| Entries |
| Document | Title | Date |
|---|
| 20130042610 | EGR Performance Balancing Restrictor For An Engine System - An engine system includes an exhaust gas recirculation conduit having an inlet in fluid communication with an exhaust conduit and an outlet in fluid communication with an intake air conduit. An exhaust gas recirculation performance balancing restrictor has an uninstalled position wherein the exhaust conduit defines a first backpressure at the inlet of the exhaust gas recirculation conduit. The exhaust gas recirculation performance balancing restrictor also has an installed position in which the exhaust gas recirculation performance balancing restrictor is removably disposed within the exhaust conduit downstream from the inlet of the exhaust gas recirculation conduit. In the installed position, the exhaust gas recirculation performance balancing restrictor provides a fixed flow restriction through the exhaust conduit to generate a second backpressure at the inlet of the exhaust gas recirculation conduit that is greater than the first backpressure. | 02-21-2013 |
| 20130042611 | COMBUSTION CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - An object of this invention is to provide a technology wherein a stratification of an EGR gas with an air-fuel mixture or a fresh air is achieved and capable of introducing the EGR gas in a large quantity, even when an engine load is high as an operation state of an internal combustion engine. With this invention, when a stratified combustion is performed by introducing the EGR gas, the fresh air is supercharged by a compressor, a fresh air blocking valve is closed to block inflow of the fresh air into a first intake port, and a variable valve mechanism opens a first intake valve before opening of a second intake valve, and, thereafter, opens the second intake valve. | 02-21-2013 |
| 20080223037 | TURBOCHARGER ASSEMBLY WITH CATALYST COATING - A turbocharger assembly is provided. The turbocharger assembly includes a turbine assembly having at least one internal aerodynamic surface and a compressor assembly having at least one internal aerodynamic surface. At least one of the at least one internal aerodynamic surface of the turbine assembly and the at least one internal aerodynamic surface of the compressor assembly is at least partially coated with a catalyst material. The internal aerodynamic surfaces of the turbine assembly may include a volute, variable geometry mechanism, turbine wheel, and outlet. The internal aerodynamic surfaces of the compressor assembly may include and inlet, compressor impeller, diffuser, variable geometry mechanism, and a volute. An internal combustion engine incorporating the disclosed turbocharger assembly is also provided. | 09-18-2008 |
| 20130025276 | METHOD AND DEVICE FOR PRODUCING A CARBON DIOXIDE-RICH GAS MIXTURE, METHOD AND DEVICE FOR IMPROVED OIL RECOVERY AND CORRESPONDING USE OF A GAS ENGINE - The invention relates to a method for producing a carbon dioxide-rich gas mixture ( | 01-31-2013 |
| 20090241541 | PRE-TURBO EXAHUST FILTRATION SYSTEM FOR INTERNAL COMBUSTION ENGINES - An air induction and exhaust system for a diesel engine provides particulate filtering upstream from a turbocharger assembly in the exhaust system. The air induction system provides for compression of the charge air, with an induction compressor being part of a turbocharger system. The exhaust and induction impellers are located outside of a vehicle engine compartment to aid thermal management. The exhaust system provides a diesel particulate filter which is located in the exhaust system in close proximity to an engine exhaust manifold and upstream from the exhaust impeller of the turbocharger. With the diesel particulate filter so located exhaust heat helps initiate carbon oxidation in the filter, and heat generated by oxidation in the filter contributes to turbocharger operation. | 10-01-2009 |
| 20130074494 | SYSTEM AND METHOD FOR ESTIMATING ENGINE EXHAUST MANIFOLD OPERATING PARAMETERS - A system and method are provided for estimating an operating parameter of an exhaust manifold of an engine. In the system, a flow value is determined that corresponds to a flow rate of exhaust gas through an EGR conduit fluidly coupled between the exhaust manifold and the intake manifold. The EGR conduit includes an exhaust gas cooler disposed in-line with the EGR conduit and a property of the exhaust gas exiting an exhaust gas outlet of the cooler is measured. The operating parameter of the exhaust manifold is estimated as a function of at least the flow value and the property of the exhaust gas exiting the exhaust gas outlet of the cooler. Illustratively, the operating parameter of the exhaust manifold may be exhaust manifold pressure and/or temperature. | 03-28-2013 |
| 20130081392 | EXHAUST GAS RECIRCULATION IN A RECIPROCATING ENGINE - A method of operating a reciprocating engine comprises recirculating exhaust gas from a first cylinder of the engine to an intake stream or air-fuel mixture of a second cylinder of the engine such that a boost pressure of the first cylinder is greater than a boost pressure of the second cylinder. An engine retrofit system and two-cycle engine employing aspects of the method are also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims. | 04-04-2013 |
| 20130074495 | SYSTEM FOR CONTROLLING AN AIR HANDLING SYSTEM INCLUDING AN ELECTRIC MOTOR-ASSISTED VARIABLE GEOMETRY TURBOCHARGER - A system and method are provided for controlling an air handling system for an internal combustion engine including a turbocharger having a variable geometry turbine fluidly coupled to an exhaust manifold of the engine and a compressor fluidly coupled to an intake manifold of the engine, and an electric motor coupled to a rotatable shaft connected between the compressor and the variable geometry turbine. A target torque required to drive the compressor to achieve target compressor operating parameters is determined, a maximum available torque that can be supplied by the variable geometry turbine in response to a target exhaust gas flow through the variable geometry turbine is determined, and the electric motor is enabled to supply supplemental torque to the rotatable shaft if the target torque is greater than the maximum available torque. | 03-28-2013 |
| 20090151353 | CONTROL SYSTEM FOR AN EGR PURGE SYSTEM - The exhaust within an exhaust gas recirculation (EGR) system should be purged to allow for access to the components of the EGR system. A method and system for controlling an EGR purge system is provided. The method and system may control the operation of drawing the exhaust out of the EGR system. The method may also control the operation of diving the exhaust out of the EGR system. | 06-18-2009 |
| 20130074496 | SYSTEM FOR CONTROLLING AN AIR HANDLING SYSTEM INCLUDING AN ELECTRIC PUMP-ASSISTED TURBOCHARGER COMPRESSOR - A system and method are provided for controlling an air handling system for an internal combustion engine including a turbocharger having a variable geometry turbine and a compressor having a fresh air inlet fluidly coupled to ambient and to an air outlet of an electric air pump. An air pump enable value as determined a function of target engine speed and total fuel target values and an air flow target is determined as a function of a target fresh air flow value. Operation of the electric air pump is activated to supply supplemental air flow to the fresh air inlet of the compressor if the air pump enable value is greater than a threshold air pump enable value and the air flow target does not exceed a maximum flow value. | 03-28-2013 |
| 20090158734 | METHOD FOR ADJUSTING THE OPERATION OF A TURBOMACHINE RECEIVING A RECIRCULATED EXHAUST GAS - A method for adjusting the operation of a turbomachine integrated with an exhaust gas recirculation (EGR) system is provided. The method may utilize the composition of an inlet fluid entering the turbomachine. The method may also utilize a variety of turbomachine operating data. | 06-25-2009 |
| 20090158735 | PRIME MOVER FOR AN EXHAUST GAS RECIRCULATION SYSTEM - A portion of the exhaust generated by a turbomachine is recirculated through an inlet portion by an exhaust gas recirculation system. The system reduces the level of constituents within the exhaust before the exhaust is recirculated. The turbomachine may be utilized to drive the exhaust gas through the system. | 06-25-2009 |
| 20100107631 | USING COMPRESSED INTAKE AIR TO CLEAN ENGINE EXHAUST GAS RECIRCULATION COOLER - Systems and methods for using compressed intake air that is free of soot particles to clean the EGR cooler of an internal combustion engine having a turbocharger are provided herein. One example system includes an EGR valve for selectively diverting a portion of exhaust gas through an EGR conduit to an intake side of the internal combustion engine, an EGR cooler disposed in the EGR conduit, the EGR cooler having an exhaust side and an intake side, and a compressed intake air delivery system including a compressed air conduit, the compressed intake air delivery system being configured to selectively divert a portion of compressed intake air compressed by the turbocharger through the EGR cooler to remove soot particles deposited in the EGR cooler. | 05-06-2010 |
| 20100095673 | INTERNAL COMBUSTION ENGINE HAVING TURBOCHARGING AND LOW-PRESSURE EXHAUST-GAS RECIRCULATION - The description relates to an internal combustion engine having a turbocharger, having a first particle filter in the intake section of the internal combustion engine and having a low-pressure EGR line that comprises a second particle filter. A fast-reacting low-pressure exhaust gas recirculation system with small dimensions can be realized by virtue of the EGR line branching off from the exhaust section upstream of the first particle filter, and the second particle filter being provided with a heater. The description also relates to a corresponding EGR method. | 04-22-2010 |
| 20090120089 | PURGE SYSTEM FOR AN EXHAUST GAS RECIRCULATION SYSTEM - The exhaust within an exhaust gas recirculation (EGR) system should be purged to allow for access to the components of the EGR system. A system and method for purging the EGR system is provided. The system and method may incorporate an: EGR purge fan, an EGR purge blower, or a turbomachine. The system and method may draw the exhaust out of the EGR system. The system and method may drive the exhaust out of the EGR system. | 05-14-2009 |
| 20120180479 | INTERNAL COMBUSTION ENGINE - In an internal combustion engine and a method of operation the internal combustion engine which includes a high pressure and a low pressure turbocharger having exhaust gas turbines arranged in series in an engine exhaust line provided with a high pressure exhaust gas recirculation line and a low pressure exhaust gas recirculation line via which exhaust gas can be conducted to an inlet line of the engine, the arrangement is switchable depending on the engine speed between an exhaust gas recirculation by way of the high pressure line and an exhaust gas recirculation by way of both, the high pressure and the low pressure line, to achieve low emissions and low fuel consumption. | 07-19-2012 |
