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WO/2008/153695 |
A method is provided for compensating for factors affecting particulate matter accumulation within an aftertreatment element (20) of an engine exhaust system (16). The method comprises determining rate of change of flow resistance throug...
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WO/2008/150374 |
An exhaust treatment system (12) associated with a power source (10) is disclosed. The exhaust treatment system may have a filter (42) located to remove particulate matter from a flow of exhaust, and a regeneration device (45) located pr...
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WO/2008/149213 |
An internal combustion engine exhaust gas purification apparatus purifies exhaust gas using a NOx storage-reduction catalyst unit (22) and a NOx selective reduction catalyst unit (23). The NOx selective reduction catalyst unit (23) is pr...
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WO/2008/150019 |
The present invention is intended to control the degree of dispersion of a reducing agent added to an exhaust gas flowing into an exhaust gas purification apparatus. Before addition fuel is added by a fuel addition valve, a valve opening...
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WO/2008/150372 |
A method is provided for compensating for variability in ash accumulation rates within an aftertreatment element (18) of an engine (12) exhaust system (16). The method includes determining flow resistance values through the aftertreatmen...
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WO/2008/145566 |
The invention relates to a method and a device for operating a motor vehicle (1) which comprises a drive (2) and an exhaust gas system (3) having at least one adjustable heating device (4) that can be brought in contact with the exhaust ...
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WO/2008/142321 |
The invention relates to a method of injecting a reducing agent into an exhaust line of an engine, the reducing agent being intended to be used to chemically reduce, during a selective catalytic reduction reaction, called SCR, nitrogen o...
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WO/2008/138682 |
The invention relates to a diagnostic method for a reagent material to be introduced into an exhaust gas region (11) of an internal combustion engine (10), or a precursor of the reagent material, which is required to convert at least one...
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WO/2008/139146 |
A reaction vessel (368) comprises a liquid level of urea solution and a gaseous hydrolysis product having a gas ratio which contains at least some amount of ammonia gas. The production of the gaseous hydrolysis product is controlled by r...
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WO/2008/138849 |
The present invention relates to a method for the detection of particles in a gas flow with a sensor element comprising at least two electrodes, by applying a measurement voltage to the electrodes of the sensor element during a measureme...
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WO/2008/138023 |
The invention relates to a method for the operation of a filter arrangement for the separation of soot particles out of the exhaust-gas flow of a diesel engine, in which method the exhaust-gas flow is conducted through ducts (5) of a cer...
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WO/2008/139146 |
A reaction vessel (368) comprises a liquid level of urea solution and a gaseous hydrolysis product having a gas ratio which contains at least some amount of ammonia gas. The production of the gaseous hydrolysis product is controlled by r...
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WO/2008/135535 |
The method according to the invention for providing ammonia for the selective catalytic reduction of nitrogen oxides in the exhaust system of an internal combustion engine comprises the following steps: a) recording at least one actuatin...
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WO/2008/129184 |
The invention relates to a method for urea injection in an exhaust line muffler of an engine (1), the urea containing ammonia which is used to chemically reduce, in a selective catalytic reduction reaction, called SCR, the nitrogen oxide...
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WO/2008/115843 |
A method for simultaneously measuring one or more properties (e.g. temperature, concentration of NOx and ammonia, etc) in an exhaust gas mixture. Signals from one or more sensors that are cross-sensitive to one or more gases can be combi...
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WO/2008/115843 |
A method for simultaneously measuring one or more properties (e.g. temperature, concentration of NOx and ammonia, etc) in an exhaust gas mixture. Signals from one or more sensors that are cross-sensitive to one or more gases can be combi...
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WO/2008/107598 |
The invention relates to an electrostatic filter device of the type including at least one basic filtration module defining, in the inside thereof, a housing (1) for the exhaust gases and having, upstream from the flow, a particle electr...
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WO/2008/108955 |
A fluid injector (46) for use in an exhaust treatment system (14) is disclosed. The fluid injector may have a nozzle portion, a heater (106) associated with the nozzle portion, and a controller (150) in communication with the heater. The...
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WO/2008/105996 |
An engine exhaust treatment system (20) is provided. The system may include a catalyst-based device (30) including a catalyst (32) configured to reduce an amount of NOx in exhaust gases produced by an engine (18), by using ammonia stored...
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WO/2008/103113 |
The invention relates to a system and an on-board-diagnosis method for an exhaust aftertreatment system (10) of an engine (12) comprising a diesel particulate filter unit (60) which encompasses a particulate filter (64) in which soot can...
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WO/2008/103111 |
The present invention relates to an exhaust gas after treatment system comprising, a diesel particulate filter unit (DPFU) provided downstream of a diesel engine, a selective catalytic reduction (SCR) arrangement provided in fluid commun...
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WO/2008/090433 |
An exhaust line fuel injection system (1) and associated methods of operation and control are disclosed. The fuel passes through a regulating valve (11, 60, 70, 80) having an inlet (62, 81) connected to a pressurized fuel source (20) and...
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WO/2008/083917 |
The invention relates to a method for controlling the temperature of a gas post-treatment system (21, 22) in the exhaust circuit (2) of a thermal engine (10) having a more or less rich combustion mode, in which at least post-treatment me...
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WO/2008/081286 |
An exhaust gas control apparatus for an internal combustion engine, which has a three-way catalyst (21) and a NOX storage-reduction catalyst (22), also includes rich controlling means for performing control to make an air-fuel ratio of e...
