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| Number | Title | Issue Date |
| 7415818 | Control device of internal combustion engine A control device of an internal combustion engine is capable of controlling an air-fuel ratio to be lean based on an activity of oxygen occlusion properties to provide improved three-way catalytic performance. The control device comprises: a three-way catalyst dispo... | 08/26/2008 |
| 7415819 | Method and system to automatically drain and dispose of accumulated water from water/fuel separators in diesel A method and system are provided for removing water/fuel mixture from a water/fuel separator. The method injects the water/fuel mixture is injected into an exhaust aftertreatment device where the fuel portion of such mixture is burned and converted into water and ca... | 08/26/2008 |
| 7412965 | Exhaust control system for an internal combustion engine An exhaust control system for an internal combustion engine having a plurality of actuators wherein each actuator controls a predetermined engine parameter. A plurality of sensors are also associated with the engine and each sensor provides an output representative ... | 08/19/2008 |
| 7412822 | Regeneration control for diesel particulate filter for treating diesel engine exhaust A method and system for controlling exhaust gas temperature at a diesel particulate filter during regeneration. The temperature rise is controlled at a rate that will prevent harm to the filter caused by high temperatures and rapid increases. ... | 08/19/2008 |
| 7413720 | Catalyst and method for reduction of nitrogen oxides A Selective Catalytic Reduction (SCR) catalyst was prepared by slurry coating ZSM-5 zeolite onto a cordierite monolith, then subliming an iron salt onto the zeolite, calcining the monolith, and then dipping the monolith either into an aqueous solution of manganese n... | 08/19/2008 |
| 7412820 | Air-fuel ratio control system for internal combustion engine An air-fuel ratio control system for an internal combustion engine having a catalyst provided in an exhaust system of the engine for purifying exhaust gases and a first oxygen concentration sensor disposed upstream of the catalyst is disclosed. The air-fuel ratio co... | 08/19/2008 |
| 7409821 | Catalytic converter degradation determining system A catalytic converter degradation determining system is configured to accurately determine if a NOx trapping catalytic converter is degraded. The system is configured to detect or estimate the temperature of a NOx trapping catalytic converter and sets a pre-degradat... | 08/12/2008 |
| 7409247 | Method and system for estimating a quantity of particles emitted in the exhaust gas of a diesel engine for a motor vehicle 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 the engine operation and is ... | 08/05/2008 |
| 7404291 | Exhaust gas purifying apparatus for internal combustion engine An exhaust gas purifying apparatus for an internal combustion engine, including a filter provided in an exhaust system of the engine for trapping particulates in exhaust gases, and a pressure difference sensor for detecting a pressure difference between an upstream ... | 07/29/2008 |
| 7402292 | Device and methods of ammonia generation for NOx abatement One embodiment of a method of operating a NOx abatement system comprises: introducing an exhaust stream to an ammonia generator in a normal flow direction, adsorbing NOx from the exhaust stream in the ammonia generator, diverting the exhaust stream around the ammoni... | 07/22/2008 |
| 7401462 | Control strategy for lean NOx trap regeneration A method for controlling regeneration of a lean NOx trap includes estimating an accumulated NOx in the lean NOx trap; determining whether the estimated NOx exceeds a first threshold value or a second threshold value; estimating the temperature of the lean NOx trap; ... | 07/22/2008 |
| 7399455 | Exhaust filter system for non-road engine An exhaust filter system, adapted for removing substances entrained in an exhaust gas from a nonroad engine, includes a casing having a filter cavity for communicating with an exhaust outlet of the generator and a filter core which includes a plurality of filtering ... | 07/15/2008 |
| 7398644 | System and method for reducing NOx emissions in an apparatus having a diesel engine In a mechanical apparatus having a diesel engine including a combustion chamber, the mechanical apparatus also having an aftertreatment device configured to treat emissions from the diesel engine and an intake valve for passing air into the combustion chamber, a met... | 07/15/2008 |
| 7398643 | Combined EGR cooler and plasma reactor A combined EGR cooler and non-thermal plasma device has first and second fluid passageways which are in heat exchange communication with one another. One or more electrodes are located in the second fluid passageway. The electrodes are connected to a voltage source.... | 07/15/2008 |
| 7393509 | Honeycomb structure The present invention provides a honeycomb structure 1 comprising partition walls 2 so as to form a plurality of cells 3 extending from one end face 42 to the other end face 44, and a plug portion 4 plugging the cell 3 | 07/01/2008 |
| 7389639 | Water recovery and purification A system for recovering and purifying water from a gas stream may include, a gas stream purification unit for purifying the gas stream, a water separation unit for separating water from the purified gas stream, and a water purification unit for purifying the water s... | 06/24/2008 |
| 7390469 | Bimodal catalyst-urea SCR system for enhanced NOconversion and durability The present invention discloses a method for reducing NOx in exhaust gases of an internal combustion engine. The purpose of this invention is to convert engine out NOx (approximately 90% NO in diesel exhaust) into roughly a 50:50 mixture of NO ... | 06/24/2008 |
| 7390338 | Method and apparatus for regenerating engine exhaust filters Internal combustion engine exhaust filter devices and the like are regenerated by placement in a reclamation or burn-off furnace, raising the temperature to at least about 800° F. to 900° F. and conducting relatively low volumes of low pressure air through the fil... | 06/24/2008 |
| 7380396 | Method for protecting an exhaust aftertreatment system The method of the present invention is adapted to protect an exhaust aftertreatment system by preventing the system from becoming clogged and/or damaged during periods of light engine load. According to a preferred embodiment, the present invention protects the exha... | 06/03/2008 |