| 20120180478 | EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An internal combustion engine comprises an intake system to deliver a compressed intake charge thereto. A venturi assembly is disposed in the intake system and defines a venturi defining a low pressure zone “Z” for the intake charge passing therethrough. An annular exhaust gas recirculation conduit distribution passage extends circumferentially about an inlet annulus of an intake manifold and receives diverted exhaust gas from an exhaust system for delivery to the intake charge through exhaust gas recirculation diffuser passages disposed at circumferentially spaced locations about the annular exhaust gas recirculation conduit distribution passage. | 07-19-2012 |
| 20120180477 | THERMAL MANAGEMENT SYSTEMS AND METHODS - Thermal management systems and methods related to controlling temperature of internal combustion engines are provided. In one embodiment, a thermal management system includes an air intake structure defining an air intake passage therethrough coupled to a plurality of cylinders in an engine, a first turbocharger including a first compressor positioned in the air intake passage, a second turbocharger including a second compressor positioned in the air intake passage between the first compressor and the plurality of cylinders, a multi-stage cooling assembly, positioned in the air intake passage between the first compressor and the second compressor, including an air-to-coolant intercooler for cooling intake air and an air-to-air heat exchanger for cooling intake air, and an air-to-coolant radiator fluidly coupled with the air-to-coolant intercooler of the multi-stage cooling assembly. | 07-19-2012 |
| 20120216530 | SYSTEMS AND METHODS FOR EXHAUST GAS RECIRCULATION - An engine system includes a first cylinder group, a second cylinder group, an inlet manifold coupled to the first cylinder group and the second cylinder group, an inlet passage coupled to the inlet manifold to provide inlet air to the inlet manifold, a first exhaust manifold coupled to the first cylinder group, a second exhaust manifold coupled to the second cylinder group, and a mixer pipe positioned within the second exhaust manifold and/or the intake passage to mix exhaust gas recirculation (EGR) gases exhausted by the second cylinder group that are delivered through the second exhaust manifold with inlet air. The mixer pipe forms an inlet end that is coupled to the second exhaust manifold and an outlet end that is located upstream of the cylinders in the first cylinder group and the cylinders in the second cylinder group. | 08-30-2012 |
| 20130118166 | COMPRESSOR FLOW CONTROL - An engine system is provided. The system comprises an engine, first and second compressors supplying air to the engine, a first compressor recirculation valve adjustable to two restriction levels, and a second compressor recirculation valve adjustable to three or more restriction levels. In this way, the first and second compressor recirculation valves may be controlled to avoid compressor surge while providing a sufficient amount of boost to meet power demands. | 05-16-2013 |
| 20120000197 | AUTOMOBILE-MOUNT DIESEL ENGINE WITH TURBOCHARGER AND METHOD OF CONTROLLING THE DIESEL ENGINE - An automobile-mount diesel engine with a turbocharger is provided, which includes an engine body with the turbocharger, the engine body being mounted in the automobile and supplied with fuel containing diesel fuel as its main component, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, an injection control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve, and an EGR amount control module for adjusting an amount of EGR gas introduced into the cylinder. EGR and fuel injection are adjusted based on speed-load conditions of the engine. | 01-05-2012 |
| 20120060498 | Warming Intake Air Using EGR Cooler in Dual-Throttle Boosted Engine System - A method for providing intake air to an engine in a vehicle comprises delivering compressed fresh air and EGR to the engine via first and second throttle valves coupled to an intake manifold of the engine. During a higher engine-load condition, an EGR exhaust flow is cooled in a heat exchanger and the cooled EGR exhaust flow is admitting to the intake manifold. During a lower engine-load condition, fresh air is warmed in the heat exchanger, and the warmed fresh air is admitted to the intake manifold. | 03-15-2012 |
| 20120285165 | ENGINE SYSTEM BASED ON TURBO CHARGER AND FUEL RATIO IMPROVING METHOD THEREOF - An engine system may include an electric or mechanical supercharger and an LP-EGR, basically with a turbocharger, an EGR valve, a channel control valve, and a bypass valve, which control the flow rate of external air and exhaust gas, may be integrally operated, and a operation section may be divided into a turbo-lag and low torque section, a mid-load section, and mid/high-load section such that the open amount of EGR valve, channel control valve, and bypass valve may be optimally controlled, such that it may be possible to improve availability for a low-speed/high-load section with turbo-lag reduced, using supercharger and considerably increase the ratio of fuel efficiency improvement in the low-speed/high-load section, using LP-EGR operating with supercharger. | 11-15-2012 |
| 20110283699 | EXHAUST GAS RECIRCULATION (EGR) SYSTEM - Various systems and methods are described for an exhaust gas recirculation (EGR) system coupled to an engine in a vehicle. One example method comprises, calculating an EGR mass flow from a difference between measurements of clean air mass flow and total mass flow, and correcting for a transient mass flow error. | 11-24-2011 |
| 20110289916 | EGR constructions for opposed-piston engines - A two-stroke, opposed-piston engine with one or more ported cylinders and uniflow scavenging includes an exhaust gas recirculation (EGR) construction that provides a portion of the exhaust gasses produced by the engine for mixture with charge air to control the production of NOx during combustion. | 12-01-2011 |
| 20110289918 | INTERNAL COMBUSTION ENGINE EXHAUST EMISSION CONTROL DEVICE AND EXHAUST EMISSION CONTROL METHOD - An exhaust emission control device for an internal combustion engine is provided that can suppress the adherence of HC to an EGR path and the like accompanying enrichment of the exhaust air/fuel ratio. The exhaust emission control device includes: a high-pressure EGR path | 12-01-2011 |
| 20110289917 | INTERNAL COMBUSTION ENGINE EXHAUST PURIFYING DEVICE AND EXHAUST PURIFYING METHOD - An exhaust purifying device for an internal combustion engine is provided that can regenerate an exhaust purifying filter at high efficiency without deteriorating the fuel economy. An exhaust purifying device of an engine ( | 12-01-2011 |
| 20110296833 | METHOD AND ARRANGEMENT FOR REDUCING AN NOX CONTENT IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE IN A VEHICLE - A method and an arrangement are provided for reducing a NOx-content in the exhaust gas of an internal combustion engine in a vehicle. The combustion engine includes at least one cylinder, an intake for the supply of air, an exhaust outlet for discharging exhaust gases into an exhaust after treatment system for reducing emissions of the internal combustion engine. An exhaust gas recirculation supplies exhaust gas from the exhaust outlet to the intake of the internal combustion engine, and at least two energy absorbers are provided in series in the exhaust flow downstream of the exhaust outlet and absorb energy of the exhaust gas. The exhaust gas is overheated to a first temperature by driving the combustion engine in a range of rotational speed producing hot exhaust gas at the exhaust outlet. The first temperature is sufficient to drive the at least two energy absorbers. A temperature of the exhaust gas is established downstream of the at least two energy absorbers sufficient to remove NOx from the exhaust gas in the exhaust after treatment system with an efficiency of more than 80%. | 12-08-2011 |
| 20110296832 | AVOIDANCE OF COOLANT OVERHEATING IN EXHAUST-TO-COOLANT HEAT EXCHANGERS - A method for operating an engine system comprises charging a cylinder of the engine system with exhaust from upstream of an exhaust turbine at a first rate. The method further comprises charging the cylinder with exhaust from downstream of the turbine at a second rate. The exhaust from downstream of the turbine is routed to the cylinder via a low-pressure exhaust-gas recirculation path. The method further comprises increasing the second rate relative to the first rate in response to a coolant-overheating condition. | 12-08-2011 |
| 20110072814 | GREENHOUSE GAS CAPTURE SYSTEM AND METHOD - A system and method for capturing emissions including a first vent configured to capture a first combustible fluid and an inlet configured to filter a noncombustible, wherein the combustible fluid and the noncombustible fluid are combined to form a diluted stream. A first valve may be in fluid communication with the first vent and the inlet, and the first valve may be configured to receive and control flow of the diluted stream. An engine may be in fluid communication with the first valve and configured to receive and combust the diluted stream. | 03-31-2011 |
| 20090313992 | System for Controlling Contaminant Deposition in Exhaust Gas Recirculation Coolers - A system for controlling contaminant deposition in an exhaust recirculation cooler mounted in a vehicle to allow exhaust gas to recirculate along a gas recirculation path from the exhaust assembly of the engine to the intake assembly of the engine. The cooler includes a housing defining an exhaust gas inlet leading to an internal gas cooling passageway which, in turn, leads to an exhaust gas outlet. A controller receives flow dependent signals and, in turn, regulates the flow of exhaust gas through the cooler to establish a turbulent flow in order to control the production of deposits in the cooler. Multiple, varying size coolers can be employed, with separate exhaust flows to the coolers being varied in by determining which coolers should be active, while still maintaining turbulent flow patterns. | 12-24-2009 |
| 20110214421 | COMPRESSOR OF AN EXHAUST-GAS TURBOCHARGER - The invention relates to a compressor ( | 09-08-2011 |
| 20090320467 | ARRANGEMENT FOR RECIRCULATION OF EXHAUST GASES IN A SUPERCHARGED COMBUSTION ENGINE - An arrangement for recirculation of exhaust gases of a supercharged combustion engine includes a return line for recirculating exhaust gases, an air-cooled EGR cooler and a bypass line having an extent such that it can lead recirculating exhaust gases past the EGR cooler. A valve is operable to be placed in a first position to lead the whole flow of recirculating exhaust gases through the EGR cooler during situations where there is no risk of ice formation in the EGR cooler, and in a second position to lead the whole flow of recirculating exhaust gases through the bypass line during situations where there is risk of ice formation in the EGR cooler. | 12-31-2009 |
