US20090288399A1 - Burner And Method For The Regeneration Of Filtration Cartridges And Devices Equipped With Such Burner - Google Patents

Burner And Method For The Regeneration Of Filtration Cartridges And Devices Equipped With Such Burner Download PDF

Info

Publication number
US20090288399A1
US20090288399A1 US12/303,050 US30305007A US2009288399A1 US 20090288399 A1 US20090288399 A1 US 20090288399A1 US 30305007 A US30305007 A US 30305007A US 2009288399 A1 US2009288399 A1 US 2009288399A1
Authority
US
United States
Prior art keywords
burner
burner body
mixture
filter cartridge
closure element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/303,050
Other languages
English (en)
Inventor
Jean-Claude Fayard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20090288399A1 publication Critical patent/US20090288399A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • F01N3/0256—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 the fuel being ignited by electrical means
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
    • 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
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates in general to the field of the reduction, or even the complete removal, of the solid particulates such as soot contained in the exhaust gases of an internal combustion engine, and issuing in particular from diesel engines.
  • the invention relates to a method for regenerating the filter cartridge(s) by burning the soot trapped therein.
  • regeneration means the restoration of the filter cartridge to an operating state similar to its initial state.
  • catalytic converters generally consisting of a stainless steel sheath, a thermal insulation and a honeycomb support impregnated with precious metals such as platinum (Pt) or rhodium (Rh).
  • precious metals such as platinum (Pt) or rhodium (Rh).
  • Pt platinum
  • Rh rhodium
  • Such catalysts serve to reduce the emissions of polycylic hydrocarbons and carbon monoxide (CO), in a proportion of about 90%.
  • the solid particulates are generally trapped by a filter cartridge constituting the particulate filter.
  • a particulate filter requires regeneration in order to burn the particulates trapped in its filtering portions, mainly in the filter cartridge.
  • a filter cartridge may consist of a porous body of cordierite, quartz or silicon carbide. Moreover, it generally has a honeycomb structure to maximise its filtration surface area and to have a sufficient retention capacity to prevent its clogging, and thereby to avoid a deterioration in engine performance.
  • the major difficulty for ensuring the operation of such particulate filters resides in the possibility of implementing the phases of oxidation and combustion of the solid particulates retained by the filter cartridge. This is because, in city driving, the exhaust gases only with difficulty reach a sufficient temperature to ensure the uniform and/or complete combustion of the solid particulates and thereby regenerate the filter while significantly limiting its clogging.
  • a first method of the prior art consists in placing, upstream of the filter cartridge, a catalyst for the oxidation of the nitric oxide (NO) contained in the exhaust gases to nitrogen dioxide (NO 2 ).
  • Nitrogen dioxide (NO 2 ) has the property of catalysing the combustion of the carbonaceous particles from a temperature of 250° C.
  • This technique called Continuous Regenerating Trap (CRT), combines the action of the particulate filter and the nitric oxide (NO) oxidation catalyst.
  • this technique requires a regular regeneration in order to limit the pressure drop of the filter while eliminating the risk of uncontrolled regeneration, which is therefore too exothermic and destructive for the filter cartridge.
  • organometallic additives with the diesel, such as cerium (Ce), iron (Fe), strontium (Sr), calcium (Ca) or others.
  • This solution serves to obtain an effect similar to that obtained with nitrogen dioxide (NO 2 ), by catalysing the combustion of the carbonaceous materials at temperatures close to 370° C.
  • a first drawback of such a solution resides in the very high cost of the additives to be used. Moreover, it is necessary to provide a device for introducing the supplementary additive, which further increases the cost of such a solution.
  • the additives present in the carbonaceous materials contribute to the even faster fouling of the filter cartridge.
  • a solution of this type increases the risk of clogging of the particulate filter and hence of uncontrolled reactions, when the temperatures reached in operation are not sufficiently high.
  • combustion method has been implemented in recent “common rail” direct injection diesel engines. It comprises a step of post-injection of the diesel used to raise the exhaust gas temperature and thereby to oxidise and burn the carbonaceous particles retained on the particulate filter.
  • the “common rail” direct injection method which uses electromagnetic injectors, serves to make a new diesel injection into the combustion chamber at the time when the exhaust valve opens, thereby producing a homogenous mixture with the exhaust gases and thus initiating an oxidation of the freshly injected diesel. This oxidation reaction proceeds to near completion on the oxidation catalyst located between the engine exhaust port and the particulate filter.
  • the prior art also teaches methods for post-injecting liquid of the diesel type intended for regenerating filtration means placed downstream of combustion catalysts in diesel engine exhaust systems. These methods are described in particular in the following documents: U.S. Pat. No. 5,207,990, EP-A-1 158 143, U.S. Pat. No. 6,023,930, JP-A-07 119444 and U.S. Pat. No. 5,522,218.
  • the known post-injection methods only operate satisfactorily if a minimum exhaust gas temperature of about 300° C. is reached during at least 5% of the operating time.
  • the devices and methods implementing diesel post-injection in the exhaust gases upstream of an oxidation catalyst become inadequate when the temperature is too low.
  • the prior art also proposes the use of a burner at the filter inlet and to ignite it when the vehicle engine is stopped.
  • this implies numerous drawbacks, among which mention can be made of the difficulty of controlling, or even simply initiating, the combustion in the burner, the difficulty of thermally insulating the filter, the high temperature rise of the burner during the combustion phase (above 1400° C.) and the necessity to have a high filtration capacity to ensure sufficiently long service, that is between two engine stops.
  • the object of the invention thereby serves to obtain the temperature increase necessary for complete combustion of the solid particulates, or soot, deposited on the filter cartridge, while being adaptable to numerous diesel engines and to a wide variety of engine running conditions.
  • a further object of the invention is to provide a method and a device for burning solid particulates, that avoids any risk of holdup of the particulates in the filter cartridge and hence any risk of accidental regeneration, regardless of the engine running conditions, in particular for urban transport applications.
  • the invention also proposes a solution of quantitative reduction, or even complete removal, of the solid particulates, or soot, contained in the exhaust gases, by means of a regular, efficient and complete regeneration, that is without interruption, using an oxidation reaction produced above 200° C. and a complete combustion below 400° C., the use of an additive for avoiding any risk of holdup of the particulates in the filtration means despite a low temperature regeneration phase.
