Entries |
Document | Title | Date |
20080196394 | System For Assisting Regeneration Of Pollution Management Means For Motor Vehicle Engine - The invention concerns a system for assisting regeneration of pollution management means ( | 08-21-2008 |
20080196395 | Exhaust Gas Purification System For Internal Combustion Engine - The present invention is directed to an exhaust gas purification system for an internal combustion engine that performs high pressure PM filter regeneration process by decreasing the degree of opening of an exhaust throttle valve in regenerating the particulate matter trapping capacity of a particulate filter and has as an object to provide a technology that enables to perform the high pressure PM filter regeneration process while suppressing excessive temperature rise of the particulate filter even while the vehicle is moving. According to the invention, a prediction is made, when the high pressure PM filter regeneration process is performed, as to whether there is a possibility that the temperature of the particulate filter will reach a predetermined upper limit temperature, and the pressure inside the particulate filter is controlled in accordance with the prediction. | 08-21-2008 |
20080202104 | Controller of exhaust gas purifying agent and exhaust gas purifying system - A quantity of a purifying agent that is added into an exhaust gas, reacts with a specific component in the exhaust gas, and purifies the exhaust gas is controlled. A controller is configured so as to be provided with a program to carry out either increment control for increasing the quantity of urea water sequentially or decrement control for decreasing the quantity of the urea water sequentially while monitoring, in NOx in the exhaust gas, the quantity not purified through the reaction with NH | 08-28-2008 |
20080202105 | APPARATUS/METHOD FOR PRODUCING HOT GAS AND DIESEL PARTICULATE FILTER SYSTEM - The invention relates to an apparatus for producing hot gas with a first combustion chamber ( | 08-28-2008 |
20080209893 | Exhaust aftertreatment system having a diesel particulate filter manufactured for reducing thermal gradients - A diesel particulate filter includes a honeycomb structure having a plurality of elongated cell walls defining a plurality of passages and a skin layer surrounding the honeycomb structure. The filter is regenerated by oxidizing particulate matter trapped within the honeycomb structure by heating at least a portion of the honeycomb structure. A thermal gradient between the honeycomb structure and the skin layer is limited to less than a crack causing thermal gradient by utilizing at least one of maintaining a ratio of a heat capacity of the skin layer to a heat capacity of the cell walls at less than about 5, blocking at least those passages comprising a perimeter of the honeycomb structure, and heating the skin layer from an external side. | 09-04-2008 |
20080209894 | Method For Regeneration Of An Exhaust Aftertreatment System - In a method and a device for regeneration of a regeneratable unit which forms part of an exhaust aftertreatment system, the unit is arranged upstream of a catalytic rector in an exhaust duct connected to an internal combustion engine. Part of the inlet air of the internal combustion engine is during regeneration conducted to the exhaust duct for regulating the temperature in the gas flow to the catalytic reactor. | 09-04-2008 |
20080209895 | Regeneration device having external check valve - An exhaust treatment device for a combustion system is disclosed. The exhaust treatment device may have a housing, and an injector disposed within the housing to deliver an injection fluid into a flow of exhaust. The exhaust treatment device may also have at least one fluid supply passage that is disposed within the housing and being in fluid communication with the injector to supply the injector with injection fluid. The exhaust treatment device may further have at least one purge passage disposed within the housing and in fluid communication with the injector to supply the injector with a purge fluid. The exhaust treatment device may additionally have a first valve element that is mounted to the housing and disposed at an entrance of the at least one purge passage The first valve element may be configured to provide a unidirectional flow of purge fluid to the at least one purge passage. | 09-04-2008 |
20080216468 | Method and Apparatus for Regenerating Engine Exhaust Filters - Internal combustion engine exhaust filter devices and the like are regenerated by placement in a reclamation or burn-off furnace, raising the temperature to at least about 800° F. to 900° F. and conducting relatively low volumes of low pressure air through the filter media to combust entrapped particulates and other materials residing on the filter media. The reclamation furnace includes an afterburner for combusting materials discharged from the filter devices into the furnace chamber so that complete combustion of materials is accomplished before discharge from the furnace. The flow of combustion air for the filter devices is controlled by manifolding and valving connected to a source and the oxygen content of combustion air may be enhanced by a separate source of oxygen injected into the combustion air flow stream. | 09-11-2008 |
20080236147 | Reductant delivery unit for selective catalytic reduction - A reductant delivery unit ( | 10-02-2008 |
20080250774 | REDUCTANT INJECTION CONTROL STRATEGY - A dosing module for a vehicle comprises a base dose module, a dose adjustment module, and a dose determination module. The base dose module generates a base dose signal that corresponds to a mass flow rate of a dosing agent. The dose adjustment module receives an ammonia (NH3) signal and determines a first dose adjustment based upon the NH3 signal. The NH3 signal indicates NH3 measured downstream of a catalyst. The dose determination module generates a dosing signal based upon the base dose signal and the first dose adjustment. | 10-16-2008 |
20080256933 | Internal Combustion Engine Having On-Board Electrolyzer And Method Of Using Same - A method and apparatus for treating the exhaust gases and improving fuel efficiency of an internal combustion engine is shown, wherein an on board electrolyzer is employed to produce hydrogen (H | 10-23-2008 |
20080264044 | Exhaust Gas Purification Apparatus Regeneration System of Internal Combustion Engine - An object of the present invention is to prevent, in connection with an exhaust gas purification apparatus regeneration system of an internal combustion engine, the possible travel distance of a vehicle after warning by a warning apparatus for warning excessive smallness of the fuel quantity is started from being unduly shortened even if regeneration control is executed while the warning is given by a warning apparatus. The system according to the invention has a warning apparatus that gives warning when the remaining fuel quantity is equal to or smaller than a first specified fuel quantity. When it is predicted that the regeneration control in which fuel is supplied to the exhaust gas purification apparatus will be executed when the remaining fuel quantity is equal to or smaller than the first specified remaining quantity, warning by the warning apparatus is started before the remaining fuel quantity becomes equal to the first specified remaining quantity (S | 10-30-2008 |
20080264045 | Exhaust Gas Purification Apparatus, Internal Combustion Engine Comprising the Same, and Particulate Filter Restoring Method - In an embodiment of an exhaust gas purification apparatus, when an accumulation amount of particulate matter in a DPF ( | 10-30-2008 |
20080264046 | Regeneration device having air-assisted fuel nozzle - A regeneration device for use with an exhaust treatment system is disclosed. The regeneration device may have a housing with a fuel passageway and a first air passageway. The regeneration device may also have an injector disposed in the housing in fluid communication with the fuel passageway and the first air passageway. The regeneration device may further have a combustion canister connected to receive a fuel/air mixture from the injector. | 10-30-2008 |
20080271440 | Vehicle-Based Strategy for Removing Urea Deposits from an SCR Catalyst - A method is provided for operating an aftertreatment device coupled downstream of an internal combustion engine, the aftertreatment device including a urea-based selective catalyst reduction (SCR) catalyst. The method comprises establishing a threshold urea deposit accumulation for regeneration of the SCR catalyst; determining that the threshold urea deposit accumulation in the SCR catalyst has been met; and in response to the determination, regenerating the SCR catalyst by maintaining the SCR catalyst at a predetermined regeneration temperature for a predetermined time interval. | 11-06-2008 |
20080276602 | Particulate Filter Regeneration and NOx Catalyst Re-Activation - A system and method may be provided for operating a system having an engine with an emission control system, the emission control system including a lean NOx trap and a particulate filter, where after lean exhaust gas air-fuel ratio regeneration of the particulate filter at an elevated regeneration temperature, a rich or intermittently rich exhaust air-fuel ratio is provided for a duration lasting until LNT temperature falls to a minimum threshold, where said rich or intermittently rich operation reactivates catalysts in the LNT and reverses deactivation caused by the elevated temperature lean operation associated with previous particulate filter regeneration. | 11-13-2008 |
20080276603 | PARTICULATE FILTER REGENERATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - A particulate filter regeneration system for an internal combustion engine includes a plurality of combustion cylinders, an intake manifold and an exhaust manifold. The particulate filter regeneration system includes a particulate filter adapted for communication with the exhaust manifold, a flame heater adapted for communication with the intake manifold, and a temperature indicator for providing an indication of a temperature associated with the exhaust manifold. A controller is coupled with the temperature indicator and the flame heater. The controller actuates the flame heater dependent upon a particulate filter regeneration indicator and a signal from the temperature indicator indicating a temperature of less than approximately 300° C. | 11-13-2008 |
20080276604 | EXHAUST GAS CLEANING APPARATUS - An exhaust gas cleaning apparatus is provided with an exhaust gas particulate filter, an oxidation catalytic converter and a regeneration control component. The exhaust gas particulate filter is arranged in an exhaust passage of an internal combustion engine for capturing particulate matter in exhaust gas from the internal combustion engine. The oxidation catalytic converter is arranged upstream of the exhaust gas particulate filter in the exhaust passage. The regeneration control component is configured to control an exhaust gas recirculation rate and a temperature of recirculated exhaust gas being recirculated to an air induction system of the internal combustion engine for controlling a temperature of the exhaust gas particulate filter and a concentration of nitrogen dioxide in the exhaust gas particulate filter such that nitrogen dioxide generated by the oxidation catalytic converter is used to burn the particulate matter captured in the exhaust gas particulate filter. | 11-13-2008 |
20080295500 | Regeneration device having cooled injection housing - A regeneration device for use in an exhaust treatment system is disclosed. The regeneration device has a first housing with a plurality of passages configured to receive coolant and injection fluid. A second housing is secured to the first housing and configured to receive coolant and injection fluid. The second housing has at least one cooling recess annularly disposed within the second housing to receive and circulate coolant in proximity to a tip end of the second housing. | 12-04-2008 |
20080307775 | ELECTRICALLY HEATED PARTICULATE FILTER EMBEDDED HEATER DESIGN - An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine and wherein an upstream surface of the particulate filter includes machined grooves. A grid of electrically resistive material is inserted into the machined grooves of the exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. | 12-18-2008 |
20080307776 | ELECTRICALLY HEATED PARTICULATE FILTER REGENERATION USING HYDROCARBON ADSORBENTS - An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material selectively heats exhaust passing through the upstream end to initiate combustion of particulates within the PF. A hydrocarbon adsorbent coating applied to the PF releases hydrocarbons into the exhaust to increase a temperature of the combustion of the particulates within the PF. | 12-18-2008 |
20080314031 | Algorithm incorporating driving conditions into LNT regeneration scheduling | 12-25-2008 |
20090013672 | EXHAUST GAS PURIFICATION DEVICE FOR AN ENGINE - According to the invention, an exhaust gas purification device for an engine is provided. The device comprises: a plurality of cylinders, the cylinders being divided into at least two cylinder groups; exhaust branch pipes connected to the cylinder groups at their upstream ends, respectively; a common exhaust pipe connected to the downstream ends of the exhaust branch pipes; and a NOx catalyst positioned in the common exhaust pipe. When a sulfate contamination regeneration process for regenerating the sulfate contamination of the NOx catalyst is performed by controlling the air-fuel ratio of the exhaust gas discharged from one of the cylinder groups to a rich air-fuel ratio and controlling the air-fuel ratio of the exhaust gas discharged from the other cylinder group to a lean air-fuel ratio and a purge gas including fuel vapor is purged into an intake pipe, one of the amount of purge gas and the ratio of the amount of purge gas relative to an amount of fresh air flowing through the intake pipe is controlled on the basis of the concentration of fuel vapor in the purge gas. | 01-15-2009 |
20090019840 | BREATHER DEVICE, LIQUID TANK, AND EXHAUST GAS PURIFYING APPARATUS TO BE ADAPTED FOR ENGINE - A breather device A | 01-22-2009 |
20090025374 | System and Method for Cleaning Combustion Soot from Exhaust Gas Treatment Sensors - A system and method are provided for cleaning combustion soot from an exhaust gas aftertreatment sensor. The system and method determine whether to conduct a sensor desoot event, and if it is determined that a sensor desoot event is to be conducted, the exhaust gas temperature is increased such that the temperature of the sensor correspondingly increases to or above a desoot temperature, the exhaust gas temperature is then controlled to maintain the temperature of the sensor at or above the desoot temperature for a predefined time period, and the exhaust gas temperature is then decreased after the temperature of the sensor has been at or above the desoot temperature for the predefined time period. | 01-29-2009 |
20090025375 | Catalyst composition and structure for a diesel-fueled autothermal reformer placed in and exhaust stream - The inventions relates to catalysts comprising precious metals supported on La stabilized refractory metal oxides. The La is provided on the surface of the refractory metal oxide in an amount to form at least about a monolayer, preferably about 1-2 mono-layers. Preferably, the La has no crystalline structure shown by X-ray diffraction. Nd and mixtures of La and Nd can be used in place of La. In one embodiment, the catalyst is a reforming catalyst comprising an effective amount of Rh on a ZrO | 01-29-2009 |
20090038294 | Tuning Particulate Filter Performance Through Selective Plugging and Use of Multiple Particulate Filters to Reduce Emissions and Improve Thermal Robustness - Modified exhaust aftertreatment filters for filtering engine exhaust are provided as are methods of design and manufacturing modified exhaust aftertreatment filters. The modified filters are subject to reduced back pressure and reduced thermal gradients experienced during regeneration as compared to unmodified filters. The modified filters include flow-through channels obtained by unplugging channels which normally are plugged in an unmodified filter. | 02-12-2009 |
20090038295 | Electrically heated DPF start-up strategy - An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature. | 02-12-2009 |
20090038296 | Liquid tank, breather device, and exhaust gas purification device for engine - In a liquid tank provided with a pressure relief vent hole, a shielding member surrounding the vent hole is disposed. The shielding member forms an isolated chamber communicated with the vent hole. In a portion located to the side of the vent hole, the shielding member allows communication between the isolated chamber and an inner space in the liquid tank excluding the isolated chamber. On the other hand, in a portion located below the vent hole, the shielding member blocks movement of the liquid between the isolated chamber and the inner space. | 02-12-2009 |
20090044519 | Device and method for purification of exhaust gases from an internal combustion engine - The invention relates to device for emission control of an internal combustion engine ( | 02-19-2009 |
20090044520 | Intake Air Heater for Assisting DPF Regeneration - An apparatus and a method for enhancing diesel engine performance is provided. At low engine load and cold ambient temperatures, an intake air heater increases the engine load via an engine alternator, which in turn, enables the engine to burn more fuel by the process of combustion. The combusted fuel elevates exhaust gas temperatures, which thereby accommodates cold start, controls white smoke, and aids DPF regeneration. | 02-19-2009 |
20090049828 | Control of SCR system having a filtering device - An emissions control system is disclosed. The emissions control system may have a power source that creates a flow of exhaust and a filtering device that receives the flow of exhaust. A first sensor may be located at or upstream of the filtering device, the first sensor being configured to measure a first temperature, and an SCR catalyst may be located downstream of the filtering device. The emissions control system may also have an injector configured to inject a reduction agent into the flow of exhaust in the presence of the SCR catalyst. The emissions control system may further have a controller in communication with the first sensor. The controller may be configured to predict a change in an ability of the SCR catalyst to store reduction agent using a measured change in the first temperature and adjust the injector according to the predicted change in the storage ability of the SCR catalyst. | 02-26-2009 |
20090049829 | Assembly for Mixing a Medium with the Exhaust Gas Flow of a Motor Vehicle Exhaust System - An assembly for mixing a medium with an exhaust gas flow of a motor vehicle exhaust system has a first exhaust pipe and a second exhaust pipe. The first exhaust pipe comprises a device for introducing the medium and opens axially into a connecting member that is widened with respect to the first exhaust pipe. The second exhaust pipe opens laterally into the connecting member. The connecting member is configured to impart an angular momentum to the exhaust gas flow. | 02-26-2009 |
20090064668 | APPARATUS AND SYSTEM FOR ENHANCING AFTERTREATMENT REGENERATION - An apparatus and system are disclosed for enhancing aftertreatment regeneration. The system includes an internal combustion engine and an exhaust manifold directing the engine exhaust to an aftertreatment system. The system may further include an exhaust gas recycle system and a turbocharger. The system further includes a fuel injector mounted on the exhaust manifold that provides fuel to assist in regenerating an aftertreatment component. The fuel injector is mounted in an apparatus also including a flow dampener, an extender, and a residence chamber. The apparatus allows the fuel to be injected in a high temperature location where it will experience residence time at temperature, and experience shear forces passing through the turbocharger. The extender allows the fuel to be injected at a place in the exhaust manifold where recycling of injected fuel into the engine is minimized. | 03-12-2009 |
