) low-voltage solenoid valve, knock out drum, liquefied petroleum gas injection valve, mixer, empty filter and turbosupercharger; Wherein,
Described liquefied petroleum gas storage tank, described liquefied petroleum gas (LPG) high-pressure solenoid valve, described evaporator and pressure reducer, described filter, described liquefied petroleum gas (LPG) low-voltage solenoid valve, described knock out drum and described liquefied petroleum gas injection valve join end to end successively;
The fuel gas injection end of described liquefied petroleum gas injection valve is connected with the combustion gas input end of described mixer;
The inlet end of described empty filter is connected with atmosphere, and the gas output end of described empty filter links to each other with the low-pressure gas input end of described turbosupercharger, and the pressurized gas output terminal of described turbosupercharger is connected with the air input end of described mixer;
The inflammable mixture output terminal of described mixer is connected with the cylinder of described motor;
The control signal input end of described liquefied petroleum gas (LPG) high-pressure solenoid valve, described liquefied petroleum gas (LPG) low-voltage solenoid valve and described liquefied petroleum gas injection valve is connected with the control signal output terminal of described electronic control unit respectively.
Electronic control unit (ECU) 3, the signal input part of ECU is connected with monitoring system 4 and safety monitoring system 6 as shown in Figure 1; The control command output terminal is connected with liquefied petroleum gas (LPG) high-pressure solenoid valve, liquefied petroleum gas (LPG) low-voltage solenoid valve and liquefied petroleum gas injection valve and the master control valve 5 of the diesel oil controller of described diesel oil supply system 1, described liquefied petroleum gas (LPG) supply system 2.Electronic control unit 3 can be exported control command by liquefied petroleum gas (LPG) high-pressure solenoid valve, liquefied petroleum gas (LPG) low-voltage solenoid valve and the liquefied petroleum gas injection valve of the diesel oil controller of giving described diesel oil supply system 1, described liquefied petroleum gas (LPG) supply system 2 and realize the delivery volume of diesel oil and liquefied petroleum gas (LPG) is accurately controlled according to the every data in the described monitoring system 4 real-time monitoring engine working processes; By realizing the switching of pure diesel fuel mode of motor or double fuel mode of operation for described master control valve 5 output control commands.The control signal of each signal of communication of the described electronic control unit of " → " expression input and the output of described electronic control unit among Fig. 1;
The flow direction of expression diesel oil and liquefied petroleum gas (LPG).
Described monitoring system 4 comprises: air temperature pressure transducer, lambda sensor, cooling-water temperature sensor, tachometer generator, oil pressure sensor, exhaust gas temperature sensor, throttle position switch, fuel gas temperature sensor and gaseous-pressure sensor; These signal of sensor are transported in the electronic control unit 3; Wherein,
Air pressure temperature transducer and lambda sensor are arranged on the pressurized gas output terminal of described turbosupercharger, in order to measure the suction pressure of motor, the content of oxygen in temperature and the air; Electronic control unit 3 can be according to suction pressure, the suitable operating mode of temperature and oxygen content is revised the suction pressure and the air inflow of motor, make motor under any environment and load, can both reach rational air fuel ratio, effectively reduce the generation of nitrogen oxide, reduce exhaust gas discharging;
Cooling-water temperature sensor is used to measure the temperature of engine cooling circulating water;
Tachometer generator is measured the engine crankshaft revolution, and when the crankshaft revolution that monitors motor when tachometer generator reached default revolution, described electronic control unit 3 was converted to dual fuel with motor automatically according to the revolution signal of tachometer generator output;
Oil pressure sensor, the measuring machine oil pressure;
Exhaust gas temperature sensor, by the temperature of real-time monitoring engine exhaust, the working state of monitoring motor is avoided engine overheat or is burnt cylinder;
Throttle position switch, the diesel oil output terminal that is arranged on the diesel oil controller in the described diesel oil supply system is used to monitor the diesel oil supply of described motor;
Gaseous-pressure sensor and fuel gas temperature sensor are used to monitor the state of supply of petroleum gas, guarantee the emitted dose of petroleum gas;
Above these sensor signals are input to electronic control unit 3; Electronic control unit 3 carries out software according to the sensor signal of input to be handled, the output control command of electronic control unit 3 is transported to the diesel oil controller of diesel oil supply system respectively, the liquefied petroleum gas (LPG) high-pressure solenoid valve of liquefied petroleum gas (LPG) supply system, liquefied petroleum gas (LPG) low-voltage solenoid valve and liquefied petroleum gas injection valve are used to realize the delivery volume of diesel oil and petroleum gas is accurately controlled and the switching of diesel oil or double fuel mode of operation.Wherein, the jet pressure of liquefied petroleum gas injection valve is made as 0.1Mpa, and these parts are critical components of liquefied petroleum gas (LPG) supply system, is used for metering, in time LPG is sprayed into engine agitator.
