CN103026020A - Aftertreatment burner air supply system - Google Patents
Aftertreatment burner air supply system Download PDFInfo
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- CN103026020A CN103026020A CN2011800367320A CN201180036732A CN103026020A CN 103026020 A CN103026020 A CN 103026020A CN 2011800367320 A CN2011800367320 A CN 2011800367320A CN 201180036732 A CN201180036732 A CN 201180036732A CN 103026020 A CN103026020 A CN 103026020A
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- Prior art keywords
- air
- burner
- feed line
- particulate filter
- waste gas
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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
- F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
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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
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
- F02B37/164—Control of the pumps by bypassing charging air the bypassed air being used in an auxiliary apparatus, e.g. in an air turbine
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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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
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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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
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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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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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
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the 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
- F02M26/22—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
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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
- 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
- F02M35/10229—Fluid connections to the air intake system; their arrangement of pipes, valves or the like the intake system acting as a vacuum or overpressure source for auxiliary devices, e.g. brake systems; Vacuum chambers
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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)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A system and a method for efficient regeneration of a diesel particulate filter used in the exhaust system of a diesel engine, are disclosed. In various systems, a burner is incorporated into the exhaust stream, and prior to the diesel particulate filter. Because the burner requires precise amounts of fuel and air to operate properly, an air flow delivery device, such as a positive displacement pump or blower is incorporated into the system to channel boost air to the burner. Alternatively, a bypass line may be used in conjunction with a pressure regulator, wherein the bypass line diverts the boost air from the pump or blower, while the pressure regulator controls the final pressure to the burner.
Description
Technical field
System and method of the present invention relates to the diesel particulate filter effective regeneration that uses in the vent systems of diesel engine.Exactly, this system and method is related to burner and supplies with accurately fuel and the air of amount, suitably to raise and to keep delivery temperature, realizes effective filter regeneration.
Background technique
Diesel engine is effective, durable and economical.Yet diesel exhaust can be harmful to environment and the mankind.In order to reduce this kind harm, such as each government of the U.S. and European Union stricter dual fuel of diesel engine regulation has been proposed.These environment regulations require diesel engine to satisfy the emission standard identical with petrol engine.Usually, in order to satisfy these regulations and standard, diesel engine system needs optional equipment and retrofits.
For example, lean-burn automotive operates by the oxygen that utilizes value to exceed to finish fuel combustion to measure improved fuel efficiency is provided.These motors are called " oil-poor " or " lean fuel mixture " operation.Yet the raising of fuel efficiency is owing to the undesirable pollutant effulent that produces nitrogen oxide (NOx) form produces deviation.Nitrogen oxides emissions is regulated by regular effulent testing requirement.A kind of method for reducing the NOx effulent of oil-poor internal-combustion engine is called selective catalytic reduction.When for reducing the NOx effulent of diesel engine, selective catalytic reduction comprises atomize urea is injected in the engine exhaust stream relevant with one or more selected motors.
For reducing NO
xThe another kind of method of effulent is EGR (EGR), and it is that the technology in the cylinder is got back in a kind of a part of recirculation with engine exhaust.Adopt the motor of EGR to make a part of recirculation of engine exhaust get back to engine intake.The waste gas of oxygen depleted is mixed in the fresh air that enters the firing chamber.Reduce oxygen and can produce low-temperature burning, to reduce nearly 50% NO
xEffulent.Then, can the waste gas of recirculation be cooled off.This kind " through the EGR of cooling " can reduce effulent to a greater degree by further reduction combustion temperature.When using the DPF(diesel particulate filter) time, effulent can reduce and reaches 90%.
DPF comprises diesel oxidation catalyst (DOC), and this oxidation catalyst is the stupalith that can heat up in DPF.Along with time lapse, cigarette ash and particulate matter accumulate among the DPF, process and can dispose particulate matter in periodic interval by regeneration.Regeneration is the processing of taking out the cigarette ash that accumulates from filter.This regeneration is processed passively (from normal operating engine waste heat or by adding catalyzer to filter) or by (above 600 ° of C to burn particulate matter) in the high heat introducing vent systems are carried out on one's own initiative.This high temperature need to keep 10 to 30 minutes constantly to realize effective regeneration.
