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Patent Searching and Data


Matches 501 - 550 out of 2,703

Document Document Title
WO/2014/159041A1
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 exhaust treatment fluid in the tank using...  
WO/2014/149872A1
An exhaust after-treatment system for treating an exhaust produced by an engine. The exhaust after-treatment system may include an exhaust passageway in communication with the engine, and an exhaust treatment component provided in the ex...  
WO/2014/149893A1
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 system's components for determining the quantit...  
WO/2014/139617A1
The invention relates to an exhaust gas aftertreatment system for an internal combustion engine, in particular for an internal combustion diesel engine, comprising an exhaust gas section (1) in which an oxidation catalytic converter (3) ...  
WO/2014/137272A1
The invention concerns a method for an HC dosing system comprising a dosing unit (250) for dosing fuel into an engine exhaust duct (290) upstream of a particulate filter (270) for purifying exhaust from said engine, wherein said HC dosin...  
WO/2014/137269A1
In a method for exhaust cleaning at a combustion engine, exhaust gases are caused to pass through a particulate filter which is part of a filter configuration and in which particles from the exhaust gases are oxidised. The method compris...  
WO/2014/137280A1
The invention pertains to a method for the selection of maximum reducing agent dosage at an SCR system for exhaust purification, where evaporation of a dosed amount of reducing agent is required. The method comprises the step to: - selec...  
WO/2014/133817A1
An exhaust treatment system may include a burner, a flame sensor assembly and a control module. The flame sensor assembly may be at least partially disposed within the burner and may include an insulator and an electric heating element i...  
WO/2014/084534A9
The present invention relates to a method for controlling multiple SCR denitrification systems for denitrifying exhaust fumes and, more specifically, to a method for controlling multiple denitrification systems using one outlet analyzer ...  
WO/2014/126920A1
Systems, methods, and apparatuses are provided for determining an SCR component sulfur value, determining whether the SCR component sulfur value exceeds a sulfur regeneration threshold and increasing an engine NO amount incident to an SC...  
WO/2014/126527A1
The invention concerns a method for troubleshooting an SCR system comprising a dosing unit (250) for dosing reducing agent into the exhaust duct (290) of an engine upstream of an SCR catalytic converter (270) to reduce the NOx level in a...  
WO/2014/085354A9
Method, apparatus, and system to control ammonia slip in a selective catalytic reduction (SCR) system. The method includes detecting an engine operation transition event, increasing NOx to the SCR catalyst, and decreasing a reductant dos...  
WO/2014/108619A1
The invention relates to a method for monitoring the nitrogen oxide decontamination in an exhaust line (L) comprising switching from an SCR mode to an LNT mode when the SCR tank (8) is empty or contains a minimum SCR agent quantity criti...  
WO/2014/105624A1
Disclosed embodiments include methods of removing carbon dioxide from combustion gas from an engine of a vehicle, systems for removing carbon dioxide from combustion gas from an engine of a vehicle, vehicles, methods of managing carbon d...  
WO/2014/095215A1
The invention relates to a method for diagnosing an exhaust gas catalytic converter (28) arranged in an exhaust gas system (20) of an internal combustion engine (12) for the catalytic conversion of at least one exhaust gas component from...  
WO/2014/085075A1
An exhaust system including a plurality of exhaust treatment devices, plurality of injectors for dosing an exhaust treatment fluid into an exhaust stream, and a controller for controlling each of the plurality of injectors. The controlle...  
WO/2014/079535A1
A reciprocating internal combustion engine with an emission control device and a method for operating same are described. At least one throttle, arranged on the intake side, at least one main fuel injection nozzle for feeding a main fuel...  
WO/2014/072607A1
The invention concerns a device for purifying the exhaust gas of a motor vehicle, in which a controller (9) is configured to; apply a calculation model delivering a value indicative of a speed of storage of nitrogen oxides in a nitrogen ...  
WO/2014/064502A1
A vehicle includes an engine, an electrically heated catalyst configured to purify exhaust gas of the engine, and a controller configured to control energizing power to the electrically heated catalyst. The controller is configured to de...  
WO/2014/061946A1
The present invention relates to a multi-step regeneration device of a DPF for removing soot by generating a load from an engine, comprising: an outside air temperature sensor for measuring the temperature of outside air; a controller fo...  
WO/2014/058201A1
The present invention relates to a safety device for preventing working-apparatus operation during the regeneration of a forklift-truck diesel-exhaust-gas after-treatment device. According to the present invention, the safety device for ...  
WO/2014/048527A1
The invention relates to a method for operating an internal combustion engine and an adequately designed internal combustion engine. In said method, an injection valve post-injects fuel into at least one cylinder (16, 18, 20, 22) of the ...  
WO/2014/040710A1
The invention relates to a method and an arrangement for operating an internal combustion engine. In the method a first distribution (10) of values for at least one variable (G) is used, the variable (G) describing a physical property of...  
WO/2014/038724A1
A particulate filter (24) for trapping particulate filter which is contained in exhaust gas is arranged in an engine exhaust passage. The particulate filter is provided with exhaust gas inflow passages and exhaust gas outflow passages wh...  
WO/2014/030953A1
Disclosed are a method for controlling the expression of the active regeneration time for a diesel engine exhaust after-treatment device, and a method for controlling active regeneration. The method for controlling the expression of the ...  
WO/2014/029301A1
