Abstract: The hoist control cooling system for preferentially cooling components of a variable frequency drive that is controlling a hoist motor. The cooling system includes an inverter temperature sensor, an ambient temperature sensor, a cooling system controller, an inverter cooler, and an ambient cooler. The inverter temperature sensor measures the temperature of the inverter and generates an inverter temperature signal. The ambient temperature sensor measures the temperature of the ambient air in the sealed control enclosure and generates an ambient temperature signal. The cooling system controller communicates with the inverter temperature sensor and the ambient temperature sensor by receiving the inverter temperature signal, the ambient temperature signal, and generating both an inverter cooling signal, and an ambient cooling signal. The inverter cooling signal controls the cooling of the inverter.

Abstract: An apparatus, system, and method for cooling exhaust gases includes an inlet operatively connected to an exhaust port from a diesel engine or the like, and a housing defining a substantially enclosed volume. At least a portion of the volume is larger in cross-section than the inlet in cross-section, such that the exhaust gases expand upon entering the housing from the inlet. At least one outlet larger in collective cross-section than the inlet in cross-section is disposed on the housing and configured to expel the exhaust gases from the housing into the atmosphere.

Abstract: An exhaust treatment device is disclosed. The exhaust treatment device includes a supply of reductant at a first pressure and an exhaust passage. The device further includes a venturi located within the exhaust passage and configured to facilitate reductant entry into the exhaust passage by reducing a pressure of exhaust flowing through the exhaust passage to a second pressure that is less than the first pressure.

Abstract: The passive energy saving device, disclosed herein, may be integrated directly into or added to the exhaust system of an internal combustion engine, to increase the system's fuel efficiency, by acting to reduce the overall backpressure of the total engine and exhaust system. It is a well known fact, accepted by those knowledgeable in the art, that a reduction of exhaust backpressure generally increases the overall fuel efficiency of an internal combustion engine. This passive device consists of a generally funnel shaped outer housing which is open at both ends, and surrounds a smaller diameter, cylindrical exhaust extension tube, which passes longitudinally, on the inside, through the center of the funnel. When airflow is introduced into this funnel, a resulting pressure drop, at the small end of the funnel reduces the backpressure on the vehicle's exhaust system. The net result of the lower exhaust pressure is the increased fuel economy of the vehicle.

Abstract: An exhaust aftertreatment system has a side inlet flow diffuser and provides even flow exhaust distribution to an aftertreatment element.

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: A catalyst system that may regenerate while removing pollutants from an exhaust gas of an engine. The system may have a converter with multiple segments of chambers. At least one of the chambers may be regenerated while the remaining chambers are removing pollutants from the exhaust. The chambers may be rotated in turn for one-at-a-time regeneration. More than one chamber may be regenerated at a time to remove collected pollutants. The system may have plumbing and valves, and possibly mechanical movement of the chambers, within the system to effect the changing of a chamber for regeneration. The chambers connected to the exhaust may be in series or parallel. A particulate matter filter may be connected to the system, and it also may be regenerated to remove collected matter.

Abstract: Exhaust gas systems and methods are disclosed. A system includes an extensible duct assembly to communicate an exhaust gas from an internal combustion engine to an exhaust gas receiver. An angularly positionable ball joint assembly may be coupled to the duct assembly to fluidly and sealably couple the duct assembly to at least one of the outlet and the exhaust receiver. A method of installing an exhaust gas system includes presenting a first portion of the exhaust gas system to one of an exhaust gas outlet and an exhaust gas receiver, and positioning a second portion of the exhaust gas system relative to the other of the exhaust gas outlet and the exhaust gas receiver. The first portion and the second portion may be adjusted to achieve an alignment, and the first portion and the second portion may be sealably coupled to fixedly retain the alignment.

