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| Number | Title | Issue Date |
| 8418680 | Gas guide system for a combustion engine, a combustion engine and a method for operating the engine In a gas guide system, a combustion engine and a method for operating the engine comprising a gas supply arrangement for supplying gas to the engine, a gas discharge system including an exhaust gas treatment unit for releasing gas from the engine, the gas guide syst... | 04/16/2013 |
| 8408189 | Petrol engine having a low-pressure EGR circuit Internal combustion petrol engine comprising an engine block (2) connected to an intake circuit (3) including a compressor (6) and an exhaust circuit (4) including a turbine (13) which drives the compressor, the internal combustion... | 04/02/2013 |
| 8393314 | FLEX dual stage EGR cooling A circuit for cooling exhaust gas being recirculated through an EGR system (36) of an engine (10) from an exhaust system (20) successively through first and second heat exchangers (38, 40) to an intake system (16) for entrainment w... | 03/12/2013 |
| 8375926 | Moisture purging in an EGR system A two stage cooled EGR system for a turbocharged internal combustion engine with an intake air charge air cooler. The first EGR cooler is a liquid-to-air cooler and the second, low temperature EGR cooler, is an air-to-air cooler combining with the gas flow downstrea... | 02/19/2013 |
| 8371278 | High flow EGR system A high flow EGR system for an internal combustion engine having a pair of series connected EGR coolers and a water droplet condensation collector and reservoir connected to the gas flow. The reservoir feeds a pump which is actuated to inject the liquid to the engine... | 02/12/2013 |
| 8353275 | Dual throttle for improved tip-out stability in boosted engine system A method for providing intake air to an engine in a vehicle includes forming a mixture of fresh air and treated exhaust, and compressing the mixture upstream of a first throttle valve coupled to an intake manifold of the engine. The method further includes, during a... | 01/15/2013 |
| 8353274 | Exhaust gas recirculation system An exhaust gas recirculation system having at least one cooler with a housing and at least one valve with a pivotably actuated valve member on an inlet side is characterized in that an actuator for the valve is mounted to the housing of the cooler, which is connecte... | 01/15/2013 |
| 8336528 | EGR device An EGR device includes a first cooling passage that introduces a flowing medium discharged from an engine into a main radiator so that the flowing medium is cooled therein, and then returns the flowing medium to the engine, and a second cooling passage that introduc... | 12/25/2012 |
| 8291892 | Heat exchanger with cast housing and method of making the same A heat exchanger suitable for cooling exhaust gases and a method of making same are disclosed. The heat exchanger includes an outer casting member having first and second ends and forming a housing and a plurality of channel members forming alternating first and sec... | 10/23/2012 |
| 8276572 | Working gas circulation engine A combustion chamber to which a reactant and a working gas whose specific heat ratio is higher than that of air are supplied and in which the working gas can expand following a reaction of the reactant, a circulation path capable of resupplying the working gas into ... | 10/02/2012 |
| 8272371 | Device and method for neutralizing acidic condensate in a motor vehicle Disclosed is a device and a method for neutralizing an acidic condensate in an internal combustion engine with exhaust gas recirculation system, wherein the exhaust gas recirculation system has an exhaust gas recirculation cooler for cooling a hot exhaust gas stream... | 09/25/2012 |
| 8267069 | EMG temp signal model based on EGRC out temp for EGR system anti-fouling protection An EGR control method to prevent condensation within the EGR system uses a temperature sensor signal from an EGR cooler exhaust gas outlet to model or estimate exhaust manifold gas temperature upstream of the cooler. If the estimated exhaust manifold gas temperature... | 09/18/2012 |
| 8245701 | Coordination of HP and LP EGR A method for charging an intake manifold of an engine comprises adjusting an LP EGR flow rate and an uncooled HP EGR flow rate within first limits to maintain a target dilution level in the intake manifold at steady state. The method further comprises adjusting the ... | 08/21/2012 |
