|
Match
|
Document |
Document Title |
|
|
7007458 |
Vehicle having an emission control device diagnostic computer
A computer controlled diagnostic system is described that monitors catalyst activity of an upstream catalyst using a sensor located downstream of a downstream catalyst. In this way, a system...
|
|
|
7003943 |
Method and device for lambda control and for catalytic converter diagnosis in an internal combustion engine
In the present invention lambda control is carried out by using a NO x sensor which is arranged in the catalytic converter or downstream of this. At the same time on the basis of the measured NO x...
|
|
|
7000384 |
Exhaust emission control device of engine
An exhaust emission control device comprises a temperature sensor for detecting the temperature of exhaust gas directly on the upper-stream side of a diesel particulate filter. An ECU adjusts a...
|
|
|
7000385 |
Exhaust gas purification apparatus and method for internal combustion engine
An exhaust passageway of an engine is provided with a NOx storage-reduction catalyst for trapping and storing NOx from an exhaust gas lean of a stoichiometric air-fuel ratio. When the storage of...
|
|
|
7000379 |
Fuel/air ratio feedback control with catalyst gain estimation for an internal combustion engine
A system and method for controlling an internal combustion engine for low emissions include an inner feedback control loop to control the engine fuel/air ratio with feedback provided by a first...
|
|
|
7000382 |
Partial oxidation of alcohols
A method of partially oxidizing an alcohol to an aldehyde or ketone comprises contacting a gas containing the alcohol with a solid catalyst containing molybdenum, preferably in a +6 oxidation...
|
|
|
6996974 |
Fuel control failure detection based on post O2 sensor
An engine diagnostic system includes a catalytic converter and an outlet O 2 sensor. The outlet O 2 sensor generates an outlet signal that is based on an oxygen level of exhaust gases exiting the...
|
|
|
6993901 |
Excess air factor control of diesel engine
A diesel engine ( 1 ) provided with a NOx catalyst ( 28 A) and a diesel particulate filter ( 28 B) performs lean burn operation during normal running, rich burn operation during regeneration of the...
|
|
|
6990802 |
Apparatus and method for regenerating particulate filter that removes particulates out of exhaust gas for internal combustion engine
A particulate deposit amount Spm on a particulate filter disposed in an exhaust passage is estimated during a usual period different from a regeneration period of the particulate filter and during...
|
|
|
6990803 |
Exhaust gas processing device and method for diesel engine
A controller ( 31 ) determines whether, during previous regeneration processing of a filter ( 41 ), the previous regeneration processing was interrupted or the previous regeneration processing was...
|
|
|
6988361 |
Method and system for controlling simultaneous diesel particulate filter regeneration and lean NOx trap desulfation
A method and system for simultaneously regenerating a particulate filter coupled to an internal combustion engine and for desulfating a lean NOx trap disposed downstream of the particulate filter....
|
|
|
6988359 |
Exhaust gas control apparatus and exhaust gas purification method for internal combustion engine
An exhaust gas control apparatus and an exhaust gas purification method are for an internal combustion engine provided with a first catalyst portion disposed in an exhaust passage of the internal...
|
|
|
6989045 |
Apparatus and method for filtering particulate and reducing NOx emissions
An apparatus and method for filtering particulate from an internal combustion engine by use of monolithic particulate trap systems having porous walls ( 2 c, 24 c ). The porous walls ( 2 c, 24 c...
|
|
|
6986248 |
Method and device for dosing a liquid reducing agent
A method and a device for dosing a liquid reducing agent for denoxing the exhaust gases of a diesel engine, wherein the reducing agent is delivered to the exhaust gas system of the diesel engine...
|
|
|
6983589 |
Diesel aftertreatment systems
A method for accurately diagnosing deterioration in an emission control system for a lean burn internal combustion engine is presented. The emission control system includes an Active Lean NOx...
|
|
|
6983590 |
Secondary air injection diagnostic system using pressure feedback
A diagnostic system according to the present invention diagnoses system failure of a secondary air injection system. The secondary air injection system includes a pump that provides air to an...
