CN104358643A - Electronic control diesel and methanol dual-fuel injection system of diesel internal combustion engine - Google Patents
Electronic control diesel and methanol dual-fuel injection system of diesel internal combustion engine Download PDFInfo
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- CN104358643A CN104358643A CN201410595252.3A CN201410595252A CN104358643A CN 104358643 A CN104358643 A CN 104358643A CN 201410595252 A CN201410595252 A CN 201410595252A CN 104358643 A CN104358643 A CN 104358643A
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- diesel
- methyl alcohol
- diesel oil
- efi
- methanol
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention relates to an electronic control diesel and methanol dual-fuel injection system of a diesel internal combustion engine. The system comprises a diesel supply unit, a methanol supply unit, an ECU (electronic control unit), diesel electronic nozzles and methanol electronic nozzles, wherein a diesel electronic nozzle and a methanol electronic nozzle are arranged in a group; the methanol electronic nozzles are formed in a gas inlet pipe; an electronic injection control lead wire of the diesel electronic nozzle in each group is connected with that of the methanol electronic nozzle in the group in parallel and then is connected with the corresponding electronic injection signal output end of the ECU. According to the dual-fuel injection system, the operations of the diesel electronic nozzles and the methanol electronic nozzles are simultaneously controlled by the ECU, so that methanol and diesel can be reasonably combusted in an existing diesel internal combustion engine; due to the use of the system, methanol can be used for replacing more than 30% of diesel, and meanwhile, the pollutant discharge of the diesel internal combustion engine is reduced by more than 80%.
Description
Technical field
The invention belongs to the fuel supply system of diesel engine, be specifically related to the dual fuel injection system that a kind of diesel oil and methyl alcohol share the EFI control signal of diesel engine EFI controller ECU.
Technical background
The development of automobile product is bringing life easily simultaneously to the mankind, consume non-renewable petroleum resources in a large number, and among the living environment a large amount of pollutant being discharged into the mankind.Solve this two large problems, the internal-combustion engine fresh fuel of petroleum replacing must be found as early as possible, use this fresh fuel also significantly must reduce the emission level of internal-combustion engine pollutant.Methyl alcohol is the liquid clean fuel that raw material is produced with coal and straw, and price is only 30% of diesel oil, and methyl alcohol pollutant of discharging after cylinder of internal-combustion engine burning work done is 15% of diesel oil.The technology path that prior art methyl alcohol diesel oil substitute is taked is, methyl alcohol and diesel blend is made to become methanol diesel-oil by additive, methanol diesel-oil is added the diesel fuel tanks of automobile, adopt the diesel pump of existing automobile, diesel-oil filter and pipeline, methanol diesel-oil is supplied to diesel engine electric injection system and sprays into cylinder compression burning.Because methyl alcohol is a kind of strong solvent, can dissolve the rubber part in the diesel pump of existing automobile, diesel-oil filter and diesel pipeline and plastic part, blocking diesel pipeline and nozzle, cause diesel engine to damage; The gasification latent heat of methyl alcohol is 10 times of diesel oil simultaneously, and DCI direct cylinder injection can cause combustion temperature to decline to a great extent, and reduces combustion efficiency, causes diesel engine cisco unity malfunction.Therefore, fail so far to realize industrialized development with the new-energy automobile of the liquid fuel diesel oil substitute of this inexpensive clean of methyl alcohol.
Summary of the invention
In order to the problem that the methanol diesel-oil solving prior art cannot use, by architecture advances, the invention provides a kind of diesel engine electronic control diesel oil and methyl alcohol dual fuel injection system.
