CN109723549A - Single cylinder diesel suitable for EGR exhaust recycling - Google Patents
Single cylinder diesel suitable for EGR exhaust recycling Download PDFInfo
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- CN109723549A CN109723549A CN201711041441.6A CN201711041441A CN109723549A CN 109723549 A CN109723549 A CN 109723549A CN 201711041441 A CN201711041441 A CN 201711041441A CN 109723549 A CN109723549 A CN 109723549A
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- Prior art keywords
- single cylinder
- cylinder diesel
- egr valve
- ecu
- valve
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- 238000004064 recycling Methods 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 35
- 239000007789 gas Substances 0.000 abstract description 31
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 22
- 239000001569 carbon dioxide Substances 0.000 abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Abstract
The present invention provides a kind of single cylinder diesels, comprising: EGR valve, water tank and radiator；The tail gas discharging pipe of single cylinder diesel is successively connected through the radiator, water cooling tube, EGR valve with the air inlet of single cylinder diesel；The water cooling tube is arranged in the water tank.The present invention, which is set, first passes through cooling fin for heating power carbon dioxide gas, make 500 DEG C of gases natural air cooled to 200 DEG C, it is placed in water tank again by the water cooling tube, the direct-connected EGR valve of water cooling tube is controlled the opening and closing of EGR valve by ECU, 70 DEG C or so of carbon dioxide gas is entered cylinder combustion by air inlet pipe, do not allow to be also easy to produce carbon distribution in this low-temperature carbon dioxide gas EGR valve, it solves EGR valve in the prior art, especially solenoid valve and is easier to carbon distribution hair fastener, the disastrous effect of zero load also tonifying Qi is brought to engine.
Description
Technical field
The present invention relates to the single cylinder diesels for being suitable for EGR exhaust recycling.
Background technique
It is formally issued on May 16th, 2014 according to State Ministry of Environmental Protection, non-rice habitats and mobile three discharge standard of diesel engine state,
Single cylinder diesel major part dosage only has RMB 1500 in Chinese countryside and undeveloped country, single cylinder diesel complete machine total value
Member or so etc., electronics electric control pump and electronics common rail pump cost price will 1500-1800 member, be not suitable for single cylinder diesel user
It uses and repairs, present invention mainly solves one-cylinder diesel state III discharge standard problems.
Single cylinder engine technology does not have breakthrough to sexually revise over 100 years, and the present invention improves high-strength injection machinery high-pressure oil pump structure, this
The automatically controlled automation control program of the ECU electronics of invention breaks through the domestic single cylinder engine EGR technology that there is no completely and promotes and application, root
The technical field for precisely being mended tail gas (being commonly called as in the industry: carbon dioxide) using ECU automation according to the structure of China's single cylinder diesel, is had
Effect is easily reached three discharge standard of state, can be with four discharge standard of Li Da state.
Summary of the invention
It is hydrocarbon and granular material discharged and generation suitable for being effectively reduced that the technical problem to be solved in the present invention is to provide a kind of
Single cylinder diesel suitable for EGR exhaust recycling.
In order to solve the above-mentioned technical problems, the present invention provides a kind of single cylinder diesels, comprising: EGR valve, water tank and heat dissipation
Device；The tail gas discharging pipe of single cylinder diesel successively through the radiator, water cooling tube, EGR valve and single cylinder diesel air inlet (
That is the air inlet of natural aspiration) it is connected；The water cooling tube is arranged in the water tank.
To be applicable in domestic single-cylinder air-cooled F series, each type single cylinder diesel of R type and S type water cooling series, the present invention cancels
The expensive stainless steel cooler of the general heating power carbon dioxide of our times Multi-Cylinder Diesel Engine, the stainless steel cooler will at least have:
Inlet and outlet pipes two, disengaging tracheae two, such polylinker takes up space more, and high failure rate is not suitable with single cylinder engine application, this hair
The method of bright design one root canal gas supply, first passes through cooling fin for heating power carbon dioxide gas (i.e. the tail gas of single cylinder diesel), allows 500
It DEG C natural air cooled to 200 DEG C of gas, is placed in water tank again by the water cooling tube, water cooling tube is a stainless steel tube, water cooling tube
Direct-connected EGR valve controls the opening and closing of EGR valve by ECU, and 70 DEG C or so of carbon dioxide gas is entered cylinder combustion by air inlet pipe
It burns, does not allow to be also easy to produce carbon distribution in this low-temperature carbon dioxide gas EGR valve, solve EGR valve in the prior art, especially solenoid valve
It is easier to carbon distribution hair fastener, the disastrous effect of zero load also tonifying Qi is brought to engine.
