CN105822393A - Gas-assisted atomized liquid metering jet apparatus - Google Patents
Gas-assisted atomized liquid metering jet apparatus Download PDFInfo
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- CN105822393A CN105822393A CN201510006401.2A CN201510006401A CN105822393A CN 105822393 A CN105822393 A CN 105822393A CN 201510006401 A CN201510006401 A CN 201510006401A CN 105822393 A CN105822393 A CN 105822393A
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- assisted atomization
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
A gas-assisted atomized liquid metering jet apparatus comprises a gas limiting hole, a jet hole, a liquid nozzle and a gas-liquid mixing cavity; the limiting hole is positioned at the upstream of the gas-liquid mixing cavity and connected with a compressed air source; and the jet hole is positioned at the downstream of the gas-liquid mixing cavity and communicated to an engine exhaust pipe. The gas-assisted atomized liquid metering jet apparatus is characterized in that the flow area rate of the limiting hole and the jet hole is less than 1, the gas reaches a critical state in the limiting hole, so that pressure in the mixing cavity remains stable relative to the engine exhaust pipe.
Description
Technical field
The invention belongs to engine exhaust post-processing technology field, be specifically related to NOx selective catalysis reduction (SCR) system of engine exhaust post processing, the regeneration spraying system of diesel particulate capture filter (DPF), and their control technology.
Background technology
Under the severeest environmental problem test, the vehicle with internal combustion engine as power needs to install discharge post-treatment system in the hope of meeting the strictest emission request.Such as, be currently used primarily in the pollutant such as NOx in diesel motor exhaust are carried out the SCR(SelectiveCatalyticReduction of catalytic treatment) technology and diesel particulate is caught the technology etc. that (DPF) regenerates.
SCR technology needs (to be also diesel exhaust gas treatment fluid DEF=DieselExhaustFluid by the aqueous solution of urea of such as 32.5% weight concentration, or adding blue liquid AdBlue) metered injection enters in diesel exhaust gas, resolve into ammonia by exhaust high temperature, after mixing with aerofluxus, enter SCR catalytic converter.Under the effect of catalyst, ammonia will occur catalytic reduction reaction with the NOx in engine exhaust etc., makes NOx be decomposed into harmless N2, H2O, it is therefore desirable to the SCR metering jetting device that precision is higher, and preferably injection, atomizing effect.
Because problems such as aqueous solution of urea icing and crystallizations, existing SCR technology is difficult to normally working under any weather conditions under entirely without auxiliary heating state.Owing to the device of existing offer injection power source is the hugest or other reason causes system unit to be difficult in integrated implantation DEF fluid reservoir, often needing gases at high pressure and the deicing device of auxiliary, this makes system more complicated and huge, and cost also remains high.Source of high pressure air and engine back pressure fluctuation etc. can bring the unstability of liquid spray atomizing, easily impact system injection itself and atomization.Therefore solving system structure complicated is all real pressing issues with problems such as assisting source of the gas.
In the equipment with Diesel engine as power set, another nuisance affecting human health is diesel engine particulate thing.Catching these small particulate matters with pottery or metallic filter (DPF), then be accumulated to be got rid of by particulate matter the most afterwards at these particulate matters, this technology is referred to as diesel particulate thing and catches regeneration techniques.(DPF) regeneration techniques commonly used is hot to improve delivery temperature by spraying fuel oil oxidation generation in aerofluxus, so that the method that the particulate matter that DPF traps quickly is burnt.
Diesel oil spraying into the exhaust pipe of engine and is used for improving the temperature of exhaustor, on the one hand may be used for the regeneration of DPF, on the other hand may be used for preheating exhaust gas post-treatment device, such as SCR catalyst, these may be collectively referred to as engine exhaust heat management.Nozzle at exhaustor injection diesel oil is properly termed as " N+1 " nozzle, and N is the number of cylinders of electromotor.