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WO/2008/082464 |
An exhaust treatment system (10) of a power source system includes a filter (20) having an inlet (23) and an outlet (25) and a first exhaust line (14) located between the filter and a power source (12) of the power source system. The exh...
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WO/2008/082467 |
An exhaust gas treatment system (10, 100, 200, 300) of an internal combustion engine (12) includes a selective catalytic reduction catalyst (19) fluidly connected to the internal combustion engine (12), an oxidation catalyst fluidly conn...
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WO/2008/081286 |
An exhaust gas control apparatus for an internal combustion engine, which has a three-way catalyst (21) and a NOX storage-reduction catalyst (22), also includes rich controlling means for performing control to make an air-fuel ratio of e...
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WO/2008/079299 |
One embodiment is a method including a unique soot loading metric. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.
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WO/2008/079183 |
A particulate trap regeneration system is provided, which may include a particulate trap (24) having a filter medium configured to remove one or more types of particulate matter from an exhaust flow of an engine and a regeneration device...
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WO/2008/072265 |
A control system (1,1') is described for a condensate sensor (2) for boilers, comprising a condensate sensor (2) positioned in an exchanger of said boiler so that when said condensate forms in the exchanger the sensor (2) is in contact w...
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WO/2008/065287 |
Exhaust system for an internal combustion engine (1) of a motor vehicle which is equipped with a first oxidation catalytic converter or precatalytic converter (4) positioned near the outlet of gas from the engine, and with a particulate ...
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WO/2008/061896 |
Proposed is a method for assessing the completeness of a regeneration of a particle filter (10) which is traversed by the exhaust gas of an internal combustion engine (12), wherein a pressure difference (dp) which is generated across the...
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WO/2008/059166 |
The invention relates to a method for the calibration and/or management of an exhaust line of a motor vehicle comprising a particle filter (X), said method comprising an initial step of measuring, over a representative population of the ...
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WO/2008/054631 |
An exhaust treatment system (14) for a combustion source (10) is disclosed. The exhaust treatment system may have a supply of catalyst (38) configured to lower the combustion threshold value of an exhaust constituent, and an injector (42...
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WO/2008/053105 |
A method of regenerating a PF (4a,4b) of an exhaust line of a diesel engine, intended to eliminate at least some of the soot particles trapped in said PF during the operation of said engine, comprises the following steps: producing ozone...
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WO/2008/054632 |
A method (1000) of regenerating a particulate filter (34, 40) is disclosed. The method involves heating the particulate filter to an intermediate temperature, and maintaining the particulate filter at the intermediate temperature until s...
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WO/2008/054627 |
An exhaust system (12) for a combustion engine (10) is disclosed. The exhaust system (12) may have a housing (20) connected to receive a flow of exhaust. The exhaust system (12) may also have a first catalyst (22) disposed within the hou...
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WO/2008/050049 |
The device comprises a temperature sensor (17) sensing the temperature Tupstreamupstream of a catalytic oxidation means and a regulator (20) receiving the difference between the temperature Ts measured downstream of the catalytic convert...
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WO/2008/047017 |
The invention relates to a system for treating the exhaust gases of a diesel engine (1) fitted with a turbocharger (2) equipped with a turbine (4) and with a compressor (3), said system comprising a fuel injector (7) and one or more devi...
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WO/2008/040905 |
The invention relates to a method and to a device for performing diagnostics on a system for eliminating particles from exhaust gases of a vehicle. The diagnostics method involves at least a first step of detecting failure of a switch (1...
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WO/2008/040898 |
The invention relates to a system (1) for estimating the amount of particles trapped in a particle filter (FAP) (4) with which an exhaust line (11) of a vehicle diesel engine (7) is equipped, the system comprising: first, second and thir...
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WO/2008/037901 |
The invention relates to a method for controlling the regeneration of an anti-pollution system placed on an exhaust line (3) of an internal combustion engine (1), wherein, in order to carry out said regeneration, fuel is injected into th...
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WO/2008/037902 |
The invention relates to a control device for an engine assembly with a diesel engine for a motor vehicle. When a predetermined value of pressure difference on either side of a particle filter has been reached but when a predetermined pa...
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WO/2008/034662 |
The invention relates to a filter element (18), in particular for filtering exhaust gases of an internal combustion engine (10), wherein the filter element (18) has electrically conducting elements (42) on its outside (36) for a measurem...
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WO/2008/036466 |
Gas treatment systems are described that allow for modular development of gas treatment systems, for example exhaust gas aftertreatment systems, using generally standardized parts. A number of subsections are provided, including a treatm...
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WO/2008/034747 |
A method is proposed for operating a metering valve (22) which is realized as a solenoid valve which is actuated by an electromagnet (23) which interacts with an armature which is connected fixedly to a valve needle and, furthermore, is ...
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WO/2008/033082 |
System and method for regenerating a diesel particulate filter (54) in the exhaust system of an internal combustion engine (15) driven vehicle that is equipped with an automatic mechanical transmission (AMT, 20). The particulate load in ...
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WO/2008/012646 |
An individual exhaust passage is provided independently for each cylinder group in an internal combustion engine having a plurality of cylinder groups each having a plurality of cylinders. A first catalyst is provided in each of the indi...
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WO/2008/012646 |
An individual exhaust passage is provided independently for each cylinder group in an internal combustion engine having a plurality of cylinder groups each having a plurality of cylinders. A first catalyst is provided in each of the indi...
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WO/2008/006984 |
The invention relates to a method of controlling the consumption of urea intended to be used in a selective catalytic reduction (of SCR type) processing system for nitrogen oxides, installed in the exhaust line of the engine of a vehicle...
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