Concrete technological scheme is as follows:
Comprise diesel oil feed unit, methyl alcohol feed unit, internal combustion cylinder, cylinder head, diesel oil electronics nozzle, methyl alcohol electronics nozzle, diesel oil distribution piping, methyl alcohol distribution piping, suction tude, diesel oil EFI pilot, methyl alcohol EFI pilot, EFI controller ECU; Described diesel oil feed unit, diesel oil distribution piping are connected successively with diesel oil electronics nozzle; Described methyl alcohol feed unit, methyl alcohol distribution piping are connected successively with methyl alcohol electronics nozzle; It is characterized in that, described EFI controller ECU is connected with methyl alcohol electronics nozzle with diesel oil electronics nozzle with methyl alcohol EFI pilot respectively by diesel oil EFI pilot; Described methyl alcohol electronics nozzle is arranged in suction tude; Described diesel oil electronics nozzle is arranged on diesel engine cylinder head, and described EFI controller ECU is provided with EFI control signal output terminal; Described diesel oil EFI pilot is connected with the EFI control signal output terminal corresponding to EFI controller ECU after the parallel connection of methyl alcohol EFI pilot, and the EFI control signal of EFI controller ECU controls diesel oil electronics nozzle ejection diesel oil, methyl alcohol electronics nozzle ejection methyl alcohol simultaneously.
Described diesel oil feed unit comprises diesel fuel tanks, diesel-oil filter, fuel pump and common rail pipe; Import and the described fuel pump of described diesel-oil filter pass through pipeline communication; Diesel-oil filter outlet is connected with diesel common rail pipe; Described diesel common rail pipe is connected with diesel oil distribution piping.
Described methyl alcohol feed unit comprises methanol tank, methyl alcohol filter cleaner, methanol pump and common rail pipe; Described methanol pump arranges outside methanol tank; Import and the described methanol pump of described methyl alcohol filter cleaner pass through pipeline communication; The outlet of methyl alcohol filter cleaner is connected with methyl alcohol common rail pipe; Described methyl alcohol common rail pipe is connected with methyl alcohol distribution piping.
One group is formed by a diesel oil electronics nozzle and a methyl alcohol electronics nozzle, wherein methyl alcohol electronics nozzle is installed in the suction tude of respective cylinder, the EFI pilot often organizing diesel oil electronics nozzle is connected with the EFI control signal output terminal corresponding to EFI controller ECU after the EFI pilot parallel connection of methyl alcohol electronics nozzle, namely controls diesel oil electronics nozzle ejection diesel oil, methyl alcohol electronics nozzle ejection methyl alcohol by the EFI control signal of EFI controller ECU simultaneously.
The present invention by installing methyl alcohol electronics nozzle in the suction tude of existing diesel engine, methyl alcohol is sprayed in suction tude and after homogeneous gasification, enters cylinder, at compression stroke latter stage and the diesel oil mixed combustion spraying into cylinder, diesel oil electronics nozzle and methyl alcohol electronics nozzle are controlled to spray by same EFI controller ECU, achieve methyl alcohol and the Reasonable Combustion of diesel oil on existing diesel engine.Use this system with methyl alcohol diesel oil substitute more than 30% on prior art diesel engine, can make the pollutant discharge minimizing more than 80% of diesel engine simultaneously.
Specifically, there is following advantage:
1. methyl alcohol can substitute the diesel oil of about 30%; Conservation.
2. after spraying into methyl alcohol, diesel engine operation situation condition is obviously improved: vibrations reduce, noise reduces, and appropriate methyl alcohol enters cylinder and improves burning situation, improves the efficiency of motor.
3. exhaust emissions declines to a great extent.Free radical rearrangement is from 3.25(national regulations 3.0) drop to 0.58, the pollutant of exhaust emissions decreases 82.2%.
