Abstract: A device for reducing corrosive constituents in an exhaust gas condensate of an internal combustion engine is provided, in which the exhaust gas of the internal combustion engine is recirculated to the internal combustion engine via an exhaust gas recirculation system having an exhaust gas cooler and at least one exhaust gas recirculation line. To protect the exhaust gas recirculation system along with intake air components and the internal combustion engine from the corrosive effects of the exhaust gas condensate, the exhaust gas recirculation system has at least one neutralization unit for neutralizing the corrosive constituents of the exhaust gas condensate, which is connected to at least one component arranged downstream, through which the exhaust gas, which has been freed of nearly all corrosive constituents, flows.

Abstract: The invention relates to a motor vehicle having an internal combustion engine and an exhaust gas system, which comprises an exhaust gas line by means of which the exhaust gas can be removed from the internal combustion engine, as well as an exhaust gas recirculation line by means of which the exhaust gas can be recirculated into the internal combustion engine from the exhaust gas line. The exhaust gas recirculation line has an exhaust gas cooler and a condensate line for removing the condensate from the recirculated exhaust gas, wherein the condensate line is connected with a first end to the exhaust gas recirculation line downstream of the exhaust gas cooler in the direction of flow of the exhaust gas and with a second end to the exhaust gas line.

Abstract: A muffler draining apparatus for a working machine is provided which allows a drain line having excellent heat resistance to be reliably installed, even when a device or equipment is present at the position below a muffler. In a muffler draining apparatus that is provided to a muffler equipped to a hydraulic excavator, and includes a drain line that discharges water accumulated in the muffler to the outside of a vehicle body, the above-described drain line includes a single metal tubing whose one end is connected to the muffler, and whose intermediate portion provided continuous to the one end is extended into the space formed between the muffler and a hydraulic pump located below the muffler. The intermediate portion of the metal tubing includes a single linear portion and plural bent portions. Also, the muffler draining apparatus includes, for example, a single support bracket that is fixed to the muffler, and supports the intermediate portion of the metal tubing.

Abstract: An exhaust system, especially of a motor vehicle has at least one heating device positioned in an area in which condensate accumulates, which is arranged within the exhaust system and in which condensate can accumulate depending on operating states and/or environmental parameters. The formation of condensate accumulation is reduced or prevented by the heating device and a condensate accumulation already formed is removed. As a consequence of the corrosive property of the condensate, the service life of the exhaust system is increased by the removal of such condensate accumulations or by preventing such accumulations from forming. At the same time, the freedom of designing the exhaust system concerning the location and position of the individual components is increased.

Abstract: One exemplary embodiment includes a product including a housing that has a mixer portion and first, second and third openings. The first opening is configured to receive at least a portion of exhaust gases produced by an internal combustion engine, and the second opening is configured to receive intake air. The mixer portion is in communication with the first and second openings to mix the exhaust gases and the intake air into a gas mixture. The third opening is in communication with the mixer portion to flow the gas mixture therethrough. The invention further includes a particulate separator disposed within the housing. The particulate separator is configured to remove particulates from the exhaust gases. The product may be included in a low-pres sure EGR path and/or a high-pressure EGR path.

Abstract: The present invention relates to an internal combustion engine and, more particularly, an internal combustion engine having a new and novel water injection system for improving the efficiency of the engine. In a preferred embodiment the water injection system comprises a condenser for cooling the exhaust exiting the engine sufficiently to condense any water vapor and/or fuel vapor to form a liquid mixture or water and fuel, collecting the liquid mixture, and mixing the liquid mixture with fuel being directed into the engine.

