Class / Patent application number | Description | Number of patent applications / Date published |
060278000 | Material from exhaust structure fed to engine intake | 72 |
20080256929 | Internal combustion engine system and control method of internal combustion engine system - Under the condition that a catalyst temperature Tc of a purification catalyst reaches or exceeds a preset reference temperature Tcref, when a cooling water temperature Tw of an engine is not lower than a preset reference temperature Twref, the internal combustion engine system of the invention sets a target exhaust recirculation rate EGR* based on a given rotation speed Ne of the engine and a given load factor KL and performs exhaust recirculation control to open an EGR valve at a specific angle or opening corresponding to the set target exhaust recirculation rate EGR*. When the cooling water temperature Tw is lower than the preset reference temperature Twref, on the other hand, the internal combustion engine system of the invention sets a fuel increment amount a based on the given rotation speed Ne of the engine and the given load factor KL and performs fuel increment control to increase the specific amount of fuel, which is set relative to the amount of intake air to attain the stoichiometric air-fuel ratio as a value to be injected from a fuel injection valve, by the set fuel increment amount α. This arrangement effectively prevents overheat of the purification catalyst while minimizing the deterioration of fuel consumption. | 10-23-2008 |
20080256930 | ENERGY SYSTEM AND METHOD FOR RECYCLING FUELS - A closed energy system using carbon-containing fuels is described. The system includes a utilization portion, where a fuel is stored and consumed, and a recycling portion, where the products of utilization are recycled into fuel. In one embodiment, dimethyl ether is used as a fuel. The utilization of the fuel produces carbon dioxide, which is stored for later recycling. In one embodiment, solar energy is used in the recycling of materials. In certain embodiments, a fueling station is provided that recycles waste from the utilization of the fuel. | 10-23-2008 |
20080264038 | Exhaust treatment system having an acidic debris filter - An exhaust treatment system for a power source has an air induction system, an exhaust system and a recirculation system. The exhaust system includes a particulate filter. The recirculation system is configured to draw exhaust from downstream of the particulate filter and direct the exhaust to the air induction system. The recirculation system includes an exhaust gas cooler, and an acidic debris filter. | 10-30-2008 |
20090000275 | INTERNAL COMBUSTION ENGINE HAVING COMPRESSOR WITH FIRST AND SECOND TRIBUTARY INLETS - An internal combustion engine ( | 01-01-2009 |
20090013667 | Cylinder Charge Temperature Control for an Internal Combustion Engine - As one embodiment, a method of operating an engine including at least a first cylinder and a second cylinder is provided. The method comprises operating the first cylinder of the engine to provide a net flow of gases from an intake manifold to an exhaust manifold over a plurality of cycles of the first cylinder and performing auto-ignition in said first cylinder of a mixture including said gases; and during said operation of the first cylinder, operating the second cylinder of the engine to provide a net flow of gases from the exhaust manifold to the intake manifold. | 01-15-2009 |
20090013668 | Cylinder Charge Temperature Control for an Internal Combustion Engine - As one embodiment, a method of operating an engine including at least a first cylinder and a second cylinder is provided. The method comprises operating the first cylinder of the engine to provide a net flow of gases from an intake manifold to an exhaust manifold for a plurality of cycles of the first cylinder and combusting a first mixture including the gases in the first cylinder by auto-ignition; and during the operation of the first cylinder, repetitively operating the second cylinder of the engine to admit gases from the intake manifold into the second cylinder and retaining the admitted gases within the second cylinder for a period before exhausting the admitted gases into the intake manifold; and adjusting an operating parameter of the second cylinder to vary a timing of the auto-ignition by the first cylinder. | 01-15-2009 |
20090013669 | Cylinder Charge Temperature Control for an Internal Combustion Engine - A method of operating an engine including at least a first cylinder and a second cylinder, the method comprising operating the first cylinder of the engine to provide a net flow of gases from an intake manifold to an exhaust manifold while combusting a mixture including said gases in said first cylinder during each cycle of the first cylinder; and during said operation of the first cylinder, operating the second cylinder of the engine to provide a net flow of gases from the exhaust manifold to the intake manifold, wherein said net flow of gases from the exhaust manifold to the intake manifold includes at least a portion of said combusted mixture by the first cylinder. | 01-15-2009 |
20090031705 | Exhaust Gas Purification Device of Compression Ignition Type Internal Combustion Engine - An internal combustion engine in which an SO | 02-05-2009 |
