CN108087157A - A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function - Google Patents
A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function Download PDFInfo
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- CN108087157A CN108087157A CN201810019495.0A CN201810019495A CN108087157A CN 108087157 A CN108087157 A CN 108087157A CN 201810019495 A CN201810019495 A CN 201810019495A CN 108087157 A CN108087157 A CN 108087157A
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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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/028—Adding water into the charge intakes
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- 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
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
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- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
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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
- F02M26/02—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
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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
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
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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
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Supercharger (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a kind of compression-ignition engine low-temperature burning system with air intake duct spraying function, including engine, two-step supercharging system, variable-section turbomachine, the air intake duct water injection system that can be automatically controlled, exhaust particulate trap, high-low pressure egr system.Two-step supercharging system provides enough air capacities for engine by supercharging, and high-low pressure egr system fully dilutes oxygen concentration in cylinder, so as to reduce reaction rate in cylinder, forms low-temperature burning in cylinder.And the specific heat capacity of air inlet is significantly increased by water spray for the water jet with heater grid, while air inlet is cooled down, reaching reduces in-cylinder combustion temperature, and the effect of NOx emission is greatly reduced.ECU connects air flue water jet, high pressure exhaust gas recycle valve, low pressure exhaust gas recycle valve, variable-section turbomachine, engine by control line, by detecting engine operating condition, dynamic control is carried out to each system, the target of NOx emission is greatly reduced so as to fulfill being realized in full working scope.
Description
Technical field
The present invention relates to a kind of compression-ignition engine machine low-temperature burning system with air flue spraying function, particularly one kind to exist
Air inlet pipe is sprayed water after booster, with reference to exhaust gas recycling and the compression-ignition engine combustion system of two-step supercharging.
Background technology
Internal combustion engine development remains prime mover of thermal efficiency highest, unit volume and power per unit mass maximum, quilt so far
It is widely used in the every field such as automobile, agricultural machinery, national defence, industrial machinery.Wherein development of automobile industry is rapid, national machine in 2016
Motor-car ownership reaches 2.95 hundred million.However huge car ownership also brings very important environmental problem,《China is motor-driven
Vehicle management annual report (2017)》It points out, in national motor vehicle emission pollutant, about 577.8 ten thousand tons of nitrogen oxides (NOx) discharge,
About 53.4 ten thousand tons of particulate matter (PM) discharge.To solve the problems, such as vehicular emission, stringent discharge has been promulgated in countries in the world in succession
Regulation, the emission regulation in China have continued to use European systems, and each stage regulation and the limit value in Europe are consistent, but implementation date has
It is postponed.The year two thousand twenty, China will carry out stringenter six regulation of state, and NOx limit values are 0.4g/kWh, PM 0.01g/ at that time
kWh.Turbocharging technology is that internal combustion engine realizes key technology that is energy-efficient and reducing noxious emission, and pressure charging system has become existing
For the key components of advanced air system of internal combustion engines.The outside of air is realized using exhaust energy using turbocharging technology
Compression, improves charge density, on the one hand can improve the power per liter of engine, on the other hand provides for burning and more fills
The air of foot can be effectively improved the fuel economy of engine, reduce CO2Discharge and other noxious emissions.At present, turbine
Pressure charging system has become the standard configuration of modern advanced diesel engine substantially, while gasoline engine turbocharging technology is also rapid general
And.And not only need efficient post-processing technology close to zero harsh emission limit, it is also necessary to the original of stringent control engine
Begin discharge, exhaust gas recycling (EGR) as control combustion process and NOx emission effective means obtained wide research with
Using being that diesel engine meets Europe VI and its essential technical measures of rear emission regulation and realizes with " homogeneity compression-ignition, low
Temperature burning " is the most key and effective control technology of new combustion mode of representative.Some researchs both domestic and external show water
It introduces diesel engine to burn, air inlet specific heat capacity can be increased, dilute oxygen content in cylinder, ignition temperature is reduced, so as to reduce NOx
Discharge, achievees the effect that similar with EGR.However, above-mentioned technology all suffers from some problems.For turbocharging technology,
During using high EGR rate low-temperature burning, since the introducing of large quantity of exhaust gas is, it is necessary to which pressure charging system provides stronger boosting capability to meet
To the demand of new charge amount, traditional single stage supercharging efficiency of turbocharger when realizing high boost presence is low, engine pump gas damage
It loses greatly, fuel economy is poor, and the booster of constant cross-section is difficult to meet the needs of full working scope intrinsic motivation is to boosting capability.It is useless
Gas recirculating technique also brings along problems：Particulate matter in exhaust gas causes air system dirty；It is small in some exhaust back pressures
Exhaust gas introduces difficult under the operating mode of admission pressure；The reliability and endurance issues of EGR valve；Pumping work loss causes oil consumption to increase
Add.And air inlet path for diesel engine water spray combine low-temperature burning in terms of research be rarely reported, and control strategy also have it is to be optimized.
