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7621120 |
Hybrid technology for lean NOx trap and particulate filter regeneration control
A method for the use of hybrid technology to control lean NOx trap (LNT) and particulate filter regenerations using an electric motor wherein for the LNT (a) the electric motor is adapted to absorb...
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7617674 |
Method for operating an exhaust-gas treatment device of an internal combustion engine, and device for carrying out the method
A method for operating an exhaust-gas treatment device of an internal combustion engine and a device for carrying out the method, in which a reagent, whose pressure is measured by a reagent...
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7617673 |
Controller for internal combustion engine
A start-up assisting degree by a motor is set at an appropriate level on the basis of a catalyst condition represented by a catalyst temperature, an oxygen storage (degree) in the catalyst, a...
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7617672 |
Engine exhaust emission control device and exhaust emission control method
An engine C/U 51 detects an abnormality which has occurred in an engine, and outputs a signal that indicates the occurrence of this abnormality to an SCR-C/U 61 . The SCR-C/U 61 increases and...
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7617671 |
Method and apparatus for purifying motor exhaust fumes
A motor exhaust ozonator adapter is connected with the end of a motor vehicle exhaust pipe for receiving and passing exhaust gas. One arm of the adapter is connected with the end of the exhaust...
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7614222 |
System and method for directing fluid flow
In one embodiment, a flow switch can comprise: a deflector having a diverging upstream portion; an aperture located in a downstream portion of the deflector; and a divider disposed downstream of...
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7614220 |
Procedure for controlling the reducing agent in an exhaust gas post-processing system
The invention relates to a procedure for controlling the reducing agent in an exhaust gas post-processing system of a combustion machine with an exhaust gas duct, in which an SCR catalytic...
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7614217 |
Method and device for activating regeneration of a nitric oxide adsorber
A method of activating regeneration of a nitric oxide adsorber ( 8 ) for treating exhaust gas produced by an internal combustion engine ( 1 ) of a vehicle, the method including the steps of...
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7614216 |
Exhaust cleaning-up device for internal combustion engine for vehicle
In an exhaust system, there are provided an HC absorbent which absorbs HC contained in exhaust when in a specified low-temperature range and desorbs the absorbed HC when it exceeds said...
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7614215 |
Exhaust treatment packaging apparatus, system, and method
An exhaust treatment packaging apparatus, system, and method includes an elongate exhaust gas passage comprising an inlet for the entrance of flowing exhaust gases and an outlet for the exit of the...
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7614214 |
Gasification of soot trapped in a particulate filter under reducing conditions
A power generation system comprises a diesel engine, a diesel particulate filter and a LNT configured to receive the exhaust from the DPF. The DPF is provided with a catalyst coating that is...
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7614213 |
Engine exhaust emission purification apparatus
An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a...
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7610752 |
Devices and methods for reduction of NOx emissions from lean burn engines
The invention provides devices and methods for generating H 2 and CO in an O 2 containing gas stream. The invention also provides devices and methods for removal of NO X from an O 2 containing...
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7610751 |
Fuel injection before turbocharger
One concept relates to power generation system, comprising a diesel engine, an exhaust manifold, a turbocharger, and an exhaust line in which are configured a fuel reformer and a LNT. A fuel...
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7610750 |
Method and apparatus for monitoring a urea injection system in an exhaust aftertreatment system
A monitoring system for an exhaust aftertreatment system is provided, comprising an injecting device operable to inject reductant into an exhaust gas feedstream upstream of a selective catalyst...
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7607292 |
Fuel addition apparatus
In a transient state, where the temperature at the distal end of a fuel adding valve enters a high temperature region, an addition amount for preventing clogging is not simply added in accordance...
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7607291 |
Engine system arrangement with on-board ammonia production and exhaust after treatment system
An engine system includes first and second combustion chamber groups that supply exhaust to respective first and second exhaust passages. NOx in the exhaust of the first combustion group is...
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7607290 |
Exhaust purifying apparatus for internal combustion engine
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...
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7603851 |
System for assisting in the regeneration of motor vehicle depollution means
This system in which the engine implements regeneration strategies at a first level and at a second level depending on different engine operation control parameters in order to obtain different...
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7603850 |
System for assisting in the regeneration of depollution means integrated into an exhaust line of a motor vehicle diesel engine
A system in which the depollution means ( 1 ) are associated with oxidation catalyst-forming means ( 2 ), and the engine ( 4 ) is associated with common manifold means ( 7 ) for feeding it with...
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7603849 |
Exhaust system
The present invention relates to an exhaust system for an internal combustion engine, in particular in a motor vehicle, having an exhaust line carrying exhaust gas away from the internal combustion...
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7603846 |
Method for operating an internal combustion engine and a device for carrying out the method
A method for operating an internal combustion engine whose exhaust area has at least one SCR catalytic converter and a device for carrying out the method are described. The SCR catalytic converter...
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7600374 |
Regeneration control of exhaust gas filter
A controller ( 70 ) controls regeneration of an exhaust gas filter ( 52 ) which traps particulate matter contained in exhaust gas to prevent the particulate matter from being discharged into the...
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7600373 |
Regeneration controller for exhaust purification apparatus of internal combustion engine
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...
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7600372 |
Exhaust gas control apparatus for internal combustion engine
A bypass passage is provided, which connects a portion upstream of a turbine of a supercharger in an exhaust passage to a portion close to a front end surface of exhaust gas purification in the...
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7596942 |
System for assisting regeneration of pollution management means for motor vehicle engine
The invention concerns a system for assisting regeneration of pollution management means ( 1 ) integrated in an exhaust line ( 3 ) of a diesel engine ( 4 ), wherein the engine ( 4 ) is associated...
