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| Number | Title | Issue Date |
| 7216478 | Exhaust treatment diagnostic using a temperature sensor A method of monitoring operation of a dosing system for treating exhaust of an engine includes monitoring a downstream temperature of an exhaust downstream of the dosing system and injecting a dosing agent. A control module determines a temperature differential thre... | 05/15/2007 |
| 7216638 | Control of exhaust gas stoichiometry with inducted secondary air flow A method for operating a marine engine uses four valves to control the flow of secondary air that is inducted into each of the cylinders of an engine. An oxygen sensor is disposed in an exhaust passage downstream from the cylinders and upstream from a catalytic conv... | 05/15/2007 |
| 7219008 | Method and device for estimating a nitrogen oxide mass stored in a catalytic trapping device of a motor vehicle The invention relates to a method of estimating a nitrogen oxide mass stored in a catalytic nitrogen oxide trapping device (1) which comprises a catalytic phase and which is traversed by the exhaust gases (2) from the internal combustion engine (3 | 05/15/2007 |
| 7213395 | Hybrid catalyst system for exhaust emissions reduction One aspect of the invention relates an exhaust treatment system having an SCR reactor following a NOx adsorber. Syn gas is used to regenerate the NOx adsorber. Another aspect relates to an LNT/SCR provided with an ammonia source separate from the LNT. A further aspe... | 05/08/2007 |
| 7213548 | Electromechanically actuated valve control for an internal combustion engine A method is presented to control engine valve selection of an internal combustion engine. Electromechanical valves are selected in a manner to reduce fuel consumption and improve engine drivability. ... | 05/08/2007 |
| 7213396 | Method and device for operating an internal combustion engine A method for operating an internal combustion engine by introducing air, in which the air is conducted into the induction region of the internal combustion engine following shutoff of the internal combustion engine. If necessary, the intake valves and the exhaust va... | 05/08/2007 |
| 7213397 | Mechanism and method of combined fuel reformer and dosing system for exhaust aftertreatment and anti-idle SOFC APU The invention relates to a power generation system with a continuously operating fuel reformer. Preferably, the fuel reformer is either off, warming up, or operating with an essentially constant fueling rate. Some of the reformed fuel is intermittently used to regen... | 05/08/2007 |
| 7213394 | Engine blowby injector and injection system and method for injecting blowby An engine blowby injection system including a blowby passage, and a blowby injector with a blowby flow outlet sized to inject the blowby flow into an exhaust gas flow generated by an internal combustion engine. The blowby injector includes a cooling mechanism for co... | 05/08/2007 |
| 7210286 | Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter Method, system, and controller for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter. The method, system, and controller being applicable in systems having an engine which emits exhaust gases having particulates which ... | 05/01/2007 |
| 7211344 | Fuel cell systems Fuel cell systems and methods of operating fuel cell systems are disclosed. In some embodiments, the systems and methods include an emission control system that reduces an amount of organic emission(s) released from the fuel cell systems. The organic emission(s) can... | 05/01/2007 |
| 7212908 | System and method for reducing compression ignition engine emissions A method of reducing nitrogen oxides (NOx) and particulate matter (PM) in compression ignition engine emissions. The method includes monitoring at least one engine sensor that generates a signal in response to at least one engine operating condition, and adjusting a... | 05/01/2007 |
| 7210284 | Method for the control of the supplied air/fuel ratio of an internal combustion engine In a method for the control of the supplied air/fuel ratio of an internal combustion engine (1) with a catalytic converter (5) which is located in the exhaust gas line (2) with an integrated oxygen reservoir (6), it is suggested that the ... | 05/01/2007 |
| 7210464 | Fuel pump control system for cylinder cut-off internal combustion engine In a fuel pump control system for an internal combustion engine whose operation is switched between cut-off-cylinder operating mode during which some of the cylinders are non-operative and full-cylinder operating mode during which all of the cylinders are operative ... | 05/01/2007 |