4. fuel cost declines.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Number in the figure:
1. diesel oil feed unit, 2. methyl alcohol feed unit, 3. internal combustion cylinder, 4. cylinder head, 5. diesel oil electronics nozzle, 6. methyl alcohol electronics nozzle, 7. diesel oil distribution piping, 8. methyl alcohol distribution piping, 9. suction tude, 10. diesel oil EFI pilot, 11. methyl alcohol EFI pilots, 12. EFI controller ECU.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
See Fig. 1, comprise diesel oil feed unit 1, methyl alcohol feed unit 2, diesel engine cylinder 3, cylinder head 4, diesel oil electronics nozzle 5, methyl alcohol electronics nozzle 6, diesel oil distribution piping 7, methyl alcohol distribution piping 8, suction tude 9, diesel oil EFI pilot 10, methyl alcohol EFI pilot 11, EFI controller ECU12; Described diesel oil feed unit 1, diesel oil distribution piping 7 are connected successively with diesel oil electronics nozzle 6; Described methyl alcohol feed unit 2, methyl alcohol distribution piping 8 are connected successively with methyl alcohol electronics nozzle 6; Described EFI controller ECU12 is connected with methyl alcohol electronics nozzle 6 with diesel oil electronics nozzle 5 with methyl alcohol EFI pilot 11 respectively by diesel oil EFI pilot 10; Described methyl alcohol electronics nozzle 6 is arranged in suction tude 9; Described diesel oil electronics nozzle 5 is arranged on diesel engine cylinder head 4; Described EFI controller ECU12 is provided with EFI control signal output terminal; After described diesel oil EFI pilot 10 is in parallel with methyl alcohol EFI pilot 11, the EFI control signal output terminal corresponding to EFI controller ECU12 is connected, and the EFI control signal of EFI controller ECU12 controls diesel oil electronics nozzle 5 simultaneously and sprays diesel oil, methyl alcohol electronics nozzle ejection 6 methyl alcohol; Described diesel oil feed unit 1 comprises diesel fuel tanks, diesel-oil filter, fuel pump and common rail pipe; Import and the described fuel pump of described diesel-oil filter pass through pipeline communication; Diesel-oil filter outlet is connected with diesel common rail pipe; Described diesel common rail pipe is connected with diesel oil distribution piping 7; Described methyl alcohol feed unit 2 comprises methanol tank, methyl alcohol filter cleaner, methanol pump and common rail pipe; Described methanol pump arranges outside methanol tank; Import and the described methanol pump of described methyl alcohol filter cleaner pass through pipeline communication; The outlet of methyl alcohol filter cleaner is connected with methyl alcohol common rail pipe; Described methyl alcohol common rail pipe is connected with methyl alcohol distribution piping 8.
By installing methyl alcohol electronics nozzle in the suction tude of existing diesel engine, methyl alcohol is sprayed in suction tude and after homogeneous gasification, enters cylinder, at compression stroke latter stage and the diesel oil mixed combustion spraying into cylinder, diesel oil electronics nozzle and methyl alcohol electronics nozzle are controlled to spray by same EFI controller ECU, achieve methyl alcohol and the Reasonable Combustion of diesel oil on existing diesel engine.
Claims (5)
1. diesel engine electronic control diesel oil and methyl alcohol dual fuel injection system, comprises diesel oil feed unit (1), methyl alcohol feed unit (2), diesel engine cylinder (3), cylinder head (4), diesel oil electronics nozzle (5), methyl alcohol electronics nozzle (6), diesel oil distribution piping (7), methyl alcohol distribution piping (8), suction tude (9), diesel oil EFI pilot (10), methyl alcohol EFI pilot (11), EFI controller ECU(12); Described diesel oil feed unit (1), diesel oil distribution piping (7) are connected successively with diesel oil electronics nozzle (6); Described methyl alcohol feed unit (2), methyl alcohol distribution piping (8) are connected successively with methyl alcohol electronics nozzle (6); It is characterized in that, described EFI controller ECU(12) be connected with methyl alcohol electronics nozzle (6) with diesel oil electronics nozzle (5) respectively with methyl alcohol EFI pilot (11) by diesel oil EFI pilot (10); Described methyl alcohol electronics nozzle (6) is arranged in suction tude (9); Described diesel oil electronics nozzle (5) is arranged on diesel engine cylinder head (4).