The content of the invention
The shortcomings that it is an object of the invention to overcome prior art, providing one kind can realize that compression-ignition engine low temperature fires
It burns, emissions from engines, especially discharged nitrous oxides is greatly lowered, meet six emission regulation of state has air intake duct water spray
The compression-ignition engine low-temperature burning system of function.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of compression-ignition engine machine low-temperature burning system with air flue water spray of the present invention, including two-step supercharging system
System, gas recirculation system and control system, further include air flue water injection system；
The two-step supercharging system is included in the air that engine air inlet tube road is installed successively along air-flow direction
Filter, low-pressure stage compressor, charge air cooler and high pressure stage compressor, the air filter inlet communication air are arranged in engine
High-pressure turbine stage, lower pressure stage turbines, the grain catcher installed successively along exhaust gas flow direction on air pipe, the height
Turbine inlet of arbitrarily downgrading is connected directly with the exhaust pipe of engine；The lower pressure stage turbines and the coaxial phase of low-pressure stage compressor
Even, the high-pressure turbine stage is coaxially connected with high pressure stage compressor, and the high-pressure turbine stage is variable-section turbomachine；
The gas recirculation system includes high pressure exhaust gas recirculation circuit and low pressure exhaust gas recirculation circuit, engine
Exhaust pipe is divided into two branches, and a branch connects high-pressure turbine stage entrance, and another branch road is equipped with exhaust gas recycling
Cooler and high pressure exhaust gas recycle valve, the outlet of high pressure exhaust gas recycle valve be connected to high pressure stage compressor and air flue water jet it
Between air inlet pipeline on, pipeline forms high pressure exhaust gas again where the high pressure exhaust gas recycle valve and cooler for recycled exhaust gas
Circulation loop, grain catcher outlet are divided into the first branch and the second branch, and first branch connection air is pacified in the second branch
Equipped with low pressure exhaust gas recycle valve, the outlet of the low pressure exhaust gas recycle valve is connected on air cleaner and low-pressure stage compressor
Between air inlet pipeline on, the second branch where the low pressure exhaust gas recycle valve forms low pressure exhaust gas recirculation circuit；
The water injection system includes water tank, and two position alarm, level monitoring system are equipped in the water tank
And heating unit, the tank outlet quality of connection flowmeter entrance, mass flowmenter outlet connection air intake duct
Water jet water inlet, the air intake duct water jet is mounted on engine air inlet tube road, in the engine charge pipeline
Tube chamber in and perpendicular to the flow direction of air heater grid is installed, the air intake duct water jet passes through engine charge
The water jet alignment heater grid setting of the tube wall and water jet of pipeline, the heater grid are connected with heating unit；
The control system includes control unit, and the control unit passes through control line and air intake duct water jet, height
Pressure exhaust gas recirculation valve, low pressure exhaust gas recycle valve, turbine are connected with engine, described control unit acquisition engine operating condition
Signal and emissions concentration signal and engine operation condition signal, when generating the water spray pulsewidth and water spray of air intake duct water jet
Carve the opening amount signal of signal, high pressure exhaust gas recycle valve and low pressure exhaust gas recycle valve, the opening amount signal of variable-section turbomachine.
Compared with prior art, the invention has the advantages that：
First, air flue is combined using engine low temperature burning and is sprayed water, can also be obtained while NOx is greatly reduced relatively low
Oil consumption.Second, air flue direct-injection water saves devaporation preparation facilities compared to water-vapour spray, while can be preferably atomized.
