Entries |
Document | Title | Date |
20080245348 | Method for Recirculating a Partial Exhaust Gas Flow to an Internal Combustion Engine of a Motor Vehicle - In the present method, a partial flow is guided through a partial flow line connected downstream of an exhaust gas outlet of an internal combustion engine, and is immediately thereafter supplied to an internal combustion engine either via a first valve, a bypass line which is connected directly downstream and a recirculation line. Alternatively, the partial exhaust gas flow can be supplied to the internal combustion engine via a second valve, a radiator which is connected directly downstream and a recirculation line. The first valve and the second valve are opened or closed as a function of the exhaust gas conditions, this being monitored by a sensor. A device for carrying out the method is also disclosed. | 10-09-2008 |
20080257317 | Internal combustion engine with cooling system and exhaust gas recirculation system - In an internal combustion engine with a cooling system and an exhaust gas recirculation (EGR) system including an EGR heat exchanger with a coolant inlet opening connected to a coolant outlet opening of the engine for receiving coolant therefrom and the engine including a coolant collecting rail mounted directly to the engine and having a coolant inlet opening connected to the EGR heat exchanger and at least one other coolant inlet opening in communication directly with at least one other coolant outlet opening of the engine. | 10-23-2008 |
20080271721 | Arrangement and a Method for Recirculation of Exhaust Gases of an Internal Combustion Engine - An arrangement and a method for recirculation of exhaust gases of a combustion engine. A return line extends from an exhaust line for engine exhaust gases to an inlet line for air to the combustion engine. An EGR valve in the exhaust line regulates the amount of exhaust gases led through the return line. A control unit controls the EGR valve. An EGR cooler cools the exhaust gases in the return line by means of a cooling system of the combustion engine. The control unit decides whether the coolant in the cooling system is at a too low a temperature and, if it is, controls the EGR valve so that a larger amount of exhaust gases is led through the return line with extra heating. | 11-06-2008 |
20080271722 | Heat Exchanger for a Combustion Engine - Disclosed is a heat exchanger for a combustion engine, comprising a first connection zone ( | 11-06-2008 |
20080289611 | Exhaust gas recirculation cooler bypass cartridge - A bypass valve cartridge ( | 11-27-2008 |
20090007891 | 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 recirculated gases flowing through the component. A device for cooling recirculated exhaust gases is equipped with a mechanism to reverse the stream of recirculated gases inside the exchanger. A method of recirculating exhaust gases includes cleaning the EGR system, which is triggered by an electronic unit, and which includes reversing the stream of EGR gases flowing through an EGR cooling device. | 01-08-2009 |
20090013978 | Integrated Charge Air and Egr Valve - An engine assembly ( | 01-15-2009 |
20090020106 | EXHAUST GAS RECIRCULATION SYSTEM - An exhaust gas recirculation system having an exhaust line connected to an exhaust manifold of an engine; an intake line connected to an intake manifold of the engine; and an EGR line that intercommunicates the exhaust line and the intake line, in which a part of exhaust gas exhausted from the exhaust line is delivered to the intake line via the EGR line to be recirculated in the engine, is provided with a liquid cooling heat exchanger made of a corrosion-resistant material at downstream of an intersection with the EGR line in the intake line. | 01-22-2009 |
20090025698 | Internal combustion engine and method for operating an internal combustion engine - The invention relates to a method for operating an internal combustion engine, in which the exhaust gas generated by the internal combustion engine is returned to the internal combustion engine by means of an exhaust gas recirculation device having at least two cooling devices which are each associated with a bypass, the exhaust gas being cooled in the exhaust gas recirculation device as a function of the load state of the internal combustion engine. The operation of the internal combustion engine is divided into at least four load states, and as a function of the instantaneous load state the exhaust gas is returned to the internal combustion engine via a flow path in the exhaust gas recirculation device specifically assigned to this load state. The invention further relates to an internal combustion engine having an exhaust gas recirculation device. | 01-29-2009 |
20090032000 | Hydrated EGR system, method and apparatus for reducing harmful exhaust emissions and improving fuel economy - A hydrated EGR system, method and apparatus for a vehicle, in which heat from an exhaust pipe is used to heat an aqueous fluid solution in a water tank. A portion of the hot exhaust gas is diverted from the main exhaust flow, and the diverted portion is bubbled through the heated aqueous fluid solution to form a hydrated EGR mixture containing water vapor. The hydrated EGR mixture is then fed back to an intake portion of the engine, is mixed with an incoming fuel/air mixture, and is burned with the fuel air mixture inside the engine. The use of the hydrated EGR mixture, including heated water vapor, as part of the intake charge simultaneously reduces harmful exhaust emissions, improves engine performance, and improves fuel economy of the vehicle. | 02-05-2009 |
20090038593 | Method and device for operating an internal combustion engine - A method and a device for operating an internal combustion engine having at least one mass flow line and a cooling device for cooling the mass flow in the mass flow line, as well as a bypass, having a bypass valve, that bypasses the cooling device. When the bypass valve is opened, the mass flow is conducted at least partly through the bypass. When the bypass valve is closed, the mass flow is conducted through the cooling device. Downstream from the cooling device and from the bypass in the mass flow line, a temperature of the mass flow in the mass flow line is determined. In at least one operating state of the internal combustion engine, a first temporal temperature gradient is determined with closed bypass valve. In the at least one operating state of the internal combustion engine, a second temporal temperature gradient is determined with closed position of the bypass valve. An error is recognized as a function of a deviation between the first temporal temperature gradient and the second temporal temperature gradient. | 02-12-2009 |
20090044789 | 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 unit and form a module. | 02-19-2009 |
20090044790 | METHOD FOR REINTRODUCING EXHAUST GAS TO THE INTAKE OF AN INTERNAL-COMBUSTION ENGINE AND ENGINE USING SAME - The present invention relates to a method for reintroducing exhaust gas to the intake of an internal-combustion engine wherein, during the engine exhaust phase, part of the exhaust gas contained in combustion chamber ( | 02-19-2009 |
20090056682 | EGR cooler bypass switching system - An EGR cooler bypass switching system integrally comprises an EGR cooler for cooling EGR gas and a switching valve for switching between introduction and non-introduction of the EGR gas with respect to the EGR cooler. The system further comprises a cooler core through which the EGR gas introduced in the EGR cooler passes; a cooler case housing the cooler core; a cooling water inlet pipe through which cooling water flows in the system; a cooling water outlet pipe which is provided in the cooler case and through which the cooling water flows out of the system; an in-cooler cooling water passage formed in the cooler case to allow the cooling water flowing therein through the cooling water inlet pipe to flow around an outer periphery of the cooler core; and an in-valve cooling water passage formed in a housing of the switching valve to allow the cooling water flowing therein from the cooling water inlet pipe to flow through for cooling the switching valve. The in-cooler cooling water passage and the in-valve cooling water passage communicate with each other at a mating face between the EGR cooler and the switching valve. | 03-05-2009 |
20090090336 | INTERNAL COMBUSTION ENGINE AND EGR HEAT EXCHANGER FOR IT - Internal combustion engine wherein a cooling medium inlet of an EGR (Exhaust Gas Recirculation) heat exchanger is fluidly connected to a turbine outlet of a turbocharger so as to use the exhaust gas outputted by the turbine as a coolant. | 04-09-2009 |
20090101122 | 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. | 04-23-2009 |
20090120417 | Exhaust Gas Re-Circulation Apparatus For Internal Combustion Engine - In an exhaust gas re-circulation apparatus for an internal combustion engine ( | 05-14-2009 |
20090120418 | Internal-Combustion Engine Having a Cooled Exhaust Gas Recirculation System as Well as an Exhaust Gas Manifold - An internal-combustion engine contains at least one piston/cylinder unit containing a combustion chamber, having an intake path leading into the combustion chamber, an exhaust gas path leading out of the combustion chamber, and having an exhaust gas manifold. An exhaust gas recirculation path leads from the exhaust gas manifold into the intake path. A cooling device is provided for cooling the recirculated exhaust gas, wherein the cooling device cools the exhaust gas manifold, and the exhaust gas recirculation path branches off the cooled exhaust gas manifold. | 05-14-2009 |
20090126706 | Exhaust Gas Recirculation Device for Engine - There is provided an exhaust gas recirculation device for an engine, which is capable of reducing the emission of NOx and preventing engine overheat when an engine is operated at low to normal high loads. An intake passage ( | 05-21-2009 |
20090139500 | EXHAUST GAS RECIRCULATION SYSTEM - An exhaust gas recirculation system for reducing emissions which includes an exhaust portion having an outlet housing for collecting exhaust gas from an exhaust manifold of an internal combustion engine. The system also includes an intake portion having an inlet housing for introducing air into an intake manifold of an engine. The system also includes a fluid conduit for transporting exhaust gases from the exhaust portion to the intake portion. The conduit includes a first end and a second end. The first end is connected to the outlet housing with a slip joint and the second end is connected to the inlet housing with a slip joint, without the need for intermediate bracing. The system includes a plurality of sealing members for sealing the system and allowing for thermal expansion. The sealing members connect the first end to the outlet housing and connect the second end to the inlet housing. | 06-04-2009 |
20090139501 | Exhaust-Gas Recirculation in an Air-Cooled Internal Combustion Engine - An internal combustion engine includes a crankcase and a cylinder head which covers a cylinder of the crankcase and in which a fresh-gas channel and an exhaust-gas channel are made which open on a cylinder-head longitudinal side and are connected to in each case a fresh-gas line and an exhaust-gas collection line, and wherein there is an exhaust-gas recirculation system, including an exhaust-gas recirculation line and a control valve. An internal combustion engine having an exhaust-gas recirculation system is provided, in which the exhaust-gas recirculation system remains uninfluenced by the exhaust-gas collection line which is hot during operation. This is achieved in that the exhaust-gas recirculation system is arranged on that cylinder-head side which lies opposite the fresh-gas line and the exhaust-gas collection line. This arrangement away from the exhaust-gas collection line which is substantially hotter than other components during operation has the consequence of a direct reduction of the temperature of the recirculated exhaust-gas amount, without further special cooling measures being provided. | 06-04-2009 |
20090139502 | EXHAUST GAS RECIRCULATION SYSTEM TECHNICAL FIELD - 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 connected to the valve via at least one lever and at least one connection member such as a coupling rod, a ball-and-socket joint being provided between at least one lever and at least one connection member such as a coupling rod. | 06-04-2009 |
20090173319 | 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 load operation, the inlet valves are closed either early or late to avoid knocking of the engine, a partial flow of re-circulated exhaust gas is supplied to the combustion air flow supplied to the engine also during full load engine operation. | 07-09-2009 |
20090188475 | EGR DEVICE - An EGR device comprising an EGR passage | 07-30-2009 |
20090188476 | WORKING-GAS-CIRCULATION-TYPE ENGINE - In an engine | 07-30-2009 |
20090188477 | EXHAUST GAS RECIRCULATION DEVICE - The invention relates to an exhaust gas recirculation device ( | 07-30-2009 |
20090250041 | Device for purifying exhaust gas of a diesel engine - A device for purifying exhaust gas of a diesel engine is equipped with a continuously regenerating diesel particulate filter (DPF) that uses a catalyst. A second continuously regenerating DPF of a small capacity is disposed in a by-path that by-passes the exhaust gas passage of the diesel engine equipped with the continuously regenerating DPF. The particulate matter (PM) is trapped by the second continuously regenerating DPF in the region of low exhaust gas temperatures. A homogeneous charge compression ignition is executed by advancing the timing for injecting the fuel into the cylinders to reduce the formation of PM. Therefore, the PM can be trapped to a sufficient degree despite the second continuously regenerating DPF has a small capacity. To suppress the formation of NOx, further, the cooled exhaust gas is recirculated into the cylinders and, besides, a urea-added SCR catalyst is disposed in the exhaust gas passage to reduce and decompose NOx in the exhaust gas to further reduce NOx. | 10-08-2009 |
20090260604 | 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 manifold and to the gas outlet pipe connected to the intake manifold of the engine, which is configured as a three-pass heat exchanger, i.e. with three differentiated areas for gas circulation from the inlet pipe to the outlet pipe, the inlet pipe and the outlet pipe being located at opposite ends of the exchanger. The exchanger can include a bypass valve and two cooling chambers at different temperatures. | 10-22-2009 |
20090260605 | STAGED ARRANGEMENT OF EGR COOLERS TO OPTIMIZE PERFORMANCE - A compression ignition engine comprising at least one combustion chamber, an air intake system, a fuel system, an exhaust system and an exhaust gas recirculation system. The air intake system conveys air to the chamber. The exhaust system conveys exhaust gases from the combustion chamber. The exhaust gas recirculation system is capable of recirculating a portion of the exhaust gases into air intake system. The exhaust gas recirculation system comprises a cooler package and a valve. The valve controls the amount of air flow through the cooler package. The cooler package includes a first portion, a second portion and a control valve. The control valve of the cooler package is configured to control whether the air that flows through the cooler package flows only through one of the first or the second portion or through both of the first portion and the second portion in parallel. | 10-22-2009 |
20090277428 | LOCOMOTIVE EXHAUST GAS RECIRCULATION COOLING - A method of operating an engine having exhaust gas recirculation from an exhaust manifold of the engine to an intake manifold of the engine, the engine in a locomotive or other vehicle car body, the engine further having an intake system turbocharger with an air-cooled intercooler, the method including cooling the exhaust gas recirculation via a first airflow generated by car body motion, cooling compressed engine induction air in the air-cooled intercooler via a second airflow, and cooling the exhaust gas recirculation via the second airflow. | 11-12-2009 |
20090277429 | SYSTEM, KIT, AND METHOD FOR LOCOMOTIVE EXHAUST GAS RECIRCULATION COOLING - A system, kit, and service method for exhaust gas recirculation cooling are described. In one example, a removable cooling system for an engine, the engine in a vehicle car body, the system comprising: a removable package including a first exhaust gas recirculation cooler, a second exhaust gas recirculation cooler, and a third exhaust gas recirculation cooler, the first, second, and third coolers coupled together in series, where the removable package is located at a top of the vehicle car body and where the removable package is removably coupled to the vehicle as a unit. | 11-12-2009 |
20090277430 | 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 the compressor flow through the cooler, thereby transferring heat from the waste heat to the compressed air and lowering the temperature of the waste heat. The heated and compressed air is expanded across the turbine, to cause rotation of the shaft, thereby powering rotation of the compressor. Excess power beyond that necessary to drive the compressor may be drawn off through a generator which has its rotor mounted on the same shaft as the compressor and turbine. | 11-12-2009 |
20090277431 | 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. | 11-12-2009 |
20090308363 | EXHAUST GAS RECIRCULATION DEVICE AND VEHICLE PROVIDED WITH THE SAME - An exhaust gas recirculation device for an internal combustion engine, a controllable exhaust gas recirculation valve for controlling an exhaust gas flow of the internal combustion engine, an exhaust gas cooler for cooling the exhaust gas flow, and a bypass device which has a bypass pipe arranged parallel with the exhaust gas cooler, by means of which pipe the exhaust gas flow can be fed at least partially past the exhaust gas cooler, and which has a controllable bypass switch which is arranged inside a valve housing of the exhaust gas recirculation valve. The invention also relates to a vehicle. | 12-17-2009 |
