Abstract: An exhaust gas purification device arranged in an exhaust system of an engine, and includes a renewing device for burning and removing a particulate matter within the exhaust gas purification device. The renewing device is operable in the case that a clogged state of the exhaust gas purification device is equal to or more than a prescribed level, wherein the exhaust gas purification system includes renewal admittance input means which allows an actuation of the renewing device, and rotating speed holding input means for holding a rotating speed of the engine to a predetermined rotating speed, and in the case that a turn-on operation of the rotating speed holding input means is carried out in a state in which an allowing operation of the renewal admittance input means is carried out, the rotating speed holding motion of the engine is executed in preference to an actuation of the renewing device.

Abstract: Various systems and method are described for controlling an engine having an exhaust system which includes a particulate filter. One example method comprises, after shutting down the engine and spinning down the engine to rest, operating a vacuum pump to draw fresh air through the exhaust system to an intake system, and regenerating at least a portion of the particulate filter during the engine rest.

Abstract: In a method for regenerating s catalyzed diesel particulate filter (DPF) via active NO2-based regeneration with enhanced effective NO2 supply, a NOx containing gas is introduced into the DPF, and a temperature of at least one of the DPF, the NOx containing gas, and soot in the DPF is controlled while control Sing NOx levels at an inlet of the DflF so that the NOx containing gas reacts with the catalyst to form N 02 molecules that thereafter react with soot particles to form CO, CO2, and NO molecules and a N02 efficiency is greater than 0.52 gC/gNO2 and so that less than two thirds of the soot mass that is removed from the DPF is oxidized by 02 molecules in the gas to form CO and CO2 molecules.

Abstract: This invention has an object to appropriately correct characteristic variation of a PM sensor and to improve detection accuracy of the sensor. The PM sensor has a pair of electrodes for capturing the PM in an exhaust gas, and a sensor output changes in accordance with a captured amount of the PM. If the sensor output gets close to a saturated state, the PM combustion control for combusting and removing the PM between the electrodes by a heater is executed.

Abstract: A method of controlling an internal combustion engine that includes an exhaust line fitted with a particulate filter, the method including: a) acquiring a charge parameter relating to a fill level of the particulate filter, b) comparing the charge parameter with at least one determined threshold, and c) bringing the internal combustion engine to a set operating point determined as a function of various criteria of differing levels of importance. Prior to c) and with one of the criteria being the mass flow rate of particles entering the particulate filter, a constraint level coefficient is determined as a function of the result of the comparing b) and applied to the particulate mass flow rate to weight importance of this criterion in determining the engine operating point.

Abstract: Methods and systems are provided for expediting catalyst heating and generating vacuum by controlling an EBV to direct exhaust through an ejector arranged in parallel with the EBV. A position of the EBV may be controlled to achieve a desired exhaust backpressure for current engine operating conditions and stored vacuum level. Compensation for the effect of EBV position on engine airflow may be provided by adjustment of other parameters such as intake throttle position and spark timing.

Abstract: Provided is an exhaust gas processing device for a diesel engine which can carry out sufficient regeneration processing of a DPF. A DPF regeneration control section continues normal regeneration processing by a DPF regeneration control section when an accelerated regeneration starting operation section does not perform accelerated regeneration starting operation after notification of accelerated regeneration requiring information is started. The DPF regeneration control section prohibits the normal regeneration processing, and an accelerated regeneration re-requirement notification section starts notification of accelerated regeneration re-requiring information, when a PM accumulation amount estimate becomes equal to or higher than an accelerated regeneration re-requirement determination value J4.

Abstract: A method of assessing non-methane hydrocarbon (NMHC) conversion efficiency in a diesel after-treatment (AT) system having a diesel oxidation catalyst (DOC) arranged upstream of a diesel particulate filter (DPF) includes regenerating the AT system. Additionally, the method monitors DOC inlet and outlet temperatures during the regeneration. The method also assesses whether the DOC is operating at or above threshold efficiency by determining a DOC inlet/outlet temperature difference and comparing the determined inlet/outlet temperature difference with a threshold inlet/outlet temperature difference. The method also monitors DPF outlet temperature if the DOC is operating at or above the threshold efficiency and determines a DOC temperature/DPF outlet temperature difference.