  • a further object of the invention is to provide a burner for the quantitative reduction, or even the complete removal, of the soot contained in the exhaust gases of internal combustion engines, this burner discharging at the inlet of the particulate filter and having small dimensions, thereby making it compact and easily integrable with the exhaust line of a vehicle.
  • a further object of the invention is to permit the regeneration of the filtration means used that does not cause an excessive increase in the temperature of the gases leaving the filtration device nor any significant extra consumption of fuel.
  • a further object of the invention is to provide a solution for the quantitative reduction, or even the complete removal, of the soot contained in the exhaust gases of an internal combustion engine, that is relatively economical, reliable, flexible, and delays the clogging of the filter to the maximum, or even eliminates it, regardless of the engine load, without necessarily being affected by the possible presence of sulphur bearing compounds, such as sulphur dioxide in the exhaust gases.
  • the object of the invention thereby serves to use diesel fuels with a high sulphur content.
  • a supplementary object of the invention is to provide a method and a device for burning solid particulates that are adaptable to machines for regenerating particulate filters to remove the ash deposited during their operation on a vehicle.
  • the invention proposes a method and a device for burning solid particulates that are adaptable to applications other than the combustion of the soot in particulate filters. For example, given the small dimensions and the perfect control of the high energy combustion, it is possible to consider the use of the object of the invention for drying foods, cereals and other vulnerable products.
  • the object of the invention therefore relates to a burner for heating at least one filter cartridge for the exhaust gases of an internal combustion engine at a temperature above the oxidation temperature and/or the combustion temperature of the solid particulates trapped in the said filter cartridge.
  • This burner comprises a burner body which has a closed end and on the side opposite this closed end, a discharge opening suitable for connection to a duct for removing the exhaust gases.
  • the burner further comprises: at least one intake duct for a mixture of fuel and oxidiser terminating in the burner body in a direction essentially tangential to the burner body, so as to apply a swirl motion to the said mixture inside the burner body; electrical ignition means for igniting the said mixture, positioned inside the burner body; a closure element obstructing a substantial portion of the burner body, so as to limit the turbulence that may be generated by the said exhaust gases on the fluid flows within the volume of the burner body bounded by the said closure element.
  • the burner of the invention comprises means limiting the turbulence to a level compatible with the ignition of the mixture, regardless of the engine speed, and therefore regardless of the pressure variations liable to occur in the exhaust, the said mixture being injected in a manner favourable to ignition.
  • This serves to easily ignite the mixture in a zone protected from turbulence, this ignition zone being bounded by the closure element.
  • the combustion of the mixture can then take place throughout the volume of the burner body, thereby producing gases at a high temperature which can heat a filter cartridge until the solid particulates are completely burned therein.
  • the inner surface of the side walls of the burner body may be uniform and has an overall symmetry of revolution.
  • uniform means a smooth surface (according to the common acceptance of the term and not according to its mathematical definition), that is free of irregularities or, in the case of a surface with a symmetry of revolution, a surface whereof the generating line has a high radius of curvature. It may, for example, be a straight cylinder, a shape that is relatively inexpensive to obtain and easy to join to other elements. Such a feature serves to further limit the turbulence in the burner body.
  • the closure element may comprise a disc having a diameter slightly lower than the inside diameter of the burner body, and positioned perpendicular to the axis of revolution, on the closed end side of the burner body.
  • a disc thus dimensioned and positioned serves to “break” the turbulence of the exhaust gas streams flowing in the burner body.
  • the disc may be perforated with a plurality of holes, whereof the number and/or the diameters are proportional to the diameter of the disc, the said holes being intended for propagating the combustion flame of the mixture throughout the volume of the burner body.
  • the closure element may further comprise a straight cylinder whereof one end is covered by the said disc and whereof the other end is covered by the closed end of the burner body, the straight cylinder being perforated with a plurality of through orifices, whereof the number and/or the diameters are proportional to the diameter of the disc, the said orifices being intended for propagating the combustion flame of the mixture throughout the volume of the burner body.
  • Such a structure of the closure element serves to sharply limit the turbulence in the mixture ignition zone, the mixture combustion flame can then propagate via the orifices throughout the volume of the burner body.
  • the closure element may consist of a shutter placed outside the volume of the burner body near the discharge opening, the area of the shutter corresponding substantially to the internal area of the burner body, the shutter being mounted movably under the action of a member such as a cylinder.
  • a shutter thus positioned and dimensioned also serves to limit the turbulence of the exhaust gases in the burner body.
  • the burner may further comprise two concentric lines, one for the fuel intake and the other for the oxidiser intake, the lines being placed upstream of the duct.
  • This relative arrangement of these two lines is suitable for promoting the mixing of the fuel with the oxidiser.
  • the mixture intake duct may consist of a pipe extending along the said side walls inside the burner body and parallel to the axis of revolution, the pipe having one end bent at a right angle.
  • the burner may further comprise a second electrical ignition means also positioned inside the burner body, these electrical ignition means consisting of a conventional heater plug and a conventional electric arc plug or of at least two heater plugs.
  • the burner may comprise a second intake duct for a mixture of fuel and oxidiser terminating in the burner body in a direction essentially tangential to the burner body, so as to apply a symmetrical swirl motion to the said mixture inside the burner body.
  • the burner may further comprise a control device for controlling the oxidiser and fuel injection flow rates according to the signals delivered by a temperature sensor located in the burner body and by a pressure sensor indicating the pressure drop due to the clogging of the said filter cartridge by the said solid particulates.
  • the burner When the burner is, for example, installed on a vehicle exhaust line, this serves to control its ignition and its extinction via the onboard computer.
  • the oxidiser may be air issuing from a turbocharger member mounted on the engine.
