Entries |
Document | Title | Date |
20080271720 | Valve 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 |
20080276914 | Method 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 |
20080295812 | Anti-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 |
20080308079 | Exhaust 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 |
20090020105 | EXHAUST-GAS RECIRCULATION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - Proposed is an exhaust-gas recirculation device comprising a distributor element ( | 01-22-2009 |
20090025697 | FOUR-CYCLE ENGINE - An average pressure P | 01-29-2009 |
20090050120 | EXHAUST GAS RECIRCULATION DEVICE - The invention relates to an exhaust gas recirculation device ( | 02-26-2009 |
20090194079 | EXHAUST GAS RECIRCULATION DEVICE OF INTERNAL COMBUSTION ENGINE, AND CONTROL METHOD THEREOF - An exhaust gas recirculation device includes a turbocharger ( | 08-06-2009 |
20090241918 | ENGINE 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 |
20090266344 | Stratified 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 |
20090283076 | INTAKE 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 |
20090314264 | Method of Controlling Valve Timing of Diesel Engine - In a diesel engine equipped with an injector | 12-24-2009 |
20100006074 | EGR VALVE ASSEMBLY - The invention relates to an exhaust-gas-recirculation valve ( | 01-14-2010 |
20100024787 | APPARATUS, 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 |
20100031937 | EGR 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 |
20100037871 | INTERNAL COMBUSTION ENGINE - The present invention relates to an internal combustion engine | 02-18-2010 |
20100050999 | EXHAUST 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 |
20100051000 | METHOD 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 |
20100065026 | EXHAUST 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 |
20100065027 | EXHAUST GAS RECIRCULATION VALVE - An inner surface of an exhaust gas passage | 03-18-2010 |
20100071674 | METHOD 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 |
20100139630 | PARTICULATE 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 |
20100206274 | LOW 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 |
20100229841 | NITROGEN-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 |
20100242927 | SEAL 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 |
20100288247 | INTAKE 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 |
20100294252 | EXHAUST 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 |
20100313858 | COLD 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 |
20100313859 | EXHAUST GAS RECIRCULATION VALVE - An exhaust gas recirculation valve is fabricated by fitting a valve head | 12-16-2010 |
20110000470 | CONTROLLING 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 |
20110048388 | HEAT 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 |
20110056466 | WORKING GAS CIRCULATION ENGINE - A combustion chamber to which a reactant and a working gas whose specific heat ratio is higher than that of air are supplied and in which the working gas can expand following a reaction of the reactant, a circulation path capable of 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 |
20110088670 | EGR 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 |
20110094481 | EXHAUST GAS RECIRCULATION VALVE DEVICE - In an exhaust gas recirculation valve device, a sealing member | 04-28-2011 |
20110100341 | METHOD AND ARRANGEMENT FOR EXHAUST-GAS RECIRCULATION IN AN INTERNAL COMBUSTION ENGINE - A system and method are disclosed for providing exhaust-gas recirculation in an internal combustion engine that has an exhaust-gas turbocharger. The exhaust gas to be recirculated is collected from the exhaust line downstream of a turbine of the turbocharger, passed 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 |
20110108012 | INTERNAL 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 |
20110114067 | ENGINE 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 |
20110120429 | RECLAIM 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 |
20110132336 | Discharging 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 |
20110139132 | EXHAUST 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 |
20110146635 | PASSIVE 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 |
20110155109 | EXHAUST GAS RECIRCULATION DEVICE OF ENGINE - An exhaust gas recirculation device of an engine ( | 06-30-2011 |
20110155110 | VALVE BODY ASSEMBLY - The invention concerns an assembly of a valve body (A) and a seal ( | 06-30-2011 |
20110180049 | FRESH 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 |
20110214648 | PASSIVE 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 |
20110259305 | METHODS 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 |
20110265772 | EJECTOR 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 |
20110303199 | EGR 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 |
20110303200 | PASSIVE 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 |
20110315128 | DIESEL 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 S | 12-29-2011 |
20120000447 | INTERNAL 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 |
20120012087 | FUEL 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 |
20120017879 | Exhaust 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 |
20120017880 | DEVICE 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 |
20120024268 | Exhaust 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 |
20120024269 | FUEL 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 |
20120042856 | EGR 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 |
20120090581 | EXHAUST 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 |
20120090582 | EXHAUST 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 |
20120090583 | EGR 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 |
20120097138 | ENGINE 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 |
20120118275 | TRANSIENT 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 |
20120132182 | HIGH 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 |
20120132183 | HIGH CETANE RENEWABLE FUELS - A method for reducing the emissions of a diesel engine using a RHE-diesel fuel. | 05-31-2012 |
20120132184 | EGR 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 |
20120167861 | VALVE OPERATING SYSTEM FOR INTERNAL COMBUSTION ENGINE - A valve operating system for an internal combustion engine, which includes a decompression cam member ( | 07-05-2012 |
20120204844 | Dedicated 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 |
20120222659 | METHODS 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 |
20120227713 | WORKING 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 |
20120247439 | SYSTEMS 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 |
20120272938 | METHOD 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 |
20120285427 | EXHAUST 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 |
20120312283 | LOW 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 |
20120325183 | EGR 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 |
20120325184 | APPARATUS, 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 |
20130000615 | METHOD FOR CONTROLLING AN EGR CIRCUIT IN A MOTOR VEHICLE ENGINE - The invention relates to a method for controlling an exhaust gas recirculation circuit for an internal combustion engine of a motor vehicle. The engine is linked to an air intake circuit and to a gas exhaust circuit linked to the air intake circuit by the recirculation circuit. A first valve controls the flow of air upstream from the recirculation circuit, and a second valve controls the flow of exhaust gases that are recirculated within the recirculation circuit. The method comprises the following steps: a) the first valve is closed, and the second valve is gradually opened; b) if the second valve is opened at an angle greater than a value between 25° and 35°, the first valve is gradually opened concomitantly to the opening of the second valve. As a result of the invention, the EGR rate is easily controllable. | 01-03-2013 |
20130000616 | PASSIVE 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. | 01-03-2013 |
20130008416 | CONTROL 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 |
20130019846 | CONTROL 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 |
20130025576 | MULTIFUNCTION 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 |
20130037009 | Exhaust 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 |
20130042840 | DEVICE 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 |
20130092135 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method for operating an internal combustion engine, a measured NO | 04-18-2013 |
20130133631 | SYSTEM 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 |
20130133632 | EGR 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 |
20130139794 | EXHAUST 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 |
20130146038 | FLUID 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 |
20130152908 | DIESEL-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 |
