CN206987911U - Fuel injection system for DPF initiative regenerations - Google Patents
Fuel injection system for DPF initiative regenerations Download PDFInfo
- Publication number
- CN206987911U CN206987911U CN201720546560.6U CN201720546560U CN206987911U CN 206987911 U CN206987911 U CN 206987911U CN 201720546560 U CN201720546560 U CN 201720546560U CN 206987911 U CN206987911 U CN 206987911U
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- Prior art keywords
- fuel
- oil
- injection system
- air
- fuel oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/02—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being compressed air, e.g. compressed in pumps
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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
- F01N3/36—Arrangements for supply of additional fuel
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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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
-
- 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
-
- 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
- F01N3/0253—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 adding fuel to exhaust gases
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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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
- F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
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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
Abstract
A kind of fuel injection system for DPF initiative regenerations is the utility model is related to, including：For supplying the fuel oil supply system of fuel oil；For supplying the compressed-air supply system of compressed air；Hybrid injection system, it is used for the mixing and injection of realizing fuel oil and compressed air；And support, wherein, fuel oil supply system, compressed-air supply system and hybrid injection system are integrated on support, for providing the fuel oil and air of mixing jetting, so as to provide fuel for DPF initiative regeneration.The utility model further relates to a kind of bench test device of diesel engine, provides the fuel oil and air of mixing jetting for the bench test device by above-mentioned fuel injection system, so as to provide fuel for DPF initiative regeneration.
Description
Technical field
It the utility model is related to a kind of fuel injection system for being used for diesel particulate trap (DPF) initiative regeneration, the combustion
Electronic fuel injection system is particularly suitable for application in the bench test device of diesel engine.
Background technology
Currently, problem of environmental pollution (especially air pollution problems inherent) becomes increasingly severe, the health to people
Cause many detrimental effects.The exhaust emissions of diesel engine is important air pollution source, wherein, soot dust granule is bavin
One of most important pollutant in the exhaust emissions of oil turbine.In order to solve the particle caused by diesel engine exhaust emission
Thing pollution problem, diesel particulate trap (DPF, Diesel Particulate Filter) are to be used for reducing diesel engine at present
The maximally effective equipment of soot dust granule discharge.But with the extension of working time, the soot dust granule that DPF accumulates inside can be got over
Come more, can not only influence the trapping effect of particulate matter, and the fuel oil incomplete combustion of diesel engine can be made.In this situation
Down, it is necessary to spray fuel oil (i.e. HC) into DPF and be allowed to burning to improve DPF internal temperature, so as to inside accumulation
Grain thing carries out oxidizing fire processing (oxidizing fire of particulate matter usually requires about 600 DEG C of high temperature), thus eliminates inside DPF
The soot dust granule of accumulation, to realize DPF initiative regeneration.
Although dpf regeneration technology both domestic and external is still in sustained improvement and development, in the platform experiment of diesel engine
Also without the fuel injection system of standard Maturation in device.Working environment residing for the bench test device of diesel engine is relative
Complexity, for it is simple in construction, easy to use and can realize in diesel engine exhaust road fuel oil injection carry out essence
Demand be present in the fuel injection system really controlled.In practice, it is necessary to which the technical problem solved is mainly comprising two aspects：One side
Face will fully take into account the complexity of dpf regeneration process, must in order to allow DPF accurately to be regenerated in the suitable time
The control accuracy and fuel-injected distributed effect of fuel injection system must be ensured；On the other hand, in face of diesel engine machine frame
The complicated experimental situation of laboratory internal, in order to improve the efficiency of experiment, it is necessary to fully be optimized to fuel injection system, with
Realize the simple and efficient installation of system and portable mobile arrangement.
Utility model content
The utility model provides a kind of brand-new fuel injection system for DPF initiative regenerations, fuel oil injection system
System is particularly suitable for application in the bench test device of diesel engine.In the test process of diesel engine bench test device
In, fuel injection system provided by the utility model can realize DPF at the temperature of setting and diesel engine operating condition
Initiative regeneration process, so as to reach test and investigate DPF performances purpose.In order to realize the energy in the laboratory environment of complexity
Enough purposes for quickly and efficiently arranging and installing fuel injection system, fuel injection system is also designed as portable by the utility model
Formula.
On the one hand, the utility model provides a kind of fuel injection system for DPF initiative regenerations, including：
Fuel oil supply system, it is used to supply fuel oil；
Compressed-air supply system, it is used to supply compressed air；
Hybrid injection system, it is used for the mixing and injection of realizing fuel oil and compressed air；And
Support,
Wherein, fuel oil supply system, compressed-air supply system and hybrid injection system are integrated on support, for
The fuel oil and air of mixing jetting are provided, so as to provide fuel for DPF initiative regeneration.