Usually, the dpf regeneration system depends on upstream fuel injection (inject cylinder or inject waste gas) and burns for the injection fuel that is positioned at the DOC between fuel injector and the DPF, to realize necessary intensification.Yet, under the riving condition that produces low engine exhaust temperature, for example in the stop-and-go traffic, the DPF effective regeneration problem that can become.Low temperature can reduce DOC and reach initialization and keep the temperature required chance of dpf regeneration.In addition, if the temperature of DOC inlet is fallen under the required temperature extremes (250 ° of C to 300 ° of C that combustion fuel is required), then the initiative regeneration situation can be interrupted, so that DOC can't support regeneration to process.Therefore, in the lower and unsettled situation of delivery temperature, need to improve the igniting of DOC.
A kind of method that realizes above-mentioned purpose is to change the motor operation conditions to improve delivery temperature.Another kind method is to add burner for vent systems.If the use burner then needs to supply with fuel and the air of accurate value, with suitably operation.The air of delivery of precise quantities value can be realized by many modes under appropriate pressure, and every kind of mode has they self impact separately for product cost and fuel efficiency for engine.
In order to attempt to keep suitable used heat and fuel combustion realizes effective regeneration, the system of proposition comprises that burner comes the part of waste gas is heated.Yet, effectively move in order to make burner, fuel and the air of accurate value need to be provided.The air of delivery of precise quantities value can be realized by variety of way under appropriate volume and pressure, comprise and use positive displacement pump apparatus or by using supercharging device (blower) and pressure regulator that every kind of scheme has they self impact separately for product cost and fuel efficiency for engine.
System and method of the present invention is by providing a kind of system and method that is used for particulate filter regeneration of burner that uses to solve these and other problem, this burner is supplied with has the fuel of accurate value and air to flow with thermal exhaust, and effective and efficient dpf regeneration is provided thus.
Summary of the invention
Disclose a kind of system and method be used to making diesel particulate filter regeneration.Generally speaking, this system comprises vent systems, burner, feed line, the air flow delivery device, air stream modulating valve and particulate filter, this vent systems is used for having the diesel engine in FAI Fresh Air Intake road and waste gas output road, be connected in to burner fluid waste gas output road, this feed line is connected in intake duct and burner, this air flow delivery device for example is positive-displacement pump or blower and is positioned in the feed line, be connected in the feed line air stream modulating valve fluid, be used for the air stream from inlet duct flow to burner is controlled, and particulate filter is connected to burner fluid in waste gas output road after.
In another embodiment, system also can comprise pressure regulator, and this pressure regulator is in feed line and burner.Need not under the situation of pump, pressure regulator is controlled the final pressure to burner.Outside the processing pressure regulator, this system can comprise bypass line, need not under the pressure condition of pump, and this bypass line makes air stream turn to around pump.In this embodiment, this system also comprises three-way control valve, and this three-way control valve has import and the first and second outlets, and this import is used for admitting the air that boosts to feed, and first and second export and be connected in respectively bypass line and pump fluid, is used for independently operation.
Also disclose a kind of method be used to making diesel particulate filter regeneration.The method comprises the steps: to provide vent systems, and this vent systems is used for having the diesel engine of FAI Fresh Air Intake stream and waste gas output quantity; A part of pipe of waste gas output quantity is sent towards the burner that is connected in particulate filter; The air that boosts of predetermined volume is delivered to burner from FAI Fresh Air Intake stream; Keep the predetermined regeneration temperature of the waste gas output quantity from combustor flow to particulate filter; And make particulate filter regeneration.
From following detailed description and respective drawings, can more easily understand these and other embodiment and their advantage.
