CN104265450B - Methanol-based fuel high-pressure supplying device - Google Patents
Methanol-based fuel high-pressure supplying device Download PDFInfo
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- CN104265450B CN104265450B CN201410502556.0A CN201410502556A CN104265450B CN 104265450 B CN104265450 B CN 104265450B CN 201410502556 A CN201410502556 A CN 201410502556A CN 104265450 B CN104265450 B CN 104265450B
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Abstract
The invention discloses a methanol-based fuel high-pressure supplying device. The device comprises a methanol tank, a water tank and a dimethyl ether tank which respectively contain methanol, water and dimethyl ether; both the methanol tank and the water tank are connected with pre-pressurizing systems; the dimethyl ether tank is connected with a mixed measuring system; the pre-pressurizing systems and the mixed measuring system are connected, wherein the mixed measuring system is sequentially connected with a pressurizing system and an engine; in addition, the pressurizing system and the pre-pressurizing systems are all connected with air compressing devices. The methanol-based fuel high-pressure supplying device has the beneficial effects that methanol, dimethyl ether and water are mixed based on different ratios; in addition, the online control is realized; the demand on material supply at different pressures can be realized under a high pressure of 100 MPa; meanwhile, the flow rate can be adjusted within a certain range, and the utilization rate of the methanol-based fuel can be raised; the supplying system has a wide range of output pressure and can directly enter an internal combustion engine and other energy consumption devices without pressure reduction, and thus the energy consumption can be reduced; the self-cooling is realized, the operation can be individually performed, the pollution resource is avoided, and the long-time, safe, stable and reliable operation is reached.
Description
Technical field
The present invention relates to a kind of methanol-based fuel high pressure feeder apparatus.
Background technology
Develop rapidly with economic, the degree of environmental pollution increasingly increases so that people increasingly pay attention to for environment
Protection, for increasingly serious energy supply and environmental conservation dual-pressure, actively studying new cleaning energy both at home and abroad
Source, the substitute fuel that methanol-based fuel cleans as internal combustion engine (diesel engine) is it is shown that its huge development potentiality；Domestic at present
The outer positive combustibility of research methanol-based fuel and discharge, and achieve great achievement；But and the confession that research is supporting
Material equipment, remains at traditional stage.
Problem and defect that existing methanol-based fuel feed system exists:
1) single function, complex operation, volume weight is big, and automaticity is low；
2) during each composition mixing of methanol-based fuel using electronic scale, ratio inaccurate it is impossible to adjustable online；
3) directly by motor-driven, circulation rate is non-adjustable, and flow is immutable to be supplied it is impossible to flexibly be used for multiple pressure
Material；
4) inlet pressure ranges are narrow, generally require decompressor decompression work when inlet pressure is higher, or using excessive
Stream valve, wastes energy, belongs to blind and adds, safety coefficient is not high；
5) need optional equipment electric power and cooling device auxiliary, high cost, easily cause pollution；
6) current no 100mpa high pressure feeding system.
What problem above existed the main reason is that limitation of electrodynamic pump technology and the domestic input in this field and
Research is relatively very few, not high enough to the attention degree of multi-functional, automated system, environmentally friendly machine.
For the problem in correlation technique, effective solution is not yet proposed at present.
Content of the invention
It is an object of the invention to provide a kind of methanol-based fuel high pressure feeder apparatus, disclosure satisfy that methanol different proportion,
Feed under different pressures grade requires, and particularly realizes 100mpa stable material-supplying, compatible system control simultaneously, security monitoring report
Alert multinomial technical requirements, effectively overcome currently available technology above shortcomings.
The purpose of the present invention is to be achieved through the following technical solutions:
A kind of methanol-based fuel high pressure feeder apparatus, including be respectively equipped with the methanol tank of alcohol, water and dimethyl ether, water pot and
Dimethyl ether tank, described methanol tank and water pot are respectively connected with pre- pressure charging system, and described dimethyl ether tank is connected with mixing weighing system, institute
State pre- pressure charging system to be connected with described mixing weighing system, described mixing weighing system successively with pressure charging system and electromotor phase
Connect, and, described pressure charging system and pre- pressure charging system are respectively connected with blowing plant.
