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8893472 Cogeneration apparatus  
A cogeneration apparatus includes: an airtight chamber provided within an apparatus casing and constructed to prevent exhaust gas of a prime mover from flowing out therefrom; and a relief valve...
8893484 Solid SCR system and heating method for solid SCR reductant using the same  
A solid SCR system includes solid state reductant, a container storing the solid state reductant, an exhaust pipe supplying gas state reductant converted from the solid state reductant and SCR...
8894952 Method of reducing nitrogen oxide using amine compound as reductant  
A method of reducing nitrogen oxide includes a process of injecting a reductant including an amine compound and an exhaust gas including nitrogen oxide into a catalyst system including a silver...
8893470 Method for preventing clogging of urea injection nozzle of SCR system  
In a method for preventing clogging of a urea injection nozzle in an after-run operation of a selective catalytic reduction (SCR) system which supplies urea stored in a urea tank through a supply...
8893476 SCR closed loop control system  
A method for an exhaust after treatment system of an engine including at least one selective catalyst reaction (SCR), at least one clean up catalyst downstream from the SCR, a urea injector...
8893475 Control system for doser compensation in an SCR system  
A method includes determining whether selective catalytic reduction (SCR) test conditions are present, and in response to the SCR test conditions being present, operating an SCR aftertreatment...
8887496 Heat recovery system for a vehicle  
A heat recovery system for an engine is provided herein. According to one approach, the heat recovery system includes an upstream portion that circumferentially wraps around an outlet of an exhaust...
8887491 Control apparatus for an internal combustion engine  
A control apparatus for an internal combustion engine determines, based on an output value of the downstream air-fuel ratio sensor, an air-fuel ratio of a gas flowing into the catalyst that is set...
8887490 Rich burn internal combustion engine catalyst control  
A catalyst system may include a catalyst and a first sensor that detects contents of gases entering the catalyst and reports the contents of the gases entering the catalyst to an emissions control...
8887495 Ash filter, exhaust gas treatment system incorporating the same and method of using the same  
An ash filter for a reciprocating piston internal combustion engine is disclosed. The ash filter includes a substrate, such as a honeycomb monolith substrate or a plurality of particulate...
8881507 Air driven reductant delivery system  
A dosing system for delivering reductant to an exhaust gas treatment system of an internal combustion engine using air driven hydraulic pumps for closed-loop controlling reductant pressure and a...
8883103 Catalytic converter for treating ionized exhaust  
A method for treating exhaust from an engine. The method includes activating an exhaust ionizer in receipt of the exhaust when temperature of a catalyst of a selective catalytic converter, which is...
8883102 Methods for controlling nitrous oxide emissions  
Systems and methods for controlling nitrous oxide emissions are described. In one particular example, nitrous oxide formed in the exhaust system of a diesel hybrid vehicle is routed through an...
8881503 Method and device for preventing fuel freezing in a postprocessing burner system  
Disclosed is a method for preventing fuel freezing in a postprocessing burner system with a burner 14 upstream of a particulate filter 12 (exhaust purification member) incorporated in an exhaust...
8881511 Method for reducing the amount of NOx in the exhaust gases of a motor vehicle  
The invention relates to a method for controlling a system for reducing the amount of NOx in the exhaust gases of a motor vehicle. The system comprises a storage chamber (8) which contains a...
8883101 Method for operating an exhaust gas system for an internal combustion engine  
A method for operating an exhaust gas system for an internal combustion engine, in which the exhaust gas system includes at least one first catalytic coating and at least one second catalytic...
8875488 Internal combustion engine  
An internal combustion engine, in which intake air flows through an intake passage into a combustion chamber and exhaust gas resulting from the combustion in the combustion chamber flows through an...
8875505 Internal combustion engine and method for controlling internal combustion engine speed  
In one exemplary embodiment of the invention a method for controlling a speed of an internal combustion engine includes shutting off fuel flow into a cylinder to reduce the speed of the internal...
8875487 Exhaust purifying system for hybrid vehicle and control method therefor  
An exhaust purifying system includes: a catalytic device supplied with electric power from a power supply unit; a first connecting unit connecting one end of the catalytic device to a negative...
8875489 Reduction of particulate, NOx, and ammonia emissions  
A method for controlling emissions from an engine includes reducing trapped nitrogen oxides to ammonia on an LNT catalyst while concurrently oxidizing soot accumulated on the LNT catalyst, and,...
8875494 Fuel control for spark ignited engine having a particulate filter system  
A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize...
8875491 Exhaust gas aftertreatment system and method  
An exhaust gas aftertreatment system and method are provided. The system comprises a controller, a pump, and a volume quantity dispensing unit. The volume quantity dispensing unit comprises a...
8875490 System and method to control selective catalytic reduction systems in feedback  
A method includes determining a current mid-bed NH3 amount by operating an NH3 sensor positioned at a mid-bed location for an engine aftertreatment system having two SCR catalyst beds. The method...
8875502 SCR exhaust gas aftertreatment device  
An SCR exhaust gas aftertreatment device in which a urea-water solution is injected into an exhaust gas line is provided. At least one component of the device (e.g., a filter element) lies in an...
8875496 Regeneration control system for exhaust filter and method  
A regeneration control system for an exhaust filter in an internal combustion engine system includes a first sensing mechanism for monitoring an exhaust flow resistance of the exhaust filter, and a...
8875501 Power system for controlling phosphorus aging  
A method of controlling a power system including an engine and an exhaust treatment system having an exhaust treatment device is disclosed. The method includes determining a catalyst parameter...
