Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Exhaust gas used with the combustible mixture (e.g., emission control Exhaust Gas Recirculation (EGR) valve)

Subclass of:

123 - Internal-combustion engines

123434000 - CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
123568120 Exhaust gas cooled during recirculation 119
123568210 Having electrically actuated control means 63
123568170 Having specific exhaust gas outlet structure at intake manifold 30
123568160 With electrical means for fail-safe, backup, or malfunction detecting of EGR system 16
123568200 Plural EGR valves in the recirculation passage 10
123568190 EGR valve position controlled only in relationship to intake throttle valve position 9
123568140 Internal exhaust gas recirculation (e.g., exhaust gas retained in the combustion chamber) 8
123568150 Having exhaust gas mixed with a constituent before entry into intake manifold 6
123568130 Having recirculation path formed entirely in the cylinder block or head 4
20090145410Breathing for an internal combustion engine - In one aspect of the disclosure an internal combustion engine may be provided that may include a combustion chamber and a piston reciprocally moveable in the combustion chamber. The combustion chamber may have an intake port and a dual function port. The dual function port may be connected to an exhaust system and to an intake system. A method may be provided including opening a fluid connection between the intake system and the combustion chamber via the intake port as well as the dual function port during at least a part of an intake stroke of the piston. Instead of, or in addition, the method may include opening a fluid connection between the exhaust system and the combustion chamber via the dual function port during at least a part of the intake stroke of the piston.06-11-2009
20100288248HYBRID ENGINE - A hybrid engine that uses a primary internal combustion engine portion and a secondary external combustion engine portion. In a preferred arrangement, the secondary external combustion engine portion operates as a reciprocating steam engine. The heated exhaust gases of the internal combustion engine portion are used to generate steam, and the steam is used to power the steam engine portion adding the steam engine's power output to that of the internal combustion engine. The thermal efficiency of the hybrid engine may be higher than the thermal efficiency of an internal combustion engine without use of the exhaust gas heat. The hybrid engine uses a configuration in which steam is generated directly in the steam engine and a mechanical link between the internal combustion engine portion and the steam engine portion with the result that the hybrid engine is simple and inexpensive to construct and maintain.11-18-2010
20130199505CYLINDER HEAD AND INTERNAL COMBUSTION ENGINE EQUIPPED THEREWITH - A cylinder head and internal combustion engine outfitted therewith, in which the cylinder head has a plurality of media passages, at least one of which is for conducting a corrosive medium. Each media passage has a media contact surface for conducting a medium. The cylinder head has a longer service life due to the media contact surface of the at least one media passage for conducting the corrosive medium being formed of a corrosion-resistant material.08-08-2013
20130206121ENGINE - An engine includes an EGR apparatus which refluxes a portion of exhaust gas from an exhaust manifold to an intake manifold as EGR gas. A differential pressure sensor detects a differential pressure between intake pressure of the intake manifold and exhaust pressure in the exhaust manifold. The differential pressure sensor is mounted on a head cover which covers an upper portion of a cylinder head. An intake pressure taking-out passage which is in communication with the intake manifold is formed in the cylinder head. An intake pressure introducing passage which is connected to the differential pressure sensor is formed in the head cover. The intake pressure taking-out passage and the intake pressure introducing passage are in communication with each other.08-15-2013
123568290 Vacuum actuator control of EGR valve 3
20090301447Exhaust Gas Recirculation Valve - A system and method for controlling a multiple cylinder internal combustion engine include a mechanically operated exhaust gas recirculation valve having a spring-biased pintle with a surface area sized to generate a spring-opposing force to open a valve chamber entrance when an exhaust pressure differential exceeds a first threshold to allow exhaust gas to flow toward an intake and to close a valve chamber exit spaced from the chamber entrance to block exhaust gas flowing to the intake when the pressure differential exceeds a second threshold. The valve operates to limit or block external EGR flow at low load such as during starting and idle as well as at wide-open throttle while metering EGR flow for mid-to-high loads.12-10-2009
20090320811Exhaust Gas Recirculation Control System - An exhaust gas recirculation system has an EGR valve disposed in an EGR duct connecting an engine intake and exhaust. A diaphragm of said EGR valve is actuated via vacuum from the engine intake, the application of the vacuum is controlled via an electronic valve regulator (EVR). The EVR is provided a fixed signal to cause it to be fully open when it is determined that the engine is about to encounter a condition in which there is insufficient vacuum to open the EGR valve. The EVR is provided a variable signal during other operating conditions in which there is sufficient vacuum to open the EGR valve.12-31-2009
20100175671Method and Device for Improving a Recirculation of Exhaust Gas in an Internal Combustion Engine - A method and apparatus for improving recirculation of exhaust gas in an internal combustion engine having an exhaust-gas turbocharger, in particular in a diesel engine, determines operation parameters of the engine in order to determine exhaust gas pressures, supplies compressed air in a controlled manner based on the exhaust gas pressures in order to generate a vacuum in a supply section of a gas supply device, thereby inducting a partial quantity of exhaust gas from the engine into the supply section using the vacuum, and recirculates the partial quantity of exhaust gas into the engine via an induction line connected to the gas supply device.07-15-2010
Entries
DocumentTitleDate
20130025576MULTIFUNCTION VALVE - One embodiment includes product comprising a valve housing constructed and arranged to have a first fluid port, a second fluid port, and a third fluid port secured therein; a first valve disposed in one of the first fluid port, second fluid port or third fluid port and constructed and arranged to block or control flow of fluid there through, the first valve having a first face; a valve actuator shaft extending into one of the first fluid port, second fluid port, or third fluid port and operatively connected to the first valve; a second valve connected to the first valve by a stem portion different from the shaft, the second valve having a first face being constructed and arranged to be rotatable with the first valve and the valve shaft so that the shaft is rotatable to move the first valve between closed and open positions, the second valve is moved to a position that will block at least a portion of another of the first valve port, second valve port, or third valve port to restrict the flow of fluid there through, and wherein the first valve having a first face arranged at an angle with respect a first face of the second valve. Another embodiment includes a first valve connected to a second valve, and wherein the second valve includes a visor portion.01-31-2013