For dpf regeneration system, on the one hand because the temperature of exhaust wall is higher, easily the long-term normal work to nozzle works the mischief, such as carbon deposit or structure change etc.；On the other hand, improve the temperature of the exhaust pipe of engine to be aoxidized by fuel oil or burning, need granule the least for fuel fog chemical conversion.For solving the problems referred to above, it is high to there is cost in prior art, installs the factors such as inconvenient, needs to improve further.
Summary of the invention
The present invention is directed to the problems referred to above, purpose be to provide a kind of accuracy of spray high, atomizing effect is good and the liquid meter injection apparatus of low cost.
For achieving the above object, the present invention takes techniques below scheme: a kind of gas assisted atomization liquid meter injection apparatus, including a Gas flow-limiting hole, one spray-hole, one fluid injector, one gas-liquid mixed chamber, metering hole is positioned at the upstream in gas-liquid mixed chamber, and be connected with compressed gas source, spray-hole is positioned at the downstream in gas-liquid mixed chamber, and lead to the exhaust pipe of engine, it is characterized in that: described metering hole is less than 1 with the circulation area ratio of described spray-hole, gas reaches critical state at metering hole, so that the pressure opposite engine exhaustor in hybrid chamber keeps stable.
Described fluid injector is provided liquid jet pressure by liquid jet pump, and measures injection liquid.Described liquid jet pump can be a pulse pump, and described pulse pump provides injection liquid for fluid injector, and hydraulic fluid is sprayed into gas-liquid mixed chamber by fluid injector.
Described pulse pump includes a calutron and an assembly of the plunger pump.Described calutron includes coil, yoke, magnetic gap and armature, wherein yoke is made up of permeability magnetic material with armature, magnetic gap is made up of non-magnet material, and described assembly of the plunger pump includes that plunger and sleeve, plunger and sleeve cooperatively form force feed volume, force feed volume connects liquid feed valve and liquid valve, after liquid enters pulse pump, a part enters force feed volume from liquid feed valve, after forming high-pressure solution, export from liquid valve, enter tapping channel.
For above-mentioned pulse pump, can be that sleeve is campaign-styled, it is also possible to be plunger motion formula.Pulse pump is driven by controller, provides injection solution for described fluid injector.
Aforesaid liquid nozzle includes a spout, and fluid injector is installed on the tapping channel of pulse pump, can be dependent on the ball valve nozzle of opened by pressure, or the poppet nozzle ball valve of dependence opened by pressure, or rely on electromagnetism power-actuated electromagnetic valve nozzle.High-pressure work liquid in tapping channel enters nozzle, and nozzle group valve sprays from spout after opening.
Described compressed gas source can be the brake air pump of vehicle, it is also possible to be vehicle intake supercharger.
Described gas-liquid mixed chamber is arranged in the outfan of pulse pump, communicate with fluid injector and gas metering hole, the spout of nozzle is positioned at hybrid chamber, metering hole is positioned at the upstream of gas mixing chamber, from the gas of source of the gas entrance through Gas flow-limiting hole arrival hybrid chamber, fluid injector sprays along airflow direction, forms two mixed flows of gas-liquid with gas.
Device of the present invention includes the ejector in a downstream being positioned at hybrid chamber, and ejector is installed on the exhaust pipe of engine.Described ejector includes a spray-hole leading to the exhaust pipe of engine, described Gas flow-limiting hole is less than 1 with the circulation area ratio of spray-hole, gas reaches critical state at metering hole, so that the pressure opposite engine exhaustor in hybrid chamber keeps basicly stable, the spraymeter accuracy of measurement of fluid injector is made to be guaranteed.Meanwhile, the injection liquid mixed with gas is because having the effect of the auxiliary gas of steady pressure, and sprays from spray-hole with more preferable atomizing effect.
Above-mentioned ejector can be swirl nozzle, it is also possible to for throttle valve type nozzle.
Described liquid meter injection apparatus can be applicable to the SCR system of exhaust after treatment system, and including a urea tank, described pulse pump is arranged in urea tank.