Support can integrate fuel oil supply system, compressed-air supply system and hybrid injection system, realize
The matching of subsystems is finally to meet demand of the DPF initiative regeneration to fuel oil.
In one embodiment, the fuel oil supply system, the compressed-air supply system and the mixing jetting system
System is separately mounted to the both sides of the support.Thus, matching of the subsystems in smaller space, and shape are not only realized
Into for providing fuel oil, Highgrade integration fuel injection system for DPF initiative regeneration.
In one embodiment, deflecting roller is installed in the bottom of the support, and installed in the top of the support
There is handle.By installing deflecting roller and handle on support, possessing a whole set of fuel oil supply system can realize what is moved freely
Portability.
In one embodiment, the fuel oil supply system includes：Fuel oil filter, fuel pump, oil return valve and fuel oil stream
Amount controller, fuel oil are filtered via the fuel oil filter, pressurizeed via the fuel pump, via the oil return valve
Adjust fuel pressure and carry out flow control via the fuel flow controller and turn into the hybrid injection system and carry
The quantitative high-pressure fuel oil of confession.
In one embodiment, the compressed-air supply system includes：Compressed air regulating valve and compressed air conveying
Pipeline, flow through the compressed air of compressed air tunnel turns into mixing jetting under the adjustment effect of compressed air regulating valve
The quantitative high-pressure air that system provides.
In one embodiment, the hybrid injection system includes：Oil-gas mixer and nozzle, it is right in oil-gas mixer
Quantitative high-pressure fuel oil and quantitative high-pressure air are mixed, and the fuel oil and air of mixing jetting are then provided by nozzle, so as to
Fuel is provided for DPF initiative regeneration.
In one embodiment, the support side installation fuel oil filter, fuel pump, compressed air regulating valve and
Compressed air tunnel, oily rail, oil return valve, oil meter, fuel flow controller, shutoff valve are installed in the opposite side of the support
And check valve.
In one embodiment, oil meter is arranged on one end of oily rail, to measure and indicate the fuel pressure in oily rail,
This one end for being provided with oil meter of oily rail is also equipped with oil return valve, so as to pass through oil return valve when the fuel pressure in oily rail is too high
To carry out oil pressure regulation, shutoff valve, check valve and fuel flow controller are installed in the other end of oily rail, so as to realize to combustion
The metered injection control of oil.
According to the fuel injection system provided by the utility model for DPF initiative regenerations, subsystems are realized
Effective integration.According to the duty requirements of diesel engine, the fuel oil through fuel oil supply system supply is with the supply of compressed air
The compressed air of system supply is mixed and sprayed in hybrid injection system, thus, it is possible to in diesel engine exhaust road
Fuel oil injection accurately controlled, so as to allow DPF to fully ensure that combustion in progress of suitable time accurately initiative regeneration
The control accuracy and fuel-injected distributed effect of Electronic fuel injection system.
On the other hand, the utility model additionally provides a kind of bench test device of diesel engine, by above-mentioned combustion
Electronic fuel injection system provides the fuel oil and air by proper proportion mixing jetting for the bench test device, so as to the master for DPF
Dynamic regeneration provides fuel.In view of the experimental situation residing for diesel engine bench test device is typically more complicated, can pass through
It is convenient and be moveably mounted and arrange the fuel injection system to significantly improve conventional efficient.
Brief description of the drawings
The following description to preferred embodiment of the present utility model is considered in conjunction with the accompanying drawings, it is of the present utility model each
Kind target, feature and advantage will become apparent.Accompanying drawing is only exemplary diagram of the present utility model, is not necessarily
It is drawn to scale.In the accompanying drawings, same reference represents same or similar part all the time.
Fig. 1 is the system overall schematic according to the fuel injection system of the present utility model for DPF initiative regenerations.
Fig. 2 is the system structure diagram according to the fuel injection system of the present utility model for DPF initiative regenerations.
Fig. 3 is the front view according to the fuel injection system of the present utility model for DPF initiative regenerations.
Fig. 4 is the top view according to the fuel injection system of the present utility model for DPF initiative regenerations.
Fig. 5 is the rearview according to the fuel injection system of the present utility model for DPF initiative regenerations.
Fig. 6 is the left view according to the fuel injection system of the present utility model for DPF initiative regenerations.