20130042840DEVICE FOR EXHAUST GAS RECIRCULATION FOR AN INTERNAL COMBUSTION ENGINE - A device for exhaust-gas recirculation for an internal combustion engine is provided that includes a flange for attaching to a cylinder head of the internal combustion engine. Combustion air flows from a passage region of the flange directly into at least one intake duct of a cylinder, and an inlet for an inflow of recirculated exhaust gas into the combustion air is provided. The inlet for the inflow of the recirculated exhaust gas is arranged on the flange.02-21-2013
20100071674METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method of operating an internal combustion engine which has a fresh-air line, an exhaust-gas line, and an exhaust gas recirculation system, an exhaust gas flow is fed from the exhaust gas recirculation line of the exhaust gas recirculation system to the fresh-air line. The exhaust gas flow is hereby divided by a gas flow divider during flow from the exhaust gas recirculation line to the fresh-air line through actuation of a control element such that a first flow portion flows back to the exhaust gas recirculation line and a second flow portion flows to a continuing section of the exhaust-gas line. The exhaust gas recirculation system with the gas flow divider is operated substantially in the absence of a back pressure.03-25-2010
20130206119CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - An internal combustion engine executes EGR and controls the air-fuel ratio based on a detected oxygen concentration in the exhaust. An electronic control unit controls the engine such that the detected value for the air-fuel ratio upstream from a front catalyst provided in an exhaust pipe reaches a value indicating a leaner air-fuel ratio when EGR is being executed than when not executed. Therefore, the controlled air-fuel ratio follows shifting of a window to the leaner side in response to execution of EGR, so that the air-fuel ratio is controlled more precisely in response to the execution of EGR.08-15-2013
20130037009Exhaust Manifold - An exhaust manifold maintains the EGR ratio constant irrespective of a change in shape of the exhaust manifold and includes exhaust gas inlet sections connected to the exhaust ports of respective cylinders of the engine; a main pipe section configured so that exhaust gas entering from the exhaust gas inlet sections is collected inside the main pipe section; an EGR gas taking-out section for extracting, as EGR gas, a part of the exhaust gas; and an exhaust gas discharge section for discharging the exhaust gas. The main pipe section has formed thereon a curved section provided between the exhaust gas inlet sections and curved in a shape protruding to the side opposite the exhaust gas inlet sections. The curved section has a recess which is formed by causing a portion of the outer peripheral surface of the curved section to be recessed toward the inside of the main pipe section.02-14-2013
20100006074EGR VALVE ASSEMBLY - The invention relates to an exhaust-gas-recirculation valve (01-14-2010
20120222659METHODS AND SYSTEMS FOR AN ENGINE - Various methods and systems are provided for operating an exhaust gas recirculation engine having a plurality of exhaust gas donor cylinders and a plurality of non-donor cylinders. One example method includes firing each of the engine cylinders in a cylinder firing order, including firing at least one of the non-donor cylinders between every donor cylinder firing of the engine cycle.09-06-2012
20080295812Anti-coking bushing assembly for an exhaust recirculation control valve - An anti-coking bushing assembly for sealing a pintle shaft of an EGR control valve, comprising a bushing carrier disposed in the valve body and supportive of close-fitting pintle shaft bushing liners formed of a polyimide such as Vespel. The bushing carrier and bushing liners are installed into a carbon shield extending into the exhaust flow space within the valve. Within the carbon shield, between the gas flow space and the bushing carrier, is a ring seal on the pintle shaft and a gas expansion chamber to cool exhaust gas escaping along the pintle shaft, allowing contaminants in the exhaust gas to precipitate in the gas expansion chamber. The carbon shield, ring seal, bushing carrier, and bushing liners are conveniently pre-assembled as an anti-coking bushing assembly for subsequent installation into a valve body during final valve assembly.12-04-2008
20110120429RECLAIM INTERNAL COMBUSTION ENGINE - An internal combustion engine is provided with at least two reclaim cylinders for each two fuel burning cylinders. A plurality of routing members, such as hoses, are provided to route exhaust gas from the fuel burning cylinders to the reclaim cylinders.05-26-2011
20110155110VALVE BODY ASSEMBLY - The invention concerns an assembly of a valve body (A) and a seal (06-30-2011
20080271720Valve actuation assembly - A valve actuation assembly includes a housing and a vane connected to a shaft. The vane is at least partially disposed within the housing. The valve actuation assembly further includes a valve assembly connected to the housing and a feedback device connected to at least one of the vane and the shaft. The feedback device is configured to apply a feedback force to the valve assembly.11-06-2008
20100031937EGR Device For Engine - It is intended to provide an EGR device for an engine in which a cooling structure such as an EGR cooler is not required and which reduces Nox contained in the exhaust gas in the whole operation areas, so as to correspond to recent exhaust gas regulation. An EGR device 02-11-2010
20110214648PASSIVE RE-INDUCTION APPARATUS, SYSTEM, AND METHOD FOR RECIRCULATING EXHAUST GAS IN GASOLINE AND DIESEL ENGINES - An exhaust gas re-induction apparatus, which receives exhaust gas from an exhaust system of an engine, and passively recirculates a portion of the gas to an air inlet of the engine. An exchange of heat occurs between the exhaust gas, the various components and chambers of the re-induction apparatus, and the environment. Fuel efficiency is increased and harmful toxins and emissions are reduced. A system includes the re-induction apparatus and a recirculation conduit, which connects the re-induction apparatus to the air inlet of the engine before the vacuum, optionally via a water separator or soot filter device depending on engine type. The amount of exhaust gas recirculated can essentially depend on the operating speed of the engine and the size dimensions of the apparatus.09-08-2011
20120024269FUEL BASED ENGINE OPERATION CONTROL - Methods are provided for operating an engine with a variable fuel blend in a cylinder, where the variable fuel blend varies a peak achievable engine torque for a given operating condition. One example method comprises selectively operating an engine actuator that affects engine torque and engine fuel economy at the given operating condition, and extending operation of the actuator to higher engine torques as a peak engine torque for the given operating condition increases.02-02-2012
20120024268Exhaust Gas Recirculation (EGR) Apparatus - An Exhaust Gas Recirculation (EGR) apparatus for recirculating engine exhaust gas comprising a valve member disposed in an exhaust gas recirculation passage of an engine, the valve member movable between an open position and a closed position to control the flow of the exhaust gas through the exhaust gas recirculation passage, one or more bleeders to enable flow of exhaust gas through the exhaust gas recirculation passage when the valve member is in the closed position.02-02-2012