Further, described mixing weighing system includes blender, described blender be connected with the switch valve one being in parallel,
Switch valve two and switch valve three, described switch valve one, switch valve two and switch valve three pass through flow controller one, flow respectively
Controller two and flow controller three connect water pot, methanol tank and dimethyl ether tank.
Further, described flow controller one, flow controller two and flow controller three all include effusion meter, stream
Control valve and proportional/integral/derivative pid feedback device.
Further, described pressure charging system includes booster pump, and described booster pump is connected with the mixed fuel of blended device,
And described booster pump connects electromotor, described electromotor connects fuel combination reflux by counterbalance valve.
Further, it is connected in parallel to relief valve and surge tank between described booster pump and electromotor.
Further, described booster pump is Pneumatic booster pump.
Further, it is provided with auto-cool system between described electromotor and pressure charging system.
The invention has the benefit that increased mass flow controller it is achieved that the methanol of different proportion, dimethyl ether and
The mixing of water, and achieve and can regulate and control online；Realize the feed demand of different pressures under high pressure 100mpa, realize one simultaneously
Determine that flow in scope is adjustable, improve the availability of methanol-based fuel；Feeding system output pressure scope is wide, can be directly entered
The energy consumption equipment such as internal combustion engine, need not reduce pressure, reducing energy consumption；Realize, from cooling, independent operating, preventing polluter, realize long-time
Safety and stability reliability service.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention some enforcement
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of methanol-based fuel high pressure feeder apparatus according to embodiments of the present invention；
Fig. 2 is a kind of flow process of the mixing weighing system of methanol-based fuel high pressure feeder apparatus according to embodiments of the present invention
Schematic diagram；
Fig. 3 is that a kind of flow process of the pressure charging system of methanol-based fuel high pressure feeder apparatus according to embodiments of the present invention is illustrated
Figure；
Fig. 4 is a kind of schematic diagram of the electric-control system of methanol-based fuel high pressure feeder apparatus according to embodiments of the present invention.
In figure:
1st, water pot；2nd, methanol tank；3rd, dimethyl ether tank；4th, pre- pressure charging system；5th, mixing weighing system；6th, pressure charging system；7、
Electromotor；8th, blender；9th, switch valve one；10th, switch valve two；11st, switch valve three；12nd, flow controller one；13rd, flow control
Device two processed；14th, flow controller three；15th, booster pump；16th, relief valve；17th, surge tank；18th, counterbalance valve；19th, plc controller；
20th, input module；21st, output module；22nd, industrial computer；23rd, sensor unit.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, broadly fall into present invention protection
Scope.
According to embodiments of the invention, there is provided a kind of methanol-based fuel high pressure feeder apparatus.
As Figure 1-3, a kind of methanol-based fuel high pressure feeder apparatus according to embodiments of the present invention, including being respectively equipped with
The methanol tank 2 of alcohol, water and dimethyl ether, water pot 1 and dimethyl ether tank 3, described methanol tank 2 and water pot 1 are respectively connected with pre- supercharging system
System 4, described dimethyl ether tank 3 is connected with mixing weighing system 5, and described pre- pressure charging system 4 is connected with described mixing weighing system 5
Connect, described mixing weighing system 5 is connected with pressure charging system 6 and electromotor 7 successively, and, described pressure charging system 6 and pre- supercharging
System 4 is respectively connected with blowing plant.
Described pre- pressure charging system 4 is made up of two pneumatic diaphragm pumps, and described pneumatic diaphragm pump downstream is configured with accumulator, rises
To stablizing downstream pressure effect, can preferably ensure flow controller certainty of measurement.
Due to being provided with the dimethyl ether tank 3 of dimethyl ether, itself there is saturated vapor pressure, during 20 DEG C of room temperature, pressure is
0.5mpa, in order that dimethyl ether, first alcohol and water are smoothly sufficiently mixed, needs to increase the water in the methanol in methanol tank 2 and water pot 1
It is depressed into 0.5mpa, is realized by pre- pressure charging system 4, described pre- pressure charging system 4 includes pneumatic diaphragm pump, described pneumatic diaphragm
First alcohol and water is pressurized to 0.5mpa by pump, and the advantage of pneumatic diaphragm pump is compressed air-driven, and without electricity consumption, pressure can be steadily defeated
Go out, pressure oscillation is less.