20090314265 | 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 gas region from the coolant region. The first wall may include a first region facing the exhaust gas region and a first tab having a fixed end coupled to the first region and a free end generally opposite the fixed end. The free end may be displaceable between first and second positions based on an operating temperature of the exhaust gas. The free end may be displaced in a direction generally perpendicular to the first region when in the second position. | 12-24-2009 |
20090314266 | EGR device - An EGR device includes a first cooling passage that introduces a flowing medium discharged from an engine | 12-24-2009 |
20090320810 | INTERNAL COMBUSTION ENGINE SYSTEM, CONTROL METHOD OF INTERNAL COMBUSTION ENGINE SYSTEM, AND VEHICLE - Even under satisfaction of an EGR condition during operation of an engine, when it is determined that the cooling power of a cooling system is less than a preset reference power, based on a cooling water temperature and an outside air temperature, an EGR valve is controlled to prohibit circulation of exhaust into a gas inlet line. The reference power is set as a criterion of assuring a minimum required power for cooling down the engine even when the EGR is performed during the operation of the engine. This arrangement effectively prevents a decrease in cooling power of the cooling system. When it is determined that the cooling power of the cooling system is not less than the preset reference power, the EGR valve is controlled to allow circulation of the exhaust into the gas inlet line with a target EGR amount calculated from an intake air amount. This arrangement ensures the appropriate operation of the engine. | 12-31-2009 |
20100037872 | PREVENTING EGR SYSTEM SOOT CONTAMINATION - A diesel engine system is provided with an exhaust passage having a diesel particulate filter disposed in the passage. An exhaust gas recirculation passage is connected to the exhaust passage at a downstream location of the diesel particulate filter and in communication with the air intake passage. By locating the connection to the exhaust passage at a location downstream from the diesel particulate filter, the exhaust gas recirculation passage and the exhaust gas recirculation cooler disposed therein are isolated from soot contamination. | 02-18-2010 |
20100051001 | 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 less than the predetermined level and producing an EGR coolant valve position signal to decrease the amount of coolant passed to the EGR cooler when such processor determines the EGR cooler efficiency is less than the predetermined level. The processor produced EGR valve and the EGR coolant valve position signals result in regeneration within the cooler, returning the effectiveness of the cooler to a near “clean” condition. | 03-04-2010 |
20100071675 | 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 comprises a channel cover provided with a space surrounded by an inner side of the channel cover; a plurality of partitions that are arranged on the inner side of the channel cover in the space. The flow channel having, perpendicular to a flow channel axis, a cross-section that can be traversed and embodied for guiding the first fluid in the inner chamber. Thereby an improved transfer of heat is ensured with a more acceptable drop of pressure and a reduced risk of blocking. As a result, a hydraulic diameter in the region of between 1.5 mm and 6 mm, defined as the quadruple of the ratio between the surface of the cross-section that is traversed and the perimeter that can be moistened by the fluid. The invention also relates to a heat exchanger comprising a block having a plurality of flow channels of said type, through which the first fluid flows and fluidically connected by a fluid connection. The invention further relates to a charge-air system, an exhaust gas recycling system and to a use of the heat exchanger. | 03-25-2010 |
20100089370 | EXHAUST GAS RECIRCULATION SYSTEM - An actuator includes an electric motor and a drive force transmitting mechanism. The drive force transmitting mechanism includes a rotary gear and a rotary cam. The rotary gear transmits a drive force of the electric motor to an EGR valve to drive the same. The rotary cam transmits the drive force of the electric motor to a mode change valve to drive the same. The rotary cam is releasably linkable to the rotary gear to receive the drive force of the electric motor through the rotary gear. | 04-15-2010 |
20100095941 | 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 one charge air cooler located upstream from the intake manifold. The internal combustion engine further includes an exhaust gas recirculation (EGR) line rerouting a portion of the engine's exhaust gas into the air intake line at a point located upstream from the at least one charge air cooler. This engine therefore uses an heat exchanger to cool the EGR gas. Thus, EGR gas mixed with intake air flows through at least one change air cooler before entering the engine cylinders. The efficiency of this cooler—generally of the air/water type—makes it possible to significantly decrease the EGR gas temperature before it enters the cylinders. Less cooling power from the engine cooling system is required to cool down the EGR gas as fresh intake air is used as a cooling medium in the heat exchanger. | 04-22-2010 |
20100101545 | 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. | 04-29-2010 |
20100108041 | VALVE ARRANGEMENT FOR AN EXHAUST GAS RECIRCULATION DEVICE - The invention relates to a valve arrangement ( | 05-06-2010 |
20100108042 | HEAT EXCHANGER, METHOD OF MANUFACTURING THE SAME, AND EGR SYSTEM - The present invention relates to a heat exchanger including a partitioning plate and flow channels of at least two systems which are partitioned by the partitioning plate, in which the partitioning plate is made of a clad sheet having a base material made of stainless steel or a nickel-based alloy, and a clad layer having brazing properties and corrosion resistance to a corrosive fluid, an entire surface of the base material which is exposed to the flow channel of at least one system being coated by the clad layer. According to the present invention, the heat exchanger, in which the corrosive fluid flows, can be reduced in size, and the performance thereof can be enhanced. Furthermore, it is possible to simplify the manufacturing process of the heat exchanger. | 05-06-2010 |
20100126478 | 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 first passage, a gas outflow passage, a second passage communicating with the outflow passage and adjacent to the inflow chamber through the second partition wall and communicating with the EGR cooler, a second communication hole formed in the second partition wall and providing communication between the inflow chamber and the second passage, and a third partition wall dividing the first passage from the second passage. The first to third partition walls are continuous at a joined portion in a Y-shaped cross section. A valve element is placed to be swingable about a point near the joined portion between the first and second partition walls. The first and second partition walls are slanted with respect to a mold-removing direction to form the inflow chamber and the third partition wall is parallel to a mold-removing direction to form the first and second passages. | 05-27-2010 |
20100139631 | 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 the transfer of heat. The invention provides that the structural elements ( | 06-10-2010 |
20100147272 | 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 the first valve is in a first position, the first valve directs a coolant to the heat exchanger and when the first valve is in a second position, the heat exchanger is bypassed and coolant flows directly to the pump. It is an advantage for a cooling system to utilize a valve to maximize the rate a coolant flows throughout the system when the valve is in an open position and also to warm up an engine when the valve is in a closed position. | 06-17-2010 |
20100154758 | TEMPERATURE CONTROLLED VENTURI FOR USE WITH AN EGR SYSTEM IN AN INTERNAL COMBUSTION ENGINE - An EGR venturi for use in an EGR system of an IC engine includes a body defining a converging inlet section, a throat, and an interior liquid heat exchange chamber adjacent to the throat. | 06-24-2010 |
20100170482 | 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 section located within the housing and EGR and bypass valves for controlling the flow of exhaust gases either though the cooler or around the cooler. | 07-08-2010 |
20100170483 | FILM RESISTOR IN AN EXHAUST-GAS PIPE - The invention relates to the arrangement of a film resistor (chip) in an exhaust-gas pipe or exhaust-gas recirculation pipe, wherein the film resistor is fixed in a carrier, which is sealed against a shield or a housing, wherein this shield or housing is connected tightly to the exhaust-gas pipe or exhaust-gas recirculation pipe, wherein the carrier and the shield or the housing are sealed against each other spaced apart from the exhaust-gas pipe or exhaust-gas recirculation pipe radially outside of this pipe. | 07-08-2010 |
20100199957 | HIGH-PRESSURE EGR APPARATUS - An EGR control valve is driven by an actuator so as to control EGR amount by changing its opening degree. An EGR cooling device is provided in an EGR passage for cooling down EGR gas. A bypass passage is provided to the EGR passage, so that EGR gas may bypass the EGR cooling device. A switching valve is provided in the EGR passage for switching EGR mode from a hot EGR mode in which the EGR gas flows through the bypass passage to a cold EGR mode in which the EGR gas flows through the EGR cooling device, or vice versa. A converting mechanism is provided between the EGR control valve and the switching valve, so that the switching valve is driven by the actuator from its hot to cold switching position (or vice versa) when the EGR control valve is driven by the same actuator in a small angular range. | 08-12-2010 |
20100206275 | Exhaust gas recirculating system - An exhaust gas recirculation system. | 08-19-2010 |
20100224173 | Heat Exchanger with Cast Housing and Method of Making 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 second flow channels for the flow of an exhaust gas through the first flow channels and coolant through the second flow channels. The channel members form a core having first and second ends, this core being mounted in the casting member. A first flange is fixedly attached to a first end of the core so as to form a sealed joint. A second flange is fixedly attached to the second end of the core so as to form another sealed joint. The first and second flanges are each coupled by fasteners to their respective ends of the casting. | 09-09-2010 |
20100229842 | COOLER ARRANGEMENT FOR A MOTOR VEHICLE - A cooler device for a motor vehicle comprising: a charge air cooler with a first cooler element, an EGR cooler with a second cooler element the first cooler element and the second cooler element are arranged substantially in plane with one another. A screening device is arranged in front of or behind the cooler elements in order to regulate the air flow through the cooler elements. The screening device comprises a first screening portion associated with the first cooler element and a second screening portion associated with the second cooler element. A control mechanism is operable to switch the screening device to and fro between an open position and a closed position. The first screening portion allows more air to pass through than the second screening portion when the screening device is in the closed position, in order thereby to control the air flow through the cooler elements in such a way that the air flow through the first cooler element is limited to a lesser extent than the air flow through the second cooler element when the screening device is in the closed position. | 09-16-2010 |
20100242928 | 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, a metering system is provided that meters an alkaline substance into the exhaust gas stream and is arranged upstream of the exhaust gas recirculation cooler. | 09-30-2010 |
20100242929 | ARRANGEMENT AND METHOD FOR THE RETURN OF EXHAUST GASES IN A COMBUSTION ENGINE - An arrangement and a method for recirculation of exhaust gases of a combustion engine. A return line returns exhaust gases to the combustion engine. An EGR cooler device cools the exhaust gases before the gases are led to the combustion engine. A container gathers condensate which forms in the EGR cooler device. A line connects the container to a flow section for the exhaust gases in the EGR cooler device. A driver leads condensate from the container into the flow section for the exhaust gases in the EGR cooler device. | 09-30-2010 |
20100263641 | 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 exhaust-gas system. The compressor is disposed in the fresh air system. The turbine has a turbine wheel and a wastegate channel configured to allow a bypassing flow of exhaust-gas past the turbine wheel of the turbine. A wastegate valve is disposed in the wastegate channel for selectively opening and closing the wastegate channel. An electric actuator is provided for operating the wastegate valve. A charge-air cooler is disposed, downstream of the compressor, in the fresh air system. The charge-air cooler is integrated into the intake manifold and is embodied with a water-cooled heat exchanger. | 10-21-2010 |
20100269800 | EXHAUST GAS RECIRCULATION COOLING CIRCUIT - An apparatus for cooling exhaust gas for recirculation in an internal combustion engine includes a separate coolant circuit including an exhaust gas cooler connected to the engine radiator. Circulating coolant outside the engine coolant circuit results in coolant at a lower temperature being delivered to the EGR cooler under most circumstances, and therefore, improved cooling of the exhaust gas. | 10-28-2010 |
20100275892 | PETROL ENGINE HAVING A LOW-PRESSURE EGR CIRCUIT - Internal combustion petrol engine comprising an engine block ( | 11-04-2010 |
20110005503 | Exhaust gas recirculation valve contaminant removal - An exhaust gas recirculation system including an exhaust gas passageway which routes a flow of exhaust gas from an exhaust gas source to an intake manifold; an exhaust gas passageway valve which controls flow to the intake manifold; a cooling system coupled with the exhaust gas passageway positioned at a location upstream of the exhaust gas source and downstream of the intake manifold and operable to transfer heat from the flow of exhaust gas to a coolant in flow communication with the cooling system; a bypass passageway coupled with the exhaust gas passageway and bypassing the cooling system; a bypass valve operable to control flow through the bypass passageway; at least one valve operation sensor; and a controller operable to control the bypass valve to direct the flow of exhaust gas to the bypass passageway during exhaust gas recirculation based on a signal from the valve operation sensor. | 01-13-2011 |
20110011376 | EXHAUST GAS RECIRCULATION SYSTEM AND METHOD OF OPERATING THE SAME - The present invention provides an exhaust gas recirculation cooler for transferring heat from engine exhaust to coolant including a pair of spaced apart headers, a tube body extending between the pair of headers and positioned along a flow path for the coolant and at least partially defining a flow path for the engine exhaust along a length of the tube between the pair of headers, and a corrugated insert supported in an interior of the tube and having a height in a direction of a plurality of corrugations and a width between about 8.6 and about 13.5 times the height. The width can be substantially perpendicular to the length of the tube and can be substantially perpendicular to the height of the insert. | 01-20-2011 |
20110011377 | CONSTRUCTION MACHINE - The present invention provides a construction machine, capable of enhancing the cooling efficiency of an air-cooled cooler for EGR without deterioration of the cooling effect of a heat exchanger in spite of the arrangement of the air-cooled cooler for EGR near a cooling fan. The construction machine includes: an EGR line | 01-20-2011 |
20110023839 | 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 regeneration or other post injection operation with EGR gas temperature below a corresponding threshold or with EGR low-temperature coolant temperature below a corresponding threshold. The system and method reduce exhaust gases passing through the EGR cooler that contain a high concentration of unburned or partially unburned fuel when the temperature in the EGR system is lower than the fuel condensation temperature. | 02-03-2011 |
20110023840 | Exhaust Gas Cooler - A method of cooling exhaust gas (F) from an engine in an EGR cooler ( | 02-03-2011 |
20110023841 | METHOD FOR OPERATING A COMBUSTION UNIT AND A COMBUSTION UNIT - A method for operating a combustion unit ( | 02-03-2011 |
20110023842 | 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 cooled and uncooled EGR at a mixing location upstream of an intake passage inlet by routing at least a portion of exhaust gas through a bypass around the EGR cooler. | 02-03-2011 |
20110023843 | EXHAUST GAS RECIRCULATION COOLER - An exhaust gas recirculation assembly for an engine is disclosed in which an EGR cooler | 02-03-2011 |
20110030662 | 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 system including a first partial gas discharge line for discharging a first partial gas stream from a first fired cylinder group via the exhaust gas treatment unit and a second gas discharge line for discharging a second partial gas stream from a second unfired cylinder group separately from the hot gas stream directed through the exhaust gas treatment unit to keep it at operating temperatures. | 02-10-2011 |
