CN110107394A - A kind of high pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger - Google Patents
A kind of high pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger Download PDFInfo
- Publication number
- CN110107394A CN110107394A CN201910369213.4A CN201910369213A CN110107394A CN 110107394 A CN110107394 A CN 110107394A CN 201910369213 A CN201910369213 A CN 201910369213A CN 110107394 A CN110107394 A CN 110107394A
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- Prior art keywords
- exhaust gas
- pressure stage
- low
- pressure
- egr
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- 239000013618 particulate matter Substances 0.000 claims abstract description 22
- 230000008676 import Effects 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 73
- 238000005516 engineering process Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- 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
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/08—EGR systems specially adapted for supercharged engines for engines having two or more intake charge compressors or exhaust gas turbines, e.g. a turbocharger combined with an additional compressor
-
- 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
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a kind of, and the high pressure exhaust gas low-pressure side based on two-stage turbocharger introduces system, including engine, hiigh pressure stage turbocharger and lower pressure stage turbocharger, engine connects inlet manifold and exhaust main, hiigh pressure stage turbocharger includes hiigh pressure stage exhaust gas turbine and hiigh pressure stage compressor, lower pressure stage turbocharger includes low-pressure stage exhaust gas turbine and low-pressure stage compressor, inlet manifold connects air inlet pipeline, exhaust main connects gas exhaust piping, check valve is arranged in air inlet pipeline, low-pressure stage compressor, hiigh pressure stage compressor and air intake intercooler, hiigh pressure stage exhaust gas turbine is arranged in gas exhaust piping, low-pressure stage exhaust gas turbine, preprocessor and counterbalance valve；High pressure EGR tube road is connected between the import of hiigh pressure stage exhaust gas turbine and low-pressure stage compressor inlet, cooler for recycled exhaust gas, EGR valve and particulate matter trap is arranged in high pressure EGR tube road.The present invention can not only expand the introduction range of EGR rate, moreover it is possible to improve the efficiency of engine, reduce discharge.
Description
Technical field
The invention belongs to diesel engine clean-burning technology field, more specifically, it relates to one kind to be increased based on two-stage turbine
The high pressure exhaust gas low-pressure side of depressor introduces system.
Background technique
Modern emission regulation is increasingly strict, and the exhaust emissions for reducing engine is following inexorable trend, wherein NOx and
The emission control of grain object is most stringent.At work, high-temperature oxygen-enriched area when cylinder fuel is burnt is also easy to produce NOx to engine, is
Reduction NOx emission, just should oxygen concentration and maximum combustion temperature in master cylinder.It can be effectively reduced engine NOx at present
The technology of discharge has EGR Technology (EGR), selective catalytic reduction (SCR) post-processing technology and emulsifying combustion technology.
Wherein EGR technology refers to that a part by engine discharge exhaust gas is introduced into air inlet pipe, mixes latter with entrance with fresh air
Cylinder participates in burning again, plays the role of reducing ignition temperature and oxygen concentration, and then reduce engine NOx emission.
Current EGR technology is broadly divided into high pressure EGR technology and low pressure EGR technology.High pressure EGR technology is increased from engine
Depressor turbine front end takes gas, engine intake manifold is entered after cooler for recycled exhaust gas and EGR valve, after mixing with fresh air
Into in cylinder；Low pressure EGR technology is to take gas after the after-treatment device that charger turbine is vented, cold by EGR
But it mixes into low-pressure stage compressor front end with fresh air after device and EGR valve, enters in cylinder after pressurization.Both
EGR technology uses different exhaust gas introducing methods, the advantage and disadvantage for having its intrinsic and the condition range for being suitble to operation: for high pressure
EGR, circuit is short, and transient response speed is fast, but the admission pressure being pressurized in high load capacity is higher than whirlpool front row atmospheric pressure, merely
It opens EGR valve to be difficult to introduce EGR, therefore high pressure EGR is suitble to use in running on the lower load；Relative to high pressure EGR, low pressure EGR whirlpool
After take gas, in high-speed high-load, pressure is smaller before required whirlpool, and engine pumping loss is smaller, while being also readily incorporated exhaust gas
Biggish EGR rate is generated, but because it takes gas after after-treatment device, there are difficult arrangement, the disadvantage that circuit is long and pressure difference is small is led
Cause transient response speed slow, response duration engine emission is difficult to meet the requirements.