Described liquid meter injection apparatus can be applicable to the DPF system of exhaust after treatment system, and including a fuel reserve tank, described pulse pump is installed on the bottom of fuel reserve tank.
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
The structural representation of the embodiment one of the gas assisted atomization liquid meter injection apparatus that Fig. 1 provides for the present invention.
The structural representation of the embodiment two of the gas assisted atomization liquid meter injection apparatus that Fig. 2 provides for the present invention.
Fig. 3 is used for the schematic diagram of SCR system for the gas assisted atomization liquid meter injection apparatus that the present invention provides.
Fig. 4 is used for the schematic diagram of dpf regeneration system for the gas assisted atomization liquid meter injection apparatus that the present invention provides.
Detailed description of the invention
As it is shown in figure 1, the first embodiment structural representation of the liquid meter injection apparatus provided for the present invention, including pulse pump 1, mixing arrangement 2, fluid injector 3a, compressed gas source 27, ejector 4, controller 5, mixed flow conveying pipe 32；Mixing arrangement 2 includes Gas flow-limiting hole 26, gas-liquid mixed chamber 24；Controller 5 drives and controls the work of described liquid meter injection apparatus.
Described pulse pump 1 is a sleeve-plunger type pulse pump structure, including electromagnetic actuator device 14, assembly of the plunger pump 10.Wherein, assembly of the plunger pump 10 includes sleeve 20, plunger 19, return spring 17, liquid feed valve 11 and liquid valve 16, sleeve 20 and plunger 19 close fit, forms force feed volume 12, and return spring 17 acts on sleeve 20.Calutron 14 includes coil 13, yoke 15, magnetic gap 18 and armature 21.Described armature 21 and sleeve 20 can be integrated design, and sleeve 20 is enclosed in wherein by armature 21, and described yoke 15 is made up of permeability magnetic material with armature 21, and the front end face of armature 21 is positioned near magnetic gap 18.Pulse pump 1 controller 4 provides working signal, after coil 13 is energized, armature 21 together with sleeve 20 under the driving of calutron 14, forward movement causes force feed volume 12 to reduce, after liquid in force feed volume 12 is squeezed, pressure raises, liquid valve 16 is caused to be opened, spray by nozzle 2 with the working solution of High voltage output, after coil 13 energising terminates, under the effect of return spring 17, sleeve 20 starts returning movement, during return, liquid feed valve 11 is opened, and new liquid enters force feed space, prepares next work process.
Aforesaid liquid nozzle 3a is a ball valve nozzle relying on opened by pressure, including a spout 23, fluid injector 3a arrival end is installed on the tapping channel 27 of pulse pump 1, and ejection end stretches to described gas-liquid mixed chamber 24, and the flow of fluid injector 3a is by the size limitation of spout 23.
Described gas-liquid mixed chamber 24 is arranged in the outfan of pulse pump 1, communicates with fluid injector 3a and gas metering hole 26.The spout 23 of nozzle 3a is positioned at gas-liquid mixed chamber 24, metering hole 26 is positioned at the upstream of gas mixing chamber 24, the gas entered from source of the gas 27 arrives hybrid chamber 24 through Gas flow-limiting hole 26, fluid injector 3a sprays along airflow direction, gas-liquid mixed two phase flow 25 is formed in the downstream of hybrid chamber 24, enter mixed flow conveying pipe 32, arrive ejector 4.
Described ejector 4 leads to exhaust pipe of engine (not shown).Ejector 4 includes that a spray-hole 22, Gas flow-limiting hole 26 are less than 1 with the circulation area ratio of spray-hole 22, and gas reaches critical state at metering hole, so that the pressure opposite engine exhaustor in hybrid chamber 24 keeps basicly stable.Mixed flow 25 is ejected into the exhaust pipe of engine from the spray-hole 22 of ejector 4.