20080276914Method for operating an internal combustion engine having exhaust gas recirculation - In a method for operating an internal combustion engine having exhaust gas recirculation, air is supplied to at least one combustion chamber via an intake manifold at least partially closable with the aid of a final control element, and a part of the exhaust gases flowing into an exhaust pipe is conducted via an EGR channel, which is at least partially closable with the aid of an EGR valve unit, into an area of the intake manifold, which lies between the final control element and the combustion chamber. A first variable, which characterizes the mass flow of the gas conducted through the EGR channel, is ascertained from a set of state variables of the internal combustion engine, which apply for an operating state in which the engine is in overrun operation and the final control element is essentially closed.11-13-2008
20090283076INTAKE APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust gas guide member is provided to an airflow control valve varying an opening area of an intake passage. The exhaust gas guide member forms an exhaust gas passage which introduces the exhaust gas flowing from the exhaust gas introducing portion into the intake pipe toward an opposite end of the airflow control valve relative to the valve shaft. Thereby, the exhaust gas flows together with an intake air flow of high velocity generated by the airflow control valve so that a tumble flow can be generated in a combustion chamber of the internal combustion engine.11-19-2009
20110265772EJECTOR TYPE EGR MIXER - A radial-mixing exhaust gas recirculation mixer is disclosed having an air supply passage having a convergent portion. An exhaust gas recirculation passage within the convergent portion includes a nozzle having a terminal end. A mixing tube is arranged downstream from the air supply passage and at least a portion of the exhaust gas recirculation passage. A mixing element is disposed in the mixing tube. In one example, a divergent portion is arranged downstream adjoining the mixing tube to increase the pressure of the mixture after the mixing tube. In one example, the exhaust gas recirculation mixer is arranged within an engine such that the air supply passage is in fluid communication with an intake manifold. The exhaust gas recirculation passage is in fluid communication with an exhaust manifold to recirculate a portion of exhaust gas to the intake manifold.11-03-2011
20090266344Stratified Charge Gasoline Direct Injection Systems Using Exhaust Gas Recirculation - An aspect of the present disclosure relates to a method and system for reducing emissions and improving knock-tolerance in an engine. Air, including exhaust gas present at levels greater than 20% by total air mass, may be introduced into a combustion chamber having a volume including a piston and a cylinder head. A first amount of fuel and a second amount of fuel may be directly injected into the combustion chamber at various points during the cycle, wherein the ratio of the air, including the exhaust gas, to the first and second amounts of fuel is 14.0:1 to 15.0:1. The first and second amounts of fuel may then be ignited. An electronic control unit may be utilized to time the injections and control the introduction of exhaust gas.10-29-2009
20080308079Exhaust Gas Recycling Device Comprising a Flow Regulating and Selectively Connecting Valve - The invention concerns an exhaust gas recycling device comprising a cooled path (12-18-2008
20090050120EXHAUST GAS RECIRCULATION DEVICE - The invention relates to an exhaust gas recirculation device (02-26-2009
20090194079EXHAUST GAS RECIRCULATION DEVICE OF INTERNAL COMBUSTION ENGINE, AND CONTROL METHOD THEREOF - An exhaust gas recirculation device includes a turbocharger (08-06-2009
20090241918ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD - A multi-cylinder engine includes an EGR mechanism for introducing exhaust gas into intake air, and is capable of a partial cylinder operation in which combustion in a part of the cylinders is halted. The multi-cylinder engine includes an EGR rate control unit for setting an introduction rate at which the exhaust gas is introduced into the intake air to be lower in a first partial cylinder operating state in which the ignition intervals are unequal, than in a second partial cylinder operating state, in which ignition intervals among a plurality of operating cylinders are equal.10-01-2009
20110139132EXHAUST GAS RECIRCULATION VALVE THRUST COLLAR - An EGR valve includes a flap is attached to a shaft and is rotatable to control exhaust gas flow through passage. The flap includes sealing ring for sealing against valve seat. A stepped diameter or collar on the shaft is disposed between first and second bearings to fix an axial position of the flap within the passage and relative to the valve seat. The collar fixes the axial position of the shaft to reduce axial movement of the flap and sealing ring relative to the valve seat.06-16-2011
20090314264Method of Controlling Valve Timing of Diesel Engine - In a diesel engine equipped with an injector 12-24-2009
20100242927SEAL RING FOR EXHAUST GAS RECIRCULATION SYSTEM - An ring seal assembly includes a ring and a seal located within the ring. The ring has a proximal end including a major lip, a distal end including a minor lip, and a seal contacting region between the major lip and the minor lip. Additionally, the ring including an inner surface defining a central bore. Within the seal contacting region, the central bore has a radius that decreases along a direction extending from the minor lip to the major lip. The seal has a ring contacting outer portion and a shaft contacting inner portion. The ring contacting outer portion is shaped to be complementary to the inner surface of the seal contacting region of the ring. The shaft contacting inner portion is configured to contact a shaft placed within the central bore of the ring.09-30-2010
20100139630PARTICULATE FILTER SYSTEM FOR VEHICLE AND METHOD OF CONTROLLING THE SAME - A particulate filter (PF) system for a vehicle is equipped with a bypass air line branching off from a throttle body so as to be able to smoothly regenerate a PF regardless of operation of an engine. The PF system includes an exhaust manifold into which exhaust gas flows from an engine, a bypass line connected to the exhaust manifold, an exhaust gas recirculation valve installed on the bypass line, and blocking or passing a flow of air of the bypass line, and a particulate filter installed on the exhaust manifold to collect and remove particulate matter.06-10-2010
20110056466WORKING GAS CIRCULATION ENGINE - A combustion chamber to which a reactant and a working gas whose specific heat ratio is higher than that of air are supplied and in which the working gas can expand following a reaction of the reactant, a circulation path capable of re-supplying the working gas into the combustion chamber by causing the working gas to circulate from an exhaust side to a suction side of the combustion chamber, supplying means that supplies the reactant, a concentration detection means capable of detecting a concentration of the reactant in the circulation path, and a supply control means that sets at least a first supply rate of the reactant by the supplying means in a time for starting based on the concentration of the reactant detected by the concentration detection means before a start of supplying of the reactant by the supplying means are included and so proper starting can be assured.03-10-2011