In conclusion in order to meet increasingly strict laws and regulations requirement, it is necessary to it is tired to solve existing low pressure EGR system arrangement
Difficulty, exhaust gas introduces difficult problem under high pressure EGR system high load working condition.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, proposes a kind of height based on two-stage turbocharger
It presses exhaust gas low-pressure side to introduce system, the introduction range of EGR rate can not only be expanded, also take into account under different load engine to EGR
Requirement, improve the efficiency of engine, reduce discharge.
The purpose of the present invention is what is be achieved through the following technical solutions.
The present invention is based on the high pressure exhaust gas low-pressure sides of two-stage turbocharger to introduce system, including engine, hiigh pressure stage whirlpool
Wheel booster and lower pressure stage turbocharger, the engine are connected with inlet manifold and exhaust main, the hiigh pressure stage turbine
Booster includes the hiigh pressure stage exhaust gas turbine and hiigh pressure stage compressor rotated coaxially, and the lower pressure stage turbocharger includes coaxial
The low-pressure stage exhaust gas turbine and low-pressure stage compressor of rotation, the inlet manifold are connected with air inlet pipeline, and the exhaust main connects
It is connected to gas exhaust piping, sets gradually check valve, low-pressure stage compressor, hiigh pressure stage compressor along airintake direction on the air inlet pipeline
And air intake intercooler, on the gas exhaust piping along discharge directions set gradually hiigh pressure stage exhaust gas turbine, low-pressure stage exhaust gas turbine, after
Processor and counterbalance valve；
High pressure EGR tube road, the height are connected between the hiigh pressure stage exhaust gas turbine import and low-pressure stage compressor inlet
It is provided with cooler for recycled exhaust gas, EGR valve and particulate matter trap on pressure EGR line, the EGR valve is set to cooler for recycled exhaust gas and particle
Between object trap；The cooler for recycled exhaust gas import is connected with EGR valve, and outlet is connected with low-pressure stage compressor inlet pipeline；It is described
Particulate matter trap import is connected with hiigh pressure stage exhaust gas turbine inlet ductwork, and outlet is connected with EGR valve.
The input end on the high pressure EGR tube road is connected to hiigh pressure stage exhaust gas turbine inlet ductwork, outlet end and low-pressure stage pressure
The connection of mechanism of qi inlet ductwork.
The EGR valve is electrically-controlled valve, adjusts its aperture by detecting the operating condition of engine by ECU to obtain difference
EGR rate.
Draw a part of high pressure exhaust gas from hiigh pressure stage exhaust gas turbine inlet ductwork, by particulate matter trap, EGR valve and
After cooler for recycled exhaust gas, low-pressure stage compressor inlet pipeline is introduced, is mixed with fresh air latter laggard with being pressurized through two stage compressor
Enter engine, realizes biggish EGR rate.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
(1) exhaust gas of the present invention is derived from hiigh pressure stage exhaust gas turbine import, and exhaust gas is without utilizing and cooling down, pressure with higher
With higher temperature, therefore the particulate matter in exhaust gas enter particulate matter trap before can also continue in high temperature oxidation combustion
It burns, reduces the possibility of plugging particle object trap.
(2) compared with traditional high pressure EGR system, even if engine operates in big load, hiigh pressure stage turbine inlet exhaust gas
Pressure is still higher than low-pressure stage compressor intake pressure, and (i.e. atmospheric pressure, pressure is low on engine air inlet tube road at this
Pressure), therefore can still guarantee reliably to introduce exhaust gas under heavy load, it realizes biggish EGR rate, compensates for conventional high-tension EGR
The shortcomings that system cannot introduce EGR because of admission pressure height under high load working condition.
(3) compared with traditional low pressure EGR system, the present invention takes out high pressure in the inlet ductwork of high-pressure turbine stage and gives up
Gas, pipeline arrangement is convenient, and there is no low pressure EGR systems to take vehicle pipeline difficult arrangement caused by gas after after-treatment device
Disadvantage.