20090071132 | Heated urea conduit arrangement for an exhaust-gas aftertreatment system for an internal combustion engine - A heated urea conduit arrangement includes a hose conduit ( | 03-19-2009 |
20090077954 | CONTINUOUSLY REGENERATING PARTICULATE FILTER FOR INTERNAL COMBUSTION ENGINE - An internal combustion engine system having a non-catalyzed particulate filter receiving products of combustion at a temperature of frequently above 600° C. and an excess of oxygen of between 0.5 and 0.8% from a stoichiometric diesel engine. A NO | 03-26-2009 |
20090077955 | METHOD FOR OPERATING A METERING VALVE AND APPARATUS FOR IMPLEMENTING THE METHOD - A method for operating an electromagnetically actuated metering valve, which is loaded with a pulse-width modulated metering signal, which stipulates the dosage of a reagent or a precursor of the reagent introduced into the exhaust gas region of an internal combustion engine and an apparatus for implementing the method are proposed. A clock signal is provided, whose cycle duration is smaller than the cycle duration of the pulse-width modulated metering signal. The cycle duration of the pulse-width modulated metering signal is set as a function of a metering request signal to multiples of the cycle durations of the clock signal. The procedural approach according to the invention allows for a rapid adaptation of the dosage to the metering demands. | 03-26-2009 |
20090090099 | LATE POST-INJECTION FUELING STRATEGY IN A MULTI-CYLINDER DIESEL ENGINE DURING REGENERATION OF AN EXHAUST AFTER-TREATMENT DEVICE - A strategy for late post-injection fueling in a diesel engine ( | 04-09-2009 |
20090100826 | Diesel Exhaust Gas Temperature Reduction - An exhaust system for a vehicle having a diesel engine and a method of operation are disclosed. The exhaust system may include a diesel particulate filter, a pipe located downstream of the diesel particulate filter and an exhaust gas cooling assembly. The exhaust gas cooling assembly may have an air pump and a connecting pipe connected to the pipe and configured to direct air from the air pump into the pipe. During particulate filter regeneration, the air pump may be activated to push air into the exhaust in order to reduce the temperature of exhaust gasses exiting the vehicle. | 04-23-2009 |
20090100827 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust gas purification apparatus includes a venturi constituting part of an exhaust pipe and formed by joining two axially divided parts together, and a reducing agent supply device for injecting an aqueous urea solution into the exhaust pipe. The venturi is positioned such that joints thereof are located to the right and left, respectively, of the center of a cross section perpendicular to the axis of the venturi. | 04-23-2009 |
20090107123 | LOW EMISSION TURBO COMPOUND ENGINE SYSTEM - An air breathing, fuel consuming internal combustion engine such as a diesel or homogenous charge compression ignition engine has an air intake and an exhaust for products of combustion. A pair of turbochargers receive the products of combustion in a series relationship and an exhaust aftertreatment device, such as a particulate filter, receive the products of combustion from the downstream turbine. A power turbine receives the output from the exhaust aftertreatment device and an EGR system downstream of and exposed to the output of the power turbine selectively passes a selected portion of the output to a point upstream of the upstream turbocharger compressor. A device adds fuel to the aftertreatment device to regenerate the particulate filter and the power turbine recoups the additional energy. The power turbine may be used to drive accessories or the prime output of the engine. The system may selectively add fuel to the exhaust aftertreatment device to temporarily increase energy driving accessories for the engine or adding to the prime output of the engine. | 04-30-2009 |
20090120072 | Pre-combustor and large channel combustor system for operation of a fuel reformer at low exhaust temperatures - An exhaust aftertreatment system is provided with a large channel combustor, a fuel reformer, and a lean NO | 05-14-2009 |
20090120073 | EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust pipe is provided with an oxidation catalyst, a SCR catalyst (ammonia selective reduction catalyst), and an ammonia slip catalyst. In the exhaust pipe, the urea water adding valve is provided between the oxidation catalyst and the SCR catalyst. A NOx sensor which detects the NOx quantity in an exhaust gas is provided downstream of the SCR catalyst. An ECU controls the urea water adding valve to add the urea water to the exhaust gas. While the urea water is added to the exhaust gas, the ECU successively obtains a NOx sensor output, and computes an adding quantity command value in which the NOx sensor output becomes minimum. | 05-14-2009 |
20090133389 | EXHAUST EMISSION CONTROL DEVICE - An exhaust emission control device includes an exhaust pipe, a catalyst in the pipe promoting reduction reaction of nitrogen oxide in exhaust air, a supply device for supplying an additive agent to an upstream side of the catalyst, a temperature detecting device for detecting exhaust air temperature, and a control device for controlling the supply device to regulate the additive agent amount supplied into the pipe. The control device stops supply of the additive agent when exhaust air temperature is lower than generation temperature needed to generate the reducing agent from the additive agent, and supplies the additive agent when exhaust air temperature is equal to or higher than generation temperature. When a predetermined time has elapsed after a start of supply of the additive agent, the control device reduces the additive agent amount supplied, compared to the additive agent amount supplied before the predetermined time has elapsed. | 05-28-2009 |
20090151337 | CONTROL SYSTEM FOR A PARTICULATE MATTER FILTER - A method comprises determining a temperature of a particulate matter (PM) filter in communication with an exhaust gas from an engine; and reducing a power output of the engine when the PM filter is not being regenerated and the temperature exceeds a first predetermined temperature. A control module comprises a PM filter temperature determination module that determines the temperature of a PM filter in communication with an exhaust gas from an engine; and a reduced engine power module in communication with the PM filter temperature determination module that reduces the power output of the engine when the PM filter is not being regenerated and the temperature exceeds a first predetermined temperature. | 06-18-2009 |
20090151338 | Method for controlling glow plug ignition in a preheater of a hydrocarbon reformer - A method for controlling a glow plug at a desired temperature. In a glow plug off state, the glow plug temperature status is monitored to prepare for the next combustion event. When ignition is requested, a determination is made as to how long full voltage can be applied to bring the glow plug to ignition temperature. A resistance/temperature map is provided to determine the resistance as a function of temperature. Another map is provided of temperature as a function of powering time at a full battery voltage in a First Heating Phase to ensure that the surface temperature of the glow plug will reach a predetermined temperature required to start combustion of an air/fuel mixture. A third map is provided of a PWM duty cycle for a Second Heating Phase to maintain the temperature of the glow plug to ensure flame propagation without damage to the glow plug. | 06-18-2009 |
20090151339 | Method and Arrangement for Improving the Hydrolysis of a Reduction Agent in an Exhaust Gas Post Treatment System - A method and arrangement for improving hydrolysis of a reduction agent in an exhaust gas post treatment system for selective catalytic reduction of NO | 06-18-2009 |
20090158715 | REGENERATION SYSTEM AND METHOD FOR EXHAUST AFTERTREATMENT DEVICES - A method and system is disclosed for regenerating a particulate filter, desulfating a lean NOx trap, desulfating or regenerating a hydrocarbon-selective catalytic reduction catalyst, desulfating or regenerating a urea-selective catalytic reduction catalyst, or a combination thereof. | 06-25-2009 |
20090158716 | Exhaust gas purification system for an internal combustion engine - The present invention is to provide a technique which can detect the level of degradation of a precatalyst in an exhaust gas purification system for an internal combustion engine that includes a NOx catalyst arranged on an exhaust passage of the internal combustion engine, and the precatalyst arranged on the exhaust passage at a location upstream of the NOx catalyst and having an oxidation function. In the present invention, the level of degradation of the precatalyst is detected based on the width of change in temperature of the NOx catalyst at the time when a reducing agent is intermittently supplied from an upstream side of the precatalyst to the precatalyst and the NOx catalyst. At this time, it is determined that the larger the width of change in temperature of the NOx catalyst, the higher the level of degradation of the oxidation catalyst is. | 06-25-2009 |
20090158717 | EXHAUST GAS PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - The exhaust gas purification device of an internal combustion engine of the present invention comprises an exhaust passage for guiding an exhaust gas exhausted from an engine to outside, a catalyst provided in the exhaust passage, an injection path connected on an upstream side of the catalyst in the exhaust passage, an additive injection valve installed in the injection path for supplying an additive to the catalyst through the injection path, and an inflow portion provided in a merging portion where the exhaust passage and the injection path merge for having a part of the exhaust gas flowing in the exhaust passage flow into the injection path. | 06-25-2009 |
20090158718 | EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE - The present invention provides an exhaust gas purification device for an internal combustion engine, comprising an exhaust passage including a catalyst for conveying exhaust gas discharged from the engine to the outside, and a bend formed by bending a portion of the exhaust passage directly upstream of the catalyst, the bend causing exhaust gas discharged from the engine to collide against a corner portion between an inlet end face of the catalyst and such portion of a wall of the exhaust passage that follows the outside of the bend, thereby increasing pressure at the corner portion, compared with the other portion of the inlet end face, and an additive injection valve fitted to the outside of the bend of the exhaust passage to inject an additive in such manner that the injected additive passes just above the corner portion and falls on the inlet end face of the catalytic converter. | 06-25-2009 |
20090165447 | EXHAUST PURIFICATION DEVICE FOR ENGINE - An agitating device for agitating the exhaust gas of an engine includes a base plate having a plurality of through holes that are defined by radially extending spoke portions and a ring-like rim portion and are arranged in a circular pattern in a circumferential direction of the base plate, and a plurality of fins expanding from the respective spokes on a slant with respect to the base plate. The base plate is fixed in the exhaust passage by the rim portion being jointed to the exhaust passage at welded portions. The welded portions are each disposed in an area between respective two adjacent spoke portions in the circumferential direction of the base plate, and an outer edge of the rim portion positioned on the outer side of the rim portion in extending directions of the spoke portions is located next to the exhaust passage with a gap provided therebetween. | 07-02-2009 |
20090173062 | Engine system having valve actuated filter regeneration - An engine is disclosed. The engine has an engine block at least partially forming a combustion chamber, and a piston located to reciprocate within the combustion chamber. The engine also has an exhaust valve fluidly connected to the combustion chamber, and a filter assembly fluidly connected to the exhaust valve. The engine further has a controller configured to open the exhaust valve during a portion of an intake stroke of the piston and a portion of a compression stroke of the piston to reduce an amount of air available for combustion during an ensuing power stroke, wherein the exhaust valve opens after a majority of the intake stroke is complete and closes during a first half of the compression stroke. | 07-09-2009 |
20090183499 | APPARATUS AND CONTROL METHOD FOR AVOIDING SHOCK IN DIESEL FILTERS - Provided are systems and/or methods that facilitate regeneration of a soot filter for a diesel engine. The systems and/or methods can include a bypass tube that connects a compressor side of a turbocharger to an exhaust side of the turbocharger. Compressed air from the turbocharger is introduced through the bypass tube into the soot filter and reduced a soot filter temperature, thereby mitigating the risk of thermal shock and over temperature conditions in the soot filter. | 07-23-2009 |
20090183500 | EVAPORATIVE FUEL TREATMENT APPARATUS FOR INTERNAL COMBUSTION ENGINE - An evaporative fuel treatment apparatus for an internal combustion engine includes: a communication portion that communicates a plurality of branch passages with one another at positions downstream of the plurality of throttle valves; a purge passage that introduces purge gas, containing evaporative fuel, to the communication portion; an air supply passage that flows dilution air, which is used to dilute the evaporative fuel, into the purge passage; a first flow rate changing portion that is provided in the air supply passage and that is able to change the inflow of the dilution air; and a control unit that controls the first flow rate changing portion. | 07-23-2009 |
20090188241 | Method for improving regeneration of a catalytic diesel particulate filter - A method for regeneration of a CDPF disposed in the exhaust stream of a diesel engine. The method includes a second phase operation following a first phase substantially as disclosed in the prior art. As the first phase ends, as indicated by a temperature sensor at the exit end of the CDPF, the temperature and oxygen content of the exhaust gas are increased at the entrance to the CDPF in an ensuing second stage. These increases cause oxidation of the soot remaining near the entrance and the sides of the CDPF, resulting in a cleaner and higher-capacity CDPF than is produced by a single-phase regeneration in the prior art. The sequential stages are implemented via an algorithm programmed into an Engine Control Module (ECM). A CDPF regenerated in accordance with the invention can have approximately 95% of its filtration capacity restored. | 07-30-2009 |
20090188242 | Method for triggering a regeneration event in a particulates filter of an internal combustion engine - A method for triggering a new regeneration event in a soot-trapping particulates filter disposed in an exhaust gas stream of an internal combustion engine, comprising the steps of determining instantaneous engine speed and engine load; determining instantaneous mass fractions for wet soot and for dry soot in the exhaust gas stream for the instantaneous engine speed and load; determining instantaneous concentrations of wet and dry soot particles in the exhaust gas; determining the rates of accumulation of wet soot and dry soot in the particulates filter; determining the total amounts of wet soot and dry soot accumulated in said soot-trapping device during all engine operation conditions since the latest previous regeneration event; and triggering the new regeneration event when the total amount of wet soot and dry soot exceeds a permissible value. | 07-30-2009 |
20090188243 | Method for controlling catalyst and filter temperatures in regeneration of a catalytic diesel particulate filter - A system for managing regeneration of a CDPF in a diesel engine. The system determines volatility of the accumulated soot by a weighting/indexing method to select a regeneration control strategy that protects the CDPF from thermal damage. The system determines the mass of wet soot and dry soot accumulated over the previous driving cycle and selects a management strategy to control the rate of temperature increase and the thermal gradient imposed upon the filter. The wet soot percent is an index for setting the regeneration temperature control profile for an allowable total accumulated soot mass as a function of the accumulated wet soot. The method also scales the soot mass regeneration threshold value based upon wet soot accumulation and accumulation rate and provides an indicator of combustibility of the soot accumulation. The method provides a temperature ramp rate, total regeneration time, and exhaust oxygen level required to control regeneration. | 07-30-2009 |
20090188244 | Apparatus and Method for Storing and Releasing Sulfur Containing Aromatic Compounds From a Fuel Stream of an Internal Combustion Engine - Disclosed is a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream. In one embodiment, the fuel filter comprises at least one column comprising an adsorbent. In one exemplary embodiment the adsorbent is capable of removing sulfur containing compounds, especially sulfur containing aromatic compounds, from fuels used in internal combustion engines, especially diesel fuels. Also disclosed is an apparatus for extending the life cycle of a post combustion emission control device. In one exemplary embodiment, the apparatus comprises a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream and an emission control device. Finally, a method for removing sulfur containing compounds from an internal combustion fuel stream is disclosed. In one exemplary embodiment, the method comprises passing a fuel through a fuel filter capable of removing sulfur containing compounds, storing the removed sulfur containing compounds, releasing a portion of the stored sulfur containing compounds, and sending the portion through the engine and into an emission control device. | 07-30-2009 |
20090193794 | Exhaust system implementing SCR and EGR - An exhaust system for use with an engine is disclosed. The exhaust system may have an exhaust passageway, a reduction catalyst located within the exhaust passageway, and a particulate filter located within the exhaust passageway upstream of the reduction catalyst. The exhaust system may also have an oxidation catalyst located within the exhaust passageway upstream of the reduction catalyst to provide a desired ratio of NO:NO | 08-06-2009 |
20090193795 | METHOD AND APPARATUS FOR REGENERATING AN AFTERTREATMENT DEVICE FOR A SPARK-IGNITION DIRECT-INJECTION ENGINE - The disclosure sets forth operating a spark-ignition, direct-fuel injection internal combustion engine equipped with an exhaust aftertreatment system including a lean-NOx adsorber device. The engine is operated substantially un-throttled and at a lean air/fuel ratio and a first fuel pulse is injected to meet an engine output torque during a compression stroke of each engine cycle prior to a spark-ignition event. When regeneration of the lean-NOx adsorber device is commanded, a second fuel pulse is injected during a second engine stroke of each engine cycle. | 08-06-2009 |
20090199545 | Apparatus For Reducing Dibenzodioxin Emissions And Dibenzofuran Emissions From Transition Metal-Containing Catalyzers - Apparatus for reducing emissions of PCDD and PCDF in exhaust gas of an internal combustion engine includes a transition metal-containing catalyzer for the selective catalytic reduction of nitric oxides, and a molecular sieve upstream of the catalyzer, either as a layer on the catalyzer or on a separate structure. The molecular sieve blocks hydrocarbons from reaching the transition metal-containing catalyzer. | 08-13-2009 |
