CN1506565A - Methane fuel engine with very low discharge - Google Patents
Methane fuel engine with very low discharge Download PDFInfo
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- CN1506565A CN1506565A CNA021539049A CN02153904A CN1506565A CN 1506565 A CN1506565 A CN 1506565A CN A021539049 A CNA021539049 A CN A021539049A CN 02153904 A CN02153904 A CN 02153904A CN 1506565 A CN1506565 A CN 1506565A
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- methyl alcohol
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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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- Combustion Methods Of Internal-Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The methane fuel engine with very low exhaust consists of engine, methane tank, catalytic converter with heater, and electronic control unit. The methane tank is connected to the engine via electrically controlled medium-pressure fuel oil jet unit and to the reactor in the catalytic converter via oil pump and flow rate controlling valve; the catalytic converter is connected via the pressure container to the dimethyl ether solenoid valve mounted on the manifold; the engine exhaust pipe is connected to the EGR valve and the EGR valve to the air intake pipe; and the electronic control unit has input end receiving various signals the engine outputs and output end connected to the flow rate controlling valve, dimethyl ether solenoid valve, electrically controlled methane oil jet, electrothermal plug, EGR valve and electric heater in the reactor. The present invention has the advantages of less particle exhaust, no throttle loss, high heat efficiency, less NOx exhaust and saving in petroleum resource.
Description
Affiliated field:
The invention belongs to a kind of motor, particularly a kind of is the minimum discharge methanol-fueled engine of fuel with methyl alcohol.
Background technique:
The deficient day by day and more and more strictness of automobile emission regulation along with petroleum resources, people are seeking the new combustion techniques of high-efficiency cleaning always, and substitute fuel is the effective way that solves petroleum resources crisis and internal-combustion engine pollution.The petroleum resources crisis can rise to the energy security of a country, and China became crude oil net importer from 1993, and the oil product import increases with the amplitude of ten thousand tons of annual 800-1000.China's imported crude oil was about 7,000 ten thousand tons in 2000, predicted that 47% of China's oil aggregate demand in 2010 needs import, and the supply of oil is with wretched insufficiency.China is the abundant relatively country of a coal resource, and rationally utilizing coal resource is the necessary means that solves energy problem in China's economic development.Methyl alcohol can be produced by coal and rock gas, and its velocity of combustion is fast, smokeless during burning, nonflame, and the NOx discharging is low, and methyl alcohol transports conveniently with respect to gaseous fuel, and calorific value is about half of gasoline.The coal resource in the whole world is compared with oil and is wanted big many, by present energy consumption level, can also use the centuries at least, and therefore, methyl alcohol is the most promising motor fuel.Methyl alcohol mainly adopts two kinds of combustion modes traditionally as Engine Alternative Fuel, is promptly adopting employing compression ignite mode on homogeneous ignition way and the diesel engine basis on the petrol engine basis, and the former thermal efficiency is low, and the latter discharges higher.And homogeneous charging compression and combustion (HCCI) combines the traditional compression ignition engine and the advantage of spark-ignition engine: compare with traditional compression ignition engine, HCCI is the homogeneous charge compression ignite, there is not diffusive combustion, therefore greatly reduce the discharging of particulate: compare with traditional spark-ignition engine, HCCI is a pressuring combustion ignition, do not have restriction loss, and can adopt bigger compression ratio, therefore have the higher thermal efficiency; And, HCCI is different with the burning of traditional compression ignite and spark-ignition engine, its combustion process in the entire cylinder volume simultaneously, homogeneous takes place, rather than occurs in flame front, make combustion temperature lower, thereby greatly reduce the discharging of oxynitrides (NOx).
Summary of the invention
It is fuel that purpose of the present invention just is to provide a kind of employing methyl alcohol, adopts the minimum discharge methanol-fueled engine of HCCI burning and compression ignite dual combustion mode, and this motor can reduce the discharging of motor to greatest extent and improve its thermal efficiency.