Description of drawings
Fig. 1 is the schematic representation that is used in system in the exhaust treatment system of motor, that be used for making diesel particulate filter regeneration;
Fig. 2 is the schematic representation that is used in another embodiment of system according to the invention in the exhaust treatment system of motor, that be used for making diesel particulate filter regeneration; And
Fig. 3 is the schematic representation that is used in the another embodiment of system according to the invention in the exhaust treatment system of motor, that be used for making diesel particulate filter regeneration.
Embodiment
Generally speaking, and referring to engine exhaust system shown in Figure 1 10, show turbo charged internal-combustion engine 12, this internal-combustion engine has FAI Fresh Air Intake road 12a and waste gas output road 12b.Engine exhaust system 10 comprises exhaust-gas treatment system, and this exhaust-gas treatment system comprises cooler for recycled exhaust gas 14, has turbosupercharger 16 and the charger-air cooler 20 of turbocharger compressor 18.These structures will be in this article by substantially with reference to and in the accompanying drawings identification, but because each in these pump-down process structures is well known to those skilled in the art, thereby do not provide the detailed description for the operation of each structure.
The exhaust-gas treatment system that proposes also comprises diesel particulate filter (DPF) 22, and this diesel particulate filter is for the particulate matter of collecting from waste gas output road 12b.Finally, DPF need to clean or regenerate, to realize effective and lasting operation.A kind of filter regenerating method is to use high-temp waste gas.The rising exhaust gas temperature can realize by some modes, comprises burner or burner nozzle 24 are added into vent systems.Because burner 24 needs to supply with fuel that accurate value is arranged and air with suitably operation, proposed each mode and realized the air supply that provides required.A kind of mode comprises makes vent systems and especially free-air diffuser comprise Air Flow/pressure-feeding apparatus, for example positive-displacement pump or booster fan.The second way comprises makes vent systems comprise positive-displacement pump or blower and pressure regulator.Term " pump " and " blower " use in the text interchangeably, yet are understood that they refer to the air flow delivery device.When the air by-pass that boosts is crossed pump or blower, but also working pressure regulator.
Therefore, the system that proposes can be under appropriate pressure be delivered to burner 24 with the air of pre-determined amount, thereby is included under the condition of lower engine speed and power level, realizes that effective and efficient DPF22 regenerates.
Referring to Fig. 1, the embodiment of the vent systems that comprises DPF22 is shown, this DPF disposes by burner 24.Vent systems 10 comprises feed line 30, and this feed line is arranged in after the turbocharger compressor 18 of FAI Fresh Air Intake road 12a.Be positive-displacement pump or blower according to what use, feed line 30 air that will unregulatedly boost guides and is fed in positive-displacement pump or the blower 26, and then this positive-displacement pump or blower are guided to needed air stream in the burner 24.Positive-displacement pump 26 is carried specific air stream volume based on given pump speed.By measuring the pressure and temperature of the unregulated air that boosts, can calculate and select pump speed to carry the air of extra fine quality stream.Control unit of engine (ECU) (not shown) can electrically be connected in positive-displacement pump 26 and control the operation of this positive-displacement pump, and the sensor (not shown) also can cover in the system, to read the pressure and temperature of the unregulated air that boosts, work to operate thus positive-displacement pump in conjunction with ECU.For further pilot pressure and flow, be connected in the feed line 30, in order to control by the air stream of feed line to burner 24 air stream modulating valve or safety check 32 fluids.Safety check also can be controlled by ECU.
Referring to Fig. 2, another embodiment of vent systems is shown, this vent systems comprises positive emptying pump or blower 26, bypass line 34 and pressure regulator 36.Boost when being higher than the burner pressure demand at air, advantageously can control because the air pressure that positive-displacement pump or blower 26 produce.In this case, pressure regulator 26 can be installed in feed line 30 between positive emptying pump or blower 26 and the burner 24.Pressure regulator 36 is controlled Air Flow and pressure to burner 24 together in conjunction with safety check 32.Then, burner 24 can suitably operate, exhaust gas temperature is increased to the required level of DPF22 effective regeneration.