Abstract: An exhaust conditioning system for use with a tractor towing an air seeding implement comprises an exhaust duct arranged to communicate exhaust emissions from the engine of the tractor to the seed fan of the air seeding implement. A condenser receives the exhaust emissions of the exhaust duct therethrough between the engine and the seed fan. A condenser fan cools a surface of the condenser. A computer controller controllably varies a rate of at least one of the condenser fan, the seed fan or revolutions per minute of the engine responsive to a sensed temperature of the exhaust emissions to maintain the temperature of the exhaust emissions within a selected temperature range and such that the exhaust emissions are arranged to influence germination of the seeds either by humidity, oxidised organic matter or bio-char.

Abstract: A condensed water discharge apparatus is capable of smoothly excreting residual condensed water in a muffler. The device may include a through hole formed at the bottom of a muffler case, an inflow pipe communicated to the muffler case and in which exhaust gas flows, an exhaust pipe communicated to the atmosphere so that exhaust gas is exhausted from the muffler case thereto, a thermoelement, and a control valve mounted at the through hole so as to selectively open/close the through hole when driving or stopped by sliding about the through hole.

Abstract: 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.

Abstract: An exhaust filter system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A fastener limits expansion movement of the heating element relative to the PF.

Abstract: An exhaust gas recirculation system for an engine having an exhaust system includes an EGR cooler in fluid communication with an exhaust manifold. The EGR cooler receives a portion of the engine's exhaust gas. A cooled EGR passage is downstream of the EGR cooler, and an air intake line is in fluid communication with an intake manifold. A collecting vessel is located at or downstream of the EGR cooler for receiving condensate, and a condensate evacuation line is in fluid communication with the collecting vessel for receiving condensate from the collecting vessel.

Abstract: An exhaust system associated with a power source is disclosed. The exhaust system may have an exhaust stack extending from the power source to an exterior of the exhaust system and a moisture collection device disposed within the exhaust stack to collect moisture from the exhaust stack. The exhaust system may also have a moisture entrainment device associated with the moisture collection device to facilitate entrainment of the collected moisture into an exhaust flow of the power source.

Abstract: In one aspect, the invention is directed an exhaust gas treatment apparatus that can be used to treat exhaust gas streams from vehicles having gasoline engines or diesel engines, from manufacturing plants, from incineration facilities, from coal fired stations, natural gas turbines or from virtually any exhaust gas stream. In one embodiment, the invention includes a particulate matter remover, a heat exchanger, a first reactor, a second reactor and a reagent protection device for preventing communication of reagent in the second reactor with ambient air.

Abstract: An exhaust system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A catalyst substrate or a flow converter is disposed upstream from said heating element. The catalyst substrate oxidizes the exhaust prior to reception by the heating element. The flow converter converts turbulent exhaust flow to laminar exhaust flow prior to reception by the heating element.

Abstract: In an exhaust heat recovery system for an internal combustion engine, a heat pipe includes an evaporation portion in which a working fluid is heated and evaporated by heat exchange with exhaust heat from the internal combustion engine, a plurality of condensing portions in which the working fluid from the evaporation portion is cooled and condensed by heat exchange with respective subjects to be heated, and connection piping through which the condensing portions are connected to the evaporation portion in parallel with respect to the evaporation portion so as to form a closed circuit. Furthermore, a switching portion is located to switch a flow of the working fluid from the evaporation portion to any one between the condensing portions.

Abstract: An internal combustion engine arrangement includes an EGR circuit connecting a exhaust circuit to an intake circuit to incorporate a portion of exhaust gases in the intake gases, at least one turbine located, and a dedicated drain conduit which connects the EGR circuit to the exhaust circuit. The EGR circuit includes at least one low position point and the dedicated drain conduit permanently connects the low position point of the EGR circuit to the exhaust circuit upstream of the turbine.

Abstract: A condensation dispersion device for use with a power source having an exhaust recirculation system is disclosed. The condensation dispersion device may have a housing with an inlet configured to receive exhaust, and an outlet configured to discharge exhaust. The condensation dispersion device may also have a first static mixing device disposed within the housing and being configured to redirect condensate from an internal wall of the housing into the exhaust.