20130167811 | EGR 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 |
20130167812 | EXHAUST 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 |
20130174816 | ENGINE 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 |
20130180508 | SYSTEM 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 |
20130206118 | EXHAUST 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 |
20130206119 | CONTROL 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 |
20130220286 | Fuel Injection Strategy for Internal Combustion Engine Having Dedicated EGR Cylinders - A method using exhaust gas recirculation (EGR) in an internal combustion engine. The engine has at least one “dedicated EGR cylinder”, whose entire exhaust is recirculated back to all the engine cylinders. The dedicated EGR cylinder is operated at a rich air-fuel ratio, and the other cylinders are operated stoichiometrically so that a conventional three way catalyst may be used to treat the exhaust. A fuel injector is used to inject fuel into the combustion chamber of the dedicated EGR cylinder after initiation of the main combustion event. This post injection method overcomes flammability limits of a dedicated EGR cylinder, and increases the hydrogen (H2) and carbon monoxide (CO) in its exhaust. | 08-29-2013 |
20130220287 | EXHAUST SYSTEM HAVING DEDICATED EGR CYLINDER CONNECTION - An exhaust system is disclosed for use with an engine. The exhaust system may have at least one exhaust manifold connectable between all combustion chambers of the engine and the atmosphere, and at least one exhaust valve associated with each combustion chamber of the engine. The at least one exhaust valve may be movable to selectively allow exhaust to pass from each combustion chamber into the at least one exhaust manifold. The exhaust system may also have an exhaust gas recirculation circuit fluidly connectable directly to at least one of the combustion chambers of the engine and to an intake duct of the engine, and at least one exhaust gas recirculation valve associated with the exhaust gas recirculation circuit. | 08-29-2013 |
20130228157 | EGR APPARATUS - An arm portion is integrally formed with a housing. The arm portion protrudes from the housing in such a manner as not to be in contact with a passage-forming portion and a passage-side fastening portion. The arm portion has corner portions and a drive-side fastening portion. After a heat of EGR gas is transferred to the drive-side fastening portion, the heat is transferred to the housing through the corner portions. The arm portion elongates a heat transfer pass from the EGR gas to the driving portion to increase a resistance of heat transfer. Further, the arm portion increases a heat radiation surface area to increase a heat radiation quantity. The EGR apparatus 1 can restrict a heat transfer from the EGR gas to the driving portion. | 09-05-2013 |
20130247883 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device includes first means and second means for recirculating exhaust gas from an exhaust passage toward an intake passage. When first recirculated gas amount recirculated by first means for recirculating exhaust gas is changed to a target amount, the control device compensates for the difference of the first recirculated gas amount during a period from a start time of change to an end time of change by increasing or decreasing the second recirculated gas amount recirculated by second means for recirculating exhaust gas, according to a predetermined control pattern. When an actual amount of index related to the recirculated gas amount that is a constituent included in the exhaust gas and an amount of the constituent vary depending on total amount of the exhaust gas does not match a referential amount of the index, the control pattern is corrected to decrease the difference of the index that is a difference of the actual amount with reference to the referential amount. | 09-26-2013 |
20130255649 | METHOD FOR DETERMINING THE RATE OF RECIRCULATED EXHAUST GAS AT THE INLET OF A CYLINDER OF AN INTERNAL COMBUSTION ENGINE, AND ENGINE IMPLEMENTING SUCH A METHOD - A method determining a rate of recirculated exhaust gas (EGR rate) at an inlet of a cylinder of an internal combustion engine at a moment t, the exhaust gas being conveyed in a recirculation duct connecting an exhaust line of the engine to an intake line, and the EGR rate being equal to the ratio between flow rate of the recirculated gas and total gas flow rate in the intake line at a location of the intake line in question and at the moment in question. The method: a) determines at which moment t_intro preceding the moment t the gas, having arrived at the inlet of the cylinder at moment t, was fed into the intake line; b) determines the EGR rate at an outlet of the recirculation line to the intake line at the moment t_intro; and c) determines the EGR rate at the inlet to the cylinder at moment t based on the EGR rate at the outlet of the recirculation line to the intake line at moment t_intro, as determined in b). | 10-03-2013 |
20130263830 | EXHAUST GAS RECIRCULATION DEVICE - A rotational angle sensor for an EGR valve memorizes a correlated characteristic between hall voltage and output voltage. Hall voltage of the rotational angle sensor at a reference angle is matched to a boundary value for the hall voltage on a valve closing side, wherein the reference angle is set at such an angle, which is shifted by a predetermined angle in the valve closing side from an upper-limit angle of a flow-rate dead zone. A valve full-closing control is carried out in order that the hall voltage will coincide with the boundary value on the valve closing side. An actual value of the rotational angle coincides with a value, which is shifted from the reference angle in a valve closing or opening direction by a changing range decided by changing factors of a sensor side and/or a mechanical-part side. | 10-10-2013 |
20130263831 | INTERNAL COMBUSTION ENGINE COMPRISING AN EXHAUST GAS RECIRCULATION SYSTEM - An internal combustion engine includes a plurality of cylinders, an air intake line and an exhaust line collecting exhaust gas. The engine also includes an EGR line for rerouting a part of the exhaust gas from the exhaust line towards the air intake line and at least a first turbocharger comprising a first turbine driven by the exhaust gas flowing towards the atmosphere, linked to a first compressor located on the air intake line. The engine further includes a variable geometry EGR turbine located on the EGR line, driven by the EGR gas flowing in the EGR line. Thus, thanks to the pressure reduction occurring in the turbine, the EGR gas temperature is lowered, and less cooling power from the engine cooling system is required to cool down the EGR. | 10-10-2013 |
20130269662 | METHOD AND DEVICE FOR MONITORING ERRORS IN AN EXHAUST GAS RECIRCULATION SYSTEM - A method and device for monitoring errors in an exhaust gas recirculation line, including supplying an engine with fresh air via a supply duct using a compressor, discharging exhaust gas via an exhaust duct using a gas turbine, a subflow of the gas being supplied from a low-pressure area of the exhaust duct downstream from the turbine, via the recirculation line, to an intake air low-pressure area of the supply duct upstream from the compressor, an exhaust gas mass flow of the subflow in the recirculation line is set via a valve, a fresh air mass flow being set by a fresh air throttle, or via an exhaust flap in the exhaust duct. Where the fresh air throttle or the exhaust flap is opened when the recirculation line is free of errors, an error in the recirculation line is deduced if the throttle or flap is at least partially closed. | 10-17-2013 |
20130298882 | EGR with Temperature Controlled Venturi Flow Meter - A flow meter that may be used in an exhaust gas recirculation (EGR) system is disclosed. The EGR system may be part of an internal combustion engine or other power source. The flow meter includes a venturi that includes a body that defines an inlet section, a throat and a diverging outlet section. The flow meter also includes a sensor coupled to the venturi via a plurality of pressure passages. | 11-14-2013 |
20130306041 | EXHAUST GAS RECIRCULATION DEVICE OF MULTI-CYLINDER ENGINE - An exhaust gas recirculation device is provided. The device recirculates, from an exhaust system to an intake system, a part of exhaust gas from a plurality of cylinders of a multi-cylinder engine as EGR gas. The device includes a single EGR pipe extending from the exhaust system toward the intake system, an EGR manifold branching from a downstream end portion of the EGR pipe toward each cylinder, and an EGR valve for adjusting an EGR gas amount. The EGR manifold has one or more common EGR passages having a single pipe portion and branched pipe portions, and one or more independent EGR passages. Each shape of the common and independent EGR passages is set so that a communicating path in the EGR manifold communicating an arbitrary cylinder with a cylinder where combustion is performed subsequently thereto has the same volume for any cylinder combination having the adjacent combustion order. | 11-21-2013 |