  • a ceramic textile in the form of a mat, fabric or felt, may be placed on the closed end side of the burner body and in contact with at least one electrical ignition means, the said ceramic textile being suitable for collecting and for concentrating the said mixture in order to promote its ignition.
  • the side wall partly defining the burner body may comprise one or more through orifices, terminating in the said body above the closure element. These through orifices are intended to permit the introduction into the burner body of part of the exhaust gases, when they still comprise a high proportion of oxygen not burnt in the engine itself.
  • At least one of the orifices in question may be prolonged into the burner by a line, whereof the end is directed towards the closure element, in order to promote the concentration of the combustion in the bottom zone of the burner, thereby favouring the flame, and further serving to reduce the flame tube, and hence the dimensions of the said burner.
  • the invention relates to an exhaust line of an internal combustion engine, comprising at least one inlet orifice for the gases issuing from the internal combustion, at least one filter cartridge trapping the solid particulates contained in these exhaust gases, and at least one orifice for discharging the gases to the atmosphere, located downstream of this filter cartridge.
  • this line comprises at least one burner of the type discussed above.
  • An exhaust line thus equipped serves to regenerate its filter cartridge by oxidising and/or by burning the solid particulates retained therein, and regardless of the engine load.
  • the burner may be placed upstream of the filter cartridge inside or outside the exhaust line or near the filter cartridge.
  • the exhaust line may comprise: at least two filter cartridges, the said burner being accommodated between the two filter cartridges; two shutters for stopping the exhaust gas flows respectively reaching each filter cartridge, so as to burn and/or oxidise the said particulates alternately in each filter cartridge.
  • Such a structure serves on the one hand to minimise the distance, and hence the heat losses and diesel consumption, between the burner and the filter cartridges, and, on the other, to regenerate the particulate filter in turn, half by half.
  • the exhaust line comprises a folding flap, suitable for allowing the introduction of part of the exhaust gases into the burner via through orifices with which the latter may be provided, and thereby to permit the combustion, in the said burner, of the residual oxygen that may still be present in the said exhaust gases.
  • the invention also relates to a method for heating at least one filter cartridge for the exhaust gases of an internal combustion engine at a temperature above the oxidation temperature and/or the combustion temperature of the solid particulates trapped in this filter cartridge, by means of a burner comprising a burner body having a symmetry of revolution, this burner body having a closed end and having on the side opposite this closed end a discharge opening suitable for connection to a duct for removing the exhaust gases.
  • this method comprises the steps consisting: in injecting, in a direction essentially tangential to the burner body, a mixture of fuel and oxidiser, so as to apply a swirl motion to the said mixture inside the burner body; in supplying electricity to an electrical ignition means positioned inside the burner body, in order to ignite the mixture, the burner body comprising a closure element obstructing a substantial portion of the burner body, so as to limit the turbulence that may be generated by the exhaust gases on the fluid flows within the volume of the burner body bounded by the said closure element; in interrupting the injection of the mixture after the temperature in the burner body has exceeded a predefined threshold in order to exceed this oxidation temperature and/or this combustion temperature in the filtration medium during a period that depends on parameters such as the load withstood by the engine and the pressure drop due to the clogging of the filter medium by these solid particulates.
  • the method according to the present invention serves to ignite the mixture in the burner regardless of the exhaust gas flows, because means limit their turbulence therein to a level compatible with the ignition of the mixture, injected in a manner suitable for ignition. This serves to easily ignite the mixture in a zone protected from turbulence, bounded by the closure element.
  • the combustion of the mixture can then proceed throughout the volume of the burner body, thereby producing gases at a high temperature capable of heating a filter cartridge until the solid particulates are completely burnt therein.
  • the fuel and the oxidiser may be mixed in stoichiometric proportions.
  • the invention also relates to a machine for regenerating filter cartridges of particulate filters comprising a burner as described above and a site for accommodating at least one filter cartridge to be regenerated.
  • FIG. 1A is a schematic representation of a cross section of an exhaust line equipped with a burner according to the invention
  • FIG. 1B is a schematic representation of a cross section of an exhaust line equipped with a burner according to the invention, according to an alternative to FIG. 1A with regard to the layout of the burner;
  • FIG. 2A is a schematic representation in two cross sections of a burner according to a first embodiment of the invention.
  • FIG. 2B is a schematic representation in two cross sections of a burner illustrating an alternative of the first embodiment of the invention
  • FIG. 3 is a schematic representation in two cross sections of a burner according to another embodiment of the first embodiment of the invention.
  • FIG. 4 is a schematic representation in two cross sections of a burner according to another alternative embodiment to the invention shown in FIG. 3 ;
  • FIG. 5A is a schematic representation in two cross sections of a burner according to another alternative embodiment of the invention shown in FIG. 3 , in which the burner comprises two heater plugs and a ceramic textile;
  • FIG. 5B is a schematic representation in two cross sections of a burner according to another alternative embodiment of the invention illustrated in FIG. 3 , in which the burner is equipped with an electric arc plug of the same type as the one used on controlled ignition engines;
  • FIG. 6 is a schematic representation in two cross sections of a burner according to another alternative of the first embodiment of the invention illustrated in FIGS. 2A and 2 B.
  • the burner body is at least partially covered by a thermally insulating material;
  • FIG. 7 is a schematic representation of a cross section of a burner according to a second embodiment of the invention.
  • FIG. 8 is a schematic representation of a cross section of a burner according to the invention mounted on an exhaust line of an engine, the burner being supercharged by turbocharger;
  • FIG. 9 is a schematic representation of a cross section of an alternative to FIG. 8 for the compressed air supply of a burner according to the invention.
  • FIG. 10 is a schematic representation of a cross section of a burner according to the invention mounted on a filtration device
  • FIG. 11 is a schematic representation of a cross section of a machine for regenerating particulate filters independently of the exhaust line of an engine