20090056314 | Exhaust Gas Purification Method and Exhaust Gas Purification System - An exhaust gas purification system ( | 03-05-2009 |
20090113876 | INTERNAL COMBUSTION ENGINE EXHAUST GAS SYSTEM - An internal combustion engine exhaust gas system includes an EGR arrangement adapted to lead a first flow of exhaust gas, the EGR flow, from an outlet side of the engine to an inlet side of the engine, an exhaust gas conduit adapted to lead away a second flow of exhaust gas, the exhaust flow, from the outlet side of the engine, and an energy recovering unit, such as a turbo, associated with the exhaust gas conduit. The unit is adapted to recover exhaust gas energy from the exhaust flow. The system includes a heat exchanger adapted to allow heat exchange between at least a part of the EGR flow and at least a part of the exhaust flow, the heat exchanger being associated with the exhaust gas conduit at a position downstream the energy recovering unit. | 05-07-2009 |
20090120063 | Hydrocarbon Retaining System Configuration for Combustion Engine - Systems, methods, and computer readable storage media are described in which exhaust gas is routed to a hydrocarbon retaining device during starting, and purged to the engine intake manifold. Various alternative approaches are described for controlling operation and diagnosing degradation. Further, various interrelated configurations are described. | 05-14-2009 |
20090120064 | Engine Starting Control for Engine with Hydrocarbon Retaining System - Systems, methods, and computer readable storage media are described in which exhaust gas is routed to a hydrocarbon retaining device during starting, and purged to the engine intake manifold. Various alternative approaches are described for controlling operation and diagnosing degradation. Further, various interrelated configurations are described. | 05-14-2009 |
20090126345 | ENGINE WITH EMISSIONS CONTROL ARRANGEMENT AND METHOD OF CONTROLLING ENGINE EMISSIONS - An engine with an emissions control arrangement includes an engine including an intake and an exhaust system, an EGR system comprising a conduit between the exhaust system and the intake and an EGR controller between the exhaust system and the conduit, the EGR controller being adapted to control EGR flow from the exhaust system to the intake, a reduction agent introduction system adapted to introduce a reduction agent into the exhaust system, and a controller arranged to adjust EGR flow and reduction agent introduction as functions of each other. | 05-21-2009 |
20090241515 | EXHAUST CONDENSATION SEPARATOR - An exhaust gas recirculation system disposed between an exhaust system and an intake system incorporates a water separator which separates acidic water from the exhaust gas prior to the exhaust gas being sent to the intake system of the engine. The water collected by the water separator is sent back to the exhaust system at a position downstream from the exhaust gas recirculation system. | 10-01-2009 |
20090313972 | Heat Exchanger with Disimilar Metal Properties - An exhaust gas recirculation cooler may include a housing and a first wall. The housing may include an exhaust gas region, a coolant region, an exhaust gas inlet, and an exhaust gas outlet. The first wall may be fixed within the housing and may separate the exhaust gas region from the coolant region. The first wall may include a first portion formed from a first material and facing the exhaust gas region and a second portion formed from a second material and facing the coolant region. One of the first and second materials may have a coefficient of thermal expansion that is greater than the other of the first and second materials. The first wall may be deflected toward one of the exhaust gas region and the coolant region during cooler operation based on a difference in the coefficient of thermal expansion of the first and second materials. | 12-24-2009 |
20100011746 | HYDROCARBON RETAINING AND PURGING SYSTEM - Methods and systems are provided for reducing hydrocarbon emissions from an engine having a hydrocarbon retaining system. One example method comprises flowing exhaust gas over a hydrocarbon trap, the trap having a plurality of layers with different porosity and/or a different adsorptive affinity to hydrocarbon chains, and flowing hydrocarbons from a fuel tank over the hydrocarbon trap. | 01-21-2010 |
20100083638 | Exhaust system having sulfur removing device - An exhaust system for an engine is disclosed. The exhaust system may include a passageway configured to receive exhaust from the engine, and a recirculation circuit. The recirculation circuit is configured to recirculate exhaust from the passageway back into the engine. The exhaust system may also include an SO | 04-08-2010 |
20100095651 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR SAME - During a rich spike control for an exhaust gas purification system for an internal combustion engine, a base air-fuel ratio AFb is decreased in a range where a combustion variation ΔCC does not exceed a permissible limit ΔCCL (S | 04-22-2010 |