(4) present invention applies particulate matter trap on high pressure EGR tube road, has purified the exhaust gas into egr system,
Reduce to egr system, the pollution of pressure charging system and engine improves the reliability of engine overall operation.
Detailed description of the invention
Fig. 1 is that the present invention is based on the high pressure exhaust gas low-pressure sides of two-stage turbocharger to introduce system schematic.
Appended drawing reference: 1 inlet manifold, 2 engines, 3 air intake intercoolers, 4 hiigh pressure stage turbocharger, 5 lower pressure stage turbines
Booster, 6 check valves, 7EGR cooler, 8 counterbalance valves, 9 preprocessors, 10EGR valve, 11 particulate matter traps, 12 high pressure EGR
Pipeline, 13 exhaust mains；
H.Turb hiigh pressure stage exhaust gas turbine, H.Comp hiigh pressure stage compressor, L.Turb low-pressure stage exhaust gas turbine, L.Comp are low
It arbitrarily downgrades compressor.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail, be more clear above and other purpose of the invention, feature and advantage will.Attached
Not deliberately attached drawing drawn to scale in figure, it is preferred that emphasis is show the gist of the present invention.With reference to the accompanying drawing to the present invention make into
The description of one step.
As shown in Figure 1, the present invention is based on the high pressure exhaust gas low-pressure sides of two-stage turbocharger to introduce system, including engine
2, hiigh pressure stage turbocharger 6 and lower pressure stage turbocharger 7, the engine 2 are connected with inlet manifold 1 and exhaust main
13, the inlet manifold 1 is connected with air inlet pipeline, and the exhaust main 13 is connected with gas exhaust piping.The hiigh pressure stage turbine increases
Depressor 4 includes the hiigh pressure stage exhaust gas turbine H.Turb rotated coaxially and hiigh pressure stage compressor H.Comp, and the lower pressure stage turbine increases
Depressor 5 includes the low-pressure stage exhaust gas turbine L.Turb and low-pressure stage compressor L.Comp rotated coaxially, and turbine, which is all set in, to be started
On gas exhaust piping after the exhaust main 13 of machine 2, compressor is all set on the air inlet pipeline before the inlet manifold 1 of engine 2.
Check valve 6, low-pressure stage compressor L.Comp, hiigh pressure stage is set gradually along airintake direction on the air inlet pipeline to calm the anger
Machine H.Comp and air intake intercooler 3.Hiigh pressure stage exhaust gas turbine H.Turb, low is set gradually along discharge directions on the gas exhaust piping
It arbitrarily downgrades exhaust gas turbine L.Turb, preprocessor 9 and counterbalance valve 8.
High pressure EGR tube road 12 is connected between the hiigh pressure stage exhaust gas turbine import and low-pressure stage compressor inlet, it is described
It is provided with cooler for recycled exhaust gas 7, EGR valve 10 and particulate matter trap 11 on high pressure EGR tube road 12, constitutes high pressure EGR system.It is described
The input end on high pressure EGR tube road 12 is connected to hiigh pressure stage exhaust gas turbine inlet ductwork, outlet end and low-pressure stage compressor inlet pipe
Road connection.7 import of cooler for recycled exhaust gas is connected with EGR valve 10, and outlet is connected with low-pressure stage compressor inlet pipeline, to cold
But high pressure exhaust gas guarantees suitable charge density.The EGR valve 10 be set to cooler for recycled exhaust gas 7 and particulate matter trap 11 it
Between, both ends are separately connected 7 import of cooler for recycled exhaust gas and particulate matter trap 11 exports, according to the aperture of 2 Operating condition adjustment valve of engine
It can get different EGR rates, to realize cleaning burning.Before the particulate matter trap 11 is located at low-pressure stage compressor inlet,
Its import is connected with hiigh pressure stage exhaust gas turbine inlet ductwork, and outlet is connected with EGR valve 10, enters hiigh pressure stage compressor to purify
Particulate matter in exhaust gas prevents particulate matter from influencing the operation of two stage compressor.