Abstract: An ammonia canister connector is disclosed having a male component and a female component which reversibly couple to one another to form a secure connection. The male component has a base with an internal threaded portion for detachable connection to an ammonia canister tap, a fluid filter within the base, and a nipple section extending from the base and having at least two seal members. Similarly, in various embodiments, the female component is connectable to a feed line and includes a receptacle defined by a sidewall and configured to accept the nipple section of the male component, a sleeve positioned about the receptacle sidewall and capable of limited sliding movement, a locking mechanism positioned within the receptacle sidewall for alternately engaging and disengaging from the nipple section when inserted within the receptacle, wherein the locking mechanism is actuated by the sliding movement of the sleeve, and a check valve within the female component for preventing back flow to the receptacle.

Abstract: According to one embodiment, described herein is an apparatus for decomposing diesel exhaust fluid into ammonia for an internal combustion engine (ICE) system having a selective catalytic reduction system. The apparatus includes an outlet cover, an inlet cover coupled to the outlet cover, and a support plate disposed between the outlet cover and the inlet cover. The support plate forms an outlet channel with the outlet cover and an inlet channel with the inlet cover. The inlet channel is fluidly coupled to the outlet channel. Additionally, the inlet channel may be adjacent to the outlet channel.

Abstract: A motor vehicle combustion engine includes an air supply section and an exhaust gas recirculation section that includes a particle filter and an SCR exhaust gas purification component. A first exhaust gas turbocharger includes a turbine arranged upstream of the particle filter in the exhaust gas section. A first exhaust gas recirculation line, which diverges from the exhaust gas section upstream of the turbine of the first exhaust gas turbocharger, and a second exhaust gas recirculation line, which diverges from the exhaust gas section downstream of the particle filter are provided to recirculate the exhaust gas from the exhaust gas section into the air supply system. An SCR catalyst is arranged in the second exhaust gas recirculation line.

Abstract: In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. A first hydrocarbon feed method which injections hydrocarbons from the hydrocarbon feed valve (15) by predetermined feed intervals (?T) so that the air-fuel ratio of the exhaust gas falls to the demanded minimum air-fuel ratio (X) to thereby remove the NOx contained in the exhaust gas and a second hydrocarbon feed method which lowers the feed amount of hydrocarbons from the hydrocarbon feed valve (15) and feeds fuel to the combustion chambers (2) during a second half of the expansion stroke or the exhaust stroke are selectively used.

Abstract: Embodiments for regenerating a particle filter are provided. In one example, a method includes operating a spark-ignition internal combustion engine having a particle filter for collecting and burning soot particles in exhaust gas comprises in order to initiate regeneration of the particle filter. The method may include, in response to a regeneration condition, increasing exhaust temperature by retarding spark timing and once regeneration is reached, operating the engine with lean combustion to regenerate the particle filter, where a degree of leanness is based on each of a state of the filter and an upstream three-way catalyst.

Abstract: A method and device for regenerating an exhaust gas aftertreatment component for filtering soot particles in an engine having a first cylinder group, exhaust gases being guided through an exhaust gas channel and whose fuel/air mixture ratio is set via a fuel metering system, activated via a control unit, by a control loop for setting a lambda value using a signal of a first exhaust gas sensor, in the exhaust gas flow direction upstream from a catalytic converter, having at least another cylinder group, exhaust gases being guided through another exhaust gas channel and whose fuel/air mixture ratio is set via another fuel metering system by another control loop for setting another lambda value based on the signal of another exhaust gas sensor, in the exhaust gas flow direction upstream from a catalytic converter, the separate channels joined together downstream to form a shared channel, having a shared catalytic converter.

Abstract: A method of detecting ash in an exhaust particulate filter system for an internal combustion engine includes transmitting electromagnetic energy through an exhaust particulate filter containing soot and ash, and sensing a strength of the transmitted electromagnetic energy after having been attenuated in response to the soot. The method further includes electronically storing a filter monitoring history responsive to a difference between the transmitted strength and the sensed strength of the electromagnetic energy, and detecting an amount of the ash based at least in part upon a pattern of electromagnetic energy attenuation defined by the stored filter monitoring history. An exhaust particulate filter system for implementing related methodology includes a microprocessor configured to determine a value indicative of an amount of ash contained within an exhaust particulate filter responsive to a pattern of electromagnetic energy attenuation defined by a stored filter monitoring history.