20100126142 | INTERNAL COMBUSTION ENGINE EXHAUST GAS CONTROL SYSTEM AND CONTROL METHOD OF INTERNAL COMBUSTION ENGINE EXHAUST GAS CONTROL SYSTEM - In a control method of an internal combustion engine exhaust gas control system which is applied to a hybrid vehicle that is powered by an internal combustion engine and an electric motor, an exhaust throttle valve, provided downstream of an exhaust gas control catalyst, is controlled to reduce its opening amount to a target opening amount when it is determined that warm-up control of the internal combustion engine needs to be executed. Next, a target injection quantity of fuel necessary to increase the temperature of exhaust gas flowing into the internal combustion engine to a target exhaust gas temperature is calculated. Then, assist torque from the electric motor is adjusted so that the sum of torque from the internal combustion engine when the fuel injection quantity has been set to the target injection quantity and the assist torque substantially equals a required torque. | 05-27-2010 |
20100199639 | EXHAUST-GAS RECIRCULATION APPARATUS AND EXHAUST-GAS RECIRCULATION FLOW RATE ESTIMATION METHOD FOR INTERNAL COMBUSTION ENGINES - An exhaust-gas recirculation apparatus for an internal combustion engine has a high-pressure EGR passage ( | 08-12-2010 |
20100199640 | TEMPERATURE CONTROL DEVICE FOR CATALYST - A temperature control device for a catalyst, which is capable of rapidly activating a catalyst while maintaining reduced exhaust emissions, by properly controlling the temperature of exhaust gases according to an activated state of the catalyst. If the catalyst is determined not to be in the activated state, based on an acquired temperature of the catalyst, the temperature control device for a catalyst sets a temperature higher than the temperature of the catalyst by a predetermined temperature is set as a target exhaust gas temperature. Further, the temperature control device controls a combustion control parameter including at least one of an amount of recirculation of exhaust gases by an EGR device, an amount of intake air drawn into an engine, a supply amount and a supply timing of fuel supplied into the engine, according to the set target exhaust gas temperature. | 08-12-2010 |
20100229536 | EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - Disclosed is a technology that enables better reduction of NOx stored in an NOx catalyst in an exhaust gas purification system for an internal combustion engine. When NOx stored in an NOx catalyst is to be reduced, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to a target air-fuel ratio by decreasing the air-fuel ratio of the exhaust gas discharged from the internal combustion engine. In doing so, if the temperature of the NOx catalyst is not lower than a specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while bringing the combustion state into low temperature combustion. On the other hand, if the temperature of the NOx catalyst is lower than the specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while decreasing the quantity of EGR gas in a cylinder so that the amount of generated smoke is kept within an allowable range. | 09-16-2010 |
20100251698 | EXHAUST PURIFICATION SYSTEM FOR HYBRID ELECTRIC VEHICLE - An ammonia selective reduction-type NOx catalyst ( | 10-07-2010 |
20100257845 | EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE - An exhaust purification device for an internal combustion engine is provided that can promote the reduction of NOx in a NOx purification catalyst from immediately after startup of the internal combustion engine. The exhaust purification device includes: a fuel reformer that is provided separately from exhaust plumbing | 10-14-2010 |
20100263356 | ARRANGEMENT FOR AN EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE - An arrangement is provided for an exhaust line of an internal combustion engine including a fuel burner located upstream of a diesel particulate filter, and a selective catalytic conversion unit. The arrangement includes a turbine connected to an energy recovering arrangement interposed on the engine exhaust line between the diesel particulate filter and the SCR unit. It is possible to convert into useful work the thermal energy liberated by the filter regeneration which, in a conventional exhaust line is wasted, Further, the turbine has the further effect of lowering the temperature entering the SCR unit which, in a conventional exhaust line, is fed with high temperature exhaust gas that has a detrimental effect on the life span of the SCR unit. | 10-21-2010 |
20110067383 | WORKING GAS CIRCULATION ENGINE - A working gas circulation engine includes a combustion chamber that is supplied with fuel, the combustion product of which is condensed, and working gas that generates power with the use of combustion of the fuel and that has a specific heat ratio higher than that of air, a circulation path that connects an inlet and an outlet of the combustion chamber to each other in such a manner that the working gas is circulated back to the combustion chamber without being released into the atmosphere, and two condensers that are provided in the circulation path, that are supplied with exhaust gas which contains the combustion product and the working gas, and that condense and remove the combustion product. | 03-24-2011 |