Abstract: The invention relates to an arrangement for supplying an internal combustion engine (1), particularly of a motor vehicle, with a stream of combustion air (2) and for removing a stream of exhaust gas (3) from the internal combustion engine (1). The arrangement comprises a fresh air channel (4) for conveying the stream of combustion air (2), an exhaust channel (5) for conveying the stream of exhaust gas (3), an exhaust gas turbocharger (6) comprising a condenser (7) disposed in the fresh air channel (4) and comprising a turbine (8) disposed in the exhaust gas channel (5), a swirl generator (9) connected directly upstream of the condenser (7) for the stream of combustion air (2) arriving in the condenser (7), and a low-pressure exhaust gas return (10) comprising a return channel (11) emptying into the fresh air channel (4) upstream of the condenser (7) for conveying an exhaust gas return stream (12).

Abstract: A method and system of providing compressed low NOx exhaust gas for industrial purposes including for use in augmenting crude oil production including the steps of extracting exhaust gas from an engine consuming a controllable mixture of hydrocarbon fuel and air, compressing and cooling the exhaust gas to condense water therefrom, measuring the pH of the condensed water, employing the measured pH to adjust the ratio of the hydrocarbon fuel and air supplied to the engine to achieve a substantially neutral pH measurement and thereby obtain compressed exhaust gas having a low NOx content.

Abstract: A system is provided that draws heat from an open-loop engine cycle into a closed-loop working fluid circulatory system that utilizes computer-aided feedback mechanisms. The closed-loop working fluid draws engine heat from multiple sources: exhaust stack gases, the engine block, the engine transmission, and the engine headers and exhaust manifold near the valves. Heat exchangers are arranged in an ascending pattern according to the temperature of the heat at each heat generating location of the open-loop engine cycle. A wankel or similar type engine receives the heated working fluid and rotates a shaft connected to a generator to generate electricity. An electrolysis unit is powered by the generated electricity and separates water into hydrogen and oxygen. A reformation unit receives fuel such as diesel and the generated hydrogen to reform the fuel prior to injection into the engine for combustion.

Abstract: An exhaust pipe for a vehicle-mounted engine. An inner pipe inserted in an outer pipe contacts, at its outer end, with the inner peripheral surface of the outer pipe at a first position, the outer pipe contacts the inner pipe at a second position different from the first position, and thus an expansion chamber is formed between the inner pipe the outer pipe. The inner pipe includes a plurality of communication holes for communicating the inside of the inner pipe and the expansion chamber, thereby forming a muffler. An exhaust gas purification catalyst is provided within the outer pipe adjacent to the expansion chamber. On the inner peripheral surface of the outer pipe, a weir for stopping condensed water is provided between the outer end of the inner pipe and the exhaust gas purification catalyst.

Abstract: A system for providing heat to the dump body of a dump truck is disclosed. The disclosed system is suitable for use with truck equipped with a diesel particulate filter. When enabled, the system controls the exit path of exhaust gas such that it is routed to the dump body during normal operating conditions. In one embodiment, when the diesel particulate filter enters a regeneration cycle, high heat is produced. The system then routes the exhaust gas as to bypass the dump body to avoid heat damage from the higher temperature exhaust gas.

Abstract: An ultra-compact combination exhaust muffler and aftertreatment element and water trap assembly provides exhaust flow through an aftertreatment element surrounded by an annular water collection space receiving water diverted and shed from an upper dome cap above the aftertreatment element and below the upper outlet. In a further embodiment, the assembly includes housing sections separable from each other at a service joint axially between axial ends of the aftertreatment element for ease of servicing. In a further aspect, the aftertreatment element has an axial end within a housing section saving axial extension space.

Abstract: The invention relates to a dilution and dispersion device for the exhaust and/or cooling gases of a vehicle's engine, that incorporates blades and a hub. The hub of said device incorporates means intended to reduce the loss in the gaseous flow rate generated by said gases. The flow rate loss reduction means are constituted by one or several openings in said hub or by a profiled element allowing said gases to be defected towards said blades. The blades are fastened to a ring.