| 20120096855 | SYSTEM FOR DETERMINING EGR DEGRADATION - A system for improving operation of an EGR system is presented. The system provides distinct models to estimate EGR temperature in response to a valve position. In one example, the system can judge EGR system operation when a state of a control valve is adjusted during driving conditions. | 04-26-2012 |
| 20090071151 | Configuration Having a Protected Turbocharger in an Exhaust Gas Recirculation Line and Motor Vehicle Having the Configuration - A configuration for treating exhaust gases of an internal combustion engine having a predetermined displacement volume, includes an exhaust gas recirculation line. Exhaust gas flowing through the exhaust gas recirculation line interacts with a turbocharger. A screening layer is provided in the exhaust gas recirculation line upstream of the turobcharger. The screening layer is larger than an average cross section of the exhaust gas recirculation line. A motor vehicle having at least one such configuration is also provided. | 03-19-2009 |
| 20080245070 | Method and system to operate diesel engine using real time six dimensional empirical diesel exhaust pressure model - A method to estimate real-time exhaust pressure in a compression ignition engine with variable geometry turbocharger and an EGR by adding the turbocharger RPM, the engine RPM, EGR value position and intake manifold pressure to determine a final turbocharger turbine inlet pressure to control NOx emissions. | 10-09-2008 |
| 20120023937 | FIXED RATE EGR SYSTEM - A method is provided for controlling EGR flow in turbocharged engine. The method comprises operating a low-pressure exhaust gas recirculation (LP-EGR) system at a fixed EGR percentage rate of fresh airflow from mid-load down to a minimum engine load, even as load changes. In this way, errors in the delivered LP-EGR rate during transient conditions may be alleviated by providing a fixed EGR percentage of fresh airflow at all engine loads within a fixed mode range. | 02-02-2012 |
| 20120023936 | NOZZLED TURBOCHARGER TURBINE - A turbine includes a turbine housing ( | 02-02-2012 |
| 20120023933 | METHOD AND SYSTEM FOR A TURBOCHARGED ENGINE - Methods and systems are provided for a boosted engine having a split intake system coupled to a split exhaust system. Aircharges of differing composition, pressure, and temperature may be delivered to the engine through the split intake system at different points of an engine cycle. In this way, boost and EGR benefits may be extended. | 02-02-2012 |
| 20100077747 | Exhaust system having parallel asymmetric turbochargers and EGR - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and at least one turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and at least two turbochargers driven by exhaust from the second exhaust manifold. The exhaust manifold may further have an exhaust gas recirculation circuit in fluid communication with only the first exhaust manifold. A number of turbochargers that receives exhaust from the first exhaust manifold may be less than a number of turbochargers that receives exhaust from the second exhaust manifold. | 04-01-2010 |
| 20090120088 | SYSTEM FOR REDUCING THE SULFUR OXIDES EMISSIONS GENERATED BY A TURBOMACHINE - A portion of the exhaust generated by a turbomachine is recirculated through an inlet portion by an exhaust gas recirculation system. The system reduces the level of Sulfur Oxides and other constituents within the exhaust before the exhaust is recirculated. The system may utilize sea water, fresh water, or combinations thereof; as part of a scrubbing process to reduce the Sulfur Oxides and other constituents. | 05-14-2009 |
| 20080209906 | Boost Pressure Control Apparatus and Boost Pressure Control Method of Internal Combustion Engine - A boost pressure control apparatus includes a turbocharger whose turbine is rotationally driven by exhaust of an internal combustion engine, and an EGR device, wherein EGR is performed at the time of supercharge, or the EGR amount is increased at the time of supercharge in comparison with when supercharge is not performed. If the internal EGR gas amount is increased by changing opening/closure timings of intake valves and/or exhaust valves via the EGR device, the energy of exhaust can be increased, so that the rotation speed of the turbocharger can be enhanced. Therefore, the responsiveness of boost pressure rise can be enhanced. Thus, a technology of more promptly raising the boost pressure is provided. | 09-04-2008 |
| 20110203270 | INTERNAL COMBUSTION ENGINE SYSTEM AND PARTICULATE FILTER UNIT FOR SUCH AN INTERNAL COMBUSTION ENGINE SYSTEM - This internal combustion engine system includes an internal combustion engine, an intake line, an exhaust line, a turbocharger, and an EGR assembly for recirculating a part of the exhaust gases. The EGR assembly has an EGR assembly inlet to collect the part of the exhaust gases, an EGR assembly outlet to allow the part of the exhaust gases towards the compressor. A particulate filter unit is also provided. In the exhaust line, a converter unit decreases nitrogen oxides. The particulate filter unit includes a first particulate filter component, in the exhaust line downstream of converter unit, which defines a first flow path; a second particulate filter component, in the EGR assembly, which defines a second flow path. The first and second particulate filter component are thermally connected, and the first and the second flow paths are separate. | 08-25-2011 |
| 20100058758 | EXHAUST GAS RECIRCULATION SYSTEM, TURBOMACHINE SYSTEM HAVING THE EXHAUST GAS RECIRCULATION SYSTEM AND EXHAUST GAS RECIRCULATION CONTROL METHOD - An exhaust gas recirculation system that includes an exhaust gas recirculation regulator operatively connectable to a turbomachine system, and regulating a predetermined amount of exhaust gas to be recirculated. The exhaust gas recirculation system further includes a measuring unit that measures fuel composition of incoming fuel, and a control unit connected to the EGR regulator and the measuring unit, and determining a Wobbe Index and/or reactivity of the incoming fuel based on the measured fuel composition and determining the predetermined amount of exhaust gas to be recirculated based on the determined Wobbe Index and/or reactivity. | 03-11-2010 |
| 20080295515 | ARRANGEMENT OF SUPERCHARGING UNITS FOR SUPERCHARGING AN INTERNAL COMBUSTION ENGINE - The invention is based on an arrangement of supercharging units ( | 12-04-2008 |
| 20080196408 | VARIABLE GEOMETRY EXHAUST COOLER - The present invention provides an exhaust cooler mounted to a tailpipe for receiving exhaust gas. The exhaust cooler includes a jet pump connectable to the tailpipe and a nozzle connectable to the tailpipe. The nozzle defines a nozzle opening between the tailpipe and the jet pump for communicating the exhaust gas from the tailpipe to the jet pump. A first member is included that is moveable between a closed position and an open position, the open position defining a first opening between the tailpipe and the jet pump for communicating the exhaust gas from the tailpipe to the jet pump. | 08-21-2008 |
| 20080271451 | Arrangement for Recirculation of Exhaust Gases of a Supercharged Internal Combustion Engine - The present invention relates to an arrangement for recirculation of exhaust gases of a supercharged combustion engine. The arrangement comprises an exhaust line intended to lead exhaust gases out from the combustion engine, an inlet line intended to lead air to the combustion engine, a compressor adapted to compressing the air in the inlet line to above atmospheric pressure, and return line which connects the exhaust line to the inlet line. The arrangement comprises an EGR cooler in which the recirculating exhaust gases in the return line are cooled by the air in a portion of the inlet line which is situated upstream of the compressor with respect to the direction of flow of the air in the inlet line. | 11-06-2008 |
| 20080256949 | Arrangement for Recirculation of Exhaust Gases of a Supercharged Internal Combustion Engine - An arrangement for recirculation of exhaust gases of a supercharged combustion engine in a vehicle. A first EGR cooler effects a first step of cooling the recirculating exhaust gases in the return line by means of a cooling medium in the form of a cooling air flow, and a second EGR cooler effects a second step of cooling the recirculating exhaust gases in the return line by means of a cooling medium which is at substantially the temperature of the surroundings. The first EGR cooler is fitted in an internal region of the vehicle which is adapted to have the cooling air flow passing through it during operation of the combustion engine. | 10-23-2008 |
| 20090173071 | Diesel engine with exhaust gas recirculation system - A diesel engine with an exhaust gas recirculation system. The diesel engine is equipped with a turbocharger, driven by exhaust gas from the engine combustion chamber, providing an intake air flow and an inter-cooler for cooling the intake air compressed by the turbocharger. The exhaust gas recirculation system includes an exhaust gas diverter for diverting a portion of the exhaust gas for recirculation back into the combustion chamber. The diverted exhaust gas is cooled and then forced, with a hydraulic turbine driven blower, into the flow of compressed intake air exiting the inter-cooler. The mixture of compressed intake air and the re-circulated exhaust gas is then directed into the intake manifold of the engine then into the engine combustion chamber. The hydraulic turbine driven blower is driven with high-pressure hydraulic fluid provided by a hydraulic pump driven by the engine drive shaft. A hydraulic bypass system with a bypass control valve permits control of the hydraulic turbine by partial or complete bypassing of the hydraulic turbine. The re-circulated exhaust gas may be cooled with radiator water. In preferred embodiments the exhaust gas is cooled with three stages of air cooling. Cooling of the first stage cooler is provided by a portion of the turbocharger compressed air which than provides driving power to the turbo-fan turbine that drives the cooling fan and supplies cooling air flow to the second and third stage EGR coolers. Optionally, the air to air after-cooler is removed from the front of the engine location and included into the overall EGR—after-cooler turbo-fan air cooled package. | 07-09-2009 |
| 20090019851 | SYSTEM AND METHOD FOR EXHAUST GAS RECIRCULATION - A system and method for controlling EGR of an internal combustion engine is presented. The system is capable of controlling EGR over a wide range of flow rates. | 01-22-2009 |