20130319381 | ENGINE INCLUDING VENTURI IN INTAKE AIR FLOW PATH FOR EXHAUST GAS RECIRCULATION SUPPLY - An engine assembly includes an engine block defining a first cylinder bore, a cylinder head coupled to the engine block and defining a first intake port and a first exhaust port in communication with the first cylinder bore, a first intake valve located in the first intake port, a first exhaust valve located in the first exhaust port, a first intake runner and a first exhaust gas recirculation passage. The first intake runner defines an intake air supply passage in communication with the first intake port and includes a first restricted flow region forming a venturi. The first exhaust gas recirculation passage is in communication with the first restricted flow region and provides exhaust gas from the engine assembly to the first intake runner at the first restricted flow region. | 12-05-2013 |
20130340727 | ENGINE WITH DEDICATED EGR EXHAUST PORT AND INDEPENDENTLY DEACTIVATABLE EXHAUST VALVES - An engine assembly includes an engine block defining a cylinder, an exhaust system, and an exhaust gas recirculation system. A first exhaust valve is configured to control the flow of fluid from the cylinder to the exhaust system. A second exhaust valve configured to control the flow of fluid from the cylinder to the exhaust gas recirculation system. The second valve is deactivatable independently of the first valve, thereby enabling EGR flow. | 12-26-2013 |
20130340728 | ENGINE WITH DEDICATED EGR EXHAUST PORT AND INDEPENDENT EXHAUST VALVE CONTROL - An engine assembly includes an engine block defining a cylinder, an exhaust system, and an exhaust gas recirculation system. A first cam-actuated exhaust valve is configured to control the flow of fluid from the cylinder to the exhaust system. A second cam-actuated exhaust valve configured to control the flow of fluid from the cylinder to the exhaust gas recirculation system. The timing of the second valve is adjustable independently of the timing of the first valve, thereby enabling control of EGR flow through manipulation of exhaust valve timing. | 12-26-2013 |
20130340729 | NEEDLE SLEEVE, IN PARTICULAR FOR PIVOTABLY MOUNTING THE THROTTLE VALVE SHAFT OF A CONTROL DEVICE FOR RECIRCULATING EXHAUST GAS IN INTERNAL COMBUSTION ENGINES - The invention concerns a needle sleeve ( | 12-26-2013 |
20140000571 | METHOD AND SYSTEM FOR PROVIDING FUEL TO INTERNAL COMBUSTION ENGINES | 01-02-2014 |
20140007850 | GAS BACKPRESSURE SENSOR ASSEMBLY - A gas sensor assembly for sensing a pressure of a gas including a housing, a carrier, an electronic chip, a cap and a biasing apparatus. The housing has a wall defining cavity with a port open to the gas. The carrier is mounted to the wall in the cavity. The electronic chip is secured to the carrier on an opposed side from the port and includes a diaphragm portion exposed to the port. The cap is mounted to the chip on an opposed side from the carrier. The biasing apparatus is located between the cap and the wall of the housing, with the biasing apparatus being configured to bias the cap toward the chip whereby gas pressure acting against the diaphragm is opposed by the biasing apparatus. | 01-09-2014 |
20140007851 | METHOD OF CONTROLLING AN AFTER-TREATMENT SYSTEM WARM-UP - A method is provided for controlling an internal combustion engine. The engine includes, but is not limited to a low pressure EGR cooler by-pass circuit, and a control valve. The method controls the opening of the EGR cooler by-pass circuit with the control valve, if enabling conditions are met. | 01-09-2014 |
20140014075 | METHOD AND SYSTEM FOR MATCHING AIR FLOW IN AN EXHAUST GAS RECIRCULATION SYSTEM - Various methods and systems are provided for an exhaust gas recirculation system. In one embodiment, an engine method comprises routing exhaust gas from a first cylinder group of an engine to an exhaust gas recirculation passage coupled to both an intake passage and an exhaust passage of the engine, the first cylinder group having a first amount of positive intake and exhaust valve overlap, and routing exhaust gas from a second cylinder group of the engine only to the exhaust passage of the engine, the second cylinder group having a second, smaller amount of positive intake and exhaust valve overlap. | 01-16-2014 |
20140026872 | VARIABLE VALVE TIMING FOR EGR CONTROL - Methods and systems are provided for adjusting cylinder valve timings to enable a group of cylinders to operate and combust while another group of cylinders on a second are selectively deactivated. Valve timing may be adjusted to allow flow of air through the inactive cylinders to be reduced, lowering catalyst regeneration requirements upon reactivation. The valve timing may alternatively be adjusted to enable exhaust gas to be recirculated to the active cylinders via the inactive cylinders, providing cooled EGR benefits. | 01-30-2014 |
20140026873 | Variable Miller Cycle for Reactivity Controlled Compression Ignition Engine and Method - A four stroke internal combustion engine includes least one cylinder having a reciprocable piston, a first fuel injector disposed to inject a first fuel into said cylinder, and a second fuel injector disposed to inject a second fuel into said cylinder. At least one intake valve of said cylinder is configured to open and close with a variable timing in accordance with a Miller thermodynamic cycle. An exhaust gas recirculation system, provides exhaust gas to said cylinder through the intake valve. An electronic controller is disposed to receive at least one input signal indicative of the operating conditions of the internal combustion engine, and adjusts at least one of the intake valve timing and the amount of exhaust gas recirculation. | 01-30-2014 |
20140053817 | INTERNAL COMBUSTION ENGINE - A variable-valve-mechanism controlling portion controls a variable valve mechanism in such a manner that an exhaust valve is opened not only in an exhaust stroke but also in an intake stroke. In the intake stroke, a part of the exhaust gas discharged from the combustion chamber is returned to the combustion chamber along with an intake air flowing through the intake passage. A fluid injector injects a non-combustible fluid including water into the exhaust gas discharged from the combustion chamber. In the intake stroke, the exhaust gas introduced into the combustion chamber from the exhaust passage contains a water vapor evaporated from the non-combustible fluid. The exhaust gas discharged from the combustion chamber in the exhaust stroke includes the non-combustible fluid and is returned to the combustion chamber in a successive intake stroke. | 02-27-2014 |
20140076291 | METHOD AND APPARATUS FOR CONTROLLING PREMIXED COMBUSTION IN A MULTIMODE ENGINE - A method of fueling an internal combustion engine including operating the internal combustion engine in a dual-fuel mode in which the engine is fueled by a pre-mixed charge of fresh air, recirculated exhaust gases, gaseous fuel as primary fuel and early injected liquid fuel as a secondary fuel, ignited by a late injected pilot fuel to provide low temperature combustion. The method further includes adjusting EGR and/or fresh airflow to the engine to maintain peak in-cylinder temperature in a desired range, preferably between 1500 K and 2000 K. EGR preferably is controlled to obtain a desired in-cylinder O | 03-20-2014 |
20140102426 | Valve And Filter Assembly For A Regeneration System - A regeneration system includes a housing defining an exhaust flow path. An inlet of the housing is configured to receive an exhaust flow from the internal combustion engine and an outlet of the housing is configured to direct the exhaust flow toward an exhaust aftertreatment component. A combustion head is coupled with the housing and configured to direct air and fuel to a combustion chamber in fluid communication with the exhaust flow path. A fuel supply passage is defined by the combustion head and is in fluid communication with the combustion chamber. The regeneration system also includes a valve and filter assembly disposed within the fuel supply passage. The valve and filter assembly includes an assembly housing defining a reduced fuel supply passage, a filter material coupled with the assembly housing, and a check valve at least partially disposed within the reduced fuel supply passage. | 04-17-2014 |
20140109883 | LAMBDA FEEDBACK CONTROL FOR ROBUST PARTICULATE EMISSIONS PERFORMANCE - Methods are disclosed for reducing the variability of particulate emissions in an exhaust stream from an internal combustion engine using a lambda error and/or a NO | 04-24-2014 |
20140123964 | EXHAUST GAS RECIRCULATION VALVE - In an EGR valve, a valve element is seatable on a valve seat by stroke movement of a valve stem caused by an actuator. The valve seat has a cylindrical part with which a step of the stem is engageable. By the stroke movement of the valve stem, the opening degree between the valve seat and the valve element is changed. The valve seat is moved in the passage in the stroke movement direction to be engageable with a shoulder of the passage. As the valve element is moved together with the stem, the opening degree in the low opening range is changed. As the step of the stem is engaged with the cylindrical part and the valve seat is moved with respect to the shoulder, the opening degree in the high opening range is changed. | 05-08-2014 |
