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Patent Searching and Data


Matches 151 - 200 out of 2,951

Document Document Title
WO/2012/038627A1
The invention relates to a procedure (1) for estimating the current loading (MC) of a filter, consisting especially in identifying an engine operating mode corresponding to an operating phase of the particulate filter, especially when th...  
WO/2012/035774A1
A method for warming an after-treatment burner system configured in a manner such that a burner (14) is provided upstream from a particulate filter (12) (exhaust purifying material) installed in an exhaust pipe (11) and combustion by the...  
WO/2012/033704A2
A diesel particulate filter system comprising: a temperature sensor on the inlet side of the diesel particulate filter; a temperature sensor on the outlet side of the diesel particulate filter; a pressure sensor on the inlet side of the ...  
WO/2012/033704A3
A diesel particulate filter system comprising: a temperature sensor on the inlet side of the diesel particulate filter; a temperature sensor on the outlet side of the diesel particulate filter; a pressure sensor on the inlet side of the ...  
WO/2012/029606A1
[Problem] To provide a working machine provided with an electric load application means and capable of burning particulate matter trapped by a filter of an exhaust gas purification device even when an electrically-driven system including...  
WO/2012/030275A1
The present invention relates to a method pertaining to regeneration of a particle filter (202) pertaining to a combustion process, which filter is arranged to treat exhaust gases arising from combustion in a combustion engine (101). The...  
WO/2012/030279A1
The present invention relates to a method and a system for estimation of a soot load in a particle filter in an exhaust cleaning system, which estimation involves using a pressure drop across said particle filter in order to determine sa...  
WO/2012/030278A1
The present invention relates to a method and a system for estimation of an ash level in a particle filter in an exhaust cleaning system, whereby - a partial regeneration of said particle filter is effected when a soot load of said parti...  
WO/2012/029628A1
[Problem] To provide a hydraulic working machine capable of recovering, as electric power, energy used to increase a load for an engine when particulate matter in exhaust gas is burned. [Solution] The present invention is configured such...  
WO/2012/030280A1
The present invention relates to a method and a system for regulating a temperature T DPF in a particle filter which is situated downstream of an oxidation catalyst in an exhaust cleaning system and has an inlet temperature T in_DPF whic...  
WO/2012/024653A2
Systems and methods for skip fire spark ignition engine operation with a lean NOx trap after-treatment are provided. This system includes engine control circuitry capable of fueling and firing subsets of the engine's cylinders. Other cyl...  
WO/2012/024653A3
Systems and methods for skip fire spark ignition engine operation with a lean NOx trap after-treatment are provided. This system includes engine control circuitry capable of fueling and firing subsets of the engine's cylinders. Other cyl...  
WO/2012/021103A1
The present invention relates to an arrangement for controlling the injection of a reducing agent in an exhaust line of a combustion engine (1). The arrangement comprises an injection system (8-12) adapted to injecting the reducing agent...  
WO/2012/018186A2
Disclosed is an after treatment device of an engine, which comprises: an urea solution injection section (3) for injecting an urea solution to exhaust gas that is discharged from a combustion chamber of an engine (1) to the outside via a...  
WO/2012/018186A3
Disclosed is an after treatment device of an engine, which comprises: an urea solution injection section (3) for injecting an urea solution to exhaust gas that is discharged from a combustion chamber of an engine (1) to the outside via a...  
WO/2012/014037A1
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 pollutant-removing agent and which is arranged...  
WO/2012/004673A2
A control device of an internal combustion engine switches the air-fuel ratio of in-cylinder gas from a lean first air-fuel ratio for normal operation to a rich second air-fuel ratio, and carries out intake air restriction during a switc...  
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/2012/004673A3
A control device of an internal combustion engine switches the air-fuel ratio of in- cylinder gas from a lean first air-fuel ratio for normal operation to a rich second air- fuel ratio, and carries out intake air restriction during a swi...  
WO/2012/004648A1
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/2011/162702A1
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/2011/162692A1
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/2011/162693A1
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/2011/162684A1
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/2011/162690A1
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/2011/162691A1
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/2011/162689A1
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/2011/161350A2
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/2011/162696A1
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/2011/162688A1
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/2011/154802A1
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/2011/145571A1
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/2011/145572A1
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/2011/145568A1
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/2011/139877A3
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/2011/139877A2
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/2011/135043A1
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/2011/125258A1
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/2011/124465A1
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/2011/121201A1
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/2011/121411A1
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/2011/119514A3
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/2011/119514A2
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/2011/117492A1
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/2011/118525A1
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...  

Matches 151 - 200 out of 2,951