3rd, the present invention is combined by two-stage supercharger of connecting with high-low pressure EGR, realizes compression-ignition engine low-temperature burning,
After air intake duct booster water injector is set simultaneously, air flue is sprayed water and is combined with low-temperature burning, and pass through ECU to each system into
Row real-time monitoring can be realized and emissions from engines is greatly lowered, especially discharged nitrous oxides, so as to not use costliness
Meet the purpose of six emission regulation of state in the case of after-treatment device.
Description of the drawings
Fig. 1 is a kind of simplified schematic diagram of the compression-ignition engine machine low-temperature burning system with air flue water spray of the present invention.
Fig. 2 is the pipe section schematic diagram of air flue water jet position.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of compression-ignition engine machine low-temperature burning system with air flue water spray of the present invention as shown in Figure 1, increases including two-stage
Pressure system, gas recirculation system and control system further include air flue water injection system.
The air-flow direction of the two-step supercharging system is marked in figure with arrow.The two-step supercharging system bag
Include the air cleaner 1 installed successively along air-flow direction on engine air inlet tube road, low-pressure stage compressor 3, charge air cooler 4
With high pressure stage compressor 5, the air filter inlet communication air.I.e.：The air filter outlet connection low-pressure stage compressor 3
Import, low-pressure stage compressor 3 outlet be connected with 4 import of charge air cooler, charge air cooler 4 outlet be connected to high pressure stage compressor 5 into
Gas port.The high-pressure turbine stage 13 installed successively along exhaust gas flow direction in Engine exhaust pipeline, lower pressure stage turbines 14,
Grain catcher (DPF) 15,13 import of high-pressure turbine stage are connected directly with 12 exhaust pipe of engine；I.e.：Hiigh pressure stage
Outlet connection 14 import of lower pressure stage turbines of turbine 13, the outlet of lower pressure stage turbines 14 connection grain catcher 15.
The lower pressure stage turbines 14 are coaxially connected with low-pressure stage compressor 3, the high-pressure turbine stage 13 and height
Compressor 5 of arbitrarily downgrading coaxially is connected.The high-pressure turbine stage 13 is variable-section turbomachine.
The gas recirculation system includes high pressure exhaust gas recirculation circuit and low pressure exhaust gas recirculation circuit.Engine
Exhaust pipe is divided into two branches, and a branch connects 13 entrance of high-pressure turbine stage, and another branch road is equipped with exhaust gas and follows again
Ring cooler 11 and high pressure exhaust gas recycle valve 10, it is gentle that the outlet of high pressure exhaust gas recycle valve 10 is connected to high pressure stage compressor 5
On air inlet pipeline between road water jet 9.High pressure exhaust gas recycle valve 10 and 11 place pipeline of cooler for recycled exhaust gas are formed
High pressure exhaust gas recirculation circuit.The outlet of grain catcher 15 is divided into the first branch and the second branch, and the first branch connects air,
Low pressure exhaust gas recycle valve 2 is installed, the outlet of the low pressure exhaust gas recycle valve is connected on air cleaner 1 in the second branch
On air inlet pipeline between low-pressure stage compressor 3.2 place the second branch of low pressure exhaust gas recycle valve forms low pressure exhaust gas and follows again
Loop back path.
The water injection system includes water tank, and two position alarm, level monitoring system are equipped in the water tank 6
And heating unit, the optional open type of the water tank or enclosed, provide irrigation pressure by additional pressue device.The water tank
6 outlet quality of connection flowmeter, 7 entrance, 9 water inlet of mass flowmenter outlet connection air intake duct water jet.It is described into
Air flue water jet is mounted on engine air inlet tube road, in the tube chamber of the engine charge pipeline and perpendicular to air
Flow direction is equipped with heater grid 16, and the air intake duct water jet passes through the tube wall and water jet of engine charge pipeline
Water jet alignment heater grid 16 set.The heater grid 16 is connected with heating unit.
The preferred air intake duct water jet structure is as shown in Fig. 2, air intake duct water jet 9 can have multiple, multiple air intake ducts
Water jet is equally spaced in the cross-sectional periphery of engine charge pipeline, and atomized water spray promotes drop to evaporate in heater grid.
Electrical heating can be used in heater grid, and heating temperature can manual setting.