| 20090019850 | Engine Process - A pressure surface is propelled within an engine chamber. Air is introduced into the chamber. The air in the chamber is compressed with the pressure surface. The compressed air is charged with fuel. The fuel is combusted to propel the pressure surface within the chamber. The air and the combusted fuel are exhausted from the chamber. A turbocharger is powered with the exhaust to compress air. The air compressed by the turbo charger is passed into the chamber to propel the pressure surface in the chamber. | 01-22-2009 |
| 20090049835 | SUPERCHARGED ENGINE WITH EGR DEVICE - An engine ( | 02-26-2009 |
| 20090183509 | MULTI-FUNCTIONAL VALVE FOR USE IN AN EXHAUST BREATHING SYSTEM - One embodiment includes a housing ( | 07-23-2009 |
| 20090205334 | Systems and Methods for Exhaust Gas Recirculation (EGR) for Turbine Engines - Systems and methods may be provided for exhaust gas recirculation. The systems and methods may include receiving, via an intake section, inlet air at an input of a compressor, generating compressed air at the compressor using the received inlet air, and providing the compressed air from the compressor to a combustor, where the combustor produces combustion involving the compressed air and fuel. The systems and methods may also include receiving combustion products associated with the combustion at a turbine component, where the turbine component releases exhaust gases, and recirculating at least a portion of the exhaust gases to the intake section via a recirculation line, where the recirculated exhaust gases raise a temperature of the inlet air. | 08-20-2009 |
| 20100037608 | Combined High Temperature Exhaust Gas and Charge Air Cooler with Protective Internal Coating - A combined diesel engine exhaust gas and charge air cooler utilizes an all-aluminum construction and a high temperature and corrosion resistant internal coating. | 02-18-2010 |
| 20100146967 | EMISSION SYSTEM, APPARATUS, AND METHOD - A system, apparatus, and method for exhaust gas recirculation (EGR) is disclosed. The EGR apparatus includes an EGR circuit having an input configured to receive an exhaust gas from an engine exhaust port, an output configured to return the exhaust gas to an intake port of the engine, and an EGR path configured to circulate the exhaust gas between the input and the output. The EGR apparatus also includes an expansion turbine connected to the EGR circuit in the EGR path downstream of the input to receive the exhaust gas, the expansion turbine configured to expand the exhaust gas and reduce a pressure thereof. The EGR apparatus further includes an EGR compressor connected to the EGR path downstream of the expansion turbine and decoupled from the expansion turbine, the EGR compressor configured to compress the exhaust gas for circulation to the output. | 06-17-2010 |
| 20100154416 | CROSSOVER EXHAUST DUCT - A crossover for ducting exhaust produced by an engine. The crossover includes a front inside passage and rear outside passage. The front inside passage is configured to direct exhaust from one or more cylinders associated with a front of the engine to an inside volute of a turbocharger turbine. The rear outside passage is configured to direct exhaust from one or more cylinders associated with a rear of the engine to an outside volute of the turbocharger turbine. The inside volute is closer to the rear of the engine than the outside volute is. | 06-24-2010 |
| 20100162699 | EXHAUST GAS COOLER - The present invention relates to an exhaust gas cooler ( | 07-01-2010 |
| 20090077967 | High Flow (Delta P) Differential Pressure EGR System with Provision for Both Flow Control and OBD Monitor - In one approach, a method for measuring exhaust gas recirculation flow in an engine is provided. The method comprises separating EGR flow into at least a first flow and a second flow, passing the separated first flow through a restriction region, where the first flow passes through the restriction region separately from the separated second flow, combining the separated second flow and inducting the combined flows into a cylinder of the engine, where the EGR flow is separated and then combined within a common EGR passage. | 03-26-2009 |
| 20090077968 | Turbocharged Engine Control Operation with Adjustable Compressor Bypass - A method of operating an engine having a turbocharger and a high pressure EGR system is provided. In one example, a compressor of the turbocharger may have a recirculation passage with a recirculation valve coupled therein. The method may include during a first engine airflow condition: delivering at least some high pressure un-cooled EGR to the intake, downstream of the compressor, operating the throttle at a first throttle amount, and operating the compressor bypass valve at a first bypass amount to increase exhaust gas temperature; and during a second engine airflow condition higher than the first engine airflow: delivering at least some high pressure cooled EGR to the intake, downstream of the compressor, operating the throttle at a second throttle amount more open than the first amount, and operating the compressor bypass valve at a second bypass amount more closed than the first amount. | 03-26-2009 |
| 20100146968 | EMISSION SYSTEM, APPARATUS, AND METHOD - A system, apparatus, and method for exhaust gas recirculation (EGR) is disclosed. The EGR apparatus includes an EGR circuit having an input configured to receive an exhaust gas from an engine exhaust port, an output configured to return the exhaust gas to an intake port of the engine, and an EGR path configured to circulate the exhaust gas between the input and the output. The EGR apparatus also includes an EGR compressor connected to the EGR circuit in the EGR path downstream of the input and EGR compressor configured to compress the exhaust gas for circulation to the output. The EGR apparatus further includes a valve system positioned in the EGR circuit and upstream of the EGR compressor to selectively cut off a flow of the exhaust gas to the EGR compressor and selectively inject ambient air into the EGR path. | 06-17-2010 |
| 20080229744 | EXHAUST GAS RECIRCULATION FOR AN INTERNAL COMBUSTION ENGINE AND METHOD THEREFOR - An internal combustion engine ( | 09-25-2008 |
| 20090107141 | SYSTEM FOR RECIRCULATING THE EXHAUST OF A TURBOMACHINE - A portion of the exhaust generated by a turbomachine is recirculated through an inlet portion by an exhaust gas recirculation system. The system reduces the level of harmful constituents within the exhaust before the exhaust is recirculated. | 04-30-2009 |
| 20100293944 | AIR TURBINE DRIVEN EGR PUMP FOR DIESEL ENGINES - A power plant includes an engine configured to receive charge air and produce exhaust. A first turbo machine is configured to be driven by the exhaust and drive a compressor that receives air. The compressor is configured to produce the charge air. A second turbo machine is configured to receive the charge air and rotationally drive a pump in response thereto. The pump is configured to receive an EGR from the exhaust and introduce the pumped EGR to the charge air. The power plant also includes an exhaust gas recirculation passage. The second turbo machine includes a turbine rotationally coupled to the pump. The turbine has an expanded air passage, and the pump is arranged in the exhaust gas recirculation passage. A pre-cooler is arranged in the expanded air passage and in the exhaust gas recirculation passage upstream from the pump. | 11-25-2010 |
| 20110011084 | EXHAUST GAS RECIRCULATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An EGR system includes an exhaust gas recirculation pipe recirculating exhaust gas flowing through an exhaust pipe into an intake pipe upstream of a compressor of a supercharger. A swirling flow generator generates a swirling flow of intake air and exhaust gas along an inner surface of the intake pipe in order to centrifugally separate foreign matters from the intake air and the exhaust gas. A foreign-matters-collecting chamber collects the centrifugally separated solid foreign matters therein. The separated solid foreign matters are discharged through a discharge opening and a discharge pipe. | 01-20-2011 |
| 20110030372 | EGR APPARATUS FOR INTERNAL COMBUSTION ENGINE - A mixing device of an EGR apparatus has a double pipe structure being composed of a first cylindrical member and a second cylindrical member, wherein the first and second cylindrical members are coaxially arranged with each other. Cyclone blades are provided between the first and second cylindrical members, so that EGR gas introduced from an inlet portion into an inside of the first cylindrical member flows along an cylindrical inner wall of the first cylindrical member. A swirl flow is generated in the EGR gas passing through the cyclone blades, so that the EGR gas spirally flows in a downstream side to remove foreign material, such as flocculated water from the EGR gas. | 02-10-2011 |
| 20120266594 | INTERNAL COMBUSTION ENGINE - The present invention relates to an internal combustion engine ( | 10-25-2012 |
| 20110041495 | SYSTEMS AND METHODS FOR EXHAUST GAS RECIRCULATION - Exhaust gas recirculation systems and methods related to internal combustion engines are provided. In one embodiment, a system comprises an engine having at least a first cylinder group and a second cylinder group, with at least one cylinder in each cylinder group, an intake manifold having an inlet and a first outlet coupled to the first cylinder group and a second outlet coupled to the second cylinder group, an intake passage coupled to the intake manifold inlet, and first and second exhaust manifolds coupled to the first and second cylinder groups, respectively. An exhaust gas recirculation system is further coupled between the second exhaust manifold and the intake passage, and has a number of openings positioned within the intake passage, the number of openings equal to or greater than a number of cylinders having an intake event between successive exhaust events occurring in the second cylinder group. | 02-24-2011 |
| 20110113775 | VALVE ACTUATOR FOR TURBOCHARGER SYSTEMS - A turbocharger system for an engine is provided. The turbocharger system includes a low pressure turbocharger that has a low pressure compressor and a low pressure turbine and a high pressure turbocharger that has a high pressure compressor and a high pressure turbine. The turbocharger system further includes a bypass valve for controlling a gas stream hi the turbocharger system. The bypass valve includes an actuator operable to control the bypass valve, and the actuator is an electronic solenoid controlled hydraulic actuator with a position feedback sensor to detect the position of the bypass valve. | 05-19-2011 |
| 20100132357 | INTERNAL COMBUSTION ENGINE SYSTEM - The invention relates to an internal combustion engine system ( | 06-03-2010 |