  • FIG. 12 is a schematic representation of a cross section of another embodiment of an exhaust line according to the invention.
  • FIG. 13A is a schematic representation of a longitudinal cross section of the burner used in the line in FIG. 12 ;
  • FIG. 13B is a schematic representation of a cross section of the burner used in the line in FIG. 12 .
  • the exhaust gases from the diesel engine reach the filtration device via an inlet 1 , at a temperature which may be between 80° C. at idling and 400° C. under load.
  • Such exhaust lines are each equipped with a catalyst 4 , followed by a filter cartridge 5 , upstream of which a burner according to the invention is mounted.
  • the burner has a burner body 2 with a symmetry of revolution comprising, according to one feature of the invention, a closure element 3 positioned within the burner body 2 .
  • An intake duct 7 for a mixture of fuel and oxidiser discharges tangentially into the burner body 2 , in order to convey the diesel or other fuel therein, led into the duct 7 via a capillary 6 , itself fed by an injector 61 .
  • Means (not shown) are in fact provided for communicating an appropriate momentum to the oxidiser and to the fuel for applying a swirl movement to the mixture in the burner body 2 .
  • the speed of injection of the mixture into the burner body 2 may reach 300 m/s.
  • “Tangentially” means tangentially to a circular cross section of the burner body 2 across the axis of the revolution of the burner.
  • the burner body 2 also has one end closed by a base and, on the side opposite this closed end, a discharge opening connected to the exhaust line.
  • the fuel injected into the duct 7 is diesel issuing from the same tank as that of the internal combustion engine of the vehicle equipped with the exhaust line.
  • the oxidiser is generally oxygen contained in the air injected into the duct 7 , for example from an air source of the engine.
  • the fuel and the oxidiser are mixed in stoichiometric proportions.
  • the lines at 6 , 7 conveying the diesel and air are mounted concentrically.
  • the duct 7 has a length defined in order to permit the homogenisation of the said mixture of air and diesel upstream of its connection to the burner body 2 .
  • a more homogenous mixture is easier to ignite.
  • the duct 7 is therefore supplied with air to form a combustible mixture of air and diesel, which is then discharged tangentially into the burner via a connecting orifice 14 .
  • the burner body 2 further houses an electrical ignition means in the form of a heater plug 8 to cause the ignition and combustion of this mixture of air and diesel, and also a temperature sensor 9 , whereof the measurement serves to control the combustion process.
  • the heater plug 8 is of the incandescent type here, that is like the cells used in the chambers of the internal combustion diesel engine.
  • the plug could also be of the impedance type, thereby permitting direct contact of the carburetted mixture with the filament heated to incandescence.
  • the overall device is controlled by a control device or computer 10 which, using the measurements taken by a pressure sensor 11 and by the temperature sensors 9 and 12 , controls the starting of the burner to carry out the regeneration phase, and then adjust the capacity of the burner in order to complete the regeneration operation.
  • the exhaust gases are removed via a manifold 13 .
  • the ignition of the burner by the computer 10 comprises the phases consisting: in supplying electric power to the heater plug 8 ; in injecting into the burner body 2 a controlled air flow via the tubular duct 7 ; after a predetermined period, substantially corresponding to the time required for the heater plug 8 to reach a temperature between 600° C.
  • the burner of the invention is suitable for igniting the mixture despite an engine at full power, that is when extreme fluid turbulence conditions prevail in the burner, because the exhaust gases then flow in the exhaust line at high speed and high flow rate.
  • the interior of the burner body 2 has a closure element 3 disposed substantially horizontally in FIGS. 1A and 1B .
  • the closure element 3 is located in a plane situated at a lower level than the orifice 14 for connecting the duct 7 to the burner 2 .
  • the closure element 3 comprises a disk having a slightly lower diameter than the inside diameter of the burner body 2 , and positioned perpendicular to the axis of revolution, on the side of the closed end of the burner body 2 .
  • this disc is perforated with several holes (two here, and about 1 to 10 depending on the diameter of the burner).
  • the diameter of each of the holes is 7 mm. In general, the number and diameters of the holes can be selected in proportion to the dimensions of the burner body 2 .
  • the closure element 3 performs two functions contributing to the above mentioned objective. Firstly, it obstructs a substantial portion of the burner body 2 in order to arrange a cavity 15 under its surface in which a controlled turbulence prevails, by “breaking” the exhaust gas streams.
  • the flame serves to “adhere” and stabilise the flame during operation, that is the combustion of a mixture of air and diesel.
  • the verb “to adhere” reflects the mechanism whereby the flame is concentrated and stabilised around this closure element 3 , before propagating towards the rest of the burner body 2 via the holes of the disc. Once the flame is durably established throughout the burner body 2 , the temperature therein may exceed 1000° C. and typically reach 1300° C. to 1400° C.
  • the closure element 3 defines a cavity 15 in which the heater plug 8 intended for ignition is accommodated, at least its active portion, as shown in FIG. 1A , and also the temperature sensor 9 , as shown in FIGS. 2A , 2 B, 6 and 7 .
  • the plug 8 is thus positioned on the side of the closed end of the burner body 2 , at a predefined distance from the opening of the duct 7 in order to ignite the mixture.
  • the temperature sensor 9 is positioned in the burner body close to the closure element 3 , in order to detect the ignition of the mixture, and then to adjust the fuel-air ratio thereof to optimise the temperature and combustion time of solid particulates retained in the filter cartridge 5 .
  • a burner having the following dimensions: a cylindrical burner 2 with an inside diameter of 60 mm fed with air by a straight tangential tube 7 with an inside diameter of 8 mm, accommodating a capillary 6 with an inside diameter of 1 mm for a maximum diesel flow rate of 150 cm 3 /min, representing a power of about 85 kW.
  • the portion of the burner 2 located above the closure element 3 has a length of 150 mm.
  • the closure element 3 is located 5 mm below the connection of the duct 7 in the burner 2 ; it has a diameter of 59 mm and is perforated with two 8 mm diameter holes.
  • the surface of the closure element 3 bounds, with the bottom of the burner 2 , a cavity 15 having a height of 25 mm.
  • the term “cylinder” is used in its common acceptance, and therefore designates a straight cylinder with a circular base.
  • the air flow is adjusted by the computer 10 in order to maintain the flame inside the cylinder defined by the burner body 2 .
  • the high turbulence and the high temperature inside the burner favour a rapid combustion that occurs along about ten centimeters inside this cylinder.
  • FIG. 1B shows an alternative in which the burner is placed directly inside the exhaust line. This layout of the burner serves to recover all the heat liberated during the combustion of the mixture conveyed via the duct 7 .