Abstract: The automotive exhaust system includes a plurality of exhaust pipes that feed into a common collector. The collector includes a venturi at the point where the exhaust gases enter the collector from the multiple exhaust pipes. The exhaust gases accelerate through the venturi by virtue that the venturi has a cross-sectional area smaller than that of the exhaust pipes and the collector. A plurality of vanes located in the venturi further accelerate the exhaust gases into a spinning vortex along the interior surface of the main body of the collector to efficiently and quickly expel the exhaust gases out from within the automotive exhaust system. The diameter of the venturi relative to the collector is specific to each diameter of tubing as matched with the corresponding vehicle specifications.

Abstract: An exhaust system of an internal combustion engine and provided with: at least one first high acoustic attenuation path having a first inlet opening; at least one second low acoustic attenuation path having a second inlet opening; and at least one control valve, which is arranged at the second inlet opening of the second path to control the flow of the exhaust gases along the second path.

Abstract: An X-tube (1) is provided, for an at least partly double-flow exhaust system (2) of an internal combustion engine, especially of a motor vehicle, with a housing (3), which comprises two half shells (4, 5) and which has two inlet openings (7, 8) on an inlet side (6) and two outlet openings (10, 11) on an outlet side (9). The housing provides an interior space (12), which is enclosed by the housing (3) and to which the openings (7, 8, 10, 11) are connected in a communicating manner, with a bottom—partition (13), which is designed as a separate component in relation to the two half shells (4, 5) and which divides the interior space (12) into two ducts (14, 15), which are each connected to an inlet opening (7, 8) and to an outlet opening (10, 11) in a communicating manner. The bottom (13) is made permeable for airborne sound and connects the two ducts (14, 15) to one another in an airborne sound-transmitting manner.

Abstract: An anti-fouling device for an internal combustion engine aftertreatment injector includes a member mountable as an interface between an exhaust conduit and the aftertreatment injector. The member has an inlet to receive air from an air source, and is formed with a passageway to guide the received air to at least one outlet to direct the air to a nozzle of the injector. The air flow surrounds the nozzle to prevent or inhibit exhaust gas from the exhaust conduit from contacting the nozzle.

Abstract: A valve assembly may include a valve body, a valve member, and a valve shaft. The valve body may include an inlet, an outlet, and first and second fluid paths in fluid communication with the inlet. The first fluid path may extend axially through at least a portion of the valve body. The second fluid path may be defined by first and second annular walls and may at least partially surround the first fluid path. The valve member is disposed in the valve body and may be movable between a first position preventing fluid flow through the first fluid path and a second position allowing fluid flow through the first fluid path. The valve shaft may be fixed to the valve member and mounted to the valve body for rotation relative to the valve body.

Abstract: An exhaust gas purification device is provided that is capable of diffusing and introducing a reducing agent into a NOx catalyst arranged in a downstream side exhaust gas passage. The exhaust gas purification device is compact and has an exhaust gas passage that returns back in the middle thereof. A housing of the exhaust gas purification device includes a main body in which an upstream side exhaust gas passage and the downstream side exhaust gas passage are housed, and a cap which is attached to a first surface of the main body that is provided with an outlet side opening of the upstream side exhaust gas passage and an inlet side opening of the downstream side exhaust gas passage. The return portion is formed by a space surrounded by the main body and the cap.

Abstract: An exhaust gas filter system in which an asymmetrical channel, in which the diameter of an inlet being opened is larger than that of an outlet disposed and opened at a rear end surface, is formed, may include a first coating layer that is formed at an inner surface of a front portion of the channel by coating a first wash coat, and a second coating layer that is formed at an inner surface of a rear portion of the channel by coating a second wash coat, wherein inner cross section of the front portion is wider than inner cross section of the rear portion.

Abstract: An exhaust gas mixer configured to turn exhaust gas including a reluctant into a backward flow is provided. The mixer is further configured to turn the backward flow into a forward flow and direct the exhaust gas into an SCR.