| 20100132356 | Purification System for Variable Post Injection in LP EGR and Control Method for the Same - A purification system for variable post injection in LP EGR, the system includes a turbo charger disposed downstream of a diesel engine, a DPF (catalyzed particulate filter) disposed downstream of the turbo charger, a NOx reduction apparatus disposed upstream or downstream of the DPF, a bypass line diverged from the DPF for mixing exhaust gas and air inflowing the turbo charger, a exhaust gas control portion disposed downstream of the DPF for controlling flowing of the exhaust gas and a lean/rich controlling portion for controlling lean/rich of the exhaust gas. | 06-03-2010 |
| 20110131982 | INLET SYSTEM FOR AN EGR SYSTEM - An embodiment of the present invention takes the form of a system that may recirculate a portion of the exhaust of at least one turbomachine where it may be mixed with the inlet air and re-enter the turbomachine without affecting reliability and availability of the unit. | 06-09-2011 |
| 20110209473 | SYSTEM AND METHOD FOR WASTE HEAT RECOVERY IN EXHAUST GAS RECIRCULATION - A system and method for waste heat recovery in exhaust gas recirculation is disclosed. The system includes an engine having an intake manifold and an exhaust manifold, an exhaust conduit connected to the exhaust manifold, and a turbocharger having a turbine and a compressor, the turbine being connected to the exhaust conduit to receive a portion of the exhaust gas from the exhaust manifold. The system also includes an EGR system connected to the exhaust conduit to receive a portion of the exhaust gas, with the EGR system including an EGR conduit that is connected to the exhaust conduit to receive a portion of the exhaust gas, a heat exchanger connected to the EGR conduit and being configured to extract heat from the exhaust gas, and a waste heat recovery system connected to the heat exchanger and configured to capture the heat extracted by the heat exchanger. | 09-01-2011 |
| 20100064686 | INTERNAL COMBUSTION ENGINE AND CONTROL SYSTEM FOR INTERNAL COMBUSTION - An internal combustion engine having a turbocharger is provided. The engine includes a turbine of the turbocharger located in an exhaust system of the engine, an upstream side catalyst located upstream of the turbine, a catalyst bypass passage bypassing the upstream side catalyst, a catalyst bypass passage on/off valve for opening and closing the catalyst bypass passage, and a first exhaust gas recirculation passage for recirculating a part of exhaust gases from a portion between the upstream side catalyst and the turbine to an intake system of the engine. The engine, that further includes a second exhaust gas recirculation passage for recirculating a part of exhaust gases from an upstream side of the upstream side catalyst to the intake system, and a switching valve for switching between the first exhaust recirculation passage and the second exhaust recirculation passage, is provided. | 03-18-2010 |
| 20100071365 | EXHAUST GAS RECIRCULATION SYSTEM - An exhaust gas recirculation system for an internal combustion engine is disclosed. The exhaust gas recirculation system can include a first turbocharger and a second turbocharger with a particulate filter located between the two turbochargers. The first turbocharger can have a first exhaust turbine and a first charger while the second turbocharger can have a second exhaust turbine and a second charger. The particulate filter can be located between the first exhaust turbine and the second exhaust turbine and thereby remove particulates from an exhaust gas before it reaches the second exhaust turbine. In some instances, an exhaust gas recirculation line can be included and have an inlet that is located downstream from the particulate filter. In addition, the exhaust gas recirculation line can have an outlet that is located between the first charger and the second charger, or in the alternative downstream from the first charger. It is appreciated that the internal combustion engine can be a diesel engine and the particulate filter can be a diesel particulate filter. | 03-25-2010 |
| 20110100001 | Exhaust Gas Recirculation Butterfly Valve - An exhaust gas recirculation system includes a butterfly valve in which the leak path through the valve is controlled by keeping the clearance between either a shaft of the valve and two bushings small or the clearance between the bushings and the counter bores in the valve element small, and making the other clearance larger. | 05-05-2011 |
| 20110061380 | Motor Vehicle Internal Combustion Engine EGR Loop - An EGR loop of an internal combustion engine of a motor vehicle, comprising the engine ( | 03-17-2011 |
| 20110048004 | Motor Vehicle Internal Combustion Engine EGR Loop - A motor vehicle internal combustion engine EGR loop, in which: | 03-03-2011 |
| 20110048002 | TURBINE EXHAUST RECIRCULATION - An exhaust gas recirculation (EGR) system and a method for recirculating an exhaust gas stream from an outlet to an inlet of a turbomachine are provided. The EGR system includes a guide element to channel the exhaust gas stream from the inlet to the outlet and a Rankine cycle system through which a working fluid is circulated. The Rankine cycle system including serially a high temperature heat exchanger in heat exchange relationship with the guide element; an expansion device coupled to a generator; a low temperature heat exchanger in heat exchange relationship with a cooling medium; and a pump. The exhaust stream at the outlet has a first temperature and the exhaust stream downstream of the high temperature heat exchanger has a second temperature that is lower than the first temperature. | 03-03-2011 |
| 20110048003 | INTEGRATED EGR MIXER AND PORTED SHROUD HOUSING COMPRESSOR - An exemplary compressor housing includes a compressor volute; concentric walls that define an annular passage and a compressor wheel shroud disposed about a central axis where a compressor wheel positioned with respect to the shroud has an intended direction of rotation about the central axis; positioned with respect to the central axis, from a lower axial position to a higher axial position, a gas inlet to the annular passage, one or more ports extending between the shroud and the annular passage and a nozzle; and a gas volute to provide, to the gas inlet to the annular passage, gas having swirl in a direction opposite the intended direction of rotation of the compressor wheel. Various other exemplary devices, systems, methods, etc., are also disclosed. | 03-03-2011 |
| 20110048001 | EXHAUST GAS RECIRCULATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An object of the present invention is to provide a technology of preventing, in an exhaust gas recirculation system having a low pressure EGR passage that recirculates a part of the exhaust gas from the exhaust passage at some point downstream of the exhaust gas purification apparatus to the intake passage, fragments of the exhaust gas purification apparatus from entering the intake system through the low pressure EGR passage in case that breakage of the exhaust gas purification apparatus occurs. The inventive system has a low pressure EGR valve provided in the low pressure EGR passage, an EGR control unit (S | 03-03-2011 |
| 20110030371 | SYSTEM USING SUPPLEMENTAL COMPRESSOR FOR EGR - A system for driving an EGR stream for an engine includes an exhaust gas turbine, a main compressor and a supplemental EGR compressor. The turbine drives the main compressor to pressurize intake air and drives the supplemental EGR compressor to pressurize an EGR exhaust gas stream to be introduced into the intake air system. A supplemental EGR compressor takes suction of exhaust gas downstream from the turbine. A three-way valve proportions exhaust gas between the engine exhaust gas discharge conduit and the suction of the supplemental EGR compressor. The turbine drives a shaft and the main compressor and the supplemental EGR compressor are driven by having corresponding compressor wheels fixed onto the common shaft. | 02-10-2011 |
| 20110173975 | Turbocharger - In one example, a turbocharger for an internal combustion engine is described. The turbocharger comprises a casing containing an impeller having a full blade coupled to a hub that rotates about an axis of rotation. The casing includes a bleed port and an injection port. The full blade includes a hub edge, a casing edge, and a first distribution of angles, each angle measured between the axis of rotation and a mean line at the hub edge at a meridional distance along the hub edge. The full blade includes a second distribution of angles, each angle measured between the axis of rotation and a mean line at the casing edge at a meridional distance along the casing edge. Further, various systems are described for affecting the aerodynamic properties of the compressor and turbine components in a way that may extend the operating range of the turbocharger. | 07-21-2011 |
| 20110252794 | EXHAUST TREATMENT SYSTEM FOR INTERNAL COMBUSTION ENGINE - Systems and methods are provided for operating an engine exhaust system. In one example, a system comprises a first valve, and a second valve coupled to the first valve via a shaft. A first position of the shaft situates the first valve closed and the second valve open, a second position situates the second valve closed and the first valve open by a first amount, and a third position situates the second valve closed and the first valve open by a second, larger amount. | 10-20-2011 |
| 20080223038 | Arrangement for Recirculating and Cooling Exhaust Gas of an Internal Combustion Engine - The invention relates to an arrangement for recirculating and cooling exhaust gas of an internal combustion engine ( | 09-18-2008 |
| 20110162360 | EGR MIXER FOR HIGH-BOOST ENGINE SYSTEMS - An EGR mixer comprises an upstream conduit section having a contracting flow area in a direction of air flow through the mixer, a downstream conduit section having an expanding flow area in the direction of air flow through the mixer, a slot formed in the downstream conduit section for admitting exhaust to the air flow, and an abrupt flow-expanding ridge disposed between the upstream and downstream conduit sections. With the EGR mixer configured in this manner, recirculated exhaust may be effectively homogenized into an intake air flow with reduced drag. | 07-07-2011 |
| 20080202118 | Diesel engine system with exhaust gas recirculation - A diesel engine system includes a diesel engine, a throttle valve, an EGR (Exhaust Gas Recirculation) path, an EGR valve and a controller. The throttle valve controls a flow rate of intake air to the diesel engine. Exhaust gas is recirculated along the EGR path from an exhaust port to an intake port of the diesel engine. The EGR valve controls a flow rate of the exhaust gas. The controller controls the throttle valve and the EGR valve such that an opening of the throttle valve decreases and an opening of the EGR valve increases when a load of the diesel engine increases. The controller controls the EGR valve such that the opening of the EGR valve increases after the opening of the EGR valve is held constant for a first predetermined holding time. | 08-28-2008 |
