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9016044 IC engine and method for operating an IC engine  
A method is provided for operating an internal combustion engine of a motor vehicle. The method includes, but is not limited to storing exhaust gas while the engine is working, and supplying the...
9016046 Internal combustion engine with exhaust-gas aftertreatment arrangement and method for operating an internal combustion engine of said type  
A method, comprising purging a storage catalytic converter of stored NOx by diverting only a portion of incoming exhaust flow around the catalytic device while increasing injection of reductant to...
9016043 Exhaust treatment system with urea temperature rationality diagnostic  
A method for monitoring an exhaust after-treatment system that doses an exhaust treatment fluid held from a tank into an exhaust stream. The method includes determining a first temperature of the...
9017626 Selective catalytic reduction catalyst system  
Described are SCR catalyst systems comprising a first SCR catalyst composition and a second SCR catalyst composition arranged in the system, the first SCR catalyst composition promoting higher N2...
9010087 Method and system for NOx sensor degradation  
Various systems and method for detecting exhaust NOx sensor degradation are disclosed. In one example, degradation of the NOx sensor is indicated responsive to reductant injection in an exhaust...
9011806 Method for treating a gas containing nitrogen oxides (NOx) using a composition comprising zirconium, cerium and niobium as a catalyst  
The invention relates to a method for treating a gas containing nitrogen oxides (NOx), in which an NOx-reduction reaction is carried out using a nitrogen-containing reducing agent, which invention...
9011807 8-ring small pore molecular sieve as high temperature SCR catalyst  
Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves...
9010096 Exhaust component mounting system  
An exhaust treatment system including an exhaust passage in communication with an engine that produces an exhaust. An exhaust canister is coupled to the exhaust passage, and the exhaust canister...
9010092 Method and apparatus for controlling urea injection amount of vehicle  
A method is provided for controlling a urea injection amount of a vehicle that controls urea injection in consideration of a difference between an internal temperature change rate and a...
9003776 Method for regenerating an exhaust after treatment device  
Methods and systems for regenerating an after treatment device are disclosed. In one example, the possibility of introducing fuel to oil during after treatment device regeneration is reduced. The...
9005560 NOx trap composition  
A method to produce a NOx trap composition, and its use in a NOx trap and in an exhaust system for internal combustion engines, is disclosed. The NOx trap composition is produced by heating an...
9003773 Vehicle and a method of updating aging of a selective catalytic reduction filter of an exhaust treatment system of the vehicle  
A vehicle and method of updating aging of a selective catalytic reduction filter (SCRF) of an exhaust treatment system of the vehicle are disclosed. The method includes determining a desorption...
9005559 Oxidation catalyst for internal combustion engine exhaust gas treatment  
The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression...
9005558 Method and apparatus for exhaust gas control of an internal combustion engine  
An exhaust gas control apparatus for an internal combustion engine includes: a NOx purification catalyst arranged in an exhaust passage of the internal combustion engine; a degradation degree...
9003772 Method and control unit for metering fuel into an exhaust gas duct  
A method for metering fuel from a high pressure system, comprising at least one high pressure pump, one pressure accumulator and one high pressure injection valve, into an exhaust gas duct of an...
9003777 Methods and systems for an exhaust gas treatment system  
Various systems and methods are described for an engine system with an exhaust gas treatment system including a particulate filter. In one example method, accumulated hydrocarbons are removed from...
9003778 Exhaust fluid dosing control system and method  
A dosing control system for an exhaust system includes: a reductant fluid tank operable to contain a reductant solution comprising urea; an injector disposed in operable communication between a...
8997465 Method for purification of exhaust gas from a diesel engine  
The invention provides a method for purification of exhaust gas from a diesel engine in a system, which comprises a device for selective catalytic reduction and a diesel particulate filter...
8997467 System and method for post-shutdown temperature management and purge  
A machine includes an engine having a coolant system, an electrical system, and an exhaust system. A diesel exhaust fluid (DEF) injector provides DEF into the exhaust system. The DEF injector...
8999276 System and method for mixing of fluids  
A mixing element positioned at an exhaust outlet of a Selective Catalytic Reduction (SCR) module is provided. The mixing element includes a base plate having an upper surface and a lower surface....
8991153 Self-regenerating particulate trap systems for emissions and methods thereof  
A method and system for treating emissions includes charging particles in an exhaust stream, producing one or more radicals, and oxidizing at least a portion of the charged particles with at least...
8991161 DeNOx of diesel engine exhaust gases using a temperature-controlled precatalyst for providing NO2 in accordance with the requirements  
A process which solves the problem of supplying NO2 in accordance with requirements by means of temperature control of the precatalyst which is decoupled from the operating state of the engine. In...
8991155 Vehicle and a method of determining a reductant storage capacity set point of a selective catalytic reduction filter of an exhaust treatment system of the vehicle  
A vehicle and a method of determining a reductant storage capacity set point of a selective catalytic reduction filter (SCRF) of an exhaust treatment system of a vehicle are disclosed. The method...
8992869 Ammonia oxidation catalyst system  
A treatment device configured to receive a flow of exhaust from a power source is disclosed. The treatment device may have a first layer, a second layer, and a substrate layer. The first layer may...
8986636 Apparatus and method for filtering engine exhaust gases  
Embodiments of the invention provide an engine aftertreatment apparatus comprising first and second diesel particulate filters (DPFs), the first DPF being provided upstream of the second DPF, the...