Abstract: The exhaust gas purification device of an internal combustion engine of the present invention comprises an exhaust passage for guiding an exhaust gas exhausted from an engine to outside, a catalyst provided in the exhaust passage, an injection path connected on an upstream side of the catalyst in the exhaust passage, an additive injection valve installed in the injection path for supplying an additive to the catalyst through the injection path, and an inflow portion provided in a merging portion where the exhaust passage and the injection path merge for having a part of the exhaust gas flowing in the exhaust passage flow into the injection path.

Abstract: The invention concerns an exhaust gas system (1) for an internal combustion engine (11), said system (1) comprising an exhaust gas conduit (13), a particulate filter (15) and a controllable exhaust valve (17) arranged in the exhaust gas conduit (13, said exhaust valve (17) being intended for increasing the exhaust gas temperature (TeXh) by increasing an exhaust gas back pressure in situations where the exhaust gas temperature (TeXh) is too low for performing a regeneration process of the particulate filter (15), a temperature measurement means (12) for determining an exhaust gas temperature (TeXh), a first pressure measurement means (14, 14a) for determining an exhaust gas pressure upstream of the valve (17), a control unit (24) for receiving signals from the measurement means (12, 14) and for controlling the valve (17).

Abstract: The invention relates to a device and a method for metering liquid pollutant-reducing media into an exhaust gas duct of an exhaust gas line of an internal combustion engine, with at least one metering means which is located in or on the exhaust gas duct and downstream to which, viewed in the flow direction of the exhaust gas upstream from a catalytic converter arrangement, a baffle body is connected such that the liquid which has been metered by means of the metering means strikes a baffle body for its distribution. According to the invention the baffle body is formed by a static mixer which has a plurality of preferably single-blade guide vane plates which project away from the mixer plane at a given angle and which are aligned such that the metered liquid, especially liquid droplets, strikes the plane of the guide vane plates essentially perpendicularly.

Abstract: In an exhaust emission control device, a casing 7, which accommodates particulate filter 5 as a post-treatment device through which exhaust gas 3 is passed for cleanup, has an outlet connected with a downstream exhaust passage 12 extending substantially perpendicular to an axis of the casing 7. In order to realize compactness in size of the whole structure without increase of exhaust resistance, an outer chamber 11 encases the casing 7 in a required range to provide required spacing for an open end 7a and an outer periphery 7b of the outlet of the casing 7. The outlet chamber 11 intervenes between the outlet of the casing 7 and the downstream exhaust passage 12.

Abstract: The invention relates to an internal combustion engine system (1), particularly in a motor vehicle, comprising an internal combustion engine (2), a fresh gas system (3) for supplying fresh gas to the internal combustion engine (2), an exhaust gas system (4) for discharging exhaust gas from the internal combustion engine (2), and an exhaust gas recirculation system (5) for removing exhaust gas from the exhaust gas system (4) at a removal point (11) and introducing the removed exhaust gas into the fresh gas system (3) at an introduction point (12). In order to improve exhaust gas recirculation, the exhaust gas system (4) is equipped with an exhaust gas valve (14) downstream of the removal point (11) in order to control the penetrable cross-section of the exhaust gas system (4).

Abstract: An engine part has a construction which prevents the surface discoloration/deterioration associated with a high-temperature exhaust gas, irrespective of the type of Cr used in the formation of a chromium plating layer (hexavalent chromium or trivalent chromium). The engine part includes a metal substrate, a chromium plating layer covering at least a region of a surface of the metal substrate, the region being heated to a temperature of about 350° C. or more, and an intermediate plating layer provided between the metal substrate and the chromium plating layer. The chromium plating layer has a thickness of about 0.2 ?m or more in the region.

Abstract: In an internal combustion engine with two-stage register charging, comprising an exhaust gas line including a flow control valve with a first outlet tube section leading to a low pressure turbine via a high pressure turbine and a second outlet tube section leading directly to the low pressure turbine, the flow control valve includes a flap for controlling the exhaust gas flow from the internal combustion engine so as to either block the exhaust gas flow or direct the exhaust gas to the low pressure turbine selectively through the high pressure turbine or directly to the low pressure turbine or simultaneously via both paths.

