CN101440735A - Air discharge heating apparatus, system and method for diesel engine under full operating condition - Google Patents
Air discharge heating apparatus, system and method for diesel engine under full operating condition Download PDFInfo
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- CN101440735A CN101440735A CNA2008101540590A CN200810154059A CN101440735A CN 101440735 A CN101440735 A CN 101440735A CN A2008101540590 A CNA2008101540590 A CN A2008101540590A CN 200810154059 A CN200810154059 A CN 200810154059A CN 101440735 A CN101440735 A CN 101440735A
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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
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Abstract
The invention relates to a device, a system and a method for exhausting and heating under all operating conditions of a diesel engine, and belongs to the technical field of pollution control of tail gas particle. The heating device comprises a first-stage combustion chamber, a second-stage combustion chamber and a third-stage combustion chamber orderly connected in series with a shell, a whirlpool groove, a tapered spoiler, a spoiler groove, a triangular support of the tapered spoiler, a first-stage combustion oil supply pipe, a circular fuel oil evaporating pipe, a third-stage combustion oil supply pipe, an air intake guide cylinder, a fresh air guide cylinder, an exhaust tapered air inlet, an air inlet and an air intake baffle. An electronic control unit judges whether to regenerate by monitoring exhaust temperature and pressure at two ends of a particle catcher; when regeneration is needed, oxygen content in the exhausted air is judged, and when the oxygen content is lower than a preset value, an air pump is controlled to provide little air so as to reliably ignite under all operating conditions. The device, the system and the method have the advantages of low energy consumption, simple operation method, high combustion efficiency and reliable operation, and can work under all the operating conditions of an engine.
Description
The invention belongs to diesel engine vent gas particle contamination control technique field, further relate to the apparatus, system and method for exhaust heating under the full operating mode of a kind of diesel engine.
Background technique
Diesel engine has obtained using widely with the higher thermal efficiency and the lower all trades and professions of toxic emission all over the world, but its higher particle emission is puzzlement people's a problem always.Particle trapper (DPF) is the effective ways of control diesel particulation.Though the arresting efficiency of catcher can reach more than 90% at present, the removal (being the regeneration of catcher) after the micro particle catching but is the main cause that the restriction catcher is used.
Heat regeneration is a kind of particle trapper regenerated way that more generally adopts.By heating improve delivery temperature or directly the selectivity heated particulate will be deposited on particle burning in the catcher, recover trap performance.The mode of the heating of exhaust now mainly contains electric heating, microwave heating, infrared heating and the combustion-supporting heating of oil spout etc.
Also have in addition to adopt in diesel engine fuel oil, to add additive,, make diesel engine in running, realize automatic regeneration under some operating mode to reduce the initiation temperature of exhaust gas particulate.
Present stage, there was main following problem in diesel exhaust gas thermal regeneration device:
(1) adopt electric heating, microwave heating, infrared heating regeneration, the conversion of energy can cause the loss of big energy in the regenerative process; Institute's energy requirement regenerate in addition substantially from storage battery, and the heating equipment power consumpiton is bigger in the regenerative process, and accumulators brings very big burden, will install generator for this reason usually additional and adopt bypass regeneration, causes the regenerative system complex structure.
(2) spray or the outlet pipe injection the combustion-supporting interior back of thermal recovery cylinder that adds of oil spout, and spray only was applicable to the high pressure co-rail diesel machine after cylinder was interior, and caused oil dilution owing to part diesel oil can infiltrate oil sump, and engine scuffing is aggravated, life-span decline; Adopt outlet pipe spray must be in conjunction with the employing oxidation catalytic converter so that the fuel oil oxidation that sprays into the raising delivery temperature, and oxidation catalytic converter is very responsive to Sulpher content in the fuel oil, and at high temperature catalyzer comes off easily, working life is shorter.
(3) because the restriction of spatial structure, particle trapper is far away from motor usually, and when adopting the combustion-supporting regeneration of oil spout, produce power is along the journey line loss, causes in the regenerative process capacity usage ratio not high.