20090205324 | EMISSION CONTROL SYSTEM HAVING A COATED MIXER FOR AN INTERNAL COMBUSTION ENGINE AND METHOD OF USE - An emission control system capable of remediating an exhaust from an internal combustion engine and having an exhaust passage, an oxidation catalyst, a reducing agent and a source of the reducing agent cooperating with an aperture in the exhaust passage. The aperture is disposed downstream of the oxidation catalyst. The system also includes a mixer arranged within the exhaust passage downstream of the aperture. The mixer includes a plurality of mixing elements. The mixer also includes a coating capable of hydrolyzing the reducing agent. At least a portion of the mixing elements which have a thermal conductivity greater than 8 W/m/° K. The system includes a selective catalytic reduction (SCR) catalyst disposed downstream from the mixer. | 08-20-2009 |
20090217648 | Exhaust treatment device having a reactive compound and conditioning the device via endothermic reaction - An exhaust treatment device and a method of conditioning the device that include a reactive compound capable of undergoing an endothermic reaction are described. A method of manufacturing the device is also disclosed. | 09-03-2009 |
20090217649 | EXHAUST SYSTEM FOR A MOTOR VEHICLE AND PROCESS FOR REGENERATING A PARTICULATE FILTER IN AN AUTOMOTIVE EXHAUST SYSTEM - An exhaust system for a motor vehicle comprises a particulate filter, upstream of which an oxidation catalyst is provided, and a regeneration device for the particulate filter. The regeneration device includes an evaporation unit for introducing a vapour generated from an oxidizable fluid into the exhaust gas stream before the oxidation catalyst. The evaporation unit includes a heating element arranged in a housing and a fluid supply with a controllable fluid pump. A control device controls the fluid pump. This invention furthermore relates to a process for regenerating a particulate filter. | 09-03-2009 |
20090235650 | Liquid Injector Assembly with a Flanged Connector Connection - A system for injecting from an injector into a duct of an engine system is provided. The system may include a first flange on a duct connection side, a second flange on an injector connection side, a stand-off separating the first flange from the second flange to form an air gap therebetween, and a seal offset from at least one of the first and the second flanges and located within the airgap and between the first flange and the second flange. | 09-24-2009 |
20090235651 | Device and method for recovering catalyst for fuel cell - The present invention provides a device and method for recovering a catalyst for a fuel cell, in which a carbon nanotube filter is provided in an air circulation loop of the fuel cell to recover catalyst particles washed away from a catalyst layer of an air electrode during operation of the fuel cell. | 09-24-2009 |
20090241520 | Diesel Exhaust Soot Sensor System and Method - Systems and methods to determine when regeneration of a diesel particulate filter (DPF) are presented. Such determination is made by indirectly determining soot accumulation in the DPF by monitoring soot accumulation on a regeneration burner spark plug based on the correlation between spark plug fouling and DPF soot loading. An ion current sensing circuit is used during periods of no flame to determine soot loading on the spark plug. When soot loading on the spark plug approaches an amount that could cause fouling of the spark plug, the ignition controller initiates a hot spark to burn the soot off the spark plug. The number of such cleaning events is tracked and used to determine when the DPF soot loading is at a level that regeneration should be initiated. Temperature rise across the DPF is monitored and used to adjust the number spark plug cleaning events needed before initiating regeneration. | 10-01-2009 |
20090241521 | APPARATUS FOR PURIFYING EXHAUST GAS - An apparatus for purifying exhaust gas may include a CPF device primarily oxidizing hydrocarbon and carbon monoxide in the exhaust gas by using a first DOC, and trapping and regenerating particulate material (PM), a DOC device mounted downstream of the CPF device, secondarily oxidizing the HC and the CO in the primarily oxidized exhaust gas by using a second DOC, and oxidizing nitrogen monoxide into nitrogen dioxide by using the second DOC, a nozzle mounted downstream of the DOC device, and dosing a reducing agent to the exhaust gas secondarily oxidized by the DOC device, and a selective catalytic reduction device mounted downstream of the nozzle, and reducing nitrogen oxide in the exhaust gas into nitrogen gas) by using the NO | 10-01-2009 |
20090241522 | System and Method For Improved Emission Control of Internal Combustion Engines Using Pulsed Fuel Flow - The present invention provides systems and methods to improve the performance and emission control of internal combustion engines equipped with nitrogen oxides storage-reduction (“NSR”) emission control systems. The system generally includes a NSR catalyst, a fuel processor located upstream of the NSR catalyst, and at least one fuel injection port. The fuel processor converts a fuel into a reducing gas mixture comprising CO and H | 10-01-2009 |
20090255234 | DEVICE FOR REGENERATION, TEMPERATURE LOADING, AND/OR THERMAL MANAGEMENT, ASSOCIATED INJECTION VALVE, AND METHOD - The invention relates to a device for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine. The device includes at least one injection valve which injects a fluid, in particular fuel, into the exhaust system, preferably in chatter mode, for example as a function of the pressure of the supplied fluid. The injection valve has a valve head and a valve seat which have geometries designed in such a way that a fluidic force of the supplied fluid acting on the injection valve drops continuously over a stroke of the valve head. The invention also relates to an injection valve having such valve-head and valve-seat geometries and to a corresponding method for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine. | 10-15-2009 |
20090266058 | Exhaust system implementing feedforward and feedback control - An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passageway, and a reduction catalyst disposed within the exhaust passageway. The exhaust system may also have a first sensor located to generate a first signal indicative of an operational parameter of the reduction catalyst, and a second sensor located to generate a second signal indicative of a performance parameter of the reduction catalyst. The exhaust system may further have an injection device located to inject reductant upstream of the reduction catalyst, and a controller in communication with the combustion engine, the first sensor, the second sensor, and the injection device. The controller may be configured to determine a NO | 10-29-2009 |
20090266059 | Exhaust system implementing in situ calibration - An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passageway, a reduction catalyst, a reductant injector, and a controller. The controller may have a NO | 10-29-2009 |
20090266060 | ENGINE PERFORMANCE MANAGEMENT DURING A DIESEL PARTICULATE FILTER REGENERATION EVENT - Various embodiments of an apparatus, system, and method are disclosed for managing regeneration event characteristics. For example, according to one embodiment, an apparatus for controlling the temperature of the output exhaust of an internal combustion engine for a regeneration event on a particulate matter filter includes a regeneration module, a turbocharger thermal management module, a fuel injection thermal management module, and an air intake thermal management module. The regeneration module determines a desired particulate matter filter inlet exhaust gas temperature for a regeneration event. The turbocharger thermal management module determines a variable geometry turbine (VGT) device position strategy. The fuel injection thermal management module determines a fuel injection strategy. The air intake thermal management module determines an intake throttle position strategy. The VGT device position strategy, the post-injection fuel injection strategy, and the intake throttle position strategy cooperatively achieve the desired particulate matter filter inlet exhaust gas temperature and maintain a fuel dilution level of the engine below a maximum fuel dilution level. | 10-29-2009 |
20090266061 | EXHAUST EMISSION CONTROL DEVICE - An exhaust emission control device is provided which can effectively regenerate a NO | 10-29-2009 |
20090272105 | APPARATUS, SYSTEM, AND METHOD FOR REDUCING NOx EMISSIONS ON AN SCR CATALYST - Various embodiments of an apparatus, system, and method are disclosed for reducing NO | 11-05-2009 |
20090288399 | Burner And Method For The Regeneration Of Filtration Cartridges And Devices Equipped With Such Burner - A burner for heating a filter cartridge for the exhaust gases of an engine until the oxidation and/or combustion of the solid particulates trapped in the cartridge, including a burner body having a closed end and, on the side opposite this closed end, an opening for removing the said gases. The burner further including at least one intake duct for a mixture of fuel and oxidiser terminating in the burner body tangentially to the burner body, so as to cause the mixture to swirl in the burner; an electrical ignition means for igniting the said mixture positioned inside the burner body; and a closure element obstructing the burner body, to limit the turbulence of the exhaust gases in the volume of the burner body bounded by the said closure element. | 11-26-2009 |
20090313976 | Method of Storing and Delivering Ammonia and the Use of Electromagnetic Radiation for Desorption of Ammonia from a Chemical Complex - A method of storing and delivering ammonia and the use of electromagnetic radiation for desorption of ammonia from a chemical complex. Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NO | 12-24-2009 |
20100018190 | PARTICULATE FILTER REGENERATING SYSTEM - Disclosed is a particulate filter regenerating system which comprises a fuel injection device ( | 01-28-2010 |
20100024402 | Feeding Arrangement for a Liquid Additive for an Internal-Combustion-Engine - An arrangement is provided for feeding a liquid additive from a receptacle into a fuel pipe or into an exhaust line of an internal-combustion engine of a motor vehicle. The receptacle is fillable with additive from a larger storage tank that is also accommodated in the motor vehicle by way of a connection line that can be blocked by a shut-off element. A pump is installed in the receptacle or in the connection line. A heating device for heating at least a partial volume of the additive is present in the receptacle. A blockable return line branches off into the receptacle from the connection line between the pump and the shut-off element. | 02-04-2010 |
20100024403 | High Density Storage of Ammonia - A solid ammonia storage and delivery material comprising an ammonia absorbing/desorbing solid material, said storage and delivery material having been compacted to a density above 50% of the theoretic skeleton density provides a solid ammonia storage material which is easy to produce and handle and has a very high density of stored ammonia which is readily released under controlled conditions even though the porosity of the material is very low, and which storage material is safe for storage and transport of ammonia without special safety measures. | 02-04-2010 |
20100031643 | AIR SYSTEM INCLUDING A VARIABLE GEOMETRY TURBOCHARGER FOR SUPPLYING AIR TO A REGENERATION SYSTEM - A system for supplying air to a regeneration system associated with an engine is disclosed. The system may include an engine including an intake manifold and an exhaust manifold. The system may also include a variable geometry turbocharger including a turbine and a compressor, the turbine in fluid communication with the exhaust manifold and the compressor in fluid communication with the intake manifold. A regeneration system may be associated with the engine, the regeneration system including a fuel injector and an air inlet, the compressor in fluid communication with the air inlet of the regeneration system. | 02-11-2010 |
20100031644 | Mounting assembly for emissions control system - An exhaust system is disclosed. The exhaust system may have an emissions control system including a mount and at least one exhaust treatment device secured to the mount. The exhaust system may also have a mounting assembly including a platform and a base frame. The emissions control system may be secured to the platform. The mounting assembly may be configured to position the emissions control system substantially adjacent to a power source. The platform may be movable relative to the base frame between a first position and a second position. | 02-11-2010 |
20100037599 | Exhaust purification device of internal combustion engine - In an internal combustion engine, an NO | 02-18-2010 |
20100043411 | Iron-Containing Polymer Suitable for Regenerating Diesel Exhaust Particulate Traps - An iron-containing polymer is provided for use as a fuel additive for promoting trap regeneration. The polymer shows a beneficial balance of physical properties, and is prepared from iron salts by a polymerisation process involving base addition, and subsequent coordination of branched-chain polycarboxylate ligands. The polymer can be stored in highly concentrate form, and shows particular suitability for on board dosing systems. | 02-25-2010 |
20100050615 | Efficient Release of Ammonia from a Solid Ammonia Storage Medium - Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NO | 03-04-2010 |
20100064670 | Reductant Supply System for a Waste Gas Cleaning Catalyst and a Heating Unit Therefor - The invention relates to a reductant supply system for a waste gas cleaning catalyst of an internal combustion engine, in particular of a vehicle, comprising a reductant tank ( | 03-18-2010 |
20100064671 | METHOD AND DEVICE FOR EVAPORATING A FLUID - A method and device for evaporating a predeterminable volume of fluid includes successive addition of partial volumes of the predeterminable volume to a supply line at different adding rates, at least partially evaporating the partial volumes forming vapor film between them and a supply line wall, conveying the partial volumes through the supply line to an evaporator surface, and applying the partial volumes to an evaporator surface region varying as a function of mass and/or volume adding rate of the partial volume, permitting effective evaporation of fluid, particularly urea/water solution. Utilization of the highest possible proportion of evaporator surfaces is achieved by mass and/or volume addition rate-dependent distribution of impingement surfaces on the evaporator surface. This heating strategy in the supply line region ensures the Leidenfrost effect when individual partial volumes are added. As even a distribution as possible is achieved using a corresponding geometrical configuration of the evaporator channel. | 03-18-2010 |
20100071354 | Engine Particulate Filter Regeneration - A particulate filter regeneration system is provided. In an example, the particulate filter regeneration system may be provided for use in an exhaust stream of an engine for filtering particulate. The particulate filter regeneration system may include an exhaust inlet, an exhaust chamber coupled downstream of the exhaust inlet, an exhaust outlet, and a flow-through wall coupled between the exhaust chamber and the exhaust outlet. The particulate filter regeneration system may further include a heater for heating the particulate filter regeneration system to enable particulate combustion and a bypass coupled to the exhaust chamber for selectively opening a filter regeneration pathway to remove accumulated particulate. | 03-25-2010 |
20100077737 | System for Reducing NOx in Exhaust - Systems and methods are provided for reducing NOx emissions from a vehicle including an engine having an exhaust. One example system comprises a NOx reducing system coupled to the engine exhaust, said NOx reducing system including a catalytic unit, said catalytic unit including a first zeolite catalyst with a first NOx conversion performance in a first temperature range and a second NOx conversion performance, lower than said first NOx conversion performance, in a second temperature range. The catalytic unit also comprises a second zeolite catalyst with a third NOx conversion performance, lower than said first NOx conversion performance, in the first temperature range and a fourth NOx conversion performance, higher than said second and third NOx conversion performances in the second temperature range, said first temperature range being higher than said second temperature range. The system further includes a controller configured to adjust an amount of reducing agent added to the NOx reducing system responsive to a temperature of the catalytic unit. | 04-01-2010 |
20100083641 | System and Method of LIquid Injection into a Gas Stream - A system for use in injection of a liquid reductant into an exhaust gas ( | 04-08-2010 |
20100089042 | TWO-STAGE REGENERATION OF DIESEL PARTICULATE FILTER - In accordance with exemplary embodiments, the present invention relates to systems and methods for regeneration of a filter, particularly a diesel particulate filter. In one exemplary embodiment, a method of regeneration of a particulate matter filter is provided. The method includes providing a heat source for regeneration of a particulate matter filter. The heat source is disposed proximate or upstream from the particulate matter filter. The method also includes activating the heat source to generate a first temperature profile of the heat source, the first temperature profile including a first temperature average. The method further includes increasing the temperature of the heat source to generate a second temperature profile of the heat source, the second temperature profile including a second temperature average, wherein the second temperature average is greater than the first temperature average. | 04-15-2010 |
20100095657 | ELECTRICALLY HEATED DIESEL PARTICULATE FILTER (DPF) - A diesel particulate filter assembly includes a diesel particulate filter (DPF) and an electric heater that is integrally formed at an upstream end of the DPF. The electric heater includes a heating substrate and a resistive heating element. The heating substrate includes a central region and a boundary region around the central region. The resistive heating element includes a plurality of conductive portions. Adjacent ones of the conductive portions in the central region form a first spacing. Adjacent ones of the conductive portions in the boundary region form a second spacing. The second spacing is smaller than the first spacing. | 04-22-2010 |
20100107612 | EXHAUST PURIFICATION APPARATUS FOR AN ENGINE - An exhaust purification apparatus for an engine has a first casing ( | 05-06-2010 |
20100132341 | Power system - The present disclose is directed to a power system. The power system may include a power source that creates a flow of exhaust. The power system may further include a particulate collection device that receives the flow of exhaust. The power system may also include an additive injector located downstream of the power source, the additive injector may be configured to provide a controlled supply of additive to the flow of exhaust. | 06-03-2010 |
20100139256 | METHOD FOR REPLACING CATALYSTS AND PARTICULATE FILTERS - Method of replacing catalysts, particulate filters, retrofit of such components and similar,’ in all of their variants, which foresees a step of removing the spent catalyst ( | 06-10-2010 |
