Device for conducting away the exhaust gases from internal...

Details Device for conducting away the exhaust gases from internal... Device for conducting away the exhaust gases from internal...

F - Mech Eng,Light,Heat,Weapons

01

N

172/35, 172/38

F01N 1/04 (2006.01) F01N 13/16 (2010.01) F01N 13/18 (2010.01)

Patent

CA 1179274

A B S T R A C T A device for conducting away exhaust gases from internal com- ustion engines with at least one sleeve-shaped silencer which encloses an exhaust pipe and forms an enclosed space around the said exhaust pipe is made up of at least two sleeve-shaped parts which are joined together, or of a sleeve-shaped part and base part, and such that in the space inside the silencer the exhaust pipe features perforations and is fitted with sound absorbers. In the said device the sleeve-shaped parts of the silencer and, if desired, the exhaust pipe and/or the sound absorbers are made of aluminum and/or an aluminum alloy. The sleeve-shaped parts of the silencer are manufactured by im- pact extrusion, deep drawing or a similar method and joined to- gether preferably radial to their longitudinal axis. At the ends these parts taper down to tube-shaped extensions which fit over the exhaust pipe. To join the sleeve-shaped parts and the tube-shaped extensions to the exhaust pipe a region is provided on which an interlocking profile is created by electromagnetic forces. - 1 -

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