(4) in diesel engine fuel oil, add additive and can slow down particle trapper accumulation of particulates speed, the particle trapper regeneration period is prolonged, but because the restriction of spatial structure, particle trapper is far away from motor usually, therefore utilizes diesel engine regeneration effect in service relatively poor.
Summary of the invention
Thereby the object of the present invention is to provide that a kind of energy consumption is low, operating method is simple, combustion efficiency is high, reliable and can be under the full operating mode of motor the active combustion particulate make device, the system and method for the reliable regeneration of particle trapper.
For realizing said method design one cover diesel exhaust gas firing unit, shown in Fig. 2,3, this heating equipment comprises:
The heating equipment shell 14 that links to each other with outlet pipe,
Be positioned at one-level firing chamber 21 that shell is connected in series successively, secondary combustion chamber 22, three grades of firing chambers 24;
Be positioned at the taper spoiler 25 of three grades of firing chamber 24 least significant ends, the flow-disturbing groove 32 on the taper spoiler, and taper spoiler triangular support bracket 33;
The one-level burning fuel supply line of fuel oil is provided for one-level firing chamber 21;
The ignition mechanism that links to each other with one-level firing chamber 21 with one-level burning fuel supply line;
Be positioned at the annular vapourizer tube 26 of secondary combustion chamber 22, three grades of 24 joints, firing chamber, and three grades of burning fuel supply lines that link to each other with annular vapourizer tube 26;
The air inlet guide shell 30 that links to each other with one-level firing chamber 21;
Fresh air guide shell 16 that links to each other with air inlet guide shell 30 1 ends and exhaust taper suction port 15;
Be positioned at air inlet guide shell 30 the other ends, and be positioned at the inlet hole 28 and the air inlet baffle plate 27 of one-level firing chamber 21.
The technological scheme of above-mentioned ignition mechanism: fuel oil absorption net 29 is fitted in electric heating obturating plug 20 internal surfaces, is provided with inlet hole between glow plug binding thread lower edge and burning absorption net, and fuel oil absorption is off the net to be provided with oil-feed tank along the top deck.
Optimized project as firing unit also comprises: the eddy flow groove 31 that is positioned at one-level firing chamber 21, secondary combustion chamber 22 joints.
Exhaust heating system under the full operating mode of a kind of diesel engine comprises: above-mentioned heating equipment; And:
The fresh air control valve 1 that links to each other with heating equipment fresh air guide shell 16;
The one-level fuel meter 2 that links to each other with one-level burning fuel supply line;
Three grades of fuel meters 4 that link to each other with three grades of burning fuel supply lines;
The fuel tank 3 that links to each other with three grades of fuel meters 4 with one-level fuel meter 2;
The miniature inflating pump 10 that links to each other with heating equipment fresh air guide shell 16;
ECU (Electrical Control Unit);
The particle trapper 7 that links to each other with the heating equipment relief opening;
Be positioned at first temperature transducer 8 of particle trapper 7 inlet ends;
Be positioned at the flame sensor 10 that one-level firing chamber 22 is used for flame detection;
Be positioned at second temperature transducer 12 at heating equipment gas inlet place;
Be positioned at pressure transducer 6a, the 6b at particle trapper 7 two ends.
Exhaust heating means under the full operating mode of a kind of diesel engine of application said heating system comprise following process:
The combustion system fuel feeding adopts and directly gets oil by diesel engine fuel feeding return line, and ECU (Electrical Control Unit) control one-level fuel meter 2 Hes provide fuel oil by the two-stage fuel system to burner;
ECU (Electrical Control Unit) is by first temperature transducer, 8 monitoring delivery temperatures, by pressure transducer 6a, the 6b monitoring pressure signal at particle trapper 7 two ends, need to judge whether regeneration;
Judge regeneration opportunity by ECU (Electrical Control Unit), when needs are regenerated, open ignition mechanism and one-level fuel meter 2, and by ECU (Electrical Control Unit) according to engine operating condition, judge the engine exhaust oxygen content, when oxygen content is lower than specified value, controlling miniature inflating pump 9 provides little air in order to realize full operating mode reliable ignition;
By ECU (Electrical Control Unit) according to engine operating condition, fresh air control valve 1 timely adjustment burner fresh air is got tolerance, thereby fresh air shut-off valve 1 is closed and is realized that waste gas directly burns when being implemented in engine idle and little load, in motor, big load opens flow area according to exhaust oxygen content control fresh air control valve 1, to increase oxygen content in the burner, realize the burner trouble-free burning.