Using single cylinder engine discharge capacity of the invention from 0.24L-1.47L etc., because of air compensation and gas temperature difference, therefore design
Radiator volume and capacity are also different.
EGR component is arranged between flywheel and exhaust pipe, does not influence interface dimensions on the outside of engine, just with match.
The single cylinder diesel further includes ECU, and the ECU is for automatically controlling EGR valve.EGR valve is motor valve, solenoid valve
And vacuum-driven valve.
As the another embodiment of EGR valve, EGR valve includes: that vacuum gooster pump, vacuum valve are connected with the ECU
Electrical pressure regulator；Vacuum gooster pump is connected through electrical pressure regulator with the vacuum valve；The tail gas discharging pipe is successively
It is connected through radiator, water cooling tube, vacuum valve with the air inlet of single cylinder diesel.
As F Series Air-cooled Diesel, and air cooling equipment is equipped on the radiator.
Further preferred scheme is that single cylinder diesel further includes cylinder head, and the air intake duct in the cylinder head is vortex spiral shell
Revolve shape；Raising air intake duct induction air flow ratio ratio is 3.2 seconds/meter, and reduction induction swirl ratio pressure is 2.1/Pa, the spray in the cylinder head
For the spray angle in oily device hole between 17-17.5 °, the outlet of oil injector hole offsets up 9mm in inlet and exhaust valve direction, effectively drops
Low CH is hydrocarbon and PM2.5 is granular material discharged and generates.
Further preferred scheme is single cylinder diesel further include: is connected with ECU: for detecting single cylinder diesel
The speed probe of the speed of mainshaft, the accelerator open degree sensor for detecting single-cylinder diesel engine throttle aperture are used to program ECU
PC interface, the fault detector for showing fault message；Into the radiator tail gas through the water tank natural cooling,
To realize CO2Gas hot-fluid water cooling reduces the generation of EGR valve carbon deposit.
Design considerations of the present invention, speed probe and accelerator open degree sensor CO2Control tail gas (CO2: carbon dioxide) precisely
Air compensation.
Each load condition revolving speed is obtained to obtain by ECU, single cylinder diesel is not mended in no-load speed and low speed 1200r/min
Carbon dioxide gas engine examines engine load operating condition in 1200-2200 revolving speed, according to load condition speed specific fuel consumption
Data, determine EGR valve opens and closes air inflow, rationally effectively to fill into appropriate carbon dioxide, because only in accordance with load speed
Specific fuel consumption and no-load speed specific fuel consumption, it is inaccurate for foundation, therefore to increase accelerator open degree sensor device.
Present invention design accelerator open degree sensor precisely mends tail gas and (is commonly called as: carbon dioxide) tolerance in industry.
Single cylinder diesel mostly uses governor lever and speed regulation sliding plate, centrifugal fly-weight formula structure, governor lever tail portion spacing
It is set as 100mm with gear chamber cover spacing.The present invention, apart from aperture, calculates the accelerator open degree that each load condition generates according to throttle
Different distance, oil mass is bigger, and benefit carbon dioxide gas is more, otherwise air compensation is fewer, and no-load speed does not mend carbon dioxide gas.ECU
Sufficiently identification load, accelerator open degree distance reaches automation in conjunction with speed probe and precisely mends carbon dioxide airway dysfunction.The present invention
It is easily reached state's III discharge standard, once again precisely up to four discharge standard of state.
Of the invention is used for single cylinder diesel for EGR first, and the ECU of single cylinder diesel automatically controls EGR exhaust recycling,
Reach and precisely fill into heating power carbon dioxide gas, reaching reduces NO1X NO_x formation and discharge, reach state's III standard, this
The manufacturing cost of invention is only electronics electric control pump, the 30% of electronics common rail pump, it is mating to be applicable in vast rural area non-rice habitats agricultural machinery,
Tractor, tricycle etc. move purposes, this diesel engine, which retains, optimizes original each portion's components of diesel engine, retain outside original diesel engine
It sees volume and interface dimensions is constant.Great advantage of the present invention is " no electricity can also be run ", will not lose diesel engine because of fault and set
In farmland.