20110041816 | Apparatus and Method for Protecting Against Fouling of an Exhaust Gas Recirculation Valve - This invention relates to a method for protecting an exhaust gas recirculation (EGR) valve from fouling due to hydrocarbon condensation at low EGR cooler outlet exhaust temperatures. In modern internal combustion engines exhaust gas recirculation (EGR) valves provide a means to recirculate exhaust gases into the intake air stream. The EGR valve regulates the flow of exhaust gas entering the stream. The EGR valve can experience fouling due to the condensation of hydrocarbons at low EGR cooler outlet exhaust temperatures. Typically, fouling occurs when the internal combustion engine is operating at relatively low temperatures, namely during low speed and/or low torque operations. The effects of fouling an EGR valve include higher emission levels, reduction in fuel economy, and rough idling. | 02-24-2011 |
20110048389 | 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 falls below a predetermined level, the engine control system closes or partially closes the EGR control valve to stop EGR flow through the cooler and the EGR valve. | 03-03-2011 |
20110083648 | FLEX Dual Stage EGR Cooling - A circuit for cooling exhaust gas being recirculated through an EGR system ( | 04-14-2011 |
20110088671 | 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 compressor. The cooling fluid circuit has a quantity of fluid that circulates through the exhaust gas recirculation cooling system and receives heat from the exhaust gas recirculation cooling system. The exhaust gas recirculation cooler is disposed in fluid communication with the exhaust system to receive engine exhaust gas from the engine and to remove heat from the exhaust gas. The exhaust gas recirculation cooler additionally disposed in fluid communication with the cooling fluid circuit. The cooling fluid within the cooling fluid circuit receives heat within the exhaust gas recirculation cooler. The turbine is disposed in fluid communication with the cooling fluid circuit. The turbine converts heat energy within the cooling fluid circuit to mechanical energy. A condenser is disposed in fluid communication with the cooling fluid circuit. The condenser cools fluid within the cooling fluid circuit. The compressor is also disposed in fluid communication with the cooling fluid circuit. The compressor pressurizes the fluid within the cooling fluid circuit and circulates the fluid within the cooling fluid circuit. | 04-21-2011 |
20110088672 | EXHAUST HEAT RECOVERY AND EXHAUST GAS RECIRCULATION WITH COMMON HEAT EXCHANGER - An apparatus for a vehicle with an engine is provided that accomplishes exhaust heat recovery and exhaust gas recirculation with a common heat exchanger used for both purposes. The apparatus includes an exhaust system through which exhaust gas is discharged from the engine. A heat exchanger is positioned within the exhaust system. Coolant flow passages are provided in thermal communication with the engine and with the heat exchanger. A bypass valve is operable in a first position to direct the exhaust gas through the heat exchanger to transfer heat to the coolant flow passages in a coolant heating mode, and operable in a second position in which the exhaust gas bypasses the heat exchanger in a bypass mode during which no significant coolant heating occurs via the heat exchanger. A portion of the exhaust gas is recirculated to the engine after cooling via the heat exchanger. | 04-21-2011 |
20110094482 | EXHAUST GAS RECIRCULATION SYSTEM WITH A NOx SENSOR - Various systems and methods are described for operating an engine system having a sensor coupled to an exhaust gas recirculation system in a motor vehicle. One example method comprises during a first operating condition, directing at least some exhaust gas from an exhaust of the engine through the exhaust gas recirculation system and past the sensor to an intake of the engine and, during a second operating condition, directing at least some fresh air through the exhaust gas recirculation system and past the sensor. | 04-28-2011 |
20110094483 | EXHAUST GAS RECIRCULATION APPARATUS - An exhaust heat recirculation apparatus is capable of improving fuel mileage by heating lubricant using exhaust heat. The exhaust gas recirculation apparatus has a heat exchanger that is mounted at an exhaust line of an engine for heating coolant using the exhaust gas. The exhaust gas recirculation apparatus may include a main line allowing exhaust gas exhausted from each cylinder of the engine to communicate to a exhaust gas inlet, a bypass line communicated to a downstream side of the main line, a bypass valve mounted inside the bypass line, and a heat exchanger selectively communicated to the bypass line by way of the bypass valve. | 04-28-2011 |
20110094484 | MULTI-PORT VALVE | 04-28-2011 |
20110100342 | FORCED CONVECTION EGR COOLING SYSTEM - A method of cooling recirculated exhaust gas from an exhaust manifold ( | 05-05-2011 |
20110100343 | EMISSION CONTROL SYSTEM FOR AN ENGINE HAVING A TWO-STAGE TURBOCHARGER - While an engine ( | 05-05-2011 |
20110108013 | EXHAUST GAS RECIRCULATION VALVE WITH BYPASS CAPABILITY AND METHOD - Unique to this invention is the design of an Exhaust Gas Recirculation (EGR) valve with bypass capabilities. EGR valves combined with a bypass valve are expensive to design and manufacture due to their complexity and unique differences. Furthermore, the reliability of multiple components is much lower than that of the single component. During various engine operating conditions it is necessary to divert the flow of exhaust gas around the EGR cooler through the intake manifold or through the EGR cooler to lower the temperature of the exhaust gas to reduce noxious emissions. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 05-12-2011 |
20110120430 | SELF-COOLING EXHAUST GAS RECIRCULATION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A self-cooling exhaust gas injection device making it possible to inject heated gases, for example recycled exhaust gases from an internal combustion engine, into the air intake distributor of this engine, characterized in that it comprises a return pipe for the exhaust gases ( | 05-26-2011 |
20110120431 | Exhaust Gas Recirculation Valve Actuator - An EGR system for an engine that includes an exhaust gas recirculation conduit in fluid communication with an exhaust line and an intake port is provided. A cooler is fluidly positioned along the exhaust gas recirculation conduit and in fluid communication with the exhaust line and the intake port. A valve is fluidly positioned along the exhaust gas recirculation conduit and in fluid communication with the exhaust line and the intake port. The valve includes an electronic solenoid controlled hydraulic actuator operable to control the valve, and the actuator includes a position feedback sensor to detect a position of the valve. | 05-26-2011 |
20110139133 | 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 light-off of an exhaust catalyst, exhaust gas is routed through the HP-EGR system which includes a HP-EGR cooler. Heat from the exhaust gas is then used to warm the engine coolant via the HP-EGR cooler. One or more engine operating parameters are adjusted in response to the HP-EGR entering the engine during the cold start in order to maintain combustion stability. | 06-16-2011 |
20110146636 | 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 that exits the cylinders, cools the removed portion of the exhaust, and recirculates the cooled removed portion of the exhaust for reintroduction into the cylinders. The cooled recirculated exhaust is reintroduced directly to the cylinders using a dedicated valve controlled by an electronic control unit. | 06-23-2011 |
20110168142 | TWO-STAGE COOLED EXHAUST GAS RECIRCULATION SYSTEM - A device for cooled recirculation of exhaust gas of an internal combustion engine charged with the aid of an exhaust gas turbocharger, the internal combustion engine having a fresh gas system and an exhaust gas system, which are connected to a two-stage exhaust gas cooler via an exhaust gas recirculation line. A device by way of which a sufficient amount of exhaust gas may be recirculated by simple means is provided. This is achieved in that exhaust gas recirculation line | 07-14-2011 |
20110226222 | HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME - An exhaust gas recirculation cooler includes an inlet configured to receive exhaust gas from an engine, an outlet configured to direct the exhaust gas back toward the engine, and an exhaust gas flow conduit. The flow conduit includes a first end adjacent the inlet, a second end adjacent the outlet, a first narrow side, a second narrow side, substantially flat broad sides extending between the narrow sides, a first channel adjacent the first narrow side and extending between the ends, a second channel adjacent the second narrow side and extending between the ends, and a plurality of third channels located between the first and second channels and extending between the ends. A plate is located at one end of the flow conduit to inhibit the exhaust gas from flowing through at least one of the first channel and the second channel while allowing exhaust gas flow through the third channels. | 09-22-2011 |
20110232613 | Motor Vehicle Having an Exhaust Gas System - The invention relates to a motor vehicle having an internal combustion engine and an exhaust gas system with an exhaust gas line by means of which exhaust gas from the internal combustion engine can be discharged, and an exhaust gas recirculation line by means of which exhaust gas from the exhaust gas line can be recirculated to an intake manifold of the internal combustion engine. In the exhaust gas recirculation line, there is an exhaust gas cooler which can move relative to the internal combustion engine. Due to the relative mobility, the exhaust gas cooler can be located at a distance from the internal combustion engine so that direct delivery of heat from the internal combustion engine into the exhaust gas cooler is avoided. This improves the cooling performance of the exhaust gas cooler and enables the use of less heat-resistant materials. The invention furthermore relates to a method for operating such a motor vehicle in which a partial flow cross section of the exhaust gas cooler is cleared or closed depending on the operating state of the motor vehicle. This enables adaptation of the cooling performance of the exhaust gas cooler to the operating state of the motor vehicle. | 09-29-2011 |
20110239996 | ARRANGEMENT FOR COOLING OF RECIRCULATED EXHAUST GASES IN A COMBUSTION ENGINE - An arrangement for recirculation of exhaust gases of a combustion engine ( | 10-06-2011 |
20110253113 | METHODS AND SYSTEMS FOR OPERATING AN ENGINE - Various methods and systems are provided for operating an internal combustion engine, the engine having a plurality of cylinders including one or more donor cylinders and one or more non-donor cylinders. In one example, a method includes, during an exhaust gas recirculation cooler heating mode, operating at least one of the donor cylinders at a cylinder load sufficient to increase an exhaust temperature for regenerating an exhaust gas recirculation cooler, and operating at least one of the non-donor cylinders in a low- or no-fuel mode. | 10-20-2011 |
20110259306 | 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 adjacent each cylinder for uniform distribution of the water to the engine cylinders. The pump is controlled to inject the water at appropriate conditions during the engine operating cycle. | 10-27-2011 |
20110271937 | HEAT EXCHANGER METHOD AND APPARATUS FOR ENGINE EXHAUST GASES - A heat exchanger device for an exhaust gas recirculation system of an internal combustion engine includes a heat exchange device including a first surface and a second surface. The first surface is in fluid contact with a recirculated portion of exhaust gas flowing in an exhaust system and the second surface is in fluid contact with a second fluid. The first surface is subjected to a surface treatment effective to reduce adhesive properties that relate to surface tension of particulate matter that precipitates from the recirculated portion of the exhaust gas. | 11-10-2011 |
20110283978 | INTERNAL COMBUSTION ENGINE WITH A FIRST AND SECOND COOLING SYSTEM - A cooling structure for cooling a liquid-cooled internal combustion engine is provided where the engine includes an EGR passage interposed between an exhaust manifold structure and an inlet manifold structure of the engine. The cooling structure includes a first cooling system and a second cooling system. The first cooling system includes at least one radiator and a liquid coolant circulatable through the radiator and the internal combustion engine for cooling the internal combustion engine. A flywheel housing for the internal combustion engine is provided with at least a portion of the second cooling system. | 11-24-2011 |
20110315129 | EXHAUST GAS RECIRCULATION DEVICE OF ENGINE - A connecting passage is formed inside a cylinder head, which extends rearward from an exhaust passage and connects to the exhaust passage. The connecting passage branches inside the cylinder head into two branch passages, which open at a rear end face of the cylinder head, respectively. An opening portion, one of opening portions of the branch passages, connects to an EGR cooler, and another opening portion, the other of opening portions of the branch passages, connects to a bypass pipe. Accordingly, the exhaust gas recirculation device of an engine which can restrain the device from being improperly large sized, providing the EGR cooler and the bypass pipe, can be provided. | 12-29-2011 |
20110315130 | ARRANGEMENT FOR COOLING OF RECIRCULATING EXHAUST GASES OF A COMBUSTION ENGINE - An arrangement for cooling of recirculating exhaust gases of a combustion engine ( | 12-29-2011 |
20120031381 | 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 LP EGR and uncooled HP EGR rates within second limits, different from the first, to maintain the target dilution level in the intake manifold during transient conditions. | 02-09-2012 |
20120067332 | Integrated exhaust gas recirculation and charge cooling system - An exhaust gas recirculation system comprises an exhaust driven turbocharger to deliver a compressed intake charge through an intake charge conduit and to an engine. A compressed intake charge cooler receives, cools and transits the compressed intake charge. A cooling system, independent of the engine cooling system delivers coolant to the compressed intake charge cooler to transfer heat from the compressed intake charge thereto and to a cooler. Exhaust gas conduits extend between the exhaust system of the internal combustion engine, from locations upstream and downstream of the exhaust driven turbocharger, to the intake charge conduit. Exhaust gas coolers receive, cool and transit the exhaust gas. | 03-22-2012 |
20120090584 | APPARATUS AND METHOD FOR CONTROLLING LOW PRESSURE EXHAUST GAS RECIRCULATION SYSTEM - An apparatus and a method for controlling a low pressure exhaust gas recirculation system has advantages including minimizing condensate water generation in an intercooler and a low pressure EGR cooler by controlling EGR gas amount through optimally mapping many control variables influencing direct factors instead of controlling the EGR gas amount according to direct factors. | 04-19-2012 |
20120090585 | CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - When EGR is on (YES in S | 04-19-2012 |
20120125300 | 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 separation of engine exhaust air into cool and hot gas streams and encloses a filter element that filters out particulate matter and other pollutants. Engine exhaust air is circumferentially discharged into the muffler chamber and a cone member is disposed inside the chamber to separate and direct the gas streams. The cooled gas stream is redirected to the air intake device through an outlet pipe at the first end of the muffler so pressurized cooled air is directed into the air/fuel mixing device to improve engine performance and efficiency. The filtered hot gas stream is discharged to the environment out a discharge pipe at the second end of the muffler. | 05-24-2012 |
20120167862 | DROP-IN TYPE OF EXHAUST GAS RECIRCULATION VALVE, AND SYSTEM FOR ATTACHING SAME - An attaching system of an exhaust gas recirculation valve includes: an attachment unit | 07-05-2012 |
20120304970 | Mixing Pipe for Recirculated Exhaust Gas and Air - The present disclosure refers to a mixing pipe for mixing recirculated exhaust gas and air, preferably supplied by a high pressure compressor, and supplying a mixture of the exhaust gas and the air to a plurality of combustion chambers of an internal combustion engine. The mixing pipe may comprise a first mixing pipe section having a mixing pipe inlet and a mixing pipe outlet. The distance between the mixing pipe inlet and the mixing pipe outlet may have a predetermined length, wherein the predetermined length of the first mixing pipe section is configured to achieve a defined mixing ratio of the exhaust gas and the air at the mixing pipe outlet. | 12-06-2012 |
20130000617 | MIXING SYSTEM FOR ENGINE WITH EXHAUST GAS RECIRCULATION - An air exhaust mixer assembly includes an upstream intake section with an upstream elbow and a downstream elbow. A mixing tube is configured to introduce exhaust gas into the upstream intake section at a location upstream of the downstream elbow. An internal combustion engine utilizing the air exhaust mixer assembly is also provided. | 01-03-2013 |
20130000618 | Method for Operating an Internal Combustion Engine - A method for operating an internal combustion engine includes providing at least one gas exchange valve that is used by at least one of the working cylinders of the internal combustion engine as an exhaust-gas recirculation valve. In a predetermined operating state of the internal combustion engine, the exhaust-gas recirculation valve is opened at least twice within a working cycle of 720 degrees of the crankshaft, wherein an opening duration of the first opening of the exhaust-gas recirculation valve at least overlaps in time with an opening of the outlet valve during the exhaust stroke and wherein an opening duration of the second opening of the exhaust-gas recirculation valve at least overlaps in time with an opening duration of the inlet valve during the intake stroke, wherein the exhaust-gas recirculation valve is closed between the first opening and the second opening. | 01-03-2013 |
