An exhaust device in which a muffler is disposed on a side of a straddle-type vehicle includes the muffler including a tail pipe configured to discharge exhaust gas and protruding rearward, a tail cover covering a periphery of the tail pipe behind the muffler, and a protector for heat shield interposed between the muffler and the tail cover. Inner sides of the tail cover and the protector in a vehicle width direction are configured to be fixed to each other by a fastening member. An elastic locking portion is formed on an outer side of one of the tail cover and the protector in the vehicle width direction, and a holding portion configured to hold the elastic locking portion is formed on an outer side of another of the tail cover and the protector in the vehicle width direction.

An exhaust gas treatment assembly for an exhaust gas system of an internal combustion engine includes a housing defining a longitudinal axis. A first exhaust gas treatment unit is inserted in the housing and has a first casing and at least one first exhaust gas treatment unit carried in the first casing. A second exhaust gas treatment unit is inserted in the housing and has a second casing and at least one second exhaust gas treatment unit carried therein. A locking arrangement is for locking a first exhaust gas treatment unit in the housing at least against movement in the direction of the longitudinal axis in a locked state, wherein, when the first exhaust gas treatment unit and the second exhaust gas treatment unit are inserted in the housing, the locking arrangement is blocked in the locked state by the second exhaust gas treatment unit.

An assembly includes a vehicle component and a heat shield. The vehicle component includes a main body, a first plurality of teeth projecting from a first side of the main body, and a second plurality of teeth projecting from a second side of the main body opposite of the first side. The heat shield includes a first shell and a second shell. The first shell defines a first plurality of windows configured to receive the first plurality of teeth. The second shell defines a second plurality of windows configured to receive the second plurality of teeth. The heat shield is attachable to the vehicle component by positioning the heat shield such that the first plurality of teeth projects through the first plurality of windows and the second plurality of teeth projects through the second plurality of windows.

Systems for an integrated exhaust manifold cylinder head are provided. In one example, an exhaust manifold for a vehicle includes a plurality of exhaust runners coupling a plurality of cylinder exhaust gas outlet ports to an exhaust exit port, the plurality of exhaust runners forming at least a first exhaust passage and a second exhaust passage at the exhaust exit port; an upper cooling jacket positioned vertically above the first exhaust passage; a lower cooling jacket positioned vertically below the second exhaust passage; and a central cooling jacket positioned vertically below the first exhaust passage and vertically above the second passage.

A cover for a DEF assembly with openings dimensioned to receive various components that are positioned in the DEF holding tank and associated seals for closing the openings and retaining the components is disclosed. The seals are fixed to the cover by a sonic weld.

A cover for a DEF assembly with openings dimensioned to receive various components that are positioned in the DEF holding tank and associated seals for closing the openings and retaining the components is disclosed. The seals are fixed to the cover by a sonic weld.

A process manufactures an exhaust gas treatment device including a tubular circumferential wall (14) elongated along a longitudinal axis (L) with two axial end areas, an exhaust gas treatment unit (52) arranged in the circumferential wall and a closing element (20, 38) connected to the circumferential wall at the two axial end areas. The exhaust gas treatment unit is held at the circumferential wall by a supporting material layer (54) enclosing the exhaust gas treatment unit and supporting same in relation to the circumferential wall. The process includes arranging a first of the two closing elements at one of the axial end areas of the circumferential wall, pushing the exhaust gas treatment unit enclosed by the supporting material layer into the circumferential wall from the other axial end area (18), and arranging a second of the closing elements at the other axial end area of the circumferential wall.

A valve assembly for an exhaust system of a vehicle. The valve assembly includes a housing, a valve shaft and a valve plate. The housing defines an inlet, an outlet, and a longitudinally exhaust gas passageway in fluid communication with the inlet and the outlet. The valve shaft is rotatable. The valve plate is coupled to the valve shaft and is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is less restricted. The first housing includes spaced apart ears integral with and laterally extending from the first housing. The ears opposing each other. The shaft includes an axis of rotation being positioned at the ears and outside of the exhaust gas passageway.

An insulating device for a thermal and/or acoustic insulation of an exhaust system of a vehicle has a first half shell including at least a first connection rim and a second half shell including at least a second connection rim, the first half shell and the second half shell being connected by a welded joint at the connection rims. The connection rims are reshaped into a multiple fold. Further disclosed are a vehicle exhaust system having an exhaust gas-carrying duct and an insulating device circumferentially surrounding the duct, as well as a method for producing an insulating device for a thermal and/or acoustic insulation of an exhaust system of a vehicle.

An exhaust component for a motor vehicle with improved corrosion resistance, including a housing with outer walls that define an internal volume and one or more inner walls that divide the internal volume into an exhaust chamber and an interior chamber. The interior chamber is isolated from the exhaust chamber and the external environment. At least part of one outer wall or one inner wall is made of a diffusion surface alloyed metal sheet. The diffusion surface alloyed metal sheet comprises a secondary metal that is formed to a primary metal substrate by diffusion. The diffusion surface alloyed metal sheet includes edges that are oriented toward and exposed to the interior chamber. As a result, the primary metal substrate at the edges of the diffusion surface alloyed metal sheet is protected from exposure to corrosives such as salt spray in the external environment and urea in the exhaust chamber respectively.