Abstract: A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.

Abstract: A method is provided for the selective catalytic reduction of nitrogen oxides in the exhaust gas of internal-combustion engines in motor vehicles. An electronic control device, by way of a signal of a sensor in a reducing agent tank, detects whether a reducing agent is in a frozen state. The electronic control device applies heating current to a PTC heating element in the reducing agent tank if the reducing agent is in a frozen state, calculates the resistance of the PTC heating element from the onboard voltage of the motor vehicle and the heating current, and compares the resistance with a first defined resistance threshold and/or with a first defined gradient threshold of the increase in resistance. The amount of reducing agent fed into the exhaust gas from the reducing agent tank is reduced if the first resistance threshold and/or the first gradient threshold is exceeded.

Abstract: A fluid delivery device, in particular for delivering exhaust gas posttreatment media, such as a urea-water solution, for an internal combustion engine, includes a movable work wall, in particular a work diaphragm. A work chamber is provided for a fluid that is to be delivered via at least one fluid connection. The work chamber is capable of being increased and decreased in size by means of the movable work wall, the at least one fluid connection, and at least one mechanism for moving the work wall upon an intake stroke and a compression stroke. The at least one mechanism is embodied such that the force for moving the work wall both in the intake stroke and in the compression stroke includes a Lorentz force.

Abstract: Various methods and systems are provided for operating an internal combustion engine, the engine having a plurality of cylinders including one or more donor cylinders and one or more non-donor cylinders. In one example, a method includes, during an exhaust gas recirculation cooler heating mode, operating at least one of the donor cylinders at a cylinder load sufficient to increase an exhaust temperature for regenerating an exhaust gas recirculation cooler, and operating at least one of the non-donor cylinders in a low- or no-fuel mode.

Abstract: An assembly for mixing liquid within a gas flow includes a hollow conduit that is configured for containing a flow of gas and liquid droplets. The assembly also includes multiple spaced blades and an impingement element. Each of the blades is operatively connected to and extends from the impingement element and is connected to an inner wall of the conduit. The impingement element is upstream of the blades in the flow of gas. The impingement element and the blades are configured to create a preferred distribution of the liquid droplets within the gas flow downstream of the blades within the conduit.

Abstract: An exhaust gas treatment device for preventing a large quantity of unburned HC components from being released to the outside until a diesel oxidation catalyst reaches an activation temperature after early post-injection. By reducing a throttle opening of a variable throttle mechanism (77) provided in an oil passage (72), or increasing a set value of an oil pressure level detected in an oil pressure sensor (78) provided on the downstream side of the variable throttle mechanism, power of an oil circulation pump (74) is increased before a start point t1 of the early post-injection. With this arrangement, by increasing a load of a diesel engine to increase a temperature rise gradient of exhaust gas at the stage of increasing the temperature of the diesel oxidation catalyst, the unburned HC component released until the diesel oxidation catalyst reaches the activation temperature is reduced.

Abstract: A method of regenerating a particulate filter is provided. The method includes estimating a stress level of the particulate filter; and selectively controlling current to a heater of the particulate filter based on the stress level.

Abstract: A system includes an engine configured to operate in a first operating state and a second operating state, a particulate filter configured to receive exhaust gas from the engine and filter particulate matter from the exhaust gas, and an oxidation catalyst configured to generate heat to increase a temperature of the exhaust gas during a regeneration process. A sensor is configured to measure an actual temperature of the exhaust gas during the regeneration process. A controller is configured to define a fuel conversion factor based, at least in part, on the actual temperature and an expected temperature of the exhaust gas. The controller is further configured to analyze the fuel conversion factor over time relative to at least one of the first and second operating states of the engine and diagnose a fault in the regeneration process based, at least in part, on the fuel conversion factor.

Abstract: Embodiments for reducing ammonia slip are provided. In one example, a method for reduction of ammonia emissions from an engine exhaust gas aftertreatment device with an SCR catalyst comprises determining a concentration of NOx and/or ammonia in the exhaust gas aftertreatment device, comparing a determined value of NOx and/or ammonia concentration with a nominal value for NOx and ammonia, respectively, and if an actual or shortly forecasted ammonia concentration is above the respective nominal value, triggering engine conditions with higher exhaust NOx concentration. In this way, ammonia slip may be reduced without degrading fuel economy.