20100146947 | EMISSIONS CONTROL SYSTEM AND METHOD - A system comprising a fuel converter comprising a catalyst composition capable of converting a fuel into a selected one or both of a syngas reductant and a short chain hydrocarbon reductant, wherein the catalyst composition comprises: cracking sites that perform a cracking function when a temperature of an exhaust fluid is greater than a predetermined threshold temperature, wherein the cracking function converts long chain hydrocarbon molecules to short chain hydrocarbon molecules; and partial oxidation sites that perform a catalytic partial oxidation function when the temperature of the exhaust fluid is less than the predetermined threshold temperature, wherein the catalytic partial oxidation function oxidizes the fuel to produce the syngas reductant; and a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter and the exhaust fluid. | 06-17-2010 |
20100146948 | Exhaust system promoting decomposition of reductants into gaseous products - An engine exhaust treatment system. The treatment system includes and a reductant injector adapted to deliver a reductant composition into an exhaust stream moving along an exhaust flow path. A selective catalytic reduction device is disposed downstream from the reductant injector. The selective catalytic reduction device is adapted to reduce an amount of NOx in exhaust gases produced by an engine by reaction of the NOx with ammonia. A basic and/or amphoteric oxide contact surface is disposed along the exhaust flow path. | 06-17-2010 |
20100154391 | REGENERATION OF SULFUR SORBENTS - Exemplary embodiments of the present invention relate to a fuel filter, system, and method for reduction, manipulation and/or distribution of sulfur containing compounds in a fuel stream of an internal combustion engine. In one exemplary embodiment of the present invention, a method of removing sulfur containing compounds from a fuel stream of an internal combustion engine is provided. The method includes removing sulfur containing compounds from a fuel stream by passing fuel through a fuel filter capable of removing sulfur containing compounds. The method also includes storing the sulfur containing compounds in the fuel filter and releasing portions of the stored sulfur containing compounds into the fuel stream at predetermined intervals of a regeneration cycle of an emission control device. | 06-24-2010 |
20100162690 | UREA TANK WITH CLOSURE MEMBER FOR VEHICLE EXHAUST SYSTEM - A closure member for a urea tank used to provide urea to an exhaust treatment system of a vehicle comprises a closure member body defining respective urea inlet and outlet passages and coolant inlet and outlet passages therethrough. A valve carried by the closure member body, and a portion of the valve can be an integral one piece part of the closure member body, selectively blocks the flow coolant through the interior of the urea tank. When coolant flows into the tank, it is separated from urea in the tank by a recirculating conduit which returns the coolant from the coolant inlet passage to the coolant outlet passage. Coolant circulating within the tank heats urea therein. The coolant flow valve can comprise a solenoid controlled valve with an electrical connector carried by the coolant tank for making connections to wiring that provides power to the solenoid to control the valve. The closure member can also carry a support, such as a downtube, that can contain temperature and level sensing components with the closure member supporting a connector coupled to wiring for such components. | 07-01-2010 |
20100170229 | EXHAUST GAS SYSTEM FOR A MOTOR VEHICLE - An exhaust-gas system for a motor vehicle includes at least one exhaust-gas cleaning system and at least one regeneration device for the exhaust-gas cleaning system, by means of which regeneration device an oxidizable fluid in vapor form can be introduced into the exhaust-gas stream ahead of the exhaust-gas cleaning system. The regeneration device includes a housing with a chamber formed in it as well as a heating element positioned in the chamber, the housing having on its upstream side an inflow opening for exhaust gases and on its downstream side an outlet opening and being arranged in the interior of the exhaust-gas stream. | 07-08-2010 |
20100175371 | METHOD FOR REGENERATING AT LEAST ONE PARTICLE AGGLOMERATOR AND MOTOR VEHICLE INCLUDING AN EXHAUST GAS AFTER-TREATMENT SYSTEM - A method for regenerating at least one particle agglomerator of an exhaust gas after-treatment system of an internal combustion engine of a motor vehicle, includes operating the internal combustion engine in at least one operating phase in such a way that a sufficient portion of nitrogen dioxides is directly produced in the exhaust gas in order to ensure a conversion of particles containing carbon in the at least one particle agglomerator. A motor vehicle suitable for carrying out the method is also provided. | 07-15-2010 |
20100186388 | Mounting and cooling device for emissions system electronics - A cooling device for emissions system electronics is disclosed. The cooling device may have a mount for an exhaust treatment device. The mount may have a framework comprising a plurality of rigid members. The cooling device may also have a passageway located within at least one rigid member of the plurality of rigid members. The passageway may be configured to transmit a flow of coolant. The cooling device may further have a plate coupled to the at least one rigid member and at least one electronic device coupled to the plate. The at least one electronic device may be associated with the exhaust treatment device. | 07-29-2010 |
20100186389 | Reductant Insulating System - A reductant insulating system configured to prevent a flow of reductant used by an engine's selective catalytic reduction (SCR) device from overheating. | 07-29-2010 |
20100186390 | TECHNIQUE FOR PRODUCTION OF AMMONIA ON DEMAND IN A THREE WAY CATALYST FOR A PASSIVE SELECTIVE CATALYTIC REDUCTION SYSTEM - A method for controlling a powertrain includes selectively initiating an ammonia generation cycle, including injecting fuel into a combustion chamber of an engine before a primary combustion event to a calibrated air fuel ratio in a range lean of stoichiometry based upon generation of NOx within the combustion chamber, injecting fuel into the combustion chamber after the primary combustion event based upon an overall air fuel ratio in a range rich of stoichiometry and resulting generation of molecular hydrogen, and utilizing a catalyst device between the engine and a selective catalytic reduction device to produce ammonia. | 07-29-2010 |
20100186391 | TECHNIQUE FOR PRODUCTION OF AMMONIA ON DEMAND IN A THREE WAY CATALYST FOR A PASSIVE SELECTIVE CATALYTIC REDUCTION SYSTEM - A method for controlling a powertrain includes selectively initiating an ammonia generation cycle including injecting fuel into a combustion chamber of an engine before a primary combustion event to a calibrated air fuel ratio in a range lean of stoichiometry based upon generation of NOx within the combustion chamber, injecting fuel into the powertrain after the primary combustion event based upon an overall air fuel ratio in a range rich of stoichiometry and resulting generation of molecular hydrogen, utilizing a hydrogen forming catalyst to reform the injected fuel, and utilizing a catalyst device between the engine and the selective catalytic reduction device to produce ammonia. | 07-29-2010 |
20100186392 | UREA INJECTOR NOZZLE - An injector nozzle assembly for delivering a reducing agent fluid stream into an exhaust gas stream comprises a connector having an inlet for fluidly connecting to a reducing agent fluid source. The assembly further includes a cap that is connected to a nozzle body having a frustoconical portion. The assembly also includes an injector pipe having a length along an axis and passing through an opening in the cap into and through an at least partially hollow internal volume of the nozzle body. The injector pipe has an inlet fluidly connected to the connector and an outlet fluidly connected to a spray head. The spray head includes three to four substantially radial injection orifices. The injection orifices on the spray head are substantially aligned in a horizontal plane, and only oriented generally parallel to a flow direction of the exhaust gas stream. | 07-29-2010 |
20100186393 | INJECTOR MOUNTING STRUCTURE - The present invention has its object to suppress heat transfer from an adapter | 07-29-2010 |
20100192551 | CONSTRUCTION MACHINE - A construction machine that permits an exhaust gas after-treatment device to be disposed while suppressing an increase of height. An upper surface of a hydraulic pump is positioned lower than an upper surface of an engine, a tank device having at least one of a working oil tank and a fuel tank is provided at a rear portion thereof with a small height portion which has an upper surface of a height almost equal to or smaller than the height of the upper surface of the hydraulic tank, and an exhaust gas after-treatment device is disposed at a position above both the small height portion and the hydraulic pump. | 08-05-2010 |
20100199645 | MIXING DEVICE FOR AN EXHAUST SYSTEM - A mixing device for mixing a gas and a liquid in an exhaust system has an injector for injecting the liquid, a shell, an inlet, an outlet and an exhaust gas flow path between the inlet and the outlet. The mixing device defines an axis, and the flow path has a first part, a second part and a third part. The first part extends generally parallel to the axis to direct a flow in a generally forward direction, the first part extending up to a first axial position. The second part extends generally parallel to the axis to direct flow in a generally reverse direction. The third part extends generally parallel to the axis to direct a flow in the generally forward direction. The third part is a volume that allows mixing and extends past the first axial position. | 08-12-2010 |
20100199646 | Catalytic reduction of NOx - A system for NO | 08-12-2010 |
20100223916 | EXHAUST GAS PURIFICATION DEVICE - There is provided an exhaust gas purification device for an internal combustion engine that has a turn-back portion in an exhaust gas passageway and is made compact and can cause a reducing agent to be evenly dispersed and flow into a reduction catalyst disposed in an exhaust gas passageway downstream of the turn-back portion. | 09-09-2010 |
20100223917 | OPERATING FUEL TANK - The invention relates to a reducing agent tank | 09-09-2010 |
20100229538 | Diesel particulate filter regeneration control and method - An after-treatment device that includes a diesel particulate filter (DPF) requiring periodic regeneration includes a sensor providing a signal indicative of a soot accumulation and at least one device providing an operating parameter indicative of a work mode of the machine. A controller determines a soot level and a readiness level based on the work mode of the machine, and further classifies the soot level relative to a desired range for initiating a regeneration event and initiates the regeneration event when the soot level falls within the desired range. | 09-16-2010 |
20100269491 | PARTIAL FILTER SUBSTRATES CONTAINING SCR CATALYSTS AND METHODS AND EMISSIONS TREATMENT SYSTEMS - Catalytic articles, methods and emissions treatment systems for treating an engine exhaust gas stream containing NO | 10-28-2010 |
20100275585 | SOOT PARTICLE FILTER - A soot particle filter according to the invention can be particularly used in motor vehicles or heating systems using liquid and solid fuels. The device is particularly characterized by a time controlled variable regeneration of the soot particle storage ( | 11-04-2010 |
20100293927 | METHOD AND DEVICE FOR SAFE AND CONTROLLED DELIVERY OF AMMONIA FROM A SOLID AMMONIA STORAGE MEDIUM - Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NO | 11-25-2010 |
20100293928 | Mounting Structure for NOx Reduction Device for Construction Machine - [Problem] To provide a mounting structure for an NOx reduction system for a construction machine, said mounting structure being capable of relaxing restrictions on a space for the arrangement of the NOx reduction system. | 11-25-2010 |
20100300077 | DUAL-STAGE METHOD FOR THE REACTIVATION OF THERMALLY AGED NITROGEN OXIDE STORAGE CATALYSTS - Nitrogen oxide storage catalysts are used to remove the nitrogen oxides present in the lean exhaust gas of lean-burn engines. As a result of the stress due to high temperatures in vehicle operation, they are subject to thermal aging processes which affect both the nitrogen oxide storage components and the noble metals present as catalytically active components. | 12-02-2010 |
20100307142 | SCR system and method for the purging thereof - SCR system for treating the exhaust gases of an internal combustion engine, this system comprising a line for feeding a urea solution into the exhaust gases and a pump capable both of feeding the urea solution into the exhaust gases and of purging at least one part of the line by sucking a gas therethrough by means of a suction device, this system also comprising a control unit capable of activating and/or deactivating the operation of the pump and that of the suction device in a sequential manner in the course of one and the same purge procedure. | 12-09-2010 |
20100319329 | AIRLESS THERMAL REGENERATOR OR ENHANCER WITH MIXER - A combustor comprises a fuel-fired burner for a vehicle application. In one example, the fuel-fired burner is configured to regenerate a particulate filter where the fuel-fired burner comprises one of a thermal regenerator or thermal enhancer that operates with airless fuel injection. A fuel nozzle supplies fuel to the fuel-fired burner and an igniter ignites fuel sprayed from the fuel nozzle. A mixer is positioned downstream of the fuel nozzle and upstream of the igniter and operates to reduce fuel droplet size, which improves ignition. | 12-23-2010 |
20100319330 | BURNER FOR DIESEL PARTICULATE FILTER REGENERATION - Provided is a burner using electric discharge as an ignition source such as arc or plasma rotating with flow, and more particularly, to a DPF regenerating burner that improves ignition performance of the burner by having a metal ball on a conical electrode surface where electricity is discharged, inducing accurate electric discharge through a metal ball, and supplying a fuel-air mixture toward the metal ball. The DPF regeneration burner includes a fuel-air mixture supplying unit having an injecting unit be connected to a reaction unit to supply the fuel-air mixture to the reaction unit; and a metal ball on a circumference of the electrode to ignite the injected fuel-air mixture. The DPF regenerating burner generates electric discharge in an electrode surface where a metal ball is located. The ignition performance is improved by accurately supplying a fuel-air mixture at a location where the electric discharge is generated. | 12-23-2010 |
20100326058 | WORKING MACHINE - Disclosed is a working machine capable of preventing damage to a filter due to excessive accumulation of particulate matter (PM), even under a situation that requires, prior to compulsory regeneration of the filter, moving the machine to a place in which to perform the regeneration work. | 12-30-2010 |
20110000197 | WORKING MACHINE - An exhaust gas treatment filter removes particulate matter from exhaust gas of a diesel engine. The particulate matter which accumulates on the filter is removed by a manual regeneration system that can simply be controlled. After a manual regeneration switch | 01-06-2011 |
20110005208 | METHOD OF CLEANING A CATALYTIC CONVERTER - A method of cleaning an automobile catalytic converter for an automobile engine including introducing a cleaning solution containing sodium hydroxide upstream from the catalytic converter while the automobile engine is running. | 01-13-2011 |
20110005209 | AMMONIA STORAGE SET-POINT CONTROL FOR SELECTIVE CATALYTIC REDUCTION APPLICATIONS - A system includes an injector control module and an SCR optimization module. The injector control module controls an amount of ammonia (NH | 01-13-2011 |
20110005210 | TANK ASSEMBLY - A tank assembly ( | 01-13-2011 |
20110011064 | Engine Powered Machine - An engine powered machine is provided with a high-performance exhaust gas purification system and is capable of promptly raising a temperature of an operator's cab to a comfortable temperature. The exhaust gas purification system that makes use of an NOx removal catalyst and a reducing agent is provided with a reducing agent heater for heating a reducing agent, which is stored in a reducing agent tank, with heat of an engine cooling medium and an on/off device for controlling an introduction of the engine cooling medium into the reducing agent heater. When a temperature of the engine cooling medium is higher than a first predetermined temperature, a temperature of the reducing agent in the tank is lower than a second predetermined temperature and a temperature in an operator's cab is lower than a third predetermined temperature, a controller switches the on/off device into a dosed state to increase a flow rate of the engine cooling medium to be guided to a heat exchanger of a heating apparatus. | 01-20-2011 |
20110011065 | HIGH-EFFICIENCY SCR CATALYTIC CONVERTER - A method and a device for selectively purifying the exhaust gas of an internal combustion engine using a selective catalytic reduction (SCR) catalytic converter ( | 01-20-2011 |
20110011066 | Exhaust Gas After-Treatment System - An exhaust gas after-treatment system includes an oxidation catalytic converter, a carbon-particulate filter, a device for burning off carbon-particulate matter within the carbon-particulate filter, and an exhaust gas cooling unit downstream of the filter for reducing the exhaust gas temperature in the exhaust gas flow. In order to reduce the fuel consumption overall, the device cooling unit can be deactivated. | 01-20-2011 |
20110016852 | DELIVERY MODULE FOR SELECTIVE CATALYTIC REDUCTION - The invention relates to a delivery module for a dosage system used to introduce a reducing agent into the exhaust gas tract of an internal combustion engine. The delivery module has a housing, which accommodates various components, and which is produced as an injection moulded component. A heating system is integrated in the vicinity of the center of the housing. The housing has at least one chamber for receiving additional components. | 01-27-2011 |
20110016853 | SCR system for purifying exhaust gases in NOx - SCR system comprising a tank for storing an additive, an injector, a pump for conveying the additive from the tank to the injector via an injection line, a primary filter located on the injection line between the tank and the pump and a secondary filter also located on the injection line but between the pump and the injector, said system further comprising a particle trap located between both filters. | 01-27-2011 |
20110041484 | EVAPORATION UNIT FOR PRODUCING GASEOUS AMMONIA AND DEVICE AND MOTOR VEHICLE HAVING AN EVAPORATION UNIT - An evaporation unit for producing a gas flow including ammonia, in particular in connection with an SCR system in motor vehicles, includes at least a housing, at least one meandering flow channel delimited by a closed wall and having an inlet and an outlet and at least one heat conductor disposed in a first evaporation section of the at least one flow channel coaxially between the housing and the wall. A device and a motor vehicle having the evaporation unit are also provided. | 02-24-2011 |
20110047988 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising a first catalytic material disposed on a metal inorganic support; wherein the metal inorganic support has pores; and at least one promoting metal. The catalyst system further comprises a second catalytic composition comprising, (i) a zeolite, or (ii) a first catalytic material disposed on a first substrate, the first catalytic material comprising an element selected from the group consisting of tungsten, titanium, and vanadium. The catalyst system may further comprise a third catalytic composition. The catalyst system may further comprise a delivery system configured to deliver a reductant and optionally a co-reductant. A catalyst system comprising a first catalytic composition, the second catalytic composition, and the third catalytic composition is also provided. An exhaust system comprising the catalyst systems described herein is also provided. | 03-03-2011 |
20110056191 | Exhaust Gas Purification Device - An exhaust gas purification device | 03-10-2011 |