Perhaps, actuatable bypass line 34, but not make the air stream that boosts flow through pump 26.The pressure of air is in sufficiently high level to satisfy the burner pressure demand if boost, and then bypass line 34 makes air stream walk around pump 26 to turn to, and need not to activate this pump.Control make the air that boosts flow through pump 26 still flow through bypass line 34 can be by controlling device, the operation that for example covers the three-way control valve 38 in the feed line 30 realizes.Modulating valve 38 comprises import 38a and the first and second outlet 38b, 38c, wherein is connected in feed line 30 import and outlet fluid.In one embodiment, be connected in the first outlet 38b, and pump 26 is connected in the second outlet 38c of three-way control valve 38 bypass line 34 fluids.The setting of modulating valve 38, pump 26 and bypass line 34 can change according to the demand of motor and vent systems.The operation of modulating valve 38 can be by not shown from ECU() live signal control.Be used for the signal of modulating valve 38 based on pressure and the air stream reading of the air that boosts.The sensor (not shown), be temperature transducer or pressure transducer be used for will be relevant with the feature of air stream feed information to ECU, operate again modulating valve 38 and send with the air that will boost and pass through bypass line 34 or pump or blower.
In many situations, the air requirements of burner 24 is approximate to be 10% of whole engine airflow demand.Yet under lower engine speed and power level, for example under stop-and-go riving condition, pump or blower 26 need to be supplied with essential air stream and pressure to burner 24, make DPF22 regeneration with heat exhaust gases stream.Any additional air that is extracted in pump or the blower 26 need to be mated with turbosupercharger 16.Therefore, when using pump or blower, advantageously directly from FAI Fresh Air Intake road 12a, extract the air that boosts, thereby can not affect turbosupercharger 16 and turbocharger compressor 18.Perhaps, can there be the sufficient air pressure of boosting, with next to burner 24 supplies with bypass line, and need not to use as described above pump or blower.The operation of pump or blower can be as previously mentioned by not shown from ECU() live signal control.
Fig. 3 shows can be before the fresh air that boosts arrives turbocharger compressor 18 or arrive the embodiment who extracts the fresh air that boosts after the turbocharger compressor.In this embodiment, have two independent feed line, the first feed line 40 is directly connected in FAI Fresh Air Intake road 12a and guides positive-displacement pump into or blower 26.Be provided with in addition the first air stream modulating valve 44, this first air stream modulating valve is regulated the air stream that flow to main feed from pump or blower 26 and send pipeline 30 and finally flow to burner 24.Under the condition of lower engine speed and power level, namely need to present under the situation of additional air to burner 24, this kind setting is particularly useful.This embodiment's favourable part is, directly obtains this air that boosts from free-air diffuser 12a and before the air that boosts arrives turbocharger compressor 18, therefore reduces the impact for turbosupercharger.Then, air is sent by pressure regulator 36 by pipe and finally passes to burner 24.
In another embodiment, equally as shown in Figure 3, be provided with the second feed line 42, this second feed line is connected to after the turbocharger compressor 18.This feed line 42 also comprises the second air stream modulating valve 46, and the air that boosts that this second air stream modulating valve send pipeline 30 to flowing to main feed, flow through pressure regulator 36 and flow to burner 24 is regulated.This kind setting is similar to embodiment shown in Figure 2.Owing to do not use pump or blower in this arranges, thereby the final air pressure that 36 pairs of pressure regulators flow to burner 24 is controlled.In the stage of high engine speed and power level, this kind setting is useful.
Claims (26)
1. system that is used for making diesel particulate filter regeneration, described system comprises:
Vent systems, described vent systems are used for having the diesel engine in FAI Fresh Air Intake road and waste gas output road;
Burner is connected in to described burner fluid described waste gas output road;
Feed line, described feed line are connected in described free-air diffuser and described burner;
Positive-displacement pump, described positive-displacement pump are positioned in the described feed line;
The air stream modulating valve is connected in the described feed line described air stream modulating valve fluid, flow to the air stream of described burner from described free-air diffuser in order to control; And
Particulate filter, described particulate filter are connected to after described burner in the described waste gas output road fluid.