20100294252EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust pipe is connected to an intake branch pipe downstream of a throttle valve by an EGR passage. An EGR control valve that controls an EGR gas amount is arranged in the EGR passage. An EGR catalyst is arranged in the EGR passage downstream of the EGR control valve. An ozone supply apparatus is provided which supplies ozone to oxidize and remove particulate matter. An ozone supply end of the ozone supply apparatus is connected to the EGR passage upstream of the EGR catalyst. If an EGR gas supply operation is being performed and an EGR catalyst temperature is within a set temperature range that is set beforehand, an ozone supply operation is performed. If the EGR gas supply operation is not being performed or the EGR catalyst temperature is outside of the set temperature range, the ozone supply operation is prohibited from being performed.11-25-2010
20100313858COLD START GAS COMPONENT RETENTION SYSTEM IN EGR CIRCUIT WITH RECIRCULATED GAS CONTROL - Methods and systems are provided for managing exhaust gases from an internal combustion engine. One example exhaust system may include an EGR line configured to route a selected amount of exhaust gases from an exhaust passage of the engine toward an intake passage of the engine. A gas component reduction element may be located on the EGR line, and may be configured to reduce a quantity of one or more selected components from the selected amount of exhaust gases. A treated exhaust line may be coupled with the EGR line, and may be configured to route a first portion of the selected amount of the exhaust gases from the gas component reduction element to pass into the intake passage of the engine, and to allow a second portion of the selected amount of the exhaust gases to the atmosphere.12-16-2010
20110000470CONTROLLING EXHAUST GAS FLOW DIVIDED BETWEEN TURBOCHARGING AND EXHAUST GAS RECIRCULATING - A method of controlling exhaust gas flow in an internal combustion engine system, and products and systems using same.01-06-2011
20100037871INTERNAL COMBUSTION ENGINE - The present invention relates to an internal combustion engine 02-18-2010
20100065026EXHAUST GAS RECIRCULATION VALVE - In an EGR valve provided in an exhaust gas recirculation passage for recirculating the exhaust gas of an engine, a filter 03-18-2010
20110100341METHOD AND ARRANGEMENT FOR EXHAUST-GAS RECIRCULATION IN AN INTERNAL COMBUSTION ENGINE - A system and method are disclosed for providing exhaust-gas recirculation in an internal combustion engine that has an exhaust-gas turbocharger. The exhaust gas to be recirculated is collected from the exhaust line downstream of a turbine of the turbocharger, passed through a condensate separator, and supplied into the intake line upstream of the compressor. The condensate is filtered, collected in a reservoir, and pumped to an injection device coupled to the engine intake at a location downstream of the compressor.05-05-2011
20110146635PASSIVE RE-INDUCTION APPARATUS, SYSTEM, AND METHOD FOR RECIRCULATING EXHAUST GAS IN GASOLINE AND DIESEL ENGINES - An exhaust gas re-induction apparatus includes conduits and an outer housing, which receive exhaust gas from an exhaust system of an engine, and passively recirculate a portion of the gas to an air inlet of the engine while transferring another portion of the gas through orifices in the apparatus and via a return conduit to the exhaust manifold. An exchange of heat occurs between the exhaust gas, the various components and chambers of the re-induction apparatus, and the environment. Fuel efficiency is increased and harmful toxins and emissions are reduced. A system includes the re-induction apparatus and a recirculation conduit, which connects the re-induction apparatus to the air inlet of the engine before the vacuum, via a water separator or soot filter device depending on engine type. The amount of exhaust gas recirculated can essentially depend on the operating speed of the engine and the size dimensions of the apparatus.06-23-2011
20110108012INTERNAL COMBUSTION ENGINE AND WORKING CYCLE - An internal combustion engine (ICE) system (including methods and apparatuses) for managing combustion charge densities, temperatures, pressures and turbulence in order to produce a true mastery within the combustion chamber in order to increase fuel economy, power, torque and engine life while minimizing polluting emissions and noxious odors.05-12-2011
20110114067ENGINE INCLUDING VALVE LIFT ASSEMBLY FOR INTERNAL EGR CONTROL - An engine assembly may include a first exhaust valve lift assembly, a first exhaust valve, and a first camshaft. The first exhaust valve lift assembly may be operable in first and second operating modes. The first exhaust valve may be engaged with the first exhaust valve lift assembly and may be in communication with an engine combustion chamber. The first camshaft may include a first exhaust lobe engaged with the first exhaust valve lift assembly and defining a profile including a first exhaust region and a first exhaust gas recirculation (EGR) region. The first exhaust valve may remain closed when the first EGR region engages the first exhaust valve lift assembly during the first operating mode and may be opened when the first EGR region engages the first exhaust valve lift assembly during the second operating mode to provide exhaust gas flow into the combustion chamber during an intake stroke.05-19-2011
20110132336Discharging Stored EGR in Boosted Engine System - A method for controlling an engine with exhaust gas recirculation is provided. The method comprises directing EGR from exhaust downstream of an exhaust-aftertreatment catalyst to mix with fresh air upstream of an intake compressor and upstream of a throttle valve, and, in response to increased throttling by the throttle valve, discharging the mixed EGR and fresh air from downstream of the intake compressor to the exhaust downstream of the exhaust-aftertreatment catalyst.06-09-2011
20110259305METHODS AND SYSTEMS FOR EXHAUST GAS MIXING - A method of operating an engine system is described in which a back-pressure valve of a low pressure EGR system can be modulated at a lower frequency during an EGR operation, and at a higher frequency when additional exhaust gas sensing is requested. Back-pressure valve modulation can therefore be used to promote exhaust gas mixing while providing EGR. Exhaust gas constituents in the mixed exhaust gas can then be sensed with higher accuracy by downstream exhaust gas sensors.10-27-2011
20100065027EXHAUST GAS RECIRCULATION VALVE - An inner surface of an exhaust gas passage 03-18-2010
20100024787APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING EXHAUST EMISSIONS USING A PRE-FILTER - Various embodiments of an apparatus, system, and method are disclosed for improving the tracking bandwidth of an air handling system of an internal combustion engine. For example, one embodiment of an apparatus includes an intake charge module configured to determine a desired air intake flow rate into the combustion chamber based at least partially on a desired oxygen concentration in the combustion chamber. The apparatus also includes an EGR system module configured to determine a desired EGR gas flow rate into the combustion chamber based at least partially on the desired oxygen concentration in the combustion chamber. Additionally, the apparatus includes a pre-filter module configured to modify the desired air intake flow rate and the desired EGR gas flow rate based at least partially on predetermined transient response characteristics of the air handling system. The desired air intake flow rate is achievable by commanding a fresh air regulator to achieve the modified air intake flow rate and the desired EGR gas flow rate is achievable by commanding an EGR regulator to achieve the modified EGR gas flow rate.02-04-2010