Abstract: A system for trapping liquid exhaust during a cold start of an internal combustion engine is provided. As one example, a system includes, an exhaust inlet, an exchange area fluidly coupled downstream of said exhaust inlet, a trap coupled to said exchange area having a liquid exhaust chamber for collection of liquid exhaust, and a catalytic converter fluidly coupled downstream to said exchange area. In another example, a method includes condensing, at least partly, exhaust from the engine in an exchange area in an exhaust system into liquid exhaust, collecting liquid exhaust into a trap disposed in the exchange area, and evaporating the liquid exhaust into the exchange area after an evaporation temperature is reached in the trap.

Abstract: An exhaust treatment system and method for removing particulates and/or gases from exhaust gases and for cooling exhaust gases. The exhaust treatment system may include a venturi nozzle for injecting a mixture of water and air into the exhaust gases to cause particulate matter and/or certain gases present in the exhaust gases to adhere to water droplets in the mixture. The exhaust treatment system may further include a receptacle positioned in proximity to the exhaust outlet and adapted for collecting water and particulate matter exiting the exhaust outlet, a filter adapted to receive water from the receptacle and remove particulate matter from the water, and/or a heat transfer device adapted to receive water from the filter and remove heat from the water.

Abstract: 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.

Abstract: An exhaust structure for an engine is disclosed. The exhaust structure includes an exhaust line, through which the exhaust gas discharged from the engine passes. The exhaust line has a double pipe structure capable of preventing the condensed water formed in the exhaust line from entering the engine, so that it is possible to prevent engine failure, and thus, to achieve an enhancement in the durability and reliability of the engine.

Abstract: A system and method for improving emissions of an engine capable of combusting a multi-component fuel comprised of two or more fuels is presented. According to the method, the passage exhaust gases are processed in said exhaust system is determined in part from the concentration of one component fuel.

Abstract: Systems for operating on an internal combustion engine coupled to an exhaust conduit and an intake conduit include an exhaust gas recirculation conduit in fluid communication with the exhaust conduit, a heat exchanger coupled to the exhaust gas recirculation conduit to cool at least a portion of the amount of exhaust, a liquid accumulator adapted to accumulate liquid from at least a portion of the amount of exhaust, and a condensate conduit coupled to the liquid accumulator. Methods of operating an engine include: receiving an exhaust gas recirculation stream from a main exhaust stream, cooling the exhaust gas recirculation stream, removing at least some condensate from the exhaust gas recirculation stream after cooling, and adding at least some of the condensate removed from the exhaust gas recirculation stream to the main exhaust stream and/or to an inlet charge of the engine.

Abstract: A fuel supply system (1) is disclosed for use with an internal combustion engine or a fuel cell system (408). The fuel supply system may include a water supply (4) for supplying water; a fuel supply (3) for supplying fuel; a fuel reformer (10) including an air inlet (52,70) converts the water, air, and fuel into hydrogen and byproducts, and supplies the hydrogen to combustion chambers (2) of an internal combustion engine; and an injector subsystem (5) coupled to the water supply injects water into the combustion chambers following ignition of the hydrogen in the combustion chambers. The fuel supply system may include a water recovery subsystem (6) coupled to an exhaust output (9) of the internal combustion engine, the internal combustion engine producing an exhaust including water vapor and CO2, the water recovery subsystem comprising a filter (13) for removing CO2, from the water vapor.

Abstract: 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.

Abstract: An engine (10) comprising a drain system (80) for removing the fuel-filter-separated water into the engine's exhaust line (61). The fuel-filter-removed water can be directly introduced into the exhaust line (61), and/or it can be directly introduced into a hydrocarbon-dosing line (71) that later merges with the exhaust line (61). A control system (90) can control the fuel-filter-removed-water introduction, such as by adjustment of a valve (84) in the drain line (83), the system (90) and can time such introduction so as to not disturb engine operation.