As a kind of preferred, the required fresh air of combustion system is taken from diesel turbocharging device outlet port.
Preferred as another, in diesel engine fuel oil, can add the iron-based fuel additive that iron ion content is 5ppm; This additive can make the diesel particulates initiation temperature reduce by 100～150 ℃.
Above-mentioned heating means in the course of the work, waste gas at first carries out preheating to the one-level firing chamber by the exhaust interlayer, part waste gas enters secondary combustion chamber through the eddy flow groove and participates in secondary firing in the back interlayer that catches fire.Be furnished with the taper spoiler at secondary combustion chamber's end, in order to improving three grades of combustion chambers burn efficient, and promote a grain catcher inlet temperature uniformity.
The method and apparatus of the full operating mode regeneration of diesel particulates catcher of the present invention has following advantage with respect to prior art:
(1) the particle trapper regenerated way that adopts fuel oil additive and exhaust burner to combine.Fuel oil additive can reduce the particulate initiation temperature, reduces the particle trapper cumulative speed on the one hand, prolongs particle trapper regeneration mileage; Effectively reduce the consumption of particle trapper regenerated energy on the other hand.
(2) get gas by being controlled at engine air inlet tube, realized the full operating mode regeneration of diesel engine particle catcher.Can the diesel exhaust gas burner reliably working depend on the oxygen content of burner air feed, and the exhaust oxygen content is higher when diesel engine idling and little load, so exhaust can directly be burnt; And in diesel engine, when loading greatly, because oxygen content reduces in the exhaust, burning reliability variation, must increase burner air feed oxygen content for this reason, the present invention takes out fresh air according to engine operating condition control from engine air inlet tube by ECU (Electrical Control Unit) control and offers burner, guarantee burner in, the trouble-free burning of loading greatly.
(3) adopt miniature inflating pump, guaranteed the reliability of burner igniting.Because the minimizing of diesel exhaust gas oxygen content, can cause burner igniting reliability decrease during less than certain value in oxygen content, the present invention is by adopting miniature inflating pump, by ECU (Electrical Control Unit) according to engine operating condition control inflating pump work opportunity, thereby realize full operating mode burner reliable ignition.
(4) after the burner fresh air is taken from the diesel exhaust turbosupercharger, saved extra air supply source and improved firing effect.Tradition utilizes blower fan to provide source of the gas to be applied to the car air conditioner heater more, aspects such as air inlet heating.And in exhaust environment, particularly install additional in the exhaust after the filter, because higher exhaust back pressure, the conventional fan mode causes the heating equipment can't normal combustion because aspirated pressure is lower than exhaust back pressure.
(5) the burner fuel feeding adopts and directly gets oil by diesel engine fuel feeding return line, saves the burner fuel pump, has reduced cost.
(6) method and apparatus of the full operating mode regeneration of diesel particulates catcher of the present invention, the system cost cost is low, not only can be applicable to high pressure common rail electric-controlled diesel engine, also can be applicable to mechanical type Injection Pump diesel engine, therefore can also be implemented in automobile transformation, make it to satisfy more strict emission regulation demands.
Description of drawings
Fig. 1 is an exhaust heating system structural drawing under the full operating mode of diesel engine, and 1 is the fresh air control valve, and 2 is the one-level fuel meter, 3 is fuel tank, 4 is three grades of fuel meters, and 5 is ECU (Electrical Control Unit), and 6 is pressure transducer, 7 is particle trapper, 8 is first temperature transducer, and 9 is miniature inflating pump, and 10 is flame sensor, 11 is heating equipment, and 12 is second temperature transducer.
