Internal combustion engine

Internal combustion engine according to the invention comprises an exhaust treatment apparatus provided in an exhaust passage, a burner apparatus provided upstream of the exhaust treatment apparatus for increasing exhaust temperature, and a variable mechanism for varying valve timing of an exhaust valve. The variable mechanism is controlled in such a manner that, when a flow amount of exhaust gas passing through the burner apparatus is equal to or more than a predetermined value, the exhaust valve opens in the middle of piston descending during an expansion stroke. When the exhaust valve is opened at this timing, high-temperature exhaust or combustion gas existing in combustion chamber at this time is sent to the burner apparatus, making it possible to increase atmosphere gas temperature of the burner apparatus. Therefore, even when flow amount of exhaust gas is increased to the predetermined value or more, sufficient ignition performance can be ensured.

EXHAUST GAS HEATING APPARATUS

An exhaust gas heating apparatus () according to the present invention comprises an expansion chamber () having an inflow port () and an outflow port (), a fuel supplying element () for supplying fuel into the expansion chamber, a fuel diffusing plate () for dispersing the fuel in the expansion chamber, and ignition means () for igniting the fuel in the expansion chamber, wherein an exhaust passage () communicated with the inflow port is connected tangentially to a circular peripheral surface () of the expansion chamber, an axis (A) thereof is deviated from an axis (B) of the exhaust passage communicated with the outflow port, and the fuel diffusing plate extends along the peripheral surface of the expansion chamber from close proximity of the inflow port in such a manner as to form a partition between the inflow and outflow ports. 14.-. (canceled)5. An exhaust gas heating apparatus for an internal combustion engine for heating an exhaust gas introduced to an exhaust emission purifier from the internal combustion engine comprising:an expansion chamber having an inflow port into which the exhaust gas flows and an outflow port for discharging the exhaust gas inpouring from the inflow port, wherein the inflow port and the outflow port are communicated with an exhaust passage;a fuel supplying element disposed in the expansion chamber to supply fuel into the expansion chamber;a fuel diffusing plate disposed in the expansion chamber to be opposed to the fuel supplying element, wherein the fuel supplied into the expansion chamber from the fuel supplying element collides with the fuel diffusing plate to be dispersed in the expansion chamber; andignition means disposed in the expansion chamber to ignite the fuel supplied into the expansion chamber from the fuel supplying element, whereinthe expansion chamber has a circular peripheral surface,the exhaust passage communicated with the inflow port is connected tangentially to the peripheral surface of the expansion chamber, ...

Burner device for raising temperature of exhaust gas

A burner device placed upstream of an exhaust treatment device mounted in an exhaust pipe to raise a temperature of an exhaust gas, comprises a fuel supply valve for supplying fuel into the exhaust pipe, an igniter that ignites the fuel supplied from the fuel supply valve, and a burner catalyst held in the exhaust pipe through a support member. The support member is formed in a corrugated shape in cross section including outer arc-shaped portions in contact with the exhaust pipe, inner arc-shaped portions in contact with an outer peripheral member of the burner catalyst, and coupling portions for coupling the outer arc-shaped portions and the inner arc-shaped portions to each other.

SYSTEM FOR WORKING MACHINE

An emissions abatement system for an engine system having an engine and an after-treatment system is provided. The emissions abatement system is configured for operation in an off-highway vehicle and comprises a controller arranged to: receive an input indicative of an intent to start the vehicle; upon receipt of said input, activate a heating component to raise an operating temperature of at least a portion of the after-treatment system; determine when the after-treatment system has reached a first heated condition; once the first heated condition has been reached, direct the engine to be started and direct the vehicle to operate in a first mode; determine when the after-treatment system has reached a second heated condition; and once the second heated condition has been reached, direct the vehicle to operate in a second mode. 1. An emissions abatement system for an engine system having an engine and an after-treatment system , the emissions abatement system being configured for operation in an off-highway vehicle and comprising a controller arranged to:receive an input indicative of an intent to start the vehicle,upon receipt of said input, activate a heating component to raise an operating temperature of at least a portion of the after-treatment system,determine when the after-treatment system has reached a first heated condition,once the first heated condition has been reached, direct the engine to be started and direct the vehicle to operate in a first mode;determine when the after-treatment system has reached a second heated condition, andonce the second heated condition has been reached, direct the vehicle to operate in a second mode.2. The emissions abatement system according to claim 1 , wherein in the first mode claim 1 , the vehicle is controlled to maintain the load on the engine below a predetermined load threshold.3. The emissions abatement system according to claim 2 , wherein claim 2 , in the second mode claim 2 , vehicle operations are not ...

HEATER DIAGNOSTICS IN HEAVY-DUTY MOTOR VEHICLE ENGINES

A heavy duty truck includes a diesel engine, an exhaust after-treatment system, and an engine control unit. The exhaust after-treatment system may include one or more selective catalytic reduction systems, each with a respective heater, and each heater with a respective pair of temperature sensors, one upstream and the other downstream of the heater. Such systems may be used to perform diagnostic methods including populating a lookup table having heat energy supplied to an exhaust gas stream by the diesel engine as a first independent variable, heat energy supplied to the exhaust gas stream by a heater as a second independent variable, and a resulting temperature as an output. Such a lookup table can be used to maintain a temperature of the exhaust gas flow at a constant target temperature. 1. A method , comprising:operating a diesel engine of a heavy-duty truck such that the diesel engine generates an exhaust gas flow; andwhile operating the diesel engine, operating an exhaust after-treatment system of the heavy-duty truck to maintain a temperature of the exhaust gas flow at a selective catalytic reduction system of the exhaust after-treatment system at a constant target temperature;wherein operating the exhaust after-treatment system to maintain the temperature at the constant target temperature includes calculating a rate at which heat energy is provided from the diesel engine to the exhaust gas flow, calculating a rate at which heat energy is provided from a heater of the exhaust after-treatment system to the exhaust gas flow, determining an expected value of the temperature using the calculated rates at which heat energy is provided from the diesel engine and the heater to the exhaust gas flow, comparing the expected value of the temperature to a measurement of the temperature, and using a result of the comparison to adjust operation of the exhaust after-treatment system.2. The method of wherein the target temperature minimizes a fuel penalty incurred by ...

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

An upper part of FIG. represents a catalyst warming-up control when a normal fuel is used, and a lower part of FIG. represents the catalyst warming-up control when a heavy fuel is used. As understood from a comparison between the upper part and the lower part of FIG. the start timing of the ignition period and the total injection amount of the injector in each cycle when the heavy fuel is used are the same as those when the normal fuel is used, though the ratio of the intake stroke injection and the expansion stroke injection to the total injection amount of the injector is changed to increase the fuel amount of the expansion stroke injection as compared with the case where the normal fuel is used. 1. A control device for an internal combustion engine , the internal combustion engine comprising:an injector which is provided in an upper part of a combustion chamber and is configured to inject fuel from a plurality of injection holes into a cylinder;a spark plug which is configured to ignite an air-fuel mixture in the cylinder using a discharge spark, the spark plug being provided on a downstream side of the fuel injected from the plurality of injection holes and above a contour surface of a fuel spray pattern which is closest to the spark plug among the fuel spray patterns injected from the plurality of injection holes; andan exhaust gas cleaning catalyst which is configured to clean an exhaust gas from the combustion chamber,wherein in order to activate the exhaust gas cleaning catalyst, the control device is configured to control the spark plug so as to generate the discharge spark in an ignition period retarded from a compression top dead center, and control the injector so as to perform first injection at a timing advanced from the compression top dead center and second injection at a timing retarded from the compression top dead center, the second injection being performed so that an injection period overlaps with at least a part of the ignition period, andthe ...

Apparatus and method for gaseous emissions treatment with induction heating of loop conductors

An assembly for treating gaseous emissions includes a substrate body having cells for the passages of emissions gas. Lengths of metal wire are located in selected ones of the cells and an induction heating coil is mounted adjacent the substrate body for generating a varying electromagnetic field. In this way the metal wires are heated, resulting in heating of the substrate body and heating of exhaust gas flowing in the cells. Individual lengths of wire or wire lengths that are joined together are configured as loop conductors. 1. An assembly for treating gaseous emissions comprising a substrate body having a plurality of cells for the passage of emissions gas , metal wire located in each of a first set of the plurality of cells , and an induction heating coil mounted adjacent the substrate body for generating a varying electromagnetic field , thereby inductively to heat the metal wire and thereby to heat the substrate body , wherein the metal wire is configured as a loop conductor.2. The assembly of claim 1 , there being a length of metal wire in each of the first set of cells claim 1 , the wire being hollow.3. The assembly of claim 1 , wherein the metal wire comprises lengths thereof in respective ones of the first set of cells the wire lengths joined together to form a continuous inductance loop conductor.4. The assembly of claim 1 , the substrate body having a front for entry of gaseous emissions to be treated and a back for exit of treated gaseous emissions claim 1 , joins between the wire lengths being at the front and back ends.5. The assembly of claim 1 , the substrate body having a front for entry of gaseous emissions to be treated and a back for exit of treated gaseous emissions claim 1 , the loop further including a portion located in front of the front end for intercepting and inductively preheating gaseous emissions entering the substrate body.6. The assembly as claimed in claim 1 , the location of the metal wire selected to obtain a generally uniform ...

METHOD OF REDUCING WARM-UP TIME OF AN AFTERTREATMENT DEVICE AND A VEHICLE SYSTEM FOR THE SAME

A method of reducing warm-up time of an aftertreatment device and a vehicle system for the same are disclosed. Fuel is injected into a plurality of cylinders of an internal combustion engine which is controlled, via a controller. The fuel in a first subset of the plurality of cylinders is combusted to produce a first exhaust product having excess fuel. The fuel in a second subset of the plurality of cylinders is combusted to produce a second exhaust product having excess air. The first exhaust product is expelled through a turbocharger and a valve is actuated to route the second exhaust product away from a dedicated EGR system and downstream from the turbocharger. The excess fuel of the first exhaust product and the excess air of the second exhaust product are mixed downstream from the turbocharger to create an exothermic reaction that produces heat to warm up the aftertreatment device.

CATALYST OXYGEN PURGE CONTROL APPARATUS AND METHOD

A catalyst oxygen purge control method may include a catalyst oxygen purge control method during a cold engine period of a catalyst oxygen purge control apparatus which includes a three way catalytic converter through which an exhaust gas combusted when air and fuel are mixed in a combustion chamber is exhausted and the exhaust gas passes, wherein the method includes determining whether a fuel cut condition of an injector which injects the fuel to the combustion chamber is satisfied, performing fuel cut of the injector when the fuel cut condition is satisfied, measuring an oxygen storage capacity of the three way catalyst, and adjusting an oxygen purge time based on the measured oxygen storage capacity. 1. A catalyst oxygen purge control apparatus , comprising:an exhaust system which exhausts an exhaust gas generated in an engine;a three way catalytic converter (TWC) which supplies a catalyst to the exhaust system;an oxygen sensor which detects an oxygen storage capacity (OSC) of the three way catalytic converter;a determining device which is configured to quantitatively determine a degradation level of the catalyst using the oxygen storage capacity to determine a change control condition which changes an oxygen purge time of the three way catalyst; andan oxygen purge controller which controls the catalytic converter according to the change control condition to control the oxygen purge time.2. The catalyst oxygen purge control apparatus of claim 1 , wherein the oxygen purge time is configured to be controlled before activating the three way catalyst during a cold engine period.3. The catalyst oxygen purge control apparatus of claim 1 , wherein the change control condition is at least one of an engine ignition timing claim 1 , an idle revolution per minute (RPM) claim 1 , a CAM timing claim 1 , an air/fuel ratio claim 1 , and an injecting condition.412-. (canceled) The present application claims priority to Korean Patent Application No. 10-2016-0129837 filed on Oct. ...

EXHAUST GAS HEATING ARRANGEMENT

An exhaust gas heating arrangement includes a heating unit having a jacketed heating element having a jacket and at least one heating conductor which extends in the jacket and is surrounded by insulating material. The heating unit is spirally wound surrounding a longitudinal center axis (L), wherein a radially inner winding end region of the heating unit is offset with respect to a radially outer winding end region of the heating unit in the direction towards the longitudinal center axis (L). 1. An exhaust gas heating arrangement , comprising:a heating unit including a jacketed heating element;said jacketed heating element having a jacket and at least one heating conductor running in said jacket and said heating conductor being surrounded by insulating material;said heating unit being spirally wound surrounding a longitudinal center axis (L); and,said heating unit having a radial outer winding end region and a radial inner winding end region offset with respect to said radial outer winding end region in a direction toward said longitudinal center axis (L).2. The exhaust gas heating arrangement of claim 1 , wherein said heating unit includes a heat transfer surface formation carried on said jacket.3. The exhaust gas heating arrangement of claim 2 , wherein said heating unit has an outer surface built up with catalytically effective material in at least one of the following: the region of said jacket and the region of said heat transfer surface formation.4. The exhaust gas heating arrangement of claim 2 , wherein said heat transfer surface formation includes at least one of the following:(a) a heat transfer element surrounding said jacketed heating element in a helical manner;(b) a plurality of disc-like heat transfer elements arranged in succession in a longitudinal direction of said jacketed heating element;(c) at least one heat transfer element running in a meandering manner along said jacketed heating element and through which said jacketed heating element passes ...