20110072791 | PARTICULATE FILTER REGENERATION IN AN ENGINE COUPLED TO AN ENERGY CONVERSION DEVICE - Systems and methods for controlling regeneration of a particulate filter downstream of an engine coupled to an energy conversion device are provided herein. One exemplary method includes, during first engine shutdown conditions, increasing excess oxygen to the particulate filter by spinning the engine with the energy conversion device, and regenerating the particulate filter. The method also includes, during second engine shutdown conditions, decreasing the excess oxygen to the particulate filter. | 03-31-2011 |
20110072792 | PARTICULATE FILTER REGENERATION DURING ENGINE SHUTDOWN - Various systems and method are described for controlling an engine having an exhaust system which includes a particulate filter. One example method comprises, after shutting down the engine and spinning down the engine to rest, operating a vacuum pump to draw fresh air through the exhaust system to an intake system, and regenerating at least a portion of the particulate filter during the engine rest. | 03-31-2011 |
20110126520 | Regeneration Method for Diesel Particulate Filter - A regeneration control method of a particulate filter, may include regenerating the particulate filter, determining whether an engine is in an idle condition or in an over-run condition, and controlling the regeneration of the particulate filter according to the idle condition or the over-run condition. | 06-02-2011 |
20110131957 | Methods and Systems for Emission System Control - Methods and systems are provided for operating a turbocharged engine including a particulate filter positioned upstream of a turbocharger turbine, a catalyst positioned downstream of the turbine, and an EGR passage coupled between an engine exhaust and engine intake. In one example, the method comprises, diverting exhaust gas from downstream of the filter to the engine intake via the EGR passage, and adjusting an amount of diverted exhaust gas based on filter operating conditions. | 06-09-2011 |
20110173956 | PARTICLE TRAP FOR AN EXHAUST GAS RECIRCULATION LINE AND AUTOMOBILE HAVING A PARTICLE TRAP - A particle trap disposed between an exhaust gas line and an exhaust gas recirculation line includes at least one partially permeable hollow body separating the exhaust gas recirculation line from the exhaust gas line. The at least one partially permeable hollow body has a wall defining a primary shape with an inner space having at least one open side. The wall is gas-permeable and has a secondary structure with elevations and depressions. An automobile having a particle trap is also provided. | 07-21-2011 |
20110203260 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - An exhaust purification system of an internal combustion engine arranging in an engine exhaust passage an NOx storing reducing catalyst storing NOx contained in exhaust gas when an air-fuel ratio of inflowing exhaust gas is lean and reducing and purifying stored NOx when the air-fuel ratio of the inflowing exhaust gas becomes a stoichiometric air-fuel ratio or rich, which system is provided with an NOx production reducing means for reducing an amount of production of NOx produced in a combustion chamber due to change of a combustion state of the engine and temporarily reduces the amount of production of NOx by the NOx production reducing means when an amount of N | 08-25-2011 |
20110225955 | EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust apparatus for an internal combustion engine comprises: an exhaust heating device ( | 09-22-2011 |
20110247318 | Exhaust heat exchanger - An exhaust heat exchanger includes a water tank accommodating tubes and having an outside space defined outside of the tubes, a gas tank having an exhaust passage and an outside space defined outside of the exhaust passage, a dividing portion to separate the outside space of the water tank from the exhaust passage of the gas tank, and a communication portion. The outside space of the gas tank and the outside space of the water tank communicate with each other through the communication portion. | 10-13-2011 |
20110289904 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An object of the present invention is that after return from fuel cut, an oxygen storage amount in a catalyst in an exhaust path and an oxygen storage amount in a catalyst in an exhaust gas recirculating path are promptly adjusted to be in appropriate states, respectively. A control apparatus for an internal combustion engine of the present invention controls the internal combustion engine including a recirculating gas generating cylinder and a recirculating gas nongenerating cylinder. The control apparatus includes: an exhaust gas recirculating path for connecting the exhaust path through which exhaust gas only in the recirculating gas generating cylinder is delivered and an intake system; a recirculating catalyst provided on the exhaust gas recirculating path; and rich control means that performs rich control for controlling an air-fuel ratio to be temporarily richer than a theoretical air-fuel ratio when fuel injection is restarted after return from the fuel cut. The rich control means includes air-fuel ratio control means that controls an air-fuel ratio in the recirculating gas generating cylinder to be richer than an air-fuel ratio in the recirculating gas nongenerating cylinder when the rich control and an exhaust gas recirculation by the exhaust gas recirculating path are simultaneously performed. | 12-01-2011 |