20120097138ENGINE ASSEMBLY INCLUDING ROTARY ENGINE PROVIDING EXHAUST GAS RECIRCULATION TO PRIMARY ENGINE - An engine assembly may include a rotary engine and a reciprocating engine. The rotary engine may include a first engine structure defining a rotor housing, a rotor located within the rotor housing and cooperating with the first engine structure to define a first combustion chamber and a first exhaust port defined by the first engine structure and in communication with the first combustion chamber. The reciprocating engine may include a second engine structure defining a cylinder bore and a piston disposed within the cylinder bore and cooperating with the second engine structure to define a second combustion chamber in communication with the first exhaust port.04-26-2012
20110315128DIESEL ENGINE FOR VEHICLE - A diesel engine body is provided with a geometric compression ratio ε within a range of 12:1 to 15:1. The engine body has an intake valve for opening and closing an intake passage of a cylinder, an exhaust valve for opening and closing an exhaust passage of the cylinder, and an exhaust gas re-circulation passage communicating with the intake and exhaust passages and for partially re-circulating exhaust to the intake passage. During low engine load and rotation speed conditions, the exhaust valve is opened during an intake stroke, and the intake passage is choked. The exhaust valve is closed before the intake valve in the later stage of the intake stroke. An opening area S12-29-2011
20120042856EGR EQUIPPED DIESEL ENGINES AND LUBRICATING OIL COMPOSITIONS - Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines, particularly heavy duty diesel engines, equipped with EGR systems, particularly EGR systems operating in a condensing mode, can be ameliorated by addition of an alkylated phenothiazine compound.02-23-2012
20110155109EXHAUST GAS RECIRCULATION DEVICE OF ENGINE - An exhaust gas recirculation device of an engine (06-30-2011
20120204844Dedicated EGR Control Strategy For Improved EGR Distribution And Engine Performance - The present disclosure relates to methods, apparatuses and systems to manage exhaust gas expelled from cylinders of an internal combustion engine. An exemplary system may comprise at least one cylinder of the engine configured to operate as a dedicated exhaust gas recirculation (EGR) cylinder, and wherein substantially all exhaust gas expelled from the dedicated EGR cylinder is recirculated to an intake system of the engine. In one embodiment, the system may include a flow restrictor configured and arranged to restrict a flow of the recirculated exhaust gas to the dedicated EGR cylinder without restricting a flow of the recirculated exhaust gas to the remaining cylinders of the engine. In another embodiment, exhaust gas may be expelled from the dedicated EGR cylinder in pulsations, and the intake system may be configured to reduce an amplitude of the pulsations of the exhaust gas expelled from the dedicated EGR cylinder.08-16-2012
20120012087FUEL COMPOSITION - A fuel composition having a boiling range of between 95 to 440 degrees Fahrenheit wherein the fuel composition has (a) a total sum of n-paraffins and naphthenes content of at least 22 volume percent and (b) a RON of about 93 or less, wherein the fuel is employed in an advanced combustion engine.01-19-2012
20110048388HEAT ACCUMULATION ELEMENT - The main body of the heat accumulation element has a honeycomb structure, and fluid passages where a fluid circulates and heat accumulating medium portions where a medium for storing heat is enclosed are formed. Specifically, the heat accumulation element has partition walls, and one opening portion and the other opening portion of each of the predetermined cells of a honeycomb structure having a large number of cells partitioned and formed to function as fluid passages are plugged and fired to form plugged cells. A heat accumulating medium is provided in the plugged cells. Open cells neither plugged nor fired serve as fluid passages with the plugged cells plugged and fired serving as heat accumulating medium portions, and the fluid circulating through the open cells and the heat accumulating medium in the plugged cells exchange heat.03-03-2011
20090025697FOUR-CYCLE ENGINE - An average pressure P01-29-2009
20110094481EXHAUST GAS RECIRCULATION VALVE DEVICE - In an exhaust gas recirculation valve device, a sealing member 04-28-2011
20110088670EGR VALVE DEVICE - An EGR valve device includes a housing having an exhaust gas passage formed inside, a support shaft slidably supported within the housing through a bearing, a valve disposed on the support shaft to open and close the exhaust gas passage, an urging member for urging the support shaft in a direction to close the valve, a valve seat, insert-cast integral with the housing, for closing the exhaust gas passage by abutting against the valve, and an actuator for driving the support shaft in a direction to open the valve, wherein a plurality of recesses or projections are provided axisymmetrically or uniformly in the peripheral portion of the valve seat to be insert-cast.04-21-2011
20120118275TRANSIENT CONTROL STRATEGY IN SPARK-ASSISTED HCCI COMBUSTION MODE - A method for controlling a multi-cylinder direct-injection internal combustion engine includes establishing an external exhaust gas recirculation valve from a present position to a target position to achieve a target exhaust gas recirculation, and synchronizing combustion initiation timing with actual exhaust gas recirculation as actual exhaust gas recirculation changes from a first exhaust gas recirculation value corresponding to the present position of the external exhaust gas recirculation valve to a second exhaust gas recirculation value corresponding to the target position of the external exhaust gas recirculation valve.05-17-2012
20100206274LOW PRESSURE EGR APPARATUS - A converting mechanism is provided between an EGR control valve driven by an actuator and an intake-air valve for generating negative pressure, so that the intake-air valve is also driven by the actuator. The converting mechanism has a cam plate rotated together with the EGR control valve and an arm rotated together with the intake-air valve. A cam groove formed in the cam plate is engaged with a driving pin of the arm. The intake-air valve is held at its maximum valve opening position, when the EGR control valve is rotated in a first angular range, while the intake-air valve is rotated from the valve opening position to a maximum valve closing position when the EGR control valve is rotated in a second angular range.08-19-2010
20120132184EGR CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is to suppress the dispersion of EGR gas amount between cylinders when the stuck open state arises in an EGR valve in an EGR apparatus for an internal combustion engine in which an EGR passage is branched on an intake system side into a plurality of EGR branch pipes, and the respective EGR branch pipes are connected respectively to intake branch pipes provided for the respective cylinders. In the present invention, if the EGR valve is stuck open, the exhaust pressure is reduced in an exhaust system of the internal combustion engine, while suppressing an amount of decrease in a driving force of a vehicle which carries the internal combustion engine within an allowable range.05-31-2012
20120132183HIGH CETANE RENEWABLE FUELS - A method for reducing the emissions of a diesel engine using a RHE-diesel fuel.05-31-2012