20140130783 | INTAKE DEVICE FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER - A compressor ( | 05-15-2014 |
20140150757 | INTAKE AIR MODULE OF AN INTERNAL COMBUSTION ENGINE - An embodiment of the invention provides a device for distributing and mixing an intake air for an internal combustion engine, comprising an intake manifold connected with an intake air cooling channel and a bypass channel, wherein the intake manifold is provided with an EGR distribution pipe, wherein the EGR distribution pipe, the intake air cooling channel and the bypass channel are arranged to each other in such a way that a first air flow from the intake air cooling channel and a second air flow from the bypass channel pass around the EGR distribution pipe along the same flow direction. | 06-05-2014 |
20140158098 | EXHAUST GAS RECIRCULATION VALVE - In an EGR valve, a valve element is moved with respect to a valve seat to adjust a passage section width of a measuring section, thereby regulating an EGR gas flow rate in a passage. The valve seat includes a valve hole, a first end face facing to a downstream side of the passage and a second end face facing to an upstream side of the passage. The inner circumferential surface of the valve hole has a concave curved shape with an inner diameter gradually increasing toward the second end face. The valve element is placed inside the valve hole to be movable in between a fully closed position and a fully open position. While the valve element is placed in the fully open position, passage section widths of parts of the measuring section in an EGR gas flow direction are approximate to each other. | 06-12-2014 |
20140165974 | AN EXHAUST GAS RECIRCULATION MIXER - Disclosed is an EGR mixer for mixing a fresh air flow and an EGR flow. The EGR mixer comprises an air duct configured to allow a fresh air flow to flow therethrough, and comprises an EGR duct configured to allow an EGR flow to flow therethrough. The EGR mixer comprises a mixing duct positioned downstream of the air duct and the EGR duct. The EGR mixer comprises a supplemental duct fluidly connecting the EGR duct to a second mixing section of the mixing duct. The EGR mixer is configured to mix the fresh air flow and the EGR flow into a mixed flow. | 06-19-2014 |
20140165975 | EXHAUST GAS RECIRCULATION VALVE FOR VEHICLE - An exhaust gas recirculation valve for a vehicle may include a housing having a flow path through which an exhaust gas flows, a shaft installed in the housing to be rotatable, a flap valve provided to be rotatable about the shaft and configured to open and close the flow path, a bushing provided on the shaft, an anti-wear washer installed on the shaft between the flap valve and the bushing, and a spring means installed on the shaft and configured to elastically support the bushing. | 06-19-2014 |
20140174412 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND METHOD THEREFOR - An apparatus controls an internal combustion engine provided with an EGR device having an EGR passage and an EGR valve that is provided in the EGR passage and can adjust an EGR amount. This apparatus includes a controller that estimates state parameters of the internal combustion engine that affect the behavior of the EGR gas within a predetermined period of time; sets constraints on the EGR amount within the predetermined period on the basis of an approximated dynamics obtained by approximating a true dynamics, which is a transition of the EGR amount within the predetermined period, so that approximated values do not exceed the true dynamics; determines a target value of the EGR amount according to the estimated state parameters within a range of the EGR amount on which the constraints that have been set; and controls the EGR valve so that the EGR amount becomes the determined target value. | 06-26-2014 |
20140182566 | METHOD FOR OPERATING A RECIPROCATING PISTON INTERNAL COMBUSTION ENGINE WITH INTERNAL EXHAUST GAS ENERGY RECUPERATION AND RECIPROCATING PISTON INTERNAL COMBUSTION ENGINE - In a method for operating a reciprocating-piston internal combustion engine having internal exhaust gas energy recuperation, a cylinder head recuperator is heated up during an exhaust cycle by hot exhaust gas flowing through the cylinder head recuperator prior to being exhausted from the cylinder via an exhaust valve. During an intake cycle, fresh charge flows into the power chamber of the cylinder by passing around a cylinder head recuperator. During the subsequent compression stroke, the cylinder head recuperator is moved out of a recess formed in the cylinder head such that some of the compressed charge can flow into the recess. Near the end of the compression stroke, the cylinder head recuperator is moved back into the recess so that compressed charge located in the recess is forced to flow through the hot cylinder head recuperator and thereby be heated up immediately before ignition of the compressed charge. | 07-03-2014 |
20140196697 | Internal Combustion Engine Having Dedicated EGR Cylinder(s) With Intake Separate From Intake Of Main Cylinders - A method and system for using an internal combustion engine with dedicated EGR cylinders to provide an adjustable EGR rate to the main (non dedicated) cylinders. The dedicated EGR cylinder(s) are configured to receive fresh air via a fresh air intake or to receive a portion of the mixture of fresh air and EGR gas via the same mixed intake line that delivers intake to the main cylinders. If the dedicated EGR cylinder(s) receive only fresh air, the main cylinder(s) receive EGR at higher EGR rate. If the dedicated EGR cylinder(s) receive only the portion of fresh air and EGR gas, the main cylinder(s) receive EGR at a lower EGR rate. The EGR rate to the main cylinder(s) may be adjusted between these rates in response to operating conditions of the engine. | 07-17-2014 |
20140196698 | VVA CONTROL OF NOx IN A LOW AP AREA OF AN ENGINE OPERATING MAP - When the difference by which pressure in an engine exhaust manifold exceeds pressure in an engine intake manifold becomes less than a selected difference while an intake valve operating mechanism is closing cylinder intake valves at a selected time in the engine cycle, while an EGR system is conveying the engine exhaust component of an air/exhaust mixture from an exhaust system to an intake system, and a certain quantity of NOx is present in engine exhaust entering the exhaust manifold, the quantity of NOx present in engine exhaust entering the exhaust manifold is reduced below that certain quantity by causing the intake valve operating mechanism to close the cylinder intake valves earlier in the engine cycle than the selected time. | 07-17-2014 |
20140202433 | SYSTEMS AND METHODS FOR DEDICATED EXHAUST GAS RECIRCULATION AND CONTROL - Systems and methods for exhaust gas recirculation are provided. The system includes a dedicated exhaust gas recirculation loop for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a low pressure exhaust gas recirculation loop for increasing the exhaust gas recirculation amount above that provided by the dedicated exhaust gas recirculation loop. | 07-24-2014 |
20140202434 | LIQUID INJECTION FOR SCAVENGING - Methods are provided for controlling an engine. One method may include boosting engine intake air to a cylinder; and injecting an amount of a scavenging fluid into the cylinder based on an amount of cylinder residual exhaust gas. A scavenging fluid, such as water or windshield washer fluid evaporates on contact with the hot exhaust gases and hot metal components and the expanded volume of the vapor displaces the residual exhaust gas, thereby improving engine scavenging. | 07-24-2014 |
20140209072 | CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - A device of an internal combustion engine, which has a multicore processor including a plurality of cores mounted thereon and is capable of calculating various calculations relating to an operation of the internal combustion engine in parallel by the plurality of cores, includes a calculation unit that assigns a task of the calculations to at least one of the plurality of cores and performs the calculation, an EGR unit that controls an EGR operation that recirculates a gas flowing in an exhaust system of the internal combustion engine to an intake system, and a control unit that decreases a number of cores that are used in the calculation unit to be smaller as compared with before stop, when the EGR operation is stopped. The calculation unit includes an assigning unit that assigns a task of a specific calculation relating to the EGR operation to one or a plurality of designated cores, and when the EGR operation is stopped, the control unit stops the designated core or cores. | 07-31-2014 |
