| 摘要 |
A device 1 for treating exhaust gases from internal combustion engines has a housing 2, in which an insert 5 is located, which is composed of two types of knit tubes 13, 14. One knit tube 13 consists exclusively of metal wire, while the other knit tube 14 is made completely of mineral fibers, or primarily consists of mineral fibers. The knit tube 13 made of metal wire forms a mesh, which protrudes on the inflow side past the knit tube 14 made of mineral fibers in order to absorb additional heat and to convey it into the interior of the insert 5. Because of this it is possible to arrange the insert at such a distance from the outlet of the engine, that overheating in the full load range is prevented while, on the other hand, the response of the catalytic material is also assured when employed in the partial load range of the internal combustion engine.
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