Fig. 2 show the structural representation of the embodiment two of the liquid meter injection apparatus that the present invention provides.It is with one of liquid meter injection apparatus provided by the present invention first structural representation difference: described pulse pump 1a is plunger-telescopic pump configuration.Plunger 19 is connected by connector or welding manner with armature 21, and return spring 17 acts on plunger 19.Plunger 19 moves back and forth under the driving of calutron 14 and return spring 17, causes the alternate of the size of force feed volume 12, produces jet fluid.Substantially one cylinder of armature 21, armature 21 includes the through hole 21a of through both ends of the surface.Described through hole 21a can have certain tapering, and the hole of band tapering is to feeding liquid under pressure Directional Extension, for realizing the liquid directed flow in inner space, with cooling pulse pump 1 and the stability of its work of raising.This structure is with the two of the difference of first embodiment structural representation: described fluid injector 3b is a lifting valve relying on opened by pressure, it is injected into fluid passage 301 including one, one nozzle group valve 302, described nozzle group valve 302 includes a valve seat 304, one valve member 303 and a valve spring 305, the surface of valve seat 304 and valve member 303 is adjacent to by valve spring 305 effect, and its injection flow is by the size of poppet valve part 303 and lift limit.
It is illustrated in figure 3 the application of gas assisted atomization liquid meter injection apparatus and the exemplary block diagram of SCR system that the present invention provides, including a urea tank 6, one end cap 7, one pulse pump 1, one gas-liquid mixed chamber 24, one source of the gas 27, , one fluid injector 3b, one airway 31, one mixed flow conveying pipe 32, one controller 5, one ejector 4, one discharge duct 34 with SCR catalytic converter 35, temperature sensor 36 and NOx or ammonia gas sensor 37 have been sequentially arranged it along exhaust stream 33 direction, lay respectively at catalyst upstream and downstream.
It is internal that described pulse pump 1 is arranged in urea tank 6, and described end cap 7 is installed on urea tank 1 upper end, and end cap 7 includes each circuit and tube outlet.Controller 5 is installed on described end cap 7, and pulse pump 1 is driven by controller 5.
Described airway 31 includes a hook 40, a locking nut 41.Described locking nut 41 is entangled by hook 40, and threadeds with the liquid inlet channel 26a of hybrid chamber 24.The holding wire 42 of pulse pump 1 can be drawn by airway 31.
Described source of the gas 27 is the gas source of a superatmospheric, the brake air pump of such as vehicle or engine booster air (not shown), gas controls switch 38 entrance airway 31 by air filter 39 and electromagnetic valve, enters hybrid chamber 24 with steady statue behind Gas flow-limiting hole 26.Described gas-liquid mixed chamber 24 is arranged in the outfan of pulse pump 1, the downstream of fluid injector 3b.Mixed flow is crossed high-pressure delivery pipe 32 and is delivered to be installed on the ejector 4 on discharge duct 34 and spray.
The work process of above-mentioned SCR system application examples is as follows.
System initial state, in urea tank 6, working solution enters pulse pump 1 through filter 43.Controller 5 is according to engine operating condition, and exhaust gas temperature sensor 36, NOx or ammonia gas sensor 37, in urea tank 6, the signal of each sensor etc., calculates required urea solution flow, then judges whether urea solution spraying system can normally work, if it can, be issued by driving signal.After pulse pump 1 receives the working signal of lead-in wire 42 transmission, by solution pump in the pump housing to fluid injector 3b, and sprayed by the spout 23b of nozzle 3b.Meanwhile, controller 5 drives solenoid-operated switch 38 to open, and gas is entered by airway 31, arrives gas-liquid mixed chamber 24 after metering hole 26 and air intake duct 26a.Gas exports to ejector 4 through blending transportation pipe 32 after mixing with injection liquid.Urea liquid is injected into exhaustor 34 from spray-hole 22 by ejector 4 with the form of atomization, and pyrolysis is ammonia under the effect of engine exhaust high temperature, mixing homogeneously with engine exhaust 33 and enter SCR catalytic converter 35, NOx therein will be harmless N by efficient-decomposition2And H2O, reaches the purpose of cleaning of off-gas.Temperature sensor 36 and NO sensor 37 will measure delivery temperature and the NOx concentration in transducer downstream or ammonia concentration in real time, feeds back to controller or engine controller (not shown), for determining the real-time correction of the working solution to injection.