Reference numerals list in figure is as follows：
1st, fuel oil filter, 2, fuel pump, 3, oily rail, 4, oil return valve, 5, oil meter, 6, fuel flow controller, 7, dam
Valve, 8, check valve, 9, compressed air regulating valve, 10, oil gas blender, 11, nozzle, 12, support, 13, deflecting roller, 14, compression
Airflow pipe, 15, handle.
Embodiment
The preferred reality according to the fuel injection system of the present utility model for DPF initiative regenerations is introduced referring to the drawings
Apply example.The word content and accompanying drawing of specification are substantially only exemplary, and are not intended to limit institute in any way
Attached scope of the claims.
Unless otherwise stated, term used herein has the common skill of the technical field involved by the utility model
Art personnel are it can be generally understood that the implication arrived.Unless otherwise stated, term used in the specification and in the claims
" comprising " and "comprising" should be construed to open implication, that is to say, that " comprising " and "comprising" should be construed to and term
" comprising at least " or " comprising at least " is synonymous.
For drawbacks described above of the prior art, the utility model provides a kind of fuel oil for DPF initiative regenerations and sprayed
Penetrate system.Fig. 1 is the system overall schematic of the embodiment of fuel injection system, and Fig. 2 is the embodiment of fuel injection system
System structure diagram.Fig. 3 is the front view according to the fuel injection system of the present utility model for DPF initiative regenerations.Fig. 4
It is the top view according to the fuel injection system of the present utility model for DPF initiative regenerations.Fig. 5 is according to of the present utility model
Rearview for the fuel injection system of DPF initiative regenerations.Fig. 6 is to be used for DPF initiative regenerations according to of the present utility model
The left view of fuel injection system.
As shown in Figures 1 to 6, the fuel injection system for DPF initiative regenerations includes：Fuel oil for supplying fuel oil supplies
To system；For supplying the compressed-air supply system of compressed air；Hybrid injection system, it is used to realize that fuel oil and compression are empty
The mixing and injection of gas；And support, wherein, fuel oil supply system, compressed-air supply system and hybrid injection system are collected
Into on support, for providing the fuel oil and air of mixing jetting, so as to provide fuel for DPF initiative regeneration.Below
In the subsystems included by fuel injection system are described in detail.
In one embodiment, fuel oil supply system includes：Fuel oil filter 1, fuel pump 2, oil return valve 4 and fuel flow
Controller 6.In addition, fuel oil supply system can also include oily rail 3, oil pressure gauge 5, shutoff valve 7 and check valve 8 etc..Fuel oil is first
First pass through fuel oil filter 1 to be filtered, the fuel oil after filtering is pressurizeed via fuel pump 2.Fuel oil after supercharging is by defeated
Oil-piping is transported in oily rail 3, and now oil pressure gauge 5 can show the fuel pressure value in fuel-displaced rail 3.Sprayed when setting certain fuel oil
During injection pressure, according to the measured value of oil pressure gauge 5, oil return valve 4 is adjusted such that the oil in oily rail to the fuel pressure in oily rail 3
Pressure is stable in certain pressure value.By fuel flow controller 6 according to spray of the feedback signal of engine operating condition to high pressure fuel
Amount of jet is controlled.Finally, fuel oil flows through shutoff valve 7 and check valve 8 and reaches oil-gas mixer 10, turns into mixing jetting
The quantitative high-pressure fuel oil that system provides.
In one embodiment, compressed-air supply system includes：Compressed air regulating valve 9 and compressed air tunnel
14, compressed air is transported to air-fuel mixture under the adjustment effect of compressed air regulating valve 9 via compressed air tunnel 14
Device 10, turn into the quantitative high-pressure air provided to hybrid injection system.Compressed air regulating valve 9 is according to the feedback of engine operating condition
Signal is controlled to air mass flow, so as to realize rational air-fuel mixture ratio.Preferably, compressed air regulating valve 9 can be with
It is ratio adjusting valve.
In one embodiment, hybrid injection system includes：Oil-gas mixer 10 and nozzle 11, are supplied by fuel oil supply system
The quantitative high-pressure fuel oil given and by compressed-air supply system supply quantitative high-pressure air in oil-gas mixer 10 according to suitable
When ratio mixed, then by nozzle 11 provide mixing jetting fuel oil and air, for providing fuel for DPF,
So as to realize DPF initiative regeneration.
Reference picture 2 is to Fig. 6, in one embodiment, in order to realize the reasonable Arrangement of whole system, combustion of the present utility model
Electronic fuel injection system also includes being used for the support 12 for installing fuel oil supply system, compressed-air supply system and hybrid injection system.