20110314797 | PRESSURE BALANCED EXHAUST GAS RECIRCULATION ASSEMBLY FOR A LOCOMOTIVE TWO-STROKE UNIFLOW SCAVENGED DIESEL ENGINE - A two-stroke uniflow scavenged diesel engine system including an exhaust gas recirculation (EGR) system is described for reducing NO | 12-29-2011 |
20120031079 | HYBRID POWERTRAIN SYSTEM INCLUDING AN INTERNAL COMBUSTION ENGINE AND A STIRLING ENGINE - An exhaust aftertreatment system for treating an exhaust gas feedstream of an internal combustion engine includes a catalytic converter, a fluidic circuit and a Stirling engine. The Stirling engine is configured to transform thermal energy from a working fluid heat exchanger to mechanical power that is transferable to an electric motor/generator to generate electric power. The Stirling engine is configured to transform mechanical power from the electric motor/generator to thermal energy transferable to the working fluid heat exchanger. | 02-09-2012 |
20120060479 | CONTROL DEVICE AND CONTROL METHOD FOR VEHICLE - An ECU executes the program including the step acquiring a catalyst temperature when the execution condition for fuel-cut control is satisfied the step selecting a throttle opening degree based on the catalyst temperature; the step executing fuel-cut control; and the step executing return control from fuel-cut control when the condition for returning from fuel-cut control is satisfied. | 03-15-2012 |
20120079814 | EXHAUST GAS RECIRCULATION SYSTEM - An exhaust gas recirculation system ( | 04-05-2012 |
20120144806 | INTERNAL COMBUSTION ENGINE - An internal combustion engine, in which intake air flows through an intake passage into a combustion chamber and exhaust gas resulting from the combustion in the combustion chamber flows through an exhaust passage, includes an exhaust gas purifier provided in the exhaust passage and having an oxidation catalyst, an LPL-EGR passage connecting between the intake passage and the exhaust passage at a position downstream of the exhaust gas purifier as seen in exhaust gas flow direction, a first estimating device for estimating exhaust gas composition at a position upstream of the exhaust gas purifier, a second estimating device for estimating exhaust gas composition at a position downstream of the exhaust gas purifier, a cylinder temperature adjusting device for adjusting temperature in the combustion chamber, and a controller for controlling the cylinder temperature adjusting device based on the difference in the exhaust gas composition between the first and second estimating devices. | 06-14-2012 |
20120240557 | EXHAUST GAS PURIFICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas purification system for an internal combustion engine, which is provided with: a selective reduction type catalyst arranged in an exhaust passage of the internal combustion engine; a low pressure EGR mechanism that is equipped with a low pressure EGR passage for introducing a part of an exhaust gas flowing through a portion of the exhaust passage downstream of a turbine of a centrifugal supercharger to a portion of an intake passage upstream of a compressor as a low pressure EGR gas, and a low pressure EGR valve for changing a channel cross section of the low pressure EGR passage; a supply device. | 09-27-2012 |
20120279204 | Drive Train, in Particular for a Motor Vehicle - The invention concerns a drive train, in particular for a motor vehicle,
| 11-08-2012 |
20130061575 | INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - This invention relates to an internal combustion engine and a control device for the internal combustion engine and has an object to provide an internal combustion engine and a control device therefore that can suppress occurrence of knocking if an EGR rate is increased. An EGR gas can be made to flow separately through one path via one EGR passage and an other path via another EGR passage. The EGR gas flow through the other path can be cooled by an intercooler. Since the intercooler usually has a capacity larger than that of an EGR cooler, its cooling capability is high, and the EGR gas can be made to flow into a surge tank in a state where heat of the EGR gas has been sufficiently emitted. | 03-14-2013 |
20130086891 | EXHAUST PORT STRUCTURE OF CYLINDER HEAD - An exhaust port structure of a cylinder head includes a connection pipe communicating with a plurality of exhaust ports of the cylinder head and an exhaust hole connected to the connection pipe and performing a function of an exhaust manifold, wherein the connection pipe has an EGR line integrally formed and connected thereto and each of the exhaust ports is formed with the same shape or a symmetrical shape, and the present invention can reduce the weight of the cylinder head and the manufacturing cost and improve the EGR rate and T/C efficiency. | 04-11-2013 |