Wherein, check valve 6 is set on low-pressure stage compressor inlet pipeline and is located at 12 outlet upstream of high pressure EGR tube road,
Guarantee air flow direction compressor, prevents high pressure exhaust gas from flowing to atmosphere through air inlet pipeline.The EGR valve 10 is electrically-controlled valve, Neng Gouyou
ECU adjusts its aperture by detecting the operating condition of engine 2 to obtain different EGR rates.
The present invention is based on the high pressure exhaust gas low-pressure sides of two-stage turbocharger to introduce system, more specifically, be it is a kind of from
A part of high pressure exhaust gas is drawn in hiigh pressure stage exhaust gas turbine inlet ductwork, it is cold by particulate matter trap 11, EGR valve 10 and EGR
But after device 7, low-pressure stage compressor inlet (pressure is in engine air inlet tube Lu Shangwei low pressure at this) pipeline is introduced, with fresh air
Mix it is latter with after two stage compressor is pressurized enter engine 2, be easy to arrange and larger EGR rate easy to accomplish high pressure exhaust gas
Low-pressure side introduces system.
Wherein the working principle and the course of work of high pressure EGR system are as follows:
When engine 2 needs EGR, EGR valve 10 is opened, due to the presence of pressure difference, exhaust gas from hiigh pressure stage exhaust gas turbine into
Mouth pipeline flows into high pressure EGR tube road 12, after the purification of particulate matter trap 11, EGR valve 10 and cooler for recycled exhaust gas 7 is cooling, enters
Low-pressure stage compressor inlet pipeline mixes with fresh air and enters engine 2 after two stage compressor pressurization is cooling, realizes high
Press EGR in the introducing of air inlet pipeline low-pressure side.ECU adjusts the aperture of EGR valve 10 by detecting the operating condition of engine 2,
Real-time control enters the exhaust gas flow of engine 2, to obtain different EGR rates, there are larger for high pressure exhaust gas and low-pressure admission
Pressure difference taken into account the demand of high underload EGR even if biggish EGR rate can be reached big load.Due to not from tail gas
Exhaust gas is introduced at post-processing, therefore there is no the difficulties on arrangement.In the present invention, since exhaust gas will calm the anger by two-stage
Otherwise machine is easily damaged compressor so particle content cannot be too high in exhaust gas, so in the high pressure EGR system circuit
Provided with particulate matter trap 11, the effective particulate matter filtered in exhaust gas not only ensure that the reliability service of two stage compressor, but also
Reduce pollution of the exhaust gas to engine 2 and egr system pipeline.
Although function and the course of work of the invention are described above in conjunction with attached drawing, the invention is not limited to
Above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than restrictive, ability
The those of ordinary skill in domain under the inspiration of the present invention, is not departing from present inventive concept and scope of the claimed protection situation
Under, many forms can also be made, all of these belong to the protection of the present invention.
Claims (4)
1. a kind of high pressure exhaust gas low-pressure side based on two-stage turbocharger introduces system, including engine (2), hiigh pressure stage turbine
Booster (4) and lower pressure stage turbocharger (5), the engine (2) are connected with inlet manifold (1) and exhaust main (13),
The hiigh pressure stage turbocharger (4) includes the hiigh pressure stage exhaust gas turbine and hiigh pressure stage compressor rotated coaxially, the low-pressure stage
Turbocharger (5) includes the low-pressure stage exhaust gas turbine and low-pressure stage compressor rotated coaxially, and the inlet manifold (1) is connected with
Air inlet pipeline, the exhaust main (13) are connected with gas exhaust piping, which is characterized in that on the air inlet pipeline along airintake direction according to
Secondary setting check valve (6), low-pressure stage compressor, hiigh pressure stage compressor and air intake intercooler (3), along exhaust on the gas exhaust piping
Direction sets gradually hiigh pressure stage exhaust gas turbine, low-pressure stage exhaust gas turbine, preprocessor (9) and counterbalance valve (8)；
High pressure EGR tube road (12), the height are connected between the hiigh pressure stage exhaust gas turbine import and low-pressure stage compressor inlet
It is provided with cooler for recycled exhaust gas (7), EGR valve (10) and particulate matter trap (11) in pressure EGR line (12), the EGR valve (10) sets
It is placed between cooler for recycled exhaust gas (7) and particulate matter trap (11)；Cooler for recycled exhaust gas (7) import is connected with EGR valve (10), out
Mouth is connected with low-pressure stage compressor inlet pipeline；Particulate matter trap (11) import and hiigh pressure stage exhaust gas turbine inlet ductwork
It is connected, outlet is connected with EGR valve (10).
