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7314044 |
Marine emissions control
A marine engine has an exhaust system including a catalyst cooled by a flow of coolant, a coolant injector that injects coolant into the flow of exhaust at a point downstream of the catalyst, and a...
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7310940 |
Method of operating a system comprising a diesel engine and catalyst for exhaust gas purification
The invention relates to a method and an apparatus of operating a drive system comprising an engine and an exhaust gas purification unit containing a catalyst, where the engine emits an exhaust gas...
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7305825 |
Engine turbine temperature control system
A turbine temperature control (TTC) system for regulating operation of an engine to control a temperature of a forced air induction device. The system includes a sensor that is responsive to an...
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7305820 |
Exhaust gas control apparatus for internal combustion engine
A converter ( 70 ) which houses a NOx storage/reduction catalyst is provided in an exhaust passage ( 2 ) of an engine ( 1 ). At a front half portion (inlet side portion) ( 7 a ) of a carrier of the...
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7305818 |
Method for actuating an accumulator catalyst for nitrogen dioxide on an internal combustion engine for a vehicle, in particular a car
A first range of operation for an accumulator catalyst in a vehicle is carried out in a poor operating mode when the engine is supplied with a lean mixture and nitrogen oxide contained in the...
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7302795 |
Internal combustion engine/water source system
An internal combustion engine system for automotive vehicle wherein liquid water is produced by cooling a portion of exhaust gases at elevated pressure to induce condensation. The use of elevated...
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7299626 |
DPF regeneration monitoring method
A method for operating an internal combustion engine ( 100 ) and exhaust system therefor includes the step of initiating a regeneration event in a diesel particulate filter (DPF 109 ) ( 401 ). A...
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7299623 |
Method for controlling exhaust gas temperature and space velocity during regeneration to protect temperature sensitive diesel engine components and aftertreatment devices
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...
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7296402 |
Diesel particulate filter service method
A diesel particulate filter of a motor vehicle is cleaned of ash, typically using equipment already available in a service shop. The filter apparatus is disconnected from the exhaust system of a...
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7293406 |
Engine control for low emission vehicle starting
A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated...
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7293410 |
Internal combustion engine having an exhaust particulate filter
A control unit prevents overheating of a particulate filter in an exhaust path of an internal combustion engine during regeneration of the particulate filter if the regeneration deviates from...
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7293404 |
Control device for internal combustion engine
A device includes: downstream air-fuel ratio feedback control unit that performs feedback control of an upstream target air-fuel ratio so that a downstream air-fuel ratio detected by a downstream...
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7293409 |
Process and system for improving combustion and exhaust aftertreatment of motor vehicle engines
A diesel combustion engine system providing improved fuel combustion and exhaust aftertreatment includes: a diesel combustion engine having a liquid fuel intake, an air intake, a reformate intake,...
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7293407 |
Method for operating a diesel engine
The invention relates to a method for operating a diesel engine in which an air ratio (λ) of the fuel which is to be burnt and of the combustion air supplied is set by a control unit ( 14 )...
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7294313 |
Device and method for producing ammonia from solid urea pellets
A device for producing ammonia from urea pellets includes a pellet dispensing device, a pellet accelerator, a pellet shooting channel, and an ammonia reactor having a chamber or zone for shooting...
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7292930 |
Attenuation of engine harshness during lean-to-rich transitions
Engine systems and methods for accomplishing regeneration of a NOx adsorber ( 28 ) using in-cylinder post-injection in a way that creates a lean-rich transition (FIG. 3 ) for regenerating the NOx...
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7287370 |
NOx-trap
A NOx-trap composition comprises: (a) at least one first NOx storage component comprising at least one alkali metal supported on at least one first support material; and (b) a platinum oxidation...
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7284368 |
Computer device to control operation during catalyst desulfurization to preserve catalytic function
A system is described for improving engine and vehicle performance by considering the effects of exhaust conditions on catalyst particle growth. Specifically, engine operation is adjusted to reduce...
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7284366 |
System and method for operating an engine having an exhaust gas recirculation system
In an apparatus having an internal combustion engine, a compressor for compressing engine intake gases, a particulate filter for filtering particulate matter from engine exhaust, an exhaust gas...
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7281368 |
Nox discharge quantity estimation method for internal combustion engine
In an NO x discharge quantity estimation method for an internal combustion engine equipped with an EGR apparatus, the gas components (e.g., oxygen molecules and NO x ) of intake gas taken into a...
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7278259 |
Apparatus for emissions control, system, and methods
Methods, constructions, and systems for treating engine emissions. An engine includes a crankcase, an air intake, a blow-by vent, and an exhaust port; the crankcase emits blow-by gases through the...
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7278260 |
Method for controlling an internal combustion engine for regenerating exhaust gas purifying means and device therefor
A method for controlling an internal combustion engine for regenerating an exhaust gas purifying mechanism arranged on an exhaust line of the engine during a phase of regeneration of the purifying...
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7275365 |
Method for controlling temperature in a diesel particulate filter during regeneration
Uncontrolled regeneration in a Diesel particulate filter is prevented by controlling the concentration and mass flowrate of oxygen passing through the Diesel particulate filter during regeneration.
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7276212 |
Exhaust articles for internal combustion engines
Provided is a base metal undercoat containing catalyst and an exhaust article containing the catalyst. The catalyst contains a base metal undercoat with an oxygen storage component, and at least...
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7273592 |
Combination exhaust gas post treatment/muffler device in the exhaust gas section of an internal combustion engine
A combination exhaust gas post treatment/muffler device in the exhaust gas section of an internal combustion engine is provided. The exhaust gas post treatment within the muffler, which forms...