20130086892 | EXHAUST PIPE INJECTION CONTROL DEVICE - An exhaust pipe injection control device to optimally control a degree of exhaust gas recirculation (“EGR”) opening during diesel particulate filter (“DPF”) regeneration. The device includes a regeneration-time opening control unit which controls a degree of EGR opening of an EGR device during DPF regeneration, and a regeneration-time opening map in which an optimal degree of EGR opening of the EGR device during DPF regeneration is set in advance according to an engine rotation speed and a fuel injection amount of an engine. The regeneration-time opening control unit performs exhaust gas recirculation by referring to the regeneration-time opening map based on the engine rotation speed and the fuel injection amount of the engine and controlling the degree of EGR opening of the EGR device. | 04-11-2013 |
20130086893 | EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust gas control apparatus ( | 04-11-2013 |
20130139491 | EXHAUST GAS HEAT RECOVERY SYSTEM AND TRANSMISSION WARMER IMPLEMENTATION STRATEGY FOR A VEHICLE - A vehicle includes a coolant circuit that circulates a flow of an engine coolant therethrough. The coolant circuit includes an Exhaust Gas Heat Recover (EGHR) system for transferring heat from a flow of exhaust gas from an internal combustion engine to the flow of the engine coolant. A control valve is disposed downstream of the EGHR system, and directs the flow of the engine coolant along either a first fluid flow path back to the internal combustion engine to heat the internal combustion engine, or a second fluid flow path including a transmission fluid warming system to heat a supply of transmission fluid to reduce transmission spin loss. | 06-06-2013 |
20130199162 | TWO-STAGE TURBOCHARGED ENGINE - A turbocharged internal combustion engine disclosed that may comprise an engine block with a first end side opposing a second end side and a two-stage turbocharged system. The two-stage turbocharged system may comprise a low-pressure turbocharger with a first turbine and a first compressor and a high-pressure turbocharger with a second turbine and a second compressor. A turbine connection may fluidly connect the first turbine and the second turbine and a compressor connection fluidly connects the first compressor and the second compressor. The low-pressure turbocharger is mounted at the first end side of the engine block and the high-pressure turbocharger is mounted at a second end side of the engine block. | 08-08-2013 |
20130298536 | Device For Recirculating Exhaust Gas From The Engine Of An Automobile, And Use Of Such A Device - The invention concerns a device for recirculation of exhaust gases from an engine ( | 11-14-2013 |
20130305693 | Exhaust Gas Recirculation Device for an Internal Combustion Engine - An exhaust gas recirculation device for an internal combustion engine includes a return line, which branches off an exhaust tract and leads into an intake tract. A separator component is arranged in the return line. Downstream of the separator component, a gas line, via which additional gas can be supplied, leads into the return line. | 11-21-2013 |
20130333356 | WORKING GAS CIRCULATION ENGINE - In a working gas circulation engine, water vapor contained in exhaust gas after combustion is separated and removed at higher efficiency as compared with the conventional technology, the influence of remaining water vapor is prevented from reducing the ratio of specific heats of working gas and deteriorating the thermal efficiency of the engine. | 12-19-2013 |
20140033685 | EXHAUST SYSTEM HAVING AMMONIA SLIP CATALYST AND EGR CIRCUIT - An exhaust system for a vehicular lean burn internal combustion engine that emits oxides of nitrogen (NOx) and particulate matter (PM) is disclosed. The system comprises a NOx reduction catalyst for reducing NOx in the presence of a nitrogenous reductant, means for introducing the nitrogenous reductant into a flowing exhaust gas, a filter for removing PM from exhaust gas flowing in the exhaust system and a low pressure exhaust gas recirculation (EGR) circuit for connecting the exhaust system downstream of the filter to an air intake of the engine. The EGR circuit comprises an ammonia oxidation catalyst. | 02-06-2014 |
20140060013 | CYCLE PISTON ENGINE POWER SYSTEM - Disclosed is a cycle piston engine power system in which a compression ignition or spark ignition reciprocating piston engine is made non-emissive via a semi-closed cycle, in a manner which produces saleable CO | 03-06-2014 |
20140069086 | EXHAUST SYSTEM FOR SPARK-IGNITED GASEOUS FUEL INTERNAL COMBUSTION ENGINE - An internal combustion engine system includes a spark-ignited internal combustion engine powered by a gaseous fuel. The engine system also includes an air intake in air providing communication with the internal combustion engine. Further, the engine system includes an exhaust system in exhaust gas receiving communication with the internal combustion engine. The exhaust system includes a methane oxidation catalyst through which at least a portion of the exhaust gas flows and an exhaust gas recirculation line in exhaust gas providing communication with the air intake. | 03-13-2014 |
20140260205 | Modular Exhaust Treatment System - A modular exhaust after-treatment system including a plurality of exhaust after-treatment modules. Each module includes a housing defining a non-linear flow path arranged between an inlet passage and an outlet passage. The non-linear flow path includes a first portion adjacent the inlet passage that includes a first exhaust treatment component, a second portion downstream from the first portion, and a third portion downstream from second portion adjacent the outlet passage, wherein the third portion includes a second exhaust treatment component. The plurality of exhaust after-treatment modules are secured to each other in either horizontally or vertically. | 09-18-2014 |
