CN109252988A - A kind of gasoline single cylinder engine EGR realization device and its application method - Google Patents
A kind of gasoline single cylinder engine EGR realization device and its application method Download PDFInfo
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- CN109252988A CN109252988A CN201811066010.XA CN201811066010A CN109252988A CN 109252988 A CN109252988 A CN 109252988A CN 201811066010 A CN201811066010 A CN 201811066010A CN 109252988 A CN109252988 A CN 109252988A
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- Prior art keywords
- egr
- pressure
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- stabilizing
- air inlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/33—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage controlling the temperature of the recirculated gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/37—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with temporary storage of recirculated exhaust gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention belongs to engine test technical field, in particular to a kind of gasoline single cylinder engine EGR realization device and its application method；Multi-Cylinder Diesel Engine difference EGR reflux type is simulated using the pressure at expulsion of exhaust back-pressure regulating valve control gasoline single cylinder engine, using EGR valve control EGR regurgitant volume to control EGR rate, EGR reflux temperature is adjusted using EGR cooling sea water regulating valve, to realize the EGR implementation of single cylinder engine simulation Multi-Cylinder Diesel Engine, and which can also allow EGR reflux, EGR rate control and EGR temperature control to decouple with engine operation condition.
Description
Technical field
The invention belongs to engine test technical field, in particular to a kind of gasoline single cylinder engine EGR realization device and its make
Use method.
Background technique
Since environmental pollution is got worse, energy crisis grows in intensity, thus automobile uses low pollution energy-saving engine one
It is directly government and the target of professional person.Therefore, it reduces the discharge of engine, improve its fuel economy also just as interior at present
The task of top priority of combustion engine worker.
Exhaust gas recycles application of the EGR technology in gasoline engine and is being gradually expanded, and conventional gasoline machine can use EGR skill
Art reduces Smaller load pumping loss, reduces big load delivery temperature, and compression ignition petrol engine can use external EGR and adjust combustion phase
Expand the use scope of compression ignition, the EGR implementation of multi-cylinder petrol engine is divided into two kinds, and one is low pressure EGRs, and one is height
EGR, the exhaust gas recirculation that low pressure EGR uses exhaust back pressure to realize are pressed, high pressure EGR is to adjust turbocharger to realize exhaust gas recirculation.
An important tool of the gasoline single cylinder engine as gasoline combustion systems development process, is important to notice that combustion process, mainly
Air inlet system and exhaust system it is difficult to realize matched with Multi-Cylinder Diesel Engine, so the unsuitable gasoline single cylinder engine of the EGR implementation of Multi-Cylinder Diesel Engine product.
Summary of the invention
In order to overcome above-mentioned deficiency, for the particularity of gasoline single cylinder engine, it is real that the present invention provides a kind of gasoline single cylinder engine EGR
Existing device and its application method can make gasoline single cylinder engine and Multi-Cylinder Diesel Engine EGR implementation having the same, it can be achieved that EGR
Reflux, EGR temperature control and EGR rate are controllable.
A kind of gasoline single cylinder engine EGR realization device, including gasoline single cylinder engine 1, gas exhaust piping 2, exhaust tube of pressure-stabilizing 3, exhaust
Back pressure regulating valve 4, cooler for recycled exhaust gas 6, EGR valve 9 and air inlet tube of pressure-stabilizing 12, wherein exhaust 3 one end of tube of pressure-stabilizing and 2 phase of gas exhaust piping
Connection, the other end and 4 piping connection of exhaust back pressure regulating valve, gas exhaust piping 2 simultaneously also with the exhaust outlet of gasoline single cylinder engine 1 and
Piping connection is distinguished in one end of cooler for recycled exhaust gas 6, wherein setting on the gas exhaust piping 2 between exhaust tube of pressure-stabilizing 3 and gasoline single cylinder engine 1
It is equipped with exhaust sampling port 19,6 other end of cooler for recycled exhaust gas and 12 piping connection of air inlet tube of pressure-stabilizing, air inlet tube of pressure-stabilizing 12 is gone back and gasoline
1 air inlet piping connection of single cylinder engine, and it is disposed with mixed gas sampling mouth 15, intake-air throttle valve from right to left on the pipeline
16, third temperature sensor 17 and the 4th pressure sensor 18；
EGR valve 9 is mounted on the pipeline between cooler for recycled exhaust gas 6 and air inlet tube of pressure-stabilizing 12, and is additionally provided on the pipeline
One temperature sensor 10 and first pressure sensor 11 are provided with EGR cooling water inlet 5 and EGR cooling water on cooler for recycled exhaust gas 6
8, EGR cooling sea water regulating valve 7 is exported to be arranged on EGR cooling water outlet 8；Second temperature sensing is provided on air inlet tube of pressure-stabilizing 12
Device 13 and second pressure sensor 14.