CONTROLLER FOR INTERNAL COMBUSTION ENGINE

A controller includes an air-fuel ratio control unit that calculates an air-fuel ratio F/B correction value and an air-fuel ratio learning value and corrects an amount of fuel supplied to each cylinder based on the air-fuel ratio F/B correction value FAF and the air-fuel ratio learning value KG. The controller further includes a dither control unit that executes dither control to adjust the amount of fuel supplied to each cylinder, corrected by the air-fuel ratio control unit, so that at least one of the cylinders is set to a rich combustion cylinder and at least a further one of the cylinders is set to a lean combustion cylinder. When the dither control is executed, the air-fuel ratio control unit prohibits execution of air-fuel ratio learning control and executes air-fuel ratio feedback control. 1. A controller for an internal combustion engine that includes a catalyst arranged in an exhaust passage into which exhaust gas is discharged from a plurality of cylinders , wherein the catalyst purifies the exhaust gas , the controller comprising:an air-fuel ratio control unit that is configured to correct an amount of fuel supplied to each of the plurality of cylinders based on an air-fuel ratio feedback correction value and an air-fuel ratio learning value; anda dither control unit that is configured to execute dither control when there is a request for increasing a temperature of the catalyst, wherein the dither control adjusts the amount of fuel supplied to each of the plurality of cylinders that is corrected by the air-fuel ratio control unit so that at least one of the plurality of cylinders is set to a rich combustion cylinder in which an air-fuel ratio of a mixture is richer than a stoichiometric air-fuel ratio and at least a further one of the plurality of cylinders is set to a lean combustion cylinder in which an air-fuel ratio of a mixture is leaner than the stoichiometric air-fuel ratio, whereinthe air-fuel ratio control unit is configured to execute air-fuel ...

METHOD OF INCREASING VOLUMETRIC THROUGHPUT OF AN INTERNAL COMBUSTION ENGINES USED IN VAPOR DESTRUCTION APPLICATIONS

A method and device for controlling emissions of VOC's comprises transporting VOC's to an engine and transporting the exhaust from the engine into a manifold. Supplemental air is transporting into the manifold and heat is transferred from the exhaust to the supplemental air within the manifold. The supplemental air is mixed with the exhaust and the mixture is transferred to a pollution abatement device. 1. A system for controlling emissions of VOC's by combustion of said VOC's in an internal combustion engine , the system comprising:An inlet conduit for connection to a source of VOC's, an internal combustion engine that is connected to the inlet conduit;an exhaust path that receives exhaust from the internal combustion engine;an air source of supplemental air;a manifold comprising a first conduit that receives the exhaust from the exhaust path and a second conduit that receives supplemental air from the air source, the manifold configured to transfer heat from the exhaust in the first conduit to the supplemental air in the second conduit; andan abatement device in fluid communication with the first conduit downstream of the manifold; anda fourth conduit in communication with the first conduit upstream of the abatement device.2. (canceled)3. (canceled)4. The system of claim 1 , further comprising a VOC measurement device configured to measure the amount of VOCs in the first conduit.5. (canceled)6. The system of claim 1 , wherein the manifold is configured such that flow through the second conduit and the third conduit are in opposite directions.7. The system of claim 1 , wherein the abatement device is a catalytic convertor.8. The system of claim 1 , wherein the air source of supplemental air is a supercharger.9. The system of claim 1 , wherein the fourth conduit in communication with the first conduit upstream of the manifold.10. A method of controlling emissions of VOC's claim 1 , the method comprising:transporting VOC's to an engine,transporting exhaust from the ...

METHOD AND DEVICE FOR THE EXHAUST GAS AFTERTREATMENT OF A COMBUSTION ENGINE

A method for the exhaust gas aftertreatment of a combustion engine having an exhaust system in which at least three catalytic converters and at least three lambda probes are disposed. Downstream of a first catalytic converter, an actively heatable catalytic converter is provided, which is actively heated at a start of the combustion engine. The lambda control of the combustion engine is carried out in each case by that lambda probe disposed downstream of the respective last catalytic converter to reach the light-off temperature thereof. Also, an exhaust gas aftertreatment system for implementing such a method. 1. A method for the exhaust gas aftertreatment of a combustion engine , whose exhaust is connected to an exhaust system ,in which exhaust system are disposed, in the direction of exhaust gas flow through the exhaust system, a first catalytic converter, a second catalytic converter downstream of the first catalytic converter, and a third catalytic converter downstream of the second catalytic converter;in an exhaust duct of which exhaust system are disposed a first lambda probe upstream of the first catalytic converter, a second lambda probe downstream of the first catalytic converter and upstream of the second catalytic converter, a third lambda probe downstream of the second catalytic converter and upstream of the third catalytic converter; andwherein one of the catalytic converters disposed downstream of the first catalytic converter being actively heatable;the method comprising the following steps:actively heating one of the catalytic converters downstream of the first catalytic converter;comparing the component temperature of the heated catalytic converter to the particular light-off temperature of the catalytic converter; andcontrolling the fuel/air ratio via a lambda control of the combustion engine via that lambda probe disposed downstream of the last three-way catalytic converter to reach the light-off temperature thereof.2. The method for the exhaust ...

METHOD FOR REGENERATING CATALYST FOR OXIDIZING COMPRESSED NATURAL GAS VEHICLE EXHAUST GAS

This invention relates to a method of regenerating a deactivated catalyst, which carries precious metal components including platinum and palladium and which is used to purify a gas exhausted from a compressed natural gas lean-burn engine. The method includes creating a reduction atmosphere over the catalyst. The creating the reduction atmosphere over the catalyst includes controlling an air-fuel ratio or directly injecting CNG fuel into the catalyst. 1. A method of regenerating a deactivated catalyst for purifying a gas exhausted from a compressed natural gas lean-burn engine , the method comprising:creating a reduction atmosphere over the catalyst.2. The method of claim 1 , further comprising:judging deactivation of the catalyst.3. The method of claim 2 , wherein the judging the deactivation of the catalyst includes measuring a difference between temperatures at an inlet and an outlet of the catalyst or measuring an accumulated traveling distance of a vehicle.4. The method of claim 1 , wherein the creating the reduction atmosphere over the catalyst includes controlling an air-fuel ratio or directly injecting CNG fuel into the catalyst.5. The method of claim 4 , wherein the controlling the air-fuel ratio includes reducing the air-fuel ratio. The present invention relates, in general, to a method of regenerating a catalyst for oxidizing a gas exhausted from a compressed natural gas vehicle and, more particularly, to a method of regenerating a catalyst, which carries precious metal components including platinum and palladium and which is used to purify a gas exhausted from a compressed natural gas lean-burn engine, the method including creating a reduction atmosphere.Vehicles using CNG (Compressed Natural Gas) as fuel have merits in that the vehicles are environmentally friendly, have excellent economic feasibility, and emit only a small amount of toxic CO and gas that is almost completely odor- and smoke-free.Examples of the related art of a catalyst for purifying a ...

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A control device for an internal combustion engine which does not require fitting of a feed forward term on an occasion of calculation of a fuel amount to be supplied at a time of temperature raising control is provided. According to the present embodiment, by feed forward control using a steady-state DPF model and a steady-state CCO model, a basic amount (feed forward term) of a fuel amount Qthat is added from a fuel injector in the temperature raising control can be calculated. Namely, the feed forward term can be calculated without depending on a control map. If the feed forward term can be calculated without depending on the control map, fitting of the feed forward term with use of the controlling map is not required. 1. A control device for an internal combustion engine , comprising:a first purifying device that is provided in an exhaust passage of the internal combustion engine and has an oxidation catalyst function;a second purifying device that is provided downstream of the first purifying device, in the exhaust passage;a fuel supply device that supplies fuel to upstream of the first purifying device; anda control device that controls a temperature of the second purifying device to a target temperature by controlling a fuel supply amount from the fuel supply device,wherein the control device comprises a first model that is constructed based on a relation of a heat balance established in the first purifying device, and a second model that is constructed based on a relation of a heat balance established in the second purifying device,the first model and the second model are constructed on a precondition that all of the fuel supplied from the fuel supply device is converted into heat in the first purifying device, and all of the converted heat contributes to raising a temperature of the first purifying device, andthe control device is configured to calculate the temperature of the first purifying device by inputting the target temperature into the second model ...

Diesel Dissipation Dryer Device

Improvements in a diesel emission control dryer is disclosed. The improvements provide a catalytic glow plug emission free exhaust system device that will product zero emission for clean air for future life. The diesel emission control dryer changes the current ways available to lower emissions. The process begins with the wet fuel exhaust exiting the turbocharger, spinning in the same direction. A plurality of glow plugs are used to heat the wet exhaust gas to dry the wet exhaust and burn all fuel and particulates. As the turbocharger glow plugs heat and dissipate all fuel and exhaust emissions that will exit the diesel emission control dryer at 0%. 1. A diesel green diesel dissipation dryer emissions control comprising:an elongated cylindrical tubular body;said elongated cylindrical tubular body having a receiving end for receiving wet vapors from exhaust of an engine;said elongated cylindrical tubular body further having a plurality of glow plugs extending from an outside of said elongated cylindrical tubular body to an inside of said elongated cylindrical tubular body;at least one return tube that is connected said elongated cylindrical tubular body at a location in front and behind said plurality of glow plugs, andat least a sensor that monitors dried exhaust that has been dried by said plurality of glow plugs.2. The diesel green emissions control dryer according to wherein said engine is a diesel engine.3. The diesel green emissions control dryer according to wherein said dryer is located after a turbocharger.4. The diesel green emissions control dryer according to wherein said plurality of glow plugs is seven glow plugs placed equal distance around said cylindrical tubular body.5. The diesel green emissions control dryer according to wherein said dryer operates on engines selected from the group consisting of Caterpillar claim 1 , Cummins claim 1 , Detroit Diesel Corporation claim 1 , Daimler-Chrysler claim 1 , Hino claim 1 , International claim 1 , Isuzu ...

ABNORMALITY DETECTION METHOD FOR AFTER TURBO CATALYST

Provided is a method for detecting abnormality of an after turbo catalyst (ATC) where fuel from a fuel injection device receiving a post injection command from a controller undergoes oxidation reaction in an exhaust pipe and resultant reaction heat heats the exhaust gas, which provides an ATC-entry-side temperature measuring means measuring a temperature on an entry side of ATC to transmit a measured value to the controller and an ATC-downstream-side temperature measuring means measuring a temperature downstream of ATC The controller which transmitted the post injection command, determines whether a fuel injection device normally operates if temperature downstream of ATC is not nonelevated to that on the entry side of ATC and determines that ATC has abnormality if the fuel injection device normally operates. 1. A method for detecting any abnormality in an after turbo catalyst for oxidation reaction , in an exhaust pipe , of fuel from a fuel injection device by a post injection command from a controller , whereby resultant reaction heat heats exhaust gas , which comprises providingan ATC-entry-side temperature measuring means for measuring a temperature on an entry side of said after turbo catalyst to transmit a measured value to said controller andan ATC-downstream-side temperature measuring means for measuring a temperature downstream of said after turbo catalyst,the controller, which has transmitted the post injection command, determining whether the fuel injection device operates normally if the temperature downstream of the after turbo catalyst is nonelevated relative to the temperature on an entry side of the after turbo catalyst, and determining that the after turbo catalyst has abnormality if the fuel injection device operates normally.2. The method for determining abnormality in the after turbo catalyst as claimed in claim 1 , wherein said fuel injection device comprisesa supply pump for supplying the fuel under pressure,a common rail for storing the high- ...

CATALYST OXYGEN PURGE CONTROL APPARATUS AND METHOD

A catalyst oxygen purge control method may include a catalyst oxygen purge control method during a cold engine period of a catalyst oxygen purge control apparatus which includes a three way catalytic converter through which an exhaust gas combusted when air and fuel are mixed in a combustion chamber is exhausted and the exhaust gas passes, wherein the method includes determining whether a fuel cut condition of an injector which injects the fuel to the combustion chamber is satisfied, performing fuel cut of the injector when the fuel cut condition is satisfied, measuring an oxygen storage capacity of the three way catalyst, and adjusting an oxygen purge time based on the measured oxygen storage capacity. 1. A catalyst oxygen purge control apparatus , comprising:an exhaust system which exhausts an exhaust gas generated in an engine;a three way catalytic converter (TWC) which supplies a catalyst to the exhaust system;an oxygen sensor which detects an oxygen storage capacity (OSC) of the three way catalytic converter;a determining device which is configured to quantitatively determine a degradation level of the catalyst using the oxygen storage capacity to determine a change control condition which changes an oxygen purge time of the three way catalyst; andan oxygen purge controller which controls the catalytic converter according to the change control condition to control the oxygen purge time.2. The catalyst oxygen purge control apparatus of claim 1 , wherein the oxygen purge time is configured to be controlled before activating the three way catalyst during a cold engine period.3. The catalyst oxygen purge control apparatus of claim 1 , wherein the change control condition is at least one of an engine ignition timing claim 1 , an idle revolution per minute (RPM) claim 1 , a CAM timing claim 1 , an air/fuel ratio claim 1 , and an injecting condition.4. A catalyst oxygen purge control method during a cold engine period of a catalyst oxygen purge control apparatus which ...

EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE

When the temperature of the exhaust gas flowing into an NSR catalyst exceeds a specific threshold temperature that is determined on the basis of the cetane number of fuel in such a way that the specific threshold temperature is set lower when the cetane number of the fuel is low than when it is high, fuel is supplied to the exhaust gas by fuel supply device to perform an NOreduction process for the NSR catalyst. If the quantity of heat generated in the NSR catalyst per unit time is smaller than a specific value while the NOreduction process is being performed, the NOreduction process in progress is suspended, and the NOreduction process is performed later on when the temperature of the exhaust gas flowing into the NSR catalyst exceeds an updated threshold temperature higher than the specific threshold temperature. 1. An exhaust gas purification system for an internal combustion engine comprising:{'sub': X', 'X', 'X', 'X, 'an NOstorage reduction catalyst provided in an exhaust passage of an internal combustion engine, which stores NOin exhaust gas when the exhaust gas has a lean air-fuel ratio higher than a theoretical air-fuel ratio and desorbs NOstored in it to let the desorbed NObe reduced by unburned fuel in the exhaust gas when the exhaust gas has a rich air-fuel ratio lower than the theoretical air-fuel ratio;'}{'sub': 'X', 'a fuel supply device for supplying fuel to the exhaust gas upstream of the NOstorage reduction catalyst; and'}a controller comprising at least one processor,wherein the controller configured to:determine, after fuel is supplied to a fuel tank of the internal combustion engine, a cetane number of the fuel used in the internal combustion engine after the supply of fuel; and{'sub': X', 'X', 'X', 'X', 'X, 'perform an NOreduction process by supplying fuel to the exhaust gas through the fuel supply device when an amount of NOstored in the NOstorage reduction catalyst is larger than or equal to a specific NOstorage amount and a temperature of the ...

