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| Number | Title | Issue Date |
| 8166751 | Particulate filter A filter includes a housing including an inlet and an outlet, and the housing includes a first section and a second section. The filter also includes a plurality of parallel channels defined by a plurality of porous walls within the first and second sections of the ... | 05/01/2012 |
| 8166750 | Exhaust system An exhaust gas system for purifying exhaust gases of an internal combustion engine, particularly a diesel engine in a motor vehicle, conducts the exhaust gas in a specific flow direction. A catalytic converter, particularly for converting hydrocarbons and carbon mon... | 05/01/2012 |
| 8156737 | Elevated exhaust temperature, zoned, electrically-heated particulate matter filter A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that ... | 04/17/2012 |
| 8151560 | System and method for monitoring particulate filter performance In an apparatus having an internal combustion engine, an exhaust system for transporting engine exhaust from the engine is described. In one example, a particulate filter disposed in the exhaust system is assessed for degradation. The approach may be particularly us... | 04/10/2012 |
| 8146352 | Diesel particulate filter control Methods and systems are provided for managing particulate emissions in an engine including a particulate filter and a CO2 sensor downstream of the filter. A CO2 sensor may be used to infer the presence of particulate matter in the exhaust, down... | 04/03/2012 |
| 8136349 | Exhaust-gas purification system with particulate filter and method of operation thereof with improved regeneration of the particulate filter The present invention describes an exhaust-gas purification system for an internal combustion engine made of an oxidation catalyst arranged close to the engine, a subsequent hydrocarbon adsorber and a particulate filter arranged downstream thereof and provided with ... | 03/20/2012 |
| 8122711 | Procedure to acquire a sooty particle concentration in the exhaust gas of an internal combustion engine The invention concerns a procedure to ascertain a concentration of sooty particles in an exhaust gas system of an internal combustion engine or a depletion of an emission control system of the internal combustion engine due to the loading of sooty particles, whereby... | 02/28/2012 |
| 8104272 | Exhaust purifying system for internal combustion engine There is provided an exhaust purifying system for an internal combustion engine which can achieve a function of a catalyst without deteriorating a function of ozone at the time of oxidizing and removing PM by using the ozone. The exhaust purifying system for the int... | 01/31/2012 |
| 8091348 | Method and apparatus for exhaust aftertreatment in an internal combustion engine A method and system for managing an exhaust gas feedstream from an internal combustion engine operative lean of stoichiometry includes steps and apparatus for diverting exhaust around a three-way catalytic converter during NOx adsorber regeneration thereby increasin... | 01/10/2012 |
| 8091347 | 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 (33) exceeds a predetermined amount and an exhaust gas temperature of an engine is lower than a restoration operable temperature, an intake a... | 01/10/2012 |
| 8051647 | Exhaust purification device of internal combustion engine An internal combustion engine in which a main SOx trap catalyst able to trap SOx contained in exhaust gas is arranged in an engine exhaust passage, and the exhaust passage downstream of the main SOx trap catalyst is divided into a main exhaust passage and a bypass p... | 11/08/2011 |
| 8046988 | System having multiple valves operated by common controller A control system for a power system is disclosed. The control system has a first valve mechanism, a second valve mechanism, and a controller in communication with the first and second valve mechanisms. The controller is configured to direct a single electronic contr... | 11/01/2011 |
| 8042327 | Exhaust purification device of internal combustion engine An engine with an exhaust passage in which a catalyst purifying NOx and an NOx adsorbent adsorbing NOx in an exhaust gas are arranged successively from the upstream side. After engine startup until the catalyst is activated, the NO | 10/25/2011 |
| 8015806 | Process and apparatus for treating exhaust gas of an internal combustion engine and vehicle having the apparatus A process and an apparatus for treating exhaust gas from an internal combustion engine include at least two exhaust-gas treatment modules. An exhaust gas stream can be at least partly deflected depending on a load state of the internal combustion engine in such a wa... | 09/13/2011 |
| 8011180 | Particulate filter regeneration A method of operating an engine having a diesel particulate filter in a vehicle is disclosed. In one example, the filter is regenerated in response to a temperature differential across each of a plurality of filter channels. The method can improve the timing of filt... | 09/06/2011 |
| 8011179 | Method and system for maintaining aftertreatment efficiency A method is provided for compensating for factors affecting particulate matter accumulation within an aftertreatment element of an engine exhaust system. The method comprises determining rate of change of flow resistance through the aftertreatment element with time.... | 09/06/2011 |
| 7992383 | Method for controlling exhaust gas purification system and exhaust gas purification system In regeneration control, when the catalyst temperature index temperature (Tg2) using the temperature of the oxidation catalyst (12a) as an index is below a predetermined first determination temperature (Tc1), the engine speed of idling is... | 08/09/2011 |
| 7980068 | Woven metal fiber particulate filter A passive particulate filter assembly for filtering exhaust. The assembly includes a housing unit defining a filtering chamber having an inlet port and an outlet port. A cylindrical inner core member is disposed in the filtering chamber and is surrounded by a pleate... | 07/19/2011 |
| 7980069 | Burner assembly for particulate trap regeneration An exhaust treatment system is provided. The system may include a particulate trap configured to remove one or more types of particulate matter from an exhaust flow, the exhaust flow including at least a portion of a totality of exhaust gases produced by an engine. ... | 07/19/2011 |
| 7937936 | Vehicle exhaust component arrangement An exhaust component arrangement is provided for an off-road vehicle having an engine, a cab, a transmission connected to the engine, and a fuel tank adjacent the transmission. A portion of the fuel tank is positioned below a portion of the cab. The exhaust componen... | 05/10/2011 |