|
|
|
6983591 |
Particulate filter regenerating device
A particulate filter regenerating device is configured to prevent the uneven distribution of particulate matter that results from interruption of the regeneration process and protect the...
|
|
|
6981367 |
Hydrogen and oxygen generation from a water vapor containing exhaust
In accordance with one embodiment of the present invention, a device for generating hydrogen from a water vapor containing exhaust is provided. The device comprises an exhaust diverter and a...
|
|
|
6981369 |
Exhaust gas cleaning apparatus
An exhaust gas cleaning apparatus for an engine has a NOx trapping catalytic converter and a control unit for controlling an intake air throttle valve and a fuel injection timing in accordance with...
|
|
|
6981370 |
Method and apparatus for PM filter regeneration
A method and apparatus for initiating regeneration of a particulate matter (PM) filter in an exhaust system in an internal combustion engine. The method and apparatus includes determining a change...
|
|
|
6978600 |
Secondary air supply system and secondary air supply method
A secondary air supply system includes an exhaust gas control catalyst which is provided in an exhaust system in an internal combustion engine, and which purifies a harmful component in exhaust...
|
|
|
6978604 |
Soot burn-off control strategy for a catalyzed diesel particulate filter
A control system (FIG. 4 ) for controlling regeneration of a DPF comprises a favorable-condition-based control section ( 52 ), a regular control section ( 54 ), and a regeneration termination...
|
|
|
6978601 |
Regenerating sulphur poisoned diesel catalysts
A diesel (compression ignition) engine having combustion management means and an exhaust gas aftertreatment system without an NO x trap, which system includes a platinum group metal (PGM) catalyst...
|
|
|
6978603 |
Exhaust gas control device-equipped internal combustion engine and exhaust gas control method
In an exhaust gas control device-equipped internal combustion engine, particulate matter produced in conjunction with combustion of gasoline in a combustion chamber is oxidized by an exhaust gas...
|
|
|
6976354 |
Reducing oxides of nitrogen using reformate generated from engine fuel, water and/or air
Inlet air ( 15 ) humidified in an air bubbling (or other) humidifier ( 35 ) that receives water from a tank ( 36 ) is sent to a hydrogen generator ( 27 ) along with vaporized ( 23 ) diesel fuel (...
|
|
|
6973776 |
Exhaust gas aftertreatment systems
A system for effective NOx control in a diesel or other lean burn internal combustion engine is presented. The system includes a urea-based SCR catalyst having an oxidation catalyst coupled...
|
|
|
6973778 |
Regeneration control of diesel particulate filter
To regenerate a diesel particulate filter ( 10 ) which traps particulate matter contained in the exhaust gas of a diesel engine ( 20 ), a controller ( 16 ) raises the temperature of the exhaust gas...
|
|
|
6973775 |
Method for desulfating a nitrogen oxide storage catalyst
The invention relates to a method for desulfating a nitrogen oxide storage catalyst that contains stored nitrogen oxides and sulfur oxides and that forms part of an exhaust gas purification system...
|
|
|
6973777 |
System and method for monitoring the feeding of secondary air into the exhaust as of an internal combustion engine
The internal combustion engine has at least two partly separate exhaust systems in each of which are disposed a catalytic converter, and upstream thereof, a lambda probe. There is provided a...
|
|
|
6968679 |
Method for operating an internal combustion engine
A method for operating an internal combustion engine includes the step of measuring emission values of at least two pollutant components of an exhaust gas of an internal combustion engine. A value...
|
|
|
6968682 |
Method and device for controlling an internal combustion engine with an exhaust treatment system
In a method and device for controlling an internal combustion engine having an exhaust treatment system, a quantity characterizing the status of the exhaust treatment system is determined on the...
|
|
|
6968680 |
Diesel engine system for use with emission control device
An exhaust valve downstream of a diesel engine splits exhaust gasses between two catalysts. In one position, most of the exhaust gasses go to a first catalyst, and the remaining exhaust gasses,...
|
|
|
6968681 |
Method and device for aftertreatment of exhaust gases from combustion engines
The invention relates to a device and a method for the aftertreatment of exhaust gases from combustion engines, in particular from internal combustion engines. The device according to the invention...
