CN101008369A - Equipment used for cold starting with methanol - Google Patents
Equipment used for cold starting with methanol Download PDFInfo
- Publication number
- CN101008369A CN101008369A CN 200610155958 CN200610155958A CN101008369A CN 101008369 A CN101008369 A CN 101008369A CN 200610155958 CN200610155958 CN 200610155958 CN 200610155958 A CN200610155958 A CN 200610155958A CN 101008369 A CN101008369 A CN 101008369A
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- China
- Prior art keywords
- fuel tank
- cold start
- fuel
- main
- methanol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 239000000446 fuel Substances 0.000 claims abstract description 66
- 239000002828 fuel tank Substances 0.000 claims description 67
- 239000007788 liquid Substances 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000003502 gasoline Substances 0.000 description 23
- 239000003921 oil Substances 0.000 description 22
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- MRMOZBOQVYRSEM-UHFFFAOYSA-N tetraethyllead Chemical compound CC[Pb](CC)(CC)CC MRMOZBOQVYRSEM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention relates to a device used in carbinol cold start, wherein, the fuel system comprises a main oil box and a cold start oil box. The main oil box stores the fuel added by the driver. The cold start oil box stores the pure petrol or carbinol fuel. The oil tube of main oil box via the main filter and one branch of pressure valve is connected to the oil track to supply the pressure fuel, while another branch via the first adjusting valve is connected to the main oil box and the cold start oil box. The cold start oil box via the cold start oil pump is divided into two branches at the second adjusting valve, while one branch is connected to the cold start oil box and another branch is connected to the oil track via the filter. The invention has the advantages in simple structure and high reliability, while it can resolve the problem as hard cold start, to improve the dynamic behavior at low temperature.
Description
Technical field
The present invention relates to the priming technique of methanol fuel automobile, relate in particular to and comprise the start-up system of methanol fuel at interior dual-fuel automobile.
Background technique
Methyl alcohol can be synthesized by raw materials such as coal, rock gas, timber and rubbish, also can utilize the electric energy brine electrolysis that solar energy, water energy or atomic power produce and obtains hydrogen, and again with hydrogen and CO2 synthesizing methanol, therefore, the resource of methyl alcohol is very abundant.It is raw material that rock gas and coal are adopted in present countries in the world more.Because the coal reserves of China is very abundant, therefore, is had a extensive future in China by the coal synthesizing methanol.
Show that through for many years test methanol fuel is except that energy-conservation, more noticeable is the discharging that can reduce dusty gas in the methanol fuel using process.
At first, methyl alcohol octane value height can mix with the gasoline that does not add tetraethyllead; Secondly, the chemically correct fuel of methyl alcohol is little, helps perfect combustion, and the discharge amount of CO, HC and NOX reduces, but after mixing burning gasoline, the discharging of methyl alcohol and formaldehyde increases to some extent; Moreover, be liquid under the methyl alcohol normal temperature, processing ease, accumulating is convenient.Mixed form commonly used at present has: M5-M20, and M50-M85, M85-M100, M5 methyl alcohol fuel combination are meant that the methyl alcohol volume concentration is 5% gasoline.
At present, the methanol fuel car has reached the practical stage on technology and cost.In the Japan and the U.S., methyl alcohol dual-fuel vehicle and flexible fuel car put into operation.China has carried out the feasibility study of corrosion-resistant research and flexible fuel technology, intends promoting in particular locality.
Summary of the invention
Purpose of the present invention just provides a kind of device that is used for cold starting with methanol, effectively overcomes the problem of methanol engine cold starting difficulty.
For achieving the above object, the technical solution used in the present invention is: a kind of device that is used for cold starting with methanol, it is characterized in that: fuel system comprises main fuel tank and cold start-up fuel tank, what stored the main fuel tank the inside is the fuel that is added by the driver, what stored cold start-up fuel tank the inside is pure Fuel Petroleum or methanol fuel, and oiling mechanism makes the fuel in the main fuel tank flow into the cold start-up fuel tank automatically; Oil pipe on the main fuel tank is connected to oily rail and supplies with its pressure fuel through main filter, pressure valve one tunnel successively, another road be linked back respectively behind first modulating valve main fuel tank and cold start-up fuel tank; Described cold start-up fuel tank is divided into two-way after via cold start-up oil pump to the second modulating valve, and one the tunnel takes back the cold start-up fuel tank, and another road is connected to oily rail behind filter cleaner.
The present invention in use, when opening engine ignition switch, the EMS fuel identification system just begins to read the temperature of cooling liquid.If this temperature is lower than the limiting temperature that cold-starting device works, main oil pump just can not worked, but begins fuel feeding by the cold start-up oil pump, when engine start, the cold start-up oil pump will disconnect the operation of main oil pump connection simultaneously.The invention has the advantages that system hardware changes seldom, apparatus structure is simple, is easy to realize that the reliability height has solved the problem of methanol engine cold starting difficulty effectively, thereby has improved the power performance under the low temperature.