The control system includes control unit (ECU) 8, and control unit passes through control line and air intake duct water jet 9, height
Pressure exhaust gas recirculation valve 10, low pressure exhaust gas recycle valve 2, turbine 13 and engine 12 connect.The acquisition hair of described control unit 8
12 working condition signal of motivation and emissions concentration signal and engine operation condition signal, the water spray of generation air intake duct water jet 9
The opening amount signal of pulsewidth and water spray time-ofday signals, high pressure exhaust gas recycle valve 10 and low pressure exhaust gas recycle valve 2, variable cross section whirlpool
The opening amount signal of turbine 13.
When the system is run, fresh air first passes around 1 impurity screening of air filter, afterwards with being followed again from low pressure exhaust gas
The low pressure exhaust gas of ring valve 2 is compressed after being sufficiently mixed into low-pressure stage compressor 3, then is entered after charge air cooler 4 is fully cooled
High pressure stage compressor 5 is compressed again, is mixed afterwards with the high pressure exhaust gas from high pressure exhaust gas recycle valve 10, then with into
It burns after the water mist mixing that air flue water jet 9 sprays into engine 12.Wherein it is evenly distributed on air inlet pipeline tube wall 17
On the water mist that sprays of multiple air intake duct water jets 9 be sprayed directly on to and be placed in the heater grid 16 in pipeline center, water mist is in quilt
It is also heated while smashing, ensures fully atomization.High pressure exhaust gas in engine after all burnt is divided into two-way, all the way for
High pressure exhaust gas recirculation circuit provides exhaust gas, and another way is sequentially connected high-pressure turbine stage 13, lower pressure stage turbines 14 carry out two
Secondary acting connects grain catcher 15 and filters out carbon soot particles in exhaust gas afterwards.Grain catcher outlet is divided into two-way, all the way
Air is directly arranged, another way provides low pressure exhaust gas for low pressure exhaust gas recirculation circuit.
Control unit 8 identifies 12 working condition signal of engine, and the emissions concentration and engine operation condition detected in real time.
During Smaller load, the main problem of burning is that delay period is longer, and Pressure Rise Rate is excessively high to cause engine rough running, larger water spray
Higher EGR rate can further extend fuel oil delay period, cause work more rough and higher hydrocarbon and carbon monoxide
Discharge.Control unit 8 can send the signal for reducing water spray to air intake duct water jet 9 at this time, simultaneously close off high pressure exhaust gas and follow again
The aperture of ring valve 10 and low pressure exhaust gas recycle valve 2；During big load, in-cylinder combustion temperature is high, and soot and discharged nitrous oxides are all
It is higher, larger EGR rate and water spray is needed to reduce in-cylinder combustion temperature at this time, reaches the mesh that discharged nitrous oxides are greatly reduced
, while be also required to reduce the circulation area of the high-pressure turbine stage 13 of variable cross section to ensure that enough new charge amounts maintain
Burning.Control unit 8 can send the signal for increasing water spray to air intake duct water jet 9 at this time, to high pressure exhaust gas recycle valve 10
Being sent with low pressure exhaust gas recycle valve 2 increases the signal of aperture, while is sent to turbine 13 and reduce opening amount signal.As above institute
It states, which realizes the low-temperature burning in engine full working scope by spraying water with reference to high and low pressure EGR, and NOx rows are greatly lowered
It puts, reaches the requirement for meeting six emission limit of state.
Although invention has been described for above-mentioned combination schematic diagram, the invention is not limited in above-mentioned specific realities
Mode is applied, presented above is only schematic and nonrestrictive.Those skilled in the art is not taking off under the enlightenment of the present invention
In the case of from present inventive concept, various deformation can also be carried out (as using the supercharging mode for being different from series connection two-step supercharging, adopted
Gas recirculation system differently, using multiple air intake duct water jets etc.), these belong to the present invention protection it
It is interior.
