A housing for an exhaust system of an internal combustion engine of a vehicle, includes at least two housing shell areas (12, 14) enclosing a housing interior (26) and connected to one another in a connection area (16). A first housing shell area (12) of the two housing shell areas has a first meshing formation (36) in the at least one connection area (16) and a second housing shell area (14) of the two housing shell areas has a second meshing formation (40) that meshes or can be caused to positive-lockingly mesh with the first meshing formation (36). The first meshing formation (36) includes at least one meshing opening (38) and the second meshing formation (40) includes at least one meshing strap (42) meshing with the at least one meshing opening (38) in association with the at least one meshing opening (38) of the first meshing formation (36).

An exhaust muffler for an exhaust system of an internal combustion engine includes a muffler housing (12) with an outer shell (14) enclosing a muffler interior (22), through which exhaust gas can flow. An inner shell (54) is arranged in the muffler interior (22) and covers the outer shell (14) in at least some areas on an inner side (52) facing the muffler interior (22).

There is provided a heat insulating cover for an exhaust device, including outer shell members each having flanges formed at both ends in a peripheral direction, and the adjacent flanges are bonded to each other without generating any gap in an entire axial direction of the heat insulating cover for the exhaust device. A flange includes at least two fixing portions provided apart from each other in the axial direction of an exhausting member, the fixing portions of the adjacent flanges in the peripheral direction abutting each other and being fixed in a face-to-face manner, and includes an inclined portion provided between the fixing portions in the axial direction, the inclined portion being inclined relative to the fixing portions to be positioned closer to the other adjacent flange as being closer to an outer side in the peripheral direction.

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.

Systems are provided for a coupling element. In one example, the coupling element comprises a rotating element configured to rotate an aftertreatment device relative to a section of an exhaust passage in response to a force greater than a threshold force.

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.

The vehicle of the present application includes a vehicle frame; a muffler supported by the vehicle frame; and a supporting unit comprising a rubber damper, located between the muffler and the vehicle frame and, connected to the vehicle frame such that the muffler is suspended from the vehicle frame and supported by the vehicle frame. The supporting unit comprises a first bracket and a second bracket on the first bracket.

An internal combustion engine exhaust system includes an exhaust gas treatment unit carried at a carrier. The carrier has a receiving opening (20), receiving the treatment unit, with a first sealing surface (28) enclosing the opening. The exhaust gas treatment unit has a second sealing surface (42), enclosing a treatment unit longitudinal axis, located opposite the first sealing surface. The exhaust gas treatment unit has a third sealing surface (44), enclosing the treatment unit longitudinal axis. A closing element (48), fixable with the exhaust gas treatment unit to the carrier, has a fourth sealing surface (50), located opposite the third sealing surface. A first sealing element (52) is arranged between the first sealing surface and the second sealing surface. A second sealing element (54) is arranged between the third sealing surface and the fourth sealing surface. The first sealing element and the second sealing element are of identical configuration.

Methods and systems for filling a muffler body with a fibrous material prior to completing assembly of the muffler body are disclosed.

Systems are provided for a coupling element. In one example, the coupling element comprises a rotating element configured to rotate an aftertreatment device relative to a section of an exhaust passage in response to a force greater than a threshold force.