CN1702316A - Dual fuel feed method and system for automobile - Google Patents
Dual fuel feed method and system for automobile Download PDFInfo
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- CN1702316A CN1702316A CN 200510040299 CN200510040299A CN1702316A CN 1702316 A CN1702316 A CN 1702316A CN 200510040299 CN200510040299 CN 200510040299 CN 200510040299 A CN200510040299 A CN 200510040299A CN 1702316 A CN1702316 A CN 1702316A
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- fuel
- gasoline
- aalcohols
- alcohols
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Abstract
This invention relates to an automobile dual-fuel providing method and system. The method applies dual-fuel separate supply, and when the motor operating in different conditions, it mixes alcohols and dual-fuel meeting alcohols maximum adulterating of dynamic demand. The device has a double-circuit fuel supply; one circuit is petrol fuel supply including petrol fuel box, fuel injector and an air damper setting in the air inlet channel of inflow divided manifold; the other circuit is alcohols fuel supply including an alcohols fuel ejector in front of air damper, and an alcohols fuel oil box connecting the ejector. Said invention can reduce petrol consumption greatly, besides, it can increase riding characteristics of car.
Description
Technical field:
The present invention relates to the supply technology of automotive fuel, more specifically say so the supplying method and the supply system of double fuel (gasoline-Aalcohols fuel) are provided to gasoline automobile.
Background technique:
Along with the recoverable amount of automobile constantly increases, the international petroleum price is constantly soaring, and is in the high price operation.As a kind of important strategic resource, the external interdependency fast rise of China's oil, and gasoline is the main consumption rich and influential family of petroleum products, seeks a kind of suitable additional energy, the consumption that reduces oil just seems extremely important.According to China the production technology of abundant in coal resource and ripe alcoholic product is arranged, Aalcohols fuel is progressively brought into use in recent years.On probation such as methanol gasoline in the Shanxi Province, ethanol petrol in Jilin, ground such as Henan, Anhui promote the use of.These technologies all are by the fixed proportion that configures that gasoline and Aalcohols fuel (methyl alcohol or ethanol) is mixed in advance, directly use the fixedly fuel combination of proportions of ingredients then, common ratio is 10%, promptly mixing 10% Aalcohols fuel in gasoline, is exactly to mix 10% ethanol in gasoline such as commercially available E10 fuel.This low-mix than the advantage of ethanol petrol is: motor car engine can not done any adjustment and directly use.But the problem that exists comprises:
1, the storage of the blend gasoline after the preparation has difficulties, the inefficacy etc. such as meeting the easy layering of water.
2, because Aalcohols fuel and gasoline exist obviously differently aspect the combustion characteristic, the use fixedly fuel of proportions of ingredients can only be adopted low-mix ratio about 10%, high slightly mixing than meeting makes automobile can not effectively work in some cases and cause stopping working.Such situation has greatly suppressed the raising of automobile running Economy.Simultaneously,, also exist situations such as climbing is unable inevitably, reduced the rideability of automobile even if adopt low-mix ratio about 10%.A prior defective is exactly that the alternative amount of gasoline is too low.
Summary of the invention:
The present invention is for avoiding above-mentioned existing in prior technology deficiency, a kind of automobile double fuel feeding method and supply system are provided, by reasonable proportioning is provided, significantly improve Economy, the reduction gasoline consumption of automobile running, improve the rideability of automobile, and significantly reduce harmful gas emission in the tail gas.
The technological scheme that technical solution problem of the present invention is adopted is:
The characteristics of automobile double fuel feeding method of the present invention are:
The present invention adopts double fuel independently to supply with, under the different running statees of motor, to satisfy the supply that is mixed of double fuel that alcohols maximum incorporation power demand under carries out alcohols and gasoline in good time.
Automobile double fuel supply system of the present invention, it is characterized in that at the multiple spot electronic fuel injection engine, the fuel supply that in good time is mixed in double loop is set, one the tunnel is that Fuel Petroleum is supplied with, another road is that Aalcohols fuel is supplied with, described Fuel Petroleum is supplied with and is comprised Fuel Petroleum case, gasoline ejector, and in the air introduction channel of inlet manifold closure is set; It is that the Aalcohols fuel sparger was set before closure that described Aalcohols fuel is supplied with, and what be communicated with described Aalcohols fuel sparger is the Aalcohols fuel fuel tank.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the proportioning of alcohols of the present invention and gasoline is dynamic, and this dynamic proportioning can guarantee that gasoline automobile can both keep strong impetus under various running statees, help improving the rideability of automobile.
2, the present invention is mixed satisfying under the power demand with the maximum incorporation of alcohols, can greatly improve the consumption of alcohol, thereby significantly cut down the gasoline consumption.The practice of 5000km automobile running shows that the proportional quantity of methyl alcohol can reach 45%-55%, simultaneously, owing to improve mixing of Aalcohols fuel, has also significantly reduced discharge of harmful gases amount in the vehicle exhaust.
Description of drawings:
Accompanying drawing is a system architecture schematic representation of the present invention.
Number in the figure: 1 methyl alcohol sparger, 2 closures, 3 inlet manifolds, 4 gasoline ejectors, 5 motors, 6 methanol fuel casees, 7 Fuel Petroleum casees.
Embodiment:
Present embodiment adopts double fuel independently to supply with, under motor difference running statees, to satisfy the supply that is mixed of double fuel that alcohols maximum incorporation under the power demand carries out alcohols and gasoline in good time.