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7594393 |
Apparatus for introducing a reducing agent into the exhaust of an internal combustion engine
An apparatus for introducing a reducing agent into the exhaust of an internal combustion engine, having a reservoir, a delivery unit, and a flow path for the reducing agent. The apparatus also has...
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7591132 |
Apparatus and method to inject a reductant into an exhaust gas feedstream
An exhaust aftertreatment system for an internal combustion engine is provided including an apparatus and method to inject a reductant into the exhaust gas feedstream. Included is a fuel metering...
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7587891 |
Method for regenerating NOx absorbing catalyst
A method for regenerating a NOx absorbing catalyst includes: detecting a NOx value by a NOx sensor and determining whether to perform a regeneration mode or not based on a comparison of the sensed...
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7587890 |
Reductant injection rate shaping method for regeneration of aftertreatment systems
The invention provides methods for regenerating pollutant storage and catalytic components of an internal combustion engine's exhaust gas aftertreatment system. These methods include introducing...
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7587889 |
System for determining NOx conversion efficiency of an exhaust gas aftertreatment component
A system for determining a NOx conversion efficiency of an exhaust gas aftertreatment component comprises means for determining an operating temperature of the exhaust gas aftertreatment component,...
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7584604 |
Exhaust gas purification apparatus of engine
For preventing clogging in an injection nozzle for supplying a reducing agent to exhaust gas flow on an upstream side of a reducing catalyst and for improving the efficiency of NOx purification...
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7584603 |
Method and system for regenerating NOx adsorbers and/or particulate filters
An active system for regenerating a NOx adsorber and a particulate filter, the system includes a fuel source, a reformer for generating hydrogen and carbon monoxide in fluid communication with the...
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7581394 |
Variable nozzle device for a turbocharger
A nozzle device for a turbine of a turbocharger according to the present invention comprises variable annular nozzle ( 2 ) defined between an inboard wall ( 3 ) and an outboard wall ( 4 ), wherein...
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7581389 |
Method and apparatus for monitoring ash accumulation in a particulate filter of an emission abatement assembly
A method of monitoring ash buildup in a particulate filter includes determining particulate accumulation in the filters subsequent to filter regeneration to determine when the filter is in need of...
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7581387 |
Exhaust gas mixing system
A system for mixing exhaust gas components is provided. The system may include an exhaust passage and a substantially enclosed distribution chamber disposed within the exhaust passage. The...
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7581386 |
Motor vehicle provided with a diesel propulsion engine
A motor vehicle includes a diesel propulsion engine and an exhaust system that comprises a discontinuously regenerating exhaust gas purification system. A fuel evaporator unit serves to enrich...
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7578321 |
Freeze protection for on-board vehicle emissions treatment system
Freeze protection of an on-board emissions treatment substance storage and distribution system in a vehicle includes moving the emissions treatment substance away from a primary fuel/vapor area...
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7578123 |
Exhaust cleaning device of diesel engine
An integrating PM amount σ PM as an integrating value of a PM generating amount after DPF regeneration is read (S 1 ). The integrating PM amount and a first threshold value SL 1 set in advance...
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7575612 |
Methods and systems for gasification system waste gas decomposition
Methods and systems for decomposing ammonia in a gasifier are provided. The system includes a gasifier including a pressure vessel and an injection nozzle extending through the pressure vessel and...
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7574857 |
Exhaust emission control system for internal combustion engine
In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter...
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7571603 |
Metering system for reducing pollutants in motor vehicle exhaust gases
The invention relates to a metering system for injecting pollutant reducing medium into an exhaust system includes a metering pump, and at least one self-opening nozzle for injecting fluidic media...
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7571602 |
Exhaust aftertreatment system and method of use for lean burn internal combustion engines
The present invention is an aftertreatment system for lean burn internal combustion engines. The present invention provides a multiple branch lean NOx trap, or LNT, with a diverter valve operable...
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7571601 |
Method and apparatus for controlling regeneration of simultaneous NOx-PM reduction device
The present invention provides a method for controlling regeneration of the simultaneous NOx-PM reduction apparatus having a lean NOx trap (LNT) for removing nitrogen oxide (NOx) an engine and a...
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7571600 |
Method and apparatus for reducing pollutants in engine exhaust
A transmural catalysis device allows for conversion of NOx into N 2 in internal combustion engine exhaust. A reducing gas is delivered into exhaust tubes through a plurality of pores or channels...
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7571599 |
Exhaust gas purification apparatus of engine
A liquid reducing agent of a necessary amount according to an engine operating condition is injection-supplied from a nozzle having an injection hole opening to inside an exhaust gas passage,...
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7562524 |
Apparatus, system, and method for estimating particulate consumption
An apparatus, system, and method are disclosed for robustly estimating soot oxidation rates on a particulate filter. The invention uses empirically measured soot consumption rates as defined...
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7562523 |
Apparatus, system, and method for determining a regeneration cycle thermal ramp
An apparatus, system, and method are disclosed for determining a regeneration cycle thermal ramp. A thermal ramp module estimates a regeneration cycle thermal ramp. A soot content module estimates...
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7562522 |
Enhanced hybrid de-NOx system
An exhaust aftertreatment system including a lean NOx trap, an ammonia-SCR catalyst, and an additional catalyst configured in between. The lean NOx trap adsorbs NOx from lean exhaust and produces...
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7559195 |
Procedure and device to heat a reducing agent generation system
The invention concerns a procedure to heat a reducing agent generation system of an exhaust gas aftertreatment system of an internal combustion engine by combustion of fuel, whereby the reducing...
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