  • the burner 2 may be arranged horizontally as shown. However, it may also be arranged vertically, in which case it is indispensable to place the heater plug 8 on the bottom of the burner body 2 to obtain proper ignition.
  • the orifice 14 represents the connection of the duct 7 in the burner 2 , in this case an intersection between two cylinders of different diameters.
  • FIG. 2B shows an alternative in which a portion of the fuel is directly injected, during the ignition phase, through a heater plug terminating in the cavity 15 .
  • This plug may be of the same type as the one used in the additional burners of the automobile heating circuit. Such an injection serves to control the fuel-air ratio of the mixture and to distribute it in the cavity defined by the closure element 3 .
  • a structure can be considered like the one shown in FIGS. 3 , 4 and 5 .
  • This structure is similar to those shown in FIGS. 1 , 2 A and 2 B.
  • it has the special feature of having a flame “adhesion” closure element 3 , composed of a cylindrical and laterally perforated close-end tube, of which the upper end is in fact covered by a solid disc.
  • the chamber defined by this tube houses at least one heater plug 8 , which may or may not be centred on the base of the burner 2 .
  • the closure element 3 here consists of a stainless steel tube with a thickness of 1.5 mm and an inside diameter of 35 mm, covered by a solid disc.
  • the tube may be plugged at its bottom end by the base of the burner.
  • the cylindrical or lateral surface of the closure element 3 is perforated with four 8 mm diameter holes arranged in opposite pairs and at two different heights. These holes enable the flame to propagate throughout the burner body 2 .
  • the ignition phase it is possible, to achieve the ignition phase, to mount a plurality of heater plugs in the burner chamber as shown in FIG. 5A .
  • the additional plugs may be placed inside or outside the cavity bounded by the closure element 3 .
  • a ceramic textile 201 woven, felt or mat, near or in contact with the heater plug favours the mixture ignition phase, because it is suitable for collecting and concentrating the diesel mixture. It may be disposed as shown in FIG. 5A , that is accommodated between the wall of the burner body 2 and the heater plug 8 at least on a portion of the lateral circumference of the burner body 2 . Similarly, this ceramic textile 201 could be incorporated in the burners described in relation to FIGS. 2A and 2B .
  • the intake of the carburetted mixture inside the burner 2 can also be provided by a pipe 16 connected to the bottom edge of the burner 2 , as shown in FIG. 4 .
  • a mixture intake type consists of a pipe 16 extending along the side walls inside the burner body 2 and parallel to the axis of revolution, the pipe 16 having an end bent at a right angle discharging tangentially at the burner body 2 .
  • Such a pipe 16 comprises a lateral orifice 17 , which terminates tangentially at the burner body 2 and serves to send the carburetted mixture in the direction D.
  • the burner has the same dimensions as previously.
  • the pipe 16 made from stainless steel has an inside diameter of 8 mm with a 4 mm diameter orifice terminating tangentially on the wall of the burner 2 .
  • Such a pipe 16 serves to decrease the size of the burner, thereby facilitating the accessibility and fabrication of the burner.
  • FIG. 6 shows, according to one feature of the invention, an alternative in which a thermally insulating coating 180 lines the burner 2 , in order to preserve the heat produced by the flame inside the burner and to minimise the heat exchanges of the wall of the burner 2 with the exterior.
  • This coating may be a refractory metal of the Inconel type or a ceramic such as cordierite, mullite, alumina, etc.
  • a ceramic coating 180 combined with a sheath 181 of thin refractory steel, that is between 0.5 mm and 1.5 mm thick, in order to protect the ceramic from thermal shocks.
  • Such a thermal insulation serves to reach the oxidation and/or combustion temperature of the solid particulates more rapidly in the filter cartridge 5 , while economising the fuel injected into the burner.
  • a burner according to the invention may advantageously find an application for drying cereals or plants, in which the air is generally heated by natural gas.
  • a catalytic coating may advantageously be placed on the outside wall of the burner 2 .
  • Such a catalytic coating serves to oxidise the last traces of hydrocarbons and carbon monoxide (CO).
  • a catalyst may be placed at the burner outlet, in the form of a honeycomb to increase its heat exchange surface.
  • the burner of the invention may be equipped with a closure element in the form of a disc defining a shutter 18 , as shown in FIG. 7 .
  • the shutter 18 controlled by a cylinder 19 substantially obstructs the burner body 2 , in this case the burner discharge orifice, in order to limit the turbulence of the gas flows in the burner.
  • the cylinder 19 controlling the shutter 18 may be simply controlled by an air bypass feeding the burner.
  • the flame is detected by the temperature sensor 19 , it can be placed in a free position, or “at neutral point”, that is without a pressure difference between its chambers.
  • this shutter 18 may be associated with a closure element 3 , as described above in relation to FIGS. 1 to 6 .
  • the bottom of the burner 2 is a portion of sphere.
  • the temperature sensor 9 is placed, like the one shown in FIG. 2 , on the bottom of the burner 2 .
  • the ignition plug 8 is placed on the side or at the centre according to whether the burner is intended to operate horizontally or vertically.
  • a booster may be mounted or the air of the engine supercharging circuit can be used, as shown in FIGS. 8 and 9 .
  • the compressed air is taken from a turbocharger 20 at the engine intake by means of a bypass duct 21 , suitable for bypassing the air flow required to feed the burner.
  • a controller 22 controls the air flow rate in the bypass duct 21 in order to regulate the quantity of air entering the filtration device, under the control of the computer 10 .
  • a compressed air tank 23 can be provided for the air feed, also via a bypass 21 issuing from the turbocharger and a nonreturn valve 24 .
  • the burner feed rate is also adjusted by the flow controller 22 , which may for example consist of a variable-opening valve.
  • the turboblower machine may, for example, consist of a vane pump, supplied with electricity and generating a pressure difference of 400 mbar.
  • diesel engines are factory-equipped with a catalyst for reducing the emissions of hydrocarbons and carbon monoxide (CO), in order to meet the emission standards.
  • the diesel engines like those which comply with the EURO 4 standard, may be equipped with an “SCR” nitrogen oxide reduction system incorporating a denitrification catalyst called “DéNox”, suitable for reducing, on the one hand, the nitrogen oxides (NOx) by means of a urea injection, in addition to the use of an oxidation catalyst to reduce any excess urea, and, on the other, the emissions of hydrocarbons and carbon monoxide (CO) remaining from the exhaust gases.
  • a filtration device only comprising a burner according to the present invention therefore serves, in such applications, to propose a unit without oxidation catalyst, that is simple and economical.
  • the burner shown in FIG. 10 is placed between two filter cartridges 5 each comprising a conventional filter cartridge, terminating on the inlet face of each of the cartridges, which are also equipped with an obstruction shutter 25 controlled by a cylinder 26 with air- or electrical drive.