2. diesel engine electronic control diesel oil as claimed in claim 1 and methyl alcohol dual fuel injection system, is characterized in that, described EFI controller ECU(12) be provided with EFI control signal output terminal; With EFI controller ECU(12 after described diesel oil EFI pilot (10) and methyl alcohol EFI pilot (11) are in parallel) corresponding EFI control signal output terminal is connected, EFI controller ECU(12) EFI control signal control diesel oil electronics nozzle (5) injection diesel oil, methyl alcohol electronics nozzle (6) injection methyl alcohol simultaneously.
3. diesel engine electronic control diesel oil as claimed in claim 1 and methyl alcohol dual fuel injection system, it is characterized in that, this system is applicable to natural inflow diesel engine and turbo-charging diesel internal-combustion engine.
4. diesel engine electronic control diesel oil as claimed in claim 1 and methyl alcohol dual fuel injection system, it is characterized in that, described diesel oil feed unit (1) comprises diesel fuel tanks, diesel-oil filter, fuel pump and common rail pipe; Import and the described fuel pump of described diesel-oil filter pass through pipeline communication; Diesel-oil filter outlet is connected with diesel common rail pipe; Described diesel common rail pipe is connected with diesel oil distribution piping (7).
5. diesel engine electronic control diesel oil as claimed in claim 1 and methyl alcohol dual fuel injection system, it is characterized in that, described methyl alcohol feed unit comprises methanol tank, methyl alcohol filter cleaner, methanol pump and methyl alcohol common rail pipe; Described methanol pump arranges outside methanol tank; Import and the described methanol pump of described methyl alcohol filter cleaner pass through pipeline communication; The outlet of methyl alcohol filter cleaner is connected with methyl alcohol common rail pipe; Described methyl alcohol common rail pipe is connected with methyl alcohol distribution piping (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410595252.3A CN104358643A (en) | 2014-10-30 | 2014-10-30 | Electronic control diesel and methanol dual-fuel injection system of diesel internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410595252.3A CN104358643A (en) | 2014-10-30 | 2014-10-30 | Electronic control diesel and methanol dual-fuel injection system of diesel internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104358643A true CN104358643A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410595252.3A Pending CN104358643A (en) | 2014-10-30 | 2014-10-30 | Electronic control diesel and methanol dual-fuel injection system of diesel internal combustion engine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635861A1 (en) * | 1996-03-31 | 1997-10-16 | Gerkinsmeyer Normann | Fuelling system for diesel engine |
| US20110088657A1 (en) * | 2008-04-24 | 2011-04-21 | Toyota Jidoshia Kabushiki Kaishia | Multi-fuel internal combustion engine |
| CN202628353U (en) * | 2012-06-20 | 2012-12-26 | 宋海城 | Electronic control double-fuel injection system for gasoline engine |
| CN203783737U (en) * | 2013-09-30 | 2014-08-20 | 赵永胜 | Diesel and alcohol fuel injection and control system of diesel internal combustion engine |
| CN204226079U (en) * | 2014-10-30 | 2015-03-25 | 宋海城 | Diesel engine electronic control diesel oil and methyl alcohol dual fuel injection system |
-
2014
- 2014-10-30 CN CN201410595252.3A patent/CN104358643A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635861A1 (en) * | 1996-03-31 | 1997-10-16 | Gerkinsmeyer Normann | Fuelling system for diesel engine |
| US20110088657A1 (en) * | 2008-04-24 | 2011-04-21 | Toyota Jidoshia Kabushiki Kaishia | Multi-fuel internal combustion engine |
| CN202628353U (en) * | 2012-06-20 | 2012-12-26 | 宋海城 | Electronic control double-fuel injection system for gasoline engine |
| CN203783737U (en) * | 2013-09-30 | 2014-08-20 | 赵永胜 | Diesel and alcohol fuel injection and control system of diesel internal combustion engine |
| CN204226079U (en) * | 2014-10-30 | 2015-03-25 | 宋海城 | Diesel engine electronic control diesel oil and methyl alcohol dual fuel injection system |
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Application publication date: 20150218 |