Abstract: 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.

Abstract: A valve suitable for closing an orifice (36) of a structure (10) of a silencer (1) for a motor vehicle exhaust line, includes a closing component (44) which is connectable to the structure (10) and capable of adopting a position for closing the orifice (36). The closing component (44) is capable of rising by bending from its closure position. The closing component (44) includes a closure plate (54) capable of closing the orifice (36) and at least one connection plate (56) capable of connecting the closure plate (54) to the structure (10), the closure plate (54) and the or each connection plate (56) having differing thicknesses and/or being made of materials having differing mechanical characteristics.

Abstract: A system for venting crankcase emissions from an engine is disclosed generally comprising a crankcase emissions conduit that communicates blow-by gases from the crankcase into the exhaust flow of an exhaust conduit, which includes a venturi, via an inlet located upstream of the minimum inner diameter of the venturi in order to pump the crankcase emissions therethrough. In certain embodiments, the gases are then directed to a filter assembly, which may include a particulate filter and may include a catalyst for facilitating redox of harmful substances to create harmless compounds prior to venting them or recirculating them in the system. In certain advantageous embodiments, an auxiliary oxygen supply is provided to facilitate these burning processes.

Abstract: A muffler includes a case divided into three chambers by two baffles. The first chamber is closest to, and the third chamber is farthest from, the exhaust pipe. An inlet pipe has a first end connected to the exhaust pipe, and a second end in fluid communication with the third chamber. An outlet pipe expels exhaust and water from the first chamber to the exterior. A connecting pipe provides fluid communication between the first and third chambers. The second end of the inlet pipe is above the bottom interior surface of the outlet pipe. The inlet pipe may have holes in the second chamber, above the bottom interior surface of the outlet pipe. The connecting pipe may have holes in the second chamber. The baffles may have holes for the water to flow from the second and third chambers to the first chamber. Also, an exhaust apparatus utilizing the muffler.

Abstract: An exhaust aftertreatment system, including injection of chemical species, includes a mixer provided by a spiral chamber.

Abstract: Provided is an exhaust emission control device with a sensor arranged at a position where no erroneous detection of data occurs. Provided are a casing which encases a catalyst carrier, a mixing pipe, a dispersion chamber which guides exhaust flowing in the mixing pipe to an exhaust inlet end of the casing, and a sensor. Attachment position of the sensor to the casing is set to a part region of a 360° region around a casing axis when viewed from an exhaust inlet end of the casing, the part region being opposite to the mixing pipe with respect to a border line which is perpendicular to an exhaust-flow center line connecting axes of the mixing pipe and of the casing and which crosses the axis of the casing diametrically of the casing.

Abstract: A system for improving performance of an internal combustion engine is provided. The system may include an exhaust pipe and a leading edge member attached at one end of the exhaust pipe. In one aspect, the leading edge member may be attached to a windward side of the exhaust pipe to define a drawtube arranged to lower a pressure at the end of the exhaust pipe. A device for lowering a pressure at the end of a vehicular exhaust pipe to improve performance of an internal combustion engine may also be provided. The device may include a substantially planar leading edge member and a sleeve configured to be secured to a vehicular exhaust pipe. A bottom edge of the leading edge member may be attached to the sleeve.

Abstract: A mixing element has a grid which includes a plurality of rows parallel to each other and a plurality of deflector elements which project from the grid and are inclined in relation to the grid plane normal. All deflector elements of one row are inclined in the same direction. The deflector elements of at least two immediately adjacent first rows are inclined in the same direction. The mixing element is used in an exhaust system of an internal combustion engine.