| 8240294 | Cooled EGR system for coolant heating during cold engine start Various systems and method for heating an engine in a vehicle during a cold start are described. In one example, thermal efficiency of the engine is improved by heating engine coolant via a high-pressure exhaust gas recirculation (HP-EGR) system. For example, after ... | 08/14/2012 |
| 8230843 | Cooler bypass to reduce condensate in a low-pressure EGR system Various systems and methods are described for an exhaust gas recirculation (EGR) system including an EGR cooler coupled to a turbocharged engine in a vehicle. One example method comprises, under selected operating conditions, controlling a mixture temperature of coo... | 07/31/2012 |
| 8225773 | Valve arrangement for an exhaust gas recirculation device The invention relates to a valve arrangement (2) for an exhaust gas recirculation device of an internal combustion engine, especially in a motor vehicle. Said valve arrangement (2) comprises a first valve (9) which is used to control a first gas... | 07/24/2012 |
| 8220442 | Vortex exhaust recovery system having improved muffler An exhaust recovery system for use with an internal combustion engine having an air intake device connected to an air/fuel mixing device. The system comprises an improved muffler having a vortex inducing filter mechanism inside the muffler chamber that facilitates s... | 07/17/2012 |
| 8186334 | 6-cycle engine with regenerator In an attempt to regenerate energy of exhaust gas by using a pressure regenerator secured to an exhaust port of a displacement type engine so as to realize the Atkinson's cycle, if the engine is a four-cycle engine, raising regenerative pressure may cause abnormal f... | 05/29/2012 |
| 8171918 | Exhaust gas recirculation device of internal combustion engine An exhaust gas recirculation device (50) of an internal combustion engine (1) includes an EGR passage (51) linking an exhaust passage (6) and an intake passage (3) of the internal combustion engine, an EGR valve (54) that bl... | 05/08/2012 |
| 8161949 | Exhaust gas recirculation cooler system An exhaust gas recirculation cooling system for an internal combustion engine that has an exhaust system is provided. The exhaust gas recirculation cooling system comprises a cooling fluid circuit, an exhaust gas recirculation cooler, a turbine, a condenser, and a c... | 04/24/2012 |
| 8146572 | Cooled exhaust gas recirculation system with cylinder-level control A cooled exhaust gas recirculation system includes one or more cylinders, each with several valves, an intake manifold, an exhaust manifold and a cooled exhaust gas recirculation chamber. The cooled exhaust gas recirculation chamber removes a portion of the exhaust ... | 04/03/2012 |
| 8113184 | EGR valve device An EGR valve device includes a valve housing of which inside exhaust gas passes through, a poppet valve as a valve body accommodated in the valve housing, and a hydraulic servo actuator for driving the poppet valve to be opened and closed. The hydraulic servo actuat... | 02/14/2012 |
| 8104456 | Method and arrangement for exhaust-gas recirculation in an internal combustion engine A system and method are disclosed for providing exhaust-gas recirculation in an internal combustion engine that has an exhaust-gas turbocharger. The exhaust gas to be recirculated is collected from the exhaust line downstream of a turbine of the turbocharger, passed... | 01/31/2012 |
| 8100115 | Method for operating a spark ignition engine In a method for operating a spark ignition engine, wherein the inlet valves of the spark ignition engine are closed very early or very late, and a combustion air flow which is supplied to the spark ignition engine is compressed by means of a charger, and, under full... | 01/24/2012 |
| 8091535 | 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 ... | 01/10/2012 |
| 8065991 | Working gas circulation engine A working gas circulation engine includes a combustion chamber that can expand a working gas, which has a specific heat ratio higher than that of the air, with the combustion between an oxidizing agent and a fuel; a circulation path that can allow the working gas to... | 11/29/2011 |
| 8065992 | Valve arrangement for an exhaust gas recirculation device A valve arrangement is provided for an exhaust gas recirculation device of an internal-combustion engine. The engine has at least one inlet and at least one outlet. The recirculation device includes an inlet on the internal-combustion engine outlet side, an outlet o... | 11/29/2011 |