Abstract: A method and device for raising the temperature of exhaust gas from an engine by increasing parasitic loading on the engine without significantly increasing engine speed. This may be accomplished by increasing a demand on a hydraulic fan powered by a variable displacement hydraulic pump and meeting the demand by adjusting the displacement for the variable displacement hydraulic pump.

Abstract: A system and method includes an exhaust aftertreatment system for an internal combustion engine having a reductant stored in a solid storage media. The reductant is released by heating the solid storage media to convert the reductant to gaseous form. The system and method determines the quality of the solid storage media by measuring operating parameters of the aftertreatment system and comparing the operating parameters to expected parameters stored in a memory of a controller of the system.

Abstract: A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent extending at least partially into the exhaust line curved portion and disposed in the exhaust flow. The downstream wall has an interior surface oriented to substantially face the exhaust line downstream end. A recess extends from the downstream wall in a direction away from the exhaust line downstream end, and a recess aperture is formed in the recess and configured to fluidly communicate with the injector. The recess reduces the amount of exhaust heat reaching the injector tip.

Abstract: A vehicle includes a fuel tank, an internal combustion engine, an oxidation catalyst, a regenerable particulate filter in fluid communication with an outlet side of the oxidation catalyst, and a host machine. The host machine calculates an actual hydrocarbon level in the exhaust stream downstream of the particulate filter as a function of an actual energy input value and an actual output value of the oxidation catalyst, and subsequently executes a control action using the actual hydrocarbon level. A method for use aboard the vehicle includes using the host machine to calculate an actual hydrocarbon level in the exhaust stream downstream of the particulate filter, including solving a function of an actual energy input value and an actual energy output value of the oxidation catalyst, and executing a control action aboard the vehicle via the host machine using the actual hydrocarbon level.

Abstract: A method for operating a reducing agent delivery device having a liquid reducing agent tank, an injector dispensing reducing agent into an exhaust treatment device, an internal combustion engine and a reducing agent line from tank to injector, includes conveying the reducing agent from tank to injector with a pump and providing a pressure sensor in the line. The method includes, repeatedly: determining and providing supply pressure for the injector in the delivery device with the pump, calculating an injector opening time from a determined injection volume and supply pressure and opening the injector at the calculated injector opening time. A venting procedure at a point in time includes: determining an increase of a pressure conveying volume characteristic in the delivery device, calculating an air bubble volume by comparing the increase to a target increase, and conveying a conveying volume through the injector. A motor vehicle is also provided.

Abstract: A liquid reductant injection system is provided. The liquid reductant injection system includes a storage tank housing a reductant solution, a return conduit extending into the storage tank, the return conduit including an outlet positioned in the storage tank, and a thermosyphon comprising an evaporator coupled to an exhaust conduit and in fluidic communication with a condenser coupled to a portion of the return conduit inside the storage tank, the condenser positioned vertically above the evaporator.

Abstract: Disclosed is a super-turbocharger system that increases power and efficiency of an engine. The system uses the exothermic properties of a catalytic converter to extract additional energy from exhaust heat that is used to add power to the engine. Compressed air is supplied and mixed with exhaust gases upstream and/or downstream from a catalytic converter that is connected to an exhaust manifold. The gaseous mixture of exhaust gases and compressed air is sufficiently rich in oxygen to oxidize hydrocarbons and carbon monoxide in the catalytic converter, which adds heat to the gaseous mixture. In addition, a sufficient amount of compressed air is supplied to the exhaust gases to maintain the temperature of the gaseous mixture at a substantially optimal temperature level. The gaseous mixture is applied to the turbine of the super-turbocharger, which increases the output of said super-turbocharger, which increases the power and efficiency of said engine.

Abstract: System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons.

Abstract: System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons.

Abstract: An exhaust purification system of an internal combustion engine is provided with a first NOX selective reduction catalyst which is arranged inside of an engine exhaust passage and which selectively reduces NOX by feed of a reducing agent, a second NOX selective reduction catalyst which is arranged inside of the engine exhaust passage at the downstream side of the first NOX selective reduction catalyst and which selectively reduces NOX by feed of a reducing agent, and a reducing agent feed device which feeds a reducing agent to the first NOX selective reduction catalyst. The system estimates the amount of adsorption of the reducing agent which is adsorbed at the second NOX selective reduction catalyst and prevents the estimated amount of adsorption of the reducing agent from exceeding the allowable value by adjusting the amount of feed of reducing agent from the reducing agent feed device.