Technical effect: because of single cylinder diesel small volume, the installation dimension of EGR valve and radiator, without departing from original diesel oil
Body accumulates interface, specifically has: EGR valve and radiator, ECU control system and harness.The system mounting location is ingenious in design, is convenient for
Exhaust gas and hot gas filtration enter air inlet pipe, do not increase any interface dimensions of diesel engine appearance, beautiful, generous, economical and practical, fit
It is matched with tricycle, tractor all kinds of haulage vehicles, improves engine and match range.
The water cooling tube is arranged in the water tank, avoids water cooling pipe breakage, it is ensured that the reliability used, so that
Product is whole more succinct, reduces exposed parts and components.
The present invention drives EGR valve by ECU, and purified, cooling partial tail gas is effectively entered cylinder combustion, is effectively controlled
The aperture of EGR valve processed sucks tail gas mode by air inlet pipe naturally, precisely fills into when each operating condition after required cold filtration
Nitrogen oxides NO is effectively reduced in tail gas, comprehensive combustion1The generation and discharge of X.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the single cylinder diesel in embodiment；
Fig. 2 is the EGR exhaust recycling schematic diagram of the single cylinder diesel in embodiment.
Specific embodiment
Embodiment 1
A kind of single cylinder diesel, comprising: EGR valve, water tank and radiator；It is characterized by:
The tail gas discharging pipe of single cylinder diesel successively through the radiator, water cooling tube, EGR valve and single cylinder diesel air inlet phase
Even；The water cooling tube is arranged in the water tank.
Radiator is between flywheel and exhaust pipe, and is fixed on the outside of the body of water tank lower end by hanger.
The single cylinder diesel further includes ECU, and the ECU is for automatically controlling EGR valve.
Single cylinder diesel further includes cylinder head, and the air intake duct in the cylinder head is swirling helical shape；Spray in the cylinder head
For the spray angle in oily device hole between 17-17.5 °, the outlet of oil injector hole deviates 9mm, high-strength injection to exhaust valve direction
100Mpa high-pressure oil pump improves fuel-oil atmozation, is effectively reduced that CH is hydrocarbon and PM2.5 is granular material discharged with generation.
Design considerations speed probe of the present invention controls carbon dioxide air compensation.
EGR valve is motor valve or solenoid valve.And the radiator is the fin radiator of aluminum.
When work, ECU obtains the spindle speed signal and governor lever accelerator open degree distance of starter toothed wheel tachometer disc, will
Load accelerator open degree distance is set as 100 millimeters, according to each operating condition Speed Fuel Consumption of load than data be foundation, it is automatic by ECU
Change programming technique, set the aperture 0-6mm of EGR valve valve rod, then by multiple bench test, record each operating condition EGR valve aperture into
Row check and correction, allows the required CO under each steady state condition state of engine2Amount, reaches NO1X equilibrium valve EGR in load condition
The aperture that valve opens reaches automation and precisely fills into CO2Amount, is effectively reduced NO1The generation of X and discharge (CO when no-load speed2It mends
Enter to be set as zero).
Embodiment 2
On the basis of embodiment 1, the single cylinder diesel of the present embodiment has following modification:
EGR valve includes: the electrical pressure regulator that vacuum gooster pump, vacuum valve are connected with the ECU；Vacuum gooster pump is through electronics
Pressure regulator is connected with the vacuum valve；The tail gas discharging pipe is successively through radiator, water cooling tube, vacuum valve and one-cylinder diesel
The air inlet mouth of pipe of machine is connected.
The output power of balance axle end and cam shaft end design vacuum pump under diesel engine, is arranged vacuum in gear chamber capping
Pressure pump allows the vacuum degree of EGR valve up to 0.33-0.56MPa, and by electrical pressure regulator, ECU control vacuum valve is opened
Degree, fills into exhaust gas CO automatically2Tolerance, using speed probe and accelerator open degree sensor, in different load operating condition according to " speed
Spend oil consumption ratio ", the data of relevant parameter are obtained by combining bench test actual measurement EGR valve aperture to carry out check and correction.
