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Matches 351 - 400 out of 3,200

Document Document Title
WO/2012/004648A8
Utilizing the finding that the state of adsorption of NH3 on a selective reduction type NOx catalyst includes a weakly adsorbed state in which the adsorbed NH3 is useful for a reduction reaction of NOx and a strongly adsorbed state in wh...  
WO/2012/003448A3
A method (10) for injecting ammonia (NH3) into exhaust gas upstream of a catalyst of an aftertreatment system includes the steps of determining whether a regeneration event is imminent (14) on the basis of predetermined parameters, and d...  
WO/2011/162703A1
The invention relates to a method pertaining to an HC dosing system in which fuel in liquid form is supplied to a feed device (230) via which fuel is supplied to at least one consumption point (250) from a container (205), comprising the...  
WO/2011/162691A1
The invention relates to a method pertaining to HC dosing systems for exhaust cleaning which comprise a dosing unit (250) for fuel, comprising the step of deciding about a need, after cessation of an exhaust flow, to cool said fuel dosin...  
WO/2011/161350A2
The invention relates to a device comprising an injection system fed from a set of upstream pipes (3, 5, 9) and capable via a downstream pipe (6) of injecting a gaseous reducing agent into an exhaust line (7) upstream of a catalytic conv...  
WO/2011/162692A1
The invention relates to a method for cooling a dosing unit (250) pertaining to SCR systems for exhaust cleaning, comprising the steps, after cessation of exhaust flow, of cooling a reducing agent dosing unit (250) by means of reducing a...  
WO/2011/162684A1
The invention relates to a method pertaining to SCR systems which comprise a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning, and a container for reducing agent, comprising the step of choosing (s...  
WO/2011/162688A1
The invention relates to a method pertaining to SCR systems for exhaust cleaning, comprising the steps of deciding about a need, after cessation of an exhaust flow, to cool a reducing agent dosing unit (250), which forms part of the SCR ...  
WO/2011/162689A1
The invention relates to a method for cooling a dosing unit pertaining to HC dosing systems for exhaust cleaning which comprise a dosing unit (250) for fuel and a feed device (230) for said fuel, comprising the step of cooling said fuel ...  
WO/2011/162693A1
The invention relates to a method pertaining to a liquid supply system whereby liquid is supplied to a feed device (230) via which liquid is supplied to at least one consumption point (250), comprising the steps of determining presence o...  
WO/2011/162694A1
The invention relates to a method for cooling a dosing unit (250) pertaining to HC dosing systems for exhaust cleaning which comprise the dosing unit (250) for fuel and a feed device (230) to supply said fuel for cooling, comprising the ...  
WO/2011/162696A1
The invention relates to a method pertaining to an HC dosing system whereby fuel is supplied to a feed device (230) via which fuel is supplied to at least one consumption point (250) from a container (205), comprising the steps of determ...  
WO/2011/162702A1
The invention relates to a method pertaining to an SCR system in which reducing agent in liquid form is supplied to a feed device (230) via which reducing agent is supplied to at least one consumption point (250) from a container (205), ...  
WO/2011/162690A1
The invention relates to a method for cooling a dosing unit (250) pertaining to SCR systems for exhaust cleaning, comprising the step, after cessation of exhaust flow, of cooling a reducing agent dosing unit (250) by means of reducing ag...  
WO/2011/154802A1
A porous structure including a pair of electrodes disposed in a flow direction of exhaust gas and a solid electrolyte interposed between the electrodes is arranged in an exhaust passage of an internal combustion engine, and the amount of...  
WO/2011/145572A1
The disclosed SCR system can prevent erroneous indications of insufficient aqueous urea solution due to fluctuations in the liquid surface in an aqueous urea solution tank, preventing an engine from being unnecessarily prohibited from st...  
WO/2011/145571A1
Provided is a selective catalytic reduction (SCR) sensor wherein, even when the residual amount in a urea tank is small, the measurement accuracy of a quality sensor is not reduced. A quality sensor (122) is disposed between the minimum ...  
WO/2011/145568A1
Disclosed is an exhaust gas purification system (100) that can prevent adherence of aqueous urea in a dosing valve during DPF regeneration. When a DCU (126) has received a DPF regeneration authorization request from an ECM (125), the DCU...  
WO/2011/139877A2
A diesel engine and method for operating a diesel engine with exhaust after-treatment device regeneration capability are disclosed. The diesel engine may employ an exhaust after-treatment device such as a diesel particular filter to remo...  
WO/2011/139877A3
A diesel engine and method for operating a diesel engine with exhaust after-treatment device regeneration capability are disclosed. The diesel engine may employ an exhaust after-treatment device such as a diesel particular filter to remo...  
WO/2011/135043A1
Process for transferring a liquid from a passive tank (1) for storing the liquid to an active tank (2), using a pump intended for pumping the liquid held in the passive tank (1) and transferring it to the active tank (2), according to wh...  
WO/2011/133092A1
The present invention relates to a method for supply of additive to a catalytic exhaust cleaning process for cleaning of an exhaust flow from a combustion engine of a vehicle, which vehicle comprises control means for control of supply o...  
WO/2011/128543A1
The invention relates to a method and system for regenerating a particle filter. According to the invention, the method comprises the following steps: identifying a severe regeneration risk on the basis of the amount of soot in the parti...  
WO/2011/124465A1
The invention relates to a method and to a waste gas treatment device for regenerating a waste gas cleaning component (1). Said method consists of the following steps: i) at least one condenser (2) is charged, ii) at least one partial vo...  