Further, after last handling process terminates, gas can be used for cleaning residual urine cellulose solution in pipeline with time-delay closing, to prevent pipeline from freezing or carbamide crystallize blocking pipeline.
Above-mentioned SCR system; because all pipelines after Ting Jiing outside urea tank 6 all do not have liquid; the most there is not urea crystals to separate out or the problem of ice blockage pipeline; outside need not any heating deicing device; and urea tank 6 is internal also needs only to when urea solution freezes pulse pump 1 and carry out ice-melt about, such as by carrying out ice-melt to the coil electricity of pulse pump 1 generation heat.Therefore, the present invention makes the result of SCR system greatly simplified, and cost is greatly lowered, and system reliability is improved.
Fig. 4 is used for the exemplary block diagram of dpf regeneration apparatus system for the gas assisted atomization liquid meter injection apparatus that the present invention provides, including fuel reserve tank 8, pulse pump 1, source of the gas 27a, gas-liquid mixed chamber 24, fluid injector 3c, airway 31, mixed flow conveying pipe 32, controller 5, ejector 4, spark plug 45, the exhaust pipe of engine 34, flow deflector 52, and it is arranged in the temperature sensor 51 and 48 on exhaustor 34, differential pressure pickup 46 and oxygen sensor 47.
Described pulse pump 1 is fixed on the bottom of fuel reserve tank 8 by bolt 53, and is sealed by sealing gasket 54.To such an extent as to the fuel oil in fuel reserve tank 8 can be entered in pulse pump 1 by gravity and form normal fuel feeding.
Described controller 5 works for driven pulse pump 1, stores and process each sensor signal.Diesel particulate catcher (DPF) 49 is installed on described exhaustor 34, an oxidized form catalyst DOC50, or direct noble metal-coating catalyst on catcher DPF49 before DPF49, can be connected.After spark plug 45 is installed on ejector 4, it is positioned at oxidized form catalyst DOC50 and DPF49 upstream, when ejector 4 sprays mixed atomizing, spark plug 45 is lighted a fire in good time, light regeneration fuel oil spraying, make delivery temperature bring up to about 600 DEG C and enter back into DPF49, thus the particulate matter with soot as Main Ingredients and Appearance collected in the DPF49 that ignites, reach the effect preferably regenerated.
Should source of the gas be the pressurized air of engine charge described in use-case, come from compressor 121 and the downstream of charge air cooler 120 of supercharger 125.Compressor 121 is driven by charging turbine 122, and charging turbine 122 relies on the high pressure gas 33a work coming from manifold (not shown), and the outflow waste gas 33 of charging turbine 122 enters the exhaust pipe of engine 34.Pressurized air is the inlet manifold (not shown) of overwhelming majority supply engine after charge air cooler, a part of 27a enters mixing arrangement 2 as regeneration fuel oil jet atomization auxiliary air by airway 31, is entered back into mixing chamber 24 by metering hole 26 current limliting in mixing arrangement 2.Mix with the air imported at mixing chamber 24 from the fuel oil of nozzle 3c ejection, spurt into discharge duct 34 from ejector 4.Mixed flow not only increases the atomizing effect to injection fuel oil, and the air of importing also provides oxygen for fully burning of fuel oil, and helpful for cooling down the ejector 4 being contained on exhaustor 34.Described ejector 4 is normally opened hole type nozzle or swirl nozzle, is provided with one and half flow deflectors 52 encircling ejector 4 in the upstream of its installation site, and flow deflector 52 can comprise some through holes parallel with exhaust stream.The flow deflector 52 higher by temperature changes spray direction and produces fuel-steam, simultaneously, flow deflector 52 also has choked flow effect, make exhaust stream 33 relatively stable in region downstream, the fuel-steam that spraying or spraying produce can arrive the region of discharge of spark plug 45 with effective form, and burned flame is stablized in formation.