  • the obstruction shutter 25 serves to regenerate one cartridge after the other by combustion of the carbon particulates retained on their filter cartridges, thereby avoiding excessive outlet temperatures.
  • Each of the filter cartridges 5 is equipped with a temperature sensor 27 , performing a function similar to that of the temperature sensor 9 shown in FIG. 1 .
  • a temperature sensor 273 placed on the burner outlet duct serves to accurately control the exhaust gas exit temperatures by controlling the obstruction of the shutter 25 of the filter cartridge 5 to be regenerated.
  • a pressure sensor measures the back-pressure due to the pressure drops by clogging of the filter cartridges 5 , in order to indicate the clogging level of the filter cartridges.
  • the computer controls the start of the burner in order to regenerate the filter.
  • a starting method comprises the steps consisting in: supplying electricity to the heater plug 8 ; injecting an air flow via the duct 7 ; closing one of the two shutters 25 controlled by a cylinder 26 ; after a predefined time corresponding substantially to the time required for the heater plug 8 to reach a sufficient temperature of between 600° C.
  • the combustion continues in the filter cartridge 5 , but however without reaching a prohibitive gas temperature at the outlet of the filter cartridge, because the carbon combustion gases issuing from a filter cartridge 5 are mixed with those issuing from the neighbouring filter cartridge 5 in which no combustion reaction has begun.
  • the regeneration of the other filter cartridge is only initiated subsequently and after a period of time programmed in the computer 10 , sufficiently long for the combustion on the filter cartridge 5 to be complete or until the temperatures measured by the probes 27 are equal.
  • the power of the burner is only used to heat a single cartridge at a time, thereby substantially reducing its operating time and hence the quantity of fuel consumed for this operation.
  • the shutters 25 also satisfy safety considerations by reducing the outlet temperatures substantially, and hence eliminating the need for considerable thermal insulation of the outlet line.
  • This shutter device can therefore be advantageously incorporated with the devices comprising a burner.
  • each of the filter cartridges 5 has a flow obstruction means, placed upstream or downstream, and controlled by at least one computer integrating the engine running conditions, in order to isolate at least one filter cartridge 5 whenever the accelerator position is at zero (non-accelerated).
  • the burner of the invention can advantageously be used on a machine designed to regenerate the filter cartridges of particulate filters to renovate them, after the vehicle has traveled several tens of thousands of kilometres.
  • the ash produced by combustion of the engine oil, or even the combustion additives employed tends to progressively clog the pores of the filter cartridge. This is why a regeneration carried out on a machine, with a device blowing hot air in countercurrent flow to the operating direction, serves to suitably regenerate the filter cartridge outside the vehicle.
  • FIG. 11 Such a machine for regenerating particulate filters is shown in FIG. 11 , in which the burner 2 operates in a horizontal position inside a chamber 32 , which is itself supplied by an air turboblower machine 31 .
  • the turboblower delivery and the power of the burner 2 are controlled by a computer (not shown), so as to adjust the outlet temperature of the chamber 32 to a temperature set point indicated by the temperature sensor 28 .
  • the principle consists in progressively raising the air temperature in the burner to a temperature close to that at which the carbon combustion occurs, that is 500° C. without additive, or 350 to 400° C. with additive.
  • a second temperature sensor 30 is placed, in order to permanently compare the temperature at the outlet 13 with the inlet temperature measured by the sensor 28 .
  • means are employed to slow down the combustion in the filter, like reduction of the air flow rate, reduction of the burner power. This method of slowing the combustion serves to burn all the carbon and the wastes contained in the filter, without reaching excessive temperatures that are liable to jeopardise the integrity and service life of the filter cartridge.
  • the temperature of the filter cartridge rises to a temperature of between 650 and 700° C. in order to reduce the waste to ash.
  • a high flow is then generated by the turboblower machine in order to extract this ash from the filter cartridge to be renovated.
  • the hot gases are removed via a thermally insulated line 34 , comprising a special high capacity filter 35 suitable for stopping all the ash and waste.
  • An oxidation catalyst 36 is placed downstream of this special filter to oxidise the hydrocarbons and carbon monoxide (CO) that may be formed during the combustion phase.
  • the gases are then discharged via a duct 37 .
  • the residual oxygen present in the exhaust gases is exploited for its combustion in the burner. This case is encountered in particular in supercharged diesel engines.
  • the burner body is perforated with one or more through orifices 38 , terminating on the side wall defining the said body, at a higher level than the closure element 3 .
  • These orifices 38 are advantageously directed substantially tangentially to the said side wall, also for the purpose of contributing to the swirl movement applied to the flows inside the burner.
  • the exhaust line is provided with a flap 39 , hinged to the inside wall of the said line, and adjustably foldable on the outside wall of the burner, upon command from the computer 10 according to the parameters already discussed, and as a corollary, causing the introduction of a more or less large quantity of the said exhaust gases in the burner.
  • At least one 40 of the said orifices is prolonged into the burner by a line 41 , whereof the end 42 is curved and directed towards the closure element 3 .
  • the combustion is concentrated at the closure element, thereby favouring the flame and, as a corollary, serving to reduce the length of the said burner.
  • the burner of the present invention therefore serves to reduce, or even to completely remove, the solid particulates contained in a filter cartridge, while using a catalyst with a low precious metal concentration.
  • a burner allows complete combustion of the diesel without undesirable emission of hydrocarbons or of carbon monoxide, contrary to the devices in which diesel is injected directly on the catalyst.
  • the burner may comprise a second intake duct for a mixture of fuel and oxidiser, discharging in the burner body also in a direction essentially tangential to the burner body, in order to apply a symmetrical swirl movement to the said mixture in the burner body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
US12/303,050 2006-06-07 2007-03-22 Burner And Method For The Regeneration Of Filtration Cartridges And Devices Equipped With Such Burner Abandoned US20090288399A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0652501A FR2902137B1 (fr) 2006-06-07 2006-06-07 Bruleur et procede pour la regeneration de cartouches de filtration et dispositifs equipes d'un tel bruleur
FR0652501 2006-06-07
PCT/FR2007/050982 WO2007141433A1 (fr) 2006-06-07 2007-03-22 Bruleur et procede pour la regeneration de cartouches de filtration et dispositifs equipes d'un tel bruleur