METHOD FOR ENRICHING EXHAUST GASES WITH UNBURNT HYDROCARBON

In a method for enriching the exhaust gases of a combustion engine with unburnt hydrocarbon engine operating conditions are monitored and in-cylinder post injection of unburnt hydrocarbon into one predetermined cylinder of at least two cylinders connected to an exhaust manifold is performed when the monitored engine operating conditions equal predetermined engine operating conditions. The predetermined engine operating conditions are set for resulting in a substantially zero flow of the post-injected hydrocarbon to an EGR circuit for the specific design of the engine in operation. 1101012141214131214262327121214. Method for enriching the exhaust gases of a combustion engine () with unburnt hydrocarbon , said combustion engine () comprising a plurality of cylinders () , at least one exhaust manifold () for receiving exhaust gases from at least two of said plurality of cylinders () , and an EGR circuit for supplying exhaust gases from said exhaust manifold () to an air inlet () of at least one of said cylinders () , wherein said exhaust manifold () comprises a first outlet () for supplying exhaust gases to an exhaust aftertreatment system () , and a second outlet () for supplying exhaust gases to said EGR circuit , characterised by the steps of monitoring engine operating conditions and performing in-cylinder post injection of said unburnt hydrocarbon into one predetermined cylinder () of said at least two cylinders () connected to said exhaust manifold () when the monitored engine operating conditions equal predetermined engine operating conditions , which predetermined engine operating conditions are set for resulting in a substantially zero flow of said post-injected hydrocarbon to the EGR circuit for the specific design of the engine in operation.223. The method according to claim 1 , characterised by the step of regenerating at least a part of said exhaust aftertreatment system () by means of said post-injected hydrocarbon.31212. The method according to any of ...

EXHUAST GAS HEATING APPARATUS

A heating apparatus and method for use in an exhaust gas system is provided that includes a container body defining an exhaust gas pathway, a heater flange component attached to an exterior of the container body, and a heater assembly disposed in the exhaust gas pathway and secured to the heater flange component. The heater assembly includes at least one heater element, a bracket assembly that secures the at least one heater element in the container body, and a conformal bracket for securing the at least one heater element to the bracket assembly. 1. A heating apparatus for an exhaust gas system , the heating apparatus comprising:a container body defining an exhaust gas pathway;a heater flange component attached to an exterior of the container body; and at least one heater element;', 'a bracket assembly that secures the at least one heater element in the container body; and', 'a conformal bracket for securing the at least one heater element to the bracket assembly., 'a heater assembly disposed in the exhaust gas pathway and secured to the heater flange component, the heater assembly including2. The heating apparatus according to claim 1 , wherein one of the heater flange component and the container body includes a plurality of tabs and the other one of the heater flange component and the container body defines a plurality of holes corresponding to the plurality of tabs claim 1 , the heater flange component being attached to the container body by inserting the plurality of tabs into the plurality of holes.3. The heating apparatus according to claim 1 , wherein the bracket assembly includes at least one post that secures the heater element to the container body.4. The heating apparatus according to claim 1 , wherein the conformal bracket defines a U-channel.5. The heating apparatus according to claim 1 , wherein the conformal bracket is selected from the group consisting of a rivet assembly and a staple member.6. The heating apparatus according to claim 1 , wherein ...

Exhaust gas heating device, associated exhaust line and vehicle

An exhaust gas purification device comprises a first heating element made from an electrically conductive material, a second heating element made from an electrically conductive material, and a power supply configured to circulate an electric current in the first heating element and in the second heating element. The power supply comprises a first electrode electrically connected to the first heating element and a second electrode electrically connected to the second heating element. The heating device includes a substrate extending between the first heating element and the second heating element, and a connecting element electrically connecting the first heating element and the second heating element.

METHOD AND SYSTEM FOR CATALYST TEMPERATURE CONTROL

Methods and systems are provided for improving catalyst function during an engine cold-start. In one example, at key-off, a duration elapsed till a subsequent key-on is predicted based on drive history and spatial awareness data. Then, based on the duration, an identity and order of operating one or more catalyst heating devices is selected. 1. A vehicle method , comprising: 'selectively operating one or more exhaust catalyst heating devices based on a combination including vehicle drive history and vehicle positional information.', 'at a vehicle-off event,'}2. The method of claim 1 , wherein the selectively operating includes selectively operating based on a predicted duration of vehicle parking claim 1 , the duration predicted based on the combination of vehicle drive history and vehicle positional information.3. The method of claim 2 , wherein the vehicle positional information includes each of a geostationary position of the vehicle at off claim 2 , and a relative position of landmarks and business establishments within a threshold radius of the geostationary position of the vehicle.4. The method of claim 2 , wherein the selectively operating includes operating the one or more exhaust catalyst heating devices when the predicted duration is lower than a threshold duration claim 2 , and maintaining the one or more exhaust catalyst heating devices disabled when the predicted duration is higher than the threshold duration.5. The method of claim 4 , wherein the selectively operating further includes adjusting an order and period of operating the one or more exhaust catalyst heating devices in a given drive cycle based on the combination of vehicle drive history and vehicle positional information claim 4 , the order and period further adjusted based on vehicle operating conditions including a battery state of charge and a fill level of a fuel tank.6. The method of claim 5 , wherein the one or more exhaust catalyst heating devices include an electrical heater ...

ENGINE CONTROL APPARATUS

An ECU calculates a target temperature of a bed temperature of a DOC under PM regeneration control at each control period by the elements M to M. Among these elements, the estimating section M estimates a passing SOamount at each control period by using an inflow SOx amount and a representative temperature. The estimating section M estimates a SOreduction rate, which is a ratio of reduction from SOto SOin the DOC . Then, the calculating unit M calculates an amount of SOthat is allowed to desorb from the DOC as an allowable desorption SOamount at each control period, by using a constrained SOamount which corresponds to a constraint concerning sulfate white smoke, the passing SOamount, and the SOreduction rate. 1. An engine control apparatus comprising:a purifying device provided in an exhaust pipe of a diesel engine;a fuel adding valve for supplying unburnt fuel into the purifying device; and acquire a representative temperature that is a representative value of the purifying device at each predetermined control period;', 'estimate an amount of SOx flowing into the purifying device as an inflow SOx amount at each control period;', 'estimate a final adsorbed SOx distribution by using the inflow SOx amount and the representative temperature at each control period, the final adsorbed SOx distribution expressed as a graph in which an amount of SOx that finally adsorbs to the purifying device in each temperature during temperature increase of the purifying device is related with the representative temperature;', {'sub': 3', '3, 'estimate an amount of SOx that flows into the purifying device in a state of SOx and passes without adsorbing to the purifying device to be converted in a state of SOas a passing SOamount at each control period, by using the inflow SOx amount and the representative temperature;'}, {'sub': 2', '3', '2, 'estimate a SOreduction rate which is a ratio of reduction of SOto SOin the purifying device;'}, {'sub': 3', '3', '3', '3', '2, 'calculate an amount ...

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

An exhaust purification system of an internal combustion engine comprising an exhaust treatment catalyst () arranged in an engine exhaust passage and a heat and hydrogen generation device () able to feed only heat or heat and hydrogen to the exhaust treatment catalyst (). When the warm-up operation of the heat and hydrogen generation device () is completed and a reforming action by a reformer catalyst () becomes possible, if the temperature of the exhaust treatment catalyst () is a preset activation temperature or more, a partial oxidation reaction is performed at the heat and hydrogen generation device () and the generated heat and hydrogen are fed to the exhaust treatment catalyst (). At this time, if the temperature of the exhaust treatment catalyst () is less than the preset activation temperature, a complete oxidation reaction by a lean air-fuel ratio is continued and a heat is fed to the exhaust treatment catalyst (). 1. An exhaust purification system of an internal combustion engine comprising:an exhaust treatment catalyst arranged in an engine exhaust passage,a heat and hydrogen generation device able to feed only heat or heat and hydrogen to the exhaust treatment catalyst so as to warm up the exhaust treatment catalyst, said heat and hydrogen generation device being provided with a reformer catalyst to which a combustion gas of fuel and air is fed; andan electronic control unit,wherein said electronic control unit is configured to perform an operation for warm-up of said heat and hydrogen generation device under a lean air-fuel ratio after startup of said heat and hydrogen generation device until a reforming action by the reformer catalyst becomes possible,said electronic control unit is configured to perform a partial oxidation reaction at said heat and hydrogen generation device and feed a generated heat and hydrogen to the exhaust treatment catalyst if a temperature of the exhaust treatment catalyst is a preset activation temperature or more when the ...

EXHAUST-GAS AFTERTREATMENT DEVICE FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR HEATING AN EXHAUST-GAS AFTERTREATMENT DEVICE

An exhaust-gas aftertreatment device for an internal combustion engine, for use in a motor vehicle, includes an exhaust tract with at least one exhaust pipe and at least one exhaust-gas aftertreatment element. The exhaust-pipe internal wall and/or the at least one exhaust-gas aftertreatment element have/has a vapour-sorbing material forming at least one exhaust-tract-side sorption element. 1. An exhaust-gas aftertreatment device for an internal combustion engine including an exhaust tract , wherein the exhaust tract comprises:an exhaust pipe having an internal wall;at least one exhaust-gas aftertreatment element; andan exhaust-tract-side sorption element including a vapour-sorbing material disposed on at least one of the internal wall of the exhaust pipe and the at least one exhaust-gas aftertreatment element.2. The exhaust-gas aftertreatment device according to claim 1 , wherein the at least one exhaust-tract-side sorption element comprises at least one of:a coating of the vapour-sorbing material on the at least one of the internal wall of the exhaust pipe and the at least one exhaust-gas aftertreatment element; andportions of the at least one exhaust-gas aftertreatment element produced at least in regions from the vapour-sorbing material.3. The exhaust-gas aftertreatment device according to claim 1 , wherein the at least one exhaust-gas aftertreatment element is at least one of a catalytic converter and a particle filter.4. The exhaust-gas aftertreatment device according to claim 1 , wherein a mass content of the vapour-sorbing material of the at least one sorption element decreases in an exhaust-gas flow direction.5. The exhaust-gas aftertreatment device according to claim 1 , wherein a mass content of the vapour-sorbing material of the at least one sorption element arranged in an outlet region of the exhaust tract increases in an exhaust-gas flow direction.6. The exhaust-gas aftertreatment device according to claim 1 , wherein the at least one sorption element ...

LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST GAS TEMPERATURE CONTROL

A variety of methods and arrangements for controlling the exhaust gas temperature of a lean burn, skip fire controlled internal combustion engine are described. In one aspect, an engine controller includes an aftertreatment system monitor and a firing timing determination unit. The aftertreatment monitor obtains data relating to a temperature of one or more aftertreatment elements, such as a catalytic converter. Based at least partly on this data, the firing timing determination unit generates a firing sequence for operating the engine in a skip fire manner such that the temperature of the aftertreatment element is controlled within its effective operating range. 1. An engine controller for operating a lean burn internal combustion engine in a skip fire manner , the engine including a plurality of working chambers with at least one working chamber having a deactivatable intake or exhaust valve , the engine controller comprising:an aftertreatment monitor arranged to obtain data relating to a temperature of an aftertreatment element in an engine exhaust system; anda firing timing determination unit that is arranged to determine a firing sequence for operating the at least one working chamber of the engine having a deactivatable intake or exhaust valve in a skip fire manner wherein the firing sequence is generated at least in part based on the aftertreatment element temperature data.2. An engine controller as recited in wherein the aftertreatment element temperature data is obtained from one selected from the group consisting of an aftertreatment element temperature model and a sensed aftertreatment element temperature.3. An engine controller as recited in wherein:the aftertreatment element temperature data is obtained from an aftertreatment element temperature model; and{'sub': 'x', 'the aftertreatment element temperature model is based on one or more selected from the group consisting of oxygen sensor data, NOsensor data, exhaust gas temperature, ambient temperature, ...

METHOD AND DEVICE FOR EXHAUST GAS AFTERTREATMENT IN AN INTERNAL COMBUSTION ENGINE

A device for exhaust gas aftertreatment in an internal combustion engine can be connected to an outlet of the internal combustion engine. The device comprises an exhaust gas system with an exhaust gas channel in which a three-way catalytic converter is arranged, and an exhaust gas burner with which hot burner exhaust gases can be fed into the exhaust gas channel at a feed point upstream from the three-way catalytic converter. The three-way catalytic converter is configured as a lambda probe catalytic converter and comprises a first catalyst volume and a second catalyst volume, whereby a lambda probe is arranged downstream from the first catalyst volume and upstream from the second catalyst volume, whereby the first catalyst volume has a lower oxygen storage capacity than the second catalyst volume. A method for exhaust gas aftertreatment in an internal combustion engine has such an exhaust gas aftertreatment device. 1. A method for exhaust gas aftertreatment in an internal combustion engine having a device for exhaust gas aftertreatment according to claim 1 , comprising the following steps:activating the exhaust gas burner, whereby the quantity of fuel fed to the exhaust gas burner and/or the quantity of fresh air fed to the exhaust gas burner is pilot-controlled,detecting the air-fuel ratio downstream from the first catalyst volume and upstream from the second catalyst volume of the three-way catalytic converter, andchanging the quantity of fuel and/or the fresh air quantity when a rich blow-out or a lean blow-out is detected at the lambda probe.2. The method for exhaust gas aftertreatment according to claim 1 , wherein:{'sub': 'B', 'in a first operating state of the exhaust gas burner, the quantity of fuel of the exhaust gas burner is pilot-controlled in such a way that the exhaust gas burner is operated with a sub-stoichiometric air-fuel ratio (λ<1) and'}{'sub': 'B', 'in a second operating state of the exhaust gas burner, the quantity of fuel of the exhaust gas ...

Catalyst body, electrically heated catalyst and motor vehicle with a catalyst

A catalyst body for an electrically heated catalyst has an electrical contacting assembly, which is arranged on the catalyst body and comprises an electrical conductor embedded in the catalyst body and extending in a longitudinal direction of the catalyst body and at least up to one end face of the catalyst body.