2. the system as claimed in claim 1 is characterized in that, described FAI Fresh Air Intake road provides air for described vent systems and described feed line.
3. system as claimed in claim 2 is characterized in that, described FAI Fresh Air Intake road provides the unregulated air stream that boosts for described positive-displacement pump.
4. the system as claimed in claim 1 is characterized in that, described positive-displacement pump is positioned in described feed line before the described air stream modulating valve.
5. system as claimed in claim 4 is characterized in that, described pump with predetermined air flow delivery to described burner.
6. the system as claimed in claim 1 is characterized in that, described air stream modulating valve is safety check.
7. the system as claimed in claim 1 is characterized in that, described system also comprises three-way control valve, and described three-way control valve is positioned in the described feed line, and described three-way control valve has import and the first and second outlets.
8. system as claimed in claim 7 is characterized in that, described system also comprises bypass line, is connected in the first outlet of described three-way control valve described bypass line fluid.
9. system as claimed in claim 7 is characterized in that, described pump is connected in the second outlet of described three-way control valve in described feed line.
10. system as claimed in claim 9 is characterized in that, described bypass line makes air turn to around described pump and flow to described air stream modulating valve and described burner.
11. the system as claimed in claim 1 is characterized in that, described system also comprises pressure regulator, and described pressure regulator is positioned at before the described burner in described feed line.
12. a system that is used for making diesel particulate filter regeneration, described system comprises:
Vent systems, described vent systems are used for having the diesel engine in FAI Fresh Air Intake road and waste gas output road;
Burner is connected in to described burner fluid described waste gas output road;
Feed line, described feed line are connected in described free-air diffuser and described burner;
Three-way control valve, described three-way control valve have import and the first and second outlets, are connected in described feed line wherein said import and outlet fluid;
The air flow delivery device, described air flow delivery device is positioned in the described feed line in the first outlet port of described modulating valve;
Bypass line, described bypass line is positioned in the described feed line in the second outlet port of described modulating valve;
Pressure regulator is connected in the described feed line described pressure regulator fluid, in order to an air stream that flow to described burner from described bypass line and described air flow delivery device is controlled; And
Particulate filter, described particulate filter are connected to after described burner in the described waste gas output road fluid.
13. a system that is used for making diesel particulate filter regeneration, described system comprises:
Vent systems, described vent systems are used for having the diesel engine in FAI Fresh Air Intake road and waste gas output road, and turbocharger compressor is passed through in the connection of described FAI Fresh Air Intake road;
Burner is connected in to described burner fluid described waste gas output road;
The first feed line, described the first feed line is directly connected in described free-air diffuser;
The air flow delivery device, described air flow delivery device is positioned at described the first feed line;
The first air stream modulating valve is connected in described the first feed line described the first air stream modulating valve fluid, flow to the air stream that described positive-displacement pump flow to described burner again in order to control from described free-air diffuser;
The second feed line, described the second feed line is connected in described free-air diffuser after described turbocharger compressor;
The second air stream modulating valve is connected in described the second feed line described the second air stream modulating valve fluid, flow to the air stream of pressure regulator and described burner from described free-air diffuser in order to control; And
Particulate filter, described particulate filter are connected to after described burner in the described waste gas output road fluid.
14. system as claimed in claim 13, it is characterized in that, described system also comprises electronic control module, and described electronic control module is used for activating described the first air stream modulating valve and described the second air stream modulating valve one, in order to will be scheduled to air flow delivery to described burner.
15. system as claimed in claim 13 is characterized in that, described system also comprises pressure regulator, and described pressure regulator is positioned at before the described burner.
16. system as claimed in claim 13 is characterized in that, described air flow delivery device is in described positive-displacement pump and the blower.
