Abstract: An exhaust gas heating arrangement includes a heating unit having a jacketed heating element having a jacket and at least one heating conductor which extends in the jacket and is surrounded by insulating material. The heating unit is spirally wound surrounding a longitudinal center axis (L), wherein a radially inner winding end region of the heating unit is offset with respect to a radially outer winding end region of the heating unit in the direction towards the longitudinal center axis (L).

Abstract: A method for determining NOx sensor data falsification based on remote emission monitoring, includes the steps of: acquiring a plurality of vehicle data sets and urea level data of to-be-tested reference vehicles, wherein vehicle data include NOx sensor readings and corresponding engine data vectors; acquiring urea level data of reference vehicles; calculating standard urea consumption per kilometer; (2) acquiring an average distribution probability of the vehicle data of the to-be-tested vehicles through a probability distribution evaluation step; counting a total proportion of invalid or negative NOx sensor readings in the plurality of vehicle data sets; determining whether the data of the to-be-tested vehicles satisfy one or more falsification conditions; if so, determining that the data from the NOx sensors of the to-be-tested vehicles are falsified; otherwise, determining that the data from the NOx sensors of the to-be-tested vehicles are not falsified.

Abstract: A muffler heat protection system for a vehicle includes a muffler heat shield configured to extend circumferentially around a portion of a muffler, the muffler heat shield having a first end and a second end; a heat shield extension secured to the first end of the muffler heat shield; a double wall exhaust pipe including an inner exhaust pipe and an outer covering pipe disposed over the inner exhaust pipe, the outer covering pipe having a first end portion and a second end portion, and the inner exhaust pipe having a first end portion and a second end portion; wherein the second end portion of the outer covering pipe is welded to the muffler at a welded connection seam; and wherein the heat shield extension projects outward from the muffler heat shield over the welded connection seam.

Abstract: Methods, systems, and devices for particulate filter soot management for internal combustion engines are described herein. A method for particulate filter soot management for internal combustion engines includes determining a quantity of soot on a particulate filter and adjusting a skip fire firing sequence based at least in part on maintaining the quantity of soot on the particulate filter within a desired soot quantity range.

Abstract: An exhaust pipe includes a first end, a second end, and a wall connecting the first end to the second end. The first end has a first opening, and the second end has a second opening that fluidly communicates with the first opening to define a bore. The wall includes an inner curved second and an outer curved section that includes an indentation. The indentation includes a first inwardly extending part and a second inwardly extending part. The second inwardly extending part includes a through hole having an inner opening and an outer opening. The inner opening is located between the outer opening and the second opening. A diameter of the outer opening is less than a diameter of the inner opening. A thickness of the second inwardly extending part is less than the diameter of the outer opening.

Abstract: An exhaust-gas burner for an exhaust-gas system of a motor vehicle includes a combustion chamber, which is surrounded by an outer wall, for a channel section in an exhaust-gas system. A dosing unit is provided for the controlled feed of a fuel into the combustion chamber. An ignition unit is provided for the ignition of a combustible mixture in the combustion chamber. A cooling circuit is provided for the exchange of heat with the dosing unit, and is arranged within the outer wall of the exhaust-gas burner.

Abstract: An exhaust system for an internal combustion engine of a vehicle includes an exhaust gas pipe, at least one branch pipe branching off from the exhaust gas pipe, for example, a pressure pipe (22), as well as at least one support device (38) supporting at least one branch pipe in relation to an exhaust system component. The support device (38) includes a carrier element (42) fixed to the exhaust system component, a clamping element (44) pressing at least one pressure pipe (22) against the carrier element (42), as well as a clamping (tensioning) device (58) acting between the carrier element (42) and the clamping element (44) for tensioning the clamping element (44) in relation to the carrier element (42).

Abstract: A method (200) for ascertaining a catalytic converter state is proposed, wherein an exhaust-gas catalytic converter (130) is monitored on the basis of a catalytic converter model. Here, the catalytic converter model is adapted (250) in a manner dependent on measured values detected by means of one or more sensors (145, 147), wherein a frequency and/or a degree of the adaptation of the catalytic converter model is detected (260). The catalytic converter state is ascertained (270) as non-critical if the frequency and/or the degree of the adaptation do not exceed a predeterminable threshold value or is ascertained (270) as critical if the frequency and/or the degree of the adaptation exceed the predeterminable threshold value.

Abstract: An attachment device includes a support table member and a coupling mechanism. The coupling mechanism includes a coupling bolt and an abutment member having a nut portion. In the abutment member, there is formed a locking protrusion protruding to the side where an auxiliary machine fixing portion is present. In the auxiliary machine fixing portion, there is formed an insertion hole for the coupling bolt and an anti-rotation hole in which the locking protrusion can be fitted.

Abstract: A fluid injection system for a gas turbine engine may comprise a fluid injector configured to inject a fluid into an exhaust flow exiting a turbine section of the gas turbine engine. The fluid injector may be coupled to a turbine exit guide vane located at a forward end of an exhaust system of the gas turbine engine. The fluid may decrease a temperature of the exhaust flow exiting the turbine section and/or increase a thrust of the gas turbine engine.