Technological scheme of the present invention is: a kind of minimum discharge methanol-fueled engine is characterized in that: be made up of motor, methanol tank, the catalytic converter that has heating equipment and electronic control unit ECU; Methanol tank is connected with motor by pressing the common rail fuel injection device in automatically controlled; Methanol tank by oil transfer pump and flow control valve be installed in engine exhaust pipe on catalytic converter in reactor be connected, catalytic converter is connected with the dimethyl ether solenoid valve that is installed in intake manifold through pressurized container; Engine exhaust pipe is connected with the EGR valve, and the EGR valve is connected with suction tude; The input end of electronic control unit receives engine operation condition parameter signal, intake temperature and pressure signal, the cooling water temperature signal of motor output, temperature and pressure signal, throttle position signal, top dead center signal, tach signal, corner signal and the detonation sensor signal of catalytic converter, and output terminal and flow control valve, dimethyl ether solenoid valve, methyl alcohol electric-controlled fuel injector, glow plug, EGR valve are connected with Electric heating appliance in the reactor.
The above-mentioned common rail fuel injection device of pressing in automatically controlled is formed by being installed on the cylinder methyl alcohol electric-controlled fuel injector, glow plug, high-pressure oil pipe and return tube; The methyl alcohol electric-controlled fuel injector is connected, is connected with methanol tank by return tube with oil transfer pump on the methanol tank by high-pressure oil pipe dress high pressure oil pump thereon.
Advantage of the present invention is: the discharging that 1, greatly reduces particulate: 2, do not have restriction loss, have the higher thermal efficiency; 3, adopt its combustion process of HCCI combustion mode while, homogeneous in the entire cylinder volume to take place, rather than occur in flame front, make combustion temperature lower, thereby greatly reduce the discharging of oxynitrides (NOx).4, can save a large amount of petroleum resources.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 is a control block diagram of the present invention
Fig. 3 is the firing unit schematic representation
Fig. 4 is a dimethyl ether gas-duct jetting device schematic representation
Fig. 5 is the electronic control unit controls principle schematic
Fig. 6 is the control flow chart of motor when loading the operating mode of middle high load
Fig. 7 is the control flow chart of motor when cold start-up and hot turner condition
Control flow chart when Fig. 8 is high load working condition for the mode of operation of motor
Embodiment:
Shown in Fig. 1,3,4: a kind of minimum discharge methanol-fueled engine (is example with the four-cylinder), by motor 1, methanol tank 2, have heating equipment catalytic converter 3, pressurized container 4 and electronic control unit ECU and form; Methanol tank is connected with motor by pressing the common rail fuel injection device in automatically controlled; Methanol tank by oil transfer pump 5 and flow control valve 6 be installed in engine exhaust pipe 7 on catalytic converter in reactor 8 be connected, this reactor is connected with pressurized container; Pressurized container be installed in motor on and the dimethyl ether solenoid valve that is connected with intake manifold 9 10 connect; Engine exhaust pipe is connected with the EGR valve, and the EGR valve is connected with intake duct;
As shown in Figure 3: the above-mentioned automatically controlled middle common rail fuel injection device of pressing is formed by being installed in methyl alcohol electric-controlled fuel injector 11 on the cylinder, glow plug 12, high-pressure oil pipe 13 and return tube 14; The methyl alcohol electric-controlled fuel injector is connected, is connected with methanol tank by return tube with oil transfer pump 16 on the methanol tank by high-pressure oil pipe dress high pressure oil pump 15 thereon.
As shown in Figure 5: the input end of electronic control unit receives engine operation condition parameter signal, intake temperature and pressure signal, the cooling water temperature signal of motor output, temperature and pressure signal, throttle position signal, top dead center signal, tach signal, corner signal and the detonation sensor signal of catalytic converter, and output terminal and flow control valve, dimethyl ether solenoid valve, methyl alcohol electric-controlled fuel injector, glow plug, EGR valve are connected with Electric heating appliance in the reactor.