WO/2011/125258A1
From the exhaust temperature and the addition flow rate of aqueous urea injected into the exhaust upstream side of an SCR converter, the disclosed device can estimate the per unit-of-time deposition rate for urea crystals deposited in an...  
WO/2011/121411A1
An exhaust gas control apparatus for an internal combustion engine includes: a DPF provided in an exhaust passage of an internal combustion engine, which traps PM in exhaust gas discharged from the engine; and a differential pressure sen...  
WO/2011/121201A1
The invention relates to a method of regenerating a particle filter (35) of a supercharged internal combustion engine (1) equipped with an EGR line (40, 50) for recirculating the burnt gases, during which method there are: a) a step of a...  
WO/2011/117492A1
A method for monitoring a system for treating the NOx present in the exhaust gases of an internal combustion engine using a reducing agent injected into the exhaust pipe upstream of an NOx reduction catalyst, said monitoring comprising t...  
WO/2011/119514A2
A control strategy selectively controls the heating of fluid lines (128) equipped with line heaters (130) that may be utilized with a selective catalytic reduction system (120). The control strategy measures a tank temperature representa...  
WO/2011/118095A1
An engine exhaust purification device that improves the NOx purification rate and minimizes ammonia slip in urea SCR. The engine exhaust purification device comprises: a selective reduction type NOx catalyst; a reducing agent adding devi...  
WO/2011/119514A3
A control strategy selectively controls the heating of fluid lines (128) equipped with line heaters (130) that may be utilized with a selective catalytic reduction system (120). The control strategy measures a tank temperature representa...  
WO/2011/118525A1
An engine exhaust purification device comprises: a selective reduction type NOx catalyst; an oxidation catalyst installed on the upstream side of the NOx catalyst; a reducing agent adding device that adds a NOx reducing agent to engine e...  
WO/2011/110760A3
The invention relates to a method for regulating the regeneration temperature of a particulate filter (14) for a vehicle engine, said engine including an exhaust line (10) comprising the following components disposed successively in the ...  
WO/2011/110760A2
The invention relates to a method for regulating the regeneration temperature of a particulate filter (14) for a vehicle engine, said engine including an exhaust line (10) comprising the following components disposed successively in the ...  
WO/2011/110920A1
An abnormality determination apparatus includes a particulate filter provided in the exhaust passage of an internal combustion engine that collects particulate matter in the exhaust gas discharged from the internal combustion engine, a p...  
WO/2011/104451A1
The invention relates to a method for controlling a system for the treatment of the exhaust gases present in an exhaust line of an internal combustion engine, said treatment involving using a gauge‑pump module to inject a reducing agen...  
WO/2011/104458A1
The invention relates to a method for controlling a system for treating the NOx present in an exhaust line of an internal combustion engine, said system comprising means for introducing a reducing agent into the exhaust line upstream of ...  
WO/2011/106291A1
A method for regenerating a particulate filter may comprise calculating a soot layer state correction factor based on a rate of regeneration and a rate of particulate loading in the particulate filter and calculating an estimated soot lo...  
WO/2011/104459A1
The invention relates to a method for regenerating a particle filter which includes a gas exhaust system associated with a combustion engine equipping a hybrid vehicle. According to said method, in the event of a stop control of the comb...  
WO/2011/102781A1
The present invention relates to an arrangement and a method for reducing the amount of nitrogen oxide in exhaust gases from a combustion engine. The arrangement comprises at least one sensor (18, 20, 27) adapted to detecting the value o...  
WO/2011/098696A1
The invention relates to a method for treating exhaust gas applied to an exhaust line for exhaust gas of a vehicle, the exhaust line including a particle filter, the method including a step (40) of determining the density of particles in...  
WO/2011/093771A1
The present invention comprises a method and a system for estimation of a deviation for at least one model variable of a catalyst model, which estimation is based on the catalyst model and on at least one measured sensor signal from at l...  
WO/2011/087819A3
Methods and systems are provided related to an emissions control system. The emissions control system has an exhaust after-treatment system defining a plurality of distinct exhaust flow passages through which at least a portion of an exh...  
WO/2011/087430A1
The invention relates to a method for warming a reductant in an SCR system which comprises a container (205) for said reductant and a dosing unit (250). The method comprises the step of extracting at least part of said reductant from sai...  
WO/2011/082401A3
A method of controlling an internal combustion engine and exhaust system having an SCR, and engine and exhaust system including an SCR, described herein, monitors, in real time, NOx conversion efficiency of an exhaust flow output by the ...  
WO/2011/079928A1
In a method for regenerating a particle filter, a triggering limit is specified, namely in the form of a pressure difference Δptrigger across the particle filter (4), which pressure difference results for a particular working interval (...  
WO/2011/082401A2
A method of controlling an internal combustion engine and exhaust system having an SCR, and engine and exhaust system including an SCR, described herein, monitors, in real time, NOx conversion efficiency of an exhaust flow output by the ...  
WO/2011/078981A1
A power system (1) comprising an engine (10) that produces exhaust, a fuel system (20) that injects a fuel into the engine, an aftertreatment system (50) that treats the exhaust, and a controller (71). The aftertreatment system includes ...  
WO/2011/072250A3
A system to detect the presence of a catalyst includes a catalyst housing (102), a first temperature sensing device (204), a second temperature sensing device (206), a flow rate measurement device (208), and a processing device (210). Th...  
WO/2011/072250A2
A system to detect the presence of a catalyst includes a catalyst housing (102), a first temperature sensing device (204), a second temperature sensing device (206), a flow rate measurement device (208), and a processing device (210). Th...  

Matches 351 - 400 out of 3,200