Summary of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
In conjunction with Fig. 1, fuel system comprises main fuel tank 10 and cold start-up fuel tank 20, what stored main fuel tank 10 the insides is the fuel that is added by the driver, what stored cold start-up fuel tank the inside is pure Fuel Petroleum or methanol fuel, the methyl alcohol ratio is lower, be generally the following fuel of M15, oiling mechanism makes the fuel in the main fuel tank 10 inject cold start-up fuel tank 20, this mechanism makes and to finish when the gasoline that pure gasoline of interpolation or methyl alcohol ratio are lower in main fuel tank 10, fuel in the main fuel tank 10 flows into the cold start-up fuel tank automatically, and does not need independent cold start-up oil tank fuel loading system.
Oil pipe on the main fuel tank 10 is connected to oily rail 50 through main filter 30, pressure valve 40 one tunnel successively and gives its pressure fuel altogether, another road be linked back respectively behind first modulating valve 60 main fuel tank 10 and cold start-up fuel tank 20; Described cold start-up fuel tank 20 is via cold start-up oil pump 70 to the second modulating valve two-way that is divided into after 80s, and one the tunnel takes back cold start-up fuel tank 20, and another road is connected to oily rail 50 through filter cleaner is after 90s.
Described cold start-up fuel tank 20 links to each other with oily rail 50 through safety check 100 through filter cleaner is after 90s.The effect of safety check 100 is: the fuel oil of coming from oil pipe in order to guarantee the pressure stability in the oily rail 50, is only permitted oil pipe and the 50 unidirectional conductings of oily rail owing to be in flowing state.
Described first and second modulating valve 60,80 is hydraulic control or electric controlled regulating valve, and its control signal is provided by ECU control module 110.
Be provided with liquid level sensor in the described cold start-up fuel tank 20, this sensor links to each other with emergency warning lamp circuit on the instrument panel; Be provided with liquid level sensor in the main fuel tank 10, this sensor links to each other with emergency warning lamp circuit and control circuit thereof on the instrument panel.
When the fuel height in the cold start-up fuel tank 20 dropped to below the critical line, the sensor in the cold start-up fuel tank 20 will be lighted the emergency warning lamp on the instrument panel.This warning light prompting driver when refueling next time will toward fuel tank in add pure gasoline, rather than Aalcohols fuel.Add after the fuel, if the EMS fuel identification system detects the gasoline percentage height very in the main fuel tank 10, the EMS fuel identification system will make the gasoline in the main fuel tank 10 transfer to the cold start-up fuel tank 20 from pressure valve 40 so.After the transmission of this fuel was finished, cold start-up fuel tank 20 was full of gasoline again, and automobile just can add Aalcohols fuel afterwards, need add gasoline again up to cold start-up fuel tank 20 next time.In the vehicle complete vehicle running, if the driver directly adds pure gasoline once in a while in main fuel tank 10, as long as the fuel gasoline percentage that the EMS fuel identification system detects in the main fuel tank 10 is high, the EMS fuel identification system will take advantage of the occasion cold start-up fuel tank 20 is refueled.
As long as when the EMS fuel identification system reached certain value by instrument acquisition main fuel tank 10 fuel oil height, the fuel that gasoline percentage is high just can be transferred to cold start-up fuel tank 20 from main fuel tank 10, and this transmission is step.In the transmission course in the cold start-up fuel tank 20 remaining fuel oil from cold start-up fuel tank 20, flow back into main fuel tank 10.Therefore as long as this transmission takes place, the fuel oil in the cold start-up fuel tank 20 will obtain upgrading.
Owing to be used for cold start fuel at every turn all is seldom a part of, so fuel tank need can start nearly 40 times before once filling.
Because the high latent heat of vaporization and the low vapor tension of methyl alcohol caused methanol engine cold starting difficulty, device provided by the invention is exactly in order to solve cold start problem.Using multipoint injection system is to control and the balanced effective ways that distribute fuel.
Below in conjunction with description of drawings working principle of the present invention.
The present invention is realized controlling by the EMS fuel identification system, and at first the limiting temperature that cold-starting device is worked is demarcated.Cold-starting device works when being lower than this limiting temperature, just uses gasoline to start.
When opening engine ignition switch, the EMS fuel identification system just begins to read the temperature of cooling liquid.If this temperature is lower than the limiting temperature that cold-starting device works, main oil pump just can not worked.But by cold start-up oil pump 40 beginning fuel feeding.Second modulating valve 80 is one fen flow throttle valve, connects so that gasoline can directly enter oily rail 50 from cold start-up fuel tank 20.The Aalcohols fuel of these gasoline in will displace oil rail 50 makes it flow back to main fuel tank by first modulating valve 60, and first modulating valve 60 also is a shunting valve.System demarcates the working state of first modulating valve 60, demarcate and make when the surface of contact of the Aalcohols fuel in gasoline in the cold start-up fuel tank 20 and the oily rail 50 has just flow through first modulating valve 60 to the main oil pump diffluence, first modulating valve 60 cuts out the passage towards main oil pump, and open towards the passage of cold start-up oil pump 70, make remaining gasoline flow back in the cold start-up fuel tank 20.
