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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7971576 | Internal combustion engine and method for operating an internal combustion engine The invention relates to a method for operating an internal combustion engine, wherein exhaust gas produced by the internal combustion engine is returned to the internal combustion engine via an exhaust gas recirculation device, which comprises at least two cooling ... | 07/05/2011 |
| 7958873 | Open loop Brayton cycle for EGR cooling A system for reducing the temperature of waste heat from a waste heat source of a vehicle engine, including an open loop Brayton cycle having a cooler, a compressor, a turbine, and a shaft coupling the compressor to the turbine. Waste heat and compressed air from th... | 06/14/2011 |
| 7950376 | Device for distributing recirculated gases, device for cooling recirculated gases and method of recirculating exhaust gases A device for distributing recirculated gases to a component of an exhaust gas recirculation system. The device includes an inlet and an outlet for recirculated gases, an inlet port and an outlet port to the component, and a mechanism to reverse the stream of recircu... | 05/31/2011 |
| 7942138 | Outboard motor with exhaust gas recirculation cooling An outboard motor is provided with an exhaust gas recirculation (EGR) system that provides a heat exchanger which reduces the temperature of the exhaust gas prior to introducing the exhaust gas to the cylinders of the engine. The heat exchanger can be integral to th... | 05/17/2011 |
| 7942137 | Heat exchanger The invention relates to a heat exchanger with at least one duct, which can be flowed through by flowing medium from an inlet cross-section to an outlet cross-section, has an inside and outside, and which comprises, on the inside, structural elements for increasing ... | 05/17/2011 |
| 7938105 | 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 flo... | 05/10/2011 |
| 7931013 | Three-pass heat exchanger for an EGR system The present invention relates to a three-pass heat exchanger for an EGR system, comprising a casing housing at least one cooling chamber for gas circulating through a plurality of pipes and heads on its ends coupled to the gas inlet pipe coming from the exhaust mani... | 04/26/2011 |
| 7926471 | Heat exchanger with variable turbulence generators An exhaust gas recirculation cooler may include a housing and a first wall. The housing may include an exhaust gas region, a coolant region, an exhaust gas inlet, and an exhaust gas outlet. The first wall may be fixed within the housing and may separate the exhaust ... | 04/19/2011 |
| 7921829 | Engine cooling medium circulation device A cooling water circulation system (100) is configured so that cooling water is delivered from a water pump (113) toward a cylinder head (111) via a pump delivery pipe (114). Further, the system (100) is configured so that an engin... | 04/12/2011 |
| 7921828 | Modulating flow through an exhaust gas recirculation cooler to maintain gas flow velocities conducive to reducing deposit build-ups A heat exchanger of motor vehicle processes a gas flow including combustion exhaust gas. Combustion by-product deposit build-up within the heat exchanger is reduced by maintaining a minimum gas flow velocity within the heat exchanger by reducing heat exchanger total... | 04/12/2011 |
| 7918216 | Exhaust gas recirculation device The invention relates to an exhaust gas recirculation device (5) for an internal combustion engine (1), especially in a motor vehicle, said device comprising an exhaust gas recirculation line (6) and an exhaust gas cooler (7) which is bui... | 04/05/2011 |
| 7900610 | Switching valve for EGR cooler A switching valve comprises a housing, a gas inflow chamber, a first passage adjacent to the inflow chamber through a first partition wall and communicating with the EGR cooler, a first communication hole providing communication between the inflow chamber and the fi... | 03/08/2011 |
| 7900609 | Dual exhaust gas recirculation valve An exhaust gas recirculation (EGR) system communicates hot exhaust gases from an exhaust manifold to an intake manifold through a first passage and a second passage parallel with the first passage. A first EGR valve assembly controls exhaust gas flow through the fir... | 03/08/2011 |
| 7886726 | 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 which ... | 02/15/2011 |
| 7882827 | Heat exchanger for a combustion engine Disclosed is a heat exchanger for a combustion engine, comprising a first connection zone (1, 102) for delivering a fluid that is to be cooled, at least some of said fluid being composed of exhaust gas of the combustion engine, a second connection zone (3,... | 02/08/2011 |
| 7866305 | Flow channel, heat exchanger, exhaust gas recirculation system, charge air supply system, use of a heat exchanger A flow channel for a heat exchanger for exchanging heat between a first fluid and a second fluid, the flow channel having, perpendicular to a flow channel axis, a cross-section that can be traversed, the flow channel providing for an improved transfer of heat with a... | 01/11/2011 |
| 7845339 | Exhaust gas recirculation cooler coolant plumbing configuration A cooling system for an engine is disclosed. In a first embodiment, the cooling system may comprise a heat exchanger, a pump coupled to the heat exchanger, an EGR cooler coupled to the pump, and a first valve coupled to the EGR cooler and the heat exchanger. When th... | 12/07/2010 |
