Patent ID: 6458329
Filing Date: 2002-10-01
Classification: B23K,F01N

Abstract:
An exhaust gas conduction apparatus, comprising:a jacket tube; and a honeycomb body disposed in said jacket tube and having an axial length and end surfaces; a connection region defined by a part of said axial length of said honeycomb body that is brazed to said Jacket tube; said honeycomb body having a multiplicity of mutually adjacent stacked metal sheets having end portions and flow channels formed between said mutually adjacent metal sheets for conducting an exhaust gas flow, said sheets disposed in a stack having a middle and having ends entwined in opposite directions about at least two fixed points; at least one of said sheets having at least one non-corrugated portion at least partially surrounding said honeycomb body and extending from at least one of said end surfaces over only a part of said axial length, said non-corrugated portion and said jacket tube forming a contact region preventing thermal strains in said honeycomb body, said non-corrugated portion substantially directly resting against said jacket tube in contact region, said contact region delimiting said connection region.