| Document |
Document Title |
|
WO/1994/003711A1 |
A process and device are disclosed for determining the load level of a particle filter (10) provided in the exhaust gas system (11) of a Diesel engine. The pressure drop DELTA pfilter across the particle filter (10) is measured by a firs...
|
|
WO/1993/025805A1 |
An NOx absorbing agent (17) is disposed inside an exhaust gas passage of a combustion engine. This NOx absorbing agent (17) absorbs NOx when the air/fuel ratio of exhaust gas flowing thereinto is lean, and discharges NOx which it has abs...
|
|
WO/1993/025806A1 |
An NOx absorbing agent (17) is disposed inside an exhaust gas passage of a combustion engine. This NOx absorbing agent (17) absorbs NOx when the air/fuel ratio of exhaust gas flowing thereinto is lean, and discharges NOx which it has abs...
|
|
WO/1993/021428A1 |
An active noise cancellation muffler for automotive and industrial use as shown in the figure comprises a muffler chamber, an internal plate with an attached pipe mounted inside the muffler chamber dividing the muffler chamber into first...
|
|
WO/1993/020340A2 |
The methods described for assessing the operatability of a catalytic converter fitted in the exhaust of an internal-combustion engine make use of the fact that the conversion-onset temperature for a catalytic converter is higher the olde...
|
|
WO/1993/017228A1 |
A device for operating an electrically heatable catalytic converter (2) with a circuit designed for an electric power of some 0.5 to 10 kW, comprising a current source (6), a power switch (20), an electrically heatable catalytic converte...
|
|
WO/1993/014305A1 |
The description relates to a process for monitoring a catalytic exhaust gas purifying system of an internal combustion engine, especially for motor vehicles, which makes it possible separately to monitor a pre-catalyser (1) belonging to ...
|
|
WO/1993/012863A1 |
In an exhaust gas path of an engine, there is disposed an NOx absorbent (18) for absorbing NOx when an air-fuel ratio of the flowing-in exhaust gas is lean and for releasing the absorbed NOx when an oxygen concentration in the flowing-in...
|
|
WO/1993/010339A1 |
A dynamically variable exhaust system provides for maximum efficiency of an internal combustion engine (30) by including an exhaust control device (35) which is operated by a control mechanism (33) and managed by a control unit (32). The...
|
|
WO/1993/008382A1 |
A sensor is disclosed for detecting the level of particle accumulation in a particulate filter (32) having a filter material (41) effective to extract particulates from the exhaust gas flow of an internal combustion engine (12). The sens...
|
|
WO/1993/008383A1 |
An exhaust and purification device for an internal combustion engine in which an NOx absorbent (19) is disposed in an exhaust passageway of the internal combustion engine, and an NOx oxidizing agent (18) is disposed upstream of the NOx a...
|
|
WO/1993/007363A1 |
NOx absorbent (18) is disposed in the exhaust gas path in the internal combustion engine and exhaust gas is adapted to flow constantly through said absorbent (18) during the operation of said engine. NOx absorbent (18) absorbs NOx when a...
|
|
WO/1993/005388A1 |
In an apparatus for detecting the accumulation of particulate material on a filter medium formed of dielectric material and disposed in a chamber, the apparatus being operable for generating and transmitting an RF signal through the filt...
|
|
WO/1992/021863A1 |
The mean oxygen richness (S0) of the exhaust gases is measured during a first engine operating phase during which the device for injection of air (2, 5, 6) is active and the mean oxygen richness (S1) of the air/exhaust gases mixture is m...
|
|
WO/1992/014631A1 |
An electrical supply system for a vehicle having a combustion engine. The system comprises a generator (16) and a battery accumulator (10) for respectively generating and storing of electricity together with at least one intermittently-w...
|
|
WO/1992/014912A1 |
The invention concerns a method and a device for catalyst emission control in motor vehicles. An emission control system in accordance with the invention comprises an electrically heated start-up catalyst (4) which is positioned adjacent...
