Patent application number | Description | Published |
20090132153 | CONTROLLING EXHAUST GAS RECIRCULATION IN A TURBOCHARGED COMPRESSION-IGNITION ENGINE SYSTEM - A method of controlling exhaust gas recirculation (EGR) in a turbocharged compression-ignition engine system including an engine, an induction subsystem in upstream communication with the engine, an exhaust subsystem in downstream communication with the engine, a high pressure EGR path between the exhaust and induction subsystems upstream of a turbocharger turbine and downstream of a turbocharger compressor, and a low pressure EGR path between the exhaust and induction subsystems downstream of the turbocharger turbine and upstream of the turbocharger compressor. A target total EGR fraction for compliance with exhaust emissions criteria is determined, then a target HP/LP EGR ratio is determined to optimize other engine system criteria within the constraints of the determined target total EGR fraction. | 05-21-2009 |
20110010079 | CONTROLLING EXHAUST GAS RECIRCULATION IN A TURBOCHARGED ENGINE SYSTEM - Methods and products for controlling exhaust gas recirculation. | 01-13-2011 |
20110252775 | EXHAUST FLOW INSULATOR FOR AN EXHAUST SYSTEM DEVICE - An exhaust system device comprising a liquid-cooled non-ferrous housing including a liquid cooling passage and defining a path for exhaust gas, and an exhaust flow insulator carried in the exhaust gas path of the housing to convey exhaust gas through the housing to limit heat transfer from exhaust gas to the housing. | 10-20-2011 |
20110265471 | EXHAUST DRIVEN AUXILIARY AIR PUMP AND PRODUCTS AND METHODS OF USING THE SAME - One exemplary embodiment may include an engine breathing system including an exhaust driven auxiliary air pump to flow air directly into the exhaust side of the breathing system. | 11-03-2011 |
20110276204 | BOOST ASSIST SYSTEM - According to one implementation of an engine system, a power device is selectively actuated to provide energy to a storage device. Energy from the storage device is selectively provided to a boost assist device to supplement the normal energy supply to a boost device and enable an increased power output of the engine in at least certain engine or vehicle operating conditions. In one form, the power device may be a source of electrical energy and the storage device is capable of storing an electrical charge. In another form, the power device is a fluid pump and the storage device is capable of storing pressurized fluid. Various methods may be employed to control operation of the power device and energy storage in the storage device. | 11-10-2011 |
20120036847 | METHOD FOR IMPROVING THE LIGHT-OFF OR REGENERATION BEHAVIOR OF AN AFTERTREATMENT DEVICE IN A VEHICLE SYSTEM - The process of active DPF regeneration requires that the DPF be brought to regeneration temperatures in excess of 550° C. to 600° C. for a period of time sufficient to accomplish soot burnoff in the DPF. Similarly, during cold start up it is desirable to bring the catalyst to light off temperature as soon as possible. The large thermal inertia of one or more turbochargers delays the exhaust gas at the DPF from reaching critical temperature quickly. The incorporation of a low thermal inertia, insulated, turbocharger bypass duct avoids thermal energy loss from exhaust gas to the turbine housing and shortens the time for the DPF to reach critical temperature for active DPF regeneration, or in the case of a catalytic converter, shortens time for catalyst to reach light off temperature. | 02-16-2012 |
20120087785 | MULTI-STAGE TURBOCHARGER ARRANGEMENT - The present invention relates to a multi-stage turbocharger arrangement ( | 04-12-2012 |
20120093631 | MULTI-STAGE TURBOCHARGER ARRANGEMENT - The present invention relates to a multi-stage turbocharger arrangement ( | 04-19-2012 |
20130195619 | EXHAUST TURBOCHARGER OF AN INTERNAL COMBUSTION ENGINE - The invention relates to an exhaust turbocharger ( | 08-01-2013 |
20130195620 | EXHAUST TURBOCHARGER - The invention relates to an exhaust turbocharger ( | 08-01-2013 |
20130343881 | TURBINE HOUSING OF AN EXHAUST TURBOCHARGER - A turbine housing of the exhaust turbocharger, having an inlet, which is adjoined by a spiral; having an outlet; and having a coolant arrangement; wherein the coolant arrangement has a plurality of coolant ducts, which branch off from an inlet duct section and open into an outlet duct section. | 12-26-2013 |
20140127002 | MULTI-STAGE TURBOCHARGER ARRANGEMENT - A multi-stage turbocharger arrangement (TLA), having a high-pressure stage, the high-pressure turbine of which has an associated first bypass valve; and having a low-pressure stage which is arranged downstream as viewed in the flow direction of the exhaust gases and which has a low-pressure turbine and a second bypass valve, wherein at least one of the bypass valves is arranged in an associated, cooled housing module. | 05-08-2014 |