Abstract: An exhaust system associated with a power source is disclosed. The exhaust system may have an exhaust stack extending from the power source to an exterior of the exhaust system and a moisture collection device disposed within the exhaust stack to collect moisture from the exhaust stack. The exhaust system may also have a moisture entrainment device associated with the moisture collection device to facilitate entrainment of the collected moisture into an exhaust flow of the power source.

Abstract: A condensation dispersion device for use with a power source having an exhaust recirculation system is disclosed. The condensation dispersion device may have a housing with an inlet configured to receive exhaust, and an outlet configured to discharge exhaust. The condensation dispersion device may also have a first static mixing device disposed within the housing and being configured to redirect condensate from an internal wall of the housing into the exhaust.

Abstract: An inert gas production and compression system for extracting and compressing an inert gas from an exhaust gas of an engine includes a power and inert gas generator, an inert gas processing system, and an inert gas compressor. The inert gas processing system includes an extraction system to receive exhaust gas from an engine and to remove liquids and particulate from the exhaust gas; a cooling system to receive the exhaust gas from the engine and at each stage of a multi-stage gas compressor; and a separator for separating liquids and particulate from the exhaust gas. The inert gas production and compression system can include one or more controllers and a microprocessor system to monitor the operation of the inert gas processing system and to manage the inert gas processing system based on inputs from the controllers.

Abstract: A system for recovering and purifying water from a gas stream may include, a gas stream purification unit for purifying the gas stream, a water separation unit for separating water from the purified gas stream, and a water purification unit for purifying the water separated by the water separation unit. The gas stream purification unit may include comprise a soot reactor and a catalytic oxidation reactor or both. The water separation unit may include a condenser, a water extractor and a cyclic reverse osmosis system.

Abstract: An engine system for a vehicle, comprising of an engine producing exhaust gases; an exhaust passage for transporting the exhaust gases to a surrounding environment; a first heat pipe having a first end in thermal contact with the exhaust passage and a second end in thermal contact with a first fluid of the engine system; a second heat pipe having a first end in thermal contact with the exhaust passage and a second end in thermal contact with a second fluid of the engine system; and wherein the first heat pipe is configured to provide increased heat transfer between the exhaust passage and the first fluid during at least a first temperature condition and the second heat pipe is configured to provide increased heat transfer between the second fluid and the exhaust passage during at least a second temperature condition different than the first temperature condition.

Abstract: A vertical exhaust water trap assembly has an outer housing and an internal housing or exhaust tube defining an annular water collection spaced therebetween bypassing a central exhaust flow area.

Abstract: A method and apparatus for removing contaminant emissions from the exhaust stream of a combustion device, comprising increasing the dew point of the exhaust gases; reducing the velocity of the exhaust stream; reducing the temperature of the exhaust stream such that a part of the gases in the exhaust stream are condensed into liquid form, such that the liquid traps particles and noxious gases from the exhaust stream yielding a liquid extraction stream and a residual gaseous exhaust stream; and collecting the extraction stream.

Abstract: An exhaust aftertreatment device has a turbulator provided by a tube having a perforated star-plugged downstream end.

Abstract: An internal combustion engine system for automotive vehicle wherein liquid water is produced by cooling a portion of exhaust gases at elevated pressure to induce condensation. The use of elevated pressure allows condensation to occur at a higher dew point which is easier to realize with cooling by ambient air. Liquid water condensate is collected and provided to an electrolytic cell for electrolysis into gaseous hydrogen and oxygen. Hydrogen gas generated by the cell is used by the internal combustion engine to reduce internal combustion engine wear and to reduce exhaust pollutants especially during start-up. Alternate uses of the liquid water include a replenishment of engine coolant and window washing fluid.