Abstract: A high-pressure metering pump for providing reductant in a single fluid engine exhaust dosing system having a solenoid for actuating a piston slidably received within an inner bore of a valve housing of the pump, the inner bore having a pressure chamber with an inlet check valve and an outlet check valve; and wherein movement of the piston causes high pressure reductant to be received at an atomizer of the system, the atomizer being disposed in a location to cause a maximum reduction of undesirable pollutant in the combustion gases of an engine.

Abstract: An exhaust system, in particular for a vehicle with a diesel engine, has a first insert through which exhaust gas flows, a second insert through which exhaust gas flows and which is arranged downstream of the first insert in the flow direction, and an injection device arranged between the first and second inserts for injecting a fluid. A swirling element is provided in the flow path of the exhaust gas downstream of the first insert in the flow direction.

Abstract: An exhaust system (1) is provided for an internal combustion engine (4), especially in a motor vehicle, with two separate exhaust gas lines (2, 3) with a first sound transmission feature (7), which couples the two exhaust gas lines (2, 3) with one another, and with a control (9) for activating and deactivating the first sound transmission connection (7) as a function of at least one operating parameter of the internal combustion engine (4).

Abstract: An exhaust gas heat exchanger for an internal combustion engine includes an exhaust passage and an offset fin. The offset fin includes a plurality of side walls and a plurality of top walls. The offset fin is defined into a plurality of segments that are offset from each other in an offset direction. One of the plurality of top walls of the offset fin has a projection that inwardly projects therefrom. The projection is provided to one of the plurality of segments. The projection of the one of the plurality of segments is opposed to an upstream end portion of the other one of the plurality of side walls of the other one of the plurality of segments that is positioned adjacently downstream of the one of the plurality of segments in the circulation direction.

Abstract: An exhaust aftertreatment device has a unitary cast inlet that is configurable to have a 90° or 180° entry of combustion gasses relative to flow through tubular elements housing a diesel oxidization catalyst and a diesel particulate filter. The cast component provides the primary structural support for a tubular element connected to the casting element.

Abstract: A porous member is disposed within the exhaust stream of a marine engine at a location where its temperature approximates the temperature of the exhaust stream through normal use of the engine. Exhaust gas flows freely through the non-catalytic porous member, but water passing in a reverse direction through the exhaust system is vaporized as it attempts to flow through the non-catalytic porous member.

Abstract: An exhaust diffuser for a truck includes a chamber mountable on a truck exhaust stack pipe. The chamber has a cross sectional area much greater than the cross sectional area of the exhaust pipe, and has a dispersing element disposed in the line of exhaust flow to divert exhaust gases laterally into the chamber volume. One or both of the top and front side walls are formed as a mesh or screen to allow the dispersed exhaust gases to flow outward away from the truck cab in a diffused area.

Abstract: The present invention relates to an exhaust gas purification apparatus of a vehicle, a manufacturing method thereof, and a manufacturing device thereof. The exhaust gas purification apparatus that includes a filter in which a plurality of channels are formed therein such that exhaust gas exhausted from a combustion chamber can pass therethrough to trap pollutants included in the exhaust gas, may include a first plug that plugs an inlet of at least one channel, and a second plug that plugs an outlet of at least one channel, wherein the first plug is inserted in a predetermined distance from the inlet of the at least one channel toward an outlet direction thereof at a front surface of the at least one channel.

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 low emissions 2-stroke natural gas fueled engine includes at least one cylinder with an exhaust port in communication with a silencer/catalytic converter unit. The unit has first and second volumes in communication with each other. The first volume dampens spurious exhaust pressure excursions and removes particulates in the exhaust. The second volume houses an oxidation catalyst for treating exhaust to reduce exhaust emissions. The engine oil has at most 10 ppm zinc content to reduce metal poisons contained in the exhaust prior to contact with the oxidation catalyst. The engine oil preferably has a very low ash content to minimize sulfur combustion components in the exhaust to reduce masking of the oxidation catalyst. The first volume preferably has a pressure relief valve set to relieve at a pressure greater than the maximum normal operating pressure of the engine to avoid excessive pressure excursions of the engine exhaust from damaging the oxidation catalyst.