20130000619 | EXHAUST GAS RECIRCULATION COOLER - An exhaust gas recirculation assembly for an engine is disclosed in which an EGR cooler and a bypass passage are combined in a single housing. Two EGR valves are used to control exhaust gas flow through the EGR cooler and the bypass passage respectively. By using two EGR valves, the disclosure obviates bypass baffles or flaps which can suffer from leakage problems. The arrangement of the EGR valves permits the use of un-cooled EGR valves and the EGR valves can be used to control not only the flow of exhaust gas through the EGR cooler or bypass passage, but also the EGR flow for the engine. | 01-03-2013 |
20130008417 | Control system for engine with exhaust gas recirculation - An internal combustion engine includes an exhaust restriction valve and an exhaust gas recirculation control valve. Upon determining that a malfunction or fault condition exists relative to one of the valves, the controller may command the other valve to move towards a predetermined position. A malfunction or fault condition may result in derating of the engine. | 01-10-2013 |
20130014733 | METHOD FOR COOLING AN INTERNAL COMBUSTION ENGINE HAVING EXHAUST GAS RECIRCULATION AND CHARGE AIR COOLING - A system for cooling charge air from a turbo- or supercharger and exhaust gas recirculated from an exhaust gas recirculation valve in an internal combustion engine. The system includes a radiator and parallel charge air and exhaust gas heat exchanger units, the charge air heat exchanger unit having aluminum tubes and fins for air cooling the charge air, and the exhaust gas heat exchanger unit having stainless steel tubes and fins. The charge air heat exchanger and the exhaust gas heat exchanger units are each disposed adjacent the radiator, on the same or opposite sides. Alternatively, there is provided a pair of combined charge air cooler and exhaust gas cooler heat exchanger units, with a first heat exchanger unit having stainless steel tubes and fins, and a second heat exchanger unit having aluminum tubes and fins. The heat exchanger units are disposed on opposites sides of the radiator. | 01-17-2013 |
20130019847 | RANKINE CYCLE WASTE HEAT RECOVERY SYSTEM AND METHOD WITH IMPROVED EGR TEMPERATURE CONTROL - A waste heat recovery (WHR) system and method for regulating exhaust gas recirculation (EGR) cooling is described. More particularly, a Rankine cycle WHR system and method is described, including an arrangement to improve the precision of EGR cooling for engine efficiency improvement and thermal management. | 01-24-2013 |
20130019848 | EXHAUST GAS RECIRCULATION APPARATUS OF INTERNAL COMBUSTION ENGINE - Provided is an exhaust gas recirculation apparatus of an internal combustion engine which can suppress condensed water from being generated in an EGR pipe at the upstream side of an EGR cooler, and thus can suppress the an EGR pipe from being corroded. An EGR device comprises an EGR pipe formed with an EGR passage held in communication with an exhaust passage and an intake passage, an EGR shutoff valve provided on the EGR pipe to be close to the exhaust passage and operative to selectively take an opened state or a closed state to enable EGR gas to be shut off into the EGR passage in the closed state, an EGR valve provided on the EGR pipe closer to the intake passage than the EGR shutoff valve and operative to selectively take an opened state or a closed state to adjust the amount of the EGR gas flowing into the intake passage, an EGR cooler provided on the EGR pipe between the EGR shutoff valve and the EGR valve to cool the EGR gas flowing into the EGR passage, and a heating pipe | 01-24-2013 |
20130025577 | EXHAUST-GAS COOLING MODULE FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas cooling module for an internal combustion engine includes an exhaust gas recirculation valve comprising an exhaust gas recirculation valve housing having an inlet, an exhaust gas heat exchanger, an exhaust gas non-return valve comprising an exhaust gas non-return valve housing, and two exhaust gas channels. The two exhaust gas channels are arranged in the exhaust gas cooling module so as to separately extend from the inlet of the exhaust gas recirculation valve housing to the exhaust gas non-return valve housing via the exhaust gas heat exchanger. | 01-31-2013 |
20130042841 | EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation system for an internal combustion engine comprising an exhaust gas recirculation conduit fluidly connecting an exhaust manifold to an intake manifold of the internal combustion engine, first and second exhaust gas coolers located in series in the exhaust gas recirculation conduit, each of the first and second exhaust gas coolers comprising an inlet and an outlet fluidly connected to a first and a second coolant circuit respectively, wherein the second coolant circuit comprises a radiator having a coolant inlet in fluid communication with the coolant outlet of the second exhaust gas cooler, a pump having a coolant inlet in fluid communication with a coolant outlet of the radiator and a coolant outlet in fluid communication with the coolant inlet of the second exhaust gas cooler, and an additional conduit fluidly connecting the coolant outlet of the exhaust cooler. | 02-21-2013 |
20130042842 | EXHAUST GAS RECIRCULATION COOLER FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation cooler for an internal combustion engine is provided. The exhaust gas recirculation cooler includes an external casing with an inlet and an outlet for an exhaust gas flow. A first tube bundle and a second tube bundle, each with an inlet and an outlet for a coolant, are located inside the external casing so that the exhaust gas flow flows through the first tube bundle and the second tube bundle in series. A bypass passage conveys the exhaust gas flow from downstream the first tube bundle to the outlet of the external casing bypassing the second tube bundle. The bypass passage is located inside the external casing between the first tube bundle and the second tube bundle. | 02-21-2013 |
20130055991 | EXHAUST GAS RECIRCULATION SYSTEM HAVING ACTIVE MATERIAL ACTUATED BY-PASS - An exhaust gas recirculation system adapted for use by an internal combustion engine, and for selectively diverting a recirculated portion of the engine exhaust away from the EGR cooler, includes a by-pass conduit and/or feed line shiftable between open and closed conditions, and an active material actuator. | 03-07-2013 |
20130074814 | HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME - An exhaust gas recirculation cooler that includes an inlet tank, an outlet tank, and an exhaust gas flow conduit in fluid communication with the inlet tank and the outlet tank. The exhaust gas flow conduit includes a first end, a second end, a first narrow side, a second narrow side, a first channel adjacent the first narrow side and extending between the first end and the second end, a second channel adjacent the second narrow side and extending between the first end and the second end, and a plurality of third channels located between the first channel and the second channel and extending between the first end and the second end. At least one of the inlet tank and the outlet tank includes a wall that inhibits exhaust gas from flowing through the first channel while allowing exhaust gas flow through the plurality of third channels. | 03-28-2013 |
20130081601 | GAS DISTRIBUTION MANIFOLD IN THE CYLINDER HEAD OF AN ENGINE, WITH THE RECIRCULATED EXHAUST GAS MIXTURE IN A COUNTER-FLOW TO THE ADMISSION GASES - The invention relates to a gas distribution manifold ( | 04-04-2013 |
20130087127 | Power System Comprising An Air Cooled HT EGR Cooler And LT EGR Cooler - Disclosed is a power system comprising an internal combustion engine. A fan is associated with the engine and configured for providing an air flow. The power system further comprises an EGR system having an air cooled, HT EGR cooler configured for cooling recirculated exhaust gas, wherein the HT EGR cooler is positioned downstream of the internal combustion engine. The HT EGR cooler is further positioned such that the air flow travels across the outside of the HT EGR cooler. The EGR system further comprises an air cooled, LT EGR cooler is configured for further cooling at least a portion of the recirculated exhaust gas, wherein the LT EGR cooler is positioned downstream of the HT EGR cooler. The LT EGR cooler is further positioned such that the air flow travels across the outside of the LT EGR cooler. | 04-11-2013 |
20130098341 | INTERCOOLER FOR VEHICLE - An intercooler for a vehicle that cools a mixture of EGR gas and exhaust gas may include a cooler main body with an inlet portion through which the mixture flows in formed at one side thereof and an outlet portion through which the mixture flows out formed at the other end side thereof, connection tubes that connect the inlet portion with the outlet portion and are arranged from an upper side to a lower side of the cooler main body to cool the mixture, and a condensate storage unit that connects a lower end portion of the inlet portion with a lower end portion of the outlet portion and stores the condensate that is formed in the connection tubes. | 04-25-2013 |
20130133633 | REMOVAL APPARATUS FOR REMOVING UNBURNED DEPOSITS IN EGR FLOW PASSAGE OF VEHICLE - There is provided a removal apparatus for removing unburned deposits in an EGR flow passage of a vehicle. A control device of the removal apparatus is provided with a deposit removal implementing unit. The EGR gas flow control valve flows a part of exhaust gas through the EGR flow passage in a case where the control device determines that a temperature of cooling water of an engine is equal to or more than a predetermined temperature. The deposit removal implementing unit implements removal of the unburned deposits in the EGR flow passage in a case where the control device determines that the engine is in a high-load condition while the exhaust gas flows in the EGR flow passage and that it is a deposit removal implementation timing. | 05-30-2013 |
20130152909 | Diesel-Gasoline Dual Fuel Powered Engine with Fouling Free Clean EGR System - A fouling free clean EGR system for a diesel-gasoline dual fuel powered engine allows re-circulation of an exhaust gas of a certain cylinder among a plurality of cylinders. The fouling free clean exhaust gas recirculation (EGR) system for a diesel-gasoline dual fuel powered engine in which gasoline and air are pre-mixed and supplied to cylinders and then a diesel fuel is injected and combusted together comprises a directly-exhaust cylinder of which an exhaust valve of the cylinder is connected to an exhaust manifold directly connected to a after treatment device; and an EGR cylinder of which an exhaust valve of the cylinder is connected to an EGR line and which supplies the EGR gas to the diesel-gasoline dual fuel powered engine. | 06-20-2013 |
20130167813 | COOLER ARRANGEMENT - A cooler arrangement for connection to an exhaust gas manifold or to an exhaust gas outlet of an engine block of an internal combustion machine includes an exhaust gas cooler comprising at least one exhaust gas duct and a coolant jacket. The exhaust gas cooler is configured to be mounted at the engine block or at the exhaust gas manifold. An exhaust gas recirculation valve is configured to regulate an exhaust gas flow. An actuator is disposed on a side of the exhaust gas recirculation valve opposite the exhaust gas cooler. The actuator is configured to actuate the exhaust gas recirculation valve. A coolant duct segment is arranged between the exhaust gas manifold or the engine block and the actuator. The coolant duct segment is fluidically connected to the coolant jacket. | 07-04-2013 |
20130186377 | ENGINE WITH COOLANT THROTTLE AND METHOD FOR CONTROLLING THE SAME - A method of controlling cooling flow through a coolant system of an internal combustion engine having an electronic control module, a cooling throttle, an EGR cooler, and an interstage cooler is provided. A pressure within a coolant system is determined. A temperature within the coolant system is determined. A temperature of exhaust gas exiting an EGR cooler is determined. A temperature of intake air exiting an interstage cooler is determined. A position of a cooling throttle within the coolant system is adjusted based upon at least one of the determined pressure within the coolant system, temperature within the coolant system, temperature of exhaust gas exiting the EGR cooler, and temperature of intake air exiting an interstage cooler being above respective predefined thresholds to adjust fluid flow within the coolant system. | 07-25-2013 |
20130206120 | EGR COOLING STRUCTURE - An EGR cooling structure is provided. The EGR cooling structure ( | 08-15-2013 |
20130213368 | EXHAUST GAS HEAT EXCHANGER WITH AN OSCILLATION ATTENUATED BUNDLE OF EXCHANGER TUBES - A heat exchanger is disclosed for the exhaust gas train of a motor vehicle. The heat exchanger includes a bundle of separately formed exhaust gas carrying exchanger tubes that is disposed in a closed housing formed separately, a coolant flowing through the housing and around the outside of the exchanger tubes. A bandage is disposed on the bundle of exchanger tubes mechanically connecting a plurality of the exchanger tubes to militate against an oscillation of the exchanger tubes. | 08-22-2013 |
20130220288 | EXHAUST GAS RECIRCULATION IN A RECIPROCATING ENGINE WITH CONTINUOUSLY REGENERATING PARTICULATE TRAP - An engine and a method of operating an engine. One method includes: routing air to both a donor and a non-donor cylinder of an engine; combusting an air fuel mixture in the cylinders; routing exhaust gas from the non-donor cylinder through an exhaust manifold; and recirculating exhaust gas from the donor cylinder through an aftertreatment system and a cooler back to the intake manifold. Another method includes: recirculating exhaust gas from a first cylinder of an engine to an intake stream or air-fuel mixture of the engine, whereby: the recirculated exhaust gas from the first cylinder flows through an after treatment system; and the recirculated exhaust gas is cooled to a lower temperature after the after treatment system; and routing exhaust gas from the second cylinder through an exhaust manifold. | 08-29-2013 |
20130220289 | INTAKE SYSTEM WITH AN INTEGRATED CHARGE AIR COOLER - An intake assembly in an engine is provided. The intake assembly includes a compressor and a plenum in fluidic communication with the compressor, the plenum having an integrated charge air cooler including a coolant inlet and a coolant outlet in fluidic communication with a coolant passage and cooling plates extending into a plenum enclosure and coupled to the coolant passage. The intake assembly further includes a throttle body coupled to the plenum. | 08-29-2013 |
20130220290 | COOLING DEVICE FOR AN ENGINE EXHAUST GAS RECIRCULATION CIRCUIT - The invention relates to a cooling device for an engine ( | 08-29-2013 |
20130247884 | METHOD AND APPARATUS FOR INJECTING OXYGEN WITHIN AN ENGINE - An engine system comprising an accelerator device which is operable to increase the amount of fuel delivered to the engine for combustion; an exhaust gas recirculation system for removing exhaust gas from the engine and recirculating a portion of the exhaust gas to the engine; and an oxygen delivery apparatus adapted to deliver oxygen to the engine in response to operation of the accelerator device. Using this system, performance losses from EGR can be abated by introducing compensatory oxygen. | 09-26-2013 |
20130263832 | Fluid Cooling System - Disclosed is a simplified system of cooling an exhaust from an internal combustion engine by drawing ambient air through a heat exchanger which comprises a venturi in the exhaust circuit to drive said cooling medium therethrough. The disclosed device could also be used in the cooling of other media. | 10-10-2013 |
20130263833 | CARRIER HOUSING AND INTERNAL COMBUSTION ENGINE - The disclosure relates to a carrier housing for an internal combustion engine having an engine block with a V arrangement of cylinders and having a charging group, designed for two-stage charging. The carrier housing is designed to bear at least a number of components of the charging group, and is designed to be arranged on an upper face of the engine block in an intermediate space of the V arrangement. The carrier housing includes a bottom fastening mechanism for attaching the carrier housing to the upper face of the engine block, a charge air channel formed in the interior of the carrier housing for conducting the charge air of a high-pressure and/or low-pressure stage of the charging group, a cooling fluid channel formed in an interior of the carrier housing for conducting the cooling fluid of an exhaust gas recirculation of the charging group, a channel for coolant and a channel for lubricant formed in the interior of the carrier housing for the high-pressure and/or low-pressure stage of the charging group, and upper carrying elements for components of at least the high-pressure and/or low-pressure stage of the charging group. | 10-10-2013 |
20130269663 | EXHAUST-GAS HEAT EXCHANGE DEVICE - An exhaust-gas heat exchange device includes an inflow portion, a first outflow portion, a second outflow portion and a flow-rate adjustment portion. The inflow portion is provided on one end side of a casing that a cooling medium flows into a cooling medium passage. The first outflow portion is provided on the other end side of the casing so that the cooling medium flows out of the cooling medium passage. Moreover, the second outflow portion is provided on the one side of the cooling medium passage and at a position opposed to the inflow portion. The flow-rate adjustment portion is provided so as to generally allow the cooling medium to flow out through the first outflow portion and of the second outflow portion, and to adjust a ratio of flow rates of the cooling medium flowing out through the first outflow portion and the second outflow portion. | 10-17-2013 |
20130276765 | APPARATUS AND METHOD FOR WARMING UP AN ENGINE - An engine system for a vehicle is described in which a turbocharger adapted to compress intake air is thermally coupled to a charge air cooler device operatively interposing the turbocharger and the engine. The system further includes a reconfigurable cooling system operable in three modes based on the flow of coolant and temperatures detected therein. In particular, the approach may be used to enhance engine warm-up in cold ambient conditions without costly additional devices. | 10-24-2013 |
