CN106837567A - The cold start-up method of methanol engine - Google Patents
The cold start-up method of methanol engine Download PDFInfo
- Publication number
- CN106837567A CN106837567A CN201611263974.4A CN201611263974A CN106837567A CN 106837567 A CN106837567 A CN 106837567A CN 201611263974 A CN201611263974 A CN 201611263974A CN 106837567 A CN106837567 A CN 106837567A
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- China
- Prior art keywords
- engine
- natural gas
- cold
- methyl alcohol
- injection
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
- F02D19/0652—Biofuels, e.g. plant oils
- F02D19/0655—Biofuels, e.g. plant oils at least one fuel being an alcohol, e.g. ethanol
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses a kind of cold start-up method of methanol engine.The cold start-up method of the methanol engine carries out the injection simultaneously of engine cold-start, methyl alcohol and natural gas using natural gas injection carries out engine cold-start or methyl alcohol and natural gas alternating spray carries out engine cold-start.The cold start-up method of the methanol engine is by during engine cold-start, enter after being mixed with air using natural gas and lighted in cylinder, after engine start success, now cylinder keep away face and cylinder cap to keep away face temperature higher, methyl alcohol is easier to light with the gaseous mixture of air, so as to cold start-up is difficult under solving the problems, such as methyl alcohol combustion mode, reduce the demand of ignition system fires energy, the engine ignition burning that mode is spark ignition type of igniting easily is realized, the reliability and engine health of ignition system is improved.
Description
Technical field
The present invention relates to engine art, more particularly to a kind of cold start-up method of methanol engine.
Background technology
In recent years, because petroleum resources are nervous, engine energy diversification aggravation, by oil for the engine of fuel is compeled
It is essential and seeks searching substitute fuel.Engine with methanol fuel as substitute fuel, no matter from meeting engine power performance requirement
Or in terms of the possibility of long run supply, production technology and use cost, all with good potentiality to be exploited and application prospect,
It is more suitable substitute fuel.And the engine exhaust of burning methanol is without soot, nitrogen oxides, particulate matter, nytron
The discharge such as thing is reduced, so as to reduce pollution of the motor exhaust to environment.Methanol engine combustion system and burning traditional fuel
Engine it is similar, i.e. methyl alcohol is ignited mixture combustion after mixing with air using compression ignition or by the way of lighting.
Methyl alcohol ignites mode for spark ignitor formula with the gaseous mixture of air in the prior art, but due to methyl alcohol ignition temperature
Higher, during engine cold-start, because intake air temperature is low, the gentle oil temperature of engine water is low, cylinder keep away face and
Cylinder cap keeps away that face temperature is low, and the gaseous mixture that ignites needs ignition energy higher, gaseous mixture to be fired compared with difficult point, and engine cannot be opened smoothly
It is dynamic.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the invention, without answering
In being considered as recognizing or imply in any form that the information structure has been the prior art well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of cold start-up method of the methanol engine of simple and reasonable steps, methyl alcohol hair
The cold start-up method of motivation reduces the demand of ignition system fires energy, it is easier to realize mode starting for spark ignition type of igniting
Machine ignition, improves the reliability and engine health of ignition system, reduces the cost of engine development.
To achieve the above object, the invention provides a kind of cold start-up method of methanol engine, using natural gas injection
Injection carries out engine cold-start or methyl alcohol and natural gas alternating spray enters simultaneously to carry out engine cold-start, methyl alcohol and natural gas
Row engine cold-start.
Preferably, in above-mentioned technical proposal, when carrying out engine cold-start using natural gas injection, the control of methyl alcohol controller
Methyl alcohol injector stops injection methyl alcohol, and natural airgun controller control natural gas injector injection natural gas is started；Engine
After starting successfully, natural airgun controller control natural gas injector is gradually reduced natural gas injection amount until completely cutting through natural gas
Injection, methyl alcohol controller control methyl alcohol injector recovers the corresponding methyl alcohol aim parameter of injection.
Preferably, in above-mentioned technical proposal, it is compression-ignited startup or point to use natural gas injection to carry out engine cold-start
Combustion starts.
Preferably, in above-mentioned technical proposal, natural gas is CNG or LNG.