Fig. 2 is the air discharge heating apparatus structural representation, wherein, 13 is engine exhaust pipe, and 14 is burner housing, 15 are exhaust taper suction port, 16 is the fresh air guide shell, and 17 is fuel pipe, and 18 is ignition mechanism glow plug suction tude, 19 is the ignition mechanism glow plug, 20 is ignition mechanism electric heating obturating plug, and 21 is the one-level firing chamber, and 22 is secondary combustion chamber, 23 is three grades of fuel pipes, 24 is three grades of firing chambers, and 25 are the taper spoiler, and 26 is vapourizer tube, 27 are the air inlet catch, 28 is inlet hole, and 29 are fuel oil absorption net, and 30 are the air inlet guide shell.
Fig. 3 (a) is exhaust burner one-level and secondary combustion chamber's structural representation, and wherein, 22 is secondary combustion chamber, and 23 is three grades of fuel pipes, and 25 are the taper spoiler, and 26 is vapourizer tube, and 31 is the eddy flow groove.
Fig. 3 (b) is the right elevation of Fig. 3 (a); Wherein, 32 are the eddy flow groove on the taper spoiler, and 33 are taper spoiler triangular support bracket.
Fig. 4 is idling operation schema regeneration conditional curve figure.
Fig. 5 is 1400r/min, 80Nm operating mode schema regeneration conditional curve figure.
Fig. 6 is 2600r/min, 50Nm operating mode schema regeneration conditional curve figure.
Embodiment
Oil-fired system
Get the part fuel oil from the motor return line, fuel oil under the pressure regulator valve effect enters into burner by fuel meter in the middle of.Wherein a part enters the burner vaporization chamber and is used for one-level burning, and another part enters and is used for three grades of burnings in the exhaust interlayer.
Gas handling system
The combustor air inlet system mainly comprises three parts: the one, and inflating pump provides small amount of fresh air to be used for igniting; The 2nd, turbosupercharger provides fresh air to be used for burning under the part operating mode; The 3rd, from exhaust, distribute a part of exhaust and be used for burning.
Ignition mechanism
The glow plug energising is to after the preheating of fuel oil absorption net, and fuel oil is lighted at absorption net surface carburation by evaporation and by glow plug after entering into vaporization chamber.Miniature inflating pump can effectively improve the igniting reliability and avoid the carbon distribution problem of glow plug.
Firing unit
Waste gas at first carries out preheating to the one-level firing chamber by the exhaust interlayer, and part waste gas enters secondary combustion chamber through the eddy flow groove and participates in secondary firing in the back interlayer that catches fire.Be furnished with the taper spoiler at secondary combustion chamber's end, in order to improving three grades of combustion chambers burn efficient, and promote particle trapper inlet temperature uniformity.
Automatical control system
ECU (Electrical Control Unit) need to judge whether regeneration by first temperature transducer 8 and particle trapper pressure at two ends sensor 6a, 6b; When needs are regenerated, open glow plug and one-level oil-feed solenoid valve 2, and by ECU (Electrical Control Unit) according to engine operating condition, judge the engine exhaust oxygen content, when oxygen content is lower than specified value, controlling miniature inflating pump 9 provides little air in order to realize full operating mode reliable ignition; After burner catches fire, ECU (Electrical Control Unit) is opened the flow area size according to engine operating condition control electromagnetic valve 2, solenoid valve 2 cuts out and realizes that waste gas directly burns when engine idle and little load, in motor, big load opens flow areas according to exhaust oxygen content control electromagnetic valve 2, to increase oxygen content in the burner, realize the burner trouble-free burning; The burner fuel feeding adopts and directly gets oil by diesel engine fuel feeding return line, and ECU (Electrical Control Unit) is controlled automatically controlled metering mechanism, provides fuel oil by the two-stage fuel system to burner.