As shown in Figure 2: it is the new work engine of fuel that the present invention adopts with methyl alcohol, promptly uses M100 fuel on traditional compression ignition engine.Methanol fuel is divided into two-way, and directly by pressing the Common rail fuel injection system direct cylinder injection in automatically controlled, another road generates dimethyl ether through catalytic converter to a part, sprays into cylinder by air flue.The HCCI combustion mode of dimethyl ether single-fuel, the dimethyl ether and the methyl alcohol double fuel HCCI combustion mode of the following operating mode of middle high load when realizing cold starting, and high load working condition is by the dual combustion mode combustion scheme of glow plug heating methanol compression and combustion.Realize the HCCI combustion mode by exhaust gas recirculation (EGR) technology in bigger operating mode scope, and make the interior equivalent proportion air fuel ratio of cylinder be controlled to be 1.Simultaneously, adopt ripe three-element catalytic transformation technology to reduce HC and CO discharging, make motor in whole operating mode scopes, realize efficient, oligosaprobic purpose, satisfy the requirement of the above Abgasgesetz of European IV standard.The employing of this technology will produce favorable economic benefit and social benefit.
Workflow of the present invention is: ECU reads the signals such as temperature and pressure of engine throttle position, engine speed, intake temperature and pressure, cooling water temperature, catalytic reactor, at first judge the operating conditions of motor, when motor is in startup and hot turner condition, the Electric heating appliance of catalytic converter starts, the methyl alcohol flowmeter starts, fuel changes into dimethyl ether by catalytic converter and sprays into cylinder by intake duct at this moment, glow plug and methyl alcohol oil sprayer are closed, and its control flow chart as shown in Figure 7.
As shown in Figure 6: when motor is in little load to middle high load, glow plug is closed, methyl alcohol presses common rail system directly to spray in the cylinder in automatically controlled, another road converts dimethyl ether to through transducer and is sprayed into by air flue, in gas replenishment process enters cylinder, according to the methyl alcohol flow of regulating working conditions flowmeter and the emitted dose of dimethyl ether, and according to the temperature adjustment of reactor or close Electric heating appliance.
As shown in Figure 8: can not realize the high load working condition that moves when motor is in HCCI, close Electric heating appliance and automatically controlled methyl alcohol Flow valve, this moment, methyl alcohol was only by pressing common rail system directly to spray in the cylinder in automatically controlled, and need open or close glow plug according to the situation of motor operation, methyl alcohol adopts the repeatedly oil spout control of pulsing according to operating mode, realizes methanol fuel quasi-Homogeneous stratified mixture combustion.In full engine load operating mode scope, all need to control the EGR ratio, make motor realize that in the full load mode scope the empty equivalent proportion of combustion is 1.
Claims (2)
1, a kind of minimum discharge methanol-fueled engine is characterized in that: be made up of motor, methanol tank, the catalytic converter that has heating equipment and electronic control unit ECU; Methanol tank is connected with motor by pressing the common rail fuel injection device in automatically controlled; Methanol tank by oil transfer pump and flow control valve be installed in engine exhaust pipe on catalytic converter in reactor be connected, catalytic converter is connected with the dimethyl ether solenoid valve that is installed in intake manifold through pressurized container; Engine exhaust pipe is connected with the EGR valve, and the EGR valve is connected with suction tude; The input end of electronic control unit receives engine operation condition parameter signal, intake temperature and pressure signal, the cooling water temperature signal of motor output, temperature and pressure signal, throttle position signal, top dead center signal, tach signal, corner signal and the detonation sensor signal of catalytic converter, and output terminal and flow control valve, dimethyl ether solenoid valve, methyl alcohol electric-controlled fuel injector, glow plug, EGR valve are connected with Electric heating appliance in the reactor.