| 8061334 | Device for recycling and cooling exhaust gas for an internal combustion engine A device for recycling and cooling exhaust gas of an internal combustion engine is disclosed, comprising a first exhaust-gas heat exchanger and a second exhaust-gas heat exchanger, wherein the first and second exhaust gas heat exchangers are combined in a structural... | 11/22/2011 |
| 8061335 | Internal combustion engine comprising an exhaust gas recirculation system This internal combustion engine includes a plurality of cylinders, an air intake line, and an exhaust line. The internal combustion engine also includes a turbocharging system having at least one compressor stage and intake air cooling arrangement having at least on... | 11/22/2011 |
| 8056544 | Exhaust gas recirculation (EGR) system A method for operating an internal combustion engine Exhaust Gas Recirculation (EGR) system that includes producing an EGR valve position signal to decrease the amount of exhaust gas passed to the EGR cooler when a processor determines the EGR cooler efficiency is l... | 11/15/2011 |
| 8056545 | Integrated cover and exhaust gas recirculation cooler for internal combustion engine An integrated engine cover and exhaust gas recirculation cooler for an internal combustion engine includes a cover for enclosing a portion of an engine and an EGR cooler having a housing formed as one piece with the cover. The EGR cooler includes at least one cooler... | 11/15/2011 |
| 8051841 | Charging fluid intake module and internal combustion engine A charging fluid suctions module is provided for an internal combustion engine, comprising a housing forming a flow path for a gaseous charging fluid, particularly air, a gas, and/or an air/gas mixture. Whereby, a heat exchanger is disposed in the housing for the ga... | 11/08/2011 |
| 8051842 | Internal combustion engine with an exhaust-gas turbocharger and a charge-air cooler and method for operating an internal combustion engine An internal combustion engine includes an intake manifold in a fresh air system. The intake manifold opens into inlet ports of a cylinder head. An exhaust-gas turbocharger has a turbine and a compressor, which is driven by the turbine. The turbine is disposed in the... | 11/08/2011 |
| 8047184 | EGR cooler bypass strategy A system and method for controlling an engine control an EGR cooler bypass valve to divert at least a portion of EGR flow around an EGR cooler when operating under cooler fouling/plugging conditions, such as during idle, off-idle, exhaust system warm up and DPF rege... | 11/01/2011 |
| 8042527 | Coordination of HP and LP EGR A method for charging an intake manifold of an engine comprises adjusting an LP EGR flow rate and an uncooled HP EGR flow rate within first limits to maintain a target dilution level in the intake manifold at steady-state. The method further comprises adjusting the ... | 10/25/2011 |
| 8025045 | Cooler arrangement for a motor vehicle A cooler device for a motor vehicle including a charge air cooler with a first cooler element, an EGR cooler with a second cooler element arranged substantially in plane with the first cooler element is disclosed. A screening device regulates air flow through the co... | 09/27/2011 |
| 8020538 | Cooled EGR system for coolant heating during cold engine start Various systems and method for heating an engine in a vehicle during a cold start are described. In one example, thermal efficiency of the engine is improved by heating engine coolant via a high-pressure exhaust gas recirculation (HP-EGR) system. For example, after ... | 09/20/2011 |
| 7987836 | Multi-cooler EGR cooling A system is described for coordination of Exhaust Gas Recirculation (EGR) flow through and around a plurality of EGR coolers differently depending on operating conditions. ... | 08/02/2011 |
| 7975676 | Cooling arrangement A cooler arrangement of a vehicle includes a charge air cooler which itself includes at least one pipeline for guiding compressed air during cooling and a first tank for receiving the cooled compressed air from the first pipeline, and an EGR cooler which includes at... | 07/12/2011 |
| 7971577 | EGR cooler defouling A method to dislodge an adherent residue in an EGR cooler, the EGR cooler installed in an engine. The method comprises switchably flowing the exhaust gas through the exhaust-gas recirculation cooler according to a normal-calibration control mode when a temperature o... | 07/05/2011 |