Abstract: Exemplary embodiments of the present invention provide devices, systems and methods for distribution of an engine exhaust gas to one or more exhaust treatment devices. In one embodiment, an exhaust flow diffuser is provided including a conduit defining an inlet opening, an outlet opening and a flow path therebetween. The conduit includes a first section disposed proximate to the inlet opening and a second section disposed proximate to the outlet opening. The second section has an increasing diameter along its length. The conduit is formed by a first member and a second member both of which extend between the inlet opening and outlet opening to form a portion of the first section and the second section. The first member and the second member each include an engagement feature that extends between the inlet opening and outlet opening.

Abstract: An exhaust system for use with an engine is disclosed. The exhaust system may have a passageway, a flow control device situated to feed reductant into the passageway, and a particulate collection device located in fluid communication with the passageway downstream of the flow control device. The particulate collection device may be catalyzed to promote NOX reduction in a presence of the reductant. The exhaust system may also have a reduction device located in fluid communication with the passageway downstream of the flow control device. The reduction device may be catalyzed to promote NOX reduction in a presence of the reductant, and the particulate collection device and the reduction device may receive reductant from only the flow control device.

Abstract: 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.

Abstract: A variable exhaust gas flow deflector for an internal combustion engine is disclosed. The deflector can include a blade located at least partially within an exhaust gas flow of the engine, the blade having a first position and a second position. The blade can move between the first position and the second position as a function of at least one parameter and/or condition of the exhaust gas and/or the internal combustion engine.

Abstract: A combustion device for an exhaust treatment system is disclosed. The combustion device may have a fuel injector configured to inject fuel toward an exhaust flow. The combustion device may also have an ignition source configured to ignite the injected fuel. The combustion device may further have a deflector configured to redirect at least a portion of the ignited fuel towards a center of the exhaust flow.

Abstract: A valve device, in particular for an exhaust system of an internal combustion engine, has a valve flap which is arranged in a tube and can assume a basic position and an actuating position. A motor-driven valve drive that is arranged outside the tube and is coupled to a shaft of the valve flap by a force transmission element. A mechanical restoring element urges the valve flap into the basic position. The valve drive works against the mechanical restoring element as far as to the actuating position. A lever is connected to one end of the force transmission element and when in the actuating position of the valve flap, is in or near the dead-center position with respect to the force transmission direction from or to the force transmission element.

Abstract: An exhaust manifold connected to exhaust ports of at least three straightly-arranged cylinders of an internal combustion engine is constructed by a primary exhaust pipe which extends from the foremost cylinder of the cylinders in the rearward direction of the engine along the direction of the straight arrangement of the cylinders and a plurality of secondary exhaust pipes which extend from the other cylinders except for the foremost cylinder to the primary exhaust pipe. The secondary exhaust pipes are collected to the primary exhaust pipe so that downstream end portions of the secondary exhaust pipes are wound into the center axis of the primary exhaust pipe at a plurality of points on the center axis, respectively.

Abstract: A dual exhaust system includes a first exhaust component defining a first exhaust path and a second exhaust component defining a second exhaust path that is different from the first exhaust path. A first valve is associated with the first exhaust path and a second valve is associated with the second exhaust path. The first valve and second valve operate independently of each other to vary exhaust flow and provide sufficient noise control for varying applications.

Abstract: When electric power is obtained from a thermoelectric element, a value of electric current is changed, and two combinations of the electric current value and a voltage value (i1, V1) and (i2 and V2) are obtained. An electric current value it at which the maximum electric power Wmax can be obtained is obtained using an electric current-voltage characteristic estimated based on the obtained two combinations of the electric current value and the voltage value. The electric current is controlled such that the value of the electric current becomes equal to the obtained value it when the electric power is obtained from the thermoelectric element. The value it is represented by an equation, it=(i2V1?i1V2)/2(V1?V2).