20120312283LOW PRESSURE EGR SYSTEM AND CONTROL METHOD THEREOF - A control method for a low pressure exhaust gas recirculation (LP-EGR) system may include measuring an engine speed and load, setting a target pressure difference between a downstream side and an upstream side of a LP-EGR valve according to the measured engine speed and load, measuring a present pressure difference between the downstream and upstream sides of the LP-EGR valve, comparing the present pressure difference with the target pressure difference, and preventing a reverse flow of a recirculated exhaust gas by adjusting an opening rate of the LP-EGR valve to alter a recirculated exhaust gas amount when the present pressure difference is smaller than the target pressure difference. The LP-EGR system for preventing reverse flow of a recirculated exhaust gas may include an air intake line, an exhaust line, a LP-EGR line, a LP-EGR valve, pressure sensors and a control portion.12-13-2012
20110180049FRESH AIR SYSTEM - A dual path fresh air system, having a first air supply path, the first path supplies air to at least one first cylinder set; a second air supply path, the second path supplies air to at least on second cylinder set; a first exhaust gas recirculation inlet fluidly connected to the first path to introduce recirculated exhaust gas into the first path; a second exhaust gas recirculation inlet fluidly connected to the second path to introduce recirculated exhaust gas into the second path; a first valve member, which is arranged upstream of the first exhaust gas recirculation inlet in the first path, wherein the first valve member controls fluid flowing through a cross section of the first path; and a second valve member which is arranged upstream of the second exhaust gas recirculation inlet in the second path, for controlling fluid flowing through a cross section of the second path.07-28-2011
20120167861VALVE OPERATING SYSTEM FOR INTERNAL COMBUSTION ENGINE - A valve operating system for an internal combustion engine, which includes a decompression cam member (07-05-2012
20100051000METHOD AND DEVICE FOR MONITORING AN EXHAUST GAS RECIRCULATION SYSTEM - A method for the diagnosis of an exhaust gas recirculation system in an internal combustion engine, including providing a pressure difference reading, which gives a pressure difference in an air supply section of the internal combustion engine or a pressure difference over the exhaust gas recirculation system; determining a pressure difference reference value as a function of one or more operating variables of the internal combustion engine; and detecting a fault in the exhaust gas recirculation system as a function of the pressure difference reading and of the pressure difference reference value.03-04-2010
20100050999EXHAUST GAS RECIRCULATION SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME - In an exhaust gas recirculation system for an internal combustion engine, which includes a turbocharger; a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; and a low-pressure EGR valve, first, the opening amount of the high-pressure EGR valve is controlled in a feedback manner, and, then, the opening amount of a low-pressure EGR valve is controlled in a feedback manner in a transitional operation period in which the operation mode of the internal combustion engine is changing. In this way, the intake air amount is promptly adjusted to the target intake air amount without causing hunting.03-04-2010
20090020105EXHAUST-GAS RECIRCULATION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - Proposed is an exhaust-gas recirculation device comprising a distributor element (01-22-2009
20120227713WORKING GAS CIRCULATION ENGINE - The working gas circulation engine includes a circulation route capable of circulating gas containing the working gas from an exhaust side to an intake side of a combustion chamber and resupplying to the combustion chamber and provided with a removing device to remove a product generated with a reaction from the circulating gas, a supplying device capable of supplying plural kinds of reactant gas to the combustion chamber or the circulation route, a pressure detecting device capable of detecting pressure in the circulation route, and a control unit that controls supply amount of at least one kind of the reactant gas to be supplied from the supplying device.09-13-2012
20120325184APPARATUS, SYSTEM, AND METHOD FOR DETECTING ENGINE FLUID CONSTITUENTS - A system for detecting engine fluid constituents includes an engine having a sample channel having a conduit for a working engine fluid. The system includes an electromagnetic (EM) source that emits EM radiation through a first metal tube, where the EM radiation is EM energy at a wavelength of interest. The system further includes an EM detector that receives a remainder radiation through a second metal tube, the remainder radiation including the remaining EM radiation after passing through the sample channel. The system includes a controller that determines a composition indicator signal representative of an amount of a constituent in the working engine fluid in response to a strength of the remainder radiation, and determines a concentration of a component of interest according to the composition indicator signal.12-27-2012
20120325183EGR VALVE - A lip seal is placed between a housing and a valve shaft and adjacent to a bearing of the shaft. A deposit-guard plug is placed between the housing and the shaft and adjacent to the lip seal. A first end of the lip seal is placed adjacent to a first end of the bearing. A first end of the plug is placed adjacent to a second end and a lip portion of the lip seal. A second end of the plug is placed to face a passage. A first distance from the first end of the bearing to the leading end of the lip portion of the lip seal and a second distance from the second end of the plug to the leading end of the lip portion of the lip seal are set to be longer than a maximum stroke of the shaft in stroke movement.12-27-2012
20100229841NITROGEN-ENRICHED GAS SUPPLYING DEVICE FOR INTERNAL COMBUSTION ENGINE - A nitrogen-enriched gas supplying device includes a bypass passage and a gas separating membrane, so as to supply nitrogen-enriched gas to an internal combustion engine. The bypass passage introduces a part of exhaust gas from an exhaust passage of the internal combustion engine into an intake passage of the internal combustion engine. The gas separating membrane is arranged in the bypass passage. The gas separating membrane is configured to separate carbon dioxide from exhaust gas introduced into the bypass passage.09-16-2010
20120090583EGR VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINES - An EGR valve assembly is provided for an Internal Combustion Engine. The valve assembly includes, but is not limited to a duct having an inlet and an outlet. A portion of the duct is configured with an open section that defines a seat for a valve housing, the valve housing having a passage that leads into the duct and a valve flap for opening and closing the passage, and an engaging portion configured to seal the open section of the duct.04-19-2012
20120090582EXHAUST SYSTEM AND METHOD FOR MITIGATING DEGRADATION OF COMPONENTS OF A TURBOCHARGED ENGINE WITH EXHAUST GAS RECIRCULATION - A system and method for controlling an engine is described. In one example, an actuator is adjusted to reduce the possibility of degradation of an engine component. The method may provide increase engine component operational life so as to improve engine emissions during the life cycle of the engine.04-19-2012
