Exhaust gas treatment articles and methods of manufacturing the same are disclosed herein. An exhaust gas treatment article includes a porous ceramic honeycomb body with multiple channel walls defining cell channels that extend in an axial direction and an outer peripheral surface that extends in the axial direction. The exhaust gas treatment article further includes a metal layer that surrounds the porous ceramic honeycomb body and that is in direct contact with at least a portion of the outer peripheral surface of the porous ceramic honeycomb body. The metal layer includes a joint. The exhaust gas treatment article includes a shim that is located under the joint and that is in direct contact with at least a portion of the outer peripheral surface of the porous ceramic honeycomb body.

The disclosure relates to a retaining flange for a metering valve for an exhaust gas cleaning module of an exhaust gas system of a combustion engine, wherein the retaining flange has a base plate having a central recess with a central axis for receiving the metering valve, wherein the base plate has a mounting surface via which the retaining flange can be positioned on the exhaust gas cleaning module in the region of a supply opening of the exhaust gas cleaning module, wherein a valve surface is provided opposite the mounting surface against which the metering valve can be positioned and wherein at least one retaining arm having a retaining eyelet with a central axis and for a retaining means is provided, on which the metering valve can be at least indirectly fixed, such that the at least one retaining arm has a root connecting to the base plate, from which the retaining arm extends in the radial direction relative to the central axis and in the circumferential direction about the central axis, wherein the root and the retaining eyelet are arranged offset to one another in the circumferential direction.

A pulse exhaust pipe for use with diesel engines an end of the pulse exhaust pipe is in communication with eight cylinders, and another end is in communication with two turbochargers; the pulse exhaust pipe includes three exhaust pipe sections which are separated from each other, each exhaust pipe section discharging to a turbocharger independently, wherein a first exhaust pipe section is in communication with a first and second cylinder, while a second exhaust pipe section is in communication with a third to a sixth cylinder, and a third exhaust pipe section is in communication with a seventh and eighth cylinder. The pulse exhaust pipe may prevent the backward flow of exhaust gas and inlet air back flow, thus increasing inflation efficiency and improving the uniformity of each cylinder. Also provided is a diesel engine installed with said pulse exhaust pipe.

A muffler for an exhaust system of an internal combustion engine includes at least one muffler component with a perforation defined by a plurality of through-flow openings in a wall of the muffler component. The through-flow openings can be flowed through in a flow direction in the direction from an upstream side of the wall to a downstream side of the wall. At least in the case of some or all of the through-flow openings of the perforation, a through-flow opening flow cross section decreases in the flow direction in order to provide a through-flow opening flow-guiding surface.

A catalyst device includes a catalyst, a heating element, and a case. A direction in which exhaust gas flows through an exhaust passage is defined as a gas discharging direction. The case includes an end portion on an upstream side in the gas discharging direction. The heating element includes an end on an upstream side in the gas discharging direction. The end portion of the case is an insulating portion that insulates electricity and protrudes toward an upstream side of the end of the heating element in the gas discharging direction. The catalyst device further includes an outer tube that is separated from the end portion of the case in a radial direction to cover the end portion. The outer tube is formed by a turbine housing that houses a turbine wheel of the forced-induction device.

A method of attaching a casted metal part and a metal hose line includes: providing a cast metal part having a cylindrical portion; providing a metal hose line; heating the metal hose line to a temperature of between 500 and 900 degrees Fahrenheit; positioning the inner diameter of the metal hose line over the outer diameter of the cylindrical portion; allowing the metal hose line to cool to reduce the gap between the inner diameter of the metal hose line and the outer diameter of the cast metal part; and forming a first weld along an outer circumference of the metal hose line, wherein the width of the first weld at the connection between the hose line and cast metal part is 50% or less than the metal hose wall thickness.

An exhaust manifold apparatus for routing an exhaust gas produced by an internal combustion engine is described. The manifold includes a manifold log with a log wall that defines a log bore. The log bore is in fluid communication with an upstream opening of the manifold log and a downstream opening of the manifold log. An inlet runner includes a runner wall that defines a runner bore in fluid communication with the log bore. The inlet runner is engaged to the manifold log at a stress point, which also includes at least one stiffening rib disposed on an interior surface of the log wall and/or the inlet runner wall.

An engine that suppresses damage on a support mechanism of a diesel particulate filter (DPF) due to vibration in the pitch direction, in which the DPF, which purifies exhaust gas from an exhaust manifold, is disposed in an orientation orthogonal or approximately orthogonal to a rotational axis of a crankshaft in a plan view. A support mechanism is provided, which enables a cylinder head, an intake manifold, and an intake collector to support the DPF. The support mechanism includes a first support position in which the cylinder head supports the DPF, a second support position in which the intake manifold supports the DPF, and a third support position in which the intake collector supports the DPF. The third support position deviates from the first support position and the second support position in a direction of the rotational axis of the crankshaft.

A housing connection element (10) for a housing of an exhaust gas treatment assembly unit of an exhaust system, especially for an internal combustion engine, includes a first housing part (16) with an essentially cylindrical first connection area (18) for connection to a circumferential wall (14) of a housing (12) of an exhaust gas treatment assembly unit. A tapered area (20) is adjacent to the first connection area (18). An annular, second housing part (40) is connected to the tapered area (20). A second connection area (46) is provided for connection to an exhaust gas-carrying component of an exhaust system. At least one sensor sleeve (48, 50) is in a sleeve receiving area (24) of the first housing part (16). The sleeve receiving area (24) is formed in the tapered area (20).

An engine that suppresses damage on a support mechanism of a diesel particulate filter (DPF) due to vibration in the pitch direction, in which the DPF, which purifies exhaust gas from an exhaust manifold, is disposed in an orientation orthogonal or approximately orthogonal to a rotational axis of a crankshaft in a plan view. A support mechanism is provided, which enables a cylinder head, an intake manifold, and an intake collector to support the DPF. The support mechanism includes a first support position in which the cylinder head supports the DPF, a second support position in which the intake manifold supports the DPF, and a third support position in which the intake collector supports the DPF. The third support position deviates from the first support position and the second support position in a direction of the rotational axis of the crankshaft.