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Matches 1 - 50 out of 1,688

Document Document Title
WO/2014/126527
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/2014/126920
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/2014/108619
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/2014/105624
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/2014/095215
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/2014/084534
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/2014/085354
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/2014/085075
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/2014/085354
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/2014/079535
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/2014/072607
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/2014/064502
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/2014/061946
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/2014/058201
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/2014/048527
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/2014/040710
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/2014/038724
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/2014/029301
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/2014/030953
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/2014/025647
A particular trap is regenerated without the use of heat. The regeneration is accomplished using a valving mechanism for periodically creating a reverse pressure throughout the entire trap, after the reverse pressure is created controls ...  
WO/2014/020251
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/2014/016594
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/2014/014399
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/2014/012096
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/2014/007752
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/2014/007749
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/2014/001733
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/2013/190210
The invention relates to an exhaust gas treatment system 2 comprising a catalytic particulate filter 11, a catalytic reduction device 12 for the reduction of nitrogen oxides, which is mounted downstream of the catalytic particulate filte...  
WO/2013/192211
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/2013/185862
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/2013/165309
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/2013/165302
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/2013/158063
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/2013/149717
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/2013/147273
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/2013/147653
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/2013/148046
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/2013/141779
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/2013/141793
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/2013/132624
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/2013/130810
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/2013/127936
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/2013/126575
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/2013/115475
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/2013/112529
A controller (116,200) is configured to receive an input signal from a connection device (128) of one or more aftertreatment components (118, 120, 122,0124) in an aftertreatment system for an internal combustion engine (104). The control...  
WO/2013/111944
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...  
WO/2013/102845
A secondary air supply system includes an electric air pump (9) that supplies secondary air to a location upstream of an exhaust gas purification catalyst arranged in an exhaust passage; a control valve that opens/closes a secondary air ...  
WO/2013/093511
A hydraulic system including hydraulic fluid, a hydraulic machine (142) for pressuring the hydraulic fluid, a hydraulic circuit for delivering the hydraulic fluid to a hydraulic actuator (103A, 103B), the hydraulic machine (142) being co...  
WO/2013/094894
The active regeneration control device for a diesel particulate filter (DPF) according to the present invention comprises: an active regeneration determining unit for judging the active regeneration time for a diesel particulate filter (...  
WO/2013/095214
The object of the present invention is to provide an inventive exhaust system (6) for receiving an exhaust gas. The exhaust system (6) comprising a first SCR catalyst (10) and a second SCR catalyst (16) positioned downstream of said firs...  

Matches 1 - 50 out of 1,688