To reach, all kinds of farm implements of adaptation are mobile and fixed-purpose, the application do not increase former diesel engine interface contour ruler
It is very little, two kinds of EGR valve mounting hung racks are designed at air inlet pipe, and radiator hanger is designed between flywheel and exhaust pipe, allows CO2Temperature
Directly reach 70-80 degree, it is therefore an objective to which an air inlet pipe does not increase former diesel engine interface dimensions from exhaust outlet to EGR valve air inlet.
The mating and mobile purposes vehicle of all kinds of agricultural machinery power is more convenient to match.
Embodiment 3
On the basis of embodiment 1 or 2, the single cylinder diesel of the present embodiment has following modification:
Air cooling equipment is equipped on the radiator.
Claims (5)
1. a kind of single cylinder diesel, including EGR valve, water tank and radiator；It is characterized by:
The tail gas discharging pipe of single cylinder diesel successively through the radiator, water cooling tube, EGR valve and single cylinder diesel air inlet phase
Even；
The water cooling tube is arranged in the water tank.
2. single cylinder diesel according to claim 1, it is characterised in that further include ECU, the ECU is for automatically controlling EGR
Valve, EGR valve are motor valve or solenoid valve.
3. single cylinder diesel according to claim 1 or 2, which is characterized in that the radiator is equipped with air cooling equipment.
4. single cylinder diesel according to claim 1, which is characterized in that further include ECU, the ECU is for automatically controlling EGR
Valve, EGR valve include: the electrical pressure regulator that vacuum gooster pump, vacuum valve are connected with the ECU；Vacuum gooster pump is through electronics
Pressure regulator is connected with the vacuum valve.
5. single cylinder diesel according to claim 1, which is characterized in that
Single cylinder diesel further includes being connected with ECU: for detecting the speed probe of the speed of mainshaft of single cylinder diesel, being used for
Detect the accelerator open degree sensor of single-cylinder diesel engine throttle aperture, the PC interface for programming to ECU, for showing fault message
Fault detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041441.6A CN109723549A (en) | 2017-10-30 | 2017-10-30 | Single cylinder diesel suitable for EGR exhaust recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041441.6A CN109723549A (en) | 2017-10-30 | 2017-10-30 | Single cylinder diesel suitable for EGR exhaust recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109723549A true CN109723549A (en) | 2019-05-07 |
Family
ID=66292822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711041441.6A Pending CN109723549A (en) | 2017-10-30 | 2017-10-30 | Single cylinder diesel suitable for EGR exhaust recycling |
Country Status (1)
| Country | Link |
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| CN (1) | CN109723549A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006300025A (en) * | 2005-04-25 | 2006-11-02 | Isuzu Motors Ltd | Diesel engine |
| CN101086237A (en) * | 2006-06-06 | 2007-12-12 | 常州星尼韦尔电器有限公司 | Diesel exhaust recirculation system |
| CN201202551Y (en) * | 2008-06-10 | 2009-03-04 | 上海理工大学 | Diesel throttle valve type EGR system control apparatus |
| CN201358851Y (en) * | 2009-03-05 | 2009-12-09 | 江苏星璐电器有限公司 | Exhaust Gas Recirculation (EGR) System of a positive pressure-type diesel |
| CN104595064A (en) * | 2014-12-22 | 2015-05-06 | 中国第一汽车股份有限公司 | Diesel single-cylinder machine EGR implementation device and EGR implementation method |
-
2017
- 2017-10-30 CN CN201711041441.6A patent/CN109723549A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006300025A (en) * | 2005-04-25 | 2006-11-02 | Isuzu Motors Ltd | Diesel engine |
| CN101086237A (en) * | 2006-06-06 | 2007-12-12 | 常州星尼韦尔电器有限公司 | Diesel exhaust recirculation system |
| CN201202551Y (en) * | 2008-06-10 | 2009-03-04 | 上海理工大学 | Diesel throttle valve type EGR system control apparatus |
| CN201358851Y (en) * | 2009-03-05 | 2009-12-09 | 江苏星璐电器有限公司 | Exhaust Gas Recirculation (EGR) System of a positive pressure-type diesel |
| CN104595064A (en) * | 2014-12-22 | 2015-05-06 | 中国第一汽车股份有限公司 | Diesel single-cylinder machine EGR implementation device and EGR implementation method |
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Application publication date: 20190507 |