| 20090071150 | Mixing Unit for LP-EGR Condensate Into the Compressor - The present invention is a an exhaust gas return system ( | 03-19-2009 |
| 20110131979 | EGR COOLER CLEANING SYSTEM AND METHOD - A method for dislodging exhaust gas deposits from an exhaust gas recirculation (EGR) cooler ( | 06-09-2011 |
| 20110131980 | Dual-Inlet Supercharger for EGR Flow Control - A supercharger compressor includes a plurality of rotors rotatably mounted in a housing, a first inlet for air, a second inlet for recirculated exhaust gas, and a flow separator. The flow separator is arranged interior the housing and configured to form a slideable seal with at least one rotor of the plurality of rotors, the slideable seal fluidically isolating the first inlet from the second inlet, at least in part, and retarding pressure equalization therebetween. | 06-09-2011 |
| 20080216476 | TURBOCHARGED INTERNAL COMBUSTION ENGINE WITH EGR SYSTEM HAVING REVERSE FLOW - An internal combustion engine includes a block defining at least one combustion cylinder. An intake manifold is fluidly coupled with at least one combustion cylinder, and an exhaust manifold is also fluidly coupled with at least one combustion cylinder. An exhaust gas recirculation system is fluidly coupled between the exhaust manifold and the intake manifold. A turbocharger includes a variable geometry turbine fluidly coupled with the exhaust manifold. The variable geometry turbine is movable to a first position effecting fluid flow of exhaust gas from the exhaust manifold to the intake manifold, and movable to a second position effecting fluid flow of charge air to the variable geometry turbine. | 09-11-2008 |
| 20080216475 | Internal combustion engine - In an internal combustion engine with at least one turbo-charger including a compressor and a turbine, a charge air supply line for supplying compressed air from the compressor to the engine cylinders which are divided into a first group and a second group, an exhaust gas collection line having a first section connected to the first group of cylinders and a second section connected to the second group of cylinders, a first exhaust gas line which connects the first section of the exhaust gas collection line to the turbine, a recirculation line for returning exhaust gas from the second section of the exhaust gas collection line to the charge air supply line, and a first control device for controlling the exhaust gas flow from the second section to the first section of the exhaust gas collection line, a second control device is arranged in the first exhaust gas line for controlling the exhaust gas flow to the turbine and a third control device is arranged in the exhaust gas recirculation line for controlling the exhaust gas flow recirculated to the charge air supply line. | 09-11-2008 |
| 20100024417 | Exhaust system having 3-way valve - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold, a second exhaust manifold, and an exhaust gas recirculation circuit. The exhaust system may also have a fixed geometry turbocharger with a first volute configured to receive exhaust from the first exhaust manifold, and a second volute configured to receive exhaust from the second exhaust manifold. The exhaust system may also have a recirculation control valve in fluid communication with the first exhaust manifold, the second exhaust manifold and the exhaust gas recirculation circuit. The recirculation control valve may have a valve element movable to selectively adjust a flow of exhaust in the exhaust gas recirculation circuit, the first volute, and the second volute. | 02-04-2010 |
| 20100024416 | Exhaust system having parallel asymmetric turbochargers and EGR - An exhaust system for a use with a combustion engine is provided. The exhaust system may have a first exhaust manifold configured to receive exhaust from the engine, and a first turbocharger driven by exhaust from the first exhaust manifold. The exhaust system may also have a second exhaust manifold configured to receive exhaust from the engine in parallel with the first exhaust manifold, and a second turbocharger driven by exhaust from the second exhaust manifold and having a different flow capacity than the first turbocharger. The exhaust system may further have an exhaust gas recirculation circuit in fluid communication with the second exhaust manifold. | 02-04-2010 |
| 20090145126 | METHOD AND SYSTEM FOR CONTROLLING AN EXHAUST GAS RECIRCULATION SYSTEM - A method and system for controlling an exhaust gas recirculation (EGR) system is provided. The method and system may incorporate a device or devices that continuously monitors an exhaust stream for harmful constituents. The method and system may control components of the EGR system based on the concentration of harmful constituents within the exhaust. | 06-11-2009 |
| 20110131981 | INLET SYSTEM FOR AN EGR SYSTEM - An embodiment of the present invention takes the form of a system that may recirculate a portion of the exhaust of at least one turbomachine where it may be mixed with the inlet air and re-enter the turbomachine without affecting reliability and availability of the unit. | 06-09-2011 |
| 20110302919 | TURBOCHARGED ENGINE WITH EXHAUST GAS RECYCLING - The present disclosure refers to a turbocharged internal combustion engine with exhaust gas recycling, comprising an intake manifold, an exhaust manifold, a fresh air turbocharger and an exhaust supercharger, wherein the intake manifold is divided by a separating wall into a fresh air passage and an exhaust passage, one of the passages being connected to inlet openings of cylinders of the engine, the fresh air passage being connected to the outlet of the compressor of the fresh air turbocharger, the exhaust passage being connected to the outlet of the compressor of the exhaust supercharger and the separating wall being formed with orifices connecting the two passages. | 12-15-2011 |
| 20110302918 | Motor vehicle and method for operating a combustion engine - The invention relates to a motor vehicle with a combustion engine ( | 12-15-2011 |
| 20120036848 | HIGH-PRESSURE EXHAUST-GAS RECIRCULATION SYSTEM WITH HEAT RECOVERY - A method for operation of a high pressure exhaust-gas recirculation (EGR) system is provided. The method includes transferring heat from an exhaust flow through an EGR cooler to an engine coolant, the EGR cooler coupled to an EGR line fluidly coupled in parallel with a turbine and directing a controlled portion of the exhaust flow from the EGR cooler to an engine intake. The method further includes directing another controlled portion of the exhaust flow from the EGR cooler to the surrounding atmosphere. | 02-16-2012 |
| 20120304641 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE EQUIPPED WITH TURBOCHARGER - A control apparatus for an internal combustion engine includes a turbocharger; an exhaust gas purifying catalyst which is arranged at a section downstream of a turbine in the exhaust passage; and a low pressure EGR passage which connects a section downstream of the exhaust gas purifying device in the exhaust passage and a section upstream of a compressor in the intake passage. The compressor is provided with a movable vane mechanism capable of varying throttled quantity of a flow passage of intake gas by moving diffuser vanes. The movable vane mechanism is controlled so that the throttled quantity of the flow passage is decreased when the exhaust gas is led to the compressor via the low pressure EGR passage as compared with a case when the exhaust gas is not led to the compressor. | 12-06-2012 |
| 20120304640 | EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation device for an internal combustion engine having a supercharger has an intake air passage that intakes intake air for the internal combustion engine, an exhaust passage that carries away exhaust air from the internal combustion engine, an exhaust gas recirculation passage connected to the intake air passage, and an exhaust gas recirculation valve interposed within the exhaust gas recirculation passage. The exhaust gas recirculation passage recirculates a part of the exhaust gas based on an openness of the exhaust gas recirculation valve to control an amount of exhaust recirculation introduced into the intake air passage. A first end of the exhaust gas recirculation passage is connected to the intake air passage upstream of a compressor of the supercharger. A second end of the exhaust gas recirculation passage is connected to the exhaust passage downstream of a turbine of the supercharger. | 12-06-2012 |
| 20080264060 | Exhaust Gas Recirculation Mixer for a Turbo-Charged Internal Combustion Engine - An EGR mixer arrangement for mixing gas into the intake air of a turbocharged internal combustion engine is provided. The arrangement includes an inlet port with connection for a branch pipe, which with an insertion section opens out into the inlet port. The insertion section forms a diffuser vane with a surface which is positively double-bent in the direction of flow of the intake air and which extends in a curved shape in the flow direction of the inlet port. | 10-30-2008 |
| 20120204558 | INTERNAL COMBUSTION ENGINE - An internal combustion engine having an exhaust gas recirculation device for recirculating exhaust gas of the internal combustion engine to a fresh-air side of the internal combustion engine. For this purpose, it is provided that the exhaust gas recirculation device has at least one compressor for compressing the exhaust gas supplied to the fresh-air side of the internal combustion engine. | 08-16-2012 |
| 20120042648 | CONFIGURATION HAVING A PROTECTED TURBOCHARGER IN AN EXHAUST GAS RECIRCULATION LINE AND MOTOR VEHICLE HAVING THE CONFIGURATION - A configuration for treating exhaust gases of an internal combustion engine having a predetermined displacement volume, includes an exhaust gas recirculation line. Exhaust gas flowing through the exhaust gas recirculation line interacts with a turbocharger. A screening layer is provided in the exhaust gas recirculation line upstream of the turobcharger. The screening layer is larger than an average cross section of the exhaust gas recirculation line. A motor vehicle having at least one such configuration is also provided. | 02-23-2012 |
| 20110154820 | ENGINE EXHAUST MANIFOLD PRESSURE CONTROL OF INTAKE FLOW - A method for controlling charge flow in an internal combustion engine includes operating an engine having a VGT. The method includes determining a target and current charge flow and EGR flow. The method further includes determining an error term for the charge flow and the EGR flow, and determining an exhaust pressure feedback command in response to the error terms. The exhaust pressure feedback command is combined with an exhaust pressure feedforward command, and the VGT is controlled in response to the exhaust pressure feedback command. The method additionally includes determining the exhaust pressure feedback command in response to a current EGR valve position. The method further includes controlling an EGR flow rate with the EGR valve at relatively closed EGR valve positions, and controlling the EGR flow rate with exhaust pressure at relatively open EGR valve positions. | 06-30-2011 |