The control of control system regenerative process is by the control air flow rate adjustment valve, fuel metering valve and electronic ignition device improve delivery temperature with pre-set control logic control heating equipment, and control system monitor temperature signal is adjusted the scope of air inflow control delivery temperature in expectation in good time.
Implement sample:
A discharge capacity is to have carried out the full operating mode regeneration test research of exhaustion particulate collector on the 2.499L supercharged diesel engine, wherein having added iron ion content in fuel oil is the iron-based fuel additive of 5ppm, when particle trapper trap particulate matter 6g/L, under three kinds of typical condition patterns shown in Fig. 4,5,6, the method and apparatus of using the full operating mode regeneration of this patent diesel particulates catcher carries out particle trapper regeneration respectively.Wherein Fig. 4 operating mode is an idling, has only this moment waste gas to participate in burning; Fig. 5 operating mode is 1400r/min, 80Nm, fresh air and waste gas fellowship burning this moment; Fig. 6 operating mode is 2600r/min, and 50Nm has only fresh air to participate in burning this moment.The result shows: under basic, normal, high three kinds of different rotating speeds and load, particle trapper fast rapid regeneration occurs when air discharge heating apparatus is heated to 500 ℃ with delivery temperature, and the catcher back pressure is got back to initial value after 3-5 minute, has realized holomorphosis.
Claims (6)
1, air discharge heating apparatus under the full operating mode of a kind of diesel engine is characterized in that this heating equipment comprises:
The heating equipment shell (14) that links to each other with outlet pipe (13);
Be positioned at one-level firing chamber (21), secondary combustion chamber (22), three grades of firing chambers (24) that shell is connected in series successively;
Be positioned at the taper spoiler (25) of three grades of firing chambers (24) least significant end, the flow-disturbing groove (32) on the taper spoiler, and taper spoiler triangular support bracket (33);
The one-level burning fuel supply line of fuel oil is provided for one-level firing chamber (21);
The ignition mechanism that links to each other with one-level firing chamber (21) with one-level burning fuel supply line;
Be positioned at the annular vapourizer tube (26) of secondary combustion chamber (22), joint, three grades of firing chambers (24), and three grades of burning fuel supply lines that link to each other with annular vapourizer tube (26);
The air inlet guide shell (30) that links to each other with one-level firing chamber (21);
The fresh air guide shell (16) and the exhaust taper suction port (15) that link to each other with air inlet guide shell (30) one ends;
Be positioned at air inlet guide shell (30) the other end, and be positioned at the inlet hole (28) and the air inlet baffle plate (27) of one-level firing chamber (21).
2, according to air discharge heating apparatus under the full operating mode of the described a kind of diesel engine of claim 1, it is characterized in that, also comprise: the eddy flow groove (31) that is positioned at one-level firing chamber (21), secondary combustion chamber (22) joint.
3, comprise exhaust heating system under the full operating mode of a kind of diesel engine of air discharge heating apparatus under the full operating mode of the described a kind of diesel engine of claim 1, it is characterized in that, comprising: heating equipment;
The fresh air control valve (1) that links to each other with heating equipment fresh air guide shell (16);
The one-level fuel meter (2) that links to each other with one-level burning fuel supply line;
The three grades of fuel meters (4) that link to each other with three grades of burning fuel supply lines;
The fuel tank (3) that links to each other with three grades of fuel meters (4) with one-level fuel meter (2);
The miniature inflating pump (9) that links to each other with heating equipment fresh air guide shell (16);
ECU (Electrical Control Unit);
The particle trapper (7) that links to each other with the heating equipment relief opening;
Be positioned at first temperature transducer (8) of particle trapper (7) inlet end;
Be positioned at the flame sensor (10) that one-level firing chamber (22) is used for flame detection;
Be positioned at second temperature transducer (12) at heating equipment gas inlet place;
Be positioned at particle trapper 7 two ends pressure transducer (6a, 6b).