|
|
|
6968678 |
High efficiency, reduced emissions internal combustion engine system, especially suitable for gaseous fuels
Internal combustion (“IC”) engine system for high fuel conversion efficiency and low exhaust emissions, particularly although not exclusively with gaseous fuels. An IC engine operates at...
|
|
|
6966179 |
Exhaust gas purifying system
To provide an exhaust gas purifying system capable of forcibly regenerating DPF by efficiently raising the temperature of exhaust gas even when an exhaust gas temperature is very low at the time of...
|
|
|
6964159 |
System and method for adjusting air/fuel ratio
The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter. The claimed invention comprises adjusting an air/fuel ratio in the cylinders of...
|
|
|
6964156 |
Intermittent application of syngas to NOx trap and/or diesel engine
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...
|
|
|
6964157 |
Exhaust emission control system and method for removal and storage of vehicle exhaust gas nitrogen oxides during cold operation
A system and a method for removing NO x from an internal combustion engine exhaust stream at lower temperatures, and releasing the NO x back into the exhaust stream at higher temperatures,...
|
|
|
6964158 |
Method and apparatus for particle-free exhaust gas recirculation for internal combustion engines
An exhaust gas recirculation system for reducing NO x emissions from engines, comprising an exhaust recovery means for passing an exhaust gas stream in molecular contact with a clean air engine...
|
|
|
6962046 |
Exhaust gas cleaning system having particulate filter
An electronic control unit (ECU) of an exhaust gas cleaning system for an internal combustion engine having a diesel particulate filter (DPF) determines whether collection quantity of exhaust...
|
|
|
6959543 |
Exhaust gas manifold of an exhaust system for an internal combustion engine
An exhaust gas manifold of an exhaust system for an internal combustion engine includes a diverging pipe elbow and exhaust pipes. Each exhaust pipe has an end and is connected to the diverging pipe...
|
|
|
6959541 |
Fuel injection control system for internal combustion engine
An internal combustion engine has a particulate filter for collecting exhaust particulate matters included in exhaust gas. An oxidization catalyst is supported on the particulate filter. A fuel...
|
|
|
6959538 |
Ultra low power plasma reactor system for automotive NOx emission control
A sidestream located hyper-plasma reactor having an axially discrete pattern of alternating regions of active and passive electric field along the axial direction. The hyper-plasma reactor has...
|
|
|
6959542 |
Apparatus and method for operating a fuel reformer to regenerate a DPNR device
An emission abatement assembly includes one or more DPNR devices for removing both NO X and particulate soot from the exhaust gas of an internal combustion engine. Reformate gas from a fuel...
|
|
|
6957528 |
No reduction with diesel fuel reformed by nonthermal hyperplasma
The reduction of NO x in diesel engine exhaust gas, typically at about 200° C. to 400° C., is accomplished using a dual bed NaY—CuY zeolite reduction catalyst. The effectiveness of the...
|
|
|
6957527 |
Device and method for estimating catalytic temperature
A device for periodically estimating the temperature of an exhaust-gas purifying catalyst provided in the exhaust pipe of an internal combustion engine. The device includes first, second, third,...
|
|
|
6952919 |
Exhaust gas purifying system for internal combustion engine
An exhaust gas purifying system for an automotive internal combustion engine. The exhaust gas purifying system includes a particulate filter disposed in an exhaust gas passageway of the engine to...
|
|
|
6952918 |
Regenerative control method for continuous regenerative diesel particulate filter device
A regeneration control method for regenerating a continuously regenerating diesel particulate filter device capable of regenerating a filter by efficiently removing PM while suppressing the...
|
|
|
6951100 |
Exhaust gas cleaning system of internal combustion engine
An electronic control unit (an ECU) detects an operating condition of an engine and quantity of particulate matters accumulated in a diesel particulate filter (a DPF) having an oxidation catalyst...
|
|
|
6951098 |
Method and system for controlling temperature of an internal combustion engine exhaust gas aftertreatment device
A method for controlling torque in an internal combustion engine to cause an increase in temperature in an exhaust aftertreatment device is disclosed. One group cylinders feed exhaust gases to one...
|