20150082772 | ENGINE - An engine includes an engine body, a DPF case therein, high pressure and low pressure EGR paths, and a supercharger. The high pressure EGR path is between exhaust and intake manifolds. An exhaust gas discharge path extends from the DPF case. An intake pipe extends from the supercharger air compressor. The low pressure EGR path is between the exhaust gas discharge path of the DPF case and the intake pipe. The low pressure EGR path includes a low pressure EGR cooler. An extending direction of a crankshaft defines a longitudinal direction. A flywheel exists on a rear side. A width direction of the engine body defines a lateral direction. The low pressure EGR path includes a rear path portion extending along a rear side of the engine body, and a side path portion extending along a lateral side of the engine body on a side close to the exhaust manifold. | 03-26-2015 |
20150096284 | EGR VALVE WITH RING SEAL FOR ZERO FLOW - A valve assembly and air flow management assembly for use in an exhaust gas recirculation system capable of providing substantially zero air flow at closure, is described. The valve assembly includes a valve housing having a central axis bore, a rotatable support shaft disposed centrally within the housing, a flapper having an outer circumferential edge, the flapper operably connected to the support shaft and, a ring seal integral with the outer circumferential edge of the flapper, wherein the ring seal closes an opening between the flapper and the bore when the flapper is in the closed position. The outer circumferential edge of the flapper further includes a groove having the ring seal disposed within the groove, wherein the seal floats within the groove, eliminating thermal stress and providing improved sealing capabilities. | 04-09-2015 |
20150107230 | EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - In an exhaust gas purification apparatus for an internal combustion engine which is provided with an NOx catalyst arranged in an exhaust passage of the internal combustion engine, the present invention has for its problem to be solved to suppress an increase in exhaust emissions, which results from processing for raising the temperature of the NOx catalyst, to a small level. In order to solve the above-mentioned problem, the exhaust gas purification apparatus for an internal combustion engine of the invention is constructed such that when an amount of increase in the NO | 04-23-2015 |
20150113961 | Diesel Engine Nox Reduction - An engine system for treating nitrogen oxides present in an exhaust gas generated by the combustion of fuel. The engine system includes one or more long breathing lean nitrogen oxide traps that is/are configured to store at least a portion of the nitrogen oxide in the exhaust gas when the lean nitrogen oxide trap operates in an absorption mode. The lean nitrogen oxide trap is also configured for the conversion of the nitrates stored by the lean nitrogen oxide trap during a regeneration event. The engine-out nitrogen oxide levels may be reduced to extend the duration of the absorption process, thereby reducing both the frequency of regeneration events and the associated fuel penalty. The system may include primary and secondary exhaust gas recirculation systems, with exhaust gas from the secondary system being returned to the engine cylinder to reduce the level of nitrogen oxides in that exhaust gas. | 04-30-2015 |
20150345358 | EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE - A three way catalyst and an NO | 12-03-2015 |
20150354481 | SYSTEM AND METHOD FOR ENGINE CONTROL USING PRE-CHAMBER IGNITION - A system and method are disclosed for controlling an engine using pre-chamber ignition. According to at least one aspect of the present disclosure, the system includes a pre-chamber ignition system in communication with a combustion cylinder of the engine. The ignition system includes a pre-chamber having a pre-chamber injector, an igniter, and a pre-chamber port structured to introduce a purge gas into the pre-chamber. The system further includes an exhaust gas recirculation system to dilute a main charge introduced into the cylinder. The ignition system improves engine efficiency and lowers emissions. | 12-10-2015 |
20150377187 | Exhaust Gas Recirculation (EGR) System for Internal Combustion Engines - An exhaust gas recirculation (EGR) system for marine internal combustion engines and other variants is provided. An internal combustion engine is coupled to an electric power generator. An exhaust aftertreatment system connected to the engine includes an exhaust gas recirculation system with an exhaust gas recirculation system having one or more cooling features to reduce an external temperature of the EGR system. | 12-31-2015 |