|
|
WO/1992/006284A1 |
Trap muffler apparatus (242) with bypass to a common reactive acoustic element (250, 270) is disclosed. Bypass structure varies from external bypass to a common acoustic element (250, 270) to annular bypass of the ceramic filter to axial...
|
|
WO/1992/003642A1 |
In a process for monitoring of the catalytic activity of a catalyst in the exhaust gas system of an internal combustion engine (3), a measured value of is temperature derived from signals generated by at least two temperatures probes (4,...
|
|
WO/1992/003643A1 |
In a process for monitoring the function of a catalytic converter (1) through which a catalysable fluid, in particular an exhaust gas of an internal combustion engine (3), flows along a direction of flow from an inlet side (12) to an out...
|
|
WO/1992/002807A1 |
A method of detecting the accumulation of particulate material collected on a filter medium formed of dielectric material in a chamber having the property of a microwave waveguide or transmission line comprises the steps of exciting the ...
|
|
WO/1992/000446A1 |
The description relates to a process for protecting catalysts used for cleaning exhaust gases by temperature measurement using a heat tone sensor which is specially suitable for implementing the process, in which behind the catalyst in t...
|
|
WO/1991/016529A1 |
An apparatus for controlling exhaust temperature in an internal combustion engine having an exhaust system (19, 22) comprising at least one catalytic converter (23). The apparatus comprises at least one temperature sensing means (26) for...
|
|
WO/1991/014856A1 |
In a process for controlling an internal combustion engine (1) with an engine control system (2) which obtains and processes a plurality of measurement values through measurement lines (3), converts them to control data for the operation...
|
|
WO/1991/014855A1 |
In a process for monitoring the performance of a catalyst (8) for exhaust gases of an internal combustion engine (1) with an exhaust gas system (5, 8, 9), the temperature of two spatially separate cross-sectional regions in the exhaust g...
|
|
WO/1991/013247A1 |
A method of operating an internal combustion engine (20) in order to improve the control of the level of emissions in the exhaust gases, comprising the steps of, at least when the engine (20) is operating under idle and/or low load condi...
|
|
WO/1991/012417A1 |
A control system for regenerating a particulate trap in the exhaust system of a diesel engine includes control logic which controls the air/fuel ratio of the engine by operating a backpressure valve in the engine exhaust system to provid...
|
|
WO/1991/004394A1 |
In a process for cleaning a soot filter (4) in the exhaust pipe (2) of a diesel engine (3), the flow of exhaust gas (5) is directed through a burner (1). When the load on the soot filter (4) reaches a certain level, the burner (1) is ign...
|
|
WO/1989/001566A2 |
A particulate filter module, comprising: a ceramic filter element (104) having opposite ends and a longitudinal side region therebetween; a rigid housing (108) for enclosing said side region of said filter element, said housing including...
|
|
WO/1989/000238A1 |
This invention relates to an apparatus for burning particulates in a diesel engine exhaust gas, having a trap (2) inserted into an exhaust passage of the diesel engine and provided with an electric heater (8) therein, a bypass passage (3...
|
|
WO/1988/007622A1 |
In a process for monitoring the performance of catalysers, a heat energy is determined at a first point in the region of the catalyser (1) and the heat energy at at least a second point in the region of the catalyser (1) is also determin...
|
|
WO/1986/004641A1 |
In a method for the automatic regeneration of a soot filter in the exhaust gas pipe of a diesel engine on a motor vehicle, a butterfly valve arranged in the intake manifold is controlled by the following logic system: 1. the rotation spe...
|
|
WO/1985/002784A1 |
An apparatus for regenerating a filter trap (A) used to collect particulates from the exhaust gas of an internal combustion engine. The apparatus comprises: (a) apparatus (C-2) providing a flow of a heat transfer medium through the filte...
|
|
WO/1985/002883A1 |
A method and apparatus for initiating the energization of a regenerative apparatus used with a particulate filter trap having a porosity effective to extract particulates from the exhaust gas flow of an internal combustion engine. The me...