Present invention simultaneously provides a kind of a kind of above-mentioned gasoline single cylinder engine EGR realization device of application realize control EGR reflux,
The method of EGR rate and EGR temperature, the specific method is as follows:
It first has to realize EGR reflux, controls exhaust back pressure regulating valve 4 using pid control mode, make to be vented in tube of pressure-stabilizing 3
Pressure be more than air inlet tube of pressure-stabilizing 12 in pressure, realize exhaust gas recirculation；
The temperature of its secondary control EGR, EGR temperature are also to control EGR cooling sea water regulating valve 7 by PID mode to realize,
PID detection temperature is derived from the first temperature sensor 10, guarantee temperature range at the first temperature sensor 10 45-120 DEG C it
Between；
EGR rate is finally controlled, the aperture of EGR valve 9 is manually adjusted by slip rheostatic regulator, control enters air inlet pressure stabilizing
The exhaust gas flow of cylinder 12,9 aperture of EGR valve increase, then increase into the exhaust gas flow of air inlet tube of pressure-stabilizing 12, and EGR rate increases, EGR
9 aperture of valve reduces, then reduces into the exhausted air quantity of air inlet tube of pressure-stabilizing 12, and EGR rate reduces, to reach the mesh of control EGR rate
, EGR rate changes between 0-50%；
Wherein the calculating of EGR rate is the CO by measuring from mixed gas sampling mouth 15 and exhaust sampling port 192Concentration into
Row is calculated, and calculation formula is: the CO at EGR rate=mixed gas sampling mouth 152CO at concentration/exhaust sampling port 192It is dense
Degree.
Beneficial effects of the present invention:
The present invention is flowed back using the pressure at expulsion simulation Multi-Cylinder Diesel Engine difference EGR of exhaust back-pressure regulating valve control gasoline single cylinder engine
Mode adjusts EGR reflux temperature using EGR cooling sea water regulating valve using EGR valve control EGR regurgitant volume to control EGR rate,
To realize single cylinder engine simulation Multi-Cylinder Diesel Engine EGR implementation, and which can also allow EGR reflux, EGR rate control and
EGR temperature control is decoupled with engine operation condition.
Detailed description of the invention
Fig. 1 is schematic structural diagram of the device of the invention.
Wherein: 1- gasoline single cylinder engine, 2- gas exhaust piping, 3- are vented tube of pressure-stabilizing, 4- exhaust back pressure regulating valve, 5-EGR cooling
Water inlet, 6-EGR cooler, 7-EGR cooling sea water regulating valve, 8-EGR cooling water outlet, 9-EGR valve, the first temperature sensing of 10-
Device, 11- first pressure sensor, 12- air inlet tube of pressure-stabilizing, 13- second temperature sensor, 14- second pressure sensor, 15- are mixed
Close gas sample tap, 16- intake-air throttle valve, 17 third temperature sensors, the 4th pressure sensor of 18-, 19- exhaust sampling port.
Specific embodiment
As shown in Figure 1, a kind of gasoline single cylinder engine EGR realization device, including gasoline single cylinder engine 1, gas exhaust piping 2, exhaust are surely
Pressure cylinder 3, exhaust back pressure regulating valve 4, cooler for recycled exhaust gas 6, EGR valve 9 and air inlet tube of pressure-stabilizing 12, wherein exhaust 3 one end of tube of pressure-stabilizing with
Gas exhaust piping 2 is connected, the other end and 4 piping connection of exhaust back pressure regulating valve, gas exhaust piping 2 simultaneously also with gasoline single cylinder engine 1
Piping connection is distinguished in one end of exhaust outlet and cooler for recycled exhaust gas 6, wherein the exhaust between exhaust tube of pressure-stabilizing 3 and gasoline single cylinder engine 1
Exhaust sampling port 19 is provided on pipeline 2, the gas exhaust piping 2 of 1 exhaust outlet side of gasoline single cylinder engine is arranged in exhaust sampling port 19
On, 6 other end of cooler for recycled exhaust gas and 12 piping connection of air inlet tube of pressure-stabilizing, air inlet tube of pressure-stabilizing 12 also with 1 inlet tube of gasoline single cylinder engine
Road connection, and it is disposed with mixed gas sampling mouth 15 from right to left on the pipeline, intake-air throttle valve 16, third temperature sensing
Device 17 and the 4th pressure sensor 18；
EGR valve 9 is mounted on the pipeline between cooler for recycled exhaust gas 6 and air inlet tube of pressure-stabilizing 12, and is additionally provided on the pipeline
One temperature sensor 10 and first pressure sensor 11, the first temperature sensor 10 and first pressure sensor 11 are mounted on air inlet
On the pipeline of 12 side of tube of pressure-stabilizing；EGR cooling water inlet 5 and EGR cooling water outlet 8 are provided on cooler for recycled exhaust gas 6, EGR is cooling
Water regulating valve 7 is arranged on EGR cooling water outlet 8；Second temperature sensor 13 and the second pressure are provided on air inlet tube of pressure-stabilizing 12
Force snesor 14.