Described fuel reserve tank 8, could be for the auxiliary fuel tank of DPF system, the oil return (preferably taking the form of series connection) being positioned at engine high pressure spraying system on pulse pump 1 enters auxiliary fuel tank 8 by oil-in 56, is returned to the main fuel tank of electromotor the most again by oil return opening 55.From electromotor main fuel tank to pulse pump, between 1, at least to arrange one filtration system, if fuel oil comes from the low pressure oil return of engine high pressure spraying system, then can need not separately add filter.A fuel oil filter 9 can be arranged around the oil-in of pulse pump.An exhaust gas bubble pipe 57 can be installed in described filter 9 upper end, for discharging the bubble and fuel-steam produced when pulse pump 1 works.
The work process of the dpf regeneration device of above-described embodiment is as follows.
Soot from electromotor by DPF49 filtration and the most progressively accumulates, increase along with soot accumulation amount, pressure reduction △ P before and after DPF49 incrementally increases, when controller 5 detects △ P more than particular value by differential pressure pickup 46 (or the power of electromotor will be affected export), or when controller 5 reaches certain threshold value according to the trapping amount of soot of model prediction, if other conditions also meet regeneration DPF condition, then controller 5 driven pulse pump 1 sprays fuel oil by nozzle 3c, mix with the compressed air entered, ejector 4 is delivered to by blending transportation pipe 32, by the spray-hole 22 of ejector 4 jet atomization fuel oil in the exhaust pipe of engine 34.Meanwhile, controller 5 controls to drive spark plug 45 to light a fire to increase row's temperature.Temperature sensor (48,51) real-time capture delivery temperature, when temperature is higher than certain value, spark plug quits work, in order to avoid the overheated scaling loss of catcher 49.Differential pressure pickup 46 continues the pressure reduction △ P before and after detection DPF49, when △ P is less than a certain particular value, it is believed that regenerated, stops regeneration oil spout and igniting.
Liquid meter injection apparatus and other further scheme based on spirit of the invention that the present invention provides all belong within the scope of present invention disclosure and protection.
Claims (10)
1. a gas assisted atomization liquid meter injection apparatus, including a Gas flow-limiting hole, one spray-hole, one fluid injector, one gas-liquid mixed chamber, metering hole is positioned at the upstream in gas-liquid mixed chamber, and be connected with compressed gas source, spray-hole is positioned at the downstream in gas-liquid mixed chamber, and lead to the exhaust pipe of engine, it is characterized in that: described metering hole is less than 1 with the circulation area ratio of described spray-hole, and gas reaches critical state at metering hole, so that the pressure opposite engine exhaustor in hybrid chamber keeps stable.
2. gas assisted atomization liquid meter injection apparatus as claimed in claim 1, it is characterised in that: including a pulse pump, described pulse pump provides injection liquid for fluid injector, and hydraulic fluid is sprayed into gas-liquid mixed chamber by fluid injector.
3. gas assisted atomization liquid meter injection apparatus as claimed in claim 2, it is characterised in that: described fluid injector sprays along airflow direction.
4. gas assisted atomization liquid meter injection apparatus as claimed in claim 3, it is characterised in that: described compressed gas source is the brake air pump of vehicle.
5. gas assisted atomization liquid meter injection apparatus as claimed in claim 3, it is characterised in that: described compressed gas source is vehicle intake supercharger.
6. the gas assisted atomization liquid meter injection apparatus as described in claim 4 or 5, it is characterised in that: described gas-liquid mixed chamber is arranged in the outfan of pulse pump.