Described mixing weighing system 5 includes blender 8, and described blender 8 is connected with the switch valve 1 being in parallel, switch
Valve 2 10 and switch valve 3 11, described switch valve 1, switch valve 2 10 and switch valve 3 11 pass through flow controller one respectively
12nd, flow controller 2 13 and flow controller 3 14 connect water pot 1, methanol tank 2 and dimethyl ether tank 3；Described flow control
Device 1 processed, flow controller 2 13 and flow controller 3 13 all include effusion meter, flow control valve and ratio/long-pending
Point/differential pid feedback device.
Described mixing weighing system 5 main by 5 flow controllers and supporting valve pipe fitting, blender 8 forms, flow
Controller is accurately controlled the flow value of each medium species；Described blender 8 can ensure that methanol, dimethyl ether and water are more abundant
Stroke fuel combination evenly, when burning in electromotor 7, fuel value is higher, and contributes to reducing the dirt in exhaust emissions
Dye thing content.
Because methanol is the main fuel of fuel test system, the mixed proportion of dimethyl ether and water is all to be with the flow of methanol
Radix, then be multiplied by suitable proportionality coefficient and carry out mixing match, the burning under each mixed proportion of test dimethyl ether and water is special
Property, thus drawing optimum mixing match.
The flow-control of methanol is completed by described flow controller 2 13, described flow controller 2 13 be by
Mass flowmenter and flow control valve become one, and are additionally provided with pid feedback device inside described flow controller 2 13,
By pid feedback device come real-time adjustment flow value, there is the response time soon, flow more accurately effect.
Wherein, the flow instruction of flow controller is to be inputted by the interface of electric-control system, can also input water simultaneously
With the proportion coefficient of dimethyl ether, after the completion of input, flow-control during system operation can according to the actual flow of methanol at any time
Adjustment water and the flow value of dimethyl ether.
This online in real time proporting system, than traditional hybrid system response speed more faster, mixes evenly,
And avoid the waste of material, cost-effective.
Described pressure charging system 6 includes booster pump 15, and described booster pump 15 is connected with the mixed fuel of blended device 8, and
And described booster pump 15 connects electromotor 7, described electromotor 7 connects fuel combination reflux by counterbalance valve 18；Described increasing
It is connected in parallel to relief valve 16 and surge tank 17 between press pump 15 and electromotor 7；Described booster pump 15 is Pneumatic booster pump, described
Counterbalance valve 18 is electric-controlled type counterbalance valve.
Described pressure charging system 6 mainly includes Pneumatic booster pump, counterbalance valve 18, relief valve 16, relief valve and instrument；Described increasing
Pressure system 6 is mainly downstream engine 7 and provides fuel under high pressure, and supplements fuel consumption at any time；The effect of described counterbalance valve 18 can
Controlled 2% with the pressure oscillation of the fuel under high pressure by entering electromotor 7.
Described pressure charging system 6 is that by Pneumatic booster pump, mixed methanol-based fuel combination is pressurized to internal combustion engine (bavin
Oil machine) operating pressure that needs, and supplement rapidly fuel, described pressure charging system after downstream internal combustion engine (diesel engine) consumes fuel
6 mainly realize specific function by Pneumatic booster pump and electric-controlled type counterbalance valve.
Wherein, described gas boosting pump has the following characteristics that (1) compressed media drives: no produces heat, Mars and spark danger
Danger；(2) inlet pressure range width: can arbitrarily adjust driving frequency and output flow, and inlet pressure；(3) easily realize certainly
Dynamic control: supercharging equipment is reserved with external control port, and when having control signal in external control port, supercharging equipment just has normal work
May, therefore, coordinate control element using outside control mouth, can easily realize supercharging equipment and automatically stop under any predetermined pressure
Machine；Equipment during shutting down Non-energy-consumption, do not produce heat；(4) can continuously stop/start shooting, unrestrictedly, have no adverse effect.