| 20120204559 | SUPERCHARGING SYSTEM FOR INTERNAL COMBUSTION ENGINE - A supercharging system comprising a pressure wave supercharger which supercharges an internal combustion engine by increasing a pressure of gas in a cell using a pressure wave of exhaust gas and discharging from an intake gas outlet port to an intake gas passage the gas pressurized further comprises a first motor which rotates a rotor, and a valve plate and a second motor capable of changing a position of the intake gas outlet port with respect to an exhaust gas inlet port. The motors are controlled so as to change a rotation number of the rotor and the position of the intake gas outlet port with respect to the exhaust gas inlet port based on a quantity of flow of exhaust gas to be recirculated to the intake gas passage. | 08-16-2012 |
| 20120055156 | EXHAUST GAS RECIRCULATION SYSTEM FOR A COMBUSTION ENGINE - An exhaust gas recirculation system for an internal combustion engine includes an exhaust gas duct, a suction duct, and an exhaust gas recirculation duct which branches off from the exhaust gas duct and which flows into the suction duct. An exhaust gas mass flow sensor is arranged downstream of a flow stabilization element in the exhaust gas recirculation duct. | 03-08-2012 |
| 20120017588 | Engine - An engine includes a variable geometry turbocharger, an EGR valve device, a hydraulic servo drive device that drives the variable geometry turbocharger, a hydraulic servo drive device that drives the EGR valve device, an electronic proportional control valve (EPC valve) that supplies pilot pressure oil to the hydraulic servo drive device, and an electronic proportional control valve (EPC valve) that supplies pilot pressure oil to the hydraulic servo drive device, the EPC valves being attached to the EGR valve device. | 01-26-2012 |
| 20120023934 | METHOD AND SYSTEM FOR A TURBOCHARGED ENGINE - Methods and systems are provided for a boosted engine having a split intake system coupled to a split exhaust system. Aircharges of differing composition, pressure, and temperature may be delivered to the engine through the split intake system at different points of an engine cycle. In this way, boost and EGR benefits may be extended. | 02-02-2012 |
| 20120023935 | METHOD AND SYSTEM FOR A TURBOCHARGED ENGINE - Methods and systems are provided for a boosted engine having a split intake system coupled to a split exhaust system. Aircharges of differing composition, pressure, and temperature may be delivered to the engine through the split intake system at different points of an engine cycle. In this way, boost and EGR benefits may be extended. | 02-02-2012 |
| 20120060499 | Internal combustion engine with an exhaust-gas recirculation and method for operating an internal combustion engine - An internal combustion engine has a high-pressure exhaust-gas recirculation line and a low-pressure exhaust-gas recirculation line with a low-pressure exhaust-gas recirculation valve. The low-pressure exhaust-gas recirculation line branches off from the exhaust-gas system downstream of a turbine of an exhaust-gas turbocharger and opens into a fresh-air system upstream of a compressor of the exhaust-gas turbocharger. An exhaust-gas flap is disposed in the exhaust-gas system downstream from where the low-pressure exhaust-gas recirculation line branches off from the exhaust-gas system. At least one pressure sensor is disposed in the low-pressure exhaust-gas recirculation line and configured such that the at least one pressure sensor determines a pressure difference in the low-pressure exhaust-gas recirculation line between a point upstream of the low-pressure exhaust-gas recirculation valve and a point downstream of the low-pressure exhaust-gas recirculation valve. A method for operating an internal combustion engine is also provided. | 03-15-2012 |
| 20120060497 | KNOCK-RESPONSIVE ADJUSTMENT OF AN EXTERNAL EGR MIXTURE - A method of adjusting an external exhaust gas recirculation mixture in response to engine knock of a spark-ignition turbocharged engine, and related products. | 03-15-2012 |
| 20120111001 | ENGINE ARRANGEMENT WITH AN IMPROVED EXHAUST HEAT RECOVERY ARRANGEMENT - An engine arrangement of the type including an internal combustion engine having an EGR line, wherein at least one turbine is located on an exhaust line, is provided. The arrangement includes a water vapor generating arrangement using exhaust gases energy to transform liquid water into water vapor. The water vapor is injected in the exhaust line upstream of the turbine. The EGR line is branched off the exhaust line upstream of the turbine and the water vapor generating arrangement includes at least one EGR/water heat exchanger for exchanging heat between the EGR line and the water to be vaporized. | 05-10-2012 |
| 20120111000 | CONTROL APPARATUS OF AN INTERNAL COMBUSTION ENGINE - The problem to be solved by the present invention is to provide a control apparatus of an internal combustion engine that can surely judge that an abnormality has occurred when a problem in drivability arises. The present invention is characterized by comprising: an outside EGR apparatus, including an exhaust gas recirculation passage that connects an exhaust passage and an intake passage of the internal combustion engine, and an EGR valve that can increase and decrease an outside EGR flow quantity that flows back into said intake passage from said exhaust passage through said exhaust gas recirculation passage by being adjusted in its opening angle; output value acquiring means that acquire an output value of the engine; and EGR abnormality judgment means that judge occurrence of abnormality in said outside EGR apparatus according to a predetermined criterion based on a difference between an output of the engine in which a first EGR flow quantity is flown back and an output of the engine in which a second EGR flow quantity is flown back. | 05-10-2012 |
| 20110094224 | METERING EXHAUST GAS RECIRCULATION SYSTEM FOR A TURBOCHARGED ENGINE HAVING A TURBOGENERATOR SYSTEM - An internal combustion engine having an engine block for internal combustion, a turbocharger for delivering pressurized intake air to the engine block, a turbogenerator for recovering heat energy from the exhaust gas downstream of the turbocharger to generate electricity, and an exhaust gas recirculation (EGR) system comprising an EGR-pump drawing exhaust gas from an EGR inlet located between the turbocharger and the turbogenerator, wherein the EGR-pump controllably delivers exhaust gas to an EGR mixer in the pressurized intake air stream at a location between the turbocharger and the engine block. An electronic control unit (ECU) is adapted to command the EGR-pump to deliver a desired EGR flow-rate to the engine block based on look-up tables and either open-loop and/or closed-loop control algorithms. | 04-28-2011 |
| 20110088393 | Turbocharger and Air Induction System Incorporating the Same and Method of Using the Same - A turbocharger having a turbine housing with an integral EGR conduit is disclosed. The turbine includes a turbine wheel attached to a turbine shaft and rotatably disposed in a turbine housing having a turbine volute conduit having a turbine inlet passage fluidly coupled to a turbine volute conduit having a turbine volute passage and a turbine volute inlet and an EGR conduit having an EGR passage, the EGR passage having an EGR conduit inlet, the EGR conduit inlet disposed on the turbine inlet conduit. The turbine inlet conduit is configured for fluid communication of a first portion of an exhaust gas flow received from an engine to the turbine wheel. The EGR conduit is configured for fluid communication of a second portion of the exhaust gas flow to an engine intake manifold. | 04-21-2011 |
| 20120117963 | Methods and Systems for Emission System Control - Methods and systems are provided for operating a turbocharged engine including a particulate filter positioned upstream of a turbocharger turbine, a catalyst positioned downstream of the turbine, and an EGR passage coupled between an engine exhaust and engine intake. In one example, the method comprises, diverting exhaust gas from downstream of the filter to the engine intake via the EGR passage, and adjusting an amount of diverted exhaust gas based on filter operating conditions. | 05-17-2012 |
| 20120124996 | Dual-Inlet Supercharger for EGR Flow Control - A supercharger compressor includes a plurality of rotors rotatably mounted in a housing, a first inlet for air, a second inlet for recirculated exhaust gas, and a flow separator. The flow separator is arranged interior the housing and configured to form a slideable seal with at least one rotor of the plurality of rotors, the slideable seal fluidically isolating the first inlet from the second inlet, at least in part, and retarding pressure equalization therebetween. | 05-24-2012 |
| 20120159949 | BOOSTING DEVICES WITH INTEGRAL FEATURES FOR RECIRCULATING EXHAUST GAS - According to one embodiment of the invention, a compressor housing includes a compressor inlet in fluid communication with a compressor volute configured to house a compressor wheel, the compressor inlet configured to provide a first air flow to the compressor wheel and a compressor outlet in fluid communication with the compressor volute, the compressor outlet configured to direct a compressed gas to an intake manifold. The compressor housing further includes an exhaust gas recirculation inlet port in fluid communication with the compressor volute, the exhaust gas recirculation inlet port being configured to combine an exhaust gas flow with the air flow to the compressor wheel. | 06-28-2012 |
| 20120159950 | BOOSTING DEVICES WITH INTEGRAL FEATURES FOR RECIRCULATING EXHAUST GAS - According to one embodiment of the invention, a turbine housing includes a turbine inlet in fluid communication with a turbine volute configured to house a turbine wheel, the turbine inlet configured to direct an exhaust gas flow from an engine to the turbine wheel. The turbine housing also includes a turbine outlet in fluid communication with the turbine volute, the turbine outlet configured to direct the exhaust gas flow to an exhaust gas conduit and a first exhaust gas recirculation supply port located on and in fluid communication with the turbine outlet, the first exhaust gas recirculation supply port being configured to direct a portion of the exhaust gas flow to an exhaust gas recirculation supply conduit. | 06-28-2012 |