20150377188 | Powertrain for Hybrid Vehicle Having Dedicated EGR - Various methods and systems may be used to provide recirculated engine exhaust to an engine of a hybrid powertrain. It is assumed that the engine is equipped with a dedicated EGR loop. At least one cylinder is operated as a dedicated exhaust gas recirculation (EGR) cylinder, such that all exhaust of that cylinder is recirculated to the fresh air intake of the engine via the EGR loop. One or more cylinders are operated as main cylinders, such that exhaust from those cylinders exits the engine to the atmosphere. The engine itself is operable for at least part of its operation in a decoupled mode in which the dedicated EGR cylinder is mechanically decoupled from the engine crankshaft. During this decoupled mode, the dedicated EGR cylinder powers a generator. The main cylinders are operable exclusively to provide power to the crankshaft. | 12-31-2015 |
20160040589 | DEDICATED-EGR CYLINDER WITH VARIABLE CHARGE MOTION - Methods and systems are provided for adjusting charge motion control devices coupled to a series of cylinders organized into cylinder groups, one of the cylinder groups including a dedicated EGR cylinder group wherein the cylinders are the only engine cylinder routing exhaust to an engine intake. In one example, a first cylinder group may be a dedicated cylinder group recirculating exhaust to the intake manifold while a second cylinder group may be a non-dedicated cylinder group routing exhaust to a turbine. A method may include adjusting a first charge motion control device coupled to the first cylinder group and a second charge motion control device coupled to the second cylinder group to vary a charge motion level between the first and second cylinder groups. | 02-11-2016 |
20160040629 | INTERNAL COMBUSTION ENGINE - The invention reduces exhaust emission by quickly supplying CO2 into a cylinder, and restraining a delay in EGR, when an EGR request occurs. An engine | 02-11-2016 |
20160084203 | SUPERCHARGED INTERNAL COMBUSTION ENGINE - A supercharged internal combustion engine according to the present invention includes: a compressor arranged in an intake passage through which air that is taken into a combustion chamber flows and for supercharging intake air; an EGR passage that connects an exhaust passage through which exhaust gas that is discharged from the combustion chamber flows and a compressor upstream passage; an EGR valve for opening and closing the EGR passage; an intake bypass passage for releasing gas that has been supercharged by the compressor outside a compressor downstream passage; and an ABV for opening the intake bypass passage by opening when the gas that has been supercharged by the compressor is released outside the compressor downstream passage. The intake bypass passage connects the compressor downstream passage with the EGR passage on the side that is closer to the compressor upstream passage relative to the EGR valve. | 03-24-2016 |
20160115861 | CONDENSED WATER TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE - A condensed water treatment device determines whether a storage water quantity Qw of condensed water generated in an EGR cooler and stored in a condensed water tank is equal to or less than a lower limit t | 04-28-2016 |
20160138451 | CONDENSED WATER TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE - The condensed water treatment device obtains (S | 05-19-2016 |
20160153406 | CONDENSED WATER TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE | 06-02-2016 |
060279000 | Separated reactive constituent of exhaust fed to engine | 3 |
20120110984 | Engine System with Reformer - In an engine system with a reformer being installed in an exhaust pipe to reform a fuel, a control valve for controlling a flow rate of exhaust gas is provided downstream from an installed position of the reformer in the exhaust pipe. In the engine system with the reformer, since a part of the exhaust gas can be trapped in a space between the reformer and an engine chamber by closing the control valve during an exhaust stroke, the reforming efficiency of the reformer can be heightened. | 05-10-2012 |
20120159934 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE - The present invention is intended to suppress the inflow of an ammonia derived compound to an EGR passage. In the present invention, in an exhaust system, there is arranged an ammonia derived compound addition means in such a position as to enable at least a part of the ammonia derived compound added therefrom to arrive at a connection portion of the EGR passage. Further, in the present invention, the inflow of the ammonia derived compound added from the ammonia derived compound addition means into the EGR passage is suppressed by a suppression means. | 06-28-2012 |
20150033710 | EXHAUST GAS COOLER - For exhaust gas recirculation in internal combustion engines operating, for example, with low sulphur marine diesel oil, an exhaust gas cooler with a cooling unit may be applied that uses a liquid injection system to maintain clean and/or clean a cooling surface of the cooling unit. The liquid injection system may provide liquid into an exhaust gas passage upstream of and or along a condensation starting region the cooling surface, thereby reducing the formation of films and deposits from particulate matter and condensing liquid of an evaporated liquid within the exhaust gas such as sulphuric acid and/or water, as those deposits could otherwise at least partially block the exhaust gas cooler. | 02-05-2015 |