The device working method: the purpose of device is control EGR reflux, EGR rate and EGR temperature,
It first has to realize EGR reflux, controls exhaust back pressure regulating valve 4 using pid control mode, make to be vented in tube of pressure-stabilizing 3
Pressure be more than air inlet tube of pressure-stabilizing 12 in pressure, realize exhaust gas recirculation；
The temperature of its secondary control EGR, EGR temperature are also to control EGR cooling sea water regulating valve 7 by PID mode to realize,
PID detection temperature is derived from the first temperature sensor 10, guarantee temperature range at the first temperature sensor 10 45-120 DEG C it
Between；
EGR rate is finally controlled, the aperture of EGR valve 9 is manually adjusted by slip rheostatic regulator, control enters air inlet pressure stabilizing
The exhaust gas flow of cylinder 12,9 aperture of EGR valve increase, then increase into the exhaust gas flow of air inlet tube of pressure-stabilizing 12, and EGR rate increases, EGR
9 aperture of valve reduces, then reduces into the exhausted air quantity of air inlet tube of pressure-stabilizing 12, and EGR rate reduces, thus achieve the purpose that control EGR rate,
EGR rate changes between 0-50%；
Wherein the calculating of EGR rate is the CO by measuring from mixed gas sampling mouth 15 and exhaust sampling port 192Concentration into
Row is calculated, and calculation formula is: the CO at EGR rate=mixed gas sampling mouth 152CO at concentration/exhaust sampling port 192It is dense
Degree；
The pressure in exhaust system is adjusted using exhaust back pressure regulating valve 4, making it is more than the pressure in air inlet tube of pressure-stabilizing 12,
Exhaust gas can be made to realize reflux in this way, exhaust gas temperature can be reduced when exhaust gas flows through cooler for recycled exhaust gas 6, by adjusting installation
EGR cooling sea water regulating valve 7 at EGR cooling water outlet 8 controls the flow of cooling water to realize temperature i.e. first of EGR
The temperature that temperature sensor 10 measures changes between 45-120 DEG C.
The exhausted air quantity into air inlet tube of pressure-stabilizing 12 is carried out by adjusting the aperture adjustment of EGR valve 9, to reach control EGR
Variation of the EGR rate from 0-50% may be implemented in the purpose of rate；The calculating of EGR rate be by from mixed gas sampling mouth 15 and exhaust
The CO measured at sample tap 192Concentration is calculated.Enter air inlet tube of pressure-stabilizing 12 using the detection of the first temperature sensor 10
Exhaust gas temperature, using first pressure sensor 11 detection enter air inlet tube of pressure-stabilizing 12 exhaust gas pressure, passed using second temperature
Sensor 13 and second pressure sensor 14 detect the temperature and pressure inside air inlet tube of pressure-stabilizing 12, utilize third temperature sensor 17
Enter the temperature and pressure of the gaseous mixture of gasoline single cylinder engine 1 by intake-air throttle valve 16 with the detection of the 4th pressure sensor 18.
Claims (2)
1. a kind of gasoline single cylinder engine EGR realization device, it is characterised in that including gasoline single cylinder engine (1), gas exhaust piping (2), exhaust
Tube of pressure-stabilizing (3), exhaust back pressure regulating valve (4), cooler for recycled exhaust gas (6), EGR valve (9) and air inlet tube of pressure-stabilizing (12), wherein exhaust is steady
Pressure cylinder (3) one end is connected with gas exhaust piping (2), the other end and exhaust back pressure regulating valve (4) piping connection, gas exhaust piping (2)
Piping connection also is distinguished with one end of the exhaust outlet of gasoline single cylinder engine (1) and cooler for recycled exhaust gas (6) simultaneously, wherein being vented tube of pressure-stabilizing
(3) it is provided with exhaust sampling port (19) on the gas exhaust piping (2) between gasoline single cylinder engine (1), cooler for recycled exhaust gas (6) other end
With air inlet tube of pressure-stabilizing (12) piping connection, air inlet tube of pressure-stabilizing (12) also with gasoline single cylinder engine (1) air inlet piping connection, and at this
Be disposed with from right to left on pipeline mixed gas sampling mouth (15), intake-air throttle valve (16), third temperature sensor (17) and
4th pressure sensor (18)；
EGR valve (9) is mounted on the pipeline between cooler for recycled exhaust gas (6) and air inlet tube of pressure-stabilizing (12), and is additionally provided on the pipeline
First temperature sensor (10) and first pressure sensor (11), be provided on cooler for recycled exhaust gas (6) EGR cooling water inlet (5) and
EGR cooling water outlet (8), EGR cooling sea water regulating valve (7) are arranged on EGR cooling water outlet (8)；On air inlet tube of pressure-stabilizing (12)
It is provided with second temperature sensor (13) and second pressure sensor (14).