In concrete the enforcement, be mixed in good time and supply with and can be undertaken by following technological process:
Aalcohols fuel is through jet atomization, Aalcohols fuel vapour and air mixing that atomizing forms form alcohol-air mixing vapour, enter engine charge disproportionation pipe with alcohol-air mixing vapour, before entering the cylinder intake valve by air inlet disproportionation pipe, alcohol-air mixing vapour mixes with the gasoline of atomizing, form alcohol-gasoline-air double fuel mixed steam, sucked by cylinder and work with this mixed steam.
The Hyundai Motor manufacturing technology extensively adopts motor fuel " EFI " technology, uses vehicle-mounted ECU control, makes more accurate to the automotive fuel supply.Present embodiment can directly utilize this " EFI " technology, and the control technique of vehicle-mounted ECU, and different is " double fuel " supply, promptly increase by a cover Aalcohols fuel supply system in the automobile original oil supply system, and the automobile other parts does not change.Newly-increased system comprises the Aalcohols fuel tank, index gauge and ejecting system etc.Aalcohols fuel system and original oil supply system are two separate systems.They are controlled by vehicle-mounted ECU all, coordination operation respectively under instruction.
System is provided with:
Referring to accompanying drawing, in the present embodiment, the automobile double fuel supply system is at multiple spot electronic fuel injection engine 5, the fuel supply that in good time is mixed in double loop is set, one the tunnel is that Fuel Petroleum is supplied with, another road is that Aalcohols fuel is supplied with, and Fuel Petroleum is supplied with and comprised Fuel Petroleum case 7, the gasoline ejector 4 that is provided with routinely, and in the air introduction channel of inlet manifold 3 closure 2 is set; It is that (inlet that is closure 2 is distolateral) is provided with Aalcohols fuel sparger 1 before closure 2 that Aalcohols fuel is supplied with, and what be communicated with Aalcohols fuel sparger 1 is Aalcohols fuel fuel tank 6.
For producing simple and the consideration that reduces cost, this supply system adopts single-point discharge.
At adopting methyl alcohol-gasoline mixed fuel, motor car engine in the running, the motor-drive pump in the methyl alcohol tank with the methanol fuel force feed to the methyl alcohol sparger.According to the vehicle-mounted ECU instruction, adjust the emitted dose of methyl alcohol in intake duct by the time length that sparger sprays, form methyl alcohol-air mixing vapour.This mixed steam further forms the methyl alcohol-gasoline-air mixing vapour of required proportioning in gasoline multi-point injection district and gasoline mist again, and enters engine cylinder work.The straying quatity of methyl alcohol and gasoline is controlled according to relevant Operational Limits by vehicle-mounted ECU.Such as, automobile can be established few proportioning methanol gasoline mixed steam in cold conditions starting and accelerating sections, and when high engine speeds running or hot running, do not influencing under the engine power characteristic, use high mixture ratio methyl alcohol-gasoline mixed fuel vapour, with Economy that improves automobilism and the consumption that reduces gasoline.
Claims (4)
1, automobile double fuel feeding method is characterized in that adopting double fuel independently to supply with, under the different running statees of motor, to satisfy the supply that is mixed of double fuel that alcohols maximum incorporation power demand under carries out alcohols and gasoline in good time.
2, method according to claim 1, it is characterized in that described double fuel is mixed to supply with is in good time undertaken by following technological process:
Aalcohols fuel is through jet atomization, Aalcohols fuel vapour and air mixing that atomizing forms form alcohol-air mixing vapour, enter engine charge disproportionation pipe with alcohol-air mixing vapour, before entering the cylinder intake valve by air inlet disproportionation pipe, alcohol-air mixing vapour mixes with the gasoline of atomizing, form alcohol-gasoline-air double fuel mixed steam, sucked by cylinder and work with this mixed steam.
3, a kind of supply system of implementing the described method of claim 1, it is characterized in that at multiple spot electronic fuel injection engine (5), the fuel supply that in good time is mixed in double loop is set, one the tunnel is that Fuel Petroleum is supplied with, another road is that Aalcohols fuel is supplied with, described Fuel Petroleum is supplied with and is comprised Fuel Petroleum case (7), gasoline ejector (4), and closure (2) is set in the air introduction channel of inlet manifold (3); It is at closure (2) Aalcohols fuel sparger (1) to be set before that described Aalcohols fuel is supplied with, and what be communicated with described Aalcohols fuel sparger (1) is Aalcohols fuel fuel tank (6).
4, system according to claim 3 is characterized in that described Aalcohols fuel sparger (1) is the single-point EFI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040299 CN1702316A (en) | 2005-05-27 | 2005-05-27 | Dual fuel feed method and system for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510040299 CN1702316A (en) | 2005-05-27 | 2005-05-27 | Dual fuel feed method and system for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1702316A true CN1702316A (en) | 2005-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510040299 Pending CN1702316A (en) | 2005-05-27 | 2005-05-27 | Dual fuel feed method and system for automobile |
Country Status (1)
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| CN (1) | CN1702316A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417802C (en) * | 2006-09-29 | 2008-09-10 | 孙开卷 | Fuel-feeding device of alcohol-gasoline double fuel automobile |
-
2005
- 2005-05-27 CN CN 200510040299 patent/CN1702316A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417802C (en) * | 2006-09-29 | 2008-09-10 | 孙开卷 | Fuel-feeding device of alcohol-gasoline double fuel automobile |
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