Fuel injectors for exhaust heaters

A fuel injector for an exhaust heater includes a cover and an air blast nozzle. The cover has a nozzle seat, a fuel inlet, and an air inlet, the nozzle seat arranged along a flow axis. The air blast nozzle is seated in the nozzle seat and has a unibody. The air blast nozzle unibody is in fluid communication with the fuel inlet and the air inlet arranged along the flow axis to port fuel and air into a combustion volume, e.g., to heat a stream of exhaust gas flowing between an engine and a catalytic reactor by combustion with fuel introduced through the fuel inlet and air introduced through the air inlet.

METHOD FOR HEATING EXHAUST

A method according to the present invention heats exhaust introduced to an exhaust emission purifier by injecting fuel into an exhaust passage through a fuel addition valve toward a heat generating portion of a glow plug disposed in the exhaust passage located upstream of the exhaust emission purifier, and then igniting the fuel. In the method, a rate of the fuel injected through the fuel addition valve which directly contacts the heat generating portion is set to between 8% and 55%. 1. A method for heating exhaust introduced to an exhaust emission purifier by injecting fuel into an exhaust passage through a fuel addition valve toward a heat generating portion of an ignition device disposed in the exhaust passage located upstream of the exhaust emission purifier , and then igniting the fuel , the method comprising:setting a rate of the fuel injected through the fuel addition valve which directly contacts the heat generating portion to between 8% and 55%.2. The method for heating exhaust as claimed in claim 1 , wherein an amount of fuel injected claim 1 , during a single injection operation claim 1 , through the fuel addition valve when the fuel is intermittently injected into the exhaust passage claim 1 , is set to between 10 mmand 75 mm.3. The method for heating exhaust as claimed in claim 2 , wherein duration of injection through the fuel addition valve during a single injection operation is set to between 1.5 ms and 15 ms.4. The method for heating exhaust as claimed in claim 1 , wherein an amount of fuel injected through the fuel addition valve per unit time is set to between 80 cc and 1 claim 1 ,000 cc per minute.5. The method for heating exhaust as claimed in claim 1 , wherein the fuel injected through the fuel addition valve diffuses in conical form claim 1 , and an area of the heat generating portion which overlaps the conical fuel injection region projected on a plane perpendicular to a center axis of the fuel injection region and containing an axis of the ...

VEHICLE EXHAUST GAS ABATEMENT APPARATUS

The present inventive concept relates to a vehicle exhaust gas abatement apparatus. The vehicle exhaust gas abatement apparatus includes: an exhaust gas discharging unit having an exhaust gas discharging pass which is formed on one side thereof and along which an exhaust gas generated from an engine of a vehicle is discharged; a catalytic converter connected to a rear end of the exhaust gas discharging unit along a direction in which the exhaust gas is discharged and removing harmful components in the exhaust gas using a catalyst; and a surface combustion unit coupled to one side of the exhaust gas discharging unit and heating an inner portion of the exhaust gas discharging unit so that the exhaust gas is heated to an activation temperature or higher of the catalyst and then arrives at the catalytic converter. 1. A vehicle exhaust gas abatement apparatus comprising:an exhaust gas discharging unit having an exhaust gas discharging pass which is formed on one side thereof and along which an exhaust gas generated from an engine of a vehicle is discharged;a catalytic converter connected to a rear end of the exhaust gas discharging unit along a direction in which the exhaust gas is discharged and removing harmful components in the exhaust gas using a catalyst; anda surface combustion unit coupled to one side of the exhaust gas discharging unit and heating an inner portion of the exhaust gas discharging unit so that the exhaust gas is heated to an activation temperature or higher of the catalyst and then arrives at the catalytic converter.2. The vehicle exhaust gas abatement apparatus of claim 1 , wherein the surface combustion unit is a fuel-type surface combustion unit heating an inner portion of the exhaust gas discharging unit by heat of a flame via a fuel.3. The vehicle exhaust gas abatement apparatus of claim 2 , wherein the exhaust gas discharging unit includes:a discharging housing portion which has a pipe shape and forms a place where the fuel-type surface ...

METHOD FOR OPERATING AN EXHAUST GAS BURNER

A method for operating an exhaust gas burner () downstream of an internal combustion engine () and upstream of an exhaust gas catalytic converter (), comprising controlling an ignition device () of the exhaust gas burner () during a predeterminable preheating phase without supplying fuel () to the exhaust gas burner () during the preheating phase and, after completion of the preheating phase, supplying fuel () to the exhaust gas burner () and burning the supplied fuel () in the exhaust gas burner (). A processor unit and a computer program product for carrying out such a method are furthermore proposed. 1314123113113113. A method for operating an exhaust gas burner () downstream of an internal combustion engine () and upstream of an exhaust gas catalytic converter () , the method comprising: controlling an ignition device () of the exhaust gas burner () during a predeterminable preheating phase without supplying fuel () to the exhaust gas burner () during the preheating phase , and after completion of the preheating phase , supplying fuel () to the exhaust gas burner () and burning the supplied fuel () in the exhaust gas burner ().2161715. The method according to claim 1 , further comprising determining a start and/or a duration ( claim 1 , ) of the preheating phase as a function of input signals () claim 1 , which comprise one or more of the group consisting of a temperature claim 1 , a locking state of a vehicle door claim 1 , a seat occupancy state claim 1 , a belt buckle state and a start request.31617. The method according to claim 1 , wherein the duration ( claim 1 , ) of the preheating phase is selected from a range between 0.2 s and 10 s.412. The method according to claim 1 , wherein the ignition device () generates a spark with a length in a range between 0.5 mm and 2.5 mm.53311. The method according to claim 1 , wherein a power of the exhaust gas burner () is increased to a rated power of the exhaust gas burner () within less than 5 s after the start of ...

Burner With Air-Assisted Fuel Nozzle And Vaporizing Ignition System

An exhaust aftertreatment system includes a burner in heat transfer relation with exhaust gas in an exhaust gas passageway. The burner includes a housing assembly and a nozzle assembly, the housing assembly at least partially defining a combustion chamber. The nozzle assembly is at least partially received in the housing assembly and includes a nozzle body and an electric heating element. The heating element is disposed within the nozzle body and operable to heat fuel flowing through the nozzle body. A control module is in communication with the heating element and controls the heating element in a first mode in which the heating element heats fuel for combustion in the combustion chamber, and a second mode in which the heating element burns deposits off of the nozzle body when fuel is not supplied to the nozzle body.

METHOD FOR OPERATING A DRIVE DEVICE AND CORRESPONDING DRIVE DEVICE

A method for operating a drive device having an internal combustion engine and an exhaust gas purification device for exhaust gas of the internal combustion engine includes performing an oxygen removal operation for removing oxygen from the exhaust gas purification device, wherein the oxygen removal operation includes at least one of operating the internal combustion engine sub-stoichiometrically and introducing additional fuel into the exhaust gas, wherein the oxygen removal operation is performed until a lambda value detected by a lambda probe arranged in the exhaust gas purification device reaches a defined lambda threshold value. 1. A method for operating a drive device having an internal combustion engine and an exhaust gas purification device for exhaust gas of the internal combustion engine , said method comprising performing an oxygen removal operation for removing oxygen from the exhaust gas purification device , said oxygen removal operation comprising at least one of operating the internal combustion engine sub-stoichiometrically and introducing additional fuel into the exhaust gas , wherein the oxygen removal operation is performed until a lambda value detected by a lambda probe arranged in the exhaust gas purification device reaches a defined lambda threshold value.2. The method of claim 1 , wherein the lambda probe is arranged at a position in the exhaust gas purification device which corresponds to at least 30% claim 1 , at least 40% claim 1 , at least 50% claim 1 , at least 60% claim 1 , at least 70% claim 1 , at least 80% or at least 90% of a total flow through length of the exhaust gas purification device3. The method of claim 1 , further comprising during the oxygen removal operation detecting a total fuel amount introduced into the internal combustion engine and terminating the oxygen removal operation when the total fuel amount exceeds a total fuel amount threshold value.4. The method of claim 3 , further comprising defining the total fuel ...

APPARATUS AND METHOD OF OPERATING AN INJECTOR FOR AN EXHAUST GAS AFTERTREATMENT APPARATUS

A method for operating an exhaust aftertreatment system injector to prevent coking includes steps of injecting fuel for heating the aftertreatment devices, when not injecting fuel, flowing air to purge and cool the nozzle to prevent carbon deposits when exhaust gas temperature is low, and substantially stop air flow to allow passive heating of the nozzle by the exhaust for oxidation of any accumulated carbon when exhaust temperature is high enough to support oxidation. Preferably, the nozzle has a catalytic material coating to reduce the temperature necessary for oxidation of the coking material. 1. A method of operating an injector for an exhaust gas aftertreatment apparatus to avoid coke deposits , the injector nozzle having a catalyst coating , the method comprising the steps of:selectively injecting a hydrocarbon fluid into an exhaust gas flow to increase the temperature of the exhaust flow;when not injecting hydrocarbon, causing air to flow through the injector nozzle when an exhaust gas temperature is below a threshold temperature; and,when not injecting hydrocarbon, substantially stopping the flow of air through the injector nozzle when the exhaust gas temperature is above the threshold temperature.2. The method as in claim 1 , further comprising:monitoring a condition of the aftertreatment apparatus;monitoring an exhaust gas temperature; and,responsive to the condition of the aftertreatment apparatus and responsive to the exhaust gas temperature, controlling the injection of hydrocarbon in the exhaust gas flow.3. The method as in claim 1 , comprising the step of causing air to flow through the injector immediately following injecting hydrocarbon to purge residual hydrocarbon from the injector.4. The method as in claim 1 , wherein the flow of air through the injector nozzle when the exhaust gas temperature is above the threshold temperature is substantially stopped until the exhaust gas temperature is below the threshold temperature.5. The method as in claim ...

Burner

A burner includes a tubular inner tube portion and a tubular outer tube portion. The inner tube portion mixes fuel with air. The outer tube portion surrounds the inner tube portion. A peripheral wall of the inner tube portion has a gaseous mixture outflow hole. The gaseous mixture outflow hole causes a clearance between an inner peripheral surface of the outer tube portion and an outer peripheral surface of the inner tube portion to communicate with an interior of the inner tube portion. A peripheral wall of the outer tube portion has an air supplying hole. The air supplying hole further supplies air to the clearance.

EXHAUST TREATMENT APPARATUS FOR ENGINE

An engine exhaust treatment apparatus, which suppresses thermal damage to an electrothermal ignition apparatus, includes: an exhaust passage; an oxidation catalyst disposed in the exhaust passage; a combustible gas generator; a combustible gas supplying passage; a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part of the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; and an electrothermal ignition apparatus disposed in the combustible gas supplying passage. Heat of flaming combustion of the combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise the temperature of exhaust in the exhaust passage. A heat dissipation plate is attached to an outer projecting portion of the electrothermal ignition apparatus. The outer projecting portion projects outside a wall of the exhaust treatment apparatus. 1. An exhaust treatment apparatus for an engine comprising:an exhaust passage;an oxidation catalyst disposed in the exhaust passage;a combustible gas generator;a combustible gas supplying passage;a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; andan electrothermal ignition apparatus disposed in the combustible gas supplying passage, wherein heat of flaming combustion of combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise a temperature of exhaust in the exhaust passage,the exhaust treatment apparatus for an engine further comprising:a heat dissipation plate attached to an outer projecting portion of the electrothermal ignition apparatus, the outer projecting ...

Exhaust Purification Device Capable of Performing Regeneration by Using Quick Combustion

An exhaust purification device for vehicles comprises a connection unit, a combustion unit, a buffer unit, a filtration unit, an emission unit, and a control unit. The connection unit is adapted to be connected to an exhaust pipe of a vehicle's engine. The combustion unit includes a main housing, a fuel-atomization nozzle, and an igniter. The nozzle and the igniter are arranged in an open-end container. The nozzle is connected to a fuel tank. An air pump is connected to the open-end container. The buffer unit is provided with a temperature sensor, an exhaust-buffering mask, and a fan. The filtration unit can remove the soot contained in the exhaust gas. The emission unit includes an L-shaped porous tail pipe being sealed with a porous cover. The control unit is electrically connected with the igniter, the fuel pump, the air pump, and the temperature sensor for controlling their operations. 1. An exhaust purification device for vehicles , comprising:a connection unit including an inlet and an outlet, the inlet adapted to be connected to an exhaust pipe of a vehicle's engine;a combustion unit including a main housing, a fuel-atomization nozzle, and an igniter, wherein the main housing is connected to the outlet of the connection unit, the main housing defining a combustion chamber therein and being provided therein with a protective shell and an open-end container at a location that is not aligned with the outlet of the connection unit, the open-end container being located within the protective shell and leaving a gap with the protective shell, the fuel-atomization nozzle and the igniter being arranged in the open-end container and facing towards the combustion chamber, the fuel-atomization nozzle being connected to a fuel tank containing a fuel pump via a tube being provided with an electrical valve, an air pump being connected to the open-end container,a buffer unit including a first buffer zone and a second buffer zone communicating with the first buffer zone, ...

INTERNAL COMBUSTION ENGINE FOR REDUCING EXHAUST GAS EMISSIONS

An internal combustion engine is provided, which includes at least one combustion chamber, and a turbocharger with an exhaust gas turbine and an exhaust gas after-treatment device. The exhaust gas after-treatment device has a first catalytic converter arranged aerodynamically between the at least one combustion chamber and the exhaust gas turbine. A second catalytic converter is arranged aerodynamically between the first catalytic converter and the exhaust gas turbine, and at least one partial oxidation chamber is arranged aerodynamically between the first catalytic converter and the second catalytic converter. Also provided is a method for reducing exhaust gas emissions of an internal combustion engine. 1. An internal combustion engine comprising:at least one combustion chamber;a turbocharger with an exhaust gas turbine and an exhaust gas after-treatment device, the exhaust gas after-treatment device having a first catalytic converter arranged aerodynamically between the at least one combustion chamber and the exhaust gas turbine;a second catalytic converter arranged aerodynamically between the first catalytic converter and the exhaust gas turbine; andat least one partial oxidation chamber arranged aerodynamically between the first catalytic converter and the second catalytic converter.2. The internal combustion engine according to claim 1 , wherein the at least one partial oxidation chamber has at least two piping sections claim 1 , wherein one of the at least two piping sections is arranged at least partially within the other of the at least two piping sections claim 1 , and the at least two piping sections are connected aerodynamically in series.3. The internal combustion engine according to claim 1 , wherein the at least one partial oxidation chamber has at least one helical curved tube.4. The internal combustion engine according to claim 3 , wherein the at least one partial oxidation chamber has multiple helical curved tubes.5. The internal combustion engine ...