20120090581EXHAUST GAS MIXING SYSTEM - In one aspect a mixing tube is provided for the introduction of a flow of exhaust gas into a flow of intake air of an internal combustion engine. The mixing tube comprises an opening, tube section, and a plurality of tube ports. The opening is configured to receive the flow of exhaust gas. The tube section is fluidly connected to the opening and extends into the flow of intake air. The tube ports on the tube section are located in low static pressure regions that are determined as intake air passes around the tube section.04-19-2012
20120285427EXHAUST MANIFOLD ASSEMBLY WITH INTEGRATED EXHAUST GAS RECIRCULATION BYPASS - An exhaust manifold assembly includes a first manifold member and a second manifold member. The first manifold member includes a first group of runners joining to define an exhaust treatment outlet, and a second group of runners. The second manifold member includes a primary passage and an inlet runner in fluid communication with each runner of the second group of runners and the primary passage. A bypass control valve opens fluid communication between the primary passage of the second manifold member and the exhaust treatment outlet to allow the internal combustion engine to operate in a normal mode where all exhaust gas is discharged through the exhaust treatment outlet, and closes fluid communication between the primary passage of the second manifold member and the exhaust treatment outlet to direct exhaust gas from the second group of runners to an intake manifold to establish a dedicated EGR system.11-15-2012
20120132182HIGH CETANE PETROLEUM FUELS - A high-efficiency diesel fuel and method of combustion that reduces emissions. The diesel engine can operate in pre-mixed charge compression ignition (PCCI) combustion. The method can involve injecting high-efficiency diesel fuel at from −8 to 0 degrees After Top Dead Center (ATDC), combusting the fuel, and operating the engine with an exhaust gas recirculation (EGR) of from 20 to 60%.05-31-2012
20130008416CONTROL SYSTEM FOR GASOLINE ENGINE - When a specific condition requiring a rise in exhaust gas temperature is satisfied, a required fuel amount to be injected from an injector (01-10-2013
20130019846CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine is provided that can favorably determine a shut-off failure of an EGR valve under a high intake pressure condition in which an intake pressure becomes higher than an exhaust pressure. In a case where the high intake pressure condition and a transition condition are established at a time of a shut-off instruction on shutting off the EGR valve, it is determined that a shut-off failure of the EGR valve has occurred if an actual measurement value of the air-fuel ratio of exhaust gas detected by a main air-fuel ratio sensor is a value that is leaner by an amount equal to or greater than a predetermined lean determination value relative to a target value of the air-fuel ratio of the exhaust gas.01-24-2013
20130167811EGR FLOW SENSOR FOR AN ENGINE - A method of operating an engine is disclosed. The method may include discharging exhaust gas from at least one combustion chamber of the engine. The method may also include recirculating at least a portion of the exhaust gas to the at least one combustion chamber through an EGR system, including directing at least a portion of the exhaust gas through an EGR duct. Additionally, the method may include sensing pressure in a portion of the EGR duct by directing the pressure to a first pressure sensor via a first sensor passage having a first end connected to a portion of the EGR duct and a second end connected to the first pressure sensor, while maintaining a temperature of gas in the first sensor passage adjacent the second end at a bulk temperature of at least about 75 percent of a bulk temperature of gas in the first sensor passage at the first end.07-04-2013
20130167812EXHAUST GAS RECIRCULATION VALVE - An exhaust gas recirculation valve includes an exhaust passage having an exhaust gas inlet and an exhaust gas outlet aligned on the same line, an EGR passage branched from the exhaust passage, a shaft attached rotatably at a branching point between the exhaust passage and the EGR passage, and an elliptically shaped butterfly valve rotating integrally with the shaft to open/close the exhaust passage and the EGR passage.07-04-2013
20130174816ENGINE USING SPLIT FLOW EXHAUST SYSTEM AND METHODS - An engine system utilizing a split flow exhaust system for distributing different portions of exhaust gases to a turbocharger and to an EGR system and methods of controlling the flow of the exhaust gases are provided. The split flow exhaust system includes a high-pressure exhaust valve in fluid communication with a turbine of a turbocharger and a high-pressure exhaust manifold interposed therebetween. Also, a low-pressure exhaust valve is in fluid communication with an intake system and a low-pressure exhaust manifold is interposed therebetween. Initial exhaust gases expelled from the engine are delivered to the turbine while secondary exhaust gases expelled from the engine are delivered as EGR to the intake system. The flow to the turbine and the intake system is controlled using the high-pressure exhaust valves and low-pressure exhaust valves of the engine rather than an EGR valve.07-11-2013
20120247439SYSTEMS AND METHODS FOR CONTROLLING ENGINE COMBUSTION STABILITY - A control system for an engine includes first and second modules. The first module determines an oxygen concentration within an intake manifold of the engine. The second module regulates a flow of exhaust gas recirculation (EGR) into the intake manifold based on the determined oxygen concentration. In a homogeneous charge compression ignition (HCCI) engine, the second module may also disable an HCCI combustion mode of the HCCI engine based on the oxygen concentration.10-04-2012
20130092135METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method for operating an internal combustion engine, a measured NO04-18-2013
20130133632EGR RATE DETERMINATION METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - The present invention makes it possible to accurately determine an EGR rate from an in-cylinder pressure. An EGR rate determination method for an internal combustion engine according to the present invention, a combustion period is calculated by using in-cylinder pressure data measured by an in-cylinder pressure sensor. An in-cylinder flame velocity is then calculated from the combustion period. Next, in accordance with prepared data indicative of the influence of an engine speed on the flame velocity, a portion of the flame velocity calculated from the combustion period that is affected by the engine speed is eliminated. Eventually, a current EGR rate is determined from the flame velocity from which the portion affected by the engine speed is eliminated.05-30-2013
20130133631SYSTEM TO MEASURE PARAMETERS OF A PARTICULATE LADEN FLOW - A system to measure a parameter of a particulate laden gas flow may include a conduit enclosed by a boundary wall directing the particulate laden gas flow and a sensor configured to measure the parameter. The system may also include an annular averaging chamber extending radially outwardly from the conduit. The averaging chamber may be positioned such that the sensor is fluidly coupled to the conduit through the averaging chamber. The system may further include a porous element extending around the conduit. The porous element may be positioned such that the averaging chamber is fluidly coupled to the conduit through the porous element.05-30-2013