20130298883 | MOTOR VEHICLE COMPRISING A RECIRCULATED-GAS CIRCUIT AND METHOD FOR IMPLEMENTING SAME - In a motor vehicle having exhaust-gas recirculation, fluid of an air-conditioning circuit is used to cool coolant of a dedicated hydraulic circuit, which in turn cools recirculated exhaust gases in a two-stage heat exchanger, thus increasing engine gain by replenishing to reduce NOx emissions. A method differentiates control strategies for the circuits, as a function of vehicle driving conditions, continuous modes and transient braking and acceleration modes, to compensate for consumption of the compressor of the air-conditioning circuit. The circuits include a heat exchanger for heat exchange between the air-conditioning fluid and coolant, a bypass, capable of accumulating and releasing cold energy, and, optionally, a line condensing water vapour of the exhaust gases and reinjecting the condensed water to the intake. | 11-14-2013 |
20130312715 | EXHAUST GAS RECIRCULATION DEVICE - An exhaust gas recirculation system according to the present invention includes an EGR passage for introducing a part of exhaust gas emitted from an engine to an intake passage, the EGR passage communicating at one end thereof with the intake passage whereas at the other end thereof with an exhaust passage, an EGR control valve for controlling the flow rate of the exhaust gas flowing therein, the EGR control valve being disposed at one end of the EGR passage, an on-off valve for opening or closing the EGR passage, the on-off valve being disposed at the other end of the EGR passage, and a heat exchanger for cooling the exhaust gas introduced to the EGR passage, the heat exchanger) being disposed nearer the other end of the EGR passage than the on-off valve. | 11-28-2013 |
20130319382 | EXHAUST GAS RECIRCULATION APPARATUS OF INTERNAL COMBUSTION ENGINE - Provided is an exhaust gas recirculation apparatus of an internal combustion engine which can effectively suppress condensed water from being generated in an EGR passage, compared with the conventional apparatus. The exhaust gas recirculation apparatus includes an EGR pipe formed therein with an EGR passage held in communication with the exhaust passage and the intake passage, an EGR cooler in the EGR passage to cool the EGR gas, a first valve provided in the EGR passage between the EGR cooler and the exhaust passage to selectively take an opened state or a closed state, the first valve being operative to shut off the EGR gas from flowing into the EGR passage when the first valve takes the closed state, a second valve provided in the EGR passage between the EGR cooler and the intake passage to adjust an amount of the EGR gas flowing into the intake passage. | 12-05-2013 |
20130333675 | SENSOR ASSEMBLY WITH PROTECTIVE COATING AND METHOD OF APPLYING SAME - A sensor assembly with a protective coating and a method of applying the coating is disclosed. The sensor assembly includes a sensor, a first conductive lead extending from the sensor, a second conductive lead extending from the sensor, and a protective coating encapsulating the sensor and portions of the first conductive lead and the second conductive lead proximate to the sensor, wherein the protective coating comprises a fluoroelastomeric polymer. The coating is applied by immersing the sensor assembly into a cooled fluoroelastomeric polymer and then withdrawing the sensor assembly. | 12-19-2013 |
20130340730 | Method for Operating a Volume-Controlled Internal-Combustion Engine, and an Internal-Combustion Engine - A method is provided for operating a volume-controlled internal-combustion engine having an intake tract and an exhaust system. An expansion machine is arranged in the intake tract in the flow direction of a combustion air in front of an inlet valve of the engine. An output shaft of the expansion machine is coupleable with an output shaft of the engine. A heat exchanger is arranged in the exhaust system. Before combustion air flows through the expansion machine, it is heated in the heat exchanger by exhaust gas of the internal-combustion engine. The method achieves an efficiency improvement in an internal-combustion engine with a volume-controlled load control at partial load. | 12-26-2013 |
20140014076 | SYSTEMS AND METHODS FOR A COOLING FLUID CIRCUIT - Various methods and systems are provided for cooling an engine system. In one example, a system includes an exhaust gas recirculation cooler and an engine. The system further includes a cooling fluid circuit in which the exhaust gas recirculation cooler and the engine are positionable in series with the exhaust gas recirculation cooler disposed upstream of the engine. | 01-16-2014 |
20140014077 | Heat Exchanger for Exhaust Gas Recirculation - A heat exchanger associated with an exhaust gas recirculation system cools the exhaust gasses before directing them to an internal combustion engine. The heat exchanger can include a tube core having a plurality of exhaust gas tubes that can extend along a longitudinal axis. The tube core can also include a plurality of coolant channels disposed between and spacing apart the plurality of exhaust gas tubes. A coolant inlet line is disposed about at least a portion of the tube core to direct coolant inwardly toward the coolant channels. At least a portion of the coolant can converge approximately at the longitudinal axis line. | 01-16-2014 |
20140034027 | EXHAUST GAS RE-CIRCULATION SYSTEM - A system is provided. The system includes a coolant loop, a pump, and an exhaust gas re-circulation (EGR) cooler. The pump is disposed in the coolant loop. The EGR cooler is fluidly connected to the pump. Further, the system includes at least one flow control device to selectively isolate the EGR cooler from the coolant loop based on an operation mode of the pump. | 02-06-2014 |
20140034028 | PLATE-FIN STRUCTURE EXHAUST GAS RECIRCULATION COOLER WITH HEAT-INSULATION FUNCTION - The present invention discloses a plate-fin structure EGR cooler with heat-insulation function includes shell. The two ends of the shell are equipped with an air inlet flange and a discharge chamber. A water inlet pipe and a water outlet pipe are set on the shell near the air inlet flange and the discharge chamber. A cooling core assembly, an air chamber and a bellow are set in the shell. The main board at one end of the cooling core assembly is connected to the shell and the discharge chamber and the main board at another end is connected to one end of the air chamber. The other end of the air chamber is connected to one end of the bellow. The other end of the bellow is connected to the shell and the air inlet flange. A heat-insulating pipe connected to the air inlet flange is set within the bellow. Since the main board at the other side of the cooling core assembly is flexibly connected to the shell via the air chamber and the bellow, the axial deformation generated in the flat pipe unit can be transferred to and absorbed by the bellow through the air chamber and thus the axial heat stress generated from the heat deformation of the flat pipe unit is eliminated. | 02-06-2014 |
20140041643 | COOLER SYSTEM FOR VEHICLE - An integrated cooler system for a vehicle includes an Exhaust Gas Recirculation cooler, an oiler cooler, a cooling water line configured to selectively transfer the cooling water directly to the oil cooler without through the EGR cooler or to the oil cooler by way of the EGR cooler depending on the warm up state of the engine, and an oil line configured to selectively transfer the oil supplied from an oil pump to the oil cooler without passing through the EGR cooler or to an oil filter after passing through the EGR cooler depending on the warm up state of the engine, the oil filter serving to filter impurities contained in the oil from the oil cooler. | 02-13-2014 |
20140041644 | HEAT EXCHANGER FOR COOLING EXHAUST GAS - The present invention relates to a heat exchanger for cooling a gas which can mainly be applied in EGR systems with a floating core. The differences in temperature achieved during operation of the casing and the core of gas ducts housed therein give rise to degrees of expansion which are also different. If the ends of both components were fixed to each other, stresses which would cause the breakage thereof would occur. The common solution applied is to leave one of the ends of the core of ducts floating, i.e., with capacity for longitudinal displacement with respect to the casing to prevent the occurrence of stresses. The floating end of the core has an attachment by means of O-ring gaskets. The O-ring gaskets are made of an elastomer that cannot reach very high temperatures, hence in the state of the art the floating attachment is on the side where the already cooled gas exits. The invention is characterized by a special manner of attaching the end where the core is floating and the casing so as to allow the end where the hot gas enters to be the end where the attachment is a floating attachment. | 02-13-2014 |
20140048050 | COMBUSTION ENGINE AND METHOD FOR OPERATING A COMBUSTION ENGINE HAVING A DISCHARGE LINE FOR CONDENSATION WATER FROM THE INDUCTION TRACT - A method for operating a combustion engine comprising charging and charge air cooling, wherein in a critical operating state the charge air volume flow through a charge air cooler is adjusted and/or temporally changed by means of at least one charge air cooler valve in such a manner that condensation water present in the charge air cooler and/or in the subsequent induction tract is fed only in harmless quantities successively into the combustion chamber and is thus discharged. The invention further relates to a combustion engine that can be operated according to the method | 02-20-2014 |
20140060503 | EGR COOLER CONDITION MODULE AND ASSOCIATED SYSTEM - An apparatus for determining a condition of an exhaust gas recirculation (EGR) cooler of an internal combustion engine includes a clean EGR cooler module that is configured to estimate the temperature of exhaust gas exiting a clean EGR cooler. The apparatus also includes a fouled EGR cooler module that is configured estimate the temperature of exhaust gas exiting a fouled EGR cooler. Further, the apparatus includes an EGR cooler effectiveness module that is configured to determine a normalized effectiveness of the EGR cooler based on the estimated temperature of exhaust gas exiting a clean EGR cooler and the estimated temperature of exhaust gas exiting a fouled EGR cooler. Additionally, the apparatus includes an EGR cooler condition module that is configured to determine a condition of the EGR cooler based on the normalized effectiveness of the EGR cooler. | 03-06-2014 |
20140060504 | Exhaust Gas Recirculation Apparatus and Method for Forming Same - An exhaust gas recirculation cooler for internal combustion engines and a method of forming same. One or more cooler tubes incorporate a flexible section, comprised of one or more integrally formed convolutions, with a tube and fin architecture. The exhaust gas recirculation cooler provides thermal compensation, on a per-tube basis, with the flexible sections of the one or more cooler tubes individually displacing upon the thermal expansion of any of the respective tubes. | 03-06-2014 |
20140076292 | HEAT EXCHANGER - A heat exchanger ( | 03-20-2014 |
20140076293 | HEAT EXCHANGER - A heat exchanger ( | 03-20-2014 |
20140083398 | SYSTEM AND METHOD FOR DISCHARGING LIQUID OUT OF AN INTAKE TRACT OF A TURBOCHARGER ARRANGEMENT - The invention relates to a method for discharging liquid from an intake tract of a turbocharger arrangement including a charge air cooler. As such, a charge air cooler may include a liquid collector including a switchable valve downstream of a charge air cooler. The switchable valve may be adjusted following the determination of an opening frequency and an opening duration based on a liquid collector temperature and a liquid collector pressure. | 03-27-2014 |
20140096751 | EXHAUST GAS RECIRCULATION COOLER FOR VEHICLE - An EGR (Exhaust Gas Recirculation) cooler apparatus for a vehicle may include a main cooling unit that may be disposed on an EGR line recirculating exhaust gas from an exhaust manifold to an intake manifold to cool the exhaust gas through coolant, a valve assembly that may be connected to the main cooling unit to control exhaust gas flowing rate supplied to the main cooling unit, and a sub cooling unit that may be integrally formed on the main cooling unit and cools down the exhaust gas that may be to be supplied to the valve assembly. | 04-10-2014 |
20140096752 | EXHAUST GAS SUPPLY PIPE FOR EGR COOLER OF VEHICLE - Disclosed is an exhaust gas supply pipe for an EGR cooler of a vehicle, and more particularly, to an exhaust gas supply pipe for an EGR cooler of a vehicle, which is capable of improving an initial mounted state through a bellows and also of preventing damage caused by high exhaust heat. To this end, the present invention provides an exhaust gas supply pipe for an EGR cooler of a vehicle, including: a left pipe connected to an exhaust manifold of an engine; a right pipe connected to an EGR cooler; a bellows connecting the left pipe and the right pipe to each other and disposed at an outer periphery of the left pipe; and a heat blocking material filled in a space between the outer periphery of the left pipe and an inner periphery of the bellows. | 04-10-2014 |
20140102427 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - Provided is a control apparatus for an internal combustion engine, which can introduce external EGR gas during a cold condition, while favorably suppressing an occurrence of condensed water from the EGR gas. | 04-17-2014 |
20140102428 | CONDENSATE ACCUMULATION MODEL FOR AN ENGINE HEAT EXCHANGER - Embodiments for controlling condensate in an engine heat exchanger are disclosed. In one example, a method for an engine comprises increasing exhaust gas recirculation (EGR) flow responsive to condensation in an EGR cooler. In this way, condensate in the EGR cooler may be controlled via modulation of EGR flow. | 04-17-2014 |
20140109884 | AUTOMOTIVE ENGINE COOLANT AND HEATING SYSTEM - Engine coolant heating systems and methods that improve waste heat recovery. The systems and methods include a piped connection between the outlet of an exhaust gas recirculation cooler and the main exhaust pipe leading to the vehicle's tailpipe. The systems and methods also include at least one additional valve in the exhaust stream for directing the flow of exhaust appropriately given specific driving conditions. | 04-24-2014 |
20140116404 | Power System Comprising A Condensation Injection System - Disclosed is a power system comprising a condensation injection system positioned downstream of an EGR cooler. The condensation injection system comprises a condensation pump and a condensation injector. The condensation injector is positioned downstream of the condensation pump. The condensation pump is configured to pump the condensation to the condensation injector, and the condensation injector is configured to inject the condensation into the intake gas, the intake gas being a combination of a fresh intake gas and a recirculated portion of an exhaust gas. | 05-01-2014 |
20140123965 | EXHAUST GAS COOLER - An exhaust gas cooler may include an outer housing and an inner housing having a heat exchanger insert arranged therein. The heat exchanger insert may include a plurality of pipes around which exhaust gas flows transversely in the inner housing and through at least some of which a coolant of a first cooling circuit flows. At least a portion of the outer housing may be cooled by a second cooling circuit. The second cooling circuit may be separate from the first cooling circuit. | 05-08-2014 |
20140144413 | Engine Including Exhaust Gas Recirculation Injection System - An engine assembly according to the principles of the present disclosure includes an engine structure, an intake system, an exhaust system, and an exhaust gas recirculation (EGR) assembly. The engine structure defines cylinders having intake and exhaust ports. The intake system includes an intake manifold that provides air to the cylinders through the intake ports. The exhaust system includes an exhaust manifold in communication with the exhaust ports for expelling exhaust gas from the cylinders. The EGR system includes an EGR pipe, an EGR valve, an EGR reservoir, and an EGR injector. The EGR pipe extends from at least one of the exhaust system, the exhaust ports, and the cylinders to the EGR reservoir. The EGR valve regulates exhaust flow through the EGR pipe. The EGR injector is operable to deliver exhaust gas from the EGR reservoir directly to at least one of the intake ports and the cylinders. | 05-29-2014 |
20140150758 | EXHAUST GAS RECIRCULATION SYSTEM WITH CONDENSATE REMOVAL - A system for recirculating exhaust gas includes a cooling subsystem configured to cool the exhaust gas; a condensation removal subsystem; and a temperature adjustment subsystem. The cooling subsystem may include a first cooling component configured to cool the exhaust gas to a first intermediate temperature and a second cooling component configured to cool the exhaust gas to a temperature below the saturation temperature. The condensation removal subsystem may include a mist eliminator configured to remove condensate and particulate matter from the exhaust gas and a reheater where exhaust gas is reheated to above the saturation temperature. | 06-05-2014 |
20140182567 | EXHAUST GAS RECIRCULATION VALVE DEVICE FOR VEHICLE - An exhaust gas recirculation valve device for a vehicle includes a valve housing having an exhaust gas inlet port and an exhaust gas outlet port, a flap valve rotatably mounted on the valve housing to open and close the exhaust gas outlet port, and a valve shaft fitted to penetrate the flap valve and coupled to the flap valve by electron beam welding to rotate integrally with the flap valve. | 07-03-2014 |
20140190459 | ANTI-FREEZING DEVICE FOR EGR DEVICE - In an anti-freezing device for an EGR device | 07-10-2014 |