| 7930881 | Exhaust system for lean burn IC engine including particulate filter and NOabsorbent An exhaust system for a lean burn internal combustion engine includes a particulate filter (CSF), a first NOx absorbent (NOx(1)) disposed upstream of the filter and a second NOx absorbent (NOx(2)) disposed do... | 04/26/2011 |
| 7908847 | Method and apparatus for starting up a fuel-fired burner of an emission abatement assembly A method of starting up a fuel-fired burner of an emission abatement assembly includes lowering the fuel rate being supplied to the burner once flame ignition is detected. The fuel rate is maintained at this lower level as the assembly preheats. Once preheated, the ... | 03/22/2011 |
| 7900443 | Particle filter arrangement A particle filter arrangement for filtering exhaust gases of an internal combustion engine such as a diesel internal combustion engine, includes an inlet and an outlet and at least one particle filter arranged in the flow path of the exhaust gases between the inlet ... | 03/08/2011 |
| 7891177 | Particulate trap temperature sensor swap detection An exhaust after-treatment system is disclosed. The system has a particulate trap disposed to remove particulate matter from an exhaust flow of an engine, an upstream temperature sensor disposed to measure a temperature of the exhaust flow upstream of the particulat... | 02/22/2011 |
| 7891176 | Exhaust gas purifying apparatus An exhaust gas purifying apparatus includes a primary diesel particulate filter provided in an exhaust line of a diesel engine, a secondary exhaust line branched from the exhaust line from an upstream side of the primary diesel particulate filter, and a secondary di... | 02/22/2011 |
| 7874148 | Regeneration system and method for particulate traps An internal combustion engine system has an internal combustion engine with an intake for air and an exhaust for products of combustion. The engine has a turbocharger for pressurizing intake air in response to passage of the products of combustion. An exhaust aftert... | 01/25/2011 |
| 7841171 | Exhaust emission control device for internal combustion engine A method is disclosed for estimating an amount of deposited particulates (PM) in a collector of an internal combustion engine. The method includes estimating the amount of inflow of PM into the collector and estimating a basic amount of decreased PM that flows into ... | 11/30/2010 |
| 7841172 | Method and system for maintaining aftertreatment efficiency A method is provided for compensating for variability in ash accumulation rates within an aftertreatment element of an engine exhaust system. The method includes determining flow resistance values through the aftertreatment element and tracking minimum flow resistan... | 11/30/2010 |
| 7836688 | Exhaust system The present invention relates to an exhaust system for an internal combustion engine, in particular in a motor vehicle, having an SCR module containing at least one SCR catalyst element in an SCR housing connected to an exhaust line and having a PF module containing... | 11/23/2010 |
| 7832203 | Exhaust system for a lean burn internal combustion engine An exhaust system for an internal combustion engine has a catalyzed ceramic wall flow particulate filter coated with a washcoat composition. The washcoat composition includes an oxidation catalyst of at least one platinum group metal and a NOx absorbent. ... | 11/16/2010 |
| 7827784 | Exhaust gas control apparatus for internal combustion engine and method of controlling same An exhaust gas control apparatus for an internal combustion engine includes an exhaust gas purification catalyst device provided in an exhaust passage for the engine; an HC adsorption portion, provided in the exhaust passage, which adsorbs hydrocarbon in exhaust gas... | 11/09/2010 |
| 7814747 | Exhaust gas aftertreatment installation and method An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic convert... | 10/19/2010 |
| 7797930 | Exhaust gas purification device of internal combustion engine An ECU performs exhaust temperature control based on output values of multiple exhaust temperature sensors provided upstream and downstream of a particulate filter provided in an exhaust passage of an engine. The ECU calculates a change speed deviation value by subt... | 09/21/2010 |
| 7788911 | Adsorbed substance accumulation reduction for exhaust treatment equipment A system, method and computer operable code is disclosed for reducing HC and liquid accumulation in an exhaust gas treatment system. A timer is used to monitor the amount of time the system spends in either absorption mode or desorption mode. If the exhaust gas temp... | 09/07/2010 |
| 7739869 | Diesel particulate filter performance using sonic particle agglomeration A method and system for improving the performance of diesel particulate filters. Before entering the filter, the exhaust gas is subjected to sonic waves to agglomerate the particles. ... | 06/22/2010 |
| 7712307 | Exhaust gas system, especially for an internal combustion engine of a motor vehicle In an exhaust gas system for an internal combustion engine, particularly of a motor vehicle, wherein the exhaust gas system comprises a nitrogen oxide reducing converter arranged in an exhaust gas line of the internal combustion engine, an exhaust gas cleaning devic... | 05/11/2010 |
| 7703278 | Exhaust emission control device of internal combustion engine An exhaust emission control device includes a plurality of devices for removing particulates accumulated in a particulate filter. A temperature increasing device increases a temperature of the particulate filter. A temperature estimator estimates the temperature of ... | 04/27/2010 |
| 7677032 | Apparatus, system, and method for determining the distribution of particulate matter on a particulate filter An apparatus, system, and method are disclosed for determining the distribution of particulate matter on a particulate filter. The apparatus, in one embodiment, determines a first distribution of particulate matter by comparing the pressure change across the particu... | 03/16/2010 |
| 7673448 | Diesel exhaust article and catalyst compositions therefor A self-cleaning diesel exhaust particulate filter system is disclosed wherein burn-off of collected particulate matter is accomplished at normal exhaust gas temperatures, the filter system being provided with a catalyst mixture of a co-formed ceria-zirconia composit... | 03/09/2010 |
| 7658064 | Exhaust gas purifying apparatus An exhaust gas purifying apparatus includes a primary diesel particulate filter provided in an exhaust line of a diesel engine, a secondary exhaust line branched from the exhaust line at an upstream side of the primary diesel particulate filter, a secondary diesel p... | 02/09/2010 |