Relatively and electrodynamic pump, Pneumatic booster pump has safe and reliable, without electricity consumption, greatly reduces the danger of test site
Dangerous advantage, and Pneumatic booster pump can frequently start and stop with pressure, more meet the actually used situation of test system.
Described electric-controlled type counterbalance valve has the following characteristics that in order to the combustion characteristics testing methanol-based fuel is it is desirable to test is smart
Degree is higher, and the pressure oscillation in downstream all can impact to the oil consumption of electromotor 7 and combustion characteristics, in order to keep as far as possible
Enter the pressure stability of electromotor 7, by the electric-controlled type counterbalance valve set up, counterbalance valve can be adjusted according to downstream real-time pressure value,
Test different pressures under working condition when need not manually operate, precision is higher.
It is provided with auto-cool system between described electromotor 7 and pressure charging system 6.
As shown in figure 4, this device is additionally provided with electric-control system, described electric-control system includes plc controller 19, described plc control
Device 19 processed is connected to input module 20, output module 21 and industrial computer 22, and described input module 20 connects sensor unit
23, described output module 21 connection traffic controller；This device can be in all elements of remote operating system by electric-control system
Start and stop, and the real time operation situation of monitoring element；Once being in an emergency, system can autostop.
Described plc controller 19 receives, as the core of this system, the signal of telecommunication being derived from sensor unit 23, through conversion
Calculate and then control by output module 21 electromagnetic valve and the effusion meter of each section, will with the control reaching flow and pressure
Ask；Plc air device 19 selects the plc of Omron cp1h-x40dra series, the plc of Omron series to make in industrial control field
Boundless, technology is very ripe.This makes equipment very stable when running, and capacity of resisting disturbance is very strong.Automatically controlled
The hardware of system also includes sensing unit, output module, relay etc..
Described sensor unit 23 is made up of sensor, including pressure, temperature, flow, the different types of biography such as weight
Sensor, is converted to the signal of telecommunication the physical signalling in system, is transferred in plc controller 19.
When specifically used, this system mainly carrys out generation with Methanol Blends (main component is methanol, water and dimethyl ether)
Burn in electromotor as fuel for traditional diesel oil, the combustion characteristics of test Methanol Blends simultaneously assesses fuel combination generation
For the safety of traditional fuel, economy and feasibility analysis, main inclusion water pot 1, methanol tank 2, dimethyl ether tank 3, pre- supercharging
System 4, mixing weighing system 5 and pressure charging system 6 form；Medium in methanol tank 2 and water pot 1 is increased by pre- pressure charging system 4
Pressure (compressed air enters in pre- pressure charging system 4 by blowing plant, as power source) voltage stabilizing；Described pre- pressure charging system
4 effect is water and methanol keeps certain pressure between entrance mixing weighing system, to overcome medium in metering and pipeline
Interior resistance, and keep certain flowing velocity；Dimethyl ether does not need to carry out the physics spy that pre- supercharging is because dimethyl ether itself
Property (volatile) determines dimethyl ether tank interior and carries certain pressure.
After water after pre- supercharging and methanol entrance mixing weighing system 5, according to certain ratio, (ratio is adjustable with dimethyl ether
Section) carry out online mixing, enter pressure charging system 6 after the mixing of each medium after blender 8 stirs；Mixing weighing system
The critical piece of system 5 is the flow transducer of tape controller, can be with real-time control water, methanol and dimethyl ether by this sensor
Flow it is ensured that the composition of fuel combination in pipeline is adjustable, flow is adjustable, and does not result in the wave of fuel combination
Take.
It is in place of described mixing weighing system 5 and the original creation of existing hybrid system now: sensed using flow-control
Replacing existing storage pot type fuel mixing method, flow controller has been internally integrated effusion meter and flow control valve to device, and interior
Portion carries pid feedback control, can according to the aperture of the target instruction target word flow automatic regulation control valve of flow-control effusion meter, and
Adjust this opening value by the value of feedback of effusion meter, thus reaching the dual mesh ground controlling flow and measurement flow.