Claims (2)
1. a kind of compression-ignition engine machine low-temperature burning system with air flue water spray is recycled including two-step supercharging system, exhaust gas
System and control system, it is characterised in that：Further include air flue water injection system；
The two-step supercharging system is included in the air-filtering that engine air inlet tube road is installed successively along air-flow direction
Device, low-pressure stage compressor, charge air cooler and high pressure stage compressor, the air filter inlet communication air, in the exhaust pipe of engine
High-pressure turbine stage, lower pressure stage turbines, the grain catcher that road is installed successively along exhaust gas flow direction, the hiigh pressure stage
Turbine inlet is connected directly with the exhaust pipe of engine；The lower pressure stage turbines are coaxially connected with low-pressure stage compressor, institute
The high-pressure turbine stage stated coaxially is connected with high pressure stage compressor, and the high-pressure turbine stage is variable-section turbomachine；
The gas recirculation system includes high pressure exhaust gas recirculation circuit and low pressure exhaust gas recirculation circuit, engine exhaust
Pipe is divided into two branches, and a branch connects high-pressure turbine stage entrance, and another branch road is equipped with exhaust gas recycling cooling
Device and high pressure exhaust gas recycle valve, the outlet of high pressure exhaust gas recycle valve are connected between high pressure stage compressor and air flue water jet
On air inlet pipeline, pipeline where the high pressure exhaust gas recycle valve and cooler for recycled exhaust gas forms high pressure exhaust gas recycling
Circuit, grain catcher outlet are divided into the first branch and the second branch, and first branch connection air is equipped in the second branch
Low pressure exhaust gas recycle valve, the outlet of the low pressure exhaust gas recycle valve are connected between air cleaner and low-pressure stage compressor
Air inlet pipeline on, the second branch where the low pressure exhaust gas recycle valve forms low pressure exhaust gas recirculation circuit；
The water injection system include water tank, be equipped in the water tank two position alarm, level monitoring system and
Heating unit, the tank outlet quality of connection flowmeter entrance, mass flowmenter outlet connection air intake duct water spray
Device water inlet, the air intake duct water jet is mounted on engine air inlet tube road, in the pipe of the engine charge pipeline
Intracavitary and heater grid is installed perpendicular to the flow direction of air, the air intake duct water jet passes through engine charge pipeline
Tube wall and the water jet alignment heater grid of water jet set, the heater grid is connected with heating unit；
The control system includes control unit, and the control unit is given up by control line and air intake duct water jet, high pressure
Gas recycle valve, low pressure exhaust gas recycle valve, turbine are connected with engine, described control unit acquisition engine condition signal
And emissions concentration signal and engine operation condition signal, the water spray pulsewidth and water spray moment for generating air intake duct water jet are believed
Number, the opening amount signal of high pressure exhaust gas recycle valve and low pressure exhaust gas recycle valve, the opening amount signal of variable-section turbomachine.
2. the compression-ignition engine machine low-temperature burning system according to claim 1 with air flue water spray, it is characterised in that：Institute
Stating air intake duct water jet has multiple, and multiple air intake duct water jets are equally spaced in the cross-sectional periphery of engine charge pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019495.0A CN108087157A (en) | 2018-01-09 | 2018-01-09 | A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810019495.0A CN108087157A (en) | 2018-01-09 | 2018-01-09 | A kind of compression-ignition engine low-temperature burning system with air intake duct spraying function |
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| CN108087157A true CN108087157A (en) | 2018-05-29 |
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Cited By (6)
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| CN108561246A (en) * | 2018-06-04 | 2018-09-21 | 广西玉柴机器股份有限公司 | Diesel engine cooling EGR discharge treating systems |
| CN109611242A (en) * | 2019-01-28 | 2019-04-12 | 天津大学 | A kind of high-efficiency cleaning burning diesel |
| CN110206641A (en) * | 2019-04-29 | 2019-09-06 | 天津大学 | Compression ignition engine and its method for realizing low temperature combustion mode |
| CN111927669A (en) * | 2020-08-03 | 2020-11-13 | 北京理工大学 | Ignition type aviation heavy oil piston engine system and implementation method thereof |
| CN112196682A (en) * | 2020-10-15 | 2021-01-08 | 潍柴动力股份有限公司 | Method and device for controlling an exhaust gas recirculation valve |
| CN114622987A (en) * | 2020-12-14 | 2022-06-14 | 保时捷股份公司 | Method for filling a combustion engine with an exhaust gas recirculation system with water |
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| CN110206641B (en) * | 2019-04-29 | 2021-04-02 | 天津大学 | Compression ignition engine and method for realizing low-temperature combustion mode thereof |
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