Hitzebeständige Filterlage, Filterkörper und Verfahren zu seiner Herstellung

摘要

Within the framework of the purification of exhaust gases of mobile internal combustion engines, filter materials are subjected to particularly high thermal and dynamic conditions. As a result, it is advantageous to use these filter materials together in a stable and durable composite. To this end, the invention provides a heat-resistant filter layer made of a material through which fluid can at least partially flow and which has at least one filter section and at least one edge area. A layer thickness that differs from that of the at least one filter section is provided in the at least one edge area. The invention relates also relates to a corresponding filter body and to a method for the production thereof.