2. realizing control EGR reflux, EGR rate and EGR temperature using claim 1 described device present invention simultaneously provides a kind of
Method, the specific method is as follows:
It first has to realize EGR reflux, controls exhaust back pressure regulating valve (4) using pid control mode, make to be vented in tube of pressure-stabilizing (3)
Pressure be more than air inlet tube of pressure-stabilizing (12) in pressure, realize exhaust gas recirculation；
The temperature of its secondary control EGR, EGR temperature are also that EGR cooling sea water regulating valve (7) is controlled by PID mode to realize, PID
Detection temperature be derived from the first temperature sensor (10), guarantee the first temperature sensor (10) at temperature range 45-120 DEG C it
Between；
EGR rate is finally controlled, the aperture of EGR valve (9) is manually adjusted by slip rheostatic regulator, control enters air inlet tube of pressure-stabilizing
(12) exhaust gas flow, EGR valve (9) aperture increase, then the exhaust gas flow into air inlet tube of pressure-stabilizing (12) increases, and EGR rate increases,
EGR valve (9) aperture reduces, then the exhausted air quantity into air inlet tube of pressure-stabilizing (12) is reduced, and EGR rate reduces, to reach control EGR rate
Purpose, EGR rate changes between 0-50%；
Wherein the calculating of EGR rate is the CO by measuring at mixed gas sampling mouth (15) and exhaust sampling port (19)2Concentration carries out
It is calculated, calculation formula is: the CO at EGR rate=mixed gas sampling mouth (15)2CO at concentration/exhaust sampling port (19)2It is dense
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066010.XA CN109252988A (en) | 2018-09-13 | 2018-09-13 | A kind of gasoline single cylinder engine EGR realization device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066010.XA CN109252988A (en) | 2018-09-13 | 2018-09-13 | A kind of gasoline single cylinder engine EGR realization device and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109252988A true CN109252988A (en) | 2019-01-22 |
Family
ID=65047310
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811066010.XA Pending CN109252988A (en) | 2018-09-13 | 2018-09-13 | A kind of gasoline single cylinder engine EGR realization device and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645105A (en) * | 2019-09-11 | 2020-01-03 | 奇瑞汽车股份有限公司 | Engine |
| CN111175050A (en) * | 2020-01-19 | 2020-05-19 | 安徽华菱汽车有限公司 | Method and device for simulating fresh air inflow abnormity of diesel engine |
| CN117470464A (en) * | 2023-11-20 | 2024-01-30 | 江苏东方瑞吉能源装备有限公司 | Pressure container hot helium leakage detection device and leakage detection method thereof |
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| DE102012207721A1 (en) * | 2011-05-12 | 2012-11-15 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Process for the management of ammonia slip |
| 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 |
| CN208996839U (en) * | 2018-09-13 | 2019-06-18 | 中国第一汽车股份有限公司 | A kind of gasoline single cylinder engine EGR realization device |
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2018
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Patent Citations (4)
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| JP2012219752A (en) * | 2011-04-12 | 2012-11-12 | Toyota Motor Corp | Control device for internal combustion engine |
| DE102012207721A1 (en) * | 2011-05-12 | 2012-11-15 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Process for the management of ammonia slip |
| 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 |
| CN208996839U (en) * | 2018-09-13 | 2019-06-18 | 中国第一汽车股份有限公司 | A kind of gasoline single cylinder engine EGR realization device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645105A (en) * | 2019-09-11 | 2020-01-03 | 奇瑞汽车股份有限公司 | Engine |
| CN111175050A (en) * | 2020-01-19 | 2020-05-19 | 安徽华菱汽车有限公司 | Method and device for simulating fresh air inflow abnormity of diesel engine |
| CN117470464A (en) * | 2023-11-20 | 2024-01-30 | 江苏东方瑞吉能源装备有限公司 | Pressure container hot helium leakage detection device and leakage detection method thereof |
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Application publication date: 20190122 |