Abstract: An apparatus determines whether or not there is a malfunction in a reducing agent supply apparatus having a reducing agent addition valve provided in the exhaust system of an internal combustion engine. The reducing agent addition valve injects liquid reducing agent into the exhaust gas. A temperature sensing unit that senses the temperature of the exhaust gas is provided at a position in the exhaust system of the internal combustion engine through which the reducing agent injected through the reducing agent addition valve passes. As the reducing agent is injected through the reducing agent addition valve, the temperature decrease of the exhaust gas at the position through which the reducing agent passes is calculated by a temperature decrease calculation unit. Whether or not there is a malfunction in the reducing agent supply apparatus is determined by a diagnosis unit, based on the temperature decrease of the exhaust gas.

Abstract: Various methods for and embodiments of an aftertreatment system which includes a catalyst disposed upstream of a particulate filter are provided. In one example, the method includes, conducting soot regeneration of the particulate filter under a selected operating condition, and determining whether a soot regeneration frequency of the particulate filter is greater than a threshold frequency. The method further includes initiating a sulfur regeneration of the aftertreatment system based on the soot regeneration frequency of the particulate filter being greater than the threshold frequency, determining whether the soot regeneration frequency of the particulate filter is less than the threshold frequency after the sulfur regeneration, and conducting non-regeneration operation of the aftertreatment system based on the soot regeneration frequency of the particulate filter being less than the threshold frequency after the sulfur regeneration of the aftertreatment system.

Abstract: An exhaust emission control device for an internal combustion engine is provided that can suppress the adherence of HC to an EGR path and the like accompanying enrichment of the exhaust air/fuel ratio.

Abstract: An exhaust purification system is provided that can continuously maintain a NOx purification rate to be high while suppressing the occurrence of ammonia slip. The exhaust purification system includes a slip determination portion 34 that determines the occurrence of ammonia slip based on an output value NH3CONS of an ammonia sensor 26. A reference injection amount calculating portion 31 calculates a reference injection amount GUREA—BS based on a parameter correlating to an operating state of an engine. A switching injection amount calculating portion 32 decreases in amount a urea injection amount GUREA by setting a switching injection amount GUREA—SW to a negative value in response to having determined that ammonia slip has occurred, and increases in amount the injection amount GUREA by setting the switching injection amount GUREA—SW to a positive value in response to a storage amount estimated value STUREA having fallen below a predetermined switch storage amount STUREA—SW.

Abstract: An exhaust emission control device comprises a selective reduction catalyst for reacting NOx in an exhaust gas with ammonia, means for adding a urea water into the exhaust gas upstream of the catalyst and a cylindrical mixing pipe as a connection between the adding means and the catalyst, an entry end of the mixing pipe being formed with circumferential opening sections and provided with guide fins for guiding the exhaust gas to the opening sections tangentially of the entry end to provide a mixer structure, the adding means being arranged centrally on the entry end of the mixing pipe and directed toward an exit end of the mixing pipe for addition of the urea water into a swirling flow of the exhaust gas caused by the mixer structure. The opening sections are formed along the swirling flow.

Abstract: Method for determining a starting time of a regeneration process of a particle filter which is connected into the exhaust train of an internal combustion engine, in particular of a diesel engine, wherein the data of an air mass flow rate meter, of an exhaust gas temperature sensor and of a differential pressure sensor are fed to a control unit and the control unit starts the regeneration on the basis of the data by means of the comparison with characteristic diagrams.

Abstract: The invention relates to an arrangement (1) for operating an exhaust gas aftertreatment device, in particular of a motor vehicle, having a plurality of active sensors (3-8) and a control device (2) that comprises at least one voltage supply unit (9) to which the sensors (3-8) are operatively connected. According to the invention, the voltage supply unit (9) comprises at least two supply benches (13-15) that can be switched independently from each other. The sensors (3-8) are grouped according to the function thereof and are then associated with one of the supply benches (13-15).