20110072805 | ELECTRICALLY HEATED DIESEL OXIDATION CATALYST - An exhaust gas aftertreatment system ( | 03-31-2011 |
20110079001 | EXHAUST PURIFYING DEVICE OF INTERNAL COMBUSTION ENGINE - An upstream catalyst and a downstream catalyst are arranged in series and are housed in a common casing disposed in an engine exhaust passage. The upstream catalyst including a NOx storage-reduction catalyst that adsorbs NOx contained in incoming exhaust gas when the air-fuel ratio of the incoming exhaust gas is lean, and releases and reduces the adsorbed NOx when the air-fuel ratio of the incoming exhaust gas becomes rich, and the downstream catalyst includes a three-way catalyst. The upstream catalyst has a higher oxidizing capability than the downstream catalyst, and the downstream catalyst has a higher reducing capability than the upstream catalyst. The upstream catalyst has a multi-layer structure including an upper layer and a lower layer, and is prepared such that the upper layer has a higher oxidizing capability than the lower layer, and the lower layer has a higher reducing capability than the upper layer. | 04-07-2011 |
20110083428 | SCR MIXER - A device and method for catalytic reduction of NOx in gaseous products of combustion by directing the products of combustion through a particulate filter ( | 04-14-2011 |
20110088375 | EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber ( | 04-21-2011 |
20110094210 | EXHAUST GAS PURIFICATION APPARATUS FOR A DIESEL ENGINE - An exhaust gas purification apparatus for a diesel engine mounted on a vehicle includes a regenerative diesel particulate filter, an accumulated amount detector, an exhaust gas temperature raising unit, and a forcible regeneration control unit. The forcible regeneration control unit measures an automatic regeneration enable time in which an automatic regeneration condition for regenerating the filter is satisfied when the diesel engine is operating, determines from the automatic regeneration enable time whether the probability is high in which a regeneration will be completed without being interrupted when the automatic regeneration condition is continuously satisfied, performs automatic regeneration when determining that the probability of regeneration being completed is high. | 04-28-2011 |
20110107743 | Nozzle Diffuser Mixer - A diffuser for aiding in the vaporization and mixing of an injected reactant with the exhaust gas feed stream of an exhaust gas aftertreatment system is disclosed. The diffuser is disposed within an exhaust gas conduit of the exhaust gas aftertreatment system and has an impingement surface and a baffle plate disposed downstream of and adjacent thereto. The baffle plate extends outwardly from the diffuser, to terminate at a baffle plate tip that is located intermediate of the diffuser and an inner wall of the exhaust gas conduit. The baffle plate is operable to trap a portion of an exhaust gas feed stream, and a reactant resident therein, to increase the vaporization and residence time of the reactant in the exhaust gas feed stream. | 05-12-2011 |
20110107744 | Apparatus for Maintaining a Urea Solution in a Liquid State for Treatment of Diesel Exhaust - A system for keeping a reservoir solution of urea in a liquid state at normally sub-freezing temperatures comprising a reservoir tank module having a heater and disposed in a solution storage tank. Solution in the storage tank is heated by passage of heat through the walls of the reservoir tank module which are formed of a hybrid of plastic polymer and metal, preferably a urea-resistant stainless steel, such that the thermal conductivity of the walls is sufficient to liquefy frozen solution in the storage tank in a practical time frame at an acceptable net manufacturing cost for the tank module. The hybrid combination may be formed in any of various arrangements such as, but not limited to, a lower portion formed of metal and an upper portion formed of plastic, or alternating bands and/or strips of metal and plastic. The optimum thicknesses of metal and plastic may be determined conventionally. | 05-12-2011 |
20110113758 | EXHAUST LINE WITH REAGENT INJECTOR - An exhaust line includes: a duct ( | 05-19-2011 |
20110113759 | DEVICE FOR THE AFTERTREATMENT OF EXHAUST GASES OF INTERNAL COMBUSTION ENGINES - A device for the aftertreatment of exhaust gases in an exhaust gas system of internal combustion engines, having at least one reductant decomposition catalyst. Arranged in the exhaust gas flow, and a metering device arranged upstream of the latter in an exhaust gas line for supplying reductant. Preferably at least one other catalyst device is provided downstream of the reductant decomposition catalyst. An inlet section for the exhaust gas having at least one flow deflection area is arranged upstream of the reductant decomposition catalyst and constructed for the exhaust gas to be fed into a housing radially outside an inlet pipe adjoining the reductant decomposition catalyst that encloses the inlet pipe, and is guided in counterflow through a front inlet opening of the inlet pipe to the reductant decomposition catalyst. The reductant is fed into the flow deflection area associated with the inlet opening. | 05-19-2011 |
20110120100 | CATALYST AND METHOD OF MANUFACTURE - A catalyst system comprising a first catalytic composition comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support. The pores of the solid mixture have an average diameter in a range of about 1 nanometer to about 15 nanometers. The catalytic metal comprises nanocrystals. | 05-26-2011 |
20110131959 | EXHAUST SYSTEM MIXING DEVICE - A mixing device comprises a circular disc of fin sections positioned so as to create openings in the inner and outer regions of the mixing device that generate oppositely rotating flows of exhaust gas. Each fin section may be identical, and may be created by a stamping process. The smooth surface of each fin section reduces creases, and thus, is less prone to urea buildup. | 06-09-2011 |
20110138787 | LIQUID REDUCTANT DOSING RESERVOIR AND METHOD FOR ITS MANUFACTURE - A liquid reductant dosing reservoir for a combustion exhaust treatment system is disclosed comprising:
| 06-16-2011 |
20110146248 | Radial mounting for regeneration device - An exhaust treatment system for machine is disclosed that includes a burner body having an inlet for receiving a flow of exhaust, an outlet for the exhaust flow to exit, an opening and a receiving mount disposed around the opening. A fuel injector head is mounted over the opening in any one of a plurality of angular positions relative to the body. The burner body includes a plurality of mounting pads extending at least partially and circumferentially around the burner body for coupling a support bracket to the burner body in any one of a plurality of positions relative to the burner body. The support bracket may be used to couple the burner to a fixture device such as a cradle for supporting other exhaust treatment system components. | 06-23-2011 |
20110146249 | DEVICE FOR INJECTING AQUEOUS ADDITIVES IN A MOTOR VEHICLE EXHAUST PIPE - This invention relates to a device for injecting aqueous additives into an exhaust pipe of a motor vehicle, including an additive tank and a pumping module for taking the additive and directing it toward the exhaust pipe, characterized in that the pumping module includes a rotary electric pump ( | 06-23-2011 |
20110162351 | EXHAUST GAS PURIFICATION APPARATUS FOR ENGINE - In an exhaust gas purification apparatus for an engine includes a bubble generation device, the bubble generation device for mixing nano-sized to micro-sized bubbles into a liquid reducing agent or a precursor thereof injection-supplied from an injection nozzle is disposed in a reducing agent supply system running from a reducing agent tank to the injection nozzle. When the liquid reducing agent or the precursor thereof is injection-supplied from the injection nozzle, the liquid reducing agent or the precursor thereof is divided by bubbles, and the bubbles are radically inflated and burst by a pressure change and a temperature change at the time of injection-supplying, so that microparticulation of the liquid reducing agent or the precursor thereof is facilitated. | 07-07-2011 |
20110179776 | Tank for Working Fluids of Motor Vehicles - The invention relates to a tank for working fluids of motor vehicles, comprising a metal wall, at least one opening therein, and a plastic coating on the inside of the metal wall, wherein the plastic coating extends through the opening at least to the level of the outside of the metal wall. | 07-28-2011 |
20110185709 | Low Temperature Diesel Particulate Matter Reduction System - A system for treating diesel exhaust is disclosed. The system includes a first filter including layers of filtration material positioned between layers of corrugated metallic foil. The metallic foil defines a honeycomb arrangement of longitudinal passageways from an upstream end to a downstream end and also openings for allowing exhaust to pass between adjacent longitudinal passageways of the metallic foil. The filtration material is positioned such that exhaust between the adjacent longitudinal passageways passes through the filtration material. The metallic foil also includes flow diverting structures to divert flow within the longitudinal passageways through the openings. A second filter is positioned downstream from the first filter. The second filter defines a honeycomb arrangement of longitudinal passageways. The longitudinal passages are selectively plugged adjacent upstream and downstream ends to force flow radially through walls between the longitudinal passages of the second filter. | 08-04-2011 |
20110192150 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - In an exhaust gas purification apparatus for an internal combustion engine, reducing agent is diffused and the exhaust resistance is made small. The apparatus includes a reducing agent addition valve that injects reducing agent, a reducing agent addition valve mount portion that has a space in which the reducing agent addition valve injects the reducing agent outside a stream of exhaust gas flowing in an exhaust passage of an internal combustion engine and on which the reducing agent addition valve is mounted, and an impingement portion that is provided in the reducing agent addition valve mount portion and on which the reducing agent injected through the reducing agent addition valve impinges, wherein the direction of injection of the reducing agent from the reducing agent addition valve is oriented toward the impingement portion, and toward downstream of the reducing agent addition valve with respect to the exhaust gas flow. | 08-11-2011 |
20110192151 | Metering System for Injecting a Reducing Agent into the Exhaust Gas Flow of an Internal Combustion Engine - The invention relates to a reducing agent metering system for injecting a reducing agent into the exhaust gas flow of an internal combustion engine for selective catalytic reduction, the metering system being connected/connectable to a reducing agent tank from which reducing agent is taken and conveyed by means of a metering pump ( | 08-11-2011 |
20110209464 | BREATHER DEVICE, LIQUID TANK, AND EXHAUST GAS PURIFYING APPARATUS TO BE ADAPTED FOR ENGINE - A breather device A | 09-01-2011 |
20110225957 | METHOD FOR REGENERATING AN OPEN PARTICLE SEPARATOR AND MOTOR VEHICLE HAVING AT LEAST ONE OPEN PARTICLE SEPARATOR - A method for regenerating an open particle separator includes at least determining at least one parameter, as a characteristic variable of a regeneration capability of the open particle separator. The at least one parameter is compared with a first threshold value. At least one portion of a comparison period during which the parameter has reached the first threshold value is determined. The portion is compared with a first minimum portion corresponding to a minimum regeneration time in the comparison time period. Measures are initiated to influence the parameter so that the parameter lies at least according to the first minimum portion and the first threshold value is reached and/or the open particle separator is regenerated. A motor vehicle having at least one open particle separator is also provided. | 09-22-2011 |
20110232271 | RESERVOIR FOR ACCOMMODATING AN AQUEOUS SOLUTION - The invention relates to a dosing system ( | 09-29-2011 |
20110239631 | Ring Reductant Mixer - An engine exhaust aftertreatment system including a ring disposed in an exhaust conduit. The ring assists in the introduction and conversion of a reductant introduced by an injector. | 10-06-2011 |
20110239632 | EXHAUST EMISSION PURIFYING APPARATUS FOR ENGINE - In order to maintain a high NOx purification rate of a NOx reduction catalytic converter even in the case in which an NOx emission amount from an engine changes suddenly, in an exhaust emission purifying apparatus for an engine that reduces and purifies NOx in exhaust gas using ammonia generated from an injection-supplied urea aqueous solution, after engine starting, when an exhaust temperature exceeds a predetermined temperature T (step S | 10-06-2011 |
20110239633 | EXHAUST EMISSION PURIFYING APPARATUS - The present invention provides an exhaust emission purifying apparatus. In the exhaust emission purifying apparatus, while an ammonia adsorbent is coated on a predetermined length portion on the exhaust inflow side of a carrier of a catalytic converter which reduces and purifies NOx in exhaust gas, a NOx reduction catalyst is coated on the remaining portion on the exhaust outflow side of the carrier of the catalytic converter. On the other hand, a first layer containing the ammonia adsorbent and the NOx reduction catalyst in a mixed state and a second layer containing a hydrolysis catalyst are coated in that order on a carrier surface of the catalytic converter. In a transition of an engine operation state, NOx is reduced and purified with the use of ammonia adsorbed to the ammonia adsorbent. | 10-06-2011 |
20110252771 | FLUE GAS PURIFYING DEVICE - An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by including: an exhaust pipe that guides flue gas discharged from an internal combustion engine; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalyst unit that includes a urea SCR catalyst that promotes a reaction between ammonia produced from injected urea water and nitrogen oxides and a support mechanism arranged inside of the exhaust pipe on a downstream side to a position where urea water is injected in a flow direction of the flue gas to support the urea SCR catalyst; an ammonia-concentration measuring unit that measures an ammonia concentration in flue gas at a measurement position in a region where the SCR catalyst is arranged; and an injection control unit that controls injection of urea water based on a measurement result acquired by the ammonia-concentration measuring unit. | 10-20-2011 |
20110252772 | DEVICE FOR PURIFYING EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE - To homogeneously diffuse, in the exhaust gas, an additive that is fed into a device for purifying exhaust gas of an internal combustion engine. An upstream device for purifying exhaust gas and a downstream device for purifying exhaust gas are connected together through an exhaust pipe having a sectional area smaller than that of the upstream device for purifying exhaust gas and that of the downstream device for purifying exhaust gas, a connection passage portion is provided to connect the exhaust outlet of a catalyst in the upstream device for purifying exhaust gas to the exhaust pipe, the connection passage portion being so formed that the center axis of the upstream device for purifying exhaust gas in the direction in which the exhaust gas flows is not aligned with the center axis of the exhaust pipe in the direction in which the exhaust gas flows, injection means is arranged in the connection passage portion to inject the additive into the exhaust passage so that the additive arrives at the opposing wall surface of the connection passage portion. | 10-20-2011 |
20110258991 | SELECTIVE CATALYST REDUCTION SYSTEM WITH BYPASS SYSTEM - 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 NH | 10-27-2011 |
20110265462 | DIESEL ENGINE - An object is to provide a diesel engine ( | 11-03-2011 |
20110271662 | COMPACT REDUCTION AGENT DOSER FOR USE IN AN SCR SYSTEM OF AN INTERNAL COMBUSTION ENGINE - An SCR system for use with an IC engine includes a reduction agent doser and a catalytic reactor. The reduction agent doser includes a tubular housing with an inside diameter. A target plate is positioned crosswise in the housing and terminates at a distance from the inside diameter of the housing. The target plate directs a flow of exhaust gas in a radially outward direction. A baffle is positioned crosswise in the housing downstream from the target plate. The baffle terminates at the inside diameter of the housing and includes a center opening for directing a flow of exhaust gas in a radially inward direction. A diffuser plate is located downstream from the baffle. The diffuser plate terminates at the inside diameter of the housing. A catalytic reactor is directly coupled with a downstream side of the reduction agent doser. | 11-10-2011 |
20110271663 | EXHAUST PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINES - An exhaust purifying device for an internal combustion engine which can restrict an influence of a measurement error in a NOx sensor provided at the downstream side of a catalyst and can optimally maintain a NOx purifying rate. The device includes a catalytic converter carrying a selective catalytic reduction catalyst provided in an exhaust passage of the engine to selectively reduce nitrogen oxides, a urea water adding valve for adding urea water to the catalyst as a reducing agent, a NOx sensor provided at the downstream side of the catalyst, and an ECU for adjusting an addition amount of the urea water adding valve based upon output of the NOx sensor, wherein a urea water addition amount adjusting process is executed under a condition that a NOx amount to be generated in the engine increases. | 11-10-2011 |
20110283686 | MIXER AND EXHAUST SYSTEM - A static mixer for the through-mixing of a flow in a line conducting the flow, more preferably of an exhaust system of a combustion engine with several guide vanes. To create adequate through-mixing at low flow velocity and a through-flow resistance that is not too high at high flow velocity, the guide vanes are produced of a shape memory alloy wherein below a predetermined limit temperature the guide vanes have at least one low-temperature shape and above the limit temperature the guide vanes have at least one high-temperature shape, which differs from the low-temperature shape through a reduced through-flow resistance of the mixer. | 11-24-2011 |
20110308234 | DOSING AND MIXING ARRANGEMENT FOR USE IN EXHAUST AFTERTREATMENT - A dosing and mixing arrangement is disclosed herein. The arrangement includes a mixing tube having a constant diameter along its length. At least a first portion of the mixing tube includes a plurality of apertures. The arrangement also includes a swirl structure for causing exhaust flow to swirl outside of the first portion of the mixing tube in one direction along a flow path that extends at least 270 degrees around a central axis of the mixing tube. The arrangement is configured such that the exhaust enters an interior of the mixing tube through the apertures as the exhaust swirls along the flow path. The exhaust entering the interior of the mixing tube through the apertures has a tangential component that causes the exhaust to swirl around the central axis within the interior of the mixing tube. The arrangement also includes a doser for dispensing a reactant into the interior of the mixing tube. | 12-22-2011 |
20120017573 | EXHAUST TREATMENT DEVICE OF DIESEL ENGINE - An object of the present invention is to provide the exhaust treatment device of a diesel engine which is capable of prohibiting the execution of DPF regenerating processing in a situation in which the DPF regenerating processing is inappropriate. | 01-26-2012 |