| 7210288 | Exhaust gas aftertreatment installation and method An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic convert... | 05/01/2007 |
| 7210287 | Accelerating catalytic conversion A method of reducing exhaust emission from a catalytic converter apparatus of a vehicle, the apparatus including at least one catalytic converter, each of the at least one catalytic converter having a catalyst brick positioned within a predefined length of the vehic... | 05/01/2007 |
| 7210285 | Internal combustion engine exhaust gas purifying system An internal combustion engine exhaust gas purifying system (10) having a continuous regenerating diesel particulate filter system (3) on the exhaust passage (2) of an internal combustion engine (1) is constituted by including collected-qu... | 05/01/2007 |
| 7207176 | Method of controlling the exhaust gas temperature for after-treatment systems on a diesel engine using a variable geometry turbine A method for controlling a variable geometry turbine of a turbocharger to increase the temperature of the exhaust gas delivered to an after-treatment system. In one form the method includes reducing a fluid flow area to the turbine below a normal size and bypassing ... | 04/24/2007 |
| 7207170 | Warm-up method and warm-up system for internal combustion engine A warm-up system is provided for an internal combustion engine equipped with a CO2 absorbing and releasing agent that absorbs CO2 at a temperature in a first temperature range and releases the CO2 at a temperature in a second tempera... | 04/24/2007 |
| 7207171 | Exhaust gas purifying method and exhaust gas purifying system To provide an exhaust gas purifying method and an exhaust gas purifying system capable of efficiently purging the sulfur accumulated in a NOx occluding reduction type catalyst, while preventing fuel consumption from deteriorating and preventing NOx, HC, and CO from ... | 04/24/2007 |
| 7207169 | System and method for purifying an exhaust gas A system for purifying an exhaust gas includes a plasma unit and a catalyst unit. The plasma unit generates energetic plasma species which react with particulate matters and nitrogen oxides contained in the exhaust gas. The catalyst unit has a catalyst which reacts ... | 04/24/2007 |
| 7208029 | Exhaust gas cleaning system An exhaust gas cleaning system is provided that comprises a particulate filter and an NOx trapping catalytic converter disposed upstream of the particulate filter. The exhaust gas cleaning system is configured to determine a combustion amount of the particulate matt... | 04/24/2007 |
| 7207172 | Method for ventilating a working machine, and such a working machine A working machine includes an engine compartment, an engine hood, an internal combustion engine arranged in the engine compartment and an exhaust system, which extends from the engine out of the engine compartment via the engine hood. The exhaust system is provided ... | 04/24/2007 |
| 7208030 | Suspended particulate analyzer An apparatus analyzes components of particulate materials suspended in air. The apparatus includes a container into which the air is introduced, a discharging electrode arranged in the container to electrically charge the particulate materials contained in the air, ... | 04/24/2007 |
| 7204235 | Method of managing engine torque upon loss of engine coolant An engine torque management system of a V-style engine utilizes a cylinder head metal temperature sensor in each cylinder head to detect a temperature. When the sensor temperature rises above a threshold value for a particular time period, the response software shut... | 04/17/2007 |
| 7204082 | System for combustion of reformate in an engine exhaust stream In a diesel engine equipped with a catalytic HC reformer for injecting reformate into the engine exhaust stream to reductively regenerate one or more emissions control devices including but not limited to a lean nitrogen trap, a combustor is disposed in the exhaust ... | 04/17/2007 |
| 7205771 | Current-measuring circuit arrangement The circuit arrangement for measuring current flowing through a high-resistance consumer (R1) contains a current mirror circuit (1), in the first branch (T1) of which the high-resistance consumer is connected in series and in the second branch o... | 04/17/2007 |
| 7204081 | Exhaust gas purifying apparatus and method for internal combustion engine, and engine control unit An exhaust gas purifying apparatus and method for an internal combustion engine, and an engine control unit are provided for appropriately determining the amount of reducing agent supplied to a NOx selective reduction catalyst to ensure good exhaust gas characterist... | 04/17/2007 |