4, application rights requires exhaust heating means under the full operating mode of a kind of diesel engine of exhaust heating system under the full operating mode of 3 described a kind of diesel engines, it is characterized in that,
The combustion system fuel feeding adopts and directly gets oil by diesel engine fuel feeding return line, and ECU (Electrical Control Unit) control one-level fuel meter (2) and three grades of fuel meters (4) provide fuel oil by the two-stage fuel system to burner;
ECU (Electrical Control Unit) is by first temperature transducer (8) monitoring delivery temperature, and the pressure transducer by particle trapper (7) two ends (6a, 6b) monitoring pressure signal is need to judge whether regeneration;
Judge regeneration opportunity by ECU (Electrical Control Unit), when needs are regenerated, open ignition mechanism and one-level fuel meter (2), and by ECU (Electrical Control Unit) according to engine operating condition, judge the engine exhaust oxygen content, when oxygen content is lower than specified value, controlling miniature inflating pump (9) provides little air in order to realize full operating mode reliable ignition;
By ECU (Electrical Control Unit) according to engine operating condition, fresh air control valve (1) timely adjustment burner fresh air is got tolerance, thereby fresh air shut-off valve (1) is closed and is realized that waste gas directly burns when being implemented in engine idle and little load, in motor, big load opens flow area according to exhaust oxygen content control fresh air control valve (1), to increase oxygen content in the burner, realize the burner trouble-free burning.
According to exhaust heating means under the full operating mode of the described a kind of diesel engine of claim 4, it is characterized in that 5, adding iron ion content in diesel engine fuel oil is the iron-based fuel additive of 5ppm.
6, according to exhaust heating means under the full operating mode of the described a kind of diesel engine of claim 4, it is characterized in that the required fresh air of combustion system is taken from diesel turbocharging device outlet port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101540590A CN101440735B (en) | 2008-12-15 | 2008-12-15 | Air discharge heating apparatus, system and method for diesel engine under full operating condition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101540590A CN101440735B (en) | 2008-12-15 | 2008-12-15 | Air discharge heating apparatus, system and method for diesel engine under full operating condition |
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| CN101440735A true CN101440735A (en) | 2009-05-27 |
| CN101440735B CN101440735B (en) | 2010-12-08 |
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| CN101936208A (en) * | 2010-09-20 | 2011-01-05 | 北京交通大学 | Exhaust temperature and back pressure based online diagnosis method for exhaust purifier of diesel engine |
| CN102269036A (en) * | 2011-07-01 | 2011-12-07 | 北京交通大学 | Online diagnosis device of exhaust purifier of diesel engine |
| CN102312711A (en) * | 2010-06-29 | 2012-01-11 | 通用汽车环球科技运作有限责任公司 | Exhaust gas treatment method and system |
| CN103423038A (en) * | 2013-08-28 | 2013-12-04 | 曲有才 | Automobile gasoline evaporator and fuel conveying device using same |
| CN103615320A (en) * | 2013-11-28 | 2014-03-05 | 中国航天科技集团公司第六研究院第十一研究所 | Turbulent flow ring structure with uniform fuel gas temperature field |
| CN104481654A (en) * | 2014-09-12 | 2015-04-01 | 苏州博菡环保科技有限公司 | On-line diagnosing apparatus for diesel exhaust purifier |