2. the high pressure exhaust gas low-pressure side according to claim 1 based on two-stage turbocharger introduces system, feature exists
In the input end of the high pressure EGR tube road (11) is connected to hiigh pressure stage exhaust gas turbine inlet ductwork, and outlet end is calmed the anger with low-pressure stage
The connection of machine inlet ductwork.
3. the high pressure exhaust gas low-pressure side according to claim 1 based on two-stage turbocharger introduces system, feature exists
In the EGR valve (10) is electrically-controlled valve, adjusts its aperture by detecting the operating condition of engine by ECU to obtain difference
EGR rate.
4. the high pressure exhaust gas low-pressure side according to claim 1 based on two-stage turbocharger introduces system, feature exists
In a part of high pressure exhaust gas being drawn from hiigh pressure stage exhaust gas turbine inlet ductwork, by particulate matter trap (11), EGR valve
(10) and after cooler for recycled exhaust gas (7), low-pressure stage compressor inlet pipeline is introduced, mixes and latter calms the anger with through two-stage with fresh air
Enter engine (2) after machine pressurization is cooling, realizes biggish EGR rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369213.4A CN110107394A (en) | 2019-05-05 | 2019-05-05 | A kind of high pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369213.4A CN110107394A (en) | 2019-05-05 | 2019-05-05 | A kind of high pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110107394A true CN110107394A (en) | 2019-08-09 |
Family
ID=67488115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910369213.4A Pending CN110107394A (en) | 2019-05-05 | 2019-05-05 | A kind of high pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2927373A1 (en) * | 2008-02-12 | 2009-08-14 | Renault Sas | Intake device for diesel engine of vehicle, has intake distributor including two separated plenum chambers that contain high and low pressure exhaust gas recirculation gases, respectively, and are connected to common intake pipe |
| JP2010223077A (en) * | 2009-03-23 | 2010-10-07 | Toyota Motor Corp | Internal combustion engine |
| US20110036087A1 (en) * | 2009-08-12 | 2011-02-17 | International Engine Intellectual Property Company, Llc | Engine exhaust system having filter before turbocharger |
| CN104018957A (en) * | 2013-02-22 | 2014-09-03 | 曼柴油机和涡轮机欧洲股份公司 | Internal combustion engine, exhaust gas recirculation device, and method for exhaust gas recirculation |
| CN106574580A (en) * | 2014-07-11 | 2017-04-19 | Fev有限责任公司 | Exhaust gas recirculation system for an internal combustion engine and method for operating such an exhaust gas recirculation system |
| CN210343490U (en) * | 2019-05-05 | 2020-04-17 | 天津大学 | High-pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger |
-
2019
- 2019-05-05 CN CN201910369213.4A patent/CN110107394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2927373A1 (en) * | 2008-02-12 | 2009-08-14 | Renault Sas | Intake device for diesel engine of vehicle, has intake distributor including two separated plenum chambers that contain high and low pressure exhaust gas recirculation gases, respectively, and are connected to common intake pipe |
| JP2010223077A (en) * | 2009-03-23 | 2010-10-07 | Toyota Motor Corp | Internal combustion engine |
| US20110036087A1 (en) * | 2009-08-12 | 2011-02-17 | International Engine Intellectual Property Company, Llc | Engine exhaust system having filter before turbocharger |
| CN104018957A (en) * | 2013-02-22 | 2014-09-03 | 曼柴油机和涡轮机欧洲股份公司 | Internal combustion engine, exhaust gas recirculation device, and method for exhaust gas recirculation |
| CN106574580A (en) * | 2014-07-11 | 2017-04-19 | Fev有限责任公司 | Exhaust gas recirculation system for an internal combustion engine and method for operating such an exhaust gas recirculation system |
| CN210343490U (en) * | 2019-05-05 | 2020-04-17 | 天津大学 | High-pressure exhaust gas low-pressure side introducing system based on two-stage turbocharger |
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