F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
F01N 3/035 (2006.01) F01N 3/022 (2006.01) F01N 3/28 (2006.01)
Patent
CA 2377027
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.
L'invention concerne une unité (1) servant au traitement de gaz d'échappement produits par des moteurs à combustion interne. Cette unité présente un boîtier (2) dans lequel se trouve un insert (5) composé de deux types de tuyaux tricotés (13, 14). Un de ces tuyaux (13) est constitué exclusivement de fil métallique, tandis que l'autre (14) est constitué soit uniquement soit principalement de fibre minérale. Le tuyau tricoté (13), produit à partir de fil métallique, forme des mailles qui font saillie, côté admission, par rapport au tuyau tricoté (14) en fibre minérale, afin d'absorber en outre de la chaleur et de la transmettre à l'intérieur de l'insert (5). Il est ainsi possible de placer l'insert (5) à un distance telle de la sortie du moteur qu'une surchauffe est évitée dans la plage de pleine charge, tandis que, d'autre part, la réaction du matériau catalytique appliqué sur l'insert est assurée même dans la plage de charge partielle du moteur à combustion interne.
Buck Alfred Ernst
Fetherstonhaugh & Co.
LandOfFree
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