20140196699 | METHOD AND SYSTEM FOR VACUUM CONTROL - Methods and systems are provided for controlling and coordinating control of a post-catalyst exhaust throttle and an EGR valve to expedite catalyst heating. By closing both valves during an engine cold start, an elevated exhaust backpressure and increased heat rejection at an EGR cooler can be synergistically used to warm each of an engine and an exhaust catalyst. The valves may also be controlled to vary an amount of exhaust flowing through an exhaust venturi so as to meet engine vacuum needs while providing a desired amount of engine EGR. | 07-17-2014 |
20140196700 | HEAT EXCHANGER - Disclosed herein is a heat exchanger with a housing casing, a first base and a second base with openings, pipes as a first flow channel for conducting a first fluid, the ends thereof being arranged in or on the openings of the first and second bases, the pipes and the first and/or the second base are arranged within the housing so that a second flow channel for conducting a second fluid is designed between the housing and the pipes, a first inlet opening for the first fluid, a first outlet opening for the first fluid, a second inlet opening for the second fluid, a second outlet opening for the second fluid, a first diffusor for directing the first fluid into the pipes, a second diffuser for directing the first fluid out of the pipes, which heat exchanger should be simple and cost-effective to produce and ensure reliable operation. | 07-17-2014 |
20140196701 | METHOD FOR OPERATING AN EXHAUST GAS RECIRCULATION SYSTEM - A method is provided for operating an Exhaust Gas Recirculation (EGR) system of a thermal energy source, the EGR system includes, but is not limited to an EGR circuit and an EGR cooler, the EGR cooler connected in a heat exchanging relationship with an EGR coolant circuit equipped with an EGR coolant pump. The method includes, but is not limited to monitoring a parameter (T | 07-17-2014 |
20140209073 | EXHAUST SYSTEM HAVING PARALLEL EGR COOLERS - An exhaust system is disclosed for use with an engine. The exhaust system may have a first exhaust manifold associated with a first plurality of engine cylinders, and a second exhaust manifold associated with a second plurality of engine cylinders. The exhaust system may also have a first exhaust gas recirculation passage extending from the first exhaust manifold to the first plurality of engine cylinders, and a second exhaust gas recirculation passage extending from the first exhaust manifold to the second plurality of engine cylinders. The exhaust system may additionally have a first cooler located in fluid communication with the first exhaust gas recirculation passage, and a second cooler located in fluid communication with the second exhaust gas recirculation passage. | 07-31-2014 |
20140216423 | EXHAUST SYSTEM PART, EGR COOLER, AND METHOD OF NITRIDING EXHAUST SYSTEM PART - Disclosed is an exhaust system part having a high corrosion resistance, an EGR cooler using the exhaust system part, and a method of nitriding the exhaust system part. The exhaust system part made of a stainless steel and having an exhaust gas of an internal combustion engine flow therein, includes an upstream side end portion through which the exhaust gas is introduced, a downstream side end portion through which the exhaust gas is discharged, and a wall portion formed in an annular shape extending in the direction of the exhaust gas flow and disposed between the upstream side end portion and the downstream side end portion, in which a chromium oxide nitride film consisting of CrO | 08-07-2014 |
20140230800 | AIR TURBINE DRIVEN EGR PUMP FOR DIESEL ENGINES - A power plant is provided and may include an exhaust gas recirculation passage and a turbo machine having a first turbine rotationally coupled to a pump. The first turbine may include an expanded air passage. The pump may be arranged in the exhaust gas recirculation passage. A pre-cooler may be arranged in the expanded air passage and in the exhaust gas recirculation passage upstream from the pump. | 08-21-2014 |
20140245999 | METHOD FOR COOLING COMPRESSED CHARGE AIR OF A TURBOCHARGED INTERNAL COMBUSTION ENGINE - The invention relates to a method for cooling compressed charge air of a turbocharged internal combustion engine, wherein starting from a compression temperature the compressed charge air is cooled in a first cooling device to a first lowered temperature and in a subsequent second cooling device is cooled to a second lowered temperature which is lower than the first lowered temperature, wherein after the second cooling device the compressed charge air is cooled in a third cooling device to a third lowered temperature which is lower than the second lowered temperature, wherein the cooling or the compressed charge air in the third cooling device is effected only intermittently during operation of the internal combustion engine. | 09-04-2014 |
20140251289 | Intake Housing Including A Heat Exchanger - The invention concerns an intake housing | 09-11-2014 |
20140283798 | EXHAUST GAS RECIRCULATION DEVICE - An EGR passage recirculates a part of exhaust gas from an exhaust passage to an intake passage. An EGR valve opens and closes the EGR passage. An exhaust cooling passage includes an EGR cooler closer to the exhaust passage than the EGR valve. A bypass passage branches at an upstream of the exhaust cooling passage to bypass the EGR cooler and to extend toward a downstream of the exhaust cooling passage. In a bypass open mode, a bypass switching valve opens both the exhaust cooling passage and the bypass passage. In a bypass close mode, the bypass switching valve opens the exhaust cooling passage and closes the bypass passage. In a cooler close mode, the bypass switching valve closes the exhaust cooling passage and opens the bypass passage. The bypass switching valve is set at the bypass open mode when the EGR valve is closed. | 09-25-2014 |
20140283799 | 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. | 09-25-2014 |
20140290631 | METHOD FOR LOCAL BOILING PROTECTION OF A HEAT EXCHANGER - Various methods and systems are provided for estimating a wall temperature in a heat exchanger and reducing the risk of boiling on a coolant side of the heat exchanger. In one embodiment, a method for an engine comprises estimating a wall temperature at a location in a heat exchanger and adjusting an engine operating parameter of an engine coupled to the heat exchanger based on the wall temperature. | 10-02-2014 |
20140299115 | EXHAUST GAS INLET STRUCTURE OF AN EXHAUST GAS RECIRCULATION COOLER - The present invention discloses an exhaust gas inlet structure of an exhaust gas recirculation (EGR) Cooler which includes a water shell, a gas inlet pipe, a bellow, an insulated pipe, an inlet chamber, a pre-cooling water chamber and a main board. The water shell is equipped with a water inlet pipe. Its main feature is the insulated pipe is placed within the bellow and connected with the gas inlet pipe at one end while the other end is suspended. The large-bore end of the inlet chamber is connected with the main board to form a gas inlet cavity while leaving a space to form a coolant channel between the joining part and the water shell. An external surface of a middle pipe body connects to the bellow to form a pre-cooling cavity connected to the coolant channel. The advantages of the present invention are as follow: newly-added pre-cooling water chamber reduces the wall temperature of the main board and the inlet chamber; newly-added supporting in the middle part of the insulated pipe improves the vibration-proof function of the insulated pipe; the special structure of the inlet chamber increases the ability of the axial displacement compensation. The above-mentioned improvement of the present invention significantly improves the reliability of the EGR cooler. | 10-09-2014 |
20140311466 | Coolant Inlet Structures for Heat Exchangers for Exhaust Gas Recirculation Systems - A heat exchanger for an exhaust gas recirculation system is provided, the heat exchanger including a tube core having a plurality of tubes extending from an upstream header of the tube core to a downstream header of the tube core and also having a plurality of coolant channels disposed between and separating the tubes, and a coolant inlet collar disposed about the tube core near the upstream header, the coolant inlet collar being comprised of at least two separately formed pieces that have been joined together. | 10-23-2014 |
20140318512 | EXHAUST GAS RECIRCULATION COOLER, SYSTEM, AND METHOD THEREOF - An exhaust gas recirculation (EGR) cooler for cooling exhaust gas includes at least one channel configured to allow the exhaust gas to flow through it, and a casing defining a cooling chamber around the at least one channel. The cooling chamber is configured to enable heat transfer between the exhaust gas and the coolant. The at least one channel has an interior surface and an exterior surface made of a first metal and a second metal, respectively, and configured to be in contact with the exhaust gas and the coolant, respectively. The second metal has a higher thermal conductivity than the first metal. The casing includes a coolant inlet and a coolant outlet configured to enable the coolant to enter and exit the cooling chamber, and an exhaust gas inlet and an exhaust gas outlet configured to enable the exhaust gas to enter and exit the at least one channel. | 10-30-2014 |
20140318513 | ENGINE ARRANGEMENT WITH CHARGE AIR COOLER AND EGR SYSTEM - An engine arrangement includes an engine, a charge air cooler connected to an engine inlet side of the engine, an air bypass for bypassing the charge air cooler, and including an EGR system connected between engine outlet side and an engine inlet side of the engine via one or more EGR lines. The air bypass enters the EGR system at an air-bypass port of an EGR line for mixing air with exhaust gas at the engine outlet side of the EGR system and/or upstream of an EGR cooler. An engine arrangement can also comprise an engine, a charge air cooler connected via an air line to an engine inlet side of the engine, an air bypass for bypassing the charge air cooler, and including an EGR system connected between an engine outlet side and an engine inlet side of the engine via one or more EGR lines. A control device is provided for controlling an engine inlet temperature of an air/exhaust gas mixture by controlling a ratio of cooled/uncooled air and/or cooled/uncooled exhaust gas in the air/exhaust gas mixture. | 10-30-2014 |
20140331978 | ENGINE SYSTEM HAVING DEDICATED DONOR CYLINDERS FOR EGR - An engine system for a machine is disclosed. The engine system may have a first intake manifold configured to distribute air into a first cylinder bank of an engine. The engine system may also have a second intake manifold configured to distribute air into a second cylinder bank of the engine. The engine system may have a first exhaust manifold configured to discharge exhaust from the first cylinder bank to the atmosphere. The engine system may further have a second exhaust manifold configured to discharge exhaust from non-donor cylinders in the second cylinder bank to the atmosphere. In addition, the engine system may have a third exhaust manifold separate from the first and second exhaust manifolds and configured to recirculate exhaust from donor cylinders in the second cylinder bank to the first and second intake manifolds. | 11-13-2014 |
20140338643 | SYSTEM AND METHOD FOR COOLING OF AN EXHAUST GAS RECIRCULATION UNIT - A heat exchanger for an exhaust gas recirculation unit is provided. A tube core of the heat exchanger includes a plurality of coolant channels disposed between a plurality of exhaust gas tubes extending from an upstream face to a downstream face. A coolant inlet line and a first coolant outlet line is disposed in a first quarter section of the tube core defined between the upstream face and one fourth of a length of the tube core adjacent to the upstream face. The first coolant outlet line is configured to draw at least a portion of a coolant flow across the upstream face and into the first coolant outlet line. Further, a second coolant outlet line is provided and is configured to discharge a remaining portion of the coolant flow from the plurality of coolant channels that was not drawn out of the first coolant outlet line. | 11-20-2014 |
20140345579 | ENGINE EXHAUST GAS RECIRCULATION COOLING SYSTEM WITH INTEGRATED LATENT HEAT STORAGE DEVICE - A method includes operating an internal combustion engine producing, as a byproduct, exhaust gases. The flow of exhaust gases are segregated into a first, relatively hot flow and a second, relatively cold flow. The second flow is directed to an intake of the internal combustion engine for combustion with fresh intake air and fuel. Heat energy from the first flow is stored in a latent heat storage device. Heat energy is released from the latent heat storage device to reduce cold start emissions during a subsequent operation of the internal combustion engine after a period of shutoff. | 11-27-2014 |
20140352670 | SYSTEM AND METHOD FOR OPERATING AN ENGINE - A method for operating an engine is disclosed. In one example, internal EGR is increased during conditions where cooled EGR is at a higher concentration during a decreasing engine load so that homogeneous compression ignition may be initiated at lower engine loads. | 12-04-2014 |
20140352671 | METHOD OF REBUILDING AN EGR COOLER - A method of rebuilding a salvaged EGR coolers is disclosed in which the existing heat exchanger elements are removed from the salvaged stock EGR cooler housing and replaced with a heat exchanger element made from a pair of heat exchanger tube sub-assemblies. Each of the heat exchanger tube sub-assemblies includes an end plate with a selected number of attached tubes and a selected number of bores, which are adapted to receive the ends of the tubes attached to the other tube sub-assembly. The tube sub-assemblies are mated together with the free ends of the tubes received into the bores of the opposite end plate. Exhaust fittings are then welded to the ends of the housing. | 12-04-2014 |
20140366854 | METHOD FOR OPERATING A DRIVE ASSEMBLY AND DRIVE ASSEMBLY - The present invention relates to a method for operating a drive assembly having a gasoline engine ( | 12-18-2014 |
20150020783 | INTERNAL COMBUSTION ENGINE - A second recirculation passage recirculates blow-by gas at an upstream section, which is upstream of an impeller of a turbocharger in an intake passage. A first passage branches and extends from a downstream section, which is downstream of the impeller in the intake passage. A second passage that forms part of the second recirculation passage connects the first passage and the upstream section to each other. A third passage, which is provided separately from the second passage, connects the first passage and the upstream section to each other. A change mechanism changes, in different manners, the flow rate of compressed gas recirculating to the upstream section through the second passage, and the flow rate of compressed gas recirculating to the upstream section through the third passage. | 01-22-2015 |
20150027419 | Exhaust gas cooler for an exhaust gas recirculation system, and an exhaust gas recirculation system with such an exhaust gas cooler - The invention relates to an exhaust gas cooler for an exhaust gas recirculation system, in particular of a motor vehicle, said exhaust gas recirculation system having a total cooling power (P | 01-29-2015 |
20150034056 | Heat Exchanger For Gases, In Particular For The Exhaust Gases Of An Engine - A heat exchanger ( | 02-05-2015 |
20150040875 | COOLING APPARATUS AND COOLING CONTROL METHOD FOR EGR GAS AND ENGINE OIL - A cooling apparatus for EGR gas and engine oil may include coolant lines through which coolant circulates, an EGR heat exchange part provided between the coolant lines, wherein the EGR gas circulates through the EGR heat exchange part so as to exchange heat with the coolant, a bypass part spaced apart from the EGR heat exchange part, wherein the EGR gas circulates through the bypass part, or bypasses the bypass part so as not to exchange heat with the EGR heat exchange part, an oil heat exchange part provided on the coolant lines and spaced apart from the EGR heat exchange part, wherein engine oil circulates through the oil heat exchange part so as to exchange heat with the coolant, and a control valve provided at an entrance side of the EGR heat exchange part so as to control circulation of the EGR gas into the oil heat exchange part. | 02-12-2015 |
20150047618 | METHODS AND SYSTEMS FOR EGR CONTROL - Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control. | 02-19-2015 |
20150047619 | EXHAUST GAS RADIATOR - An exhaust gas radiator for at least one of an exhaust gas system and an exhaust gas recirculation system of an internal combustion engine may include an exhaust gas path, which leads from an exhaust gas inlet to an exhaust gas outlet, and a coolant path, which is coupled in a heat-transferring manner to the exhaust gas path. The exhaust gas path may have an inlet region, which includes the exhaust gas inlet and has an inlet cooling capacity. The exhaust gas path may have downstream of the inlet region an intermediate region, which has an intermediate cooling capacity that is lower than the inlet cooling capacity. The exhaust gas path may have downstream of the intermediate region an outlet region, which includes the exhaust gas outlet and has an outlet cooling capacity that is greater than the intermediate cooling capacity. | 02-19-2015 |
20150053185 | MARINE ENGINE - A marine engine includes a first turbocharger, a first intercooler, a second turbocharger, a second intercooler, an oil filter, and a top cover. The first turbocharger and the second turbocharger supply air by using an exhaust gas. The first intercooler and the second intercooler cool gases having passed through the turbochargers, respectively. The top cover is a cover arranged in an upper region of the marine engine. These devices are arranged so as not to overlap one another when seen in the thickness direction of the top cover. | 02-26-2015 |