20140216422 | METHOD OF CONTROLLING ENGINE - A method of engine control includes: determining and comparing actual and target supply amounts of EGR gas; sensing an open rate of an EGR valve to control the actual supply amount supplied to an intake line; if the actual supply amount is smaller than the target supply amount and if the EGR-valve open rate is at a maximum, fixing an open rate of a bypass valve installed at a bypass line that bypasses an electrodynamic turbocharger to a minimum open rate; and controlling the EGR-valve open rate in a state in which the bypass-valve open rate is fixed to a minimum open rate. Therefore EGR gas can be more precisely and stably supplied. | 08-07-2014 |
20140230799 | METHODS AND SYSTEMS FOR COOLING EXHAUST SYSTEM COMPONENTS - Various methods and systems are provided for cooling exhaust system components. In one example, a system comprises heat shield surrounding at least a part of an engine exhaust passage valve positioned in an engine exhaust passage of an engine, and an air jet configured to direct compressed air into the heat shield. The heat shield contains the compressed air around an exterior of the at least the part of the engine exhaust passage valve. | 08-21-2014 |
20140238362 | MIXING CHAMBER OF EXHAUST GAS RECIRCULATION SYSTEM - A mixing chamber for mixing exhaust gas with intake air, in an engine is provided. The mixing chamber includes a first end, a second end and a side wall. The mixing chamber includes an intake air inlet in fluid communication with the first end of the mixing chamber, an exhaust gas inlet arranged in the side wall of the mixing chamber, located downstream of the intake air inlet and having a leading flow edge corresponding to an intersection of the intake air inlet and the exhaust gas inlet, and a mixing projection located on an inner periphery of the side wall. The mixing projection extends at least partially across the mixing chamber, wherein the mixing projection has a deflection surface and a trailing edge which is at least partially aligned with the leading flow edge of the exhaust gas inlet. | 08-28-2014 |
20140251286 | EMISSION SYSTEM AND METHOD OF SELECTIVELY DIRECTING EXHAUST GAS AND AIR WITHIN AN INTERNAL COMBUSTION ENGINE - A powertrain includes a combustion chamber, an intake assembly, an exhaust manifold, and a pump. The combustion chamber is configured for combusting an air and fuel mixture. The intake assembly is configured to supply air to the combustion chamber. The exhaust manifold is configured to draw exhaust gas from the combustion chamber. The pump is operatively disposed between the intake assembly and the exhaust manifold such that the pump is in fluid communication with each of intake assembly and the exhaust manifold. The pump is configured to operate in a first mode to draw exhaust gas from the exhaust manifold and supply the exhaust gas to the intake manifold at a positive EGR flow rate such that exhaust gas is supplied to the combustion chamber. | 09-11-2014 |
20140251287 | EGR CONTROLLER FOR INTERNAL COMBUSTION ENGINE - While an EGR valve is closed, a total gas flow rate is computed based on an intake air pressure. An error of the total gas flow rate is learned and corrected. When the EGR valve is opened, the total gas flow rate is computed based on the intake air pressure. An actual EGR-gas flow rate is computed based on the total gas flow rate and a fresh-air flow rate. By using of the EGR valve model, an estimated EGR-gas flow rate is computed based on the fresh-air flow rate and an opening degree of the EGR valve. An error of the estimated EGR-gas flow rate is learned and corrected based on the actual EGR-gas flow rate and the estimated EGR-gas flow rate. Based on a volume fraction of the corrected estimated EGR-gas flow rate and the fresh-air flow rate, an EGR ratio is computed. | 09-11-2014 |
20140251288 | MODULE FOR SUPPLYING GAS TO A MOTOR VEHICLE - The invention relates to a module ( | 09-11-2014 |
20140261341 | MULTI-CYCLE STRATIFIED INTERNAL COMBUSTION SYSTEM - An internal combustion engine that uses stratification of gasses for compressing air is disclosed. The engine uses a combustion chamber that delivers products of combustion into an elongated compression chamber to drive the products of combustion against resident air within the elongated compression chamber, and push the resident air into a compressed air chamber. After driving the resident air into the compressed air chamber, the products of combustion are used with work-producing devices. Air is then driven into the compression chamber by an air pump or low-pressure compressor to once again fill the compression chamber with fresh air. The air in the compressed air chamber is then delivered to the combustion chamber and used for combustion. Fuel is delivered to the combustion chamber by a fuel injector, and ignited by the heat of the compressed air and/or a glow plug, spark plug, or similar ignition device. | 09-18-2014 |
20140261342 | Apparatus, System, and Method for Reducing Emission of Nitrogen Oxides - An apparatus, system and method for reducing the emission of nitrogen oxides in an internal combustion engine system. Exhaust gas directly or indirectly downstream of the internal combustion engine is at least selectively stored in an exhaust gas storage region. Upon the occurrence of at least one enablement condition, indicative of a potential period where the emission of nitrogen oxides (NOx) will increase, the stored exhaust gas is inserted into the internal combustion engine to assist in reducing the emission of the nitrogen oxides. The exhaust gas storage volume regularly, or the exhaust gas storage volume may be filled during strategic periods when the emissions of nitrogen oxides are low and/or there is a low need for the recirculation of exhaust gas. | 09-18-2014 |
20140311464 | EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINE - In an exhaust system for an internal combustion engine, an output member is configured to transmit power generated by a motor to a valving element via a valve stem. An output shaft is disposed on a rotation central axis of an output gear and coupled with the output gear to be rotatable integrally therewith. A follower is disposed eccentrically relative to a rotation central axis of the output shaft and connected to the output shaft to be rotatable integrally therewith. A first accommodating chamber accommodates at least the valve stem and the follower. A second accommodating chamber accommodates at least the motor and the output gear. A housing includes a housing wall that divides the first chamber from the second chamber. The housing wall includes a first bearing slidably supporting the output shaft in its rotation direction, and a cylindrical first bearing holder holding outer periphery of the first bearing. | 10-23-2014 |
20140311465 | RECLAIM 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. | 10-23-2014 |
20140318511 | EXHAUST GAS RECIRCULATION DEVICE FOR INTERNAL COMBUSTION ENGINE - Provided is an exhaust gas recirculation device for an internal combustion engine, the device being configured, without an increase in the number of parts, so that stress concentrated on an EGR pipe and on the connection section thereof is dispersed. The upstream EGR pipe extends substantially upward from the first connection section and has four bends provided between the first connection section and the second connection section. Among the four bends, the smallest-angle bend having the smallest bend angle is disposed at a position having a substantially equal distance from both the first connection section and the second connection section. | 10-30-2014 |
20140345578 | Inner Fin - There is provided an inner fin wherein: a sheet material is formed into an offset configuration in which grooves and ridges are formed alternately in a widthwise direction, and the grooves and the ridges are offset laterally at right angles to a gas flowing direction at predetermined length intervals in an alternate fashion; and a first projection and a second projection are formed for each segment surrounded by a pair of left and right side walls, by cutting either an upper surface portion or a lower surface portion and causing the cut surface portion to stand, the first projection being inclined towards an upstream side of the gas flowing direction, the second projection being disposed downstream of the first projection and being inclined towards a downstream side of the gas flowing direction at an angle equal to an angle at which the first projection is inclined. | 11-27-2014 |
20140366852 | System and Method for Exhaust Gas Re-Circulation - An exhaust gas re-circulation mixer for use with an engine is disclosed. The exhaust gas re-circulation mixer may include an inlet air port configured to receive inlet air, an outlet configured to release a mixture of the inlet air and exhaust gases and a body integrated with and connecting the inlet air port and the outlet together in fluid communication to form a unitary structure. The body may define a cavity therein for mixing the inlet air and the exhaust gases, the exhaust gas re-circulation mixer being composed of a composite material. | 12-18-2014 |