| 20120247101 | Method and System for Providing Air to an Engine - Systems and methods for supplying air to an engine are disclosed. In one example, an air inlet throttle is at least partially closed in response to a change in engine torque request. In another example, the air inlet throttle is adjusted in conjunction with adjusting an engine throttle. The approach can reduce compressor noise and may reduce the possibility of compressor surge. | 10-04-2012 |
| 20100050634 | SYSTEM, METHOD, AND DEVICE FOR LOCOMOTIVE EXHAUST GAS RECIRCULATION COOLING AND CATALYST HEATING - A method of heating an engine exhaust gas of an engine, including flowing a first exhaust gas at a first temperature within and along internal flow channels of a catalyst brick, and flowing a second exhaust gas at a second, different, temperature around an exterior of the catalyst brick. Heat may be transferred between the gases and the catalyst brick to achieve various operations. | 03-04-2010 |
| 20120312012 | MULTISTAGE CHARGING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - In a multi-stage charging group for receiving an operating fluid of an internal combustion engine which includes a first and a second turbocharger with a first and, respectively, a second turbine arranged in a common support housing, a bypass guide structure is provided in the support housing for guiding the operating fluid around the first turbine, which guide structure is formed at least partially by the support housing and a housing section of the first turbine. | 12-13-2012 |
| 20120312013 | SYSTEM, METHOD, AND DEVICE FOR LOCOMOTIVE EXHAUST GAS RECIRCULATION COOLING AND CATALYST HEATING - A method of heating an engine exhaust gas of an engine, including flowing a first exhaust gas at a first temperature within and along internal flow channels of a catalyst brick, and flowing a second exhaust gas at a second, different, temperature around an exterior of the catalyst brick. Heat may be transferred between the gases and the catalyst brick to achieve various operations. | 12-13-2012 |
| 20100011765 | TURBOCHARGER - The present invention relates to a turbocharger ( | 01-21-2010 |
| 20120073288 | METHOD AND SYSTEM FOR TURBOCHARGING AN ENGINE - A method for improving operation of a turbocharged engine is presented. In one embodiment, the method may reduce engine emissions and improve engine efficiency during an engine start. | 03-29-2012 |
| 20120255299 | V ENGINE - The invention relates to a V engine ( | 10-11-2012 |
| 20120255298 | INTERNAL COMBUSTION ENGINE COMPRISING AN EXHAUST GAS RECIRCULATION SYSTEM - An internal combustion engine includes a plurality of cylinders, an air intake line and an exhaust line collecting exhaust gas. The engine also includes an EGR line for rerouting a part of the exhaust gas from the exhaust line towards the air intake line and at least a first turbocharger comprising a first turbine driven by the exhaust gas flowing towards the atmosphere, linked to a first compressor located on the air intake line. The engine further includes a variable geometry EGR turbine located on the EGR line, driven by the EGR gas flowing in the EGR line. Thus, thanks to the pressure reduction occurring in the turbine, the EGR gas temperature is lowered, and less cooling power from the engine cooling system is required to cool down the EGR. | 10-11-2012 |
| 20120317978 | Valve stop for engine with exhaust gas recirculation - A butterfly valve includes a body with a bore through which exhaust gas may flow and a valve member rotatably mounted within the bore for restricting flow through the bore. A stop extends into the bore to limit movement of the valve member and prevent the valve member from rotating to a closed position. The stop defines a restricted flow position at which the valve member is positioned between an open position and the closed position. An internal combustion engine utilizing the butterfly valve is also provided. | 12-20-2012 |
| 20120227399 | IN-FLOW AIR INJECTION HOUSING - An in-flow air injection housing configured to create suction for pulling a combustion gas through an EGR system. The housing includes an orifice that is configured to receive an inner ring. The inner ring includes an outer groove and a plurality of air jets. The housing further includes a supplemental gas inlet, a supply inlet, and a supply outlet. The supply inlet is configured to receive a supplemental gas that flows through the supplemental gas inlet. The supply outlet is positioned to deliver the supplemental gas received by the supply inlet to the outer groove. The supplemental gas may flow from the outer grove through annular air jets positioned along a side of the inner ring. The flow of supplemental gas through the air jets and into combustion gas(es) may provide momentum and/or friction that draws additional combustion gas through the housing. | 09-13-2012 |
| 20120260653 | Internal combustion engine with improved exhaust manifold - An internal combustion engine includes a plurality of combustion cylinders, at least one turbocharger, an air supply line, an exhaust gas line and an exhaust gas recirculation system. An exhaust manifold of the exhaust gas line may have both non-direction specific and modular pulse exhaust manifold elements. If the internal combustion engine has dual cylinder banks, an exhaust gas balance tube may extend between exhaust gas lines of the cylinder banks and be fluidly connected to an exhaust manifold between the ends thereof. | 10-18-2012 |
| 20120297768 | TURBOCHARGER - The present invention relates to a turbocharger ( | 11-29-2012 |
| 20120297767 | System and Method to Control an Electronically-Controlled Turbocharger - By providing an electrically-controlled turbocharger (ECT) on a compression-ignition (CI) engine, the engine can be provided a desired lambda and a desired EGR fraction over the range of operating conditions. When lambda in the exhaust is leaner than the desired lambda, electrical energy to the electric motor of the ECT is reduced to bring actual lambda to desired lambda. Analogously, when lambda in the exhaust is richer than the desired lambda, electrical energy to the ECT is increased. | 11-29-2012 |
| 20120297766 | GEAR SUBASSEMBLY AND EXHAUST GAS RECIRCULATION SYSTEM - A gear subassembly is for an exhaust gas recirculation (EGR) system including an EGR valve and a rotatable shaft provided for the EGR valve. The gear subassembly includes a gear and a cam. The gear is a part of reduction gears and is fastened to the rotatable shaft to rotate therearound. The cam is fastened to the gear and is a part of a link mechanism. The gear includes a metal shaft-fastening part used for fastening the gear to the rotatable shaft, and a metal cam-fastening part used for fastening the gear to the cam. The gear is formed by resin-molding with the shaft-fastening part and the cam-fastening part serving as insert parts. | 11-29-2012 |
| 20120272646 | LOW PRESSURE EXHAUST GAS RECIRCULATION APPARATUS - When a failure occurs in synchronizing mechanism, an intake air throttle valve is rotated in a direction that is opposite from a normal operational time valve closing direction, so that an arm of a driven plate contacts a throttle valve side stopper to stop rotation of the intake air throttle valve. Thereafter, when a low pressure EGR valve is rotated from a full close position to a full open position, an EGR valve side stopper contacts the arm of the driven plate to stop the low pressure EGR valve. A rotational angle of the EGR valve is sensed with a sensor and is outputted to an ECU. The ECU determines that a failure mode is set when a valve angle sensed with the sensor coincides with a rotation stop position of the EGR valve. | 11-01-2012 |
| 20110265473 | EXHAUST GAS RECIRCULATION SYSTEM - An exhaust gas recirculation (EGR) system for a vehicle is provided. The EGR system includes a turbine fluidly coupled downstream of an exhaust manifold and an EGR conduit including a first port coupled to an exhaust passage directly downstream of the turbine, an axis of the first port arrange at a non-perpendicular angle with respect to the rotation axis of the turbine and a second port coupled to an intake system. | 11-03-2011 |
| 20100199666 | SUPER-TURBOCHARGER HAVING A HIGH SPEED TRACTION DRIVE AND A CONTINUOUSLY VARIABLE TRANSMISSION - A super-turbocharger utilizing a high speed, fixed ratio traction drive that is coupled to a continuously variable transmission to allow for high speed operation is provided. A high speed traction drive is utilized to provide speed reduction from the high speed turbine shaft. A second traction drive provides infinitely variable speed ratios through a continuously variable transmission. Gas recirculation in a super-turbocharger is also disclosed. | 08-12-2010 |
| 20120137680 | TURBOCHARGER PROTECTING METHOD OF ENGINE PROVIDED WITH LP-EGR - A turbocharger protecting method of an engine provided with an LP-EGR including an engine, a turbocharger disposed downstream of the engine, an exhaust gas post processing device disposed downstream of the turbocharger, an LP-EGR (low pressure exhaust gas recirculation) valve disposed downstream of the exhaust gas post processing device, an LP-EGR cooler disposed downstream of the LP-EGR valve, and an air supply line connecting downstream of the LP-EGR cooler and a compressor of the turbocharger, the turbocharger protecting method includes predetermining compressor inlet limiting temperature, estimating compressor inlet temperature and comparing the estimated compressor inlet temperature and the predetermined compressor inlet limiting temperature, and lowering the compressor inlet temperature if the estimated compressor inlet temperature excesses the predetermined compressor inlet limiting temperature. | 06-07-2012 |
| 20120137679 | INTERNAL COMBUSTION ENGINE EGR APPARATUS - An EGR apparatus for an IC engine including an EGR duct connecting the exhaust duct of the engine at a point downstream of an aftertreatment device to the intake duct at a point upstream of the supercharging compressor, an EGR cooler and an EGR positive displacement compressor along the EGR duct. The EGR compressor is driven by an electric motor which is controlled by a model-based control module in response to an EGR flow rate request depending on operating parameters of IC engine. | 06-07-2012 |
| 20110146272 | DIESEL ENGINE FOR A MOTOR VEHICLE - A diesel engine is provided for a motor vehicle. The engine includes, but is not limited to a long route exhaust gas recirculating (LR-EGR) system, in which a Lean NO | 06-23-2011 |
| 20130019594 | METHOD AND SYSTEM FOR EXHAUST GAS RECIRCULATION - Methods and systems are provided for an engine including a first turbocharger having a first compressor and a second turbocharger having a second compressor. An EGR differential between the first compressor and the second compressor may be increased under a condensation condition, and decreased under a surge condition. The EGR differential may also be decreased when a compressor outlet temperature exceeds an outlet temperature threshold. | 01-24-2013 |