|
|
WO/1985/002785A1 |
A system for extracting particulates from the exhaust gases flowing from a diesel engine (A) of an automobile by the use of a filter trap (C-1) stationed adjacent a heat controlled zone (43) of the automobile and which system periodicall...
|
|
WO/1985/002882A1 |
An apparatus which is operative to remove oxidizable particulates from the exhaust gas of an engine. It has a particulate filter trap (C-1) disposed in a stream of exhaust gases from the engine (A), and has electrically heated elements (...
|
|
WO/1983/000057A1 |
Method and apparatus for efficiently reducing the amounts of nitrogen oxides contained in a combusted gas stream from an engine combustion chamber (14). Ammonia is reliably and instantaneously metered to the combusted gas stream conduit ...
|
|
JP7422895B2 |
A method for controlling a reductant generation device 100, the reductant generation device 100 including: a sprayer 10 capable of spraying a reductant precursor 50; and a heater 20 comprising a ceramic substrate 21, the heater 20 being ...
|
|
JP2023178883A |
To suppress condensate water from coming into contact with a sensor, while promoting an exhaust gas to go toward the sensor.An exhaust device is mounted on a vehicle, and includes a shell and a partition plate. The shell forms a flow pas...
|
|
JP7389726B2 |
To suppress overheating of a filter in regeneration processing.A regeneration control device 250 includes: an inlet temperature acquisition section 264 acquiring an inlet temperature that is a temperature of exhaust gas at an inlet of a ...
|
|
JP2023540743A |
The present disclosure provides a platinum-containing three-way conversion (TWC) catalyst and a system for treating an exhaust gas stream from a gasoline engine using the TWC catalyst. The system is configured to introduce a controlled a...
|
|
JP2023540136A |
The present disclosure provides a system for treating an exhaust gas stream from a gasoline engine. The system is configured to introduce a controlled amount of hydrogen gas into the exhaust gas stream upstream of the catalyst article du...
|
|
JP2023537527A |
The present invention relates to stabilization of aqueous urea solutions containing organometallic catalyst precursors. Stabilization can be achieved by monitoring and controlling solution pH.
|
|
JP7196828B2 |
To provide a control device for a vehicle mounted with a CO2 recovery device, which can increase an amount of space capable of storing carbon dioxide in the CO2 recovery device while continuing travelling and does not increase the concen...
|
|
JP7172956B2 |
A control device for a vehicle is provided with a catalyst warmup control part supplying electric power to a conductive base to warm up a catalyst device if the temperature of the conductive base is less than a predetermined temperature ...
|
|
JP2022545944A |
Method for operating a control unit for an exhaust gas probe, in particular for a broadband lambda sensor of an internal combustion engine of a motor vehicle, or for other sensor devices, the control unit for controlling the electric dri...
|
|
JP2022150807A |
To suppress the occurrence of an abnormality at a NOx sensor 4 installed in an exhaust passage 3 of an engine 2.A heater control device 1 has: a stop time acquisition part 121 for acquiring a stop time after a stop of an engine 2 up to a...
|
|
JP7115321B2 |
To detect detachment of an exhaust pipe from an exhaust gas aftertreatment device.A control device 200 for an internal combustion engine 100 includes: a first determination section determining whether a detachment state is established on...
|
|
JP7056588B2 |
To detect detachment of an exhaust gas aftertreatment device from an exhaust pipe.A control device 200 for an internal combustion engine 100 includes: a first determination section determining whether a detachment state is established on...
|
|
JP2022054610A |
To provide a reducer supply device suppressed in corrosion by a reducer.A reducer supply device 7 in which a reducer for reduction treatment of an exhaust gas discharged from an internal combustion engine 1 to an exhaust pipe 2 is guided...
|
|
JP2022055022A |
To provide an exhaust emission control device and an internal combustion engine system, which can promptly increase the supply amount of a reducing agent.An exhaust emission control device 1 includes an SCR catalyst 12 arranged in an exh...
|