| 7377102 | Device and method for heating exhaust gas A device and method for heating exhaust gas from the combustion of fossil fuel upstream of an emissions control device, especially a diesel particulate filter. A conduit receives an exhaust gas flow, and is in fluid communication with the emissions control device fo... | 05/27/2008 |
| 7377101 | Plasma fuel converter NOx adsorber system for exhaust aftertreatment The invention provides a NOx adsorber aftertreatment system for internal combustion engines which utilizes a plasma fuel converter operatively coupled to at least one NOx adsorber to aid in the regeneration of the NOx adsorber. Fuel and engine exhaust is injected in... | 05/27/2008 |
| 7374600 | System and method for excluding false back pressure faults after installation of a particulate trap filter A method and system for preventing or minimizing false back pressure faults caused by a new particulate filter in an engine exhaust system. When a new particulate filter is placed in an engine exhaust system, the normal back pressure threshold for the fault detectio... | 05/20/2008 |
| 7370471 | Internal combustion engine controller An internal combustion engine controller for automobiles which realizes torque increasing performance and exhaust gas purifying performance in a well-balanced manner even when a high-response torque increase is demanded in uniform charge stoichiometric combustion wh... | 05/13/2008 |
| 7370470 | Method for increasing the exhaust gas temperature of internal combustion engines A method for increasing the exhaust gas temperature of internal combustion engines, particularly for driving a motor vehicle under load in order to reach the necessary regeneration temperature of at least one component of an exhaust gas post-treatment system, has th... | 05/13/2008 |
| 7370474 | Exhaust gas purifying equipment for a diesel engine An exhaust gas purifying equipment for a diesel engine having a first continuous regeneration type DPF (12) in an exhaust passage (7) of an engine (2), a second continuous regeneration type DPF (13) in a bypass passage (101), a swi... | 05/13/2008 |
| 7371353 | Exhaust purification with on-board ammonia production A system of ammonia production for a selective catalytic reduction system is provided. The system includes producing an exhaust gas stream within a cylinder group, wherein the first exhaust gas stream includes NOx. The exhaust gas stream may be supplied to an exhaus... | 05/13/2008 |
| 7369932 | System and method for turbine engine fault detection using discrete event system modeling A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis. The fault detection system and method receives sensor taken at multi... | 05/06/2008 |
| 7367179 | Method and device for operating an internal combustion engine having a catalytic converter A method and a device for operating an internal combustion engine having a catalytic converter are described making it possible to heat the catalytic converter more quickly. An additional load of the internal combustion engine is applied to heat the catalytic conver... | 05/06/2008 |
| 7368094 | Plasma-assisted NOreduction Ozone, preferably produced in an ambient air stream passed through a non-thermal hyperplasma reactor, is added to the hot exhaust gas stream from a lean-burn (oxygen-rich) combustion source. The ozone converts much of the NO in the NOx containing exhaust ... | 05/06/2008 |
| 7367184 | Fuel injection control device for internal combustion engine A fuel injection amount control device is used for an internal combustion engine. A secondary air supply device supplies secondary air into an exhaust passage of the internal combustion engine. Flow amount calculating circuitry calculates a secondary air flow amount... | 05/06/2008 |
| 7367180 | System and method for controlling valve timing of an engine with cylinder deactivation Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, ... | 05/06/2008 |
| 7367182 | Exhaust emission control device for an internal combustion engine A forced regeneration device which performs regeneration of a particulate filter includes oxidation catalysts (23, 24a) disposed upstream from the particulate filter or in said particulate filter and a burner (30) located upstream from the oxida... | 05/06/2008 |
| 7363906 | Control system for internal combustion engine A control system for an internal combustion engine, which can determine just enough amounts of demanded combustion fuel and auxiliary fuel during execution of auxiliary fuel supply, for improvement of fuel economy and drivability and the emission-reducing capability... | 04/29/2008 |
| 7363758 | Lean burn engine control NOpurging based on positional loading of oxidants in emission control device Disclosed is a method for controlling a lean burn engine coupled to an emission control device that stores oxidants during lean operation, and reacts the stored oxidants during stoichiometric or rich operation, the method comprising estimating amounts of NOx stored ... | 04/29/2008 |
| 7361321 | Exhaust stream treatment A method comprises injecting a reductant stream comprising a hydrocarbon reductant and water into an exhaust chamber comprising a nitrogen oxide-containing exhaust stream; contacting a composition comprising the reductant stream and exhaust stream with a catalyst; a... | 04/22/2008 |
| 7361320 | Exhaust gas purification unit with reducing agent supply The invention proposes an exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, in which a particulate filter and a SCR cat... | 04/22/2008 |
| 7356987 | Exhaust gas recirculation system having an electrostatic precipitator An exhaust gas recirculation system for a power source, has at least one inlet port configured to receive at least a portion of a flow of exhaust produced by the power source. The exhaust gas recirculation system also has an electrode disposed upstream of the at lea... | 04/15/2008 |
| 7357822 | Filter control apparatus In order to calculate an estimation of the quantity of accumulated particulates in a filter (32), a first estimation calculation unit (100) that outputs first estimation data (XA) calculated from the filter before and after differential pressure, and a... | 04/15/2008 |
| 7357221 | Exhaust gas muffler An exhaust gas muffler is provided for an internal combustion engine, especially for an internal combustion engine in a manually-guided implement such as a power saw, a cut-off machine, or the like. The muffler has a housing having an inlet for exhaust gases and an ... | 04/15/2008 |
| 7357820 | System for converting fuel and air into reformate The invention relates to a system for converting fuel and air into reformate with a reformer which has a reaction space, a nozzle for supplying a fuel/air mixture to the reaction space, and a fuel feed for supplying fuel to the nozzle. In the invention, the air inle... | 04/15/2008 |