| CN104564247A (en) * | 2014-12-31 | 2015-04-29 | 杭州纯化科技有限公司 | DPF low-temperature regeneration igniter of diesel engine |
| CN104564250A (en) * | 2014-12-31 | 2015-04-29 | 杭州纯化科技有限公司 | Special fluid cowling for DPF low-temperature regeneration igniter of diesel engine |
| CN104564243A (en) * | 2014-12-31 | 2015-04-29 | 杭州纯化科技有限公司 | Special straight pipe disturber for DPF low-temperature regeneration igniter of diesel engine |
| CN105569782A (en) * | 2016-02-17 | 2016-05-11 | 无锡威孚高科技集团股份有限公司 | Evaporative type particulate matter trap regeneration system |
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| CN110017195A (en) * | 2019-05-22 | 2019-07-16 | 平原滤清器有限公司 | HC feedway and supply method for dpf regeneration in exhaust gas aftertreatment system |
| CN110273731A (en) * | 2019-07-23 | 2019-09-24 | 凯龙高科技股份有限公司 | A kind of burner meeting grain catcher DPF worst cold case highly efficient regeneration |
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| CN102312711A (en) * | 2010-06-29 | 2012-01-11 | 通用汽车环球科技运作有限责任公司 | Exhaust gas treatment method and system |
| US8538661B2 (en) | 2010-06-29 | 2013-09-17 | GM Global Technology Operations LLC | Exhaust treatment methods and systems |
| CN102312711B (en) * | 2010-06-29 | 2016-08-10 | 通用汽车环球科技运作有限责任公司 | Exhaust gas treatment method and system |
| CN101936208A (en) * | 2010-09-20 | 2011-01-05 | 北京交通大学 | Exhaust temperature and back pressure based online diagnosis method for exhaust purifier of diesel engine |
| CN102269036A (en) * | 2011-07-01 | 2011-12-07 | 北京交通大学 | Online diagnosis device of exhaust purifier of diesel engine |
| CN103423038A (en) * | 2013-08-28 | 2013-12-04 | 曲有才 | Automobile gasoline evaporator and fuel conveying device using same |
| CN103615320A (en) * | 2013-11-28 | 2014-03-05 | 中国航天科技集团公司第六研究院第十一研究所 | Turbulent flow ring structure with uniform fuel gas temperature field |
| CN104481654A (en) * | 2014-09-12 | 2015-04-01 | 苏州博菡环保科技有限公司 | On-line diagnosing apparatus for diesel exhaust purifier |
| CN104564250B (en) * | 2014-12-31 | 2017-07-11 | 杭州黄帝车辆净化器有限公司 | The special fluid radome fairing of Diesel engine DPF low-temp recovery igniters |
| CN104564247A (en) * | 2014-12-31 | 2015-04-29 | 杭州纯化科技有限公司 | DPF low-temperature regeneration igniter of diesel engine |
| CN104564250A (en) * | 2014-12-31 | 2015-04-29 | 杭州纯化科技有限公司 | Special fluid cowling for DPF low-temperature regeneration igniter of diesel engine |
| CN104564243A (en) * | 2014-12-31 | 2015-04-29 | 杭州纯化科技有限公司 | Special straight pipe disturber for DPF low-temperature regeneration igniter of diesel engine |
| CN105569782A (en) * | 2016-02-17 | 2016-05-11 | 无锡威孚高科技集团股份有限公司 | Evaporative type particulate matter trap regeneration system |
| CN108194169A (en) * | 2018-03-06 | 2018-06-22 | 黄育新 | A kind of burner for dpf regeneration |
| CN109950589A (en) * | 2019-01-24 | 2019-06-28 | 中氢新能技术有限公司 | Novel carbinol reformer |
| CN111717890A (en) * | 2019-01-24 | 2020-09-29 | 中氢新能技术有限公司 | Methanol reformer |
| CN111717890B (en) * | 2019-01-24 | 2021-08-10 | 中氢新能技术有限公司 | Methanol reformer |
| CN110017195A (en) * | 2019-05-22 | 2019-07-16 | 平原滤清器有限公司 | HC feedway and supply method for dpf regeneration in exhaust gas aftertreatment system |
| CN110017195B (en) * | 2019-05-22 | 2024-05-10 | 平原滤清器有限公司 | HC supply device and method for DPF regeneration in exhaust gas aftertreatment system |
| CN110273731A (en) * | 2019-07-23 | 2019-09-24 | 凯龙高科技股份有限公司 | A kind of burner meeting grain catcher DPF worst cold case highly efficient regeneration |
| CN111520216A (en) * | 2020-05-28 | 2020-08-11 | 凯龙高科技股份有限公司 | Plug-in type multi-stage mixed DPF burner |
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