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Patent Searching and Data


Matches 551 - 600 out of 2,952

Document Document Title
WO/2005/104723A2
The present invention provides methods and apparatus for injecting fluid, such as an aqueous urea solution, into an exhaust stream in order to reduce oxides of nitrogen (NOx) emissions from diesel engine exhaust The present invention use...  
WO/2005/104723A3
The present invention provides methods and apparatus for injecting fluid, such as an aqueous urea solution, into an exhaust stream in order to reduce oxides of nitrogen (NOx) emissions from diesel engine exhaust The present invention use...  
WO/2005/098209A1
The invention relates to an installation for cleaning exhaust gases of a Diesel engine (1) of an electrogen group by means of a particle filter (2), said installation being mounted in the exhaust duct of the engine and characterised by a...  
WO/2005/093233A1
A device, for determination of the state of a soot particle filter (13) on a motor vehicle, comprising an electrical measuring arrangement as soot sensor, for determination of soot deposition, is disclosed. The measuring arrangement comp...  
WO/2005/090759A1
An exhaust filter regeneration regime is described in which a filter (20) is regenerated by triggering an exothermic reaction in the filter (20) to burn off particulate load. In order to attain the appropriate regeneration temperatures f...  
WO/2005/090761A1
An internal combustion engine has a separate exhaust passage for each one of banks. An exhaust purifying catalyst is provided in each exhaust passage. The mass flow rates G1, G2 of exhaust gas that flow through the exhaust passages are i...  
WO/2005/088097A1
An exhaust purifying apparatus estimates an accumulation amount of particulate matter trapped about a catalyst in an exhaust system. When the estimated accumulation amount is equal to or more than a permissible value, the apparatus execu...  
WO/2005/088086A1
A regeneration controller for an exhaust purification apparatus (36, 38) of an engine (2) that appropriately burns particulate matter accumulated in the exhaust purification apparatus. The regeneration controller includes an ECU (70) tha...  
WO/2005/088089A1
An exhaust purifying apparatus for an internal combustion engine includes an exhaust purifying mechanism, a fuel adding device, an electronic control device. The exhaust purifying mechanism is located in an exhaust passage and traps part...  
WO/2005/088090A1
An exhaust purifying apparatus for an internal combustion engine includes execution means, wherein, when an accumulation amount of particulate matter about a catalyst becomes less than a first determination value after a PM elimination c...  
WO/2005/088095A1
A regeneration controller for preventing a large amount of particulate matter from being suddenly burned without increasing the frequency a heating process is performed. The regeneration controller includes an ECU(70) for heating an exha...  
WO/2005/088094A1
A regeneration controller that prevents overheating when performing burn-up heating for completely burning particulate matter by intermittent fuel addition to an exhaust system or intermittent increase of fuel addition to the exhaust sys...  
WO/2005/088088A1
In an exhaust purifying apparatus, a fuel adding valve (31) supplies unburned fuel to an exhaust passage (14) of a diesel engine (10) so that particulate matter collected in a catalytic converter (33) is burned and removed. The supply of...  
WO/2005/088096A1
A regeneration controller for an exhaust purification apparatus (36, 38) of an engine (2) that appropriately burns particulate matter accumulated in the exhaust purification apparatus. The regeneration controller includes an ECU (70) tha...  
WO/2005/088087A1
An exhaust purifying apparatus for an internal combustion engine having a DPNR converter (26), a fuel adding device (46), and an electronic control device (50) is provided. The DPNR converter (26) is located in an exhaust passage (14) of...  
WO/2005/078250A1
An NOx reducing catalyst for reducing/purifying NOx using a reducing agent is installed on an engine exhaust pipe, and solenoid on/off valves for opening/closing an exhaust flow path and oxidizing catalysts mutually different in oxidizin...  
WO/2005/078253A1
The invention relates to a device and a method for determining the load state of a particle filter (1), embodied as a moulded body, for the purification of internal combustion engine exhaust gases, with a measuring device, comprising a p...  
WO/2005/078252A1
[PROBLEMS] To reduce a liquid amount required for regenerating a catalyst and a liquid amount required for keeping an NOx occluding reducing catalyst at at least a specified temperature. [MEANS FOR SOLVING PROBLEMS] An engine exhaust emi...  
WO/2005/078247A1
A collector is provided in each of a pair of exhaust gas passages parallelly extending from an internal combustion engine. Each collector collects black smoke particles (unclean substances) contained in an exhaust gas. One of a pair of p...  
WO2005042934A3
A catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to an apparatus intermittently using syngas such as valves (34) feeding NOx traps (35), for brief periods of time. During turndown times when syngas is not ...  
WO/2005/073525A1
The invention relates to a method for controlling a piston-type internal combustion engine (10) having an intake line (20) for delivering air to combustion chambers of the engine and an exhaust system (15, 22) for removing exhaust gases ...  
WO2004061273A8
A method for controlling the temperature and/or space velocity of exhaust gas provides control of the maximum temperature of the exhaust gas to prevent thermal damage to the Diesel engine components and associated aftertreatment devices ...  
WO/2005/068797A1
The invention relates to a method and device (10) for controlling the injection of reducing agent upstream from a catalyst (4) in an exhaust line (2) from a combustion engine. According to the invention, the injection of reducing agent i...  
WO/2005/061866A1
The invention relates to a method for operating a dosing valve (31) and to a device for carrying out said method, involving diagnosis of the dosing valve (31) in order to establish a through-flow rate of a reagent which is to be introduc...  
WO/2005/059328A1
The invention relates to a method for operating a particle filter (4) in the exhaust gas train of an internal combustion engine (1) of a motor vehicle, involving recurring soot combustion processes for the particle filter (4). According ...  