20120023914 | Exhaust Purification Apparatus - Disclosed is an exhaust purification apparatus which comprises: a first processing unit ( | 02-02-2012 |
20120031081 | Method and apparatus for reducing harmful emissions from combustion - The preferred embodiment of the present invention comprises a combustion engine that combines unburned fuel elements in a pulsating engine exhaust stream into a catalytic converter resulting in reduced nitrous oxide and carbon monoxide emissions over an extended life of the catalytic converter. | 02-09-2012 |
20120031082 | INTEGRATED HEATER ASSEMBLY FOR A TANK, METHODS FOR INSTALLING AND MANUFACTURING SUCH AN ASSEMBLYAND A VEHICLE INLUDING SUCH A HEATER ASSEMBLY - An integrated heater assembly ( | 02-09-2012 |
20120060483 | Agricultural Machine - An agricultural machine has an internal combustion engine, a particulate filter disposed in an exhaust-system branch of the internal combustion engine, and an engine control unit designed to control the internal combustion engine in a regeneration phase in such a manner that a temperature is reached in the particulate filter that is required for the regeneration thereof, and to abort an on-going regeneration if at least one operating parameter of the machine that influences the regeneration deviates from a setpoint value. A control device of the machine is provided to predict a time period in which it is likely possible to hold the operating parameter to the setpoint value thereof, and to start regeneration when this time period begins. | 03-15-2012 |
20120067032 | PARTICULATE FILTER REGENERATION - A power system, including a multi-cylinder air breathing, fuel consuming diesel engine having a manifold with a common inlet for distributing combustion air to a plurality of cylinders. A valve is positioned in the intake manifold to at least restrict air flow to a group of the cylinders of the engine less than the total number of cylinders so as to increase the load and increase the temperature of exhaust gas for facilitating regeneration of a particulate filter. | 03-22-2012 |
20120073271 | AIR ENTRAINMENT COMPONENT FOR VEHICLE EXHAUST SYSTEM - A vehicle exhaust system includes an air entrainment component that is used to reduce exhaust gas temperatures exiting the vehicle exhaust system. The air entrainment component includes an exhaust pipe with a non-circular cross-section at one end and an overlap tube that substantially surrounds the non-circular cross-section to form an air gap between the exhaust pipe and the overlap tube. Cooling external air is drawn into the air gap to cool heated exhaust gases within the exhaust pipe. | 03-29-2012 |
20120073272 | MIXING SYSTEM IN AN EXHAUST GAS MIXING CHAMBER - The mixing system includes a mixing chamber in which exhaust gases can flow in a flow direction, a nozzle designed to inject a fluid inside the mixing chamber, according to an injection direction, and an evaporating device positioned inside the mixing chamber, downstream from the injection inlet. The nozzle and the evaporating device are movable one with respect to the other, so that a substantial portion of the flow of the fluid injected into the mixing chamber hits the evaporating device regardless of the flow rate of the exhaust gases. | 03-29-2012 |
20120085085 | FLUID DOSING DEVICE - A mounting arrangement for attaching a pump arrangement to an exhaust pipe at a boss includes a delivery nozzle section and a remaining section including a pump body. The mounting arrangement includes a packing for supporting the pump body at the remaining section of the pump arrangement. | 04-12-2012 |
20120096840 | BURNER APPARATUS - The present invention is a burner apparatus (S | 04-26-2012 |
20120096841 | EXHAUST DEVICE OF INTERNAL-COMBUSTION ENGINE - An exhaust device of an internal-combustion engine provided with a catalytic converter ( | 04-26-2012 |
20120102928 | ENCAPSULATED EXHAUST GAS AFTERTREATMENT UNIT - An exhaust gas aftertreatment unit ( | 05-03-2012 |
20120110986 | DEVICE FOR EVAPORATING A UREA-WATER SOLUTION, METHOD FOR OPERATING THE DEVICE AND MOTOR VEHICLE - A device for evaporating a urea-water solution includes a delivery duct for the urea-water solution. The delivery duct extends through at least a first zone and a second zone for the introduction of heat energy. The zones can be heated separately from one another and, in the second zone, the delivery duct initially has a meandering course in a second inlet region, and thereafter has a rectilinear course. A method for evaporating a urea-water solution includes pre-heating the urea-water solution in the first zone to a temperature in a range from 100° C. to 150° C. and evaporating the urea-water solution in the second zone at a temperature in a range from 420° C. to 490° C. In particular, this significantly reduces the tendency for such an exhaust-gas-external evaporator for a urea-water solution to become blocked. A motor vehicle is also provided. | 05-10-2012 |
20120117952 | EXTRUDED SCR FILTER - A wall-flow filter comprises a catalyst for converting oxides of nitrogen in the presence of a reducing agent, which wall-flow filter comprising an extruded solid body comprising: 10-95% by weight of at least one binder/matrix component; 5-90% by weight of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% by weight optionally stabilised ceria, which catalyst comprising at least one metal, wherein: the at least one metal is present throughout the extruded solid body alone or in combination with: is also present in a higher concentration at a surface of the extruded solid body; is also carried in one or more coating layer(s) on a surface of the extruded solid body; or both. | 05-17-2012 |
20120131910 | INJECTION SYSTEM FOR INJECTING FLUID INTO AN EXHAUST TRACT - The invention relates to an injection system for injecting a fluid into a filter provided in an exhaust system, comprising at least two modules and at least one pressure compensation volume ( | 05-31-2012 |
20120144809 | CATALYTIC CONVERTER MODULE - A catalytic converter module ( | 06-14-2012 |
20120174566 | CONSTRUCTION MACHINE - A construction machine including an engine, a fuel tank, and a liquid reductant tank. The construction machine further includes a tank cover, and the fuel tank has an upper surface including a high-position surface and a low-position surface located at a lower position than the high-position surface and adjacent to the high-position surface through a step. The tank cover is provided over the low-position surface and at a height position approximately equal to that of the high-position surface to define a liquid reductant tank installation space in cooperation with the low-position surface. The liquid reductant tank has a replenishment port, installed in the liquid reductant tank installation space so that the replenishment port is close to a lower surface of the tank cover. | 07-12-2012 |
20120198823 | EXHAUST SYSTEM HAVING THERMALLY CONDUCTIVE DOSING CHANNEL - An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage, a reduction catalyst disposed within the exhaust passage, and an injection device configured to inject reductant into the exhaust passage upstream of the reduction catalyst. The exhaust system may also have a dosing channel forming a portion of the exhaust passage. The dosing channel may have a thermal conductivity different than adjacent upstream and downstream portions of the exhaust passage and extend a distance upstream of the injection device sufficient to transfer enough heat to an extension of the dosing channel downstream of the injection device to cause vaporization of reductant that impinges on the downstream extension. | 08-09-2012 |
20120204546 | BURNER AND AFTERTREATING DEVICE OF EXHAUST GAS - Provided are a burner and an aftertreating device of exhaust gas, which employs a simple construction using the flame protection tube, thereby increasing stability in forming the flame without the loss of back pressure and also uniformly heating the exhaust gas. | 08-16-2012 |
20120216513 | EXHAUST LINE WITH INJECTION SYSTEM - An exhaust line has upstream and downstream blocks for processing exhaust gases. An injection section is arranged between an upstream face defined by the upstream block and a downstream face defined by the downstream block and includes a circulation channel for the exhaust gas flow extending from the upstream face to the downstream face. The channel includes a central line having a determined length between the upstream and downstream faces. The injection section includes a reagent injector capable of injecting a reagent into the injection section. The injection section has a first cup inside the circulation channel in the flow path such that the average path of exhaust gas jets is higher by at least 20% in relation to the predetermined length. A second cup is arranged inside the circulation channel between the upstream face and the first cup. The reagent is done between the first cup and the second cup. | 08-30-2012 |
20120222409 | INJECTOR MOUNT AND EXHAUST LINE HAVING AN INJECTOR MOUNT - An injector mount for completely accommodating at least one injector includes a housing having at least one injector chamber. The at least one injector chamber has a first opening and a second opening. The first opening of the injector chamber can be connected to a region of an exhaust line that conducts exhaust gas, and the second opening of the injector chamber can be closed repeatedly by a closure. An exhaust line having an injector mount is also provided. | 09-06-2012 |
20120247091 | EXHAUST GAS CONVERSION SYSTEM AND EXHAUST GAS CONVERSION METHOD - An exhaust gas conversion system includes an oxide catalyst, a filter, a selective catalytic reduction catalyst and an ammonia supplying device. The oxide catalyst, the filter and the selective catalytic reduction catalyst are sequentially arranged in a direction in which an exhaust gas flows in an exhaust path of a diesel engine. The ammonia supplying device is positioned between the oxide catalyst and the filter and configured to supply ammonia. | 10-04-2012 |
20120255287 | EXHAUST EMISSION CONTROL DEVICE - An exhaust emission control device comprises a selective reduction catalyst for reacting NO | 10-11-2012 |
20120260638 | VEHICLE CONTROL DEVICE - A vehicle control device applied to a vehicle including an internal combustion engine and an electrically heated catalyst which is warmed by applying a current, and includes a catalyst carrier supporting a catalyst and a carrier retention unit that retains the catalyst carrier and has an electrical insulation property. The vehicle control device includes an insulation resistance determination unit which determines whether or not an insulation resistance of the carrier retention unit decreases to a value equal to or lower than a predetermined value, and an applying current prohibition unit which prohibits applying the current to the electrically heated catalyst when the insulation resistance determination unit determines that the insulation resistance decreases to the value equal to or lower than the predetermined value. Therefore, it is possible to appropriately control of applying the current to the electrically heated catalyst based on the insulation property of the carrier retention unit, and hence it becomes possible to appropriately prevent an electrical leak of the electrically heated catalyst. | 10-18-2012 |
20120285147 | DELIVERY DEVICE FOR DELIVERING A REDUCING AGENT AND MOTOR VEHICLE HAVING A DELIVERY DEVICE - A delivery device for delivering a reducing agent from a reducing agent tank to an exhaust gas treatment device of an internal combustion engine, includes a partially rigid reducing agent line and a delivery pump disposed in the reducing agent line and having a delivery direction from the reducing agent tank to the exhaust gas treatment device. The delivery device has at least one vibration compensating device selected from the following group: an inflow compensating device upstream of the delivery pump in the delivery direction, an outflow compensating device downstream of the delivery pump in the delivery direction, a pump-internal compensating device within the delivery pump, and a structure borne noise compensating device on a fixing of the delivery pump. A motor vehicle having the delivery device is also provided. | 11-15-2012 |
20120304628 | EXHAUST SYSTEM MIXING DEVICE - A mixing device comprises a circular disc of fin sections positioned so as to create openings in the inner and outer regions of the mixing device that generate oppositely rotating flows of exhaust gas. Each fin section may be identical, and may be created by a stamping process. The smooth surface of each fin section reduces creases, and thus, is less prone to urea buildup. | 12-06-2012 |
20120311999 | DEVICE FOR PROVIDING A LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing a liquid reducing agent includes a reducing agent tank for storing a reducing agent. The reducing agent tank has a tank bottom including a separate chamber. A dosing or metering unit extracts reducing agent from the reducing agent tank at an extraction point disposed at the separate chamber. The dosing unit is disposed within the separate chamber. A motor vehicle having the device is also provided. | 12-13-2012 |
20120312000 | EXHAUST GAS TREATMENT DEVICE FOR DIESEL ENGINE - An exhaust gas treatment device for a diesel engine capable of starting the generation of a combustible gas is provided. The device includes a combustible gas generator. A core member is fitted in the center portion of an annular wall to form an air-fuel mixing chamber between the inner peripheral surface of the annular wall and the outer peripheral surface of the core member. An air-fuel mixture gas in the air-fuel mixing chamber is adapted to be supplied from the end of the air-fuel mixing chamber to a combustible gas generating catalyst to a portion near the center thereof. A heater is used as the core member. The heat dissipating outer peripheral surface of the heater is exposed to the air-fuel mixing chamber. Heat is dissipated directly from the heat dissipating outer peripheral surface of the heater to the air-fuel mixing chamber when starting the generation of the combustible gas. | 12-13-2012 |
20120317962 | DOSING MODULE FOR DOSING AN UREA BASED REDUCING AGENT INTO A GAS EXHAUST STREAM - The present invention relates to a dosing module ( | 12-20-2012 |
20130000281 | DEF PUMP MOUNTED TO TANK - A fluid supply assembly includes a tank configured for holding a fluid and a pump configured to draw the fluid from the tank, wherein the tank includes a recess and the pump is mounted to the tank in the recess. The pump may be connected to the tank along either, or both of, a first and/or a second surface of the recess, wherein the first surface and the second surface may be orthogonal to one another. The fluid supply assembly may further include a header disposed on a horizontal surface of the tank, the header may include at least a portion thereof which extends into an interior of the tank, wherein the pump may draw the fluid from the tank via the header. | 01-03-2013 |
20130000282 | DPF REGENERATION CONTROL DEVICE, DPF REGENERATION CONTROL METHOD, AND DPF REGENERATION SUPPORT SYSTEM - A DPF regeneration control device includes: a differential pressure sensor which detects a differential pressure between a front and a rear of a DPF; a DPF differential pressure setting unit which sets a DPF differential pressure generated in accordance with a total accumulated amount of soot and ash, sets a DPF differential pressure generated when an ash accumulation amount corresponds to an accumulation amount at which washing is required, as a washing request threshold, and sets a DPF differential pressure generated when the ash accumulation amount is larger than the washing request threshold such that a reduction in output is necessary, as an output reduction threshold; a washing request issuing unit which determines whether or not the DPF differential pressure has reached the washing request threshold; and an output reduction warning unit which determines whether or not the DPF differential pressure has reached the output reduction threshold. | 01-03-2013 |
20130061577 | Pre-Injection Exhaust Flow Modifier - An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. The conduit includes an aperture. An injector injects a reagent through the aperture and into the exhaust stream. A flow modifier is positioned within the exhaust conduit upstream of the injector. The flow modifier includes a diverter for increasing the velocity of the exhaust gas at a predetermined location within the conduit relative to the injected reagent. | 03-14-2013 |
20130061578 | REDUCTANT DELIVERY UNIT FOR SELECTIVE CATALYTIC REDUCTION WITH FREEZE ACCOMMODATION STRUCTURE - A reductant delivery unit ( | 03-14-2013 |
20130061579 | Exhaust Gas Aftertreatment System For Engines Equipped With Exhaust Gas Recirculation - A system for treating exhaust of an internal combustion engine having an exhaust recirculation system and a turbocharger includes an exhaust passageway adapted to receive exhaust from the engine. A heat exchanger is adapted to be positioned within the exhaust gas recirculation system. A pressurized air supply system includes a conduit containing pressurized air and extending within the heat exchanger. A regeneration unit for combusting a fuel and heating the exhaust flowing through the exhaust passageway is supplied air from the air supply system that has been heated by the heat exchanger. An exhaust treatment device is positioned downstream from the regeneration unit in receipt of the heated exhaust. | 03-14-2013 |
20130061580 | DIESEL PARTICULATE FILTER SYSTEM - A diesel particulate filter (“DPF”) system that suppresses clogging of a DPF and enhances convenience including accumulated particulate matter (“PM”) quantity estimator for estimating an accumulated PM quantity in an idle state; and a long low idle forced regeneration unit | 03-14-2013 |
20130067894 | COORDINATED ENGINE AND EMISSIONS CONTROL SYSTEM - A system for reducing environmentally harmful emissions from an internal combustion engine. The system may incorporate an exhaust after-treatment device. The exhaust after-treatment device may use selective catalytic reduction to remove certain emissions from the exhaust of the engine. Urea solution may be inserted into the exhaust emissions, which is decomposed to ammonia to become a reduction agent for reduction of NOx in the emissions. The engine may be managed by a controller and the exhaust after-treatment device may be managed by another controller. These controllers may be cascaded, or be managed by a third controller that provides hierarchical or coordinated control of engine performance and emissions reduction. The engine and the exhaust after-treatment device may be modeled to aid in designing and building a system for coordinated control of an actual engine and a selective catalytic reduction after-treatment device. The controllers may be predictive model controllers. | 03-21-2013 |
20130074480 | MIXING AND/OR EVAPORATING DEVICE - A mixing and/or evaporating device ( | 03-28-2013 |
20130091830 | ASSEMBLY FOR MIXING LIQUID WITHIN GAS FLOW - 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. | 04-18-2013 |
20130098004 | FLUID-SPRAY ATOMIZER - An exhaust aftertreatment system is provided. In one embodiment, the system includes a catalyst, and injector positioned upstream from the catalyst, and a fluid-spray atomizer positioned between the catalyst and the injector. The fluid-spray atomizer includes a plurality of horizontal slats, wherein each horizontal slat is a different size and a smaller horizontal slat is nested at least partially inside a larger horizontal slat. | 04-25-2013 |
20130098005 | DELIVERY PUMP FOR A FLUID, METERING DEVICE HAVING THE DELIVERY PUMP AND MOTOR VEHICLE HAVING THE METERING DEVICE - A delivery pump for delivering a fluid includes a delivery piston to be moved in a delivery direction from a pump inlet to a pump outlet. The delivery piston is supported in an axial bearing having a cooling device for cooling the axial bearing with the fluid. A metering device having the delivery pump and a motor vehicle having the metering device are also provided. | 04-25-2013 |