Fuel combination through stirring enters pressure charging system 6 and is pressurized to engine target value (100mpa) and is starting
Machine 7 keeps pressure output stable in the case of not stopping to consume fuel combination, and the operation principle of described pressure charging system 6 is using compression
Fuel combination is pressurized to engine target value for power by air, but the characteristic due to Pneumatic booster pump and downstream engine
7 do not stop consume, during actual motion, pressure charging system outlet pressure is fluctuating always；For keeping pressure charging system 6 outlet pressure stable,
We increased an automatically controlled counterbalance valve in the exit of pressure charging system 6, surpasses in pressure charging system 6 and electromotor 7 fuel pressure
Cross counterbalance valve 18 setting value when, counterbalance valve 18 can open pressure release, until pressure charging system 6 and electromotor 7 fuel pressure are not
Exceed counterbalance valve 18 setting value；In pressure charging system 6 actual motion, the pressure of the Pneumatic booster pump in pressure charging system 6 and flow
It is all higher than the requirements of electromotor 7, counterbalance valve 18 is constantly in open mode, whole system is in a kind of dynamic balance；
The pressure stability of fuel combination in pressure charging system 6 and electromotor 7 can be kept, and survey when electromotor 7 test needs to change
It is only necessary to change the setting value of automatically controlled counterbalance valve during pressure testing force value, pressure charging system 6 can continue to survey under new pressure condition
Examination.
Whole hardware of this device are installed on four independent unit bottom sleds, and bottom sled is provided with forklift hole, is set with facilitating
Standby mobile；Each unit is internal to comprise some little modules again, and these little modules are fixed on the sled of unit bottom, can be flexible
Dismounting, facilitates the maintenance and repair of equipment；Unit box shell adopts cabinet type making, outside paint baking, and it is convenient to open the door, with convenient
The installation of internal module or maintenance.
All unit internal pipelines adopt stainless steel making (except part drives air pipe), to prevent the corrosion of water；Cabinet
Material carries out antirust treatment, and non-corroding, no coating come off, and in cabinet, exterior skin is smooth, no any delamination warpage；Cabinet bulk
Interior each electric loop over the ground and mutual insulating resistance value, in 15 ~ 35 DEG C of ambient temperature, relative air humidity 45% ~ 75%
When, not less than 20m ω；Each individual electrical loop and can bear 50hz, alternating voltage 1000v each other, lasts 1min and no punctures
Flashover；Each unit casing is easily installed and dismantles.Its door, window reliability locking, equipment will not automatically open up when running, cabinet
Inner panel wall adopts low heat transfer material, smooth surface, smooth, no substantially concavo-convex.
System pipeline meets flow chart requirement, and pipe arrangement is attractive in appearance, reasonable, firmly installs it is easy to demolition, repair, replacement,
Pipeline has good air-tightness, lasts 5min as air seal test and answer ne-leakage phenomenon under 1.05 times of design pressures, all needs to examine
The parts look into, keep in repair, decompose, repaired all have good accessibility, and are measured according to human body, provide suitable maintenance empty
Between, make maintainer have more reasonably maintenance attitude.
This device has carried out modular division, and each module has certain independence, improves interchangeability, the maintenance of product
Property, also save development cost simultaneously；And the method successfully employing Pneumatic booster advanced in the world at present, the method
Flow process is advanced, simple, and host performance is excellent, comprehensive, the source of goods of raw material, components and parts, parts and corollary equipment, quality
Guaranteed, and there is the incomparable explosion-proof performance of motor；Whole system high degree of automation, easy and simple to handle, easy to maintenance,
Starting time is short, work safety, reliable and stable, and complete unit has more perfect automatic monitor system and reliable safety assurance
System, improves the security reliability of system.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of methanol-based fuel high pressure feeder apparatus, including the methanol tank (2), the water pot (1) that are respectively equipped with alcohol, water and dimethyl ether
And dimethyl ether tank (3) is it is characterised in that described methanol tank (2) and water pot (1) are respectively connected with pre- pressure charging system (4), described two
Methyl ether tank (3) is connected with mixing weighing system (5), and described pre- pressure charging system (4) is connected with described mixing weighing system (5),
Described mixing weighing system (5) is connected with pressure charging system (6) and electromotor (7) successively, and, described pressure charging system (6) and
Pre- pressure charging system (4) is respectively connected with blowing plant；Described pressure charging system (6) includes booster pump (15), described booster pump
(15) it is connected with the mixed fuel of blended device (8), and described booster pump (15) connects electromotor (7), described electromotor
(7) fuel combination reflux is connected by counterbalance valve (18)；It is connected in parallel between described booster pump (15) and electromotor (7)
Relief valve (16) and surge tank (17).