17. a method that is used for making diesel particulate filter regeneration, described method comprises the steps:
Vent systems is provided, and described vent systems is used for having the diesel engine of FAI Fresh Air Intake stream and waste gas output stream;
A part of pipe of described waste gas output stream is sent towards the burner that is connected in described particulate filter;
The air that boosts of predetermined volume is delivered to described burner from described FAI Fresh Air Intake stream;
Keep the predetermined regeneration temperature of the waste gas output quantity from described burner to described particulate filter; And
Make particulate filter regeneration.
18. method as claimed in claim 17 is characterized in that, carries the step of the air that boosts of predetermined volume to comprise conveying by feed line, described feed line enters stream with described fresh air and is connected in described burner.
19. method as claimed in claim 18 is characterized in that, carries the step of the air that boosts of predetermined volume also to comprise at least one air stream modulating valve is added into described feed line.
20. method as claimed in claim 17 is characterized in that, the step that the pressure of the air that boosts that flow to described burner is regulated is included in the air flow delivery device is provided in the described feed line.
21. method as claimed in claim 20 is characterized in that, the step that the pressure of the described air that boosts is regulated is included between described burner and the described air flow delivery device pressure regulator is provided.
22. method as claimed in claim 17 is characterized in that, the step that the pressure of the described air that boosts is regulated comprises provides supercharging device.
23. method as claimed in claim 22 is characterized in that, described supercharging device comprises blower.
24. a system that is used for making diesel particulate filter regeneration, described system comprises:
Vent systems, described vent systems are used for having the diesel engine in FAI Fresh Air Intake road and waste gas output road;
Burner is connected in to described burner fluid described waste gas output road;
Feed line, described feed line are connected in described free-air diffuser and described burner;
Feedway, described feedway are used for the air of prearranging quatity is transported to described feed line from described FAI Fresh Air Intake road;
The air stream modulating valve is connected in the described feed line described air stream modulating valve fluid, flow to the air stream of described burner from described free-air diffuser in order to control; And
Particulate filter, described particulate filter are connected to after described burner in the described waste gas output road fluid.
25. system as claimed in claim 24 is characterized in that, comprises positive-displacement pump for delivery of the feedway of described predetermined air amount.
26. system as claimed in claim 24 is characterized in that, comprises booster fan for delivery of the feedway of described predetermined air amount.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36766710P | 2010-07-26 | 2010-07-26 | |
| US61/367,667 | 2010-07-26 | ||
| PCT/US2011/034605 WO2012015505A1 (en) | 2010-07-26 | 2011-04-29 | Aftertreatment burner air supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103026020A true CN103026020A (en) | 2013-04-03 |
Family
ID=45530424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800367320A Pending CN103026020A (en) | 2010-07-26 | 2011-04-29 | Aftertreatment burner air supply system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130227934A1 (en) |
| EP (1) | EP2598729A4 (en) |
| CN (1) | CN103026020A (en) |
| WO (1) | WO2012015505A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268106A (en) * | 2018-09-06 | 2019-01-25 | 湖南省吉安特技术有限公司 | One kind clearing up regenerated device and method for DPF or automotive catalytic converter |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012024260A1 (en) * | 2012-12-12 | 2014-06-12 | Man Truck & Bus Ag | Method and device for raising the exhaust gas temperature in the exhaust tract of a turbocharged internal combustion engine |