That is, all parts of fuel injection system are all integrally mounted on the support 12.Support 12 preferably can be by
Square steel tubing manufactures.
In order to save space, fuel oil supply system, compressed-air supply system and hybrid injection system can be installed respectively
In the both sides of support 12.
In one embodiment, fuel oil filter 1, fuel pump 2, compressed air regulating valve are installed in the side of support 12
9 and compressed air tunnel 14.Oily rail 3, oil return valve 4, oil meter 5, fuel flow control are installed in the opposite side of support 12
Device 6, shutoff valve 7 and check valve 8.Fuel oil enters system by fuel oil filter 1, and then fuel oil is added by fuel pump 2
Pressure, and deliver fuel into the oily rail 3 of the opposite side positioned at support 12.
Oil meter 5 is arranged on one end of oily rail 3, to measure and indicate the fuel pressure in oily rail, in being provided with for oily rail 3
This one end of oil meter 5 is also equipped with oil return valve 4, and oil pressure tune is carried out by oil return valve 4 when the fuel pressure in oily rail 3 is too high
Section.Shutoff valve 7, check valve 8 and fuel flow controller 6 are installed in the other end of oily rail 3, fuel oil quantified so as to realize
Injection control.Outside pressure-air enters oil gas by compressed air tunnel 14 and compressed air regulating valve 9 and mixed
In device 10.Fuel oil in oily rail 3 enters oil gas blender 10 and with coming from compressed air tunnel 14 by Oil Guide pipeline
Compressed air mixed, be finally injected to via nozzle 11 in after-treatment system and initiative regeneration realized with assisting DPF.
In order to realize fuel injection system move freely and portability, can support 12 bottom install deflecting roller
13, and in the top mounting knob 15 of support.Preferably, four deflecting rollers 13 can be installed in the bottom of support 12.
According to the fuel injection system provided by the utility model for DPF initiative regenerations, subsystems are realized
Effective integration.According to the duty requirements of diesel engine, the fuel oil through fuel oil supply system supply is with the supply of compressed air
The compressed air of system supply is mixed and sprayed in hybrid injection system, thus, it is possible to in diesel engine exhaust road
Fuel oil injection accurately controlled, so as to allow DPF to fully ensure that combustion in progress of suitable time accurately initiative regeneration
The control accuracy and fuel-injected distributed effect of Electronic fuel injection system.
On the other hand, the utility model additionally provides a kind of bench test device of diesel engine, by above-mentioned combustion
Electronic fuel injection system provides the fuel oil and air by proper proportion mixing jetting for the bench test device, so as to the master for DPF
Dynamic regeneration provides fuel.In view of the experimental situation residing for diesel engine bench test device is typically more complicated, can pass through
The easily installation and movement of the fuel injection system are arranged to significantly improve conventional efficient.
Referring to Figures 1 and 2, the course of work of the fuel injection system of the present utility model for DPF initiative regenerations is as follows
It is described：First, flow through the fuel oil of fuel oil filter 1, fuel pump 2, oily rail 3 and fuel flow controller 6 and flow through compressed air
The pressure-air of conveyance conduit 14 and compressed air regulating valve 9 is mixed in accordance with the appropriate ratio in oil-gas mixer 10.
Then, the high-pressure injection of gas mixture is realized via nozzle 11, so as to provide fuel for DPF, for realizing DPF active
Regeneration.
The matching that fuel injection system of the present utility model realizes subsystems integrates, and can be according to engine
Operating mode and discharge signal fuel injection system is controlled, and then rational fuel mixture metered injection is realized, with side
Help DPF to carry out initiative regeneration, be achieved in the purpose of energy-saving and emission-reduction and environmental protection.In addition, the utility model also sprays fuel oil
System design is penetrated to be portable, so as to quickly and efficiently arrange and install fuel oil injection in the laboratory environment of complexity
System.
Although it will be appreciated by those skilled in the art that the foregoing describing specific embodiment, these embodiments are located
In the range of general idea of the present utility model.In the absence of in the case of clearly contradicted, the one or more of one embodiment
Technical characteristic can be advantageously incorporated into other embodiments, without departing from the scope of the utility model.All embodiments
In technical characteristic can be deleted and/or be combined to form new embodiment, these new embodiments are still within this reality
With in new scope.
Although the utility model is disclosed with reference to some embodiments, without departing substantially from the scope of the utility model
Under the premise of, a variety of variants and modifications can be carried out to described embodiment.Therefore, it will be appreciated by those skilled in the art that this reality
Illustrated embodiment is not limited to new, but with the content by appended claims and its structure of equal value and side
The full breadth that case is limited.