20150059715 | EXHAUST GAS RECIRCULATION COOLER MOUNT - An EGR cooler mount comprising an inlet port, an outlet port positioned downstream of the inlet port, and a leak off passage. The inlet port is configured to receive fuel, and the outlet port is configured to distribute the fuel to a fuel tank. The leak passage is positioned fluidly between the inlet port and the outlet port, and is positioned in the EGR cooler mount. | 03-05-2015 |
20150059716 | EGR COOLER AND EGR COOLER DEVICE USING THE SAME - An EGR cooler and an EGR cooler device includes a pre-cooler which is located at a central region at which a cooling water chamber of an EGR cooler housing, in which cooling water circulates, is divided into two spaces, and in which hot exhaust gas introduced from an exhaust system is discharged as primary-cooled exhaust gas via heat-exchange with the cooling water. Therefore, it may be possible to reduce costs by a decrease in number of EGR tubes via optimal primary cooling performance for the exhaust gas in the pre-cooler and particularly to relieve damage by a thermal load generated due to the hot exhaust gas by fully surrounding an inlet and an outlet of the pre-cooler with the circulating cooling water. | 03-05-2015 |
20150068502 | EXHAUST GAS RECIRCULATION COOLER AND SYSTEM - An exhaust gas recirculation (EGR) cooler for cooling exhaust gas via a coolant includes at least one channel having an inlet and an outlet, and a casing defining a cooling chamber for carrying the coolant around the at least one channel. The exhaust gas is flowable through the at least one channel from the inlet to the outlet. At least a portion of the at least one channel is variable between a fully compressed position and an uncompressed position. The casing includes a coolant inlet and a coolant outlet through which the coolant enters and exits the cooling chamber. The casing also includes an exhaust gas inlet from which the exhaust gas enters the at least one channel, and an exhaust gas outlet into which the exhaust gas exits the at least one channel. | 03-12-2015 |
20150075504 | EXHAUST GAS COOLING DEVICE - An exhaust gas cooling device, which cools exhaust gas from an internal combustion engine mounted on a vehicle through heat exchange between the exhaust gas and a coolant, includes: a plurality of tubes through which the exhaust gas flows; a tubular shell which houses the plurality of tubes and is configured to allow the coolant to flow therethrough; and a header plate disposed at an end portion in the shell to prevent the coolant from flowing out of the shell. The header plate includes support holes in which end portions of the plurality of the tubes are fitted and supported, and each of axial end faces of the plurality of tubes is located in the corresponding support hole at a position between both ends of the header plate in a thickness direction of the header plate. | 03-19-2015 |
20150075505 | DERATE STRATEGY FOR EGR COOLER PROTECTION - Methods and systems for controlling the conditions of a coolant for the cooler of an exhaust gas recirculation system are disclosed. The system determines coolant pressure at predetermined location of the cooler. The system also senses the actual temperature of the coolant at a predetermined location of the cooler. The system also determines a coolant boiling temperature at the determined coolant pressure. Using the determined coolant pressure, the system may control engine operation so as to prevent coolant from reaching boiling in the cooler. An engine derate power factor may be determined to control the amount of fuel delivered to the engine, such as reducing the amount of fuel delivered through the fuel injectors. The amount of delivered fuel may be derated until an adjusted coolant temperature falls a predetermined amount below the coolant boiling temperature. | 03-19-2015 |
20150090236 | EGR FLOW METERING SYSTEMS AND METHODS - Methods and systems for metering at least one EGR valve to a position determined to pass a desired EGR flow for a given set of engine characteristics. The methods include determining the EGR valve position based on pipe flow characteristics, or determining the EGR valve position based on pipe flow characteristics when differential pressure across the EGR valve is less than a pressure threshold. | 04-02-2015 |
20150096543 | RANKINE CYCLE WASTE HEAT RECOVERY SYSTEM AND METHOD WITH IMPROVED EGR TEMPERATURE CONTROL - A waste heat recovery (WHR) system and method for regulating exhaust gas recirculation (EGR) cooling is described. More particularly, a Rankine cycle WHR system and method is described, including an arrangement to improve the precision of EGR cooling for engine efficiency improvement and thermal management. | 04-09-2015 |
20150101579 | FLUID CIRCULATION VALVE, NOTABLY FOR A MOTOR VEHICLE, AND THERMAL CONDITIONING DEVICE COMPRISING SUCH A VALVE - The invention relates to a fluid circulation valve, notably for a motor vehicle, comprising a body ( | 04-16-2015 |
20150107566 | EXHAUST GAS RECIRCULATION DEVICE - An exhaust gas recirculation (EGR) device includes an EGR passage, a cooling medium circuit, an EGR cooler, and an intercooler. A part of exhaust gas flowing through an exhaust passage of an internal combustion engine is recirculated as EGR gas into an intake passage of the engine through the EGR passage. A cooling medium flows through the cooling medium circuit. The EGR cooler performs a heat exchange between EGR gas flowing through the EGR passage and the cooling medium flowing through the cooling medium circuit so as to cool EGR gas. The intercooler is disposed at the intake passage on a downstream side of a merging part between the intake passage and the EGR passage in a flow direction of intake air, and performs a heat exchange between intake air including EGR gas and flowing through the intake passage, and the cooling medium flowing through the cooling medium circuit so as to cool intake air. The cooling medium circuit is configured independently from a coolant circuit through which coolant for cooling the engine flows. The cooling medium circuit is configured such that at least at time of low-load operation of the engine, the cooling medium which has passed through the EGR cooler flows into the intercooler. | 04-23-2015 |
20150114366 | SYSTEMS AND METHODS FOR IMPLEMENTING AN OPEN THERMODYNAMIC CYCLE FOR EXTRACTING ENERGY FROM A GAS - Systems and method for extracting energy from a gas are disclosed herein. In particular, systems and methods for implementing a series of thermodynamic transformations by means of which it is possible to extract useful work from a gas carrying thermal energy due its thermodynamic state are disclosed. An example system for extracting energy from a cycle gas can include an expander for expanding the cycle gas, a heat exchanger in fluid connection with the expander for cooling the expanded cycle gas while maintaining the expanded cycle gas at an approximately constant pressure, and a compressor in fluid connection with the heat exchanger for compressing the cooled cycle gas. | 04-30-2015 |
20150128916 | DETERMINING EXHAUST GAS RECIRCULATION COOLER FOULING USING DPOV SENSOR - Methods and systems are provided for determining degradation of an EGR cooler based on differential pressure across the EGR cooler during EGR flow. In one example, the differential pressure across the EGR cooler may be based on differential pressure across an EGR valve and a pressure downstream from the EGR valve with and without EGR flow. The pressure downstream from the EGR valve may be a compressor inlet pressure or an intake manifold pressure in a low pressure EGR system or high pressure EGR system, respectively. | 05-14-2015 |
20150136093 | Engine Boosting System and Method Therefor - The engine boosting system includes an engine having an intake manifold, exhaust manifold and exhaust gas recirculation loop fluidly connected therebetween. A boost circuit including a storage vessel is in fluid communication with the intake manifold and with the exhaust manifold. A throttle is located downstream of the exhaust manifold, the exhaust gas recirculation loop, and the boost circuit. A connection between the boost circuit and the intake manifold is independent of a connection between the exhaust gas recirculation loop and the intake manifold. | 05-21-2015 |
20150136094 | EGR GAS COOLING DEVICE FOR HYBRID VEHICLE AND EGR GAS COOLING METHOD FOR HYBRID VEHICLE - An EGR gas cooling device for hybrid vehicle provided in an EGR system for refluxing a part of exhaust gas of an engine as EGR gas to an intake passage and configured to cool the EGR gas in a hybrid vehicle including the engine and a motor as travel drive sources of the vehicle includes an EGR cooler for cooling the EGR gas using a refrigerant flowing in a strong electric cooling circuit for cooling the motor. | 05-21-2015 |
20150136095 | Oxygen sensor and internal combustion engine comprising said sensor - A sensor for detecting the oxygen content in the intake tract of an internal combustion engine includes: a sensor element having a measurement electrode; a metal cap that surrounds the sensor element; a heat dissipation element that connects the sensor element and the metal cap; and a bracket for the sensor element. The bracket is in the form of a plastic housing configured to accommodate evaluation electronics for the sensor element. | 05-21-2015 |
20150292444 | EGR HEAT EXCHANGER WITH CONTINUOUS DEAERATION - An exhaust gas recirculation (EGR) heat exchange unit having an integrated heat exchange chamber and an integrated deaeration chamber is provided. A coolant opening and a deaeration opening each form direct passageways from the heat exchange chamber to the deaeration chamber. The heat exchange unit is configured to cool exhaust gas flowing through an exhaust gas transfer passage with coolant flowing within the heat exchange chamber and around the transfer passage. The heat exchange unit is configured to be mounted relative to an engine at an incline such that the deaeration opening is configured to evacuate gas from the heat exchange chamber to the deaeration chamber and the flow of coolant into the deaeration chamber through the coolant opening is configured to route the evacuated gas out of the deaeration chamber via the coolant outlet. | 10-15-2015 |
20150308387 | GAS HEAT EXCHANGER, IN PARTICULAR FOR EXHAUST GASES OF AN ENGINE - A gas heat exchanger for the exhaust gases of an engine including a plurality of parallel tubes that are arranged inside a casing and through which flow the gases to be cooled by heat exchange with a coolant, the coolant inlet and outlet conduits being each arranged at an opposing extremity of the casing on a single side of said casing, is disclosed. Each tube has a protuberance opposing the direction of the gases, it being possible to assemble said tubes by stacking them such that the protuberances of the respective tubes form a barrier, in the form of a deflector, intended to create a predetermined pathway guaranteeing an appropriate distribution of the coolant flow from the inlet of same to the outlet of same about the tubes and along the entire length of the exchanger. The distribution of the coolant flow passing through same is improved without the need for conventional deflectors. | 10-29-2015 |
20150308388 | Built-In Exhaust Gas Maintenance Device - The present invention relates to a gas management device suitable for being installed at the outlet o fa particle filter or of a catalytic converter. This device is characterized by a very compact configuration having at least the heat exchanger for an EGR (Exhaust Gas Recirculation) system, particularly suitable for a low pressure system, and an exhaust gas discharge pipe which is part of the exhaust line. According to one embodiment, the device also allows integrating a bypass valve for the EGR heat exchanger. According to another embodiment, the device allows integrating a heat recovery unit participating in the EGR system. According to another embodiment, the device also allows both including a bypass and including a heat recovery unit. The degree of integration with the particle filter of the catalytic converter is maintained in all cases. | 10-29-2015 |
20150316006 | EGR Cooling System - An exhaust gas cooler and method of cooling are provided. The exhaust gas cooler includes an inlet and outlet manifold and respectively including inlet and outlet openings and respectively positioned at a first and second end of the cooler. The exhaust gas cooler includes a plurality of conduits coupled to the inlet and outlet manifold and also includes at least one side wall coupled to the inlet and outlet manifold around the plurality of conduits, such that the plurality of conduits are disposed in a region between the at least one side wall and the inlet and outlet manifold. The at least one sidewall includes a first coolant inlet opening and a first coolant outlet opening each adjacent a first end of the exhaust gas cooler, a second coolant inlet opening, and a second coolant outlet opening. The exhaust gas cooler includes a bypass conduit positioned outside of the region. | 11-05-2015 |
20150322898 | HEAT EXCHANGER FOR EXHAUST GAS RECIRCULATION UNIT - A heat exchanger for an exhaust gas recirculation unit is provided. The heat exchanger includes a tube core having a plurality of exhaust gas tubes and at least one coolant channel disposed between the plurality of exhaust gas tubes. The heat exchanger further includes a flow conditioner fluidly coupled to the heat exchanger. The flow conditioner includes an inlet port and an outlet port. The outlet port is fluidly coupled to the plurality of exhaust gas tubes. The flow conditioner further includes a plate extending at least partially between the inlet port and the outlet port. The plate is configured to control the exhaust gas flow from the inlet port to the outlet port. | 11-12-2015 |
20150337772 | EXHAUST GAS RECIRCULATION APPARATUS AND CONTROL METHOD THEREFOR - An exhaust gas recirculation apparatus including an engine; a suction line; an exhaust line; a post-processing unit which is disposed in the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line which guides a part of the exhaust gas, which is guided to the exhaust line, to the suction line; a second circulation line which guides a part of the exhaust gas, which is guided to a downstream side of the post-processing unit, to the suction line; and a bypass line which branches off from an upstream side of the second circulation line, and merges with a downstream side of the second circulation line, wherein ammonia slip, which is discharged from the post-processing unit, is prevented from being guided to the suction line. | 11-26-2015 |
20150337773 | APPARATUS AND METHOD FOR SUPPLYING FUEL USING EGR COOLER - An apparatus for supplying fuel to a diesel engine provided with an EGR cooler may include a first supply line for introducing fuel supplied from a fuel tank to the EGR cooler through a low pressure pump, a second supply line for introducing the fuel that passes through the EGR cooler to a common rail through a high pressure pump, and a first bypass line for bypassing a part of the fuel that passes through the low pressure pump to a fuel mixing section formed on a front of the high pressure pump of the second supply line so as to be mixed with fuel that is cooled while passing through the EGR cooler. | 11-26-2015 |
20150354506 | INTEGRATED EXHAUST GAS MANAGEMENT DEVICE - The present invention relates to a device for managing gases suitable for being installed at the outlet of a particle filter or a catalytic converter. This device is characterized by a very compact configuration combining at least the heat exchanger for an EGR (Exhaust Gas Recirculation) system, particularly suitable for a low-pressure system, and an exhaust gas outlet pipe with a special configuration that is part of the exhaust line. The exhaust outlet incorporates a valve that allows using the heat exchanger of the EGR system as a heat recovery unit. | 12-10-2015 |
20150354507 | COOLANT CONTROL VALVE THAT SELECTIVELY SUPPLIES EGR COOLER WITH COOLANT - A coolant control valve that selectively supplies an EGR cooler with coolant may include a cylinder head having a first water jacket and a second water jacket, an EGR cooler that is disposed at one side of the cylinder head and is disposed on an EGR line that recirculates exhaust gas from an exhaust side to an intake side, a heater that is disposed at another side of the cylinder head and heats air through coolant that is supplied to the heater, and a coolant control valve that respectively controls coolant that is supplied from the first water jacket and the second water jacket, supplies the heater with the coolant, and selectively supplies the EGR cooler with the coolant depending on a temperature of the coolant. | 12-10-2015 |
20150354508 | GAS PIPE FOR EXHAUST GAS RECIRCULATION - A plurality of upper fins and a plurality of lower fins are each provided in an EGR passage so as to be adjacent to each other across a predetermined space in a direction perpendicular to an exhaust-gas flow direction. The upper fins and the lower fins are gradually narrowed in width toward their respective projection directions, so that both sides thereof in their width direction have inclined surfaces. A tilt angle of the inclined surfaces of the lower fins is made larger than a tilt angle of the inclined surfaces of the upper fins. | 12-10-2015 |
20150369179 | TEMPERATURE CONTROL APPARATUS FOR INTERCOOLER - Production of condensed water in an intercooler is suppressed. The apparatus comprises a high temperature system cooling water passage through which cooling water having a high temperature flows; a low temperature system cooling water passage which is a cooling water passage through which cooling water having a low temperature flows and which passes through at least the intercooler; two communication passages which communicate the high temperature system cooling water passage and the low temperature system cooling water passage, one of the communication passages through which the cooling water flows from the high temperature system cooling water passage toward the low temperature system cooling water passage, and the other through which the cooling water flows from the low temperature system cooling water passage toward the high temperature system cooling water passage; valves which are provided for the communication passages respectively; and a control unit which controls the valves provided for the communication passages respectively so that a temperature of the gas flowing out from the intercooler is higher than a dew point temperature. | 12-24-2015 |