| EP2782035B1 (en) | 2013-03-19 | 2021-06-09 | Nxp B.V. | Smartcard, smartcard system and method for configuring a smartcard |
| JP6292143B2 (en) * | 2015-02-10 | 2018-03-14 | トヨタ自動車株式会社 | vehicle |
| MX2018010181A (en) | 2016-02-24 | 2019-07-08 | Jtsmcdp Llc | Systems, devices, and methods for regenerating a particulate filter. |
| US20210285451A1 (en) * | 2018-10-02 | 2021-09-16 | Kenneth R. Soerries | Liquid Hydrocarbon Transfer System And Assembly |
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| US4936093A (en) * | 1987-09-08 | 1990-06-26 | Webasto Ag Fahrzeugtechnik | Soot-filtering unit for the exhaust gas section of a diesel internal combustion engine |
| JPH0586845A (en) * | 1991-09-30 | 1993-04-06 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
| JPH05240023A (en) * | 1992-02-28 | 1993-09-17 | Tonen Corp | Exhaust gas purifying device of diesel engine |
| EP0715061A1 (en) * | 1994-12-03 | 1996-06-05 | Firma J. Eberspächer | Exhaust gas after-treatment system of a supercharged internal combustion engine with a particulate filter and a burner |
| DE202006011547U1 (en) * | 2006-07-25 | 2007-12-06 | Mann + Hummel Gmbh | Exhaust system of a diesel engine |
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| US4589254A (en) * | 1983-07-15 | 1986-05-20 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Regenerator for diesel particulate filter |
| US5081836A (en) * | 1990-12-24 | 1992-01-21 | Caterpillar Inc. | Oxygen supply system for a regenerable particulate filter assembly of a diesel engine |
| DE10158569A1 (en) * | 2001-11-29 | 2003-06-12 | Bosch Gmbh Robert | Method and arrangement for the regeneration of diesel particulate filters |
| US7409823B2 (en) * | 2003-06-30 | 2008-08-12 | Delphi Technologies, Inc. | Method and apparatus for delivery of supplemental material to an exhaust gas feedstream with supplemental air assistance |
| DE102006043099A1 (en) * | 2005-11-14 | 2007-06-28 | Robert Bosch Gmbh | Air quantity control for a device for generating reducing agent |
| FR2929332B1 (en) * | 2008-04-01 | 2012-12-14 | Renault Sas | SYSTEM AND METHOD FOR DIAGNOSING THE OPERATING STATE OF A GAS INTAKE DEVICE FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE. |
| WO2009128985A1 (en) * | 2008-04-15 | 2009-10-22 | G.W. Lisk Company, Inc. | System for purging a device |
| DE102008032604A1 (en) * | 2008-07-11 | 2010-01-14 | Volkswagen Ag | Exhaust gas flow condition adjusting method for e.g. diesel engine of motor vehicle for desulfurization of catalysts, involves increasing or adjusting pressure gradient from diverging area to junction area |
-
2011
- 2011-04-29 WO PCT/US2011/034605 patent/WO2012015505A1/en active Application Filing
- 2011-04-29 EP EP11812882.6A patent/EP2598729A4/en not_active Withdrawn
- 2011-04-29 CN CN2011800367320A patent/CN103026020A/en active Pending
- 2011-04-29 US US13/812,570 patent/US20130227934A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936093A (en) * | 1987-09-08 | 1990-06-26 | Webasto Ag Fahrzeugtechnik | Soot-filtering unit for the exhaust gas section of a diesel internal combustion engine |
| JPH0586845A (en) * | 1991-09-30 | 1993-04-06 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
| JPH05240023A (en) * | 1992-02-28 | 1993-09-17 | Tonen Corp | Exhaust gas purifying device of diesel engine |
| EP0715061A1 (en) * | 1994-12-03 | 1996-06-05 | Firma J. Eberspächer | Exhaust gas after-treatment system of a supercharged internal combustion engine with a particulate filter and a burner |
| DE202006011547U1 (en) * | 2006-07-25 | 2007-12-06 | Mann + Hummel Gmbh | Exhaust system of a diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268106A (en) * | 2018-09-06 | 2019-01-25 | 湖南省吉安特技术有限公司 | One kind clearing up regenerated device and method for DPF or automotive catalytic converter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012015505A1 (en) | 2012-02-02 |
| US20130227934A1 (en) | 2013-09-05 |
| EP2598729A1 (en) | 2013-06-05 |
| EP2598729A4 (en) | 2015-07-08 |
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Application publication date: 20130403 |