| 7204079 | Device for determining the mass of NOx stored in a NOx trap, and a system for supervising the regeneration of a NOx trap including such a device The invention relates to a device for determining the mass of NOx stored in a NOx trap in an exhaust line of a motor vehicle engine, the device comprising means for acquiring the richness of the exhaust gases, the NOx flowrate on the upstream side of the trap, and t... | 04/17/2007 |
| 7204080 | Air-fuel ratio controller for internal combustion engine A first integration value is obtained by performing time integration on a feedback control signal during the time interval between the instant at which the deviation between a reference signal and the output signal of an oxygen sensor reverses from a negative value ... | 04/17/2007 |
| 7201160 | Air-fuel ratio sensor monitor, air-fuel ratio detector, and air-fuel ratio control An air-fuel ratio sensor monitor is provided which is designed to monitor reactive characteristics or response rates of an air-fuel ratio sensor when an air-fuel ratio of a mixture to an internal combustion engine is changing to a rich side and to a lean side. The m... | 04/10/2007 |
| 7200989 | Apparatus and method for cleaning exhaust gas from an internal combustion engine An exhaust-gas cleaning system for cleaning the exhaust gas of an internal combustion engine with self ignition and/or with direct fuel injection has at least one oxidizing catalytic converter, disposed in an exhaust conduit of the engine, and has at least one devic... | 04/10/2007 |
| 7200990 | Method for controlling injection of reducing agent in exhaust gas from a combustion engine The invention relates to a method for controlling injection of a reductant into a NOx containing exhaust gas stream from a combustion engine, where combustion of a known fuel takes place and where the NOx is reduced by selective catalytic reduc... | 04/10/2007 |
| 7200988 | Air-fuel ratio control system and method An air-fuel ratio control system has an upstream catalyst, a downstream catalyst, a first sensor for detecting a first air-fuel ratio present upstream the upstream catalyst, a second sensor for detecting a second air-fuel ratio present between the catalysts and a th... | 04/10/2007 |
| 7200991 | Regeneration control of diesel particulate filter A filter (10) which traps particulate matter contained in the exhaust gas of a diesel engine (20) for a vehicle is regenerated by fuel injection control. A controller (16) calculates a representative value of the operating condition of the diese... | 04/10/2007 |
| 7197867 | Method for the simultaneous desulfation of a lean NOtrap and regeneration of a Diesel particulate filter High exhaust gas temperatures whereby sulfur is removed from a lean NOx traps simultaneously with regeneration of a Diesel particulate filter is provided by alternating engine operation in respectively defined lean and rich combustion modes. The duration and frequen... | 04/03/2007 |
| 7198764 | Gas treatment system and a method for using the same In one embodiment, a method of treating a gas stream comprises: controlling an amount of the NH3 entering a catalytic unit and converting NO2 and the NH3 to N2 in the catalytic unit, wherein greater than or equal to about ... | 04/03/2007 |
| 7197868 | Exhaust gas purification system of internal combustion engine An electronic control unit estimates progress of growth in a particle diameter of an ash accumulated in a diesel particulate filter (a DPF), based on an operating state of an engine. If it is determined that an estimated particle diameter of the ash achieved through... | 04/03/2007 |
| 7198952 | Catalyst deterioration detecting apparatus and method An upstream side catalyst and a downstream side catalyst are disposed in an exhaust passage. A first oxygen sensor is disposed between these two catalysts and a second oxygen sensor is disposed downstream of the downstream side catalyst. The air-fuel ratio is forcib... | 04/03/2007 |
| 7197866 | Control approach for use with dual mode oxygen sensor Electronic circuitry and control algorithms are described to automatically establish the output voltage of a linear exhaust gas oxygen sensor (e.g., a UEGO sensor) corresponding to an exhaust air-fuel ratio of stoichiometry. The apparatus and control logic herein de... | 04/03/2007 |
| 7198660 | Electrostatic device for ionic air emission Ionic emission electrostatic device (1) for depositing on the surface (sp) of a multitude of aerosol particles (p1, p2, . . . , pn) within a fluid (F), a quasi-homogeneous quantity of ions (iq). This electrostatic device (1) is... | 04/03/2007 |