When need not carry out the gasoline cold start-up, second modulating valve 80 makes fuel flow together to cold start-up fuel tank 20 from cold start-up oil pump 70.This has just guaranteed that cold start-up oil pump 70 can both fuel feeding when each igniting, has prevented that vehicle from can not start after parking for a long time.
In case engine start, cold start-up oil pump 70 will disconnect the operation of main oil pump connection simultaneously.First modulating valve 60 will be changed and make remaining fuel flow back into main fuel tank 10 from pressure valve 40.Producing the sufficient amount of heat heating in the launched machine of methanol fuel in the oil circuit between pressure valve 40 and oily rail 50 makes motor as using gasoline stable operation.When the surface of contact of methanol fuel and gasoline flowed to oily rail 50 through fuel pipe, the accumulative total numeral of igniting pulsewidth will produce increment.This method is used for inferring that gasoline has just arrived the time of oily rail 50.Will significantly increase the change of satisfying oily rail 50 intermediate fuel oil compositions in this pulsewidth of lighting a fire constantly.
Need not to be provided with separately cold start-up fuel filling mechanism among the present invention, and can make under the motor temperature that under normal circumstances alcohol fuel automobile can not start and start; It also can make motor turn round under pure gasoline situation, produces sufficient amount of heat to keep its steady running under Aalcohols fuel up to motor; This has just improved the power performance under the low temperature.
Claims (4)
1, a kind of device that is used for cold starting with methanol, it is characterized in that: fuel system comprises main fuel tank (10) and cold start-up fuel tank (20), what stored main fuel tank (10) the inside is the fuel that is added by the driver, what stored cold start-up fuel tank (20) the inside is pure Fuel Petroleum or methanol fuel, and oiling mechanism makes the fuel in the main fuel tank (10) flow into cold start-up fuel tank (20) automatically; Oil pipe on the main fuel tank (10) passes through main filter (30) successively, pressure valve (40) a tunnel is connected to oily rail (50) and supplies with its pressure fuel, another road be linked back respectively behind first modulating valve (60) main fuel tank (10) and cold start-up fuel tank (20); Described cold start-up fuel tank (20) is divided into two-way via cold start-up oil pump (70) to second modulating valve (80), the one tunnel takes back cold start-up fuel tank (20), and another road is connected to oily rail (50) behind filter cleaner (90).
2, the device that is used for cold starting with methanol according to claim 1 is characterized in that: described cold start-up fuel tank (20) passes through filter cleaner (90) after safety check (100) links to each other with oily rail (50).
3, the device that is used for cold starting with methanol according to claim 1 is characterized in that: described first and second modulating valve (60), (80) are hydraulic control or electric controlled regulating valve, and its control signal is provided by ECU control module (110).
4, the device that is used for cold starting with methanol according to claim 1 and 2 is characterized in that: be provided with liquid level sensor in the described cold start-up fuel tank (20), this sensor links to each other with emergency warning lamp circuit on the instrument panel; Main fuel tank is provided with liquid level sensor in (10), and this sensor links to each other with emergency warning lamp circuit and control circuit thereof on the instrument panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610155958 CN101008369A (en) | 2006-12-28 | 2006-12-28 | Equipment used for cold starting with methanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610155958 CN101008369A (en) | 2006-12-28 | 2006-12-28 | Equipment used for cold starting with methanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008369A true CN101008369A (en) | 2007-08-01 |
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ID=38696967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610155958 Pending CN101008369A (en) | 2006-12-28 | 2006-12-28 | Equipment used for cold starting with methanol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101008369A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010060378A1 (en) * | 2008-11-27 | 2010-06-03 | 奇瑞汽车股份有限公司 | Fuel control system for alcohol and gasoline dual-fuel engine and control method thereof |
| CN102338000A (en) * | 2011-09-28 | 2012-02-01 | 刘孟波 | Fuel control device of dual-fuel automobile |
| CN106837567A (en) * | 2016-12-30 | 2017-06-13 | 广西玉柴机器股份有限公司 | The cold start-up method of methanol engine |
| CN107939576A (en) * | 2017-12-14 | 2018-04-20 | 重庆市大为能源有限公司 | Alcohol-based fuel system and its cold-starting device |
| CN108071485A (en) * | 2017-11-09 | 2018-05-25 | 浙江义利汽车零部件有限公司 | A kind of supercharging methanol engine system |
-
2006
- 2006-12-28 CN CN 200610155958 patent/CN101008369A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010060378A1 (en) * | 2008-11-27 | 2010-06-03 | 奇瑞汽车股份有限公司 | Fuel control system for alcohol and gasoline dual-fuel engine and control method thereof |
| CN102338000A (en) * | 2011-09-28 | 2012-02-01 | 刘孟波 | Fuel control device of dual-fuel automobile |
| CN106837567A (en) * | 2016-12-30 | 2017-06-13 | 广西玉柴机器股份有限公司 | The cold start-up method of methanol engine |
| CN108071485A (en) * | 2017-11-09 | 2018-05-25 | 浙江义利汽车零部件有限公司 | A kind of supercharging methanol engine system |
| CN107939576A (en) * | 2017-12-14 | 2018-04-20 | 重庆市大为能源有限公司 | Alcohol-based fuel system and its cold-starting device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |