Exhaust line catalyst or muffler shell for motor vehicle and method of producing one such shell
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United States of America Patent
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N/A
Issued Date -
Jul 19, 2007
app pub date -
Sep 25, 2003
filing date -
Sep 30, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to an exhaust line catalyst or muffler shell for a motor vehicle. The inventive shell comprises a tube (8) which is produced by rolling and welding a metal strip (12). At least one of the ends (9, 10) of the aforementioned tube (8) comprises a deformation produced by means of flow turning, such as to define an exhaust gas inlet (4) and/or outlet (5). The weld line (15) which closes the rolled metal strip (12) forms an angle (16) in relation to the axis (17) of the tube (8) at least in the flow turning-shaped segment(s) (13, 14) thereof. The invention also relates to a method of producing one such shell.
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