APPARATUS FOR PRODUCING AMMONIA

The invention relates to a device for generating ammonia from an ammonia precursor solution, having a reaction space with an inflow connector through which an exhaust-gas flow can flow into the reaction space, having an outflow connector through which an ammonia-containing gas flow can exit the reaction space, and having a supply device by way of which selectively an ammonia precursor solution or a fuel can be supplied into the reaction space. 1. A device for generating ammonia from an ammonia precursor solution , comprising: a reaction space with an inflow connector through which an exhaust-gas flow can flow into the reaction space , an outflow connector through which an ammonia-containing gas flow can exit the reaction space , and a supply device configured to selectively supply an ammonia precursor solution or a fuel into the reaction space.2. The device as claimed in claim 1 , wherein the supply device comprises a dosing valve which includes a first feed line for ammonia precursor solution and a second feed line for a fuel.3. The device as claimed in claim 1 , wherein claim 1 , in the reaction space claim 1 , there is arranged an impingement structure toward which the supply device is oriented and which is impinged on by the supplied ammonia precursor solution.4. The device as claimed in claim 3 , wherein the impingement structure is provided with a coating which catalyzes both a hydrolysis of ammonia precursor solution into ammonia and an exothermic reaction of fuel with oxygen.5. The device as claimed in claim 1 , wherein the supply device comprises a common nozzle configured to spray ammonia precursor solution and fuel into the reaction space claim 1 , wherein the nozzle generates different spray patterns with ammonia precursor solution and with fuel.6. The device as claimed in claim 1 , wherein different impingement regions for ammonia precursor solution and for fuel are provided within the reaction space.7. The device as claimed in claim 1 , wherein an ...

OPERATION CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINE

An operation control apparatus for an internal combustion engine includes: an exhaust emission purifier; a fuel supplying valve for supplying fuel to an exhaust passage; ignition means for igniting the fuel supplied; a warm up determining section for determining whether or not the purifier need be warmed; an exhaust heating determining section for determining whether or not the engine is in an operational state in which the fuel should be ignited and burned; an exhaust heating predicting section for predicting the transition from the operational state in which the fuel should not be ignited and burned to an operational state in which the fuel should be ignited and burned; and a heat generation temperature setting section for setting the temperature of a heating portion of the ignition means based on the result by the heating determining section and the predicting section. 1. An operation control apparatus for an internal combustion engine comprising:an exhaust emission purifier for purifying exhaust gas from an internal combustion engine;a fuel supplying valve for supplying fuel to an exhaust passage extending from the internal combustion engine to the exhaust emission purifier;ignition means for igniting the fuel supplied to the exhaust passage by the fuel supplying valve, the ignition means having a heating portion;a warm up determining section for determining whether or not the exhaust emission purifier need be warmed by the fuel supplying valve and the ignition means;an exhaust heating determining section for determining whether or not the engine is in an operational state in which the fuel should be supplied to the exhaust passage by the fuel supplying valve and the fuel should be ignited and burned by the ignition means in a case where the warm up determining section determines that the exhaust emission purifier need be warmed;an exhaust heating predicting section for predicting the transition from the operational state in which the fuel is supplied to the ...

LOW TEMPERATURE CATALYST LIGHT-OFF

A catalyst associated with an internal combustion engine can be heated to improve emissions performance of the engine. Hydrogen can be generated within the internal combustion engine by combusting a first combustion mixture having a first air-fuel ratio including excess fuel relative to a stoichiometric air-fuel ratio, such that a reforming reaction occurs during the combusting of the first combustion mixture. A second combustion mixture having a second air-fuel ratio including excess oxygen can be combusted within the internal combustion engine such that oxygen remains in second exhaust gases after the combusting of the second combustion mixture. The first exhaust gases and the second exhaust gases can be delivered to the catalyst and the catalyst is heated by reacting at least some of the hydrogen and at least some of the oxygen at the catalyst. Internal combustion engines, systems, vehicles engine management systems, and method are disclosed. 1. A method for heating a catalyst associated with an internal combustion engine , comprising:generating hydrogen within the internal combustion engine, the generating of the hydrogen comprising combusting a first combustion mixture having a first air-fuel ratio, the first air-fuel ratio comprising an excess of fuel relative to a stoichiometric air-fuel ratio such that a reforming reaction occurs during the combusting of the first combustion mixture to generate the hydrogen in first exhaust gases;combusting a second combustion mixture having a second air-fuel ratio within the internal combustion engine, the second air-fuel ratio comprising an excess of oxygen relative to the stoichiometric air-fuel ratio such that oxygen remains in second exhaust gases after the combusting of the second combustion mixture;delivering the first exhaust gases and the second exhaust gases to the catalyst; andheating the catalyst by reacting at least some of the hydrogen and at least some of the oxygen at the catalyst.2. The method of claim 1 , ...

FUEL ADDITION SYSTEM

The fuel addition system comprises: a fuel addition valve, a fuel tank, a first pressure storage chamber storing fuel to be supplied to a fuel injector, a supply pump increasing a pressure of fuel inside the fuel tank and supplying the fuel to the first pressure storage chamber, a pressure reduction valve discharging fuel stored in the first pressure storage chamber, a pressure reduction fuel passage supplying fuel discharged from the first pressure storage chamber to the fuel addition valve, and a control device controlling the fuel addition valve and the pressure reduction valve. The control device detects or estimates a temperature of fuel supplied to the fuel addition valve and, when injecting fuel from the fuel addition valve, controls an amount of fuel discharged from the first pressure storage chamber through the pressure reduction valve so that the temperature of the fuel becomes a reference temperature or more. 2. The fuel addition system according to claim 1 , wherein the control device is configured to increase the amount of the fuel if the temperature of the fuel is lower than the reference temperature compared to if the temperature of the fuel is the reference temperature or more.3. The fuel addition system according to claim 1 , further comprising a second pressure storage chamber arranged in the pressure reduction fuel passage and storing fuel to be supplied to the fuel addition valve.4. The fuel addition system according to claim 2 , further comprising a second pressure storage chamber arranged in the pressure reduction fuel passage and storing fuel to be supplied to the fuel addition valve.5. The fuel addition system according to claim 1 , further comprising a feed pump supplying fuel inside the fuel tank to the fuel addition valve.6. The fuel addition system according to claim 2 , further comprising a feed pump supplying fuel inside the fuel tank to the fuel addition valve.7. The fuel addition system according to claim 5 , wherein the control ...

METHOD AND DEVICE FOR EXHAUST GAS AFTERTREATMENT IN AN INTERNAL COMBUSTION ENGINE

A device for exhaust gas aftertreatment in an internal combustion engine can be connected to an outlet of the internal combustion engine. The device comprises an exhaust gas system with an exhaust gas channel in which a three-way catalytic converter is arranged, and an exhaust gas burner with which hot burner exhaust gases can be fed into the exhaust gas channel at a feed point upstream from the three-way catalytic converter. The three-way catalytic converter is configured as a lambda probe catalytic converter and comprises a first catalyst volume and a second catalyst volume, whereby a lambda probe is arranged downstream from the first catalyst volume and upstream from the second catalyst volume, whereby the first catalyst volume has a lower oxygen storage capacity than the second catalyst volume. A method for exhaust gas aftertreatment in an internal combustion engine has such an exhaust gas aftertreatment device. 1. A device for exhaust gas aftertreatment in an internal combustion engine , which device can be connected to an outlet of the internal combustion engine , comprising:an exhaust gas system with an exhaust gas channel in which a three-way catalytic converter is arranged, andan exhaust gas burner,a feed point for burner exhaust gases from the exhaust gas burner, on the exhaust gas channel upstream from the three-way catalytic converter,wherein the three-way catalytic converter is configured as a lambda probe catalytic converter, anda lambda probe arranged downstream from a first catalyst volume of the three-way catalytic converter and upstream from a second catalyst volume of the three-way catalytic converter, whereby the first catalyst volume has a lower oxygen storage capacity than the second catalyst volume.2. The device for exhaust gas aftertreatment according to claim 1 , wherein the first catalyst volume makes up 15% to 35% of the total volume of the three-way catalytic converter claim 1 , and the second catalyst volume makes up 65% to 85% of the ...

Exhaust Gas Purification Apparatus for Internal Combustion Engine

The exhaust gas purification apparatus for an internal combustion engine that includes an oxidation catalyst and a selective catalytic reduction catalyst provided for an exhaust gas passage and has the improved entire NOx purification rate. A control unit, which controls a fuel supply amount to the oxidation catalyst, executes first control of controlling the fuel supply amount by the fuel supply unit so that NOx is reduced by the oxidation catalyst when the selective catalytic reduction catalyst is in an inactive state and the temperature of the oxidation catalyst belongs to a predetermined temperature range equal to or higher than the active temperature of the oxidation catalyst, and second control of controlling the fuel supply amount by the fuel supply unit so that the temperature of the exhaust gas flowing into the selective catalytic reduction catalyst is raised by oxidation of the fuel in the oxidation catalyst irrespective of a NOx purification rate of the selective catalytic reduction catalyst when the selective catalytic reduction catalyst is in the inactive state and the temperature of the oxidation catalyst exceeds the predetermined temperature range. 1. An exhaust gas purification apparatus for an internal combustion engine , comprising:an oxidation catalyst that is provided in an exhaust gas passage of the internal combustion engine and has an oxidation ability, the oxidation catalyst reducing NOx contained in an exhaust gas by using fuel supplied by the aid of the exhaust gas as a reducing agent when a catalyst temperature belongs to a predetermined temperature range equal to or higher than an active temperature thereof;a fuel supply unit that supplies the fuel to the oxidation catalyst by the aid of the exhaust gas flowing into the oxidation catalyst;a selective catalytic reduction catalyst that is provided in the exhaust gas passage on a downstream side of the oxidation catalyst and reduces NOx contained in the exhaust gas by using ammonia as a ...

OPERATION CONTROL APPARATUS AND METHOD FOR INTERNAL COMBUSTION ENGINE (AS AMENDED)

There is provided an operation control method for an internal combustion engine, in which if an exhaust gas purifier needs to be warmed, a second glow plug is heated in an exhaust passage upstream of the purifier to a fuel ignition temperature or higher while fuel supplied to the exhaust passage is ignited and burned. In this method, if it is determined that the purifier and an engine need to be warmed, a first glow plug disposed in a combustion chamber is first heated to a predetermined temperature prior to the warm-up of the purifier to start the warm-up of the engine, and then the second glow plug begins to be heated when the temperature of the purifier is equal to or higher than a glow plug energization starting temperature which is lower than a warm-up start determination temperature of the purifier. 1. An operation control apparatus for an internal combustion engine , the apparatus comprising:a fuel injection valve for injecting fuel into a combustion chamber of a compression ignition type internal combustion engine;a first glow plug disposed in the combustion chamber of the internal combustion engine to expedite ignition and burning of the fuel injected into the combustion chamber from the fuel injection valve;an engine warm-up parameter acquisition means for acquiring a parameter associated with whether the internal combustion engine needs to be warmed;an engine warm-up determination means for determining whether the internal combustion engine needs to be warmed by comparing the parameter acquired by the engine warm-up parameter acquisition means and a preset engine warm-up determination parameter;an exhaust gas purifier disposed in an exhaust passage into which exhaust gas from the internal combustion engine is introduced;a fuel supply valve for supplying fuel to the exhaust passage upstream of the exhaust gas purifier;a second glow plug disposed in the exhaust passage downstream of the fuel supply valve to cause the fuel supplied from the fuel supply valve ...

METHOD FOR OPERATING A MOTOR VEHICLE

In a method for operating a motor vehicle having an internal combustion engine, pre-heating measures () for reaching operating temperatures for components of the exhaust-gas post-treatment system and/or for a lambda probe of the motor vehicle are provided prior to the departure () of the motor vehicle. The activation of a transducer () by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as the trigger for the pre-heating measures (), in particular for avoiding an unnecessary initiation of pre-heating measures. 171017. A method for operating a motor vehicle having an internal combustion engine , wherein pre-heating measures () for reaching operating temperatures for components of the exhaust-gas post-treatment system , for a lambda probe of the motor vehicle , or both are performed prior to the departure () of the motor vehicle , wherein the activation of a transducer () by a driver of the motor vehicle for explicitly announcing an impending departure of the motor vehicle is provided as the trigger of the pre-heating measures ().27. The method according to claim 1 , wherein claim 1 , in the event of a requested departure of the motor vehicle without any prior activation of the transducer by the driver claim 1 , the departure of the motor vehicle claim 1 , the engine start claim 1 , or both are delayed and pre-heating measures () are performed.3106. The method according to claim 2 , wherein a warning signal is generated as an indication of the delay ().4. The method according to claim 1 , wherein the transducer is activatable by way of an activation element on an operating installation for a vehicle access control unit.5. The method according to claim 1 , wherein the transducer is activatable by way of a mobile apparatus having computer features.6. The method according to claim 1 , wherein the state of the electric energy available in the motor vehicle is incorporated as a further criterion for the ...

INCREASED EXHAUST TEMPERATURE WARM-UP FOR A RAPID LIGHT-OFF OF A CLOSE-COUPLED DIESEL OXIDATION CATALYST

A method is provided for generating rapid light-off for a diesel oxidation catalyst (DOC) close-coupled to a compression-ignition engine. The engine includes an intake passage in fluid communication with a combustion chamber, a throttle for controlling a flow of intake air through the intake passage, and an exhaust passage configured to channel an exhaust gas from the combustion chamber to the DOC. The method includes starting the engine to commence a warm-up thereof and regulating the throttle to restrict supply of the intake airflow to the combustion chamber. The method additionally includes injecting a predetermined amount of fuel into the combustion chamber during the engine's exhaust cycle such that the injected fuel is carried by the exhaust gas and burned in the exhaust passage. Regulating the throttle and injecting fuel during the warm-up of the engine together increase temperature of the exhaust gas for rapid light-off of the close-coupled DOC.

EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE

Provided is an exhaust gas purification device provided with a cover which can reduce radiated noise at low cost without impairing the heat shield function of the cover. Provided is an exhaust gas purification device comprising: an exhaust gas purification device body provided to the exhaust pipe of a diesel engine and purifying exhaust gas; and a substantially rectangular cover provided so as to cover at least a part of the exhaust gas purification device body and blocking heat radiated from the exhaust gas purification device body. The cover is provided with a plurality of protruding ribs formed on the surface thereof. The ribs comprise: radial ribs formed extending radially from a center section centered at the intersection of the diagonals of the cover; and a circumferential rib formed continuously along the entire circumference of a circle centered at the intersection. 1. An exhaust gas purification device for an internal combustion engine , the device comprising:an exhaust gas purification device main body that is provided in an exhaust channel of the internal combustion engine, and purifies exhaust gas of the internal combustion engine; anda cover of substantially tetragonal shape that is provided so as to cover at least part of the exhaust gas purification device main body, and shields radiated heat from the exhaust gas purification device main body,wherein the cover has a plurality of convex ribs formed on the surface thereof, andwherein the ribs include a radial rib formed radially from a central part with a point of intersection of diagonal lines of the cover as the center, and a circumferential rib formed continuously over the entire circumference of a circle with the point of intersection as the center.2. The exhaust gas purification device for an internal combustion engine according to claim 1 ,wherein a turbine of a turbocharger that compresses intake air using energy of exhaust gas is provided in the exhaust channel, andwherein the exhaust gas ...

Chemical heat storage device

A chemical heat storage device includes a reactor disposed around an oxidizing catalyst and containing MgCl 2 which chemically reacts with NH 3 to generate heat, a storage connected to the reactor through a pipe to store NH 3 , an on-off valve disposed in the pipe, a temperature sensor detecting the temperature of the exhaust gas passing through the oxidizing catalyst, and a controller controlling the on-off valve based on the detected value of the temperature sensor. The controller controls the on-off valve such that the on-off valve unconditionally opens if the temperature of the exhaust gas is greater than a heat generating start temperature T L and is equal to or less than a heat generating end guide temperature T Q , and the on-off valve unconditionally opens if the temperature of the exhaust gas is greater than a regenerating temperature T H .

EXHAUST COMPONENT WITH A HELICAL HEATER

An exhaust component assembly includes a housing defining an internal passage for engine exhaust gas, at least one exhaust gas aftertreatment component within the internal passage, and at least one heater to heat the engine exhaust gas. The heater comprises a helical-shaped element with a surface that spirals about an axis for a predetermined length. 1. An exhaust component assembly , comprising:a housing defining an internal passage for engine exhaust gas;at least one exhaust gas aftertreatment component within the internal passage; andat least one heater to heat the engine exhaust gas, wherein the heater comprises a helical-shaped element with a surface that spirals about an axis for a predetermined length.2. The exhaust component assembly according to wherein the surface includes a plurality of openings claim 1 , and/or comprises a mesh or porous material.3. The exhaust component assembly according to wherein the helical-shaped element has an outermost dimension defined by an outer edge of the surface claim 1 , and wherein the predetermined length is greater than the outermost dimension.4. The exhaust component assembly according to wherein the at least one heater further includes a center body portion extending along the axis claim 1 , and wherein the surface spirals about the center body portion.5. The exhaust component assembly according to including electrodes connected to opposing ends of the center body portion claim 4 , wherein the electrodes are connected to a power source and control module.6. The exhaust component assembly according to wherein the housing comprises a main housing and including a return housing in parallel with the main housing claim 1 , wherein the at least one heater is positioned within the return housing claim 1 , and wherein exhaust gas exiting a downstream end of the at least one exhaust gas aftertreatment component is directed into the return housing claim 1 , passes through the helical-shaped element claim 1 , and is directed ...

Device for heating a pollutant catalyst

Bei einer Vorrichtung zum schnellen Aufheizen eines Schadstoff-Katalysators (15) in einem Kraftfahrzeug mit Brennkraftmaschine (10) und Kraftstofftank (27) wird zwecks unmittelbarer und schneller Aufheizung des Katalysators (15) ohne Kraftstoffverbrauch während Katalysator-Heizphasen Luft durch Verbrennen von aus dem Kraftstoffvorrat (40) im Kraftstofftank (27) verflüchtigten Kraftstoffbestandteilen erhitzt und durch den Katalysator (15) geleitet (Fig. 1). In a device for quickly heating a pollutant catalyst (15) in a motor vehicle with an internal combustion engine (10) and a fuel tank (27), for the purpose of immediate and rapid heating of the catalyst (15) without fuel consumption during catalyst heating phases, air is burned from the fuel supply (40) in the fuel tank (27) volatilized fuel components and passed through the catalyst (15) (Fig. 1).

Catalytic afterburner for internal combustion engines and the like

Exhaust control apparatus

内燃機関の排ガス中の黒煙除去方法及び装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

The Exhaust gas purifying device of internal-combustion engine

本发明要解决的问题在于，在下述的内燃机的排气净化装置中适当地去除附着或堆积在混合器上的源自还原剂的固形物，其中所述内燃机的排气净化装置包括：选择还原型催化剂，所述选择还原型催化剂被配置在内燃机的排气通路中；还原剂提供装置，所述还原剂提供装置向比选择还原型催化剂靠上游的排气通路提供源自氨的还原剂；以及混合器，所述混合器配置在比选择还原型催化剂靠上游且比还原剂提供装置靠下游的排气通路中。为了解决该问题，本发明在比所述混合器靠上游的排气通路中设置向所述混合器喷射火焰的升温装置。

CATALYST COMPOSITIONS USED FOR THE OXIDATION OF CARBON MONOXIDE AND HYDROCARBONS, IN PARTICULAR FROM COMBUSTION ENGINE EXHAUST GAS

Apparatus for removing carbon particles from exhaust gas from internal combustion engine

Apparatus for removing black fumes from exhaust gas from an internal combustion engine includes a filter mounted on an exhaust pipe of the engine. The filter includes a body defining a filter chamber and a filter element mounted within the filter chamber for collecting carbon particles constituting the black fume. A solution dispersing device is provided for dispersing a solution of catalyst to the exhaust gas in the filter chamber at a position upstream of the filter element to cause the oxidation of the carbon particles collected in the filter element to remove them therefrom. There is also disclosed a method of removing black fume from exhaust gas from the internal combustion engine.

Exhaust gas filter device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Mixing Apparatus for Exhaust gas and Frame

PURPOSE: An exhaust gas and flame mixing apparatus for a DPF(Diesel Particulate Filter) system is provided to raise the temperature of exhaust gas instantaneously by letting the exhaust gas whirl about flame. CONSTITUTION: An exhaust gas and flame mixing apparatus(100) for a DPF system comprises a body(110), a supporting plate(120), an inlet pipe(130), an inner pipe(140), and a fixing plate(150). In the body, an internal cavity is formed. The supporting plate is connected one end of the body on one side, and has a flame inlet through which the flame generated by a burner device flows in. The inlet pipe is connected to the side surface of the body so that the exhaust gas flows into the internal cavity of the body. The inner pipe is inserted and arranged in the internal cavity of the body. In the central part of the fixing plate, a fixing ring supporting the exterior of the inner pipe is formed. On the periphery of the inner pipe, plural flame ports are formed to discharge a part of the flame out of the inner pipe.

Catalyzer heater for catalyzer convertor

(PROCESS FOR CONTROLLING THE FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE WITH HEATABLE CATALYST)

촉매장치를 갖는 내연기관(10)에서 연료공급을 제어하기 위한 방법에 있어서, 상기 엔진의 공기량흐름의 함수인 제2공기분사 동안에 상기 버너(25)가 작동되고, 상기 촉매장치를 가열시키기 위하여 추가적인 연료량과 추가적인 제2공기량의 분사가 상기 배출장치내로 분사되는 것을 특징으로 한다.

Burner for regeneration of diesel particulate filter

본 발명에 따르면, 액체 상태의 연료를 기화시키는 기화실과 기화된 연료를 연소시키는 연소실이 구비된 몸체와; 상기 몸체 기화실의 일단과 결합되며 액체연료를 미립화하여 상기 몸체의 기화실로 분사하는 연료공급기와; 상기 몸체의 기화실과 연통되어 상기 기화실에서 기화된 연료 및 공기의 혼합기체를 높은 내압으로 상기 연소실로 분사하는 버너헤드; 및 상기 버너헤드에서 분사되는 혼합기체를 점화하는 점화기;를 포함하는 DPF 재생용 버너를 개시한다. According to the present invention, a body having a vaporization chamber for vaporizing a liquid fuel and a combustion chamber for burning the vaporized fuel; A fuel supply unit coupled to one end of the body vaporization chamber and atomizing liquid fuel to inject into the vaporization chamber of the body; A burner head in communication with the vaporization chamber of the body and injecting a mixture gas of fuel and air vaporized in the vaporization chamber into the combustion chamber at a high internal pressure; And an igniter for igniting the mixed gas injected from the burner head. 개시된 본 발명에 의하면, 연소기의 내압 및 연료분출 속도를 증대시켜 화염의 역류를 방지하며, 예혼합 화염과 확산 화염의 복합적인 화염 구조를 통해 차량의 운전 조건 변화에 대응하여 최적의 화염 안정화 달성은 물론이고, 차량의 배기상태의 변화에 따라 확산화염과 예혼합 화염의 복합적 또는 각각 독립적인 화염 구조의 상태를 달성할 수 있다. According to the disclosed invention, it is possible to prevent flame backflow by increasing the internal pressure of the combustor and the fuel ejection speed, and to achieve optimal flame stabilization in response to changes in driving conditions of the vehicle through a complex flame structure of a premixed flame and a diffuse flame. Of course, it is possible to achieve a state of a complex or independent flame structure of the diffusion flame and the premixed flame according to the change of the exhaust state of the vehicle. 또한, 버너의 점화 후 연료의 기화에 화염을 직접 이용하는 것이 가능하기 때문에, 연료 기화용 에너지인 히터 전력을 최소화할 수 있어 차량에서의 전력 한계를 극복할 수 있는 장점이 있다. In addition, since it is possible to directly use the flame to vaporize the fuel after ignition of the burner, it is possible to minimize the heater power which is the energy for fuel vaporization, there is an advantage to overcome the power limitation in the vehicle. DPF 재생용 버너, 디젤엔진매연여과장치, DPF 시스템 DPF regeneration burner, ...

Method of denitrification of exhaust gas and apparatus therefor

저온의 배 가스 중의 질소산화물을, 높은 탈초율로 제거하는 배 가스의 탈초방법 및 그 장치를 제공한다. Provided are a method for denitration of flue gas for removing nitrogen oxides in low temperature flue gas at a high denitrification rate, and an apparatus thereof. 배 가스(x)의 연도(10) 중에 취입관(11)을 내벽으로부터 돌출하게 마련하고, 취입관(11)으로부터 탄화수소화합물(b) 및 질소화합물(a)을 연도(10) 중에 공급하며, 탄화수소화합물(b)을 연소시켜 연소영역(s)을 형성하고, 연소영역(s)에 있어서 질소화합물(a)로부터 아민 래디컬을 생성하여, 이 아민 래디컬과 배 가스(x) 중의 질소산화물을 혼합하여 질소산하물을 환원적으로 탈초 처리한다. In the flue 10 of the exhaust gas (x), the blowing pipe (11) is provided to protrude from the inner wall, and the hydrocarbon compound (b) and the nitrogen compound (a) are supplied from the blowing pipe (11) in the flue (10), The hydrocarbon compound (b) is combusted to form a combustion zone (s), and in the combustion zone (s), an amine radical is generated from the nitrogen compound (a), and the amine radical and the nitrogen oxide in the exhaust gas (x) are mixed. The denitrification is carried out reductively by nitrogen reduction. 배 가스 탈초 Boat gas denitrification

Method of operating an internal combustion engine

내연기관의 적어도 하나의 실린더 내에서의 점화를 상기 실린더의 연소 사이클에서 상사점 이후(ATDC)로 지연시키는 것을 포함하는 내연기관 작동 방법에 관한 것이다. 점화간 지연되는 동안 상기 실린더의 연료공급율은 엔진의 정상 작동시 요구되는 수준 이상으로 증가된다.

Catalytic converter decontamination method

A method for restoring exhaust purifying capability of a sulfur contaminated catalytic converter of an internal combustion engine. Catalytic converter efficiency is measured with a first exhaust gas oxygen sensor positioned upstream of the catalytic converter and a second exhaust gas oxygen sensor positioned downstream of the catalytic converter. When catalytic converter efficiency falls below a desired level, catalytic converter temperature is elevated and the engine is operated to produce a rich exhaust gas mixture to reduce the sulfur contamination. Then, to further reduce the sulfur contamination, the engine is operated to produce a lean exhaust mixture.