7. gas assisted atomization liquid meter injection apparatus as claimed in claim 6, it is characterised in that: including a urea tank, described pulse pump is arranged in urea tank.
8. gas assisted atomization liquid meter injection apparatus as claimed in claim 6, it is characterised in that: including a fuel reserve tank, described pulse pump is arranged in bottom fuel reserve tank.
9. the engine exhaust SCR system applying gas assisted atomization liquid meter injection apparatus as claimed in claim 7, it is characterised in that described urea tank external pipe can be all by auxiliary gas cleaning, without freezing or crystallization risk.
10. the engine exhaust particulate matter filtration system applying gas assisted atomization liquid meter injection apparatus as claimed in claim 8, it is characterised in that described auxiliary gas source is the pressurized air of engine charge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510006401.2A CN105822393B (en) | 2015-01-07 | 2015-01-07 | A kind of gas assisted atomization liquid meter injection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510006401.2A CN105822393B (en) | 2015-01-07 | 2015-01-07 | A kind of gas assisted atomization liquid meter injection apparatus |
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| CN105822393A true CN105822393A (en) | 2016-08-03 |
| CN105822393B CN105822393B (en) | 2019-08-06 |
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| CN201510006401.2A Active CN105822393B (en) | 2015-01-07 | 2015-01-07 | A kind of gas assisted atomization liquid meter injection apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159656A (en) * | 2017-07-06 | 2017-09-15 | 徐工集团工程机械有限公司 | Pipeline washing device, method and concrete conveying equipment |
| CN108620472A (en) * | 2017-03-17 | 2018-10-09 | 美盛隆制罐（惠州）有限公司 | A kind of automatic wax-spraying device and method |
| CN110848066A (en) * | 2019-09-30 | 2020-02-28 | 广西擎芯动力科技有限公司 | Ignition type two-stroke heavy oil piston engine |
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| US4465050A (en) * | 1981-05-19 | 1984-08-14 | Nippon Soken, Inc. | Device for atomizing the fuel for an internal-combustion engine |
| US20030145580A1 (en) * | 1999-12-22 | 2003-08-07 | Wolfgang Ripper | Device and method for generating a mixture of reducing agent and air |
| CN103032136A (en) * | 2011-10-02 | 2013-04-10 | 苏州派格丽减排系统有限公司 | Selective catalytic reduction (SCR) system with external mixing nozzle metering structure |
| CN103174497A (en) * | 2012-08-15 | 2013-06-26 | 苏州派格丽减排系统有限公司 | Reductant spraying control device in selective catalytic reduction (SCR) system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4465050A (en) * | 1981-05-19 | 1984-08-14 | Nippon Soken, Inc. | Device for atomizing the fuel for an internal-combustion engine |
| US20030145580A1 (en) * | 1999-12-22 | 2003-08-07 | Wolfgang Ripper | Device and method for generating a mixture of reducing agent and air |
| CN103032136A (en) * | 2011-10-02 | 2013-04-10 | 苏州派格丽减排系统有限公司 | Selective catalytic reduction (SCR) system with external mixing nozzle metering structure |
| CN103174497A (en) * | 2012-08-15 | 2013-06-26 | 苏州派格丽减排系统有限公司 | Reductant spraying control device in selective catalytic reduction (SCR) system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620472A (en) * | 2017-03-17 | 2018-10-09 | 美盛隆制罐（惠州）有限公司 | A kind of automatic wax-spraying device and method |
| CN108620472B (en) * | 2017-03-17 | 2023-08-15 | 美盛隆制罐（惠州）有限公司 | Automatic wax spraying device and method |
| CN107159656A (en) * | 2017-07-06 | 2017-09-15 | 徐工集团工程机械有限公司 | Pipeline washing device, method and concrete conveying equipment |
| CN110848066A (en) * | 2019-09-30 | 2020-02-28 | 广西擎芯动力科技有限公司 | Ignition type two-stroke heavy oil piston engine |
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