20130098006 | DEVICE, HAVING A SYSTEM HEATING UNIT, FOR PROVIDING A REDUCING AGENT, HEAT TRANSFER METHOD AND MOTOR VEHICLE - A device for providing a reducing agent for an exhaust gas system includes a system heating unit for heating a reducing agent and at least one heat conduction element transmitting heat from the system heating unit to at least one of the following components: a tank, a delivery line, a filter, a pump, a valve or a sensor. A thermal heating method using a heat pipe and a motor vehicle having the device are also provided. | 04-25-2013 |
20130118157 | EXHAUST GAS TREATMENT DEVICE AND MOTOR VEHICLE HAVING THE DEVICE - An exhaust gas treatment device includes an exhaust gas treatment component for conducting a flow in a flow direction from an inflow side to an outflow side. A metering device for metering reducing agent into the exhaust gas treatment device is disposed downstream of the outflow side in the flow direction. The metering device has a metering direction which runs at least partially counter to the flow direction. The outflow side of the exhaust-gas treatment component is spanned at least partially by a porous layer and there is a spacing between the metering device and the exhaust-gas treatment component selected in such a way that injected reducing agent reaches the porous layer. A motor vehicle having the device is also provided. | 05-16-2013 |
20130145749 | FLUID MANIFOLD FOR USE IN AN SCR DOSING SYSTEM - A reductant dosing system manifold includes: a body, a first passage in the body configured to receive a first fluid from a first separately disposed component of a reductant dosing system, and a second passage in the body configured to receive the first fluid from a second separately disposed component of the reductant dosing system, wherein the first passage and the second passage are fluidly isolated from each other within the body, and wherein a positional relationship of the first passage and the second passage is fixed by the body. | 06-13-2013 |
20130152555 | FLUID INJECTION LANCE WITH BALANCED FLOW DISTRIBUTION - An injector configured to introduce a reductant into an exhaust stream, the injector includes: a body including a conduit with a first diameter, a nozzle fluidly coupled to the conduit and disposed at a distal end of the body, and an extension extending from the distal end of the body, the extension extending from the distal end of the body by at least a distance equal to the first diameter. | 06-20-2013 |
20130152556 | FLUID INJECTOR HAVING HEATER - A fluid injector unit for use in an exhaust treatment system includes; a fluid injector having a fluid receiving end and a fluid injecting end, a heater disposed about the fluid injecting end of the fluid injector, an electrical contact member electrically connected to the heater, and a thermal ground disposed about a distal end of the electrical contact member from the heater. | 06-20-2013 |
20130152557 | COMPACT EXHAUST GAS TREATMENT UNIT WITH REACTION AGENT ADDITION AND MOTOR VEHICLE HAVING AN EXHAUST GAS TREATMENT UNIT - An exhaust gas treatment unit at least includes an approach flow region, a diverting region, a backflow region and an outflow region disposed consecutively in terms of flow. The backflow region and the outflow region are disposed on an outer surface of the approach flow region and an addition unit for a reaction agent is disposed in the outflow region. A motor vehicle having an exhaust gas treatment unit is also provided. | 06-20-2013 |
20130160433 | APPARATUS FOR MEASURING THE FILLING LEVEL OF A UREA CONTAINER HAVING AN ULTRASOUND SENSOR AND MOTOR VEHICLE HAVING A UREA CONTAINER - An apparatus for measuring a filling level of a urea container by determining distance using sound waves (ultrasound) emitted by a sensor and echoes thereof, includes a urea container bottom and a sump with an overall height. The sump is adjacent the urea container bottom and located below the level of the urea container bottom. The sump is connected in an open manner to the urea container and bounded at the bottom by a sump bottom. The sensor is accommodated in the vicinity of the sump and, with a sound-emitting surface for emitting sound waves and receiving echoes of the sound waves, is fitted in the urea container with the sound-emitting surface of the sensor at most adjacent the level of the urea container bottom. A motor vehicle having the urea container is also provided. | 06-27-2013 |
20130192214 | SOOT SENSOR MONITORING - A control method for monitoring a soot sensor of an exhaust treatment system is provided. The control method includes: determining when regeneration has completed; comparing soot sensor data to an estimated soot data based on the determining; and generating a message based on the comparing. | 08-01-2013 |
20130219871 | Mounting Assembly for a Reductant Injector - 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. | 08-29-2013 |
20130232957 | DELIVERY UNIT FOR A LIQUID ADDITIVE, METHOD FOR OPERATING A DELIVERY UNIT AND MOTOR VEHICLE HAVING A DELIVERY UNIT - A delivery unit for a liquid additive includes a first pump with a first suction port and a first pressure port, a second pump with a second suction port and a second pressure port, and a feed device. The feed device is connected to the first pressure port through a first line system and the first suction port is connected to a tank for the liquid additive through a second line system. The second pressure port is connected to the tank through a third line system and the second line system and the third line system are separated from one another. A method for operating a delivery unit and a motor vehicle having a delivery unit are also provided. | 09-12-2013 |
20130247545 | EXHAUST AFTERTREATMENT SYSTEM FOR INTERNAL COMBUSTION ENGINE - A mixing plenum for exhaust gas comprises a canister with an inlet and an outlet. A bulkhead is located downstream from the inlet to define an exhaust gas consolidation chamber. An opening in the bulkhead allows exhaust gas to enter a u-shape conduit configured to direct the exhaust gas from a downstream direction to an upstream direction before releasing the exhaust gas back into the plenum downstream of the bulkhead. An injector is configured to inject fluid into the exhaust gas entering the conduit. A conduit exit located a distance “E” from the downstream side of the bulkhead allows the exhaust gas/fluid mixture to exit the conduit into a larger exit volume of the compact mixing can, in the manner of an expansion chamber, where its velocity slows and further mixing of the fluid/exhaust gas occurs and exits the compact mixing can through the outlet flange. | 09-26-2013 |
20130247546 | EXHAUST GAS PURIFICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - The present invention is intended to suppress, in an exhaust gas purification system for an internal combustion engine capable of mixing and combusting liquid fuel and compressed natural gas, an excessive rise in temperature of an exhaust gas purification device at the time when the exhaust gas purification device is caused to regenerate. In the exhaust gas purification system for an internal combustion engine according to the present invention, when the liquid fuel and the compressed natural gas are caused to mix and combust in the internal combustion engine at the time of regenerating the exhaust gas purification device, an amount of HC to be supplied to the exhaust gas purification device from an HC supply device is decreased in comparison with the time when only the liquid fuel is caused to combust in the internal combustion engine. | 09-26-2013 |
20130263581 | EXHAUST-PIPE INJECTION SYSTEM - An exhaust-pipe injection system capable of accurately monitoring a lowered injection pressure generated in a fuel line due to exhaust pipe injection and appropriately perform feedback control for the exhaust injection amount. The exhaust-pipe injection system includes: an exhaust pipe injector that injects fuel to an exhaust pipe of an internal combustion engine; a supply pump that sends a fuel to the exhaust pipe injector via a fuel line; a pressure compensating device provided in the vicinity of the exhaust pipe injector of the fuel line; a fuel pressure sensor provided in the fuel line in an upstream side from the pressure compensating device; and an injection control device that adjusts an injection amount of the exhaust pipe injector based on a monitoring value of the fuel pressure sensor. | 10-10-2013 |
20130276435 | Exhaust Gas System - An exhaust gas system of an internal combustion engine, in particular for a vehicle, includes an exhaust gas conveying duct, at least one insert disposed in the exhaust gas conveying duct for purifying the exhaust gas, an injection system disposed upstream of the insert in the flow path and a turbuliser disposed between the injection system and the insert. A flow rectifier is provided in the exhaust gas conveying duct between the turbuliser and the insert. | 10-24-2013 |
20130305696 | ARRANGEMENT FOR INTRODUCING A LIQUID MEDIUM INTO EXHAUST GASES FROM A COMBUSTION ENGINE - Arrangement for introducing a liquid medium into exhaust gases from a combustion engine: an exhaust gas line ( | 11-21-2013 |
20130318950 | DEVICE FOR SUPPLYING A REDUCING AGENT TO AN EXHAUST-GAS AFTERTREATMENT SYSTEM - The invention relates to a device ( | 12-05-2013 |
20130327026 | DEVICE FOR PROVIDING A LIQUID REDUCING AGENT HAVING A TANK WITH A TEMPERATURE SENSOR AND MOTOR VEHICLE HAVING THE DEVICE - A device for providing liquid reducing agent includes a reducing-agent tank with a tank wall which delimits a tank interior. The tank wall has a metallic wall section and the device has a temperature sensor which is disposed outside the reducing-agent tank. The temperature sensor is configured to determine a temperature of the reducing agent in the reducing-agent tank through the metallic wall section. A motor vehicle having the device is also provided. | 12-12-2013 |
20130327027 | Device for Storing and Supplying Ammonia and Exhaust Line Equipped With Such a Device - A device for storing and supplying ammonia to an exhaust line of an automobile vehicle, includes a solid material provided for absorbing the ammonia, a reservoir for storing the solid material, and a heating unit to heat the solid material to desorb the ammonia. The solid material comprises solid elements with a mass of less than 50 grams. The heating unit is insulated from the reservoir. The device also includes a first assembly for transferring solid elements from the reservoir to the heating unit. | 12-12-2013 |
20130333361 | COKING RESISTANT AFTERTREATMENT DOSING VALUE AND METHOD OF MANUFACTURE - A dosing valve for administering a reducing agent into an exhaust stream within an exhaust manifold of an internal combustion engine. The dosing valve includes a valve needle internally coaxial to a valve body and held in a closed position by a force of compressed spring acting axially and held in relation to the valve needle and valve body. The negative impact of varnish and dehydrogenated compounds, or coking products, of hydrocarbon based reducing agents, is substantially reduced or eliminated. Additionally, this includes decreased sensitivity to the negative impact of the precipitates and crystals that come out of the solution due to temperature change with urea-based reducing agents. | 12-19-2013 |
20140041370 | Exhaust Treatment System for Internal Combustion Engine - An exhaust treatment system for an internal combustion engine comprises an exhaust gas conduit configured to receive an exhaust gas from the internal combustion engine and to deliver the exhaust gas to an exhaust treatment device. A fluid delivery system is located upstream of the exhaust treatment device and is configured to deliver a fluid thereto. It comprises a fluid injector, a fluid tube in fluid communication with the fluid injector and extending radially into the exhaust gas conduit for receipt of fluid from a spray tip of the fluid injector, a controller configured to energize the fluid injector to deliver fluid to the fluid tube, and opening(s) in the tube, disposed beyond the boundary layer of exhaust gas flow in the exhaust gas conduit, for release of the fluid into the exhaust gas flow. | 02-13-2014 |
20140096512 | REDUCING AGENT TANK HAVING A SENSOR FOR DETERMINING A FILL LEVEL AND MOTOR VEHICLE HAVING THE TANK - A tank for a reducing agent includes a tank wall having an outer side and an interior at least partially delimited by the tank wall. A sensor is disposed at the tank wall and has a first electrical contact and a second electrical contact. The first electrical contact and the second electrical contact communicate in an electrically conductive manner with the interior, extend through the tank wall from the interior to the outer side of the tank wall and are disposed at a first spacing of less than 5 cm from one another. A motor vehicle having the tank is also provided. | 04-10-2014 |
20140102081 | COMBUSTION DRIVEN AMMONIA GENERATION STRATEGIES FOR PASSIVE AMMONIA SCR SYSTEM - A method for controlling ammonia generation in an exhaust gas feedstream output from an internal combustion engine equipped with an exhaust aftertreatment system including a first aftertreatment device includes executing an ammonia generation cycle to generate ammonia on the first aftertreatment device. A desired air-fuel ratio output from the engine and entering the exhaust aftertreatment system conducive for generating ammonia on the first aftertreatment device is determined. Operation of a selected combination of a plurality of cylinders of the engine is selectively altered to achieve the desired air-fuel ratio entering the exhaust aftertreatment system. | 04-17-2014 |
20140102082 | EXHAUST SYSTEM WITH LINE ELEMENT - A flexible line element ( | 04-17-2014 |
20140116032 | Injector with Capillary Aerosol Generator - An injector for injecting a reagent includes an axially translatable valve member positioned within a housing. An electromagnet is positioned within the housing and includes a coil of wire positioned proximate the valve member such that the valve member moves between a seated position and an unseated position relative to an orifice in response to energizing the electromagnet. A capillary tube is provided to convert liquid reagent to an ambient pressure vapor and supply it to the orifice. | 05-01-2014 |
20140150412 | DEVICE FOR SUPPLYING LIQUID REDUCING AGENT AND MOTOR VEHICLE HAVING THE DEVICE - A device for supplying liquid reducing agent for an exhaust gas treatment device, includes at least a tank with an interior in which reducing agent can be stored, an intake in the interior, a delivery device situated in a separate chamber in a tank bottom of the tank, a line leading from the delivery device to the exhaust gas treatment device and passing through the tank bottom at the separate chamber, and a cleaning layer covering the intake. An intermediate space is formed between the intake and the cleaning layer and contains at least one sponge element which can absorb reducing agent and from which the delivery device can extract reducing agent through the intake. A motor vehicle having the device is also provided. | 06-05-2014 |
20140196443 | FUEL DISPENSING SYSTEM WITH HEATING SYSTEM - Embodiments of a heating system maintains the temperature of a fuel additive (e.g., AUS32) at and/or above freezing temperature to avoid crystallization. The heating system can form a fluid circuit with one or more coaxially arranged sleeves disposed about hoses that transport the additives. The fluid circuit can also include a central compartment that encloses a flow meter. A fluid heater couples with the fluid circuit to provide heating fluid, e.g., to the central compartment. The heating fluid disperses throughout the heating compartment and into the sleeves, thereby direction heating fluid in thermal proximity to the hoses and other components that handle the fuel additive. | 07-17-2014 |
20140202139 | Hydrocarbon Delivery Apparatus - An apparatus for controlling hydrocarbon delivery in an exhaust gas processing system of an engine that includes a heat generating device and a DPF, comprising a fuel injector and a control manifold, which has a pressure chamber holding compressed air for separating hydrocarbon from exhaust gas, and is fluidly connected to the fuel injector, a fuel control solenoid valve for controlling hydrocarbon supply, a pressure sensor, and a volume changing device, which provides a linear relationship between its volume change and pressure change in the control manifold. With the volume changing device, a deterioration factor value indicative of performance change of the hydrocarbon delivery device can be calculated for compensating temperature control, calculating the hydrocarbon conversion efficiencies of the heat generating device and the DPF in the exhaust gas processing system, detecting failures and mal-functions in the exhaust gas processing system and the engine. | 07-24-2014 |
20140208723 | CATALYTIC CONVERTER AND MUFFLER - A catalytic converter and muffler including a housing having an inlet disposed between a first end and a second end of the housing to introduce exhaust gases into an inlet chamber. A plurality of first exhaust treatment banks disposed between the inlet and the first end of the housing to allow the exhaust gases flow towards the first end from the inlet chamber into an end chamber. A mixing tube to direct the exhaust gases towards the second end from the end chamber into a flow distributor and a plurality of second exhaust aftertreatment banks and flow into an outlet chamber. At least one resonator chamber defined within the housing to attenuate noise in the exhaust gases. | 07-31-2014 |
20140237995 | SYSTEM, METHOD, AND APPARATUS FOR SULFUR RECOVERY ON AN SCR CATALYST - 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. | 08-28-2014 |
20140237996 | SYSTEM, METHOD, AND APPARATUS FOR SULFUR RECOVERY ON AN SCR CATALYST - 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. | 08-28-2014 |
20140260209 | DECOMPOSITION CHAMBER - 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. | 09-18-2014 |
20140260210 | AMMONIA CANISTER CONNECTION DEVICE - 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. | 09-18-2014 |
20140290224 | WHEEL LOADER - A wheel loader includes an engine, a selective catalyst reduction device, and an injection device accommodated in an engine room defined by a vehicle body cover. The wheel loader further includes a partition plate, a reducing agent tank, a reducing agent pump, and a reducing agent pipe. The selective catalyst reduction device is for treating exhaust gas from the engine. The injection device is for injecting reducing agent into the exhaust gas fed from the engine toward the selective catalyst reduction device. The partition plate is disposed between the selective catalyst reduction device and the vehicle body cover. The reducing agent tank stores reducing agent. The reducing agent pump supplies the reducing agent from the reducing agent tank to the injection device. The reducing agent pipe connects the reducing agent pump and the injection device, and extends between the vehicle body cover and the partition plate inside the engine room. | 10-02-2014 |
20140305104 | METERING MODULE FEATURING AIR GAP INSULATION - The invention relates to a device for cooling a metering module ( | 10-16-2014 |
20140331654 | PARTICULATE FILTER DEVICE MONITORING SYSTEM FOR AN ENGINE - A particulate filter device monitoring system for an engine includes a regeneration mode trigger module configured to set a regeneration request based on soot accumulation in the particulate filter device, a regeneration control module configured to control regeneration of the particulate filter device, and a soot out model module including a soot out model configured to calculate changes in soot out rate during prolonged engine idling periods. | 11-13-2014 |
20140331655 | Mounting Assembly for a Reductant Injector - 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. | 11-13-2014 |
20140345258 | ENGINE EXHAUST GAS ADDITIVE STORAGE SYSTEM - System for storing an internal combustion engine exhaust gas liquid additive, the said system comprising a tank for storing the additive and an “immersed” baseplate ( | 11-27-2014 |