2, minimum discharge methanol-fueled engine according to claim 1 is characterized in that: the above-mentioned common rail fuel injection device of pressing in automatically controlled is formed by being installed on the cylinder methyl alcohol electric-controlled fuel injector, glow plug, high-pressure oil pipe and return tube; The methyl alcohol electric-controlled fuel injector is connected, is connected with methanol tank by return tube with oil transfer pump on the methanol tank by high-pressure oil pipe dress high pressure oil pump thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021539049A CN1327121C (en) | 2002-12-05 | 2002-12-05 | Methane fuel engine with very low discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021539049A CN1327121C (en) | 2002-12-05 | 2002-12-05 | Methane fuel engine with very low discharge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1506565A true CN1506565A (en) | 2004-06-23 |
| CN1327121C CN1327121C (en) | 2007-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021539049A Expired - Fee Related CN1327121C (en) | 2002-12-05 | 2002-12-05 | Methane fuel engine with very low discharge |
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| CN (1) | CN1327121C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102947571A (en) * | 2010-03-31 | 2013-02-27 | 赫多特普索化工设备公司 | Method and system for operating pressure ignition engine |
| CN101608972B (en) * | 2008-06-19 | 2013-09-04 | 福特环球技术公司 | Method for detecting fuel vaporizer coking |
| CN103397945A (en) * | 2013-08-16 | 2013-11-20 | 吉林大学 | Methanol engine load control system |
| CN105179112A (en) * | 2015-10-10 | 2015-12-23 | 天津大学 | System and method for reducing NOx and particles in emitted pollutants of diesel engine |
| CN106812635A (en) * | 2017-03-31 | 2017-06-09 | 江西五十铃发动机有限公司 | A kind of engine glow plug control device and its control method |
| CN108691701A (en) * | 2017-04-10 | 2018-10-23 | 刘海平 | For the combustion method of methanol-fueled engine, combustion system and heating device |
| CN114623013A (en) * | 2022-03-22 | 2022-06-14 | 天津大学 | Stable combustion control method suitable for compression ignition type methanol engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718224B (en) * | 2009-12-07 | 2012-06-27 | 奇瑞汽车股份有限公司 | Compression-ignition methanol engine and control method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZW28380A1 (en) * | 1979-12-27 | 1981-07-22 | Aeci Ltd | A device for converting alcohols to ethers |
| JPS57153952A (en) * | 1981-03-19 | 1982-09-22 | Nissan Motor Co Ltd | Starting device of alcohol engine |
| EP0201670B1 (en) * | 1985-05-08 | 1993-05-26 | Volkswagen Aktiengesellschaft | Device for the preparation of liquids being essentially composed of methanol |
| JPH0388957A (en) * | 1989-08-22 | 1991-04-15 | New Zealand Government | Fuel feeder and controller of compressed ignition engine |
| JPH04232367A (en) * | 1990-12-28 | 1992-08-20 | Riken Corp | Method for igniting diesel engine |
| DE60027675T2 (en) * | 1999-12-10 | 2006-11-09 | Haldor Topsoe A/S | Method for operating a diesel internal combustion engine |
| CN2585984Y (en) * | 2002-12-05 | 2003-11-12 | 天津大学 | Methyl alcohol fuel engine |
-
2002
- 2002-12-05 CN CNB021539049A patent/CN1327121C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608972B (en) * | 2008-06-19 | 2013-09-04 | 福特环球技术公司 | Method for detecting fuel vaporizer coking |
| CN102947571A (en) * | 2010-03-31 | 2013-02-27 | 赫多特普索化工设备公司 | Method and system for operating pressure ignition engine |
| US9109506B2 (en) | 2010-03-31 | 2015-08-18 | Haldor Topsoe A/S | Method for operating a pressure ignition engine |
| CN103397945A (en) * | 2013-08-16 | 2013-11-20 | 吉林大学 | Methanol engine load control system |
| CN105179112A (en) * | 2015-10-10 | 2015-12-23 | 天津大学 | System and method for reducing NOx and particles in emitted pollutants of diesel engine |
| CN106812635A (en) * | 2017-03-31 | 2017-06-09 | 江西五十铃发动机有限公司 | A kind of engine glow plug control device and its control method |
| CN108691701A (en) * | 2017-04-10 | 2018-10-23 | 刘海平 | For the combustion method of methanol-fueled engine, combustion system and heating device |
| CN108691701B (en) * | 2017-04-10 | 2021-01-12 | 刘海平 | Combustion method, combustion system and heating device for methanol fuel engine |
| CN114623013A (en) * | 2022-03-22 | 2022-06-14 | 天津大学 | Stable combustion control method suitable for compression ignition type methanol engine |
| CN114623013B (en) * | 2022-03-22 | 2023-02-28 | 天津大学 | Stable combustion control method suitable for compression ignition type methanol engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1327121C (en) | 2007-07-18 |
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