Claims (9)
1. a kind of fuel injection system for DPF initiative regenerations, it is characterised in that the fuel injection system includes：
Fuel oil supply system, the fuel oil supply system are used to supply fuel oil；
Compressed-air supply system, the compressed-air supply system are used to supply compressed air；
Hybrid injection system, the hybrid injection system are used for the mixing and injection for realizing fuel oil and compressed air；And
Support,
Wherein, the fuel oil supply system, the compressed-air supply system and the hybrid injection system are integrated in described
On support, for providing the fuel oil and air of mixing jetting, so as to provide fuel for DPF initiative regeneration.
2. fuel injection system according to claim 1, it is characterised in that the fuel oil supply system, the compression are empty
Gas feed system and the hybrid injection system are separately mounted to the both sides of the support.
3. fuel injection system according to claim 1, it is characterised in that be provided with steering in the bottom of the support
Wheel, and handle is installed above the support.
4. the fuel injection system described in any one in claims 1 to 3, it is characterised in that the fuel delivery
System includes：Fuel oil filter, fuel pump, oil return valve and fuel flow controller, fuel oil are carried out via the fuel oil filter
Filter, pressurizeed via the fuel pump, via the oil return valve regulation fuel pressure and via the fuel flow control
Device processed carries out flow control and turns into the quantitative high-pressure fuel oil provided to the hybrid injection system.
5. fuel injection system according to claim 4, it is characterised in that the compressed-air supply system includes：Pressure
Contracting air control valve and compressed air tunnel, the compressed air for flowing through the compressed air tunnel are empty in the compression
The quantitative high-pressure air provided to the hybrid injection system is provided under the adjustment effect of gas regulating valve.
6. fuel injection system according to claim 5, it is characterised in that the hybrid injection system includes：Oil gas mixes
Clutch and nozzle, the quantitative high-pressure fuel oil and the quantitative high-pressure air are mixed in the oil-gas mixer, so
The fuel oil and air of mixing jetting are provided by the nozzle afterwards, so as to provide fuel for DPF initiative regeneration.
7. fuel injection system according to claim 6, it is characterised in that install fuel filter in the side of the support
Device, fuel pump, compressed air regulating valve and compressed air tunnel, the opposite side of the support install oily rail, oil return valve,
Oil meter, fuel flow controller, shutoff valve and check valve.
8. fuel injection system according to claim 7, it is characterised in that oil meter is arranged on one end of oily rail, to survey
The fuel pressure in oily rail is measured and indicated, oil return valve is also equipped with this one end for being provided with oil meter of oily rail, so as to work as oily rail
Oil pressure regulation is carried out by oil return valve when interior fuel pressure is too high, shutoff valve, check valve are installed in the other end of oily rail
With fuel flow controller, so as to realize to the control of the metered injection of fuel oil.
9. a kind of bench test device of diesel engine, it is characterised in that by according to any one in claim 1 to 8
Described fuel injection system provides the fuel oil and air by proper proportion mixing jetting for the bench test device, so as to for
DPF initiative regeneration provides fuel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546560.6U CN206987911U (en) | 2017-05-17 | 2017-05-17 | Fuel injection system for DPF initiative regenerations |
| DE202017104450.5U DE202017104450U1 (en) | 2017-05-17 | 2017-07-26 | Fuel injection system for the regeneration of catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546560.6U CN206987911U (en) | 2017-05-17 | 2017-05-17 | Fuel injection system for DPF initiative regenerations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206987911U true CN206987911U (en) | 2018-02-09 |
Family
ID=61389614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720546560.6U Expired - Fee Related CN206987911U (en) | 2017-05-17 | 2017-05-17 | Fuel injection system for DPF initiative regenerations |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206987911U (en) |
| DE (1) | DE202017104450U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397268A (en) * | 2018-02-24 | 2018-08-14 | 安徽江淮汽车集团股份有限公司 | A kind of exhaust initiative regeneration control system |
-
2017
- 2017-05-17 CN CN201720546560.6U patent/CN206987911U/en not_active Expired - Fee Related
- 2017-07-26 DE DE202017104450.5U patent/DE202017104450U1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397268A (en) * | 2018-02-24 | 2018-08-14 | 安徽江淮汽车集团股份有限公司 | A kind of exhaust initiative regeneration control system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202017104450U1 (en) | 2018-08-20 |
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| CF01 | Termination of patent right due to non-payment of annual fee |