20140352284 | FILTER CARTRIDGE FOR A REDUCING AGENT DELIVERY DEVICE AND DELIVERY DEVICE AND MOTOR VEHICLE HAVING A FILTER CARTRIDGE - A filter cartridge for a delivery device for a reducing agent includes at least one filter wall and at least one supporting wall together forming an interior space. The at least one supporting wall has an outflow opening and a bypass opening. The outflow opening can be coupled to the delivery device and the bypass opening bypasses the filter wall. A delivery device and a motor vehicle having a filter cartridge are also provided. | 12-04-2014 |
20140366513 | DEVICE FOR EXHAUST-GAS PURIFICATION AND MOTOR VEHICLE HAVING THE DEVICE - A device includes a pipeline section for an exhaust gas flow. The pipeline section has an inlet end, an outlet end, a rectilinear section and a protuberance having an opening for installing a metering device for a liquid additive (in particular urea/water solution) in the rectilinear section. The protuberance has a height and an extent and the extent is at least twice as large as the height. At least one respective disk-shaped honeycomb body is disposed at each of the inlet end and the outlet end. A central axis of the opening is oriented toward one of the disk-shaped honeycomb bodies. A motor vehicle having the device is also provided. | 12-18-2014 |
20150013313 | MULTISTAGE PLATE MIXER - A mixing and/or evaporating device ( | 01-15-2015 |
20150027108 | WATER-COOLED DOSING MODULE - The invention relates to a dosing module ( | 01-29-2015 |
20150052879 | MIXING PLATE AS STABILIZER FOR AMMONIA GAS INJECTOR - A system for mixing ammonia (reductant) with engine exhaust includes an exhaust flow created by a vehicle engine, an ammonia feed line passing into the exhaust flow, an injector connected to the feed line and positioned within the exhaust flow, the injector having at least one port for discharging ammonia into the exhaust flow, and a mixing plate positioned within the exhaust flow downstream of the ammonia injector and stabilizing at least one of either the feed line and the injector. An aspect of the invention is to stabilize the injector by attaching the mixing plate to the feed line to provide such stability. Alternatively or additionally, the mixing plate is attached to the injector to stabilize. The feed line may even pass through the mixing plate. | 02-26-2015 |
20150059319 | Apparatus for Facilitating Reducant Decomposition and Mixing - According to one embodiment, an apparatus ( | 03-05-2015 |
20150059320 | COOLING DEVICE FOR CONNECTION PIECE - The invention relates to a metering module ( | 03-05-2015 |
20150075141 | CONTAINER HAVING A HEATING DEVICE FOR A TANK FOR STORING A LIQUID ADDITIVE AND MOTOR VEHICLE HAVING A TANK - A container for a tank for storing a liquid additive includes a housing having a heater and at least one drivable apparatus for promoting convection in the housing. A motor vehicle includes a tank for storing a liquid additive and an exhaust gas system having a metering or adding device for the liquid additive. A container is inserted into the tank wall and a plurality of functional components is provided in the container for conveying the liquid additive from the tank through the container to the metering or adding device. | 03-19-2015 |
20150082774 | WORK VEHICLE - A work vehicle includes a vehicle body, a guiding pipe, a first heating section, and a second heating section. The vehicle body has a partition wall that partitions a space in an inner section into a first region and a second region. The guiding pipe is configured to guide a reducing agent. The guiding pipe has a first pipe section and a second pipe section. The first pipe section is positioned inside the first region. The second pipe section is positioned in the second region. The first heating section heats the first pipe section. The second heating section heats the second pipe section and adjusts the temperature independently from the first heating section. | 03-26-2015 |
20150082775 | DOSING DEVICE - The present invention relates to a dosing valve and to a dosing device ( | 03-26-2015 |
20150082776 | METHOD FOR IMPROVING DURABILITY OF EXHAUST PIPE, AND EXHAUST GAS PURIFICATION APPARATUS - In an exhaust gas purification apparatus or other apparatuses that are supplied with ammonia generated from a urea aqueous solution and causes selective reduction and purification of nitride oxides, a shot peening treatment is applied to a welded portion of its exhaust pipe which is made of a ferritic stainless steel plate and through which exhaust gas containing ammonia and hydrogen passes. By shot peening the welded portion of the exhaust pipe, a tensile residual stress in the welded portion of the exhaust pipe can be replaced with a compressive residual stress, and further the diameter of metal crystal grains in the welded portion can be reduced. In this way, the durability of the exhaust pipe can be improved. | 03-26-2015 |
20150089929 | EXHAUST SYSTEM FOR DIESEL VEHICLES - An exhaust system for diesel vehicles is described, which includes at least one metering device for introducing and metering a pollutant-reducing medium into an exhaust gas flowing through a flow pipe of an exhaust tract of an internal combustion engine, in particular for the purpose of introducing a reduction agent and/or a reduction agent precursor, for example urea and/or an aqueous urea solution, the exhaust tract having at least one flexible flange connection. | 04-02-2015 |
20150101316 | HEATER ASSEMBLY WITH PROTECTIVE COATING AND METHOD OF APPLYING SAME - Heater assemblies and other electrical components are provided having protective coatings that allow for use in high temperature and highly corrosive environments. Methods for applying protective coatings are also provided. In one embodiment, a component is provided and includes a protective coating that encapsulates at least a portion thereof. The component can be, for example, a heating assembly that includes a heating element and at least one lead operably coupled to the heating element, or a component that is disposed within a dosing tank in a selective catalyst reduction system having an engine that is configured to emit an exhaust stream. Methods for coating components are also provided. | 04-16-2015 |
20150107231 | SYSTEM AND METHOD FOR REGENERATING AN AUXILIARY POWER UNIT EXHAUST FILTER - This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value. | 04-23-2015 |
20150121855 | Gaseous Reductant Delivery Devices and Systems - Systems and devices for delivering a fluid to an exhaust system. An inlet is configured for receiving the fluid, and a conduit includes openings for expelling the fluid into the exhaust system. A compact gaseous delivery system may include a first conduit in fluid communication with a fluid source, a second conduit in fluid communication with the first conduit, and a plurality of additional conduits in fluid communication with the second conduit and including a plurality of openings for expelling the fluid into the exhaust system. The first conduit, second conduit, and plurality of additional conduits may have axes that are substantially coplanar to form the compact gaseous delivery system that may be disposed within the exhaust system. Implementations may include openings with varying diameters. Other implementations may include a volute conduit with openings. | 05-07-2015 |
20150292382 | Device for providing a liquid additive - A device for providing a liquid additive includes an assembly main body on which at least one hydraulic component is mounted for the operation of the device. A plug-in plate is fastened to the assembly main body and at least one electric heater and at least one further electrical component for the operation of the device are mounted on the plug-in plate. The at least one electric heater extends from the plug-in plate into at least one cutout of the assembly main body. A motor vehicle having the device is also provided. | 10-15-2015 |
20150308313 | WORK VEHICLE - A work vehicle is provided with a vehicle body, a pipe, a first heating section, and a second heating section. The vehicle body has a first region and a second region which is partitioned from the first region. The pipe has a first pipe section and a second pipe section. The first pipe section is positioned inside the first region. The second pipe section is positioned in the second region. The first heating section heats the first pipe section. The second heating section heats the second pipe section and adjusts the temperature independently from the first heating section. | 10-29-2015 |
20150308316 | INTEGRATED MIXING SYSTEM FOR EXHAUST AFTERTREATMENT SYSTEM - In one aspect, a swirl can mixer assembly for mixing a fluid with exhaust gas exhausted from an internal combustion engine is provided. The assembly includes an inlet portion including an injection area configured to receive a fluid injector for dispensing the fluid into the exhaust gas for mixing with the exhaust gas in the mixing assembly to produce an exhaust gas/fluid mixture, an outlet portion, and an extended mixing conduit fluidly coupled between the inlet portion and the outlet portion. The extended mixing conduit is curved about at least a portion of a circumference of the outlet portion to induce a swirl in the exhaust gas/fluid mixture such that the exhaust gas/fluid mixture enters the outlet portion tangentially thereto. | 10-29-2015 |
20150361847 | VALVE ASSEMBLY - A valve assembly for an aftertreatment system is disclosed. The valve assembly includes a coolant conduit. The coolant conduit is configured to allow a coolant flow therethrough. The valve assembly also includes a valve element having a valve passage. The valve element is configured to control a reductant flow through the valve passage. The valve assembly further includes a coupling mechanism provided on the valve element. The coupling mechanism is configured to attach the valve element to the coolant conduit such that a temperature of the valve assembly is controlled based on the coolant flow. | 12-17-2015 |
20150369102 | REDUCING AGENT SUPPLYING DEVICE - A reducing agent supplying device is for a fuel combustion system that includes a NOx purifying device with a reducing catalyst arranged in an exhaust passage to purify NOx contained in exhaust gas of an internal combustion engine. The reducing agent supplying device supplies a reducing agent into the exhaust passage at a position upstream of the reducing catalyst. The reducing agent supplying device includes a reforming portion and a reformation suppressing portion. The reforming portion reforms the reducing agent by partially oxidizing the reducing agent. When a temperature of the reducing agent is higher than a first specified temperature that is equal to or higher than an activation temperature of the reducing catalyst, the reformation suppressing portion (i) suppresses the degree of reformation of the reducing agent in comparison with when a temperature of the reducing agent is lower than the first specified temperature, or (ii) stops the reformation of the reducing agent. | 12-24-2015 |
20150377104 | Exhaust gas line section for supplying liquid additive - An exhaust gas line section, through which an exhaust gas can flow, includes a flow guiding structure, a feed unit configured to supply a liquid additive to the exhaust gas, and a permeable impingement structure, the flow guiding structure, the feed unit, and the permeable impingement structure being positioned one behind the other in the flow direction. The feed unit and the flow guiding structure are arranged and configured such that an impingement region of the liquid additive on the impingement structure overlaps the center of gravity of a flow distribution of the exhaust gas flowing through the impingement structure. | 12-31-2015 |
20150377112 | REDUCING AGENT TANK AND WORK VEHICLE - A reducing agent tank is provided which enables detachment of a top cover and a heat exchanger while maintaining a long path length of a heat exchanger in a reducing agent tank. A first pipeline and a second pipeline respectively have extension portions which extend from lower ends of a suspended portion along a bottom face toward a side face of a container main body, and rising portions which extend from leading ends of the extension portions along the side face toward an upper face of the container main body. A length of the extension portions along the bottom face is larger than a maximum inside length of an opening. The rising portions and a turning portion form a leading end bent portion, and a rising length of the leading end bent portion is smaller than a minimum inside length passing through a center of the opening. | 12-31-2015 |
20160003122 | UREA FILLER NECK AND UREA TANK FOR PREVENTION OF UREA OVERFLOW AND UREA AFTER-TREATMENT SYSTEM WITH OUTSIDE FILLER NECK - A urea filler neck for preventing a urea overflow includes a filler housing forming a urea path in which urea flows to a urea tank. An injection gun guide is provided in the filler housing. An end of an injection gun is fixed by the injection gun guide to limit an insertion position of the injection gun inserted into an inlet of the filler housing. An injection gun guide flooding phenomenon is generated, in which urea flowing backward from the urea tank rises to block an air flow in the filler housing being generated in the injection gun guide. A filler housing pressure increasing phenomenon is generated, in which a pressure in the filler housing is increased due to blocking of the air flow by the injection gun guide flooding phenomenon being generated in the injection gun guide. | 01-07-2016 |
20160003231 | Device for providing a liquid additive - A device for providing a liquid additive includes at least one first pump chamber ( | 01-07-2016 |
20160010530 | Device for delivering a liquid additive | 01-14-2016 |
20160061078 | Exhaust Gas System of an Internal Combustion Engine - An exhaust gas system of an internal combustion engine comprises a pipe section which is disposed in the exhaust train of the exhaust gas system and to which a main fluid containing an exhaust gas is supplied, in particular at an angle to the flow axis of the pipe section. The exhaust gas system comprises a device for injecting a further fluid, in particular a water-urea mixture or a liquid fuel, into the pipe section. Means, in particular stationary means, for generating a swirl by which the spray cone of the injected further fluid is preferably set up are provided in the inlet region of the pipe section. | 03-03-2016 |
20160069236 | TEMPERED SCR-LINE AND TEMPERATE SCR-LINE BUNDLES - The invention relates to an SCR line for treatment of exhaust from an internal combustion engine; and including a first hose to carry a reducing agent, a second hose to carry a tempering agent and a pipe enclosing the two hoses. The two hoses are arranged in the pipe so as to run side by side in parallel. Each of the same-side ends of the first hose and of the pipe are connected to a reducing agent coupling housing. The ends of the second hose are each connected to a tempering agent coupling part separate from the reducing agent coupling housing. At least one of the reducing agent coupling housings has a through-opening at the outer perimeter. The second hose runs from the interior of the pipe through the through-opening to the outside. Furthermore, the invention relates to an SCR line bundle with an SCR line. | 03-10-2016 |
20160076425 | DIESEL EXHAUST MIXING CHAMBER - A mixing chamber can be used for treatment of diesel exhaust. The mixing chamber can include a mixing pipe that permits passage of diesel exhaust, an insertion pipe that inserts the diesel exhaust into the mixing pipe near the first end of the mixing pipe such that the diesel exhaust entering the mixing pipe has angular momentum with respect to a longitudinal axis of the mixing pipe, and a mixer that introduced gaseous ammonia into the diesel exhaust injected with the atomized diesel exhaust fluid (DEF). The mixing pipe can include a DEF doser that injects the atomized DEF into the diesel exhaust. The mixing pipe can have a larger cross section than the insertion pipe. The insertion pipe can insert the diesel exhaust into the mixing pipe before the location of the DEF doser. | 03-17-2016 |
20160084133 | In-Line Flow Diverter - An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. An injector injects a reagent through an aperture in the conduit into the exhaust stream. A flow modifier is positioned within the exhaust conduit and comprises a plate including a plurality of bores spaced apart from one another and positioned about a periphery of the plate. The plate also includes a plurality of slots positioned in parallel with each other. | 03-24-2016 |
20160084134 | Construction Machine - A regeneration device ( | 03-24-2016 |
20160131012 | METHOD FOR OPERATING AN EXHAUST GAS AFTERTREATMENT, DEVICE FOR CONTROLLING AN EXHAUST GAS AFTER TREATMENT, EXHAUST GAS AFTERTREATMENT AND INTERNAL COMBUSTION ENGINE HAVING EXHAUST GAS AFTER TREATMENT - A method and a device for operating an exhaust gas aftertreatment, wherein a diesel particulate filter is regenerated during the operation, in particular passively regenerated, wherein a corrected differential pressure is calculated from a current differential pressure across the diesel particulate filter at a current exhaust gas volumetric flow rate and with a current correction factor. The current correction factor is determined by determining a lower differential pressure in a predetermined time interval at a defined exhaust gas volumetric flow rate, in particular in a specified exhaust gas volumetric flow rate interval around the defined exhaust gas volumetric flow rate, and comparing the lower differential pressure with a specified current reference value and, depending thereon, calculating a new correction factor or retaining the previous correction factor as the current correction factor. | 05-12-2016 |
20160160735 | EXHAUST ELBOW COMPONENT WITH INTEGRATED MOUNT - An exhaust elbow component may be located upstream of a decomposition reactor pipe and/or may be integrated with decomposition reactor pipe. The exhaust elbow component includes a mounting area for mounting a dosing module to the exhaust elbow component. The mounting area may be configured to limit the heat transfer from the elbow component to the dosing module via the mounting area. The mounting area may include a boss and one or more mounting legs. The one or more legs and/or the boss may have a surface area for convective cooling of the mounting area. The boss may include an opening through an exterior wall of the exhaust elbow component through which an injection tip of the dosing module may dose reductant into an interior chamber of the exhaust elbow. A central axis of the opening may be substantially coaxial with a central axis of the exhaust gas outlet. | 06-09-2016 |
20160186633 | Method for producing a delivery module for installation into a tank - A method for producing a delivery module having an electric PTC heater, for installation into a tank for storing a liquid additive, includes: a) fixing a maximum electrical power that is made available to the delivery module; b) determining a thermal conductivity of the delivery module from a location of the electric PTC heater into the tank; c) calculating a switching temperature of the PTC heater based on the maximum electrical power and the thermal conductivity; and d) mounting a PTC material with a corresponding switching temperature for the PTC heater at the location. | 06-30-2016 |
20160377033 | EXHAUST GAS MIXER ARRANGEMENT - An exhaust gas mixer arrangement for mixing exhaust gases of an internal combustion engine with an additive comprises an exhaust gas flow duct ( | 12-29-2016 |
20170234183 | SYSTEM AND METHODS FOR REDUCING SOx GASES IN AFTERTREATMENT SYSTEMS | 08-17-2017 |
20170234191 | FLUID LINE | 08-17-2017 |
20180023432 | TORQUE CONTROL SYSTEM FOR DPF REGENERATION | 01-25-2018 |
20190143279 | AN INJECTION ARRANGEMENT FOR INJECTION OF A UREA SOLUTION INTO AN EXHAUST GAS PASSAGE | 05-16-2019 |