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 two-stage PWM control method for controlli...  
WO/2014/020251A1
The invention primarily concerns a method for controlling a particle filter that filters particles contained in the exhaust gases of a motor vehicle, on the basis of the level of damage of same. During a regeneration of the particle filt...  
WO/2014/016594A1
Method of controlling operation of an exhaust fluid treatment apparatus An exhaust flow treatment apparatus may be used to treat exhaust flow emitted by a combustion engine. The exhaust flow treatment apparatus may be configured to recei...  
WO/2014/014399A1
The invention relates to a method pertaining to an SCR system wherein a reducing agent is provided to an exhaust gas stream from an engine (230) for purifying said exhaust gas with respect to among other things content of NOx, wherein sa...  
WO/2014/012096A1
A method and system for mitigating a urea deposit within an SCR system (150) that includes determining (406) a mass of an accumulated urea deposit present within SCR catalyst (152) and piping (34), comparing (408) the mass of the accumul...  
WO/2014/007752A1
The invention relates to a method for, by means of a reducing agent, purifying exhaust gas in an exhaust gas flow from an engine (230) in an SCR system comprising two SCR catalyst configurations (260, 265) arranged in series in said exha...  
WO/2014/007749A1
The present invention relates to a method for estimating an accumulation of sulfur in an aftertreatment system (200), wherein said aftertreatment system (200) is designed for treatment of an exhaust-gas stream resulting from a combustion...  
WO/2014/001733A1
The invention proposes a method for diagnosing a system for storing a gas, the gas being stored by sorption on a compound, the system being mounted onboard a vehicle and comprising a tank capable of containing the compound and a control ...  
WO/2013/192211A1
According to one embodiment, an apparatus for controlling the regeneration of a particulate filter (150) of an internal combustion engine system (100) includes an operating conditions module (250) that is configured to monitor at least o...  
WO/2013/185862A1
The invention relates to a method for operating a motor vehicle exhaust gas system (10) through which exhaust gas of an internal combustion engine can flow and which comprises at least one oxidation catalyst (14) and at least one particl...  
WO/2013/165309A1
The invention concerns an exhaust gas aftertreatment system (2) adapted so as to reduce the amount of N2O that is produced in a selective catalytic reduction catalytic converter (SCR catalytic converter) (6) and/or in an ammonia slip cat...  
WO/2013/165302A1
The invention relates to an exhaust post-treatment system (2) for a combustion engine (4) which produces an exhaust flow (6), which system (2) comprises at least one diesel oxidation catalyst (DOC) and/or at least one diesel particle fil...  
WO/2013/158063A1
A method for managing ammonia dosing during a regeneration event for a nitrogen oxide particulate filter (NPF) includes a selective catalytic reduction system and a particulate filter. Embodiments include utilizing monitored pressure cha...  
WO/2013/149717A1
The invention relates to a method for operating an exhaust gas system that has a metering device through which a reduction means can be added to the exhaust gas for exhaust gas after-treatment. A particle filter is regenerated, wherein a...  
WO/2013/148046A1
Various methods and systems are provided for an engine system for a vehicle. In one example, the engine system includes a turbocharger including a turbine, the turbocharger configured to be driven via exhaust gas from an engine during a ...  
WO/2013/147653A1
The invention concerns a method for diagnosing a selective catalytic reduction (SCR) catalyst (5) of an exhaust aftertreatment system (1) of an internal combustion engine (2), wherein said exhaust aftertreatment system (1) comprises a SC...  
WO/2013/147273A1
Provided is a heating method of a honeycomb structure that enables the honeycomb structure to satisfactorily generate heat with little temperature irregularity during the heat generation and with a small amount of power consumption. This...  
WO/2013/141793A1
The invention relates to a method for cleaning an SCR system whereby reducing agent is supplied to an exhaust flow upstream of an SCR catalyst (260), ΝΟx contents of the exhaust flow are determined upstream and downstream of said SCR c...  
WO/2013/141779A1
The invention relates to a method for safety improvement when a motor vehicle (100) comprising a power train with an engine (230), automatic gearbox (240) and torque converter (237) is stationary and particle filter (320) for the exhaust...  
WO/2013/132624A1
This device for detecting the state of a diesel particulate filter comprises: a first pressure detection means for detecting a first pressure on the upstream side of a filter in an exhaust flow passage in order to precisely determine the...  
WO/2013/127936A1
The invention relates to a method for operating an exhaust gas treatment device (1) comprising an electric heater (2) for heating an exhaust gas flow in the exhaust gas treatment device (1) and/or a surface (25) in the exhaust gas treatm...  
WO/2013/130810A1
An automotive selective catalytic reduction (SCR) system assembly includes a holder for receiving an SCR system sensor. The holder has a tube, a chamber, and a retainer. The tube receives incoming fluid from a first SCR line and leads ex...  
WO/2013/126575A1
A method of heating an exhaust gas in an exhaust after treatment system including a Diesel Oxidation Catalyst (DOC) and a diesel particulate filter (DPF) is provided. The method includes heating the exhaust gas to a predetermined tempera...  
WO/2013/115475A1
The present invention relates to a method for controlling the regeneration of a diesel particulate filter (DPF) in construction machinery. The method for controlling the regeneration of a DPF in construction machinery, according to the p...  
WO/2013/111944A1
The present invention relates to a method for ensuring the compulsory recycling of diesel particulate filters. According to the present invention, the method for ensuring the compulsory recycling of diesel particulate filters (DPF) inclu...  

Matches 501 - 550 out of 2,703