20130146038FLUID VALVE - The invention relates to a fluid valve, in particular for the exhaust gas from a motor vehicle engine, comprising a body (06-13-2013
20130139794EXHAUST GAS RECIRCULATION DEVICE FOR INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation device for an internal combustion engine includes: an opening command signal output unit 06-06-2013
20100288247INTAKE MANIFOLDS - An intake manifold includes a surge tank chamber, a plurality of branch passages and a gas tank chamber capable of introducing a gas and distributing the gas into the plurality of branch passages. The gas is to be refluxed to an engine.11-18-2010
20120272938METHOD FOR DETERMINING THE LOW PRESSURE EXHAUST GAS RECIRCULATION MASS FLOW IN THE AIR SYSTEM OF AN INTERNAL COMBUSTION ENGINE - In a method for determining a low pressure exhaust gas recirculation mass flow 11-01-2012
20100313859EXHAUST GAS RECIRCULATION VALVE - An exhaust gas recirculation valve is fabricated by fitting a valve head 12-16-2010
20130152908DIESEL-GASOLINE DUAL FUEL POWERED COMBUSTION ENGINE SYSTEM PROVIDED WITH SPARK-ASSISTED FOULING FREE EGR SYSTEM - A diesel-gasoline dual fuel powered combustion engine system is provided with spark-assisted fouling free EGR system in which gasoline and air are homogeneously combined and supplied to cylinders and then a diesel fuel is injected and combusted together. The system may include: a plurality of cylinders each having a fuel injector; and an exhaust line through which flows an exhaust gas discharged as a fuel from each cylinder is combusted; wherein gasoline fuel combustion type is adapted to one or more cylinder of the plurality of the cylinders, and diesel-gasoline fuel pre-mixed combustion type is adapted to the other cylinders.06-20-2013
20130180508SYSTEM AND METHOD OF CONTROLLING AN AMOUNT OF CONDENSATION IN AN ENGINE AIR INTAKE SYSTEM - A condensation collection system for an internal combustion engine having an exhaust gas recirculation system comprises a condensation collection line, a condensation accumulator, and a condensation expulsion line. The condensation collection line is disposed in fluid communication with an air intake system of an internal combustion engine. The condensation accumulator is in fluid communication with the condensation collection line. The condensation collection line being disposed between the air intake system and the condensation accumulator. The condensation expulsion line is in fluid communication with the condensation accumulator. A portion of the condensation expulsion line is disposed in contact with an engine exhaust pipe. The condensation expulsion line has an opening to vent condensation to the atmosphere.07-18-2013
20110303200PASSIVE RE-INDUCTION APPARATUS, SYSTEM, AND METHOD FOR RECIRCULATING EXHAUST GAS IN GASOLINE AND DIESEL ENGINES - An exhaust gas re-induction apparatus and system. The exhaust gas re-induction apparatus is coupled to an exhaust system or catalytic converter of an engine. The exhaust gas re-induction apparatus includes an oxygen sensor substitute apparatus having an exhaust gas diffusion chamber disposed therein, and an exhaust gas interface housing to receive the oxygen sensor substitute apparatus. A recirculation conduit connects the exhaust gas re-induction apparatus to an air inlet of an engine. The oxygen sensor substitute apparatus includes a coupling section to attach the oxygen sensor substitute apparatus in place of an oxygen sensor apparatus. The oxygen sensor substitute apparatus also includes an exhaust gas dispersion section having a plurality of orifices for dispersing exhaust gas. The exhaust gas re-induction apparatus and the recirculation conduit have always-open passages in which the exhaust gas is recirculated to the engine at different rates depending essentially on the operating speed of the engine.12-15-2011
20110303199EGR SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An EGR system for an IC engine, wherein the IC engine includes a block defining a plurality of combustion cylinders, a plurality of multi-valve heads, each multi-valve head associated with a respective combustion cylinder and including an inlet valve and an exhaust valve, an exhaust manifold fluid coupled with each exhaust valve, and an intake manifold fluidly coupled between the exhaust manifold and each inlet valve. The EGR system includes: 12-15-2011
20120000447INTERNAL COMBUSTION ENGINE SYSTEM - The invention relates to an internal combustion engine system, especially in a motor vehicle, comprising an internal combustion engine, a make-up gas installation for supplying make-up gas to the internal combustion engine, an exhaust gas installation for evacuating the exhaust gas from the internal combustion engine, and an exhaust gas recirculation installation for extracting exhaust gas from the exhaust gas installation and introducing the extracted exhaust gas into the make-up gas installation. In order to improve the exhaust gas recirculation, two make-up gas paths through which make-up gas can flow in parallel are formed in a control section of the make-up gas installation, a make-up gas valve being arranged in each make-up gas path, for controlling the cross-section of the respective path through which gas can flow.01-05-2012
20120017880DEVICE FOR MIXING EXHAUST GAS WITH FRESH AIR TO BE RETURNED TO A COMBUSTION ENGINE - A device has an air inlet channel with at an end an inlet opening for fresh air and at the other end an outlet opening for a mixture of air and exhaust gas. A part of a wall of the air inlet channel is provided with mixing openings for supply of exhaust gas. The device further has an exhaust gas recirculation channel connected to the mixing openings and provided with an inlet opening for exhaust gas.01-26-2012
20120017879Exhaust Gas Recirculation System For An Internal Combustion Engine - An exhaust gas recirculation system for an internal combustion engine comprises an exhaust driven turbocharger having a low pressure turbine outlet in fluid communication with an exhaust gas conduit. The turbocharger also includes a low pressure compressor intake and a high pressure compressor outlet in communication with an intake air conduit. An exhaust gas recirculation conduit fluidly communicates with the exhaust gas conduit to divert a portion of exhaust gas to a low pressure exhaust gas recirculation branch extending between the exhaust gas recirculation conduit and an engine intake system for delivery of exhaust gas thereto. A high pressure exhaust gas recirculation branch extends between the exhaust gas recirculation conduit and the compressor intake and delivers exhaust gas to the compressor for mixing with a compressed intake charge for delivery to the intake system.01-26-2012
20130206118EXHAUST GAS RECIRCULATION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - In a predetermined exhaust gas recirculation (“EGR”) region, an exhaust gas recirculation control device performs control to recirculate a portion of exhaust gas of an internal combustion engine to a suction passage through an EGR passage in which an EGR valve is provided. If it is detected that a fuel cut recovery condition is satisfied after a fuel cut condition is satisfied, the EGR valve is closed from when the fuel cut recovery condition is satisfied until fuel gas is detected in an exhaust gas passage that leads from a combustion chamber to an inlet of the EGR passage.08-15-2013

Patent applications in class Exhaust gas used with the combustible mixture (e.g., emission control Exhaust Gas Recirculation (EGR) valve)

Patent applications in all subclasses Exhaust gas used with the combustible mixture (e.g., emission control Exhaust Gas Recirculation (EGR) valve)