As shown in Figure 2, the fuel supply flow process figure of diesel oil described in the utility model/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system diesel oil supply system and liquefied petroleum gas (LPG) supply system, its detailed process is described below:
Adopt pure diesel oil work, electronic control unit output control command described in the utility model cuts off the supply gas circuit of petroleum gas for described master control valve.Diesel oil is spurted into the engine air in-cylinder combustion from diesel oil tank through diesel oil controller and diesel oil high-pressure service pump and is externally done work.
The work of employing double fuel, when initial, described motor uses diesel fuel mode; After the crankshaft revolution of motor reached predetermined number of revolutions, electronic control unit can be exported control signal and give described master control valve, and the operating mode of motor is converted to dual fuel.Liquefied petroleum gas in the liquefied petroleum gas storage tank in the liquefied petroleum gas (LPG) supply system enters into evaporator and pressure reducer by a jar internal pressure 1.6Mpa by the liquefied petroleum gas (LPG) high-pressure solenoid valve at this moment; In described evaporator and pressure reducer, the circulating water in liquefied petroleum gas (LPG) and the motor carries out heat exchange, and is vaporized into the LPG of gaseous state, and its pressure is reduced as 0.1Mpa; Then, the petroleum gas after the vaporization carries out filtering and impurity removing through filter, enters knock out drum by the liquefied petroleum gas (LPG) low-voltage solenoid valve again, and the LPG of gaseous state voltage stabilizing in knock out drum stores; At last, after the liquefied petroleum gas injection valve receives the injection control command of electronic control unit, LPG is injected in the mixer cylinder that is input to motor behind the mixed gas that becomes flammable with air mixing in it, the diesel oil ignited acting that sprays into by the diesel oil high-pressure service pump of diesel oil supply system.
Diesel oil described in the utility model/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system, be definite boats and ships performance load foundation with the engine oil door position signal, simultaneously according to engine revolution, the engine charge pressure and temp, delivery temperature, circulating water temperature, oxygen content, parameters such as engine oil pressure are by controlling the hydraulic petroleum gas high-pressure solenoid valve of described hydraulic fluid liquefied oil gas supply system, the diesel oil controller of hydraulic petroleum gas low-voltage solenoid valve and petroleum gas injection device and diesel oil supply system is realized the accurate control to the emitted dose of the input quantity of diesel oil and petroleum gas.
In the process of motor operation, when safety monitoring system has monitored the petroleum gas leakage, the gas leakage prober is reported to the police leakage information automatically by alarm, the control command of electronic control unit output is simultaneously given described master control valve, cut off the gas circuit of petroleum gas, and be automatically converted to the diesel oil operating mode, make normal working of engine.After the leakage situation was got rid of, described master control valve was opened liquefied petroleum gas (LPG) and is supplied with gas circuit under the control of described electronic control unit, and motor can be under the dual fuel at this moment and move.
The utility model is ejected in the mixer via the liquefied petroleum gas injection valve by the liquefied petroleum gas (LPG) with gaseous state, with the air mixing in the mixer, forming inflammable mixture is injected in the cylinder of motor, the diesel oil ignited acting that sprays into by the diesel oil high-pressure service pump of diesel oil supply system, realized the double fuel running of existing ship motor, effectively reduce pollution, reached the purpose of energy-saving and emission-reduction.Simultaneously, the utility model also can be according to the difference of boats and ships waters operating loading, the delivery volume of the strict restriction of electronic control unit diesel oil, and accurately spray into petroleum gas timely and appropriately by the liquefied petroleum gas injection valve, engine load is big more, the oil tolerance of ejection is also many more, and under maximum load, the comprehensive substitution rate of petroleum gas can reach 70%.The utility model adopt described electronics to the delivery volume of the delivery volume of diesel pilot and liquefied petroleum gas (LPG) main fuel carry out accurately, in good time, control flexibly, to satisfy power character, Economy and the emission performance of boats and ships duel fuel engine operation under solid water territory operating mode not.
More than; it only is preferred embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (5)
1. diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system is characterized in that, comprising: diesel oil supply system, liquefied petroleum gas (LPG) supply system, electronic control unit, monitoring system and master control valve; Wherein,
Described diesel oil supply system receives the control command of described electronic control unit output, and exports the diesel oil of respective amount according to control command;
Described liquefied petroleum gas (LPG) supply system receives the control command of described electronic control unit output, and exports the petroleum gas of respective amount according to control command;
Described electronic control unit receives the Monitoring Data of described monitoring system output, and exports control command according to this Monitoring Data and give described diesel oil supply system, described liquefied petroleum gas (LPG) supply system and described master control valve;
Described monitoring system is arranged in the described motor, monitors the working condition of motor in real time and exports Monitoring Data;
Described master control valve, be arranged on the fuel output terminal of described diesel oil supply system and liquefied petroleum gas (LPG) supply system, receive the control command of described electronic control unit output, and open or disconnect the supply gas circuit of the supply oil circuit and/or the described liquefied petroleum gas (LPG) supply system of described diesel oil supply system according to control command.