8984861 Catalyst deterioration diagnosis method, method for purification of exhaust gas using the diagnosis method, catalyst deterioration diagnosis apparatus, and apparatus for purification of exhaust gas using the diagnosis apparatus  
A catalyst deterioration diagnosis method for diagnosing deterioration of a catalyst for purification of exhaust gas by using a test catalyst disposed in an exhaust gas flow path through which the...
8986635 Exhaust system for a lean-burn IC engine comprising a PGM component and a SCR catalyst  
Methods are disclosed for reducing or preventing a selective catalytic reduction (SCR) catalyst disposed on a first substrate monolith in an exhaust system of a lean-burn internal combustion engine...
8984881 Steam engine powered hydrogen oxygen generation system for an internal combustion engine  
A Steam Engine Powered System is provided which, when integrated with an internal combustion engine, generates hydrogen gases to provide an additional fuel source. The System's hydrogen is created...
8984860 Diesel engine and exhaust aftertreatment system and method of treating exhaust gases from a diesel engine  
In a diesel engine and exhaust aftertreatment system, a controller is arranged to control operation of the engine to obtain a first set of exhaust characteristics and to control a fuel injector to...
8978369 Exhaust gas aftertreatment module  
An aftertreatment module for the treatment of exhaust gasses from a power system includes a first aftertreatment brick and a second aftertreatment brick. The first and second aftertreatment bricks...
8980209 Catalyst compositions, catalytic articles, systems and processes using protected molecular sieves  
Described are catalyst compositions, catalytic articles, methods of manufacturing catalytic articles and exhaust gas treatment systems and methods that utilize the catalytic articles. The catalyst...
8978361 Apparatus for delivering a reducing agent and method for producing a motor vehicle  
A device for delivering a reducing agent, in particular a liquid urea-water solution, includes at least two of the following elements: a storage device (e.g. a tank), a delivery device (e.g. a...
8980208 Exhaust gas aftertreatment system and method for exhaust gas aftertreatment  
An exhaust gas aftertreatment system for an internal combustion engine, particularly for a ship's diesel engine operated with heavy oil, has a SCR catalyst that uses ammonia as reductant. A nozzle...
8966881 Device and method for combusting particulate substances  
It is possible to provide a device and a method for combusting particulate substances which particulate matters discharged from an internal combustion engine can be effectively combusted, and the...
8967181 Diesel exhaust fluid tank venting system  
An exhaust after-treatment system associated with a diesel engine includes a diesel exhaust fluid storage unit. The storage unit includes a diesel exhaust fluid tank and a vent system coupled to...
8966880 Systems and methods for determining the quantity of a combustion product in a vehicle exhaust  
Exhaust after treatment systems for internal combustion engine powered vehicles are provided. One system includes logic in the form of one or more routines implemented by one or more of the...
8959898 Regeneration methods and systems for particulate filters  
A method of regenerating a particulate filter of an exhaust system is provided. The method includes determining a first regeneration mode based on a soot level; generating control signals to a...
8959904 Method to control and diagnose an exhaust gas heat exchanger  
A method for controlling a vehicle having an engine with an exhaust heat recovery system, includes generating a signal to control exhaust gas flow through an exhaust gas heat exchanger, and...
8959899 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...
8959892 Exhaust system having sensor placement detection  
An exhaust control system for use with a combustion engine is disclosed. The system may have an exhaust passage, an exhaust sensor located within the exhaust passage and configured to generate a...
8955309 Method for adapting an exothermic reaction in the exhaust system of a motor vehicle  
A method for adapting a thermal model of a catalyst is provided. The method comprises adjusting an amount of exhaust gas reductant upstream of the catalyst based on a thermal model of the catalyst,...
8955473 Strategy for engine cold start emission reduction  
A method for operating an engine having a cylinder head, comprising: following light-off of an exhaust catalyst from a cold-start condition, circulating liquid coolant through a cooling jacket of...
8950174 Catalysts for gasoline lean burn engines with improved NH3-formation activity  
Described is a catalyst comprising a substrate and a catalyst coating of two or more layers: (a) a first layer comprising Pd and Rh on the substrate; and (b) a second layer comprising Pt and/or Pd...
8943803 Power system with cylinder-disabling strategy  
A power system for use with an engine having at least one cylinder, and a piston, a fuel injector, and an exhaust valve associated with the at least one cylinder, is disclosed. The power system may...
8944036 Exhaust gas recirculation in a reciprocating engine with continuously regenerating particulate trap  
An engine and a method of operating an engine. One method includes: routing air to both a donor and a non-donor cylinder of an engine; combusting an air fuel mixture in the cylinders; routing...
8943811 Perovskite-based catalysts, catalyst combinations and methods of making and using the same  
One embodiment of the invention may include a method comprising providing a product comprising a substrate comprising a perovskite catalyst, NOx stored in or on the substrate and particulate matter...
8943798 Methods and systems for ammonia slip detection  
Various systems and methods are described for detecting ammonia slip. In one example method, an amount of exhaust gas recirculation is reduced when output from an exhaust gas sensor indicates an...
8943805 Method for detecting abnormality in reducing agent  
Disclosed is a method for detecting abnormality in a reducing agent 17 replenished to a reducing agent tank 14 in an exhaust emission control device for reduction and removal of NOx through...
8940259 Catalysed soot filter  
A catalyzed soot filter for a diesel engine comprises a wall flow substrate having a substrate axial length, wherein surfaces of both the internal walls of a plurality of inlet and a plurality of...
8938953 Exhaust gas purifying method  
A method of purifying an exhaust gas, includes: disposing a NOx trapping catalyst in an exhaust pipe of an internal combustion engine, the NOx trapping catalyst including: a metal substrate...