Publications (1)

Publication Number Publication Date
US20090288399A1 true US20090288399A1 (en) 2009-11-26

Family

ID=37670723

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/303,050 Abandoned US20090288399A1 (en) 2006-06-07 2007-03-22 Burner And Method For The Regeneration Of Filtration Cartridges And Devices Equipped With Such Burner

Country Status (5)

Country Link
US (1) US20090288399A1 (fr)
EP (1) EP2024614A1 (fr)
CA (1) CA2658216A1 (fr)
FR (1) FR2902137B1 (fr)
WO (1) WO2007141433A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110203257A1 (en) * 2007-08-20 2011-08-25 Parker Hannifin Corporation Diesel dosing system for active diesel particulate filter regeneration
US20130125543A1 (en) * 2010-08-20 2013-05-23 Mack Trucks, Inc. Heating apparatus for internal combustion engine exhaust aftertreatment
US20140080075A1 (en) * 2012-09-15 2014-03-20 Honeywell International Inc. Burner control system
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
CN107638768A (zh) * 2017-10-13 2018-01-30 许陈菲 一种煤炭燃烧废气处理排气管
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
CN112012815A (zh) * 2019-05-30 2020-12-01 日本碍子株式会社 废气混合器、废气净化装置以及废气净化方法
US11015556B2 (en) 2013-10-16 2021-05-25 Cummins Filtration Ip, Inc. Electronic filter detection feature for liquid filtration systems
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US11149701B2 (en) * 2015-12-22 2021-10-19 Cummins Filtration Ip, Inc. Filtration monitoring system that monitors dual filtration systems
US20230296248A1 (en) * 2022-03-16 2023-09-21 Valmet Ab Mounting system for a sensor in a ductwork
US20230383681A1 (en) * 2022-05-25 2023-11-30 Tenneco Automotive Operating Company Inc. Selective catalytic reduction catalyst pre-heating burner assembly and method of controling burner emissions

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048529A1 (de) * 2008-09-23 2010-03-25 Beru Ag Flammglühkerze
FR2937082A1 (fr) * 2008-10-10 2010-04-16 Jean Claude Fayard Bruleur pour regeneration des filtres a particules de moteur a combustion interne et la mise en temperature de systeme catalytique et ligne d'echappement integrant un tel bruleur.
FR3039581B1 (fr) * 2015-07-31 2017-07-28 Faiveley Transp Tours Systeme de guidage et de support d'un vantail de porte paliere de quai
CN110721533A (zh) * 2019-10-17 2020-01-24 沪东重机有限公司 金属dpf滤网水洗再生处理装置和处理方法
CN113006915B (zh) * 2021-03-26 2022-08-02 重庆汽车消声器有限责任公司 一种用于小吨位内燃车的降噪环保消声器

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541239A (en) * 1983-06-20 1985-09-17 Nissan Motor Company, Ltd. Exhaust purification apparatus
US4604868A (en) * 1982-12-04 1986-08-12 Mazda Motor Corporation Cleaner control for diesel engine exhaust gases
US4615173A (en) * 1983-11-09 1986-10-07 Hitachi, Ltd. Exhaust emission control apparatus for diesel engine
US4912920A (en) * 1989-02-02 1990-04-03 Toa Nenryo Kogyo Kabushiki Kaisha Ultrasonic burner system for regenerating a filter
US4936093A (en) * 1987-09-08 1990-06-26 Webasto Ag Fahrzeugtechnik Soot-filtering unit for the exhaust gas section of a diesel internal combustion engine
US5094075A (en) * 1988-11-04 1992-03-10 Kloeckner-Humboldt-Deutz Ag Particulate filter system
US5207990A (en) * 1990-06-01 1993-05-04 Nissan Motor Co., Ltd. Exhaust gas purifying device for internal combustion engine
US5209187A (en) * 1991-08-01 1993-05-11 Institute Of Gas Technology Low pollutant - emission, high efficiency cyclonic burner for firetube boilers and heaters
US5522218A (en) * 1994-08-23 1996-06-04 Caterpillar Inc. Combustion exhaust purification system and method
US6023930A (en) * 1995-06-28 2000-02-15 Mitsubishi Heavy Industries, Ltd. Black smoke eliminating device for internal combustion engine and exhaust gas cleaning system including the device
US20030118964A1 (en) * 2001-12-11 2003-06-26 Walter Blaschke Combustion chamber assembly for a heating device
US20050257518A1 (en) * 2002-06-04 2005-11-24 Jean-Claude Fayard Methods and device for filtration of exhaust gases for a diesel engine with a filtration surface which is variable by means of controlled obstruction
US20060218902A1 (en) * 2005-03-31 2006-10-05 Solar Turbines Incorporated Burner assembly for particulate trap regeneration
US20060272212A1 (en) * 2005-06-07 2006-12-07 Edlund David J Hydrogen-producing fuel processing assemblies, heating assemblies, and methods of operating the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2240352A1 (en) * 1973-07-26 1975-03-07 Pisenti Charles Exhaust gas purificn esp by burning carbon monoxide - after concentrating gas constituents in concentric zones by centrifuging
JPS597721A (ja) * 1982-07-06 1984-01-14 Mitsubishi Motors Corp デイ−ゼルパテイキユレ−トフイルタシステム
DE3532778A1 (de) * 1985-09-13 1987-03-19 Man Technologie Gmbh Vorrichtung zum regenerieren von russfiltern
FR2850704A1 (fr) * 2003-01-31 2004-08-06 Jean Claude Fayard Procede de post-injection de gazole pour la regeneration de systemes de filtration des gaz d'echappement de moteur diesel
DE102004049048A1 (de) * 2004-10-08 2006-04-13 Huss Umwelttechnik Gmbh Glühkerzenstutzen/Lufteinleitung/Steuerungsverfahren

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604868A (en) * 1982-12-04 1986-08-12 Mazda Motor Corporation Cleaner control for diesel engine exhaust gases
US4541239A (en) * 1983-06-20 1985-09-17 Nissan Motor Company, Ltd. Exhaust purification apparatus
US4615173A (en) * 1983-11-09 1986-10-07 Hitachi, Ltd. Exhaust emission control apparatus for diesel engine
US4936093A (en) * 1987-09-08 1990-06-26 Webasto Ag Fahrzeugtechnik Soot-filtering unit for the exhaust gas section of a diesel internal combustion engine
US5094075A (en) * 1988-11-04 1992-03-10 Kloeckner-Humboldt-Deutz Ag Particulate filter system
US4912920A (en) * 1989-02-02 1990-04-03 Toa Nenryo Kogyo Kabushiki Kaisha Ultrasonic burner system for regenerating a filter
US5207990A (en) * 1990-06-01 1993-05-04 Nissan Motor Co., Ltd. Exhaust gas purifying device for internal combustion engine
US5209187A (en) * 1991-08-01 1993-05-11 Institute Of Gas Technology Low pollutant - emission, high efficiency cyclonic burner for firetube boilers and heaters
US5522218A (en) * 1994-08-23 1996-06-04 Caterpillar Inc. Combustion exhaust purification system and method
US6023930A (en) * 1995-06-28 2000-02-15 Mitsubishi Heavy Industries, Ltd. Black smoke eliminating device for internal combustion engine and exhaust gas cleaning system including the device
US20030118964A1 (en) * 2001-12-11 2003-06-26 Walter Blaschke Combustion chamber assembly for a heating device
US20050257518A1 (en) * 2002-06-04 2005-11-24 Jean-Claude Fayard Methods and device for filtration of exhaust gases for a diesel engine with a filtration surface which is variable by means of controlled obstruction
US20060218902A1 (en) * 2005-03-31 2006-10-05 Solar Turbines Incorporated Burner assembly for particulate trap regeneration
US20060272212A1 (en) * 2005-06-07 2006-12-07 Edlund David J Hydrogen-producing fuel processing assemblies, heating assemblies, and methods of operating the same