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7273514 |
Apparatus and method for filtering particulate and 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...
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7272925 |
NOx reduction in lean burn engine exhaust
The nitric oxide (NO) and nitrogen dioxide (NO 2 ) content of lean-burn engine exhaust is beneficially prepared for selective catalytic reduction (SCR) of these oxides to nitrogen by two sidestream...
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7269941 |
Fuel injection control apparatus and fuel injection control method for internal combustion engine
An internal combustion engine includes an in-cylinder injection valve and an intake passage injection valve. A control apparatus of the engine determines whether the temperature of a component...
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7263825 |
Apparatus, system, and method for detecting and labeling a filter regeneration event
An apparatus, system, and method are disclosed for detecting and evaluating a filter regeneration event. The apparatus, in one embodiment, is configured to determine whether an oxidation rate of...
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7263822 |
Catalytic conversion of fuel and converter therefor
For a process for the catalytic conversion of furl for removing oxides of nitrogen from exhaust gases of internal combustion engines, in which fuel and a part-stream of the exhaust gas or of the...
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7263823 |
System for measuring NOx content of exhaust gas
A system for measuring NOx content of an exhaust gas produced includes at least one controllable valve operable to direct exhaust gas to a NOx sensor only when measurement of the NOx content is...
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7260930 |
Radio frequency-based particulate loading monitoring system
A particulate trap regeneration system is provided, which may include a particulate trap having a filter medium configured to remove one or more types of particulate matter from an exhaust flow of...
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7257944 |
System and method for controlling catalyst storage capacity
The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of...
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7257945 |
Stripping ethanol from ethanol-blended fuels for use in NOx SCR
A method to use diesel fuel alchohol micro emulsions (E-diesel) to provide a source of reductant to lower NO x emissions using selective catalytic reduction. Ethanol is stripped from the micro...
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7257941 |
Model based diagnostics of an aftertreatment fuel dosing system
The invention relates to systems and methods of detecting faults in an exhaust line fuel injection system. An expected relationship between a temperature within the exhaust system and a commanded...
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7257942 |
Apparatus for emissions control, systems, and methods
Methods, constructions, and systems for treating engine emissions. An engine having a crankcase includes air intake, blow-by vent, and exhaust port; the crankcase emits blow-by gases through the...
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7254938 |
Power supply and transformer
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...
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7251931 |
Accumulating amount estimating device detecting differential pressure of filter
A filter is arranged in an exhaust passage of an engine. The filter supports a catalyst. An accumulating amount estimating means detects differential pressure of the filter to estimate an amount of...
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7251932 |
Exhaust system and method for controlling exhaust gas flow and temperature through regenerable exhaust gas treatment devices
A reconfigurable exhaust system provides selective positioning of exhaust gas treatment devices either near, or spaced from, the exhaust gas outlet port of a turbine of a turbocharged Diesel...
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7249589 |
Hybrid vehicle and method for controlling hybrid vehicle
In hybrid vehicle, when the shift position SP is set to the S position at which a driver is allowed to select any one of the shift positions SP 1 to SP 6 , and it is determined that warm-up of a...
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7247190 |
Engine exhaust gas cleaning apparatus
An engine exhaust gas cleaning apparatus is provided to minimize torque shock as during regeneration of an exhaust gas cleaning device. The engine exhaust gas cleaning apparatus comprises a fuel...
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7243488 |
Method and apparatus for controlling regeneration temperature in a diesel particulate trap
A diesel exhaust gas system includes a diesel particulate filter (DPF), a trap for nitrogen oxides (LNT), a hydrocarbon catalytic reformer for generating reformate, and an air supply. A method for...
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7240483 |
Pre-combustors for internal combustion engines and systems and methods therefor
Described here are systems and methods for treating fuel injected exhaust streams. In general, the systems comprise a fuel injector, a pre-combustor, and a fuel combustor. The methods described...
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7240481 |
Engine load control for reduced cold start emissions
A control system for an engine that drives an alternator includes a first module that reduces an alternator load when the engine is cranked. A second module determines a desired exhaust energy rate...
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RE39720 |
Catalytic reduction of emissions from internal combustion engines
An apparatus for treating an exhaust gas stream from cold startup through continuous operating conditions of an internal combustion engine includes an oxidizing catalyst bed disposed in an exhaust...
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7234295 |
Emission reduction apparatus
An emission reduction apparatus includes first and second exhaust paths carrying respective first and second Nox traps. One trap has a smaller capacity than the other and is operative while the...
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7231760 |
Internal combustion engine with exhaust-gas turbocharger and secondary air injection
The invention relates to an internal combustion engine which has charge-air supercharging by means of an exhaust-gas turbocharger and secondary air injection, the flow path of which is selected in...
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7225613 |
Diesel engine after treatment device for conversion of nitrogen oxide and particulate matter
An automobile exhaust filter that both traps particulates while altering the concentration of one or more gaseous species is provided. This dual functionality is combined in a single device by...
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7225610 |
Process for operating a combustion engine
A method of operating an internal-combustion engine ( 1 ) which has at least one cylinder ( 10,20,30,40,50,60 ) with a combustion chamber ( 17,27,37,47,57,67 ) assigned to it, in the cylinder (...
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7225612 |
Method and apparatus for conversion of NOx
The invention refers to a method and apparatus for converting NO x and comprises the step of controlling a temperature in a NO x -LNT by adsorbing NO x in the LNT at a temperature below a...
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