20140366853 | EGR CONTROLLER FOR INTERNAL COMBUSTION ENGINE - While an engine is at idling state with an EGR valve fully closed, an EGR controller estimates a leak quantity of an exhaust gas flowing into an intake passage and performs a biasing-force-increase control in which the EGR valve is biased toward a full-close position. When the leak quantity of the exhaust gas is greater than or equal to a specified value, the controller executes an abutting control in which the EGR valve is opened and closed multiple times so that the EGR valve is brought into contact with a valve seat multiple times after the engine is shut down. | 12-18-2014 |
20140373818 | AIR SUPPLY SYSTEM - An air supply system includes a displacement type compressor attached to an intake pipe of an engine, a motor that is variable in rotation number and configured to drive the compressor, and an arithmetic circuit configured to control the rotation number of the motor so as to control an amount of air supplied to the engine by the compressor. | 12-25-2014 |
20150013651 | Dedicated EGR Engine with Dynamic Load Control - An internal combustion engine comprises a first engine bank and a second engine bank. A first intake valve is disposed in an intake port of a cylinder of the first engine bank, and is configured for metering the first flow of combustion air by periodically opening and closing according to a first intake valve lift and duration characteristic. A variable valve train control mechanism is configured for affecting the first intake valve lift and duration characteristic. Either a lift or duration of the first intake valve is modulated so as to satisfy an EGR control criterion. | 01-15-2015 |
20150020781 | Engine Inlet For EGR-Air Flow Distribution - An intake manifold having an EGR-air flow distributor for distributing the desired air flow and EGR-air mixture through the intake manifold to each cylinder is disclosed. The EGR-air flow distributor includes a set of guide vanes defining plural flow channels in a plenum region of the inlet manifold. The EGR-air flow distributor also includes an EGR tube partially extending into the inlet manifold and having a slot formed therein for introducing EGR into the plenum region at a single location between the engine throttle and the guide vanes. | 01-22-2015 |
20150020782 | TURBO PUMP - An exhaust turbo pump of an internal combustion engine has multiple pairs of turbine and compressor wheels rotatable about a common axis, an inner pair of wheels being connected by a tubular shaft rotatable relative to a spindle connecting an outer pair of wheels. One pair of wheels comprises a turbocharger for inlet air, and another pair of wheels comprises a low pressure EGR pump. | 01-22-2015 |
20150059713 | INTAKE MANIFOLD - An intake manifold comprising an intake gas duct, an EGR duct, an EGR flow measurement system, and a mixing duct. The intake gas duct allows the fresh intake gas to flow therethrough. The EGR flow measurement system defines a portion of an EGR duct and measures a differential pressure of the recirculated exhaust gas passing through the EGR flow measurement system. The mixing duct is positioned downstream of the intake gas duct, and it is also positioned downstream of the EGR duct. The mixing duct, which is integrally formed into the EGR flow measurement system, mixes the fresh intake gas and the recirculated exhaust gas into a mixed intake gas. | 03-05-2015 |
20150059714 | Method of Operating an Internal Combustion Engine with a Turbocharger - The present disclosure relates to a method for operating an internal combustion engine for a motor vehicle, in particular a passenger car having a turbocharger with a compressor and a turbine. The method includes determining a change quantity of a gas flow quantity of a gas flow through the internal combustion engine and regulating the compressor based on this change quantity. | 03-05-2015 |
20150083096 | TURBOCHARGER TURBINE BOOSTER - A method of operating the turbine booster to improve engine operating response and to increase the effectiveness of emission control devices is disclosed. A turbocharger turbine booster for a turbo charged internal combustion engine provides pressurized air to the turbocharger turbine and increases the oxygen in engine exhaust without increasing the engine combustion oxygen content. | 03-26-2015 |
20150096542 | EXHAUST GAS RECIRCULATION SYSTEM WITH A POPPET VALVE - Exhaust gas recirculation circuit comprising: at least one valve ( | 04-09-2015 |
20150101578 | METHOD OF ESTIMATING THE BOOST CAPABILITY OF A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A method of estimating a boost pressure of a turbocharger is disclosed. A throttle body temperature is estimated as a function of engine operating parameters. An intake air mass flow and an exhaust mass flow are estimated as a function of the throttle body temperature. A turbine inlet pressure and a turbine outlet pressure are estimated as a function of engine operating parameters. A turbine speed is estimated as a function of the intake air mass flow, exhaust mass flow and turbine inlet and outlet pressure. The boost pressure is estimated as a function of the turbine speed. Estimation of the maximum boost pressure of a turbocharged internal combustion engine is performed method cyclically as follows: estimating a throttle temperature, estimating an air mass flow and an exhaust mass flow, estimating a turbine inlet pressure and a turbine outlet pressure, estimating a turbine speed, and estimating the maximum boost pressure. | 04-16-2015 |
20150107565 | EXHAUST GAS RECIRCULATION (EGR) VALVE FOR VEHICLE - Disclosed is an exhaust gas recirculation (EGR) valve for a vehicle which achieves regulation of the flow rate of exhaust gas introduced into an engine and the flow rate of fresh air. The EGR valve includes a fresh air flow channel, an EGR flow channel connected to the fresh air flow channel and a valve unit configured to open or close the EGR flow channel and to selectively block the fresh air flow channel according to an opened/closed state of the EGR flow channel. The valve unit includes a first valve to open or close the EGR flow channel and a second valve arranged at one side of the first valve at a different angle from an arrangement angle of the first valve. The second valve is moved along with the first valve to selectively interfere with a flow stream of fresh air in the fresh air flow channel. | 04-23-2015 |
20150122236 | Valves - A valve suitable for use as an exhaust gas recirculation valve in an engine includes a valve housing defining an interior space, a valve stem and a valve member, which may be a poppet, mounted on said valve stem. The valve member is arranged to move between open and closed positions. The valve further includes a mounting member, which may be a bush, located in the interior space, with said valve stem supported within the mounting member. The valve member includes a deflector to direct fluid away from the mounting member when the valve member is in an open position. | 05-07-2015 |
20150122237 | WORKING GAS CIRCULATION TYPE ENGINE - In a stratification operation, O | 05-07-2015 |
20150128915 | EXHAUST GAS RECIRCULATION VALVE - An EGR valve includes a housing formed with a passage, a valve seat provided in the passage, a valve element seatable on the valve seat, a valve stem provided with the valve element at an end, and an actuator for making stroke movement of the valve stem. The valve element is moved together with the valve stem with respect to the valve seat to change an open area of a measuring section, thereby changing an opening degree of the valve element, to adjust a flow rate of EGR gas in the passage. The EGR valve has high-resolution flow-rate characteristics in a low opening region of the valve element and large flow-rate characteristics in a high opening region. The valve element and the valve seat have predetermined shapes to cause the flow-rate characteristics in the low opening region to change in a curve without a step. | 05-14-2015 |
20150292398 | CHARGING DEVICE FOR INTERNAL COMBUSTION ENGINES - A charging device for internal combustion engines includes a compressor part configured to compress drawn-in combustion air. The compressor part is arranged in an intake line of the internal combustion engine and is connected to the internal combustion engine via an actuatable mechanical coupler. An expansion part is disposed in a circulation system for a circulating working medium. The circulation system includes at least one exhaust-gas heat exchanger and a circulation pump such that the expansion part is driven utilizing waste heat from the internal combustion engine. An electric machine is connected to the expansion part so as to drive the compressor part. The electric machine is connected to the compressor part. An operational electric connection is disposed between the electric machine and a battery so that electric energy is stored during an energy-recovery mode or else so that electric energy is provided to drive the electric machine. | 10-15-2015 |