Compared with prior art, the present invention has the advantages that：The cold start-up method of the methanol engine by
Enter during engine cold-start, after being mixed with air using natural gas and lighted in cylinder, after engine start success, now
Cylinder keeps away face and cylinder cap keeps away that face temperature is higher, and methyl alcohol is easier to light with the gaseous mixture of air, so as to solve methyl alcohol burning mould
The difficult problem of cold start-up, reduces the demand of ignition system fires energy under formula, it is easier to which realization ignites mode for spark ignition type
Engine ignition burning, improve ignition system reliability and engine health.
Brief description of the drawings
Fig. 1 is the structural representation of the cold start-up method of methanol engine of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
The cold start-up method of the methanol engine according to the specific embodiment of the invention is adopted during engine cold-start
With natural gas (main component is methane CH4) pattern, that is, natural gas is provided, natural gas enters cylinder midpoint after mixing with air
Combustion, after engine start success, now cylinder keeps away face and cylinder cap keeps away that face temperature is higher, and methyl alcohol is easier to the gaseous mixture of air
Light, so as to solve the problems, such as that cold start-up is difficult under methyl alcohol combustion mode.
As shown in figure 1, being divided into two-way using the engine fuel air inlet pipeline of the cold start-up method of the methanol engine：One
Road is methanol fuel pipeline, and methanol fuel is pumped out from methanol fuel tank 1, and enters methyl alcohol injection by methyl alcohol feeding pipe 2
Device 10, during methyl alcohol sprayed into air inlet pipe 7 or air intake duct by methyl alcohol injector 10, methyl alcohol in air inlet pipe or air intake duct with air
Enter after mixing in cylinder 12 and light burning through spark plug 11, the injection of methanol fuel is controlled by methyl alcohol controller 9.
Another road of engine fuel air inlet pipeline is gas fuel pipeline, and natural gas is by natural gas gas tank 3 through natural gas supply pipe
Road 4 enters natural gas injector 5, and natural gas injector 5 sprays into natural gas in the blender 6 of air inlet pipe 7 or air intake duct, naturally
Gas enters in cylinder 12 after mixing with air in blender 6 lights burning through spark plug 11, and the injection of natural gas is received
The control of natural airgun controller 8.
The cold start-up method of the methanol engine according to the specific embodiment of the invention is：In the process of engine cold-start
In, methyl alcohol controller control methyl alcohol injector stops injection methyl alcohol, and natural airgun controller control natural gas injector injection is natural
Gas is started.After engine start success (rotating speed is more than certain value), natural airgun controller control natural gas injector gradually subtracts
Small natural gas injection amount is until completely cut through natural gas injection, methyl alcohol controller control methyl alcohol injector recovers the corresponding first of injection
Alcohol aim parameter.
In above-mentioned technical proposal, during engine cold-start, can also simultaneously spray methyl alcohol and natural gas is opened
Move or started using methyl alcohol and natural gas alternating spray.Natural gas and air Mixture or natural gas and methyl alcohol, air it is mixed
The mode of igniting for closing gas can be in any one form such as compression-ignited, spark ignition type.Natural gas form can be CNG or LNG.LNG is
The abbreviation of liquefied natural gas (Liquefied Natural Gas), main component is methane.Compressed natural gas (Compressed
Natural Gas, abbreviation CNG) it is that natural gas pressurization is stored in a reservoir (more than 3,600 pounds/square inch) and with gaseous state, it
Component with pipe natural gas is identical, and CNG can be utilized as motor vehicle fuel.
To sum up, the cold start-up method of the methanol engine reduces the demand of ignition system fires energy, it is easier to realize
Mode of igniting is burnt for the engine ignition of spark ignition type, improves the reliability and engine health of ignition system, and reduction is started
The cost of machine exploitation.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of cold start-up method of methanol engine, it is characterised in that engine cold-start, first are carried out using natural gas injection
The injection simultaneously of alcohol and natural gas carries out engine cold-start or methyl alcohol and natural gas alternating spray carries out engine cold-start.