Abstract: A condensed water drainage device of an exhaust system includes a casing having an inlet on a first side thereof and an outlet on a second side thereof and a deformable member coupled to the first side of the casing and configured to elastically and extendably deform. The drainage device includes a condensed water drainage member coupled to the deformable member to extend the deformable member by pressure of an exhaust gas introduced to the deformable member and having a condensed water drainage hole communicating with the outlet. The drainage device includes a stopper coupled to the second side of the casing to limit movement of the condensed water drainage member and to open or close the condensed water drainage hole according to extension or contraction of the deformable member.

Abstract: An exhaust system includes a housing having an internal cavity defining an exhaust gas passage extending along an axis, at least one exhaust gas aftertreatment component positioned within the internal cavity, and an inlet cover mounted to the housing to provide an open internal area that is upstream of the internal cavity. The inlet cover has a contoured outer surface that includes an inlet opening and at least one sensor opening that is configured to receive an exhaust gas sensor. An inlet tube is mounted to the inlet cover at the inlet opening. A plate is positioned upstream of the at least one gas aftertreatment component and within the open internal area. The plate has a curved surface with a plurality of openings.

Abstract: Method and system are provided for a retractile exhaust tail pipe for vehicles. The system comprises an exhaust tube mounted to an underbody of a vehicle, an exhaust tip slidably mounted to the exhaust tube, the exhaust tip having a plurality of extension shafts fixed on a second end, and an exhaust tip retract module positioned on the exhaust tube circumscribing an outer surface, the exhaust tip retract module having an actuator, a gear, and a plurality of bearings that mate with the plurality of extension shafts on the exhaust tip. In one example, the system reduces a probability of vehicle tail pipes contacting a ground surface in an off-road condition.

Abstract: An automobile includes an internal combustion engine having an emission control system, intake manifold and an exhaust manifold. A hydrogen source is positioned to deliver hydrogen to the intake manifold. Hydrogen and gasoline combustion takes place in a cylinder of the internal combustion engine and a catch device is positioned to receive fluid mixture from the exhaust manifold of the internal combustion engine. The catch device condenses the fluid mixture and a filter receives the condensed fluid mixture from the catch device and filters the condensed fluid mixture. A container is positioned to receive the filtered fluid mixture.

Abstract: A transport refrigeration unit (TRU) is provided and includes a power generation unit, a catalytic element, a tubular element fluidly interposed between the power generation unit and the catalytic element and a control System. The control System is disposed and configured to control operations of the power generation unit in accordance with readings of sensed characteristics of fluid flows between the power generation unit and the catalytic element.

Abstract: An exhaust gas heater for an exhaust gas system of a combustion engine includes a carrier and a heating conductor supported on the carrier. The heating conductor includes a heating region arranged on an axial side of the carrier, wherein the heating conductor is electrically uninsulated in its heating region at least in part. A holding arrangement has at least one holding unit which holds the heating conductor on the carrier in its heating region. The holding unit includes at least one electrically conducting holding block which is in contact with the heating conductor in an electrically uninsulated region of the heating region. The holding block is electrically insulated with respect to the carrier.

Abstract: An exhaust structure of an internal combustion engine having an exhaust passage communicating between an exhaust port and an exhaust pipe. The exhaust structure includes a heat insulating component covering an inner wall of the exhaust port, the heat insulating component includes a first abutting portion disposed at a first side of the heat insulating component at a combustion chamber side and abutting an inner wall of the exhaust port, a second abutting portion disposed at a second side of the heat insulating component at an exhaust pipe side and abutting the inner wall, and a middle section disposed between the first side and the second side. A gap is formed between the middle section and the inner wall, and a bent portion connecting the middle section and the first abutting portion is bending toward the inner wall of the exhaust port from the middle section.

Abstract: An exhaust gas heater, for an internal combustion engine exhaust system, includes a support (22) with an outer circumferential area (24), arranged radially outside in relation to a heater longitudinal axis (A), and a central area (26). A heating conductor (42) is carried at the support and includes a helically wound heating section (44) on a first axial side (34) of the support. The central area is axially offset in a direction of the first axial side of the support in relation to the outer circumferential area such that a radially outer end section of the heating section, which outer end section is located in the area of the outer circumferential area of the support, and a radially inner end section (48) of the heating section, which inner end section is located in the area of the central area of the support, are axially offset in relation to one another.

Abstract: Provided is a muffler that can reduce sound pressure of a standing wave in an outlet pipe and, at the same time, can inhibit generation of flow noise. In one aspect of the present disclosure, the muffler includes a housing, an outlet pipe, a cover that covers the outlet pipe. The outlet pipe includes an outlet end and at least one communication hole. The outlet end opens into the housing. The at least one communication hole is formed in an outer circumferential surface of the outlet pipe. The cover includes a wall portion and an opening. The wall portion is disposed to overlap with the at least one communication hole in a radial direction of the outlet pipe. The opening communicates the at least one communication hole and an internal space of the housing with each other.

Abstract: A particulate matter sensor includes a shield through which exhaust gases flow in a direction of flow from upstream to downstream. A sensing element with a positive electrode and a negative electrode separated from the positive electrode by an electrode gap is located within the shield. The positive electrode includes a plurality of positive electrode branches each having positive electrode extensions extending downstream and separated from each other by positive electrode slots. A positive electrode extension tip for each has a positive electrode extension tip width. The negative electrode includes negative electrode branches each having negative electrode extensions extending upstream which are each flanked on each side thereof by a plurality of negative electrode slots. A negative electrode extension tip for each has a negative electrode extension tip width. A sum of the positive electrode extension tip widths is greater than a sum of the negative electrode extension tip widths.