An exhaust pipe formed from two pipe elbows each having a pipe wall and a center axis, each pipe elbow being formed from two half shells, wherein each half shell has an inner edge side (Ri) and an outer edge side (Ra), and the inner edge sides and the outer edge sides can be brought into contact with each other in order to form the pipe elbow, wherein each pipe elbow has an end (S1, S2) and the two ends (S1, S2) can be brought into contact with each other in order to form the exhaust pipe. All four half shells are identical parts, wherein each pipe elbow has only one inlet opening (E1, E2) and only one outlet opening (A1, A2).

The disclosure relates to a gas-carrying exhaust gas housing of an internal combustion engine comprising: a manifold section, having a central axis and multiple manifold pipe connectors, for securing on a flange plate for connecting to a cylinder of an internal combustion engine; a catalyst housing section having a central axis; and an exhaust pipe connector section provided downstream of the catalyst housing section, for connecting to an onward-conveying exhaust system. In addition, together with catalyst housing section and exhaust pipe connector section, the manifold section forms a two-shell exhaust housing having a first half shell and a second half shell, wherein the two half shells have a separation plane (T) running parallel to the central axis at least in sections, wherein the manifold section has multiple integral manifold pipe connectors which can be attached directly to a flange plate.

A method of manufacturing a cylindrical housing of an exhaust-gas treatment unit for vehicles includes providing a flat sheet metal part having at least one embossing, and round bending the sheet-metal part in a round bending tool by displacing the sheet metal part between rolls such that the sheet metal part obtains a cylindrical shape having a longitudinal direction parallel to roll axes of the rolls. At least one elastic roll is used such that the embossing of the sheet metal part is maintained during round bending. The longitudinal edges of the cylindrical sheet metal part are then connected to form a tube. A method of manufacturing an exhaust-gas treatment unit is furthermore shown.

An exhaust gas treatment assembly comprises a housing which is radially inwardly deformed in a clamping region to retain a block of ceramic or other material which may be arranged as a filter or catalyst within the housing. The clamping region is deformed to a first surface level and includes local protuberances which extend radially outwardly to a second surface level and support a mounting surface for mounting the assembly in a mounting connector. The first surface level may vary to accommodate the dimensions of each individual block while the second surface level is fixed so that the mounting surface can fit in a mounting assembly with standardised dimensions.

An exhaust gas muffler, for an exhaust system of an internal combustion engine, includes a muffler housing (12) with a circumferential wall (14) elongated in a housing axis (L) direction and with an end wall (20, 22) at each axial end area (16, 18). Two exhaust gas pipe holding openings (44, 46) are provided in the circumferential wall (14) with an exhaust gas pipe (40) fixed to the circumferential wall (14) in an area of each exhaust gas pipe holding opening (44, 46) and open towards a housing interior (24). The exhaust gas pipe (40) is preferably closed at one end area (54) by a closing element (58). The exhaust gas pipe (40) has at least one exhaust gas passage opening (66) in a length area (64) extending between the two exhaust gas pipe holding openings (44, 46).

Provided are solid dispersions, solid molecular complexes, salts and crystalline polymorphs involving propane-1-sulfonic acid {3-[5-(4-chloro-phenyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl]-2,4-difluoro-phenyl}-amide.

A mixer for an emissions cleaning module is provided. The mixer having an elongate body configured for location within a flowhood and a downstream conduit of an emissions cleaning module. A plurality of apertures are included in the mixer and configured to permit passage of exhaust gas therethrough, to promote mixing, in use of an injected additive and a flow of exhaust gas. An emissions cleaning module including such a mixer is also described.

A side feed inlet port for an injector, which makes use of stamped parts to form a compact, high strength three-piece inlet port at a significantly reduced cost. By using an inner sleeve and an outer sleeve, injector sealing is accomplished using the interior sleeve, creating a sealing point, while allowing for inlet conduit attachment to the outer sleeve at, above, or below the sealing point of the DEF injector. The construction of the inlet port is such that there is proper sealing between the inner sleeve and one or more seals, while allowing for the connection between the inlet conduit and the outer sleeve to reduce the overall height of the inlet port, and therefore, the injector. The position of the inlet conduit may be altered without affecting the sealing connection between the inner sleeve and the seal(s), such that the desirable overall height may be achieved.

The invention relates to a housing for a selective catalyst reactor for processing exhaust gas from a combustion engine of a combined heat and power system. The housing comprises an annular shaped plate structure forming an elongate accommodation wall defining an inner accommodation volume for containing a catalyst to be flown through by the exhaust gas. The annular shaped plate structure includes a set of plate elements having the same or similar geometry and dimensions.

A muffler is disclosed. The muffler may comprise an expansion chamber and a double shell housing surrounding the expansion chamber and extending from a first end to a second end. The double shell housing may include an annular perforated inner shell, an annular outer shell surrounding the inner shell, and an insulation between the inner shell and the outer shell. The muffler may further comprise at least one C-bracket between the inner shell and the outer shell at each of the first and second ends of the double shell housing. Each of the C-brackets may include a first leg, a second leg, and a linking portion connecting the first leg and the second leg. The second leg may be in abutting engagement with the outer shell.