Abstract: A method for controlling regeneration within an after-treatment component of a compression-ignition engine includes receiving a value of a parameter associated with an exhaust stream passing through the after-treatment component and determining a rate of change of the parameter. A filtered parameter value is calculated based on the value of the parameter, the rate of change of the parameter, and a predetermined filtering relationship for the parameter. Accumulated particulate matter in the after-treatment component is estimated based, at least, on a soot accumulation model and the filtered parameter value. The estimate of accumulated particulate matter in the after-treatment component is compared to a predetermined threshold associated with the after-treatment component, and a remedial action is initiated when the estimate of accumulated particulate matter in the after-treatment component exceeds the predetermined threshold.

Abstract: A method for monitoring the capability of a catalytic converter to convert nitrogen monoxide into nitrogen dioxide in the exhaust gas of an internal combustion engine, the catalytic converter being arranged in an exhaust gas duct of the internal combustion engine and the catalytic converter being followed downstream by a collecting particle sensor. It is in this case provided that, in a monitoring cycle, a decrease in the particle loading of the particle sensor during the operation of the internal combustion engine under predetermined operating conditions is taken to conclude an adequate capability of the catalytic converter to convert from nitrogen monoxide to nitrogen dioxide.

Abstract: Systems and methods for storing NH3 that has slipped through a first SCR are described. In one example, NH3 is stored in a second SCR and released to the first SCR via desorption. The systems and method may reduce NH3 consumption and increase NH3 utilization within an exhaust system.

Abstract: Exhaust treatment filters, systems, and methods are disclosed. According to one or more embodiments, a particulate filter is zone coated with an oxidation catalyst and is used in an emission treatment system or method including a NOx reducing catalyst and an optional NH3 destruction catalyst.

Abstract: An exhaust gas treatment system for an internal combustion engine comprises an oxidation catalyst device configured to oxidize the hydrocarbon and carbon monoxide in the exhaust gas. A first temperature sensor is located downstream of the oxidation catalyst device and has a temperature probe that is in fluid communication with the exhaust gas flow exiting the oxidation catalyst device. A second temperature sensor is located downstream of the oxidation catalyst device and has a temperature probe that is in fluid communication with the exhaust gas flow exiting the oxidation catalyst device. The temperature probe includes a catalyst compound coating disposed thereon and is operable to catalyze the oxidation of CO and HC, or a combination thereof, that exits the oxidation catalyst device. A controller is in signal communication with temperature sensors and is configured to monitor signals from temperature sensors to determine if the temperature differential exceeds a predetermined threshold.

Abstract: A mixing system is provided. The mixing system includes a housing defining a boundary of a mixing conduit including an expansion section with an injector mount and a reductant diverter extending into the conduit upstream of the injector mount in the expansion section. The mixing system further includes an atomizer with openings positioned in the housing and a helical mixing element positioned in the housing.

Abstract: Disclosed herein is an SCR system of a vessel for discharging exhaust gas from an exhaust gas source in the vessel to an outside after performing purification of the exhaust gas. The SCR system includes an SCR reactor connected at a leading end thereof to the exhaust gas source and including a catalyst activated by the exhaust gas introduced into the SCR reactor, a reducing agent supply line supplying NH3 or urea into the SCR reactor, and a bypass system forcing the exhaust gas discharged from the exhaust gas source to bypass the SCR reactor.

Abstract: A mounting assembly for an injector is located in a curved portion of an exhaust line having an exhaust flow from an upstream end to a downstream end. The mounting assembly includes an indent extending at least partially into the exhaust line curved portion and disposed in the exhaust flow. The downstream wall has an interior surface oriented to substantially face the exhaust line downstream end. A recess extends from the downstream wall in a direction away from the exhaust line downstream end, and a recess aperture is formed in the recess and configured to fluidly communicate with the injector. The recess reduces the amount of exhaust heat reaching the injector tip.

Abstract: Termination of regeneration of a particulate filter may be based on a variable percent threshold of stored particulate, where the percent threshold of stored particulate depends on a current soot burn rate. In one example approach, a method for controlling regeneration of a diesel particulate filter comprises: terminating regeneration based on a particulate burning rate; wherein the particulate burning rate is based on operating conditions of the diesel particulate filter; the operating conditions including an amount of stored particulate in the diesel particulate filter and a temperature of the diesel particulate filter.