Method to control operation of catalyst converter of internal combustion engine, control element for internal combustion engine control unit, unit to control internal combustion engine, and internal combustion engine, and internal combustion engine

Изобретение относится к двигателестроению и может быть использовано в системах очистки выхлопных газов двигателей транспортных средств. Двигатель внутреннего сгорания, прежде всего транспортного средства, оснащен каталитическим нейтрализатором, который способен накапливать и высвобождать оксиды азота. При этом предусмотрен также датчик NO x , позволяющий измерять количество выбрасываемых NO x за указанным каталитическим нейтрализатором. Такой двигатель оснащен также блоком управления, который выполнен с возможностью обеспечивать накопление оксидов азота в каталитическом нейтрализаторе только до степени, не достигающей полного его насыщения оксидами азота. Помимо этого блок управления позволяет также создавать перед каталитическим нейтрализатором или в нем самом повышенное количество выбрасываемых NO x . Кроме того, блок управления позволяет сделать вывод об исправности каталитического нейтрализатора на основании измеряемого затем количества выбрасываемых NO x . Изобретение позволяет распознать неисправность нейтрализатора. 4 н.и 5 з.п. ф-лы, 3 ил. ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2 261 340 (13) C2 F 01 N 9/00 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2001126129/06, 22.12.2000 (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 22.12.2000 (30) Ïðèîðèòåò: 31.12.1999 DE 19963901.9 (43) Äàòà ïóáëèêàöèè çà âêè: 27.05.2003 (45) Îïóáëèêîâàíî: 27.09.2005 Áþë. ¹ 27 (73) Ïàòåíòîîáëàäàòåëü(ëè): ÐÎÁÅÐÒ ÁÎØ ÃÌÁÕ (DE) (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 01.10.2001 2 2 6 1 3 4 0 R U (87) Ïóáëèêàöè PCT: WO 01/49995 (12.07.2001) C 2 C 2 (86) Çà âêà PCT: DE 00/04615 (22.12.2000) Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., ä.10, êâ.15, "ÅÂÐÎÌÀÐÊÏÀÒ", È.À.Âåñåëèöêîé (54) ÑÏÎÑÎÁ ÓÏÐÀÂËÅÍÈß ÐÀÁÎÒÎÉ ÊÀÒÀËÈÒÈ×ÅÑÊÎÃÎ ÍÅÉÒÐÀËÈÇÀÒÎÐÀ ÄÂÈÃÀÒÅËß ÂÍÓÒÐÅÍÍÅÃÎ ÑÃÎÐÀÍÈß, ÝËÅÌÅÍÒ ÓÏÐÀÂËÅÍÈß ÄËß ÁËÎÊÀ ÓÏÐÀÂËÅÍÈß ÄÂÈÃÀÒÅËÅÌ ÂÍÓÒÐÅÍÍÅÃÎ ÑÃÎÐÀÍÈß, ÁËÎÊ ÓÏÐÀÂËÅÍÈß ÄËß ÄÂÈÃÀÒÅËß ...

Plasma Reaction Apparatus

본 발명에 따르면, 고전압이 인가되면 플라즈마 방전현상을 형성시키는 전극과, 상기 전극의 하단부와 연결되어 고전압을 공급하는 전원공급부와, 상기 전원공급부가 관통하여 삽입되는 관통홀이 중앙에 구비되어 상기 전원공급부의 관통 삽입에 의해 상기 전원공급부를 절연시키는 절연부재와, 상기 절연부재가 관통하여 삽입되는 관통홀이 중앙에 구비되고 상기 절연부재의 외주면 일측에 고정되어 설치되며 장착을 위해 외주면의 일측에는 나사선A가 형성된 몸통부를 포함하는 방전부;와 중앙부에 통공이 형성된 원통형의 형상으로 구비되되 하단부의 내주면에는 나사선B가 형성되며, 상기 통공에는 상기 방전부의 일측부가 삽입되어 상기 나사선A와 나사선B의 회전결합에 의해 상기 방전부와 체결되는 반응챔버;와 상기 반응챔버의 일측에 고정 결합되어, 상기 반응챔버의 내부로 연료를 분사하는 연료공급부;와 상기 반응챔버의 외주면 일측을 둘러싸는 형태로 설치되며, 내부에는 공기가 소통하는 통로가 상기 반응챔버의 외주면을 따라 형성된 공기챔버; 및 상기 공기챔버의 일측에 고정 결합되어 상기 공기챔버의 내부로 공기를 공급하는 공기주입구A를 포함하는 DPF 시스템용 플라즈마 반응장치가 제공된다. 플라즈마, DPF, 배기가스, 세라믹, 방전

Exhaust muffler of internal combustion engine

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: muffler has housing with inlet tangential branch pipe and outlet branch pipe, at least two envelopes installed coaxially in housing to form inlet, intermediate and outlet chambers together with housing in direction from axis to housing, spaces of chambers being series-interconnected through holes in envelopes. Space of inlet tangential branch pipe is connected with space of inlet chamber. Space of outlet chamber is connected with space of outlet branch pipe. Housing is made in form of scroll whose outlet is rigidly connected with tangentially installed outlet branch pipe. Envelopes are provided with guide tangential blades between which holes in form of wedge-shaped slots are made. Smaller-size sections of holes are pointed to gas inlet. Blades in envelopes are tilted in different sides. Tilting of blade in first envelope from axis is made to side coinciding with direction of rotation of gas getting from inlet tangential branch pipe. EFFECT: reduced aerodynamic resistance, labour input and improved ecological characteristics of muffler. 2 dwg собрбегс пы сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2 491 903. 13) С2 Е 01 М 1/12 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98114629/06, 21.07.1998 (24) Дата начала действия патента: 21.07.1998 (43) Дата публикации заявки: 10.05.2000 (46) Дата публикации: 21.10.2002 (56) Ссылки: ЗЧ 1638325 АЛ, 20.03.1991. ЗЧ 1036942 А, 18.02.1982. 5Ц 41284 А, 31.01.1935. 4$ 1352696 А, 26.10.1920. ЕК 1543367 А, 25.10.1968. (98) Адрес для переписки: 403002, Волгоградская обл., п.г.т. Городище, ул. Чапаева, 37, А.Г.Карпенко (71) Заявитель: Карпенко Анатолий Григорьевич (72) Изобретатель: Карпенко А.Г. (73) Патентообладатель: Карпенко Анатолий Григорьевич (54) ГЛУШИТЕЛЬ ШУМА ВЫХЛОПА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ (57) Глушитель содержит корпус с входным тангенциальным патрубком и выходным патрубком, ...

Ice exhaust cleaning system

FIELD: engines and pumps. SUBSTANCE: proposed system uses catalyst arranged in engine exhaust channel to cause reaction of NO X contained in offgas and reformed hydrocarbon. Besides, catalyst base on noble metals is applied on offgas cleaning catalyst surface in contact with offgas flow. Note here that basic offgas flow surface is formed around catalyst based on noble metals. Offgas cleaning catalyst can reduce NO X contained in exhaust gas in initiating vibrations of offgas hydrocarbon concentration in preset amplitude range and preset period range. Besides, offgas cleaning catalyst increases amount of NO x contained in exhaust gas on increasing period of vibrations of hydrocarbon concentration beyond preset range. Note here that in engine operation, conversation of hydrocarbons in offgas cleaning catalyst is forced to vary in said preset amplitude range and preset period range to reduce NO x in offgas cleaning catalyst. EFFECT: higher rate of NO x cleaning. 24 cl, 36 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 479 730 (13) C1 (51) МПК F01N 3/08 (2006.01) F02D 41/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011139704/06, 15.03.2010 (24) Дата начала отсчета срока действия патента: 15.03.2010 (73) Патентообладатель(и): ТОЙОТА ДЗИДОСЯ КАБУСИКИ КАЙСЯ (JP) (45) Опубликовано: 20.04.2013 Бюл. № 11 2 4 7 9 7 3 0 (56) Список документов, цитированных в отчете о поиске: JP 3969450 В2, 05.09.2007. JP 2005113801 А, 28.04.2005. JP 2009168031 А, 30.07.2009. JP 2008002451 А, 10.01.2008. RU 2211724 С2, 10.09.2003. RU 2191270 С2, 20.10.2002. RU 2008119129 А, 20.11.2009. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.09.2011 2 4 7 9 7 3 0 R U (87) Публикация заявки РСТ: WO 2011/114499 (22.09.2011) C 1 C 1 (86) Заявка PCT: JP 2010/054730 (15.03.2010) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры" (54) СИСТЕМА ОЧИСТКИ ВЫХЛОПНЫХ ГАЗОВ ...

Exhaust gas toxicity reduction

FIELD: transport. SUBSTANCE: invention relates to exhaust gas toxicity reduction system. Claimed system comprises the device for hydrocarbons feed to exhaust pipeline arranged along the exhaust gas flow behind the hydrocarbons feed point and device for exhaust gas toxicity reduction. The latter ups the exhaust gas temperature due to oxidation of hydrocarbons fed into exhaust pipeline. Said device for exhaust gas toxicity reduction incorporates structural elements with catalytically active coating. Hydrocarbons in feed device are partially evaporated and chemically varied owing to cracking reaction and/or partial oxidation. Platinum fraction at a separate part of catalytic coating of structural elements makes less than 50% of total amount of catalytically active substances. EFFECT: efficient heating of exhaust gases, higher efficiency of the system. 18 cl, 1 tbl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 567 331 C2 (51) МПК F01N 3/023 (2006.01) F01N 3/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011153012/06, 28.05.2010 (24) Дата начала отсчета срока действия патента: 28.05.2010 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.12.2013 Бюл. № 36 (45) Опубликовано: 10.11.2015 Бюл. № 31 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.12.2011 (86) Заявка PCT: 2 5 6 7 3 3 1 (56) Список документов, цитированных в отчете о поиске: US 7032376 B1, 25.04.2006US 2008127638 A1, 05.06.2008DE 102005037969 A1, 15.02.2007DE 4325906 A1, 09.02.1995 (73) Патентообладатель(и): УМИКОРЕ АГ & КО. КГ (DE), ДОЙТЦ АГ (DE) R U 30.05.2009 DE 102009023550.7 (72) Автор(ы): Рольф МИБАХ (DE), Штефан ШРАМЛЬ (DE), Петер БРОЛЛЬ (DE), Андреас ГАЙССЕЛЬМАНН (DE), Штефан ДЕ-БУР (DE), Стефани ФРАНТЦ (DE), Анке ВЁРЦ (BE), Франк-Вальтер ШЮТЦЕ (DE) 2 5 6 7 3 3 1 R U (87) Публикация заявки PCT: WO 2010/139429 (09.12.2010) Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр ...

Ic engine exhaust manifold

Urea ammonia transformming device and urea scr system using of the same

본 발명의 목적은 분사되는 요소수가 고온부에 체류하는 반응 시간을 확보하여, 배기가스 및 장치의 온도를 높이기 위하여 소요되는 에너지 비용을 감소시키는 요소수 암모니아 전환 장치를 제공하는 것이다. 본 발명의 일 실시예에 따른 요소수 암모니아 전환 장치는, 고온의 배기가스를 배출하는 배기관의 도중에 설치되는 하우징, 상기 하우징의 내부에서 배기가스의 유동 방향으로 설치되어 상기 하우징의 내부를 중심의 고온부와 외곽의 저온부로 구획하는 구획 부재, 및 상기 하우징에 설치되어 상기 구획 부재의 내측으로 요소수를 분사하는 요소수 노즐을 포함하며, 상기 구획 부재는 분사된 요소수를 상기 하우징의 중심 고온부로 유도하여 배출한다. It is an object of the present invention to provide a urea water conversion apparatus which secures a reaction time in which the number of urea gases to be injected stays in a high temperature zone and reduces the energy cost required for raising the temperature of the exhaust gas and the apparatus. The urea water ammonia conversion apparatus according to an embodiment of the present invention includes a housing installed in the middle of an exhaust pipe for discharging exhaust gas at a high temperature, a high temperature portion provided in the flow direction of exhaust gas from the inside of the housing, And a urea water nozzle which is provided in the housing and injects urea water into the inside of the partition member, wherein the partition member guides the injected urea water to the central high temperature portion of the housing, .

Exhaust gas control apparatus for internal combustion engine

一种排气控制装置包括氧化催化剂(13)、具有比发动机排气通路的截面小的截面的小型氧化催化剂(14)、燃料供给阀(15)、电热塞(51)和电子控制单元(30)。用于排气控制装置的控制模式包括燃料从燃料供给阀被供给、由电热塞加热并且被点燃的第一控制模式，燃料从燃料供给阀被供给并且由电热塞加热但是不被点燃的第二控制模式，和燃料从燃料供给阀被供给并且电热塞不提供加热的第三控制模式。电子控制单元在能点燃的运转区域内选择第一或第三控制模式，并且在不能点燃的运转区域内选择第二或第三控制模式。

Htemal reactor of engine for automobile

GAS CLEANING METHOD

Burner apparatus

一种进行氧化剂与燃料的混合气的燃烧的燃烧器装置（S1），具有将对混合气（Y）进行点火的点火区域（R2）和维持混合气（Y）的燃烧的火焰稳定区域（R3）以混合气（Y）以能够通气的方式区划开并且调节从点火区域（R2）供给至火焰稳定区域（R3）的混合气（Y）的流速的分隔部件（8），分隔部件（8）具有向氧化剂通过流路（1）突出且将在氧化剂通过流路（1）中流动的氧化剂的一部分阻挡并引导至取入流路区域（R1）的突出部（8a1）。根据该燃烧器装置（S1），通过将充分量的氧化剂供给至燃烧区域而令混合气的燃烧状态稳定化，进而能够稳定地进行高温气体的生成。

DEVICE AND METHOD FOR MANAGING THE FOLLOWING SYSTEM OF THE FOLLOWING PROCESSING OF EXHAUST GASES

1. Способ управления работой форсунки для системы последующей обработки отработавших газов (ПООГ) для предотвращения отложения нагара, причем сопло форсунки имеет каталитическое покрытие, и способ включает:выборочный впрыск углеводородной текучей среды в поток отработавших газов для повышения их температуры;подачу воздуха через сопло форсунки, если не осуществляется впрыск углеводорода, и температура отработавших газов ниже порогового уровня; ипо существу прекращение прохода потока воздуха через сопло форсунки, если не осуществляется впрыск углеводорода и температура отработавших газов выше порогового уровня.2. Способ по п. 1, дополнительно включающий:мониторинг состояния системы ПООГ;мониторинг температуры отработавших газов; ирегулирование впрыска углеводорода в поток отработавших газов в зависимости от состояния системы ПООГ и температуры отработавших газов.3. Способ по п. 1, включающий подачу потока воздуха через форсунку сразу же после впрыска углеводорода для продувки форсунки с целью удаления остающегося в ней углеводорода.4. Способ по п. 1, в котором подачу потока воздуха через сопло форсунки по существу прекращают, если температура отработавших газов выше порогового уровня, до тех пор пока температура отработавших газов не опустится ниже порогового уровня.5. Способ по п. 1, в котором подачу потока воздуха через сопло форсунки по существу прекращают, когда температура отработавших газов выше порогового уровня, на заданный временной интервал. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F01N 3/20 (13) 2015 106 316 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015106316, 26.07.2012 (71) Заявитель(и): МАК ТРАКС, ИНК. (US) Приоритет(ы): (22) Дата подачи заявки: 26.07.2012 (43) Дата публикации заявки: 20.09.2016 Бюл. № 26 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.02.2015 (72) Автор(ы): МЕЙЕР Филип (US), ДЖАКЕЗ Уолтер (US), ДОН Цуньлон (US) (86) Заявка PCT: US 2012/048277 (26 ...