Abstract: Described here are systems and methods for treating fuel injected exhaust streams. In general, the systems comprise a fuel injector, a pre-combustor, and a fuel combustor. The methods described herein include methods for regenerating a NOx trap or a DPF, and methods for generating a substantially uniform fuel air mixture at a fuel combustor inlet, or a substantially uniform temperature at a fuel combustor outlet. The methods of regenerating a NOx trap typically comprise the steps of injecting fuel into an exhaust stream, passing the stream through a pre-combustor, operating the pre-combustor to at least partially combust the injected fuel, reacting the fuel and exhaust stream mixture within a fuel combustor to generate a reducing gas mixture, and introducing the reducing gas mixture into a NOx trap, whereby the NOx trap is regenerated. Similar methods for regenerating a diesel particulate filter are also described. Control strategies are also provided.

Abstract: In an exhaust path, a HC trapping material which traps HC contained in exhaust gas temporarily, a H2O trap which traps H2O contained in exhaust gas and a CO oxidation catalyst are arranged in this order from the upstream side, wherein the H2O trap is disposed just upstream of and close to the CO oxidation catalyst. H2O and HC which are components disturbing the activity of the CO oxidation catalyst can be removed efficiently and the adsorption heat and condensation heat of H2O can be efficiently utilized to raise the temperature of the CO oxidation catalyst so that early activation of the CO oxidation catalyst is accomplished just after an engine starts.

Abstract: An exhaust water trap assembly has separated and spaced exhaust tubes, and a dome cap blocking entry of water to protect an upstream catalytic converter or soot filter. A first tube extends axially upwardly into a housing, and a second tube is spaced vertically thereabove. The dome cap on the top end of the first tube blocks exhaust flow axially upwardly therepast and blocks entry of water axially downwardly therepast.

Abstract: A moisture trap is formed as an integral part of the wall of an exhaust conduit. Tapered surfaces can be provided to direct condensate downwardly and into a reservoir of the moisture trap where the moisture is retained until the temperature of the exhaust system reaches adequate magnitudes to evaporate the water and conduct it out of the exhaust system along with the exhaust gases.

Abstract: A mixing device for mixing the exhaust gas of an internal combustion engine flowing in an exhaust pipe with a reducing agent as well as an exhaust gas purification system having such a mixing device, in which a mixing body is positionable in the exhaust pipe and which includes a gas impact surface and a spray impact surface so that exhaust gas flowing from the internal combustion engine is able to strike the gas impact surface and reducing agent, which is suppliable transversely to the exhaust gas flow, is able to strike the spray impact surface, the spray impact surface and the gas impact surface forming disjointed sub-areas of the surface of the mixing body. The mixing device distributes the reducing agent uniformly over the cross section of the exhaust pipe and mixes it uniformly with the exhaust gas.

Abstract: The device includes a pair of flat planar vanes securely mounted within a cylindrical housing. The vanes have a medial slit extending from the center to a longitudinal end of the vane. The vanes are interconnected at the slits so that they are in criss-cross positioning. The vanes are axially angled so that when positioned in an intake air duct the vanes impart a swirling motion to the air entering the engine providing more complete mixing of the air and fuel and when positioned in an exhaust passageway the vanes impart a swirling motion to the exhaust gases exiting the engine providing scavenging of the exhaust gases.

Abstract: For the regeneration of an NOx storage catalyst by means of hydrogen in a secondary hydrogen process, the hydrogen required for the regeneration is taken from a primary hydrogen process.

Abstract: A process for recovering potable water from the exhaust gases of an internal combustion engine is disclosed. In this process the exhaust gases are cooled causing water to condense out, and the water formed is passed through particulate filters, activated carbon filters and ion exchange resin filters. In this process, the water is treated to reduce the levels of nitrates, sulfates, acidic and other organic components therein (for example, by passing it through a flow through capacitor) before the water is passed through the ion exchange resins. The apparatus for practicing this process is also disclosed.