Patent application number | Description | Published |
20080196392 | Flexible fuel injection for multiple modes of diesel engine exhaust aftertreatment - One embodiment is a system including a controller operable to control fuel injection events. The system is operable in a base mode, and at least one of a deNOx mode, a deSOx mode, and a deSoot mode. The base mode includes a pilot injection pulse, a main injection pulse, a post injection pulse, and a second post injection pulse. The deNOx mode includes a pilot injection pulse, a main injection pulse, and a post injection pulse. The deSOx mode includes a pilot injection pulse, a main injection pulse, a post injection pulse, a second post injection pulse, and a third post injection pulse. The deSoot mode includes a pilot injection pulse, a main injection pulse, a post injection pulse, a second post injection pulse, and a third post injection pulse. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings. | 08-21-2008 |
20110219746 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING AN AFTERTREATMENT SYSTEM HAVING A PARTICULATE FILTER AND A RICH NOX CONVERSION DEVICE - A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NO | 09-15-2011 |
20140020382 | MIXER FOR DEDICATED EXHAUST GAS RECIRCULATION SYSTEMS - Systems, methods and techniques for exhaust gas recirculation are provided. The system includes mixing exhaust flow from at least one cylinder of an engine with air in an air intake system prior to combustion. The exhaust flow from the at least one cylinder is accumulated prior to mixing and distributed into the intake air system in a controlled manner. | 01-23-2014 |
20140202433 | SYSTEMS AND METHODS FOR DEDICATED EXHAUST GAS RECIRCULATION AND CONTROL - Systems and methods for exhaust gas recirculation are provided. The system includes a dedicated exhaust gas recirculation loop for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a low pressure exhaust gas recirculation loop for increasing the exhaust gas recirculation amount above that provided by the dedicated exhaust gas recirculation loop. | 07-24-2014 |
20140230413 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING AN AFTERTREATMENT SYSTEM HAVING A PARTICULATE FILTER AND A RICH NOX CONVERSION DEVICE - A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NO | 08-21-2014 |
20140261322 | MULTI-FUEL FLOW SYSTEMS AND METHODS WITH DEDICATED EXHAUST GAS RECIRCULATION - Systems and methods for fuelling a plurality of cylinders of an internal combustion engine are disclosed. The system includes a dedicated exhaust gas recirculation system for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a fueling system to provide a first flow of fuel to each of the plurality of cylinders and a second flow of fuel to each of the dedicated cylinders that is in addition to the first flow of fuel. | 09-18-2014 |
20140278011 | ADVANCED EXHAUST GAS RECIRCULATION FUELING CONTROL - For exhaust gas recirculation (EGR) fueling control, at least one donor cylinder of a plurality of cylinders in an engine provides exhaust gas to an air intake for the plurality of cylinders. A fuel variable restriction initially provides fuel concurrent with an intake stroke for the at least one donor cylinder in response to a transition from withholding the fuel to the plurality of cylinders. | 09-18-2014 |
20140366532 | EXHAUST GAS RECIRCULATION AND CONTROL WITH TWIN SCROLL TURBINES - Systems and methods for internal combustion engine operation with exhaust gas recirculation and turbocharging are disclosed. The systems include an exhaust gas recirculation loop for recirculating exhaust gas flow from a first portion of the cylinders of the engine into an intake system prior to combustion. The system further includes a turbine with first and second inlets for receiving exhaust gas flows from respective first and second parts of the exhaust gas of the remaining portion of the cylinders. | 12-18-2014 |