2. the cold start-up method of methanol engine according to claim 1, it is characterised in that carried out using natural gas injection
During engine cold-start, methyl alcohol controller control methyl alcohol injector stops injection methyl alcohol, and natural airgun controller controls gas spraying
Emitter injection natural gas is started；After engine start success, natural airgun controller control natural gas injector is gradually reduced
Natural gas injection amount is until completely cut through natural gas injection, methyl alcohol controller control methyl alcohol injector recovers the corresponding methyl alcohol of injection
Aim parameter.
3. the cold start-up method of methanol engine according to claim 2, it is characterised in that carried out using natural gas injection
Engine cold-start is that compression-ignited startup or spark ignition type start.
4. the cold start-up method of methanol engine according to claim 1, it is characterised in that natural gas is CNG or LNG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263974.4A CN106837567A (en) | 2016-12-30 | 2016-12-30 | The cold start-up method of methanol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263974.4A CN106837567A (en) | 2016-12-30 | 2016-12-30 | The cold start-up method of methanol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106837567A true CN106837567A (en) | 2017-06-13 |
Family
ID=59116713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611263974.4A Pending CN106837567A (en) | 2016-12-30 | 2016-12-30 | The cold start-up method of methanol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106837567A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268832A (en) * | 2018-11-04 | 2019-01-25 | 东华理工大学 | A kind of combustion method and device of the burning of natural gas starting alcohol radical combusting vaporization and realization vigorous fire |
| CN109973266A (en) * | 2018-12-20 | 2019-07-05 | 华中科技大学 | A kind of the methanol engine cold-starting device and method of multi-stage jet |
| CN117028049A (en) * | 2023-10-07 | 2023-11-10 | 潍柴动力股份有限公司 | Cold start control method and related device for methanol engine |
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| CN101008369A (en) * | 2006-12-28 | 2007-08-01 | 奇瑞汽车有限公司 | Equipment used for cold starting with methanol |
| CN201187352Y (en) * | 2008-05-08 | 2009-01-28 | 山西成功淮海发动机有限公司 | Methanol fuel engine |
| CN201739012U (en) * | 2010-01-06 | 2011-02-09 | 马高俊 | Methanol engine cold start system |
| CN103089468A (en) * | 2013-01-17 | 2013-05-08 | 李飞 | Cold start controller and cold start method for automobile with methyl alcohol as fuel |
| CN203403961U (en) * | 2013-07-25 | 2014-01-22 | 张亚东 | Double-fuel methanol automobile device |
| CN106285969A (en) * | 2016-09-29 | 2017-01-04 | 浙江吉利控股集团有限公司 | A kind of methanol-fueled engine low temperature cold starting device |
| CN206017028U (en) * | 2016-09-20 | 2017-03-15 | 张亚东 | A kind of cold start-up double fuel methanol vehicle |
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- 2016-12-30 CN CN201611263974.4A patent/CN106837567A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008369A (en) * | 2006-12-28 | 2007-08-01 | 奇瑞汽车有限公司 | Equipment used for cold starting with methanol |
| CN201187352Y (en) * | 2008-05-08 | 2009-01-28 | 山西成功淮海发动机有限公司 | Methanol fuel engine |
| CN201739012U (en) * | 2010-01-06 | 2011-02-09 | 马高俊 | Methanol engine cold start system |
| CN103089468A (en) * | 2013-01-17 | 2013-05-08 | 李飞 | Cold start controller and cold start method for automobile with methyl alcohol as fuel |
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| CN106285969A (en) * | 2016-09-29 | 2017-01-04 | 浙江吉利控股集团有限公司 | A kind of methanol-fueled engine low temperature cold starting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268832A (en) * | 2018-11-04 | 2019-01-25 | 东华理工大学 | A kind of combustion method and device of the burning of natural gas starting alcohol radical combusting vaporization and realization vigorous fire |
| CN109973266A (en) * | 2018-12-20 | 2019-07-05 | 华中科技大学 | A kind of the methanol engine cold-starting device and method of multi-stage jet |
| CN117028049A (en) * | 2023-10-07 | 2023-11-10 | 潍柴动力股份有限公司 | Cold start control method and related device for methanol engine |
| CN117028049B (en) * | 2023-10-07 | 2024-01-16 | 潍柴动力股份有限公司 | Cold start control method and related device for methanol engine |
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Application publication date: 20170613 |