2. methanol-based fuel high pressure feeder apparatus according to claim 1 are it is characterised in that described mixing weighing system
(5) include blender (8), described blender (8) is connected with the switch valve one (9) being in parallel, switch valve two (10) and switch valve
Three (11), described switch valve one (9), switch valve two (10) and switch valve three (11) respectively pass through flow controller one (12),
Flow controller two (13) and flow controller three (14) connect water pot (1), methanol tank (2) and dimethyl ether tank (3).
3. methanol-based fuel high pressure feeder apparatus according to claim 2 are it is characterised in that described flow controller one
(12), flow controller two (13) and flow controller three (14) all include effusion meter, flow control valve and ratio/long-pending
Point/differential pid feedback device.
4. methanol-based fuel high pressure feeder apparatus according to claim 1 are it is characterised in that described booster pump (15) is gas
Dynamic booster pump.
5. methanol-based fuel high pressure feeder apparatus as claimed in any of claims 1 to 4 are it is characterised in that described
It is provided with auto-cool system between electromotor (7) and pressure charging system (6).
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| CN201410502556.0A CN104265450B (en) | 2014-09-26 | 2014-09-26 | Methanol-based fuel high-pressure supplying device |
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| CN201410502556.0A CN104265450B (en) | 2014-09-26 | 2014-09-26 | Methanol-based fuel high-pressure supplying device |
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| CN105617899B (en) * | 2016-03-16 | 2017-09-19 | 熊菊莲 | Device for gas-liquid mixed |
| CN105617924B (en) * | 2016-03-16 | 2017-09-19 | 熊菊莲 | Safe and reliable mixing arrangement |
| CN105749775B (en) * | 2016-03-16 | 2017-09-19 | 熊菊莲 | Gas-liquid mixing device |
| CN105617897B (en) * | 2016-03-25 | 2017-09-19 | 熊菊莲 | A kind of blender |
| CN105688703B (en) * | 2016-03-25 | 2017-09-19 | 熊菊莲 | A kind of safe and reliable blender |
| CN108533422A (en) * | 2018-01-23 | 2018-09-14 | 中国第汽车股份有限公司 | A kind of Alcohol engines water mixing spraying system and water mixing injection method |
| WO2021217601A1 (en) * | 2020-04-30 | 2021-11-04 | 南方科技大学 | Compression-ignition type methanol engine combustion system and control method |
| CN111520259B (en) * | 2020-04-30 | 2023-08-18 | 南方科技大学 | Ignition type methanol engine combustion system and control method |
| CN111520258B (en) * | 2020-04-30 | 2023-08-18 | 南方科技大学 | Compression ignition type methanol engine combustion system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5906664A (en) * | 1994-08-12 | 1999-05-25 | Amoco Corporation | Fuels for diesel engines |
| CN101092917A (en) * | 2007-07-21 | 2007-12-26 | 郑国璋 | Automobile fuel supply system |
| 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 |
| CN102127473B (en) * | 2010-01-15 | 2016-08-10 | 北京兰凯博能源科技有限公司 | Ether-base fuel |
| RS57185B1 (en) * | 2012-05-25 | 2018-07-31 | Gane Energy & Resources Pty Ltd | Methods for the preparation and delivery of fuel compositions |
| CN204175427U (en) * | 2014-09-26 | 2015-02-25 | 北京海德利森科技有限公司 | A kind of methanol-based fuel high pressure feeder apparatus |
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