WO/2005/059329A1
In the case where an operating state of an internal combustion engine (1) belongs to a filter forced recovery region, filter forced recovery is performed (S106) when an amount of particulate matter deposited in a filter (20) becomes equa...  
WO/2005/060078A2
A circuit for providing a potential difference across a gap between two electrodes of a fuel reformer, oxides of nitrogen trap or soot filter regenerator for an internal combustion engine or the like. The circuit includes a power source,...  
WO/2005/052332A1
The inventive system for estimating quantities of pollution compounds emitted in the exhaust gas of a diesel engine for a motor vehicle comprises means for regenerating a solid particle filter and an electronic control unit which manages...  
WO/2005/052331A1
The invention relates to a method for regenerating a particle filter (10) integrated into an exhaust line (12) of an internal combustion engine (34), wherein the exhaust gas flows into the filter via an inflow surface (16) and exit the f...  
WO/2005/049986A1
The invention relates to a support system for the maintenance of a particle filter fitted in an exhaust system on a motor vehicle diesel engine, characterised in comprising means (1), for calculation of the volume of ash from engine lubr...  
WO2004113691A3
An exhaust system (10) for a vehicular lean-bum internal combustion engine (12) comprises a NOx reduction catalyst (18), a source of reductant, means (20) for contacting the catalyst (18) with the reductant, means (TC1) for sensing the t...  
WO2005005797A8
A system or method for controlling the delivery of fuel into the transient flow of an exhaust system (20) to control emissions. A mathematical model representative of the exhaust system (20) can be used to determine, based on operating c...  
WO/2005/042934A2
A catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to an apparatus intermittently using syngas such as valves (34) feeding NOx traps (35), for brief periods of time. During turndown times when syngas is not ...  
WO/2005/033482A1
An exhaust gas cleaner of an engine in which cleaning efficiency of Nox is enhanced by preventing clogging of an injection nozzle for supplying a reducing agent to the upstream side of exhaust gas of a reducing catalyst. Using a detectio...  
WO/2005/033480A1
An exhaust gas purification device of an engine, comprising an NOx reduction catalyst disposed in an engine exhaust pipe and reducing, for purification, NOx with ammonia generated from an urea solution, and an injection nozzle injecting/...  
WO/2005/033481A1
An exhaust gas purification device of an engine capable of increasing NOx removing rate by suppressing the deposition of the components (reducer solutes) of a reducer in an exhaust passage even if the temperature of exhaust gas from the ...  
WO2005005797A3
A system or method for controlling the delivery of fuel into the transient flow of an exhaust system (20) to control emissions. A mathematical model representative of the exhaust system (20) can be used to detennine, based on operating c...  
WO/2005/026507A1
The invention relates to an exhaust gas purification device for internal combustion engines and a method for operating the same. Known purification devices of said type comprise a soot particle filter (110) for filtering soot particles f...  
WO2004061273A3
A method for controlling the temperature and/or space velocity of exhaust gas provides control of the maximum temperature of the exhaust gas to prevent thermal damage to the Diesel engine components and associated aftertreatment devices ...  
WO/2005/005797A2
A system or method for controlling the delivery of fuel into the transient flow of an exhaust system (20) to control emissions. A mathematical model representative of the exhaust system (20) can be used to determine, based on operating c...  
WO/2005/003529A1
The invention relates to a method of estimating a nitrogen oxide mass stored in a catalytic nitrogen oxide trapping device (1) which comprises a catalytic phase and which is traversed by the exhaust gases (2) from the internal combustion...  
WO/2004/113691A2
An exhaust system (10) for a vehicular lean-bum internal combustion engine (12) comprises a NOx reduction catalyst (18), a source of reductant, means (20) for contacting the catalyst (18) with the reductant, means (TC1) for sensing the t...  
WO/2004/104383A1
A diesel engine exhaust gas-purifying device and control means enables a main DPF or micro DPF provided in an exhaust gas path of a diesel engine to serve in a wider operation range. A diesel engine exhaust gas-purifying device has a swi...  
WO/2004/104540A1
The regeneration responses of diesel engine exhaust filters are mapped by conducting multiple regeneration runs under controlled conditions of soot loading, exhaust temperature, exhaust flow rate, exhaust oxygen content and/or other rege...  
WO/2004/104395A1
Disclosed are a method for operating a part (14) disposed in an exhaust zone (12) of an internal combustion engine (10), and a device for carrying out said method. An exhaust gas component is introduced into said part (14) in a first pha...  
WO/2004/101964A1
This invention relates to a method of operating a catalyst for treating the exhaust gas of an internal combustion engine, the catalyst comprising, in addition to catalytically active noble metals, also storage components for storing hydr...  
WO/2004/101961A1
This invention provides a method of regenerating a diesel particulate filter in an exhaust-gas purification system of a diesel engine using lambda variation. During regeneration on demand, the ratio of air to fuel for the corresponding o...  
WO/2004/092555A1
The invention relates to a method for estimation by means of a physical model, of the thermal state of a catalytic nitrogen oxide trap, installed in the exhaust system of an internal combustion engine, comprising a modelling of the catal...  
WO/2004/081359A1
The process comprises the operations of; arranging a particulate filter (PT) in the exhaust duct (EP), generating, by indicator devices (S1-S5), electrical signals indicative of the values of parameters (NQ) of the operation of the engin...  
WO/2004/076036A1
This patent relates to an exhaust gas cleaning technique, and relevant system, and the chemical composition of the scrubbing fluid, particularly suited for motor vehicles, whose operating principle envisages the scrubbing of the exhaust ...  

Matches 551 - 600 out of 2,952