8869516 Method of mixing exhaust gas exiting an exhaust stack outlet with cooling air exiting a cooling package outlet and machine using same  
A machine includes an internal combustion engine disposed within an engine compartment and supported on a machine frame. An exhaust stack has an inlet fluidly connected to an exhaust manifold of...
8869514 Method and device for controlled dosing of a gas with fluctuating supply pressure  
A method for controlled dosing of a gas with fluctuating supply pressure (PSupply). Dosing of the gas through a valve (6) is performed while a valve (5) is closed, and the decrease in...
8869511 Exhaust valve for a large sized two stroke diesel engine, process for reduction on NOx-formation in such an engine and such engine  
For reducing the NOx-emission of a large sized two stroke diesel engine having at least one combustion room (3), a reciprocating piston (4) and an exhaust opening (12) controlled by an exhaust...
8869512 Combined engine out NOX management  
An apparatus for controlling engine operations to a low NOx output amount at low selective catalytic reduction (SCR) temperature values and alternatively for controlling engine operations in an EGR...
8869513 Exhaust diagnostic control system and method with NH3 depletion cleansing  
An exhaust diagnostic control system comprises a test enabling module, an exhaust gas temperature management module, and an exhaust diagnostic control system. The test enabling module is configured...
8869515 Method for controlling pollutant emissions from a combustion engine  
The invention relates to a method for controlling a system for treating NOx in an exhaust line of an internal combustion engine, said system comprising means for introducing a reducing agent into...
8863507 Exhaust gas purification system for the treatment of engine exhaust gases by means of SCR catalyst  
An exhaust gas purification system (method and device) for the treatment of diesel exhaust gases containing nitrogen oxides and hydrocarbons is disclosed, which comprises the addition of ammonia or...
8863504 System, method, and apparatus for determining aftertreatment fluid quality  
A method includes determining a first NOx conversion efficiency (η) value and determining that a diesel exhaust fluid (DEF) level has increased a threshold amount. Further, the method includes ...
8863496 Particulate matter control system and its failure determination method  
A particulate matter control system includes: an electrode that is provided in an exhaust pipe of an internal combustion engine; a power supply that is connected to the electrode and that applies...
8863505 Start-stop hybrid exothermic catalyst heating system  
A catalyst heating system includes a first monitoring module, a mode selection module and an electrically heated catalyst (EHC) control module. The first monitoring module monitors at least one of...
8863503 Exhaust purification system for internal combustion engine  
An exhaust purification system is provided that can appropriately grasp the NOx concentration or NH3 concentration on a downstream side of a selective reduction catalyst. A separation filter of the...
8863497 Control methods for improved catalytic converter efficiency and diagnosis  
A controlling method for adjusting concentrations of, for example, individual cylinder's exhaust gas constituents to provide engine functions such as catalytic converter diagnosis, increased...
8857161 Exhaust gas purification apparatus and exhaust gas purification method for an internal combustion engine  
A detection unit that is arranged in an exhaust passage of an internal combustion engine configured to detect a state of the exhaust gas, addition unit configured to add the additive agent into the...
8857155 Methods and systems for humidity detection via an exhaust gas sensor  
Various methods and system are described for determining ambient humidity via an exhaust gas sensor disposed in an exhaust system of an engine. In one example, a reference voltage of the sensor is...
8857152 System and method for unloading hydrocarbon emissions from an exhaust after-treatment device  
A method unloads hydrocarbon emissions deposited by an exhaust gas on an after-treatment device that is employed in an exhaust system for an internal combustion engine. The method includes...
8857158 Aftertreatment system and control strategy for internal combustion engine  
In an exhaust gas treatment method for an internal combustion engine, a DPF abnormal combustion causing operation is determined to have occurred when the internal combustion engine shifts from a...
8857154 Exhaust aftertreatment for NOx-containing exhaust from an internal combustion engine  
A method of treating NOx-containing exhaust from an internal combustion engine. An exhaust aftertreatment system has the following devices arranged in the following order downstream the exhaust...
8858903 Methods for oxidation and two-way and three-way ZPGM catalyst systems and apparatus comprising same  
Oxidation ZPGM catalyst systems and three way ZPGM catalyst systems are disclosed. ZPGM catalyst systems may oxidize toxic gases, such as carbon monoxide and hydrocarbons, optionally some ZPGM...
8857153 Method for measuring the quality of ammonia injection for an exhaust gas after treatment system of a vehicle  
A system and method for determining a rate of ammonia deposition and controlling an engine is described. In one example, an amount of ammonia deposited in an engine exhaust is determined and the...
8850800 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...
8850798 Particulate filter regeneration method  
A regeneration system for a filter that filters exhaust gas of an engine includes a soot loading determination module that determines soot accumulation in the filter. A regeneration control module...
8850803 Auxiliary power and emission-control system using vented gaseous fuel recovery and method  
A system includes a main engine operating on gaseous fuel from a tank. An auxiliary engine operates using gaseous fuel vented from the tank. A first exhaust passage receives a first stream of...
8845987 Method for improving lean performance of PGM catalyst systems: synergized PGM  
Synergized Platinum Group Metals (SPGM) catalyst system for TWC application is disclosed. Disclosed SPGM catalyst system may include a washcoat with a Cu—Mn spinel structure and an overcoat that i...
8844267 Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor  
A vehicle includes an engine, an exhaust system, a selective catalytic reduction (SCR) device, a first and a second NOx sensor configured to respectively measure an upstream and a downstream NOx...