Device and method of nozzle controlling of exhaust gas processing system

FIELD: engines. SUBSTANCE: invention relates to systems of processing of exhaust gases of internal combustion engines. Method of control of nozzle work, which serves for injection of hydrocarbons in the flow of exhaust gases, involves: fuel injection for heating of system units. If the fuel is not injected, then air is supplied for blowing and cooling of the blasting nozzle to prevent deposition of carbon, if the exhaust gas temperature is low. And in essence air supply is stopped to enable passibility of passive heating of blasting nozzle with exhaust gases for oxidation of accumulated carbon, if the temperature of exhaust gases is high enough to provide an oxidation. In the preferred version of the nozzle has a catalytic coating to reduce oxidation temperature of material scale. EFFECT: using of the invention will prevent coking of nozzle. 5 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 604 405 C2 (51) МПК F01N 3/20 (2006.01) F01N 3/025 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015106316/06, 26.07.2012 (24) Дата начала отсчета срока действия патента: 26.07.2012 (73) Патентообладатель(и): МАК ТРАКС, ИНК. (US) (43) Дата публикации заявки: 20.09.2016 Бюл. № 26 R U Приоритет(ы): (22) Дата подачи заявки: 26.07.2012 (72) Автор(ы): МЕЙЕР Филип (US), ДЖАКЕЗ Уолтер (US), ДОН Цуньлон (US) (45) Опубликовано: 10.12.2016 Бюл. № 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.02.2015 (86) Заявка PCT: 2 6 0 4 4 0 5 (56) Список документов, цитированных в отчете о поиске: US 8006482 B2, 30.08.2011. SU 173543 A1, 21.07.1965. WO2009005666 A1, 08.01.2009. US 6630244 B1, 07.10.2003 . US 20080209897, 04.09.2008. 2 6 0 4 4 0 5 R U (87) Публикация заявки PCT: WO 2014/018036 (30.01.2014) Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, ЕВРОМАРКПАТ (54) УСТРОЙСТВО И СПОСОБ УПРАВЛЕНИЯ ФОРСУНКОЙ СИСТЕМЫ ПОСЛЕДУЮЩЕЙ ОБРАБОТКИ ОТРАБОТАВШИХ ГАЗОВ (57) ...

Exhaust gas after-treatment device

본 발명은 배기가스 후처리 장치에 대한 것으로, 본 발명에 따르면 단순한 구조를 통해 배기가스가 불꽃에 영향을 끼치는 현상을 막아줄 수 있고, 배기가스의 압력 손실을 방지할 수 있으며, 별도의 외부 공기 공급 장치가 없더라도 화염 유지를 위한 산소 공급이 가능하고, 연소된 배기가스를 필터부 입구에서 전체 영역에 골고루 분산시켜 진입되도록 함으로써 필터 파손도 방지할 수가 있다. The present invention relates to an exhaust gas post-treatment device. According to the present invention, it is possible to prevent the phenomenon that the exhaust gas affects the flame through a simple structure, it is possible to prevent the pressure loss of the exhaust gas, and to separate the external air. Even if there is no supply device, it is possible to supply oxygen for flame maintenance, and it is possible to prevent filter breakage by dispersing the burnt exhaust gas evenly over the entire area at the inlet of the filter unit.

Heater for the exhaust gas reduction apparatus for the vehicles and exhaust gas reduction apparatus for the vehicles using the same

차량용 배기가스 저감장치용 가열장치가 개시된다. 본 발명에 따른 차량용 배기가스 저감장치용 가열장치는, 파이프 형상으로 마련되어 차량의 엔진에서 발생되는 배기가스가 배출되도록 마련되는 배기가스 배출 유닛, 배기가스 배출 유닛으로부터 배출되는 배기가스를 미리 설정된 온도로 가열하도록 마련되며, 배기가스 배출 유닛의 일단부를 감싸도록 종단면이 Y자 형상으로 마련된 표면 연소 유닛, 표면 연소 유닛의 일단부와 결합하며, 일단부가 배기가스 저감부와 연결되도록 마련된 연결 유닛을 포함한다.

Exhaust gas purifier and method of control therefor

희박연소를 실행하는 내연기관 및 연소기기 등에서, SOx 등의 피독을 생기게 하지 않고, 효율이 좋게 NOx 및 검댕이 등의 입자상 물질을 제거하는 것을 목적으로 하고 있다. 내연기관(1) 등의 배기통로(2)에 설치되는 배기가스 정화장치로서, 공기과잉분위기이더라도 질소산화물을 일시적으로 흡착할 수 있고, 이 흡착한 질소산화물의 승온 또는 환원분위기에서 탈리하는 NOx 흡착재(4)와, 상기 NOx 흡착재(4)보다 배기 상류측에 배치되고, 배기를 승온 또는 환원분위기로 하는 흡착물질 탈리수단(3), 상기 NOx 흡착재(4)보다 배기 하류측에 배치되어, 연료노즐(6) 및 점화장치(7)로 구성된 연소장치(5)를 상기 배기통로(2) 내에 구비하고 있다. 통상운전시에는, NOx 흡착재(4)로 배기가스 중의 NOx를 흡착해서, NOx 흡착량이 포화상태로 되면 흡착물질 탈리수단(3) 및 연소장치(5)를 작동시켜 NOx를 탈리시켜, 연소장치(5)의 연료과농연소영역(X1)에서 연소시켜 제거한다. The purpose is to remove particulate matter such as NOx and soot efficiently without causing poisoning such as SOx in internal combustion engines and combustion apparatuses that perform lean combustion. An exhaust gas purifier installed in an exhaust passage 2 such as an internal combustion engine 1, which is capable of adsorbing nitrogen oxides temporarily even in an excess air atmosphere, and is a NOx adsorbent which is desorbed from the elevated temperature or reducing atmosphere of the adsorbed nitrogen oxides. (4) and an adsorbent material desorption means (3) disposed at an upstream side of the exhaust gas from the NOx adsorbent (4), and arranged at an exhaust downstream side from the NOx adsorbent (4), and arranged at an exhaust downstream side of the NOx adsorbent (4). A combustion device 5 composed of a nozzle 6 and an ignition device 7 is provided in the exhaust passage 2. In normal operation, the NOx adsorbent 4 adsorbs NOx in the exhaust gas, and when the NOx adsorption amount becomes saturated, the adsorbent material desorption means 3 and the combustion device 5 are operated to desorb the NOx and the combustion apparatus ( It is removed by burning in fuel and concentrated combustion zone (X1) of 5).

Aftertreatment system with solid ammonium for selective catalyst reduction

본 발명은 내연기관 또는 연소기에서 배출되는 유해배출가스인 질소산화물(NOx)을 저감하는 기술에 관한 것으로, 더욱 상세하게는 고체 암모늄을 열분해하여 암모니아를 만들고 선택적 환원촉매 상에서 질소산화물과 반응시켜 인체에 무해한 질소로 정화시킬 수 있도록 하며, 고체 암모늄이 열분해 되어 암모니아 가스로 승화되는 온도까지 마이크로웨이브를 이용해 고체 암모늄을 빠르게 승온시켜 차량의 초기 시동 시에도 질소산화물의 저감이 가능하며, 마이크로웨이브를 이용해 고체 암모늄을 가열하므로 고체 암모늄에서 암모니아 가스로 승화되는 양 및 속도를 용이하게 조절할 수 있는 선택적 촉매 환원장치용 고체 암모늄 이용 배출가스 저감장치에 관한 것이다. The present invention relates to a technology for reducing nitrogen oxides (NOx), which is a harmful exhaust gas emitted from an internal combustion engine or a combustor. More specifically, the present invention relates to a technique for pyrolyzing solid ammonia to produce ammonia and reacting with nitrogen oxides on a selective reduction catalyst, It is possible to purify with harmless nitrogen and it can rapidly reduce the amount of nitrogen oxide even at the initial start of the vehicle by heating the solid ammonium rapidly by microwave to the temperature where the solid ammonium is pyrolyzed and sublimated into ammonia gas. The present invention relates to a solid ammonium exhaust gas reducing apparatus for a selective catalytic reduction apparatus capable of easily regulating the amount and rate of sublimation from solid ammonium to ammonia gas by heating ammonium.

Exhaust device for internal combustion engine

An exhaust manifold for a multi-cylinder internal combustion engine is provided with preliminary oxidation reaction chambers, each of which receives exhaust gases from exhaust port liners each serving a pair of adjacent cylinders of different exhaust timing. These preliminary oxidation reaction chambers each communicate downstream with a main oxidation reaction chamber subdivided into a plurality of concentric subchambers. The subchambers enclose the preliminary oxidation reaction chambers and exhaust gas inlet pipes. Combustion of unburned hydrocarbons (HC) is principally accomplished in the preliminary oxidation reaction chambers, and the exhaust gases are maintained at relatively high temperature and retained for a sufficient period of time in the subchambers to accomplish oxidation of the unburned carbon monoxide (CO).

Patent JPS5728837B2

Method for the operation of an IC engine with low emissin of pollutants and an arrangement for performing the method

For the operation of an IC engine for low emission of pollutants and with the passage of the engine exhaust gases through a thermal converter (14), the conversion temperature is produced and maintained even in periods in which the engine temperature is otherwise too low by a heating device (14) supplied by the engine exhaust gases and designed in the form of a thermal converter.

Exhaust manifold

Fuel filter device

Exhaust purification system of internal combustion engine

내연 기관에 있어서, 기관 배기 통로 내에 탄화수소 공급 밸브(15)와, 배기 정화 촉매(13)가 배치된다. 배기 정화 촉매(13) 위에는 백금(Pt)(51)이 담지되어 있고, 염기성층(53)이 형성되어 있다. 배기 정화 촉매(13)로 유입되는 탄화수소의 농도가 200ppm 이상의 미리 정해진 범위 내의 진폭 및 5초 이하의 미리 정해진 범위 내의 주기를 가지고 진동하게 되어, 그에 의해 배기 가스 중에 포함되는 NOx가 배기 정화 촉매(13)에 있어서 환원하게 된다. In an internal combustion engine, a hydrocarbon supply valve 15 and an exhaust purification catalyst 13 are disposed in an engine exhaust passage. Platinum (Pt) 51 is supported on the exhaust purification catalyst 13, and a basic layer 53 is formed. The concentration of hydrocarbon flowing into the exhaust purification catalyst 13 vibrates with an amplitude within a predetermined range of 200 ppm or more and a period within a predetermined range of 5 seconds or less, whereby NOx contained in the exhaust gas is exhaust purification catalyst 13 ) Is reduced.

Noise suppressor

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent JPS5216165B2

Exhaust gas purification device for internal combustion engine

本発明は、内燃機関の排気通路に配置される選択還元型触媒と、選択還元型触媒より上流の排気通路へアンモニア由来の還元剤を供給する還元剤供給装置と、選択還元型触媒より上流且つ還元剤供給装置より下流の排気通路に配置される混合器と、を備えた内燃機関の排気浄化装置において、混合器に付着又は堆積する還元剤由来の固形物を好適に除去することを課題とする。この課題を解決するために、本発明は、前記混合器より上流の排気通路に、前記混合器へ火炎を吹き付ける昇温装置を設けるようにした。 The present invention includes a selective reduction catalyst disposed in an exhaust passage of an internal combustion engine, a reducing agent supply device that supplies a reducing agent derived from ammonia to an exhaust passage upstream of the selective reduction catalyst, an upstream of the selective reduction catalyst, and In an exhaust gas purification apparatus for an internal combustion engine comprising a mixer disposed in an exhaust passage downstream of a reducing agent supply device, it is an object to suitably remove solids derived from the reducing agent that adhere to or accumulate on the mixer To do. In order to solve this problem, according to the present invention, a temperature raising device for blowing a flame to the mixer is provided in an exhaust passage upstream of the mixer.

METHOD FOR PREPARING CATALYSTS FOR GAS CLEANING

Patent JPS5146205B2

Burner with low back pressure and stable spray

Air-fuel ratio control device for internal combustion engine

Turbocharger

Exhaust gas purification device for internal combustion engine

本発明は、排気通路（１８）に排気処理装置（２８）を備えた内燃機関の排気浄化装置（１）を提供する。排気浄化装置（１）は、排気処理装置（２８）よりも上流側に設けられた酸化装置（４６）と、該酸化装置（４６）の上流側に燃料を添加するための燃料添加弁（４２）と、該燃料添加弁（４２）から添加された燃料を加熱するために酸化装置（４６）の上流側に設けられたグロープラグ（４４）とを備える。酸化装置（４６）は、排気流路方向断面において、０．０００６４５２ｍ２当たり、３０以上かつ２００以下のガス通路を備えるように形成されている。 The present invention provides an exhaust purification device (1) for an internal combustion engine provided with an exhaust treatment device (28) in an exhaust passage (18). The exhaust purification device (1) includes an oxidizer (46) provided upstream of the exhaust treatment device (28), and a fuel addition valve (42) for adding fuel to the upstream side of the oxidizer (46). And a glow plug (44) provided on the upstream side of the oxidizer (46) for heating the fuel added from the fuel addition valve (42). The oxidizer (46) is formed to have 30 or more and 200 or less gas passages per 0.0006452m2 in the cross section in the direction of the exhaust passage.

Exhaust header for internal combustion engines, able to eliminate unburnt combustion residues

The eshaust head (3) is apt to reduce or even eliminate unburnt or, anyhow, polluting combustion residues and comprises, in a portion of the gas path having oversized cross-section and thus in which the gases have reduced speed, electrical resistances (12) which are kept at a temperature suitable for triggering the combustion of the combustible residues in order to eliminate the unburnt residues.