20150300217 | INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a variable valve mechanism that takes a valve characteristic of an intake valve, and changes the valve characteristic according to an engine operating state; a turbocharger that includes a bypass passage that bypasses a turbine wheel arranged in an exhaust passage by connecting a portion of the exhaust passage that is upstream of the turbine wheel to a portion of the exhaust passage that is downstream of the turbine wheel, and a waste gate valve that adjusts a flow path area of the bypass passage; and a control apparatus configured to, when there is a request to increase the valve characteristic according to a change in the engine operating state, change the valve characteristic to an increase side with the variable valve mechanism after opening the waste gate valve to an opening amount that is larger than before the request. | 10-22-2015 |
20150322897 | EXHAUST-GAS-TURBOCHARGED APPLIED-IGNITION INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO TURBINES, AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE - A method for operating a boosted internal combustion engine is provided. The engine includes a first cylinder in a first cylinder group and a second cylinder in a second cylinder group, each of the first and second cylinders having two activatable outlet openings adjoined by an exhaust line, one of the outlet openings of each of the first and second cylinders coupled to a first turbocharger including a first turbine and one of the outlet openings of each of the cylinders coupled to a second turbocharger including a second turbine, the method comprising: if engine load is less than a threshold load value implementing a first operating mode that includes deactivating the second cylinder, deactivating one of the activatable outlet openings in the first cylinder, and activating one of the activatable outlet opening in the first cylinder. | 11-12-2015 |
20150337771 | EXHAUST GAS RECIRCULATION DEVICE - An exhaust gas recirculation device for an engine including a plurality of cylinders and intake branch passages is provided. The exhaust gas recirculation device includes an exhaust chamber and distribution passages for the respective cylinders. The exhaust chamber is connected to an exhaust passage of the engine, and exhaust gas from the exhaust passage is introduced into the exhaust chamber. The distribution passages connect the exhaust chamber to the intake branch passages for the respective cylinders so as to recirculate the exhaust gas back into the intake branch passages. The flow passage area of a first portion of each of the distribution passages is smaller than the flow passage area of a second portion of each of the distribution passages. The first portion is connected to the corresponding intake branch passage, and the second portion is connected to the exhaust chamber. | 11-26-2015 |
20150337774 | UNBURNED FUEL VENTING IN INTERNAL COMBUSTION ENGINES - An internal combustion engine is disclosed. The engine may have a cylinder. The engine may also have a piston reciprocally movable within the cylinder between a top dead center (TDC) and a bottom dead center (BDC). The piston may separate the cylinder into an upper piston section and a lower piston section. The piston may have a piston ring assembly with a piston ring configured to sealingly contact the cylinder. The piston ring assembly may have a thickness (D). The engine may have an annular crevice in fluid communication with the upper piston section. The engine may also have a plurality of venting grooves that may fluidly connect the annular crevice with the lower piston section, only when the crank angle ranges from about 85° to 95° and about 265° to 275° after the top dead center (TDC). | 11-26-2015 |
20150345434 | VALVE, PARTICULARLY AN EXHAUST GAS RECIRCULATION VALVE - The invention pertains to a valve, particularly an exhaust gas recirculation valve, said valve comprising a conduit ( | 12-03-2015 |
20150361872 | EXHAUST GAS RECIRCULATION CONTROL DEVICE AND EXHAUST GAS RECIRCULATION CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - When an EGR control valve is fixed and a valve opening degree EGRVO of the EGR control valve is greater than a valve-opening threshold value EGRVOth, a limit value Qlim of the intake air amount is set to a prescribed amount Qlim1. Conversely when the EGR control valve is fixed and the valve opening degree EGRVO of the EGR control valve is less than or equal to the valve-opening threshold value EGRVOth, the limit value Qlim of the intake air amount is set to a prescribed amount Qlim2. | 12-17-2015 |
20150361906 | CONTROL APPARATUS FOR VEHICLE - A control apparatus for a vehicle, wherein the vehicle includes an engine having a turbocharger and an automatic transmission. The control apparatus includes at least one electronic control unit configured to: control an air-fuel ratio of the engine and an operating state of the turbocharger based on a parameter indicating a load of the engine; control the turbocharger to execute turbocharging and operate the engine in a turbocharging lean combustion mode when the parameter is within a predetermined range, an air-fuel ratio set in the turbocharging lean combustion mode being a predetermined lean air-fuel ratio; and operate the engine in a predetermined operation mode instead of the turbocharging lean combustion mode in at least a part of the predetermined range when a downshift is performed in the automatic transmission, an air-fuel ratio set in the predetermined operation mode being a richer air-fuel ratio than the predetermined lean air-fuel ratio. | 12-17-2015 |
20150369120 | DISCHARGE VALVE AND ASSOCIATED DEVICE - The invention concerns a discharge valve ( | 12-24-2015 |
20150369121 | RESTORING UNIT, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE - A restoring unit for an internal combustion engine may include a restoring console including a substantially cylindrical bearing dome. A first bearing unit may include a first receiving opening. The bearing dome may be rotatably inserted into the first receiving opening about an axis of the restoring console. A spring element may be arranged at least partially on an outer circumferential face of the bearing dome, and the restoring console may be preloaded via the spring element against the first bearing unit. The bearing dome may be detachably arranged in the first receiving opening via a clip connection. The clip connection may include a radial through-slot disposed on a first face side of the bearing dome facing the first receiving opening. The bearing dome may have a console bearing face mounting the restoring console within the first bearing unit. | 12-24-2015 |
20160003133 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - In a case where a vehicle is in a steady running state or in a slow acceleration state, opening of an electric waste gate valve is set so that an actual air flow rate becomes minimum. Then, a feedback control is applied to opening of an electronically controlled throttle valve so that an actual amount of intake air generates output torque of an engine corresponding to an engine load. When the electronically controlled throttle valve is fully opened, while opening of the electronically controlled throttle valve is maintained, the feedback control is applied to opening of the electric waste gate valve so that output torque of the engine corresponds to an engine load, or an actual amount of intake air becomes a target amount of the intake air. | 01-07-2016 |
20160032869 | TWIN SCROLL TURBOCHARGER IN A VARIABLE DISPLACEMENT ENGINE - Methods and systems are provided for operating an engine with variable displacement engine (VDE) operation coupled to a twin scroll turbocharger. One method comprises directing exhaust from a first outer cylinder and a first inner cylinder of four cylinders to a first scroll of the twin scroll turbocharger, directing exhaust from a second outer cylinder and a second inner cylinder of the four cylinders to a second scroll of the twin scroll turbocharger, and during a first condition, firing all four cylinders with uneven firing. | 02-04-2016 |
20160032873 | REDUCING FUEL CONSUMPTION OF SPARK IGNITION ENGINES - Atomic oxygen is provided for the purpose of promoting reliable ignition and smooth combustion in a spark ignition internal combustion engine is to disperse a low concentration of an atomic oxygen precursor, such as nitrous oxide (N2O), into the flammable mixture of air and gasoline vapor prior to the time of ignition. The introduction of N2O may take place in the intake manifold, in the stream of exhaust gas being returned as part of the EGR process, or directly into the combustion chamber (for example through a small orifice in the base of the spark plug or through a small nozzle located elsewhere in the cylinder head). Introduction of N2O directly into the combustion chamber may be continuous, or it may be pulsed so as to occur at the time of or shortly before, spark ignition. | 02-04-2016 |