2. according to the described diesel oil of claim 1/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system, it is characterized in that, described diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system also comprises a safety monitoring system, and described safety monitoring system is made of at least one gas leakage prober and alarm; Wherein,
Described gas leakage prober is arranged in the motor, monitors the petroleum gas leakage situation of described motor in real time and exports monitor signal;
Alarm receives the monitor signal that described gas leakage prober is exported, and gives described electronic control unit according to the monitor signal output alarm signal.
3. according to claim 1 or 2 described diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system, it is characterized in that described diesel oil supply system comprises: the diesel oil controller and the diesel oil high-pressure service pump of diesel oil tank, control diesel oil fuel injection quantity; The control signal input end of described diesel oil controller links to each other with the diesel oil output quantity control command output terminal of described electronic control unit, the diesel oil output terminal of described diesel oil tank links to each other with the low oil pressure end of described diesel oil high-pressure service pump through described diesel oil controller, and the high pressure oil end of described diesel oil high-pressure service pump is communicated with the cylinder of described motor.
4. according to claim 1 or 2 described diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system, it is characterized in that described liquefied petroleum gas (LPG) supply system comprises: liquefied petroleum gas storage tank, liquefied petroleum gas (LPG) high-pressure solenoid valve, evaporator and pressure reducer, filter, liquefied petroleum gas (LPG) low-voltage solenoid valve, knock out drum, liquefied petroleum gas injection valve, mixer, empty filter and turbosupercharger; Wherein,
Described liquefied petroleum gas storage tank, described liquefied petroleum gas (LPG) high-pressure solenoid valve, described evaporator and pressure reducer, described filter, described liquefied petroleum gas (LPG) low-voltage solenoid valve, described knock out drum and described liquefied petroleum gas injection valve join end to end successively;
The fuel gas injection end of described liquefied petroleum gas injection valve is connected with the combustion gas input end of described mixer;
The inlet end of described empty filter is connected with atmosphere, and the gas output end of described empty filter links to each other with the low-pressure gas input end of described turbosupercharger, and the pressurized gas output terminal of described turbosupercharger is connected with the air input end of described mixer;
The inflammable mixture output terminal of described mixer is connected with the cylinder of described motor;
The control signal input end of described liquefied petroleum gas (LPG) high-pressure solenoid valve, described liquefied petroleum gas (LPG) low-voltage solenoid valve and described liquefied petroleum gas injection valve is connected with the control signal output terminal of described electronic control unit respectively.
5. according to claim 1 or 2 described diesel oil/liquefied petroleum gas (LPG) boats and ships duel fuel engine automatical control system, it is characterized in that described monitoring system comprises: air temperature pressure transducer, lambda sensor, cooling-water temperature sensor, tachometer generator, oil pressure sensor, exhaust gas temperature sensor, throttle position switch, fuel gas temperature sensor and gaseous-pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206301546U CN201865778U (en) | 2010-11-29 | 2010-11-29 | Electric control system of dual-fuel engine of diesel oil/liquefied petroleum gas ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206301546U CN201865778U (en) | 2010-11-29 | 2010-11-29 | Electric control system of dual-fuel engine of diesel oil/liquefied petroleum gas ship |
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| CN201865778U true CN201865778U (en) | 2011-06-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787921A (en) * | 2012-07-25 | 2012-11-21 | 周继光 | Mixed combustion engine electric control system and control method thereof |
| CN103790719A (en) * | 2014-03-04 | 2014-05-14 | 武汉理工大学 | Ship energy efficiency improving control system and control method |
| CN105121275A (en) * | 2012-11-12 | 2015-12-02 | 托奇多有限责任公司 | Boat with high-voltage system |
| CN111852705A (en) * | 2019-04-24 | 2020-10-30 | 日本发动机股份有限公司 | Diesel engine for ship |
-
2010
- 2010-11-29 CN CN2010206301546U patent/CN201865778U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787921A (en) * | 2012-07-25 | 2012-11-21 | 周继光 | Mixed combustion engine electric control system and control method thereof |
| CN105121275A (en) * | 2012-11-12 | 2015-12-02 | 托奇多有限责任公司 | Boat with high-voltage system |
| US9718526B2 (en) | 2012-11-12 | 2017-08-01 | Torqeedo Gmbh | Boat with high-voltage system |
| CN103790719A (en) * | 2014-03-04 | 2014-05-14 | 武汉理工大学 | Ship energy efficiency improving control system and control method |
| CN103790719B (en) * | 2014-03-04 | 2016-03-30 | 武汉理工大学 | Boats and ships efficiency Lifting Control System and controlling method |
| CN111852705A (en) * | 2019-04-24 | 2020-10-30 | 日本发动机股份有限公司 | Diesel engine for ship |
| CN111852705B (en) * | 2019-04-24 | 2022-02-08 | 日本发动机股份有限公司 | Diesel engine for ship |
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