20160010596 | COOLER | 01-14-2016 |
20160010597 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE | 01-14-2016 |
20160025043 | METHOD AND CONTROLLER OF EXHAUST GAS RECIRCULATION TO PROTECT VALVE STICK - A method of controlling an exhaust gas recirculation (EGR) system for preventing a valve from sticking may include performing, by an ECU, an EGR Cooler By-Pass Valve (ECB V/V) normal mode for operating an ECB V/V under a low temperature and low load condition to prevent fouling of an EGR cooler and overcooling of an EGR gas, when an EGR is controlled with a vehicle driven, and performing, by the ECU, an ECB V/V self-cleaning mode for operating an ECB V/V in consideration of an engine condition when the OFF-state of the ECB V/V is determined and an ECB V/V sticking detection mode for detecting sticking of the ECB V/V in continuous performing, cold performing, and in-driving performing in consideration of an opening amount of the ECB V/V when a fixed state of the ECB V/V is determined. | 01-28-2016 |
20160025045 | INTEGRATED SHORT PATH EQUAL DISTRIBUTION EGR SYSTEM - In one embodiment, an exhaust gas recirculation (EGR) system for an engine is disclosed. The EGR system includes an EGR cooler that cools recirculated engine exhaust gas and is mounted between a valve cover and valve train of a cylinder head in the engine. | 01-28-2016 |
20160025047 | EXHAUST GAS VALVE DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas valve device for an internal combustion engine includes, an actor, an actor housing, a valve housing connected to the actor housing, an exhaust gas inlet, an exhaust gas outlet, a valve comprising a movement transmission member and a control body, and a coolant channel comprising a coolant inlet port and a coolant outlet port. The valve is configured to control a flow cross-section between the exhaust gas inlet and the exhaust gas outlet. The coolant channel is arranged to extend in the actor housing and in the valve housing. The coolant inlet port and the coolant outlet port are arranged on the actor housing. | 01-28-2016 |
20160040613 | Engine - In an engine, a controller is configured to fully close the opening of EGR valve when a cut condition is satisfied and variably control the opening when a cut release condition is satisfied. An operating zone is defined as a zone surrounded by a characteristic curve indicating a relationship between rotation speed and torque. The operating zone comprises a high operating zone containing an NTE zone, and a low operating zone that is set at a lower torque side and at a lower rotation speed side with respect to the high operating zone. The cut condition is that an operating condition specified by the rotation speed and the torque is kept within the low operating zone during a predetermined time or more. The cut release condition is that the operating condition falls within the high operating zone. | 02-11-2016 |
20160047340 | THERMAL ABATEMENT SYSTEMS - A thermal abatement system comprises an axial inlet, radial outlet supercharger. A main case comprises at least two rotor bores, an inlet plane and an outlet plane. The inlet plane is perpendicular to the outlet plane. An inlet wall comprises an inner surface. Two rotor mounting recesses are in the inner surface, and the inlet wall is parallel to the inlet plane. An outlet is in the outlet plane. An inlet is in the inlet plane. At least two rotors are configured to move air from the inlet to the outlet. The main case comprises at least two backflow ports. An intercooler is connected to receive air expelled from the supercharger, to cool the received air, and to expel the cooled air to the at least two back flow ports. | 02-18-2016 |
20160061150 | INTERCOOLER ASSEMBLY FOR VEHICLE - An intercooler assembly for a vehicle includes an intercooler, and a duct connected to a front side of the intercooler and guiding outside air to the intercooler. The duct is in surface-contact with an outer surface of the intercooler, at which the air flowing into the duct flows out to the intercooler. | 03-03-2016 |
20160069301 | METHOD AND SYSTEMS FOR EXHAUST GAS RECIRCULATION SYSTEM DIAGNOSIS - Various methods and systems are provided for diagnosing a condition of a component in an exhaust gas recirculation system. In one example, a method includes selectively routing exhaust from a first subset of engine cylinders to an exhaust passage via a first valve and to an intake passage via a second valve and determining a respective condition of each of the first valve and second valve based on a first exhaust pressure of the first subset of engine cylinders and a second exhaust pressure of a second subset of engine cylinders. | 03-10-2016 |
20160084204 | Exhaust Gas Recirculation System for an Internal Combustion Engine and Method for Operating Same - An exhaust gas recirculation (EGR) system includes an EGR duct configured to effect fluid communication between an exhaust duct and an intake duct of an internal combustion engine; a heat exchanger having a first flow passage and a second flow passage, the first flow passage being in fluid communication with the EGR duct, the second flow passage being configured to receive a heat transfer medium from a heat transfer medium source; an upstream purge valve in fluid communication with the second flow passage of the heat exchanger, and configured to effect selective fluid communication between a purge fluid source and the second flow passage of the heat exchanger; and a controller operatively coupled to the upstream purge valve. The controller is configured to purge the second flow passage of the heat exchanger by opening the upstream purge valve. | 03-24-2016 |
20160084205 | HEAT EXCHANGER - The invention relates to a heat exchanger, in particular exhaust-gas cooler or charge-air cooler, comprising a plate stack composed of multiple elongate plate pairs, wherein in each case two interconnected plates form a first fluid duct between them, and a second fluid duct is formed between two plate pairs, wherein the plates of a plate pair are of U-shaped form with a bottom and upturned side walls and lie against one another so as to delimit the first flow duct, wherein one of the plates of a plate pair has, on its end side, a tab which serves for beading over around the end side of the other plate, wherein the tab on the bottom of the plate is beaded over, and the beading-over of the tab also continues into the side walls of the plates. | 03-24-2016 |
20160084583 | HEAT EXCHANGER - The invention relates to a heat exchanger, in particular exhaust-gas cooler, having tubes of unipartite form or formed from two shell-like plates, which tubes form a first and a second fluid duct, wherein the respective fluid ducts are arranged adjacent to one another, wherein the first fluid duct is designed to be open at at least one of its ends for the inflow and/or outflow of the first fluid, wherein, at the ends, the tubes are, by way of an inward or outward step, designed such that the second fluid ducts are closed at the end side, wherein the step has a greater extent T in the tube longitudinal direction in the corner regions of the tube than between the corner regions. | 03-24-2016 |
20160097366 | VARIABLE IGNITION ENERGY MANAGEMENT - A method for energy ignition management of a spark-ignition engine includes receiving, by a controller, at least one ignition energy characteristic to affect control of at least one combustion cylinder. The method further includes controlling the at least one combustion cylinder via the controller. Controlling the at least one combustion cylinder via the controller includes adjusting the at least one ignition energy characteristic in response to at least one operating condition of the engine. The at least one ignition energy characteristic is a magnitude of one of a current or voltage of spark energy. | 04-07-2016 |
20160108861 | Engine Management System - An engine management system that maximizes the efficiency of internal combustion engines (gasoline or diesel) based on the performance demanded of the engine and the environmental conditions that the engine is operating in. The engine intake and cooling systems are arranged such that that the engine intake air temperature and pressure and coolant temperature are continuously optimized to provide reduced emissions on start-up and increased efficiency and performance in all environmental conditions. | 04-21-2016 |
20160108862 | HYDROGEN RICH EGR SYSTEM AND METHOD - A system and method for hydrogen rich exhaust gas recirculation are provided. The system includes the addition of a supplemental injector injecting additional natural gas beyond the stoichiometric point into one of the engine cylinders. After combustion, the exhaust of the cylinder remains high in hydrogen. The exhaust is then routed through a hydrogen rich exhaust path to an exhaust gas recirculation mixer where is it mixed with natural gas and exhaust gas from the other cylinders. The resultant mixture is then routed to all of the cylinders of the engine for improved combustion due to the additional hydrogen. | 04-21-2016 |
20160115910 | EXHAUST SYSTEM AND METHODS FOR EFFICIENT EXHAUST HEAT RECOVERY - Systems and methods are described for heating engine coolant by transferring heat from an exhaust flow to the engine coolant via a heat exchanger positioned in an exhaust gas heat recovery line coupled to the EGR cooler responsive to an EGR valve position. In one particular example, a branching pathway of the EGR cooler is positioned downstream of the EGR cooler and allows exhaust gas to be routed to the EGR cooler and/or exhaust gas heat exchanger based on the EGR valve position, which allows for control of the amount of heat transferred to the engine coolant as well as exhaust gas recirculation into the engine. With this arrangement, a cabin temperature of a hybrid vehicle may be increased as quickly as possible under cold start conditions to allow the engine to be quickly turned off after heating the vehicle cabin. | 04-28-2016 |
20160131088 | METHOD AND SYSTEM FOR EGR CONTROL - Methods and systems are provided for engine dilution control via direct injection of water from a reservoir. In one example, a method may include during select conditions, direct injecting fluid from a reservoir into an EGR cooler. This approach can be used to supplement EGR flow during situations that decrease EGR flow. | 05-12-2016 |
20160138530 | ENGINE SYSTEM HAVING COOLANT CONTROL VALVE - An engine system having a coolant control valve may include a cylinder block configured with cylinders, a cylinder head sitting on top of the cylinder block and comprising exhaust ports and intake ports configured to lead to the cylinders, an Exhaust Gas Recirculation (EGR) cooler, a heater core, an oil cooler, or a radiator through which coolant circulates, and a coolant control valve configured to control a coolant supplied to the cylinder block, a coolant discharged from the cylinder block through the cylinder head, and a coolant supplied to the EGR cooler, the heater core, the oil cooler, or the radiator. | 05-19-2016 |
20160138531 | INTEGRATED COOLING SYSTEM AND CONTROL METHOD THEREOF - An integrated cooling system includes a temperature adjustment chamber including an intercooler configured to exchange heat between a coolant and compressed air supplied to an engine, an exhaust gas recirculation (EGR) cooler configured to exchange heat between the coolant and an exhaust gas recirculating to the engine, and an oil cooler configured to exchange heat between the coolant and an engine oil. A coolant line is configured to supply coolant to the temperature adjustment chamber and transmit the coolant discharged from the temperature adjustment chamber to the engine. | 05-19-2016 |
20160146162 | Exhaust Gas Heat Exchanger and Method - A heat exchanger that transfers heat from an exhaust gas flow to a liquid coolant includes a first heat exchange section and a second heat exchange section located adjacent the first heat exchange section. The first heat exchange section is located within a first housing that at least partially encloses a first fluid volume. The second heat exchange section is located within a second housing that at least partially encloses a second fluid volume. A first plurality of heat exchange tubes traverses the first heat exchange section, and a second plurality of heat exchange tubes traverses the second heat exchange section. An exhaust gas flow path of the heat exchanger includes the first fluid volume and the interiors of the second plurality of heat exchange tubes. A coolant flow path of the heat exchanger includes the second fluid volume and the interiors of the first plurality of heat exchange tubes. | 05-26-2016 |
20160146163 | CONDENSED WATER TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE - The condensed water treatment device increases the EGR quantity (S | 05-26-2016 |
20160160803 | TWO-PASS AIR-TO-AIR AFTERCOOLER - An air-to-air aftercooler including a first core assembly configured to receive intake air and cool the intake air. The first core assembly can include a first heat exchange portion configured to cool the intake air, a first inlet configured to receive the intake air, a second heat exchange portion configured to cool the intake air, a second inlet configured to receive the intake air, and a first common tank joining the first heat exchange portion and the second heat exchange portion and configured to output the intake air. The air-to-air aftercooler can also include a second core assembly configured to receive the intake air from the first common tank, and further cool the intake air. | 06-09-2016 |
20160160810 | CONTROL METHOD FOR EXHAUST GAS RECIRCULATION SYSTEM - A method for controlling an EGR system includes determining whether diagnosis conditions for an EGR cooler are satisfied while the EGR system operates. The EGR system is turned off when the diagnosis conditions for the EGR cooler are satisfied and a retard amount of ignition timing is larger than a first reference value. The EGR cooler is diagnosed base on a comparison result of the retard amount of the ignition timing and a second reference value while the EGR system is off. | 06-09-2016 |
20160160812 | INTEGRATED EGR VALVE HOUSING - An integrated exhaust gas recirculation (EGR) valve housing includes: a temperature control passage configured to include a first cooling channel which connects a water jacket formed in an engine to a radiator and a second cooling channel which is branched from the first cooling channel and extends to an EGR cooler cooling re-circulated exhaust gas; and an auxiliary cooling passage configured to guide cooling water introduced into the second cooling channel to the EGR valve housing, whereby it is possible to easily dispose the EGR valve housing in the engine compartment by integrating the parts through which the cooling water is discharged from the engine with the cooling water channel connected to the EGR valve housing. | 06-09-2016 |
20160169166 | STRUCTURE OF ENGINE SYSTEM | 06-16-2016 |
20160169168 | EXHAUST SYSTEM STATE DETECTION DEVICE | 06-16-2016 |
20160177880 | EXHAUST GAS RECIRCULATION ADAPTER | 06-23-2016 |
20160177881 | ACTIVE AIRPATH BYPASS SYSTEM | 06-23-2016 |
20160177888 | EXHAUST GAS HEAT EXCHANGER | 06-23-2016 |
20160186693 | Exhaust Gas Recirculation Mixer - An exhaust gas recirculation system may include a header located at an end of a cooler, and a mixer for mixing exhaust gases and intake air within the header. The mixer may include a passage for receiving exhaust gases and an inlet for receiving intake air. The exhaust gases and intake air may collide at a substantially perpendicular angle within the mixer, and the mixer may further include an outlet for emitting mixed exhaust gases and intake air. | 06-30-2016 |
20160186704 | EXHAUST GAS RECIRCULATION SYSTEM FOR ENGINE - Disclosed is an exhaust gas recirculation system provided in an engine to recirculate, to an intake manifold, a part of exhaust gas discharged from an engine body, as EGR gas. The exhaust gas recirculation system comprises: an in-head gas passage formed in a cylinder head to allow the EGR gas to pass through a position adjacent to a first coolant jacket formed in the cylinder head to allow coolant to flow therethrough an EGR cooler configured to cool the EGR gas after passing through the cylinder head via the in-head gas passage and before being introduced into the intake manifold; and a relay pipe configured to guide the EGR gas just after passing through the cylinder head, to the EGR cooler. The relay pipe is provided with a second coolant jacket for allowing coolant to flow therethrough so as to cool the EGR gas being flowing inside the relay pipe. | 06-30-2016 |
20160252055 | SELF CLEANING EXHAUST GAS RECIRCULATION COOLER SYSTEM FOR LOCOMOTIVE ENGINES | 09-01-2016 |
20160377034 | COMPLEX HEAT EXCHANGER - A complex heat exchanger includes: a lower plate including a coolant inlet and a coolant outlet, an EGR gas inlet and an EGR gas outlet, and an oil inlet and an oil outlet. The inlets allow coolant, EGR gas, and oil to be introduced through the inlets, respectively, and the outlets allow the coolant, EGR gas, and oil to be discharged through them, respectively. The complex heat exchanger further includes a heat exchanging part stacked on top of the lower plate, and the heat exchanging part includes a coolant passage, an EGR gas passage, and an oil passage, which are separately formed in an interior of the heating exchanging part, allowing the coolant, the EGR gas, and the oil to separately flow while heating and cooling each other. An upper plate of the complex heat exchanger is coupled on top of the heat exchanging part. | 12-29-2016 |
20170234271 | EXHAUST GAS RECIRCULATION SYSTEM | 08-17-2017 |
20170234272 | EXHAUST GAS RECIRCULATION SYSTEM | 08-17-2017 |
20170234274 | DEDICATED EXHAUST GAS RECIRCULATION SYSTEM | 08-17-2017 |
20180023520 | COMBINATION STRUCTURE OF EGR COOLER | 01-25-2018 |
20180023521 | EGR COOLER FOR VEHICLE | 01-25-2018 |
20190145358 | EXHAUST GAS RECIRCULATION COOLER | 05-16-2019 |
20190145359 | METHODS AND SYSTEMS FOR ENERGY RECOVERY VIA AN EGR COOLER | 05-16-2019 |