20160047338 | METHODS AND SYSTEMS FOR SURGE CONTROL - Systems and methods are provided for reducing surge in a boosted engine system. One method comprises adjusting an opening of a compressor recirculation valve to allow a compressor recirculation flow based on a combination of a nominal compressor recirculation flow and a filtered nominal compressor recirculation flow. The nominal compressor recirculation flow may be calculated as a difference between a desired compressor flow rate based on a surge limit of compressor and an estimated throttle mass flow rate. | 02-18-2016 |
20160061125 | METHOD AND APPARATUS FOR CONTROLLING AN ENGINE WITH EGR AND A TURBOCHARGER - A control system is provided for controlling an internal combustion engine. The internal combustion engine includes a turbocharging unit and an exhaust gas recirculation assembly. The control system is adapted to issue a boost pressure control signal. The control system includes a boost pressure controller adapted to determine the boost pressure control signal. The boost pressure controller has a first response time. The control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly. The control system includes an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal. The exhaust gas recirculation controller has a second response time, wherein the first response time differs from the second response time. | 03-03-2016 |
20160061164 | VACUUM PRODUCER INCLUDING AN ASPIRATOR AND AN EJECTOR - A vacuum producer for supplying vacuum to a device in a boosted engine air system is disclosed. The boosted engine air system includes a throttle. The vacuum producer includes a first engine connection, a second engine connection, an aspirator, an aspirator check valve, an ejector, and an ejector check valve. The first engine connection is fluidly connected to atmospheric pressure and the second engine connection is fluidly connected to the engine air system at a location upstream of an intake manifold of an engine and downstream of the throttle. The aspirator provides vacuum to the device if pressure at the intake manifold is below atmospheric pressure. The ejector provides vacuum if pressure at the intake manifold is above atmospheric pressure. | 03-03-2016 |
20160069300 | EXHAUST GAS RECIRCULATION CONTROL DEVICE FOR ENGINE - An exhaust gas recirculation control device for an engine is provided. The device includes an EGR passage connecting an exhaust passage of the engine with an intake passage of the engine, an EGR amount adjustor for adjusting an EGR amount that is a recirculation amount of exhaust gas of the engine through the EGR passage, an adjustor controller for controlling the EGR adjustor to adjust the EGR amount, and a gear position detector for detecting a gear position of a transmission of a vehicle on which the engine is mounted. When the gear position detected by the gear position detector during an idle operation of the engine is a non-travel position, the adjustor controller performs an EGR amount increase control in which the EGR amount adjustor is controlled to increase the EGR amount to be higher than when the gear position is a travel position. | 03-10-2016 |
20160076467 | Combustion Engine, In Particular Gas Engine, For a Vehicle, In Particular For a Commercial Vehicle - A combustion engine, in particular a gas engine, for a vehicle, in particular for a commercial vehicle, has an intake duct through which a gas, in particular a fuel gas/air/exhaust gas mixture, can be fed to a combustion unit), in particular a cylinder-piston unit, of the combustion engine, and an exhaust gas recirculation system feeding in an exhaust gas from the combustion unit at an exhaust gas admission region to the gas fed to the combustion unit. At least one measuring device that determines the gas mass flow, in particular fuel gas/air/exhaust gas mass flow, and the gas temperature, in particular fuel gas/air/exhaust gas temperature, is arranged in the intake duct upstream of the combustion unit and downstream of the exhaust gas admission region. At least one temperature sensor is arranged both in the exhaust gas recirculation system and in the intake duct, in each case upstream of the exhaust gas admission region, in addition to the measuring device, in order to determine a recirculated exhaust gas mass flow and/or an air mass flow fed to the combustion unit. | 03-17-2016 |
20160084155 | TURBOCHARGER SYSTEM - A turbocharger system for an internal combustion engine is disclosed which includes a variable-geometry-turbine having movable vanes, an electric actuator coupled to rotate the movable vanes. An electronic control unit is configured to operate the electric actuator for rotating the movable vanes until they reach a mechanical stop corresponding to a fully-open position. A position sensor learns the position value of the movable vanes, once they have reached the mechanical stop. | 03-24-2016 |
20160108801 | TURBOCHARGER CONTROL - A rotary device is coupled to the rotary mechanism of a turbocharger for selectively adding torque to and subtracting torque from the rotary turbocharger mechanism. A controller causes the rotary device to apply torque to the rotary turbocharger mechanism which causes the compressor to operate at a power level which creates a target pressure in the intake manifold different from existing pressure in the intake manifold. | 04-21-2016 |
20160115911 | CRANKCASE VENTILATION FOR TURBOCHARGED ENGINE - An internal combustion engine for an automotive vehicle has an intake manifold receiving fresh air via an inlet duct. The engine includes a crankcase. A turbocharger is provided having a compressor with an inlet coupled to the inlet duct and an outlet coupled to the intake manifold. A first vent line couples the crankcase with the compressor inlet. A second vent line couples the crankcase with the compressor outlet and intake manifold. The second vent line has a valve blocking air flow into the crankcase and allowing air flow out from the crankcase. The first vent line comprises a dual-acting valve having a first flow capacity into the crankcase and a second flow capacity out from the crankcase which is greater than the first flow capacity. Thus, crankcase ventilation is optimized for both engine idle and high engine load conditions. | 04-28-2016 |
20160115914 | APPARATUS FOR INPOURING EXHAUST GAS BY EXHAUST GAS RECIRCULATION - An apparatus for inpouring exhaust gas by exhaust gas recirculation (EGR) including an EGR line inclined upward, into which the exhaust gas is inpoured, and having a portion of an end thereof connected to a middle portion of the exhaust line. | 04-28-2016 |
20160123278 | METHOD AND APPARATUS FOR MONITORING A COOLANT SYSTEM FOR AN EXHAUST GAS RECIRCULATION SYSTEM - A method for monitoring an internal combustion engine includes monitoring thermal efficiency in a heat exchanger of an exhaust gas recirculation (EGR) system with a flow control valve commanded to a first, open state and monitoring thermal efficiency in the heat exchanger with the flow control valve commanded to a second, closed state. The flow control valve is evaluated based upon the monitored efficiencies. | 05-05-2016 |
20160138525 | EGR DEVICE IN INTAKE MANIFOLD - A housing has an outer pipe, an inner pipe, and an EGR inlet. The inner pipe is located inside the outer pipe. The inner pipe defines an inner passage internally. The inner pipe defines an annular passage externally with the outer pipe. The EGR inlet defines an EGR channel therein to communicate with the annular passage. The inner pipe has an end surface defining a throttle passage extending circumferentially. The throttle passage communicates the annular passage with the inner passage radially inward. The throttle passage is narrow on a side of the EGR channel and is wide on an opposite side of the EGR channel. | 05-19-2016 |
20160160806 | SLUDGE DETECTION AND COMPENSATION FOR THE CONTINUOUSLY VARIABLE COMPRESSOR RECIRCULATION VALVE - Methods and systems are provided for improving boost pressure control by adjusting a variable compressor recirculation valve. In one example, a method may include adjusting a position of a continuously variable compressor recirculation valve based on amount of sludge accumulation on the valve. The amount of sludge accumulation may be estimated based on a difference between total intake flow downstream of a compressor recirculation passage outlet but upstream of the passage, and total engine flow entering engine cylinders. | 06-09-2016 |
20160160807 | EGR DEVICE HAVING SLIDABLE VALVE - An EGR device includes a housing and a valve. The housing has an outer pipe and an inner structure. The inner structure is located inside the outer pipe to define an annular passage externally with the outer pipe. The inner structure defines an inner passage internally. The inner structure has apertures. The valve is in a tubular shape and is located inside the inner structure. The valve is slidable in an axial direction to communicate the annular passage with the inner passage through the apertures and to block the inner passage from the annular passage. | 06-09-2016 |
20160201611 | Sensor for Determining Engine Characteristics | 07-14-2016 |