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110203257A1 (en) * 2007-08-20 2011-08-25 Parker Hannifin Corporation Diesel dosing system for active diesel particulate filter regeneration
US9032710B2 (en) * 2007-08-20 2015-05-19 Parker-Hannifin Corporation Diesel dosing system for active diesel particulate filter regeneration
US20130125543A1 (en) * 2010-08-20 2013-05-23 Mack Trucks, Inc. Heating apparatus for internal combustion engine exhaust aftertreatment
EP2606207A1 (fr) * 2010-08-20 2013-06-26 Mack Trucks, Inc. Appareil de chauffage pour post-traitement de l'échappement d'un moteur à combustion interne
EP2606207A4 (fr) * 2010-08-20 2014-12-31 Mack Trucks Appareil de chauffage pour post-traitement de l'échappement d'un moteur à combustion interne
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US20160123584A1 (en) * 2012-09-15 2016-05-05 Honeywell International Inc. Burner control system
US9657946B2 (en) * 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US20140080075A1 (en) * 2012-09-15 2014-03-20 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9234661B2 (en) * 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US11739718B2 (en) 2013-10-16 2023-08-29 Cummins Filtration Ip, Inc. Electronic filter detection feature for liquid filtration systems
US11680547B2 (en) 2013-10-16 2023-06-20 Cummins Filtration Ip, Inc. Electronic filter detection feature for liquid filtration systems
US11015556B2 (en) 2013-10-16 2021-05-25 Cummins Filtration Ip, Inc. Electronic filter detection feature for liquid filtration systems
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
AU2021209344B2 (en) * 2015-12-22 2023-02-09 Cummins Filtration Ip, Inc. Filtration monitoring systems
US11149701B2 (en) * 2015-12-22 2021-10-19 Cummins Filtration Ip, Inc. Filtration monitoring system that monitors dual filtration systems
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
CN107638768A (zh) * 2017-10-13 2018-01-30 许陈菲 一种煤炭燃烧废气处理排气管
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
CN112012815A (zh) * 2019-05-30 2020-12-01 日本碍子株式会社 废气混合器、废气净化装置以及废气净化方法
US20230296248A1 (en) * 2022-03-16 2023-09-21 Valmet Ab Mounting system for a sensor in a ductwork
US11965652B2 (en) * 2022-03-16 2024-04-23 Valmet Ab Mounting system for a sensor in a ductwork
US20230383681A1 (en) * 2022-05-25 2023-11-30 Tenneco Automotive Operating Company Inc. Selective catalytic reduction catalyst pre-heating burner assembly and method of controling burner emissions
US11885251B2 (en) * 2022-05-25 2024-01-30 Tenneco Automotive Operating Company Inc. Selective catalytic reduction catalyst pre-heating burner assembly and method of controlling burner emissions

Also Published As

Publication number Publication date
FR2902137B1 (fr) 2008-08-01
CA2658216A1 (fr) 2007-12-13
EP2024614A1 (fr) 2009-02-18
FR2902137A1 (fr) 2007-12-14
WO2007141433A1 (fr) 2007-12-13

Similar Documents

Publication Publication Date Title
US20090288399A1 (en) Burner And Method For The Regeneration Of Filtration Cartridges And Devices Equipped With Such Burner
CN102144080B (zh) 用于内燃发动机的排气控制装置
US4686827A (en) Filtration system for diesel engine exhaust-II
US4576617A (en) Apparatus comprising the combination of filter apparatus and regeneration apparatus and process for regenerating the filter apparatus using the regeneration apparatus
US7481045B2 (en) Method for the post-injection of hydrocarbon-, alcohol- and/or reducing-agent-type regeneration solution (e.g. diesel fuel and/or urea and/or ammoniacal solution) for the regeneration of diesel engine exhaust gas filtration systems
US8196388B2 (en) Heating device for exhaust gas in internal combustion engine
US8631647B2 (en) System and method for regenerating an engine exhaust after-treatment device
US5829248A (en) Anti-pollution system
US20100146939A1 (en) Inner flame burner for regeneration of diesel particulate filter
EP0380838A1 (fr) Dispositif de combustion ultrasonore pour la régénération d'un filtre
US7392652B2 (en) System and method for diesel particulate trap regeneration in a motor vehicle with an auxiliary power unit
KR20090112156A (ko) 배기가스 저감장치 및 그 제어방법
JP2007009701A (ja) エンジンの排ガス浄化装置
US5014511A (en) Filtration system for diesel engine exhaust-II
KR100679716B1 (ko) 공기흡입형 내연기관 배기가스 가열장치
US8142552B2 (en) Filter purge system utilizing a reactive propellant
KR20100116898A (ko) 디젤내연기관용 매연저감장치
JP4162239B2 (ja) 排気浄化部材の再生装置及び再生方法
JP2003049636A (ja) 燃焼器
JP2003035130A (ja) 煤煙低減装置の再生方法とこれを用いた再生装置
JP4162238B2 (ja) 排気浄化部材の再生方法及び排気浄化部材の再生装置
KR20070002728A (ko) 저온배기차량용 매연저감 시스템
KR100782131B1 (ko) 내연기관 배기가스 가열장치
JPH0114726Y2 (fr)
KR101292338B1 (ko) 액상 연료를 사용하는 디젤